单项选择题

【案例分析题】Space is a dangerous place, not only because of meteors but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation. But their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in space. The unit of radiation is called "rein". Scientists have reason to think that a man can put up with far more radiation than 0.1 ream without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage——a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed (畸形的) children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and, during the outward and return journeys, the Apollo crew accumulated a large amount of reams. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.The harm radiation has done to the Apollo crew members （）

A．is insignificant
B．is enormous
C．seems overestimated
D．remains unknown

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单项选择题

【案例分析题】
In only two decades Asian Americans have become the fastest growing the U.S. minority. As their children began moving up through the nation"s schools, it became clear that a new class of academic achievers was emerging. Their achievements are reflected in the nation"s best universities, where mathematics, science and engineering departments have taken on a decidedly Asian character. This special liking for mathematics and science is partly explained by the fact that Asian-American students who began their educations abroad arrived in the U.S with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by the promise of a good job after college. Asians feel they will be judged more objectively. And the return on the investment in education is more immediate in something like engineering than with an arts degree.
Most Asian-American students owe their success to the influence of parents who are determined that their children take full advantage of what the American educational system has to offer. An effective measure of parental attention is homework. Asian parents spend more time with their children than American parents do, and it helps. Many researchers also believe there is something in Asian culture that breeds success, such as ideals that stress family values and emphasize education.
Both explanations for academic success worry Asian Americans because of fears that they feed a typical racial image. Many can remember when Chinese, Japanese and Filipino immigrants were the victims of social isolation. Indeed, it was not until 1952 that laws were laid down giving all Asian immigrants the right to citizenship.
While making tremendous achievements at college, Asian-American students （）

A．feel they are mistreated because of limited knowledge of English
B．are afraid that their academic successes bear a strong Asian character
C．still worry, about unfair treatment in society
D．generally feel it a shame to have to depend on their parents

单项选择题

【案例分析题】"A roiling stone gathers no moss (苔藓)," but there is one living animal that does gather moss, the three-toed sloth (树懒) of South America. This slowest-moving member of the animal kingdom is so inactive that moss actually gathers on its body and turns it green—strange as it seems!
Most of the sloth"s life is spent motionless, hanging upside down from a limb. And that is the way its hair grows. Long and coarse, the strands (串) from receptacles (花托) for the damp jungle algae (水藻) that turn the brown fur a mossy green. Actually this moss helps the animal survive because it serves as a perfect camouflage against the leaf trees and hides the sloth from the jungle"s swift-moving hunters. The sloth would have little chance of survival on the ground. With long, curved claws hooked over the limb of a leafy tree, it spends the long hot hours during the day drowsing and eating. Inch by inch, it strips the leafy limbs bare and crawls slowly down the trunk to find a new dining spot, but only at night.
In addition to looking rather like a vegetable, the sloth is a strict vegetarian. Running out of its favorite leaf is about the only thing that will make a sloth move. Then its appetite may even force the animal into swimming a stream to reach a juicy succulent (多汁的植物). It will also force it into fighting to keep the tree all to itself. The sloth is lazy and prefers to be alone, but it will tolerate its own relatives!A suitable title for this passage might be ______.

A．Wild Animals
B．Animal Kingdom
C．Moss Growth
D．The Lazy Animal

单项选择题

【案例分析题】Space is a dangerous place, not only because of meteors but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation. But their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in space. The unit of radiation is called "rein". Scientists have reason to think that a man can put up with far more radiation than 0.1 ream without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage——a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed (畸形的) children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and, during the outward and return journeys, the Apollo crew accumulated a large amount of reams. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.According to the first paragraph, the atmosphere is essential to man in that ______.

A．it protects him against the harmful rays from space
B．it provides sufficient light for plant growth
C．it supplies the heat necessary for human survival
D．it screens off the falling meteors

单项选择题

【案例分析题】When I began reading Catch-22, I thought it was a farcical satire on life in the United States Army Air Force. Later I believed that Mr. Heller"s target was modern war and all those who are responsible for waging it. Still later it seemed that he was attacking social organization and anyone who derives power from it. But by the end of the book it had become plain to me that it is——no other phrase will do——the human condition itself which is the object of Mr. Heller"s outraged fury and disgust.
A reviewer must always keep an anxious eye on the state of his currency . If he announces too many masterpieces, he risks inflation( though it is sometimes forgotten by some of us that the cowardice of perpetual crabbing (挑剔) receives its own kind of punishment). It does not seem many weeks since I was proclaiming that Malcolm Lowry"s Under the Volcano is one of the great English novels of the century; and not long before that I was urging that attention should be paid to the magnificent and neglected talent of William Gerhardi.
But at the risk of inflation I cannot help writing that Catch-22 is the greatest satirical work in English since Erewhon. For the fact is that all my successive interpretations of this book now seem to have been accurate, even if the earlier ones were also incomplete. The book has an immense and devastating (讽刺的) theme, but this theme is illustrated, as it should be, by means of an observed reality.
I am not suggesting that Catch-22 is a realistic account of life in the war-time Air Force of America or any other country. The method of satire is to inflate (放大) reality so that all its partially concealed blemishes (缺点) turn into monstrous and apparent deformations. The effect of good satire is to make us laugh with horror. And this means that social and personal evils which are being satirized must have been there, and must be felt by the reader to be there even while he is laughing at the results of the satirist"s inflating imagination.The passage seems to be from ______.

A．a review of a film
B．a book about the US Air Force
C．an essay on satire
D．a review of a book

单项选择题

【案例分析题】America is a country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly-up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.
It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercises. Growing publicity (宣传) for races held in American cities helped fuel a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally rewarding and sometimes safer forms of exercise, such as walking and swimming, running remain the most popular forms of exercise.
As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously (强有力地) enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times of more a week will produce considerable improvements in physical health in about three months.According to the passage, what was the percentage of American adults doing regular physical exercises two years ago

A．About 70%.
B．Nearly 60%.
C．Almost 50%.
D．More than 12%.

单项选择题

【案例分析题】
In only two decades Asian Americans have become the fastest growing the U.S. minority. As their children began moving up through the nation"s schools, it became clear that a new class of academic achievers was emerging. Their achievements are reflected in the nation"s best universities, where mathematics, science and engineering departments have taken on a decidedly Asian character. This special liking for mathematics and science is partly explained by the fact that Asian-American students who began their educations abroad arrived in the U.S with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by the promise of a good job after college. Asians feel they will be judged more objectively. And the return on the investment in education is more immediate in something like engineering than with an arts degree.
Most Asian-American students owe their success to the influence of parents who are determined that their children take full advantage of what the American educational system has to offer. An effective measure of parental attention is homework. Asian parents spend more time with their children than American parents do, and it helps. Many researchers also believe there is something in Asian culture that breeds success, such as ideals that stress family values and emphasize education.
Both explanations for academic success worry Asian Americans because of fears that they feed a typical racial image. Many can remember when Chinese, Japanese and Filipino immigrants were the victims of social isolation. Indeed, it was not until 1952 that laws were laid down giving all Asian immigrants the right to citizenship.
What are the major factors that determine the success of Asian Americans（）

A．A solid foundation in basic mathematics and Asian culture
B．Hard work and intelligence
C．Hard help and a limited knowledge of English
D．Asian culture and the American educational system

单项选择题

【案例分析题】"A roiling stone gathers no moss (苔藓)," but there is one living animal that does gather moss, the three-toed sloth (树懒) of South America. This slowest-moving member of the animal kingdom is so inactive that moss actually gathers on its body and turns it green—strange as it seems!
Most of the sloth"s life is spent motionless, hanging upside down from a limb. And that is the way its hair grows. Long and coarse, the strands (串) from receptacles (花托) for the damp jungle algae (水藻) that turn the brown fur a mossy green. Actually this moss helps the animal survive because it serves as a perfect camouflage against the leaf trees and hides the sloth from the jungle"s swift-moving hunters. The sloth would have little chance of survival on the ground. With long, curved claws hooked over the limb of a leafy tree, it spends the long hot hours during the day drowsing and eating. Inch by inch, it strips the leafy limbs bare and crawls slowly down the trunk to find a new dining spot, but only at night.
In addition to looking rather like a vegetable, the sloth is a strict vegetarian. Running out of its favorite leaf is about the only thing that will make a sloth move. Then its appetite may even force the animal into swimming a stream to reach a juicy succulent (多汁的植物). It will also force it into fighting to keep the tree all to itself. The sloth is lazy and prefers to be alone, but it will tolerate its own relatives!The author"s purpose in writing the passage is （）

A．to help children to gain a better understanding of animal life
B．to prove that the saying "a rolling stone gathers no moss" is wrong
C．to introduce a particular animal to the common reader
D．to discuss with professionals the laziness of animals

单项选择题

【案例分析题】Space is a dangerous place, not only because of meteors but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation. But their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in space. The unit of radiation is called "rein". Scientists have reason to think that a man can put up with far more radiation than 0.1 ream without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage——a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed (畸形的) children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and, during the outward and return journeys, the Apollo crew accumulated a large amount of reams. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.We know from the passage that （）

A．exposure to even tiny amounts of radiation is fatal
B．the effect of exposure to radiation is slow in coming
C．radiation is avoidable in space exploration
D．astronauts in spacesuits needn"t worry about radiation damage

单项选择题

【案例分析题】When I began reading Catch-22, I thought it was a farcical satire on life in the United States Army Air Force. Later I believed that Mr. Heller"s target was modern war and all those who are responsible for waging it. Still later it seemed that he was attacking social organization and anyone who derives power from it. But by the end of the book it had become plain to me that it is——no other phrase will do——the human condition itself which is the object of Mr. Heller"s outraged fury and disgust.
A reviewer must always keep an anxious eye on the state of his currency . If he announces too many masterpieces, he risks inflation( though it is sometimes forgotten by some of us that the cowardice of perpetual crabbing (挑剔) receives its own kind of punishment). It does not seem many weeks since I was proclaiming that Malcolm Lowry"s Under the Volcano is one of the great English novels of the century; and not long before that I was urging that attention should be paid to the magnificent and neglected talent of William Gerhardi.
But at the risk of inflation I cannot help writing that Catch-22 is the greatest satirical work in English since Erewhon. For the fact is that all my successive interpretations of this book now seem to have been accurate, even if the earlier ones were also incomplete. The book has an immense and devastating (讽刺的) theme, but this theme is illustrated, as it should be, by means of an observed reality.
I am not suggesting that Catch-22 is a realistic account of life in the war-time Air Force of America or any other country. The method of satire is to inflate (放大) reality so that all its partially concealed blemishes (缺点) turn into monstrous and apparent deformations. The effect of good satire is to make us laugh with horror. And this means that social and personal evils which are being satirized must have been there, and must be felt by the reader to be there even while he is laughing at the results of the satirist"s inflating imagination.The writer suggests that Catch-22 is （）

A．a very great English novel
B．an accurate portrayal of life in wartime
C．an excellent piece of satire
D．the work of a neglected author

单项选择题

【案例分析题】America is a country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly-up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.
It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercises. Growing publicity (宣传) for races held in American cities helped fuel a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally rewarding and sometimes safer forms of exercise, such as walking and swimming, running remain the most popular forms of exercise.
As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously (强有力地) enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times of more a week will produce considerable improvements in physical health in about three months.A growing interest in sports developed utter （）

A．research showed their health benefits
B．people got the message from magazine covers and postage stamps
C．scientific evidence of health benefits was shown on TV ads
D．an increasing number of races were held in American cities

单项选择题

【案例分析题】
In only two decades Asian Americans have become the fastest growing the U.S. minority. As their children began moving up through the nation"s schools, it became clear that a new class of academic achievers was emerging. Their achievements are reflected in the nation"s best universities, where mathematics, science and engineering departments have taken on a decidedly Asian character. This special liking for mathematics and science is partly explained by the fact that Asian-American students who began their educations abroad arrived in the U.S with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by the promise of a good job after college. Asians feel they will be judged more objectively. And the return on the investment in education is more immediate in something like engineering than with an arts degree.
Most Asian-American students owe their success to the influence of parents who are determined that their children take full advantage of what the American educational system has to offer. An effective measure of parental attention is homework. Asian parents spend more time with their children than American parents do, and it helps. Many researchers also believe there is something in Asian culture that breeds success, such as ideals that stress family values and emphasize education.
Both explanations for academic success worry Asian Americans because of fears that they feed a typical racial image. Many can remember when Chinese, Japanese and Filipino immigrants were the victims of social isolation. Indeed, it was not until 1952 that laws were laid down giving all Asian immigrants the right to citizenship.
Few Asian-American students major in human sciences mainly because （）

A．their English is not good enough
B．they are afraid they might meet with unfair judgment in these areas
C．there is a wide difference between Asian and Western cultures
D．they know little about American culture and society

单项选择题

【案例分析题】"A roiling stone gathers no moss (苔藓)," but there is one living animal that does gather moss, the three-toed sloth (树懒) of South America. This slowest-moving member of the animal kingdom is so inactive that moss actually gathers on its body and turns it green—strange as it seems!
Most of the sloth"s life is spent motionless, hanging upside down from a limb. And that is the way its hair grows. Long and coarse, the strands (串) from receptacles (花托) for the damp jungle algae (水藻) that turn the brown fur a mossy green. Actually this moss helps the animal survive because it serves as a perfect camouflage against the leaf trees and hides the sloth from the jungle"s swift-moving hunters. The sloth would have little chance of survival on the ground. With long, curved claws hooked over the limb of a leafy tree, it spends the long hot hours during the day drowsing and eating. Inch by inch, it strips the leafy limbs bare and crawls slowly down the trunk to find a new dining spot, but only at night.
In addition to looking rather like a vegetable, the sloth is a strict vegetarian. Running out of its favorite leaf is about the only thing that will make a sloth move. Then its appetite may even force the animal into swimming a stream to reach a juicy succulent (多汁的植物). It will also force it into fighting to keep the tree all to itself. The sloth is lazy and prefers to be alone, but it will tolerate its own relatives!Which of the following is NOT true about the sloth（）

A．The sloth does not eat any meat.
B．For most of its time, the sloth remains motionless on the ground.
C．To some extent, the sloth is protected by the moss growing on its body.
D．The sloth has a brown fur of its own.

单项选择题

【【案例分析题】】Space is a dangerous place, not only because of meteors but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation. But their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in space. The unit of radiation is called "rein". Scientists have reason to think that a man can put up with far more radiation than 0.1 ream without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage——a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed (畸形的) children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and, during the outward and return journeys, the Apollo crew accumulated a large amount of reams. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.The harm radiation has done to the Apollo crew members （）

A．is insignificant
B．is enormous
C．seems overestimated
D．remains unknown

单项选择题

【案例分析题】When I began reading Catch-22, I thought it was a farcical satire on life in the United States Army Air Force. Later I believed that Mr. Heller"s target was modern war and all those who are responsible for waging it. Still later it seemed that he was attacking social organization and anyone who derives power from it. But by the end of the book it had become plain to me that it is——no other phrase will do——the human condition itself which is the object of Mr. Heller"s outraged fury and disgust.
A reviewer must always keep an anxious eye on the state of his currency . If he announces too many masterpieces, he risks inflation( though it is sometimes forgotten by some of us that the cowardice of perpetual crabbing (挑剔) receives its own kind of punishment). It does not seem many weeks since I was proclaiming that Malcolm Lowry"s Under the Volcano is one of the great English novels of the century; and not long before that I was urging that attention should be paid to the magnificent and neglected talent of William Gerhardi.
But at the risk of inflation I cannot help writing that Catch-22 is the greatest satirical work in English since Erewhon. For the fact is that all my successive interpretations of this book now seem to have been accurate, even if the earlier ones were also incomplete. The book has an immense and devastating (讽刺的) theme, but this theme is illustrated, as it should be, by means of an observed reality.
I am not suggesting that Catch-22 is a realistic account of life in the war-time Air Force of America or any other country. The method of satire is to inflate (放大) reality so that all its partially concealed blemishes (缺点) turn into monstrous and apparent deformations. The effect of good satire is to make us laugh with horror. And this means that social and personal evils which are being satirized must have been there, and must be felt by the reader to be there even while he is laughing at the results of the satirist"s inflating imagination.The underlined part "keep an anxious eye on the state of his currency" means （）

A．take care not to be over-critical in his writing
B．watch carefully to see that nobody else takes his job
C．be careful to ensure that his comments retain their value
D．be sure that his salary keeps pace with inflation

单项选择题

【案例分析题】
In only two decades Asian Americans have become the fastest growing the U.S. minority. As their children began moving up through the nation"s schools, it became clear that a new class of academic achievers was emerging. Their achievements are reflected in the nation"s best universities, where mathematics, science and engineering departments have taken on a decidedly Asian character. This special liking for mathematics and science is partly explained by the fact that Asian-American students who began their educations abroad arrived in the U.S with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by the promise of a good job after college. Asians feel they will be judged more objectively. And the return on the investment in education is more immediate in something like engineering than with an arts degree.
Most Asian-American students owe their success to the influence of parents who are determined that their children take full advantage of what the American educational system has to offer. An effective measure of parental attention is homework. Asian parents spend more time with their children than American parents do, and it helps. Many researchers also believe there is something in Asian culture that breeds success, such as ideals that stress family values and emphasize education.
Both explanations for academic success worry Asian Americans because of fears that they feed a typical racial image. Many can remember when Chinese, Japanese and Filipino immigrants were the victims of social isolation. Indeed, it was not until 1952 that laws were laid down giving all Asian immigrants the right to citizenship.
Why do the two "explanations" (Line 1, Para. 3) worry Asian Americans（）

A．They are afraid that they would again be isolated from American society in general.
B．People would think that Asian students rely on their parents for success.
C．Asian Americans would be a threat to other minorities.
D．American academic achievements have taken on too strong an Asian character.

单项选择题

【案例分析题】America is a country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly-up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.
It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercises. Growing publicity (宣传) for races held in American cities helped fuel a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally rewarding and sometimes safer forms of exercise, such as walking and swimming, running remain the most popular forms of exercise.
As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously (强有力地) enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times of more a week will produce considerable improvements in physical health in about three months.Which of the following is closest in meaning to the phrase "leveled off" (Para. 2, Line 5)（）

A．become very popular
B．stopped being popular
C．reached its lowest level in popularity
D．stopped increasing in popularity

单项选择题

【案例分析题】"A roiling stone gathers no moss (苔藓)," but there is one living animal that does gather moss, the three-toed sloth (树懒) of South America. This slowest-moving member of the animal kingdom is so inactive that moss actually gathers on its body and turns it green—strange as it seems!
Most of the sloth"s life is spent motionless, hanging upside down from a limb. And that is the way its hair grows. Long and coarse, the strands (串) from receptacles (花托) for the damp jungle algae (水藻) that turn the brown fur a mossy green. Actually this moss helps the animal survive because it serves as a perfect camouflage against the leaf trees and hides the sloth from the jungle"s swift-moving hunters. The sloth would have little chance of survival on the ground. With long, curved claws hooked over the limb of a leafy tree, it spends the long hot hours during the day drowsing and eating. Inch by inch, it strips the leafy limbs bare and crawls slowly down the trunk to find a new dining spot, but only at night.
In addition to looking rather like a vegetable, the sloth is a strict vegetarian. Running out of its favorite leaf is about the only thing that will make a sloth move. Then its appetite may even force the animal into swimming a stream to reach a juicy succulent (多汁的植物). It will also force it into fighting to keep the tree all to itself. The sloth is lazy and prefers to be alone, but it will tolerate its own relatives!According to the passage, the sloth will move about when （）

A．it senses a coming danger
B．it is forced to swim on a hot day
C．it is short of its favorite food
D．it wants to keep itself to itself

单项选择题

【案例分析题】Space is a dangerous place, not only because of meteors but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation. But their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in space. The unit of radiation is called "rein". Scientists have reason to think that a man can put up with far more radiation than 0.1 ream without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage——a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed (畸形的) children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and, during the outward and return journeys, the Apollo crew accumulated a large amount of reams. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.It can be inferred from the passage that （）

A．the Apollo mission was very successful
B．protection from space radiation is no easy job
C．astronauts will have deformed children of grand children
D．radiation is not a threat to well protection space explorers

单项选择题

【案例分析题】When I began reading Catch-22, I thought it was a farcical satire on life in the United States Army Air Force. Later I believed that Mr. Heller"s target was modern war and all those who are responsible for waging it. Still later it seemed that he was attacking social organization and anyone who derives power from it. But by the end of the book it had become plain to me that it is——no other phrase will do——the human condition itself which is the object of Mr. Heller"s outraged fury and disgust.
A reviewer must always keep an anxious eye on the state of his currency . If he announces too many masterpieces, he risks inflation( though it is sometimes forgotten by some of us that the cowardice of perpetual crabbing (挑剔) receives its own kind of punishment). It does not seem many weeks since I was proclaiming that Malcolm Lowry"s Under the Volcano is one of the great English novels of the century; and not long before that I was urging that attention should be paid to the magnificent and neglected talent of William Gerhardi.
But at the risk of inflation I cannot help writing that Catch-22 is the greatest satirical work in English since Erewhon. For the fact is that all my successive interpretations of this book now seem to have been accurate, even if the earlier ones were also incomplete. The book has an immense and devastating (讽刺的) theme, but this theme is illustrated, as it should be, by means of an observed reality.
I am not suggesting that Catch-22 is a realistic account of life in the war-time Air Force of America or any other country. The method of satire is to inflate (放大) reality so that all its partially concealed blemishes (缺点) turn into monstrous and apparent deformations. The effect of good satire is to make us laugh with horror. And this means that social and personal evils which are being satirized must have been there, and must be felt by the reader to be there even while he is laughing at the results of the satirist"s inflating imagination.Why does the writer say "at the risk of inflation"（）

A．Because he feels that he might be exaggerating
B．Because he has recently praised more works than usual
C．Because he finds it hard to be objective
D．Because he feels he may not praise the work sufficiently

单项选择题

【案例分析题】America is a country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly-up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.
It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercises. Growing publicity (宣传) for races held in American cities helped fuel a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally rewarding and sometimes safer forms of exercise, such as walking and swimming, running remain the most popular forms of exercise.
As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously (强有力地) enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times of more a week will produce considerable improvements in physical health in about three months.It can be learnt from the passage that the health benefits of exercise （）

A．are yet to be proved
B．are to be further studied
C．are supported by scientific evidence
D．are self-evident

单项选择题

【案例分析题】
In only two decades Asian Americans have become the fastest growing the U.S. minority. As their children began moving up through the nation"s schools, it became clear that a new class of academic achievers was emerging. Their achievements are reflected in the nation"s best universities, where mathematics, science and engineering departments have taken on a decidedly Asian character. This special liking for mathematics and science is partly explained by the fact that Asian-American students who began their educations abroad arrived in the U.S with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by the promise of a good job after college. Asians feel they will be judged more objectively. And the return on the investment in education is more immediate in something like engineering than with an arts degree.
Most Asian-American students owe their success to the influence of parents who are determined that their children take full advantage of what the American educational system has to offer. An effective measure of parental attention is homework. Asian parents spend more time with their children than American parents do, and it helps. Many researchers also believe there is something in Asian culture that breeds success, such as ideals that stress family values and emphasize education.
Both explanations for academic success worry Asian Americans because of fears that they feed a typical racial image. Many can remember when Chinese, Japanese and Filipino immigrants were the victims of social isolation. Indeed, it was not until 1952 that laws were laid down giving all Asian immigrants the right to citizenship.
The author"s tone in this passage is （）

A．sympathetic
B．doubtful
C．critical
D．objective

单项选择题

【案例分析题】"A roiling stone gathers no moss (苔藓)," but there is one living animal that does gather moss, the three-toed sloth (树懒) of South America. This slowest-moving member of the animal kingdom is so inactive that moss actually gathers on its body and turns it green—strange as it seems!
Most of the sloth"s life is spent motionless, hanging upside down from a limb. And that is the way its hair grows. Long and coarse, the strands (串) from receptacles (花托) for the damp jungle algae (水藻) that turn the brown fur a mossy green. Actually this moss helps the animal survive because it serves as a perfect camouflage against the leaf trees and hides the sloth from the jungle"s swift-moving hunters. The sloth would have little chance of survival on the ground. With long, curved claws hooked over the limb of a leafy tree, it spends the long hot hours during the day drowsing and eating. Inch by inch, it strips the leafy limbs bare and crawls slowly down the trunk to find a new dining spot, but only at night.
In addition to looking rather like a vegetable, the sloth is a strict vegetarian. Running out of its favorite leaf is about the only thing that will make a sloth move. Then its appetite may even force the animal into swimming a stream to reach a juicy succulent (多汁的植物). It will also force it into fighting to keep the tree all to itself. The sloth is lazy and prefers to be alone, but it will tolerate its own relatives!Which of the following is NOT mentioned or implied by the author（）

A．The sloth has only three toes.
B．The sloth lives in the damp jungle of South America.
C．The sloth usually tries to find a new spot for food at night.
D．The sloth will never fight with other animals.

单项选择题

【案例分析题】Space is a dangerous place, not only because of meteors but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable. Various kinds of rays come through the air from outer space, but enormous quantities of radiation from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation. But their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in space. The unit of radiation is called "rein". Scientists have reason to think that a man can put up with far more radiation than 0.1 ream without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage——a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed (畸形的) children or even grandchildren. Missions of the Apollo flights have had to cross belts of high radiation and, during the outward and return journeys, the Apollo crew accumulated a large amount of reams. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.The best title for this passage would be （）

A．The Atmosphere and Our Environment
B．Research on Radiation
C．Effects of Space Radiation
D．Importance of Protection Against Radiation

单项选择题

【案例分析题】When I began reading Catch-22, I thought it was a farcical satire on life in the United States Army Air Force. Later I believed that Mr. Heller"s target was modern war and all those who are responsible for waging it. Still later it seemed that he was attacking social organization and anyone who derives power from it. But by the end of the book it had become plain to me that it is——no other phrase will do——the human condition itself which is the object of Mr. Heller"s outraged fury and disgust.
A reviewer must always keep an anxious eye on the state of his currency . If he announces too many masterpieces, he risks inflation( though it is sometimes forgotten by some of us that the cowardice of perpetual crabbing (挑剔) receives its own kind of punishment). It does not seem many weeks since I was proclaiming that Malcolm Lowry"s Under the Volcano is one of the great English novels of the century; and not long before that I was urging that attention should be paid to the magnificent and neglected talent of William Gerhardi.
But at the risk of inflation I cannot help writing that Catch-22 is the greatest satirical work in English since Erewhon. For the fact is that all my successive interpretations of this book now seem to have been accurate, even if the earlier ones were also incomplete. The book has an immense and devastating (讽刺的) theme, but this theme is illustrated, as it should be, by means of an observed reality.
I am not suggesting that Catch-22 is a realistic account of life in the war-time Air Force of America or any other country. The method of satire is to inflate (放大) reality so that all its partially concealed blemishes (缺点) turn into monstrous and apparent deformations. The effect of good satire is to make us laugh with horror. And this means that social and personal evils which are being satirized must have been there, and must be felt by the reader to be there even while he is laughing at the results of the satirist"s inflating imagination.The writer suggests that good satire （）

A．focuses on the horrors at the human condition
B．has little or no connection with reality
C．distorts reality so that it becomes unrecognizable
D．must be seen to be rooted in reality

单项选择题

【案例分析题】America is a country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly-up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.
It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercises. Growing publicity (宣传) for races held in American cities helped fuel a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally rewarding and sometimes safer forms of exercise, such as walking and swimming, running remain the most popular forms of exercise.
As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously (强有力地) enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times of more a week will produce considerable improvements in physical health in about three months.Which of the following would be the best title for the passage（）

A．Different Forms of Exercise
B．Exercise—The Road to Health
C．Scientific Evidence of Health Benefits
D．Running—A Popular Form of Sport