khoahoc.vietjack.com

Danh sách câu hỏi ( Có 2,491,244 câu hỏi trên 49,825 trang )

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 25

Xem chi tiết 607 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 word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 24

Xem chi tiết 2.1 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 word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 23

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 word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 22

Xem chi tiết 1.6 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 word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 21

Xem chi tiết 5.4 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.The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people.These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge.Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time.But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes. Wiki software enables ____.

Xem chi tiết 494 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.The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people.These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge.Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time.But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes. We can say that Jimmy Wales____.

Xem chi tiết 575 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 word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 20

Xem chi tiết 1.3 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.The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people.These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge.Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time.But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes. The user of Wikipedia can do all of the following EXCEPT____.

Xem chi tiết 308 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 word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 19

Xem chi tiết 1.2 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.The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people.These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge.Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time.But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes. The word “approach” in the third paragraph of the passage means____. 

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 word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 18

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.The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people.These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge.Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time.But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes. The word “brainchild” in the second paragraph of the passage can be best replaced by____.

Xem chi tiết 434 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.The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people.These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge.Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time.But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes. Microsoft’s Encarta is cited in the passage as an example of ____.

Xem chi tiết 535 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 word for each of the blanks from 16 to 25.Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 17

Xem chi tiết 1.4 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 from .Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.          The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health. On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.          As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.The most suitable title for the passage could be ________.

Xem chi tiết 5.4 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.The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people.These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge.Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time.But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes. The phrase “the word” in the second paragraph refers to____.

Xem chi tiết 448 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 word for each of the blanks from 16 to 25. Over the last few years, the use of the Internet has increased dramatically in French schools, offices, and homes and this trend continues to grow. Who could have imagined, even in the last decade, that we would be able to (16) __________ our friends, colleagues and clients around the world simply through the (17) __________ of a mouse and a modem? There is no doubt, like any invention, that the Internet can be used for good or bad but it is here to stay and has (18) __________ the way we communicate.In the world of business, no corporation can be competitive unless it (19) __________ access to the Internet. It has become essential to advertise your product and service in this way and an increasing number of companies are using this opportunity to reach a greater number of (20) __________ consumers. Indeed, the bigger the website is, (21) __________ professional the company seems to be.Similarly in education, the opportunities that the Internet can (22) __________ are vast. More and more students are (23) __________ on the Internet for their research; for instance, a physics undergraduate in Paris can download information from a university library in the United States in minutes. From the latest research in scientific and linguistic fields to new theories in psychology and history, all this may be published on the world-wide web.What will be the future for the Internet in France? It has been (24) __________ that 60% of homes and 50% business will have access to the Internet within five years. Children, students and professionals will be able to (25) __________ and explore the world as they have never done before.Điền vào ô số 16

Xem chi tiết 1.2 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.The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people.These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge.Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time.But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes. The phrase “these writers” in the first paragraph refers to ____.

Xem chi tiết 353 lượt xem 6 năm trước