Danh sách câu hỏi:

Câu 1:

He was not a good father. He neglected his children.

Xem đáp án

Câu 2:

She is a very kind-hearted, quiet woman.

Xem đáp án

Câu 3:

Up to now_________,space  exploring still remains_________very  risky, complex, and expensive endeavor.

Xem đáp án

Câu 4:

Allan: “Do you mind if I use your dictionary?”             Nick: “ _________.”

Xem đáp án

Câu 5:

The higher one rises in the atmosphere_________, the temperature generally becomes.

Xem đáp án

Câu 6:

I       the sales manager now if I _________such a terrible mistake.

Xem đáp án

Câu 7:

With the help of modern devices, those who suffer hearing or vision                  find life easier.

Xem đáp án

Câu 8:

We should study hard                        our parents can be proud of us.

Xem đáp án

Câu 9:

_________humans, toads have tongues fastened at the front of their mouths, which allow them to catch insects.

Xem đáp án

Câu 10:

It was not until she arrived at school_________realized she had forgotten her book.

Xem đáp án

Câu 11:

Jane: What about going out for a walk after supper?

Jimmy: _________. Walking after meals is good for health.

Xem đáp án

Câu 12:

M. Jackson, _________combined powerful vitality with great dignity, was one of  the best known gospel singers in the United States.

Xem đáp án

Câu 14:

Concert dates are not guaranteed and are subject to changes, modifications, or _________               

Xem đáp án

Câu 15:

My education has given me a _________view of life.

Xem đáp án

Câu 16:

I'm sorry, but I've got_________much work to do to come to the beach today.

Xem đáp án

Câu 17:

Written to be performed on _________, Wilder’s play OUR TOWN depicts the life   in a New England community.

Xem đáp án

Câu 18:

The workers decided to_________ until their demands were met.

Xem đáp án

Câu 19:

Color and light, taken together,_________the aesthetic impact of the interior of a building.

Xem đáp án

Câu 20:

Many plant and animal species are now in_________ of extinction.

Xem đáp án

Câu 21:

You _________to your teacher like that. It was very rude.

Xem đáp án

Câu 30:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 30

Xem đáp án

Câu 31:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind

Điền vào ô 31

Xem đáp án

Câu 32:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 32

Xem đáp án

Câu 33:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 33

Xem đáp án

Câu 34:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 34

Xem đáp án

Câu 35:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 35

Xem đáp án

Câu 36:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 36

Xem đáp án

Câu 37:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 37

Xem đáp án

Câu 38:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 38

Xem đáp án

Câu 39:

Read the following passage, and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

The role of translation enabling literature to pass beyond its natural frontiers is receiving growing recognition. In view of the general increase in this (30)_____, it is not surprising that many   people with literary interests and a knowledge of languages should think of adopting translating as a full-or part-time (31)_____. Some advice may usefully be given to such would-be translators.

The first difficulty the beginner will (32)_____is the unwillingness of publishers to entrust a translator to anyone who has not already (33)____a reputation for sound work. The least publishers  will (34)____ before commissioning a translator is a fairly lengthy specimen of the applicant’s work, even if unpublished. Perhaps the best way the would-be translator can begin is to select some books of the type (35)_____ he or she feels competent and eager to translate, translate a (36)_____section of   the book and then submit the book and the translation to a suitable publisher. If he or she is extremely lucky, this may result in a commission to translate the book. More probably, however, publishers   will

(37)             the book as such but if they are    favorably (38)             by the translation, they  may very possibly commission some other books of a (39)                           nature which they already have in mind.

Điền vào ô 39

Xem đáp án

Câu 40:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

Based on the information in paragraph 1, the term bride price can best be explained   as              .

Xem đáp án

Câu 41:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

According to paragraph 1,  all of  the following are true of the bride price  EXCEPT            .

Xem đáp án

Câu 42:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

Why does the author mention the payment of money?

Xem đáp án

Câu 43:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

The word “prominent” in the passage is closest in meaning to____.

Xem đáp án

Câu 44:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

The phrase “The first” in the passage refers to the first ______.

Xem đáp án

Câu 45:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

It can be inferred from the paragraph 2 that African families____ .

Xem đáp án

Câu 46:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

Which of the sentences below best expresses the essential information in the underlined sentence in the passage?

Xem đáp án

Câu 47:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

The author uses the word “marital” to indicate that the problems are related to____.

Xem đáp án

Câu 48:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families

According to paragraph 3, the initial negotiations over the bride price help ensure the stability of the family because_____ .

Xem đáp án

Câu 49:

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

The custom of paying a bride price before marriage is still a well-established part of many African cultures. In paying a bride price, the family of the groom must provide payment to the family of the bride before the marriage is allowed. The bride price can vary greatly from culture to culture in Africa. In the Zulu and Swazi tribes of southern Africa, the bride price often takes the form of cattle. In Western African, kola nuts, shells, and other goods are often used for the payment of the bride price. The actual payment of money sometimes takes place, but the payment of goods is more frequent. The amount of paid in a bride price can also vary. In modern times, the bride price is occasionally quite small and its value is mainly symbolic. However, the bride price can still be quite high, especially among prominent or highly traditional families.

There are a number of justifications used to explain the payment of bride price. The first is that the bride price represents an acknowledgement of the expense the bride’s family has gone in order to raise her and bring her up as a suitable bride for the groom. It also represents payment for the loss of a family member, since the bride will officially become a member of her husband’s family and will leave her own. On a deeper level the bride price represents payment for the fact that the bride will bring children into the family of the groom, thereby increasing the wealth of the family. This concept is reinforced by the fact that the bride price must often be returned if the bride fails to bear children.

The payment of the bride price has quite a number of effects on African society. First, the payment of bride price acts to increase the stability of African family structures. Sons are dependent on their fathers and older relatives to help them pay the bride price of their wives, and this generally leads to greater levels of obedience and respect. The negotiations between the two families concerning the bride price allow the parents and other family members to meet and get to know one another before the marriage. Finally, since the bride price must often be repaid in case of divorce, the bride’s family often works to make sure that any marital problems are solved quickly. Bride prices also work as a system of wealth distribution in African cultures. Wealthier families can afford to support the marriage of their son, and thus their wealth is transferred to other families.

The paragraph following the passage most probably discusses ______.

Xem đáp án

Câu 50:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

 

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

The author implies that a migraine_________.

Xem đáp án

Câu 51:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

The word it in paragraph 1 refers to _________.

Xem đáp án

Câu 52:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain

The prior treatment for migraines included medicine that_________.

 

Xem đáp án

Câu 53:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

The word “enhanced” in paragraph 4 is closest in meaning to_________.

Xem đáp án

Câu 54:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

The new research indicates that the neurons in the brain of migraine sufferers _________.

Xem đáp án

Câu 55:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

Scientists have recently learned more about the cause of migraines from _________.

Xem đáp án

Câu 56:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

According to the passage, scientists now know that unusual neurons in certain people  are the cause of migraines, they _________.

Xem đáp án

Câu 57:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

Scientists have caused neurons to react by applying_________.

Xem đáp án

Câu 58:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

The best title for this passage would be what?

Xem đáp án

Câu 59:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

The pain of a migraine headache can virtually disable a person who suffers from it. Millions and millions of people suffer from migraines, although many of them do not even recognize that a migraine is different from a regular headache. A migraine is not at all the same as a normal headache, and it seems to have a very physical cause.

One symptom of a migraine is a precursor, which is a visual aura before an attack. Yet only about a third of patients actually experience that, and it is, therefore, not a requirement in the diagnosis. Other symptoms include increased pain when a person moves, nausea, and sensitivity to light and sound.

Scientists now believe that migraines are caused, not by abnormal blood vessels as previously believed, but instead by a unique electrical disorder of brain cells. Physicians used to treat migraines with medicine to constrict blood vessels because of the belief that dilated blood vessels were the cause. The new research has been enhanced by imaging devices that allow scientists to watch patients’ brains during an attack. The results show that sufferers have abnormally excitable neurons, or brain nerve cells. Prior to the attack, the neurons suddenly fire off electrical pulses at the back of the brain, which ripple like waves on a lake after a stone hits the water. They ripple across the top and then the back of the brain, ultimately affecting the brain stem where the pain centers are located. The pain then generates possibly from the brain stem itself or from blood vessels inflamed by the rapidly changingblood flow, or perhaps from both.

Scientists have experimented by applying a powerful magnet to stimulate the neurons and discovered that some people’s brains react differently than others’. When stimulation was applied to the brains of people who had suffered migraines, they saw the initial aura, and some actually suffered migraines. When the same stimulation was applied to the brains of people who had never suffered migraines, they realized no effect and the neurons showed no change.

Scientists and doctors continue to work on the research in an attempt to find the perfect treatment. It is considered important to treat migraines because it is believed that prolonged untreated attacks could cause physical changes in the brain leading to chronic pain.

Researchers believe that long-term migraine sufferers _________.

Xem đáp án

Câu 63:

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions

Xem đáp án

4.0

1 Đánh giá

0%

100%

0%

0%

0%