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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.Since water is the basis of life, composing the greater part of the tissues of all living things, the crucial problem of desert animals is to survive in a world where sources of flowing water are rare. And since man’s inexorable necessity is to absorb large quantities of water at frequent intervals, he can scarcely comprehend that many creatures of the desert pass their entire lives without a single drop.Uncompromising as it is, the desert has not eliminated life but only those forms unable to withstand its desiccating effects. No most skinned, water-loving animals can exist there. Few large animals are found. The giants of the North American desert are the deer, the coyote, and the bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by stealth. Yet they are not emaciated.Having adapted to their austere environment, they are as healthy as animals anywhere else in the word. The secret of their adjustment lies in the combination of behavior and physiology. None could survive if, like mad dogs and Englishmen, they went out in the midday sun; many would die in a matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.The word “burrows” in the passage mostly means                    .

Xem chi tiết 1.9 K lượt xem 6 năm trước

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.Since water is the basis of life, composing the greater part of the tissues of all living things, the crucial problem of desert animals is to survive in a world where sources of flowing water are rare. And since man’s inexorable necessity is to absorb large quantities of water at frequent intervals, he can scarcely comprehend that many creatures of the desert pass their entire lives without a single drop.Uncompromising as it is, the desert has not eliminated life but only those forms unable to withstand its desiccating effects. No most skinned, water-loving animals can exist there. Few large animals are found. The giants of the North American desert are the deer, the coyote, and the bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by stealth. Yet they are not emaciated.Having adapted to their austere environment, they are as healthy as animals anywhere else in the word. The secret of their adjustment lies in the combination of behavior and physiology. None could survive if, like mad dogs and Englishmen, they went out in the midday sun; many would die in a matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.According to the passage, one characteristic of animals living in the desert is that ____________.

Xem chi tiết 610 lượt xem 6 năm trước

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.Since water is the basis of life, composing the greater part of the tissues of all living things, the crucial problem of desert animals is to survive in a world where sources of flowing water are rare. And since man’s inexorable necessity is to absorb large quantities of water at frequent intervals, he can scarcely comprehend that many creatures of the desert pass their entire lives without a single drop.Uncompromising as it is, the desert has not eliminated life but only those forms unable to withstand its desiccating effects. No most skinned, water-loving animals can exist there. Few large animals are found. The giants of the North American desert are the deer, the coyote, and the bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by stealth. Yet they are not emaciated.Having adapted to their austere environment, they are as healthy as animals anywhere else in the word. The secret of their adjustment lies in the combination of behavior and physiology. None could survive if, like mad dogs and Englishmen, they went out in the midday sun; many would die in a matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.According to the passage, creatures in the desert          .

Xem chi tiết 1.9 K lượt xem 6 năm trước

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.Since water is the basis of life, composing the greater part of the tissues of all living things, the crucial problem of desert animals is to survive in a world where sources of flowing water are rare. And since man’s inexorable necessity is to absorb large quantities of water at frequent intervals, he can scarcely comprehend that many creatures of the desert pass their entire lives without a single drop.Uncompromising as it is, the desert has not eliminated life but only those forms unable to withstand its desiccating effects. No most skinned, water-loving animals can exist there. Few large animals are found. The giants of the North American desert are the deer, the coyote, and the bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by stealth. Yet they are not emaciated.Having adapted to their austere environment, they are as healthy as animals anywhere else in the word. The secret of their adjustment lies in the combination of behavior and physiology. None could survive if, like mad dogs and Englishmen, they went out in the midday sun; many would die in a matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.The phrase “those forms” in the passage refers to all of the followings EXCEPT ___________.

Xem chi tiết 2.3 K lượt xem 6 năm trước

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.Since water is the basis of life, composing the greater part of the tissues of all living things, the crucial problem of desert animals is to survive in a world where sources of flowing water are rare. And since man’s inexorable necessity is to absorb large quantities of water at frequent intervals, he can scarcely comprehend that many creatures of the desert pass their entire lives without a single drop.Uncompromising as it is, the desert has not eliminated life but only those forms unable to withstand its desiccating effects. No most skinned, water-loving animals can exist there. Few large animals are found. The giants of the North American desert are the deer, the coyote, and the bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by stealth. Yet they are not emaciated.Having adapted to their austere environment, they are as healthy as animals anywhere else in the word. The secret of their adjustment lies in the combination of behavior and physiology. None could survive if, like mad dogs and Englishmen, they went out in the midday sun; many would die in a matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.Man can hardly understand why many animals live their whole life in the desert, as ____________.

Xem chi tiết 2.2 K lượt xem 6 năm trước

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.Since water is the basis of life, composing the greater part of the tissues of all living things, the crucial problem of desert animals is to survive in a world where sources of flowing water are rare. And since man’s inexorable necessity is to absorb large quantities of water at frequent intervals, he can scarcely comprehend that many creatures of the desert pass their entire lives without a single drop.Uncompromising as it is, the desert has not eliminated life but only those forms unable to withstand its desiccating effects. No most skinned, water-loving animals can exist there. Few large animals are found. The giants of the North American desert are the deer, the coyote, and the bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by stealth. Yet they are not emaciated.Having adapted to their austere environment, they are as healthy as animals anywhere else in the word. The secret of their adjustment lies in the combination of behavior and physiology. None could survive if, like mad dogs and Englishmen, they went out in the midday sun; many would die in a matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.The word “tissues” in the passage mostly means.

Xem chi tiết 594 lượt xem 6 năm trước

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.Since water is the basis of life, composing the greater part of the tissues of all living things, the crucial problem of desert animals is to survive in a world where sources of flowing water are rare. And since man’s inexorable necessity is to absorb large quantities of water at frequent intervals, he can scarcely comprehend that many creatures of the desert pass their entire lives without a single drop.Uncompromising as it is, the desert has not eliminated life but only those forms unable to withstand its desiccating effects. No most skinned, water-loving animals can exist there. Few large animals are found. The giants of the North American desert are the deer, the coyote, and the bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by stealth. Yet they are not emaciated.Having adapted to their austere environment, they are as healthy as animals anywhere else in the word. The secret of their adjustment lies in the combination of behavior and physiology. None could survive if, like mad dogs and Englishmen, they went out in the midday sun; many would die in a matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.The title for this passage could be           .

Xem chi tiết 1.6 K lượt xem 6 năm trước

Read the following passage and mark the letter A, B, C, or Don your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.THE FAMILYStatesmen define a family as "a group of individuals having a common dwelling and related by blood adoption or marriage, (8)_________ includes common-law relationships". Most people are born into one of these groups and will live their lives as a family in such a group.Although the definition of a family may not change, (9)_________ relationship of people to each other within the family group changes as society changes. More and more wives are taking paying jobs, and, as a result, the roles of husband, wife and children are changing. Today, men expect to work for pay for about 40 years of their lives, and, in today's marriages (10)_________ which both spouses have paying jobs, women can expect to work for about 30 to 35 years of their lives. This means that man must learn to do their share of family tasks such as caring for the children and daily (11)_________. Children, too, especially adolescents, have to (12)_________ with the members of their family in sharing household tasks.The widespread acceptance of contraception has meant that having children is as matter of choice, not an automatic result of marriage. Marriage itself has become a choice. As alternatives such as common-law relationship and single-parent families have become socially acceptable, women will become more independent.Điền ô số 12

Xem chi tiết 823 lượt xem 6 năm trước

Read the following passage and mark the letter A, B, C, or Don your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.THE FAMILYStatesmen define a family as "a group of individuals having a common dwelling and related by blood adoption or marriage, (8)_________ includes common-law relationships". Most people are born into one of these groups and will live their lives as a family in such a group.Although the definition of a family may not change, (9)_________ relationship of people to each other within the family group changes as society changes. More and more wives are taking paying jobs, and, as a result, the roles of husband, wife and children are changing. Today, men expect to work for pay for about 40 years of their lives, and, in today's marriages (10)_________ which both spouses have paying jobs, women can expect to work for about 30 to 35 years of their lives. This means that man must learn to do their share of family tasks such as caring for the children and daily (11)_________. Children, too, especially adolescents, have to (12)_________ with the members of their family in sharing household tasks.The widespread acceptance of contraception has meant that having children is as matter of choice, not an automatic result of marriage. Marriage itself has become a choice. As alternatives such as common-law relationship and single-parent families have become socially acceptable, women will become more independent.Điền ô số 11

Xem chi tiết 562 lượt xem 6 năm trước

Read the following passage and mark the letter A, B, C, or Don your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.THE FAMILYStatesmen define a family as "a group of individuals having a common dwelling and related by blood adoption or marriage, (8)_________ includes common-law relationships". Most people are born into one of these groups and will live their lives as a family in such a group.Although the definition of a family may not change, (9)_________ relationship of people to each other within the family group changes as society changes. More and more wives are taking paying jobs, and, as a result, the roles of husband, wife and children are changing. Today, men expect to work for pay for about 40 years of their lives, and, in today's marriages (10)_________ which both spouses have paying jobs, women can expect to work for about 30 to 35 years of their lives. This means that man must learn to do their share of family tasks such as caring for the children and daily (11)_________. Children, too, especially adolescents, have to (12)_________ with the members of their family in sharing household tasks.The widespread acceptance of contraception has meant that having children is as matter of choice, not an automatic result of marriage. Marriage itself has become a choice. As alternatives such as common-law relationship and single-parent families have become socially acceptable, women will become more independent.Điền ô số 10

Xem chi tiết 584 lượt xem 6 năm trước

Read the following passage and mark the letter A, B, C, or Don your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.THE FAMILYStatesmen define a family as "a group of individuals having a common dwelling and related by blood adoption or marriage, (8)_________ includes common-law relationships". Most people are born into one of these groups and will live their lives as a family in such a group.Although the definition of a family may not change, (9)_________ relationship of people to each other within the family group changes as society changes. More and more wives are taking paying jobs, and, as a result, the roles of husband, wife and children are changing. Today, men expect to work for pay for about 40 years of their lives, and, in today's marriages (10)_________ which both spouses have paying jobs, women can expect to work for about 30 to 35 years of their lives. This means that man must learn to do their share of family tasks such as caring for the children and daily (11)_________. Children, too, especially adolescents, have to (12)_________ with the members of their family in sharing household tasks.The widespread acceptance of contraception has meant that having children is as matter of choice, not an automatic result of marriage. Marriage itself has become a choice. As alternatives such as common-law relationship and single-parent families have become socially acceptable, women will become more independent.Điền ô số 9 

Xem chi tiết 506 lượt xem 6 năm trước

Read the following passage and mark the letter A, B, C, or Don your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.THE FAMILYStatesmen define a family as "a group of individuals having a common dwelling and related by blood adoption or marriage, (8)_________ includes common-law relationships". Most people are born into one of these groups and will live their lives as a family in such a group.Although the definition of a family may not change, (9)_________ relationship of people to each other within the family group changes as society changes. More and more wives are taking paying jobs, and, as a result, the roles of husband, wife and children are changing. Today, men expect to work for pay for about 40 years of their lives, and, in today's marriages (10)_________ which both spouses have paying jobs, women can expect to work for about 30 to 35 years of their lives. This means that man must learn to do their share of family tasks such as caring for the children and daily (11)_________. Children, too, especially adolescents, have to (12)_________ with the members of their family in sharing household tasks.The widespread acceptance of contraception has meant that having children is as matter of choice, not an automatic result of marriage. Marriage itself has become a choice. As alternatives such as common-law relationship and single-parent families have become socially acceptable, women will become more independent.Điền ô số 8

Xem chi tiết 471 lượt xem 6 năm trước

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 from 43-50. Before the 1500’s, the Western plains of North America were dominated by farmers. One group, the Mandans, lived in the upper Missouri River country, primarily in present-day North Dakota. They had large villages of houses built close together. The tight arrangement enabled the Mandans to protect themselves more easily from the attacks of others who might seek to obtain some of the food these highly capable farmers stored from one year to the next. The women had primary responsibility for the fields. They had to exercise considerable skill to produce the desired results, for their northern location meant fleeting growing seasons. Winter often lingered; autumn could be ushered in by severe frost. During the spring and summer, drought, heat, hail, grasshoppers, and other frustrations might await the wary grower. Under such conditions, Mandan women had to grow maize capable of weathering adversity. They began as early as it appeared feasible to do so in the spring, clearing the land, using fire to clear stubble from the fields and then planting. From this point until the first green corn could be harvested, the crop required labor and vigilance. Harvesting proceeded in two stages. In August the Mandans picked a smaller amount of the crop before it had matured fully. This green corn was boiled, dried, and shelled, with some of the maize slated for immediate consumption and the rest stored in animal-skin bags. Later in the fall, the people picked the rest of the corn. They saved the best of the harvest for seeds or for trade, with the remainder eaten right away or stored for later use in underground reserves. With appropriate banking of the extra food, the Mandans protected themselves against the disaster of crop failure and accompanying hunger.The women planted another staple, squash, about the first of June, and harvested it near the time of the green corn harvest. After they picked it, they sliced it, dried it, and strung the slices before they stored them. Once again, they saved the seed from the best of the year`s crop. The Mandans also grew sunflowers and tobacco; the latter was the particular task of the older menWhich of the following processes does the author imply was done by both men and women?

Xem chi tiết 439 lượt xem 6 năm trước

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 from 43-50. Before the 1500’s, the Western plains of North America were dominated by farmers. One group, the Mandans, lived in the upper Missouri River country, primarily in present-day North Dakota. They had large villages of houses built close together. The tight arrangement enabled the Mandans to protect themselves more easily from the attacks of others who might seek to obtain some of the food these highly capable farmers stored from one year to the next. The women had primary responsibility for the fields. They had to exercise considerable skill to produce the desired results, for their northern location meant fleeting growing seasons. Winter often lingered; autumn could be ushered in by severe frost. During the spring and summer, drought, heat, hail, grasshoppers, and other frustrations might await the wary grower. Under such conditions, Mandan women had to grow maize capable of weathering adversity. They began as early as it appeared feasible to do so in the spring, clearing the land, using fire to clear stubble from the fields and then planting. From this point until the first green corn could be harvested, the crop required labor and vigilance. Harvesting proceeded in two stages. In August the Mandans picked a smaller amount of the crop before it had matured fully. This green corn was boiled, dried, and shelled, with some of the maize slated for immediate consumption and the rest stored in animal-skin bags. Later in the fall, the people picked the rest of the corn. They saved the best of the harvest for seeds or for trade, with the remainder eaten right away or stored for later use in underground reserves. With appropriate banking of the extra food, the Mandans protected themselves against the disaster of crop failure and accompanying hunger.The women planted another staple, squash, about the first of June, and harvested it near the time of the green corn harvest. After they picked it, they sliced it, dried it, and strung the slices before they stored them. Once again, they saved the seed from the best of the year`s crop. The Mandans also grew sunflowers and tobacco; the latter was the particular task of the older menThroughout the passage, the author implies that the Mandans ________.

Xem chi tiết 375 lượt xem 6 năm trước

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 from 43-50. Before the 1500’s, the Western plains of North America were dominated by farmers. One group, the Mandans, lived in the upper Missouri River country, primarily in present-day North Dakota. They had large villages of houses built close together. The tight arrangement enabled the Mandans to protect themselves more easily from the attacks of others who might seek to obtain some of the food these highly capable farmers stored from one year to the next. The women had primary responsibility for the fields. They had to exercise considerable skill to produce the desired results, for their northern location meant fleeting growing seasons. Winter often lingered; autumn could be ushered in by severe frost. During the spring and summer, drought, heat, hail, grasshoppers, and other frustrations might await the wary grower. Under such conditions, Mandan women had to grow maize capable of weathering adversity. They began as early as it appeared feasible to do so in the spring, clearing the land, using fire to clear stubble from the fields and then planting. From this point until the first green corn could be harvested, the crop required labor and vigilance. Harvesting proceeded in two stages. In August the Mandans picked a smaller amount of the crop before it had matured fully. This green corn was boiled, dried, and shelled, with some of the maize slated for immediate consumption and the rest stored in animal-skin bags. Later in the fall, the people picked the rest of the corn. They saved the best of the harvest for seeds or for trade, with the remainder eaten right away or stored for later use in underground reserves. With appropriate banking of the extra food, the Mandans protected themselves against the disaster of crop failure and accompanying hunger.The women planted another staple, squash, about the first of June, and harvested it near the time of the green corn harvest. After they picked it, they sliced it, dried it, and strung the slices before they stored them. Once again, they saved the seed from the best of the year`s crop. The Mandans also grew sunflowers and tobacco; the latter was the particular task of the older menThe word "disaster" is closest in meaning to ________

Xem chi tiết 489 lượt xem 6 năm trước

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 from 43-50. Before the 1500’s, the Western plains of North America were dominated by farmers. One group, the Mandans, lived in the upper Missouri River country, primarily in present-day North Dakota. They had large villages of houses built close together. The tight arrangement enabled the Mandans to protect themselves more easily from the attacks of others who might seek to obtain some of the food these highly capable farmers stored from one year to the next. The women had primary responsibility for the fields. They had to exercise considerable skill to produce the desired results, for their northern location meant fleeting growing seasons. Winter often lingered; autumn could be ushered in by severe frost. During the spring and summer, drought, heat, hail, grasshoppers, and other frustrations might await the wary grower. Under such conditions, Mandan women had to grow maize capable of weathering adversity. They began as early as it appeared feasible to do so in the spring, clearing the land, using fire to clear stubble from the fields and then planting. From this point until the first green corn could be harvested, the crop required labor and vigilance. Harvesting proceeded in two stages. In August the Mandans picked a smaller amount of the crop before it had matured fully. This green corn was boiled, dried, and shelled, with some of the maize slated for immediate consumption and the rest stored in animal-skin bags. Later in the fall, the people picked the rest of the corn. They saved the best of the harvest for seeds or for trade, with the remainder eaten right away or stored for later use in underground reserves. With appropriate banking of the extra food, the Mandans protected themselves against the disaster of crop failure and accompanying hunger.The women planted another staple, squash, about the first of June, and harvested it near the time of the green corn harvest. After they picked it, they sliced it, dried it, and strung the slices before they stored them. Once again, they saved the seed from the best of the year`s crop. The Mandans also grew sunflowers and tobacco; the latter was the particular task of the older menThe word “ they” in paragraph 3 refers to_____

Xem chi tiết 386 lượt xem 6 năm trước

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 from 43-50. Before the 1500’s, the Western plains of North America were dominated by farmers. One group, the Mandans, lived in the upper Missouri River country, primarily in present-day North Dakota. They had large villages of houses built close together. The tight arrangement enabled the Mandans to protect themselves more easily from the attacks of others who might seek to obtain some of the food these highly capable farmers stored from one year to the next. The women had primary responsibility for the fields. They had to exercise considerable skill to produce the desired results, for their northern location meant fleeting growing seasons. Winter often lingered; autumn could be ushered in by severe frost. During the spring and summer, drought, heat, hail, grasshoppers, and other frustrations might await the wary grower. Under such conditions, Mandan women had to grow maize capable of weathering adversity. They began as early as it appeared feasible to do so in the spring, clearing the land, using fire to clear stubble from the fields and then planting. From this point until the first green corn could be harvested, the crop required labor and vigilance. Harvesting proceeded in two stages. In August the Mandans picked a smaller amount of the crop before it had matured fully. This green corn was boiled, dried, and shelled, with some of the maize slated for immediate consumption and the rest stored in animal-skin bags. Later in the fall, the people picked the rest of the corn. They saved the best of the harvest for seeds or for trade, with the remainder eaten right away or stored for later use in underground reserves. With appropriate banking of the extra food, the Mandans protected themselves against the disaster of crop failure and accompanying hunger.The women planted another staple, squash, about the first of June, and harvested it near the time of the green corn harvest. After they picked it, they sliced it, dried it, and strung the slices before they stored them. Once again, they saved the seed from the best of the year`s crop. The Mandans also grew sunflowers and tobacco; the latter was the particular task of the older menWhy does the author believe that the Mandans were skilled farmers?

Xem chi tiết 494 lượt xem 6 năm trước