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Do we have to wear these name tags?
A: lists
B: forms
C: codes
D: labels
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共用题干
Exercise
Whether or not exercise adds___1___the length of life,it is common experience that a certain___2___of regular exercise improves the health and contributes a feeling of wellbeing.
Furthermore,exercise___3___involves play and recreation,and relieves nervous tension and mental fatigue in so doing,is not only pleasant but beneficial. How much and what kind of exercise one should___4___merits careful consideration. The growing child and the normal young man and young woman thrill with the exhilaration of strenuous sports.They fatigue to the___5___of exhaustion but recover promptly with a period of rest. But not so with___6___of middle age and beyond. For them moderation is___7___vital importance. Just how much exercise a person of a given age can safely take is a question___8___to answer. Individual variability is___9___ great to permit of generalization.
A game of tennis may be perfectly safe for one person of forty but folly for another. The safe limit for exercise___10___ on the condition of the heart,the condition of the muscles,the type of exercise,and the regularity with which it is taken.Two general suggestions,however,will___11___ as sound advice for anyone.The first is that the condition of the heart and general health should be___12___ periodically by careful, thorough physical examinations. The___13___is that exercise should be kept below the point of physical exhaustion.
What type of exercise one should___14___depends upon one's physical condition. Young people can safely enjoy vigorous competitive sports,but most older persons do better to limit themselves to less strenuous activities. Walking,swimming,skating are among the sports that one can enjoy and safely participate___15___throughout life. Regularity is important if one is to get the most enjoyment and benefit out of exercise.
8._________
A: easy
B: hard
C: impossible
D: unnecessary
Exercise
Whether or not exercise adds___1___the length of life,it is common experience that a certain___2___of regular exercise improves the health and contributes a feeling of wellbeing.
Furthermore,exercise___3___involves play and recreation,and relieves nervous tension and mental fatigue in so doing,is not only pleasant but beneficial. How much and what kind of exercise one should___4___merits careful consideration. The growing child and the normal young man and young woman thrill with the exhilaration of strenuous sports.They fatigue to the___5___of exhaustion but recover promptly with a period of rest. But not so with___6___of middle age and beyond. For them moderation is___7___vital importance. Just how much exercise a person of a given age can safely take is a question___8___to answer. Individual variability is___9___ great to permit of generalization.
A game of tennis may be perfectly safe for one person of forty but folly for another. The safe limit for exercise___10___ on the condition of the heart,the condition of the muscles,the type of exercise,and the regularity with which it is taken.Two general suggestions,however,will___11___ as sound advice for anyone.The first is that the condition of the heart and general health should be___12___ periodically by careful, thorough physical examinations. The___13___is that exercise should be kept below the point of physical exhaustion.
What type of exercise one should___14___depends upon one's physical condition. Young people can safely enjoy vigorous competitive sports,but most older persons do better to limit themselves to less strenuous activities. Walking,swimming,skating are among the sports that one can enjoy and safely participate___15___throughout life. Regularity is important if one is to get the most enjoyment and benefit out of exercise.
8._________
A: easy
B: hard
C: impossible
D: unnecessary
共用题干
Chimpanzees
1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habitat（栖息地）destruction continues, then within 20 years, there will be no chimpanzees living in the wild. But this is more than an environmental or moral tragedy（悲剧）.Chimpan-zee extinction may also have profound implications（含意）for the survival of their distant relatives一human beings.
2 In 1975 the biologist Marie-Claire King and Allan Wilson discovered that the human and chimpanzee genomes（基因组）match by ovet 98%. Compare this to the mouse, used as model for human disease in lab tests,which shares only 60% of its DNA with us.In fact, chimpanzees are far more similar to humans than they are to any other species of monkey. As well as resembling us genetically,chimps are highly intelligent and able to use tools.These facts alone should be enough to make protection of chimps an urgent priority（优先）.But there is another,more selfish reason to preserve the chimp.
3 The chimpanzees' trump card（王牌）comes in the field of medical research. Chimpanzees are so similar to humans that veterinarians（兽医）often refer to human medical text-books when treating them. Yet chimpanzees do show differences in several key areas.In parti-cular,chimps are much more resistant to a number of major diseases.It is this ability that is so interesting.
4 For example,chimps seem to show a much higher resistance than humans to HIV,the virus that causes AIDS. Indeed,their use as experimental animals in AIDS research has de-dlined because they are so resistant.
5 By sequencing the chimp genome and pinpointing（找到）the place where the chimpanzee DNA sequence differs from that of humans,scientists hope to be able to discover which part of the genetic code gives chimps their increased resistance to some diseases. This,they hope,will allow them to develop new and more effective treatments for the human forms of these diseases. Such treatments could include the production of new drugs or even the alteration（改变）of the human genetic sequence. The recently completed human genome sequencing project has shown that such an effort is now well within our reach.
Scientists suspect that genes play a significant role in protecting chimps from getting______.
A: some human disease treatments
B: some diseases
C: human survival
D: human genomes
E: key areas
F: healthier lifestyle
Chimpanzees
1 Chimpanzees（黑猩猩）will soon be extinct（灭绝）.If the present rate of hunting and habitat（栖息地）destruction continues, then within 20 years, there will be no chimpanzees living in the wild. But this is more than an environmental or moral tragedy（悲剧）.Chimpan-zee extinction may also have profound implications（含意）for the survival of their distant relatives一human beings.
2 In 1975 the biologist Marie-Claire King and Allan Wilson discovered that the human and chimpanzee genomes（基因组）match by ovet 98%. Compare this to the mouse, used as model for human disease in lab tests,which shares only 60% of its DNA with us.In fact, chimpanzees are far more similar to humans than they are to any other species of monkey. As well as resembling us genetically,chimps are highly intelligent and able to use tools.These facts alone should be enough to make protection of chimps an urgent priority（优先）.But there is another,more selfish reason to preserve the chimp.
3 The chimpanzees' trump card（王牌）comes in the field of medical research. Chimpanzees are so similar to humans that veterinarians（兽医）often refer to human medical text-books when treating them. Yet chimpanzees do show differences in several key areas.In parti-cular,chimps are much more resistant to a number of major diseases.It is this ability that is so interesting.
4 For example,chimps seem to show a much higher resistance than humans to HIV,the virus that causes AIDS. Indeed,their use as experimental animals in AIDS research has de-dlined because they are so resistant.
5 By sequencing the chimp genome and pinpointing（找到）the place where the chimpanzee DNA sequence differs from that of humans,scientists hope to be able to discover which part of the genetic code gives chimps their increased resistance to some diseases. This,they hope,will allow them to develop new and more effective treatments for the human forms of these diseases. Such treatments could include the production of new drugs or even the alteration（改变）of the human genetic sequence. The recently completed human genome sequencing project has shown that such an effort is now well within our reach.
Scientists suspect that genes play a significant role in protecting chimps from getting______.
A: some human disease treatments
B: some diseases
C: human survival
D: human genomes
E: key areas
F: healthier lifestyle
共用题干
第三篇
Only special plants can survive in the terrible climate of a desert,for these are regions where the annual range of the soil temperature can be over 75℃.Furthermore,during the summer there are few clouds in the sky to protect plants from the sun's ray.Another problem is the fact that there are frequently strong winds which drive small-sharp particles of sand into the plants,tearing and damaging them.The most difficult problem for all forms of plant life,however,is the fact that the entire annual rainfall occurs during a few days or weeks in spring.
Grasses and flowers in desert survive from one year to the next by existing through the long, hot,dry season in the form of seeds.These seeds remain inactive unless the right amount of rain falls.If no rain falls,or if insufficient rain falls,they wait until the next year,or even still the next.
Another factor that helps these plants to survive is the fact that their life cycles are short.By the time that the water from the spring rains disappears—ust a few weeks after it falls一such plants no longer need any.
The perennials（多年生植物）have special features which enable them to survive as plants for several years. Thus,nearly all desert perennials have extensive root systems below ground and a small shoot system above ground.The large root network enables the plant to absorb as much water as possible in a short time.The small shoot system,on the other hand,considerably limits water loss by evaporation（蒸发）.
Another feature of many desert perennials is that after the rainy season they lose their leaves in preparation for the long,dry season,just as trees in wetter climates lose theirs in preparation for the winter. This reduces their water loss by evaporation during the dry season.Then,in the next rainy season,they come fully alive once more,and grow new branches,leaves and flowers,just as the grasses and flowers in desert do.
We can learn from the passage that the shoot system of the perennials_________.
A:can help the perennials absorb less of the sun's ray
B:decides the appearance of the perennials in desert
C:limits the function of the perennials' branches
D:may prevent the perennials from losing much water
第三篇
Only special plants can survive in the terrible climate of a desert,for these are regions where the annual range of the soil temperature can be over 75℃.Furthermore,during the summer there are few clouds in the sky to protect plants from the sun's ray.Another problem is the fact that there are frequently strong winds which drive small-sharp particles of sand into the plants,tearing and damaging them.The most difficult problem for all forms of plant life,however,is the fact that the entire annual rainfall occurs during a few days or weeks in spring.
Grasses and flowers in desert survive from one year to the next by existing through the long, hot,dry season in the form of seeds.These seeds remain inactive unless the right amount of rain falls.If no rain falls,or if insufficient rain falls,they wait until the next year,or even still the next.
Another factor that helps these plants to survive is the fact that their life cycles are short.By the time that the water from the spring rains disappears—ust a few weeks after it falls一such plants no longer need any.
The perennials（多年生植物）have special features which enable them to survive as plants for several years. Thus,nearly all desert perennials have extensive root systems below ground and a small shoot system above ground.The large root network enables the plant to absorb as much water as possible in a short time.The small shoot system,on the other hand,considerably limits water loss by evaporation（蒸发）.
Another feature of many desert perennials is that after the rainy season they lose their leaves in preparation for the long,dry season,just as trees in wetter climates lose theirs in preparation for the winter. This reduces their water loss by evaporation during the dry season.Then,in the next rainy season,they come fully alive once more,and grow new branches,leaves and flowers,just as the grasses and flowers in desert do.
We can learn from the passage that the shoot system of the perennials_________.
A:can help the perennials absorb less of the sun's ray
B:decides the appearance of the perennials in desert
C:limits the function of the perennials' branches
D:may prevent the perennials from losing much water
共用题干
Exercise
Whether or not exercise adds___1___the length of life,it is common experience that a certain___2___of regular exercise improves the health and contributes a feeling of wellbeing.
Furthermore,exercise___3___involves play and recreation,and relieves nervous tension and mental fatigue in so doing,is not only pleasant but beneficial. How much and what kind of exercise one should___4___merits careful consideration. The growing child and the normal young man and young woman thrill with the exhilaration of strenuous sports.They fatigue to the___5___of exhaustion but recover promptly with a period of rest. But not so with___6___of middle age and beyond. For them moderation is___7___vital importance. Just how much exercise a person of a given age can safely take is a question___8___to answer. Individual variability is___9___ great to permit of generalization.
A game of tennis may be perfectly safe for one person of forty but folly for another. The safe limit for exercise___10___ on the condition of the heart,the condition of the muscles,the type of exercise,and the regularity with which it is taken.Two general suggestions,however,will___11___ as sound advice for anyone.The first is that the condition of the heart and general health should be___12___ periodically by careful, thorough physical examinations. The___13___is that exercise should be kept below the point of physical exhaustion.
What type of exercise one should___14___depends upon one's physical condition. Young people can safely enjoy vigorous competitive sports,but most older persons do better to limit themselves to less strenuous activities. Walking,swimming,skating are among the sports that one can enjoy and safely participate___15___throughout life. Regularity is important if one is to get the most enjoyment and benefit out of exercise.
15._________
A: with
B: from
C: in
D: on
Exercise
Whether or not exercise adds___1___the length of life,it is common experience that a certain___2___of regular exercise improves the health and contributes a feeling of wellbeing.
Furthermore,exercise___3___involves play and recreation,and relieves nervous tension and mental fatigue in so doing,is not only pleasant but beneficial. How much and what kind of exercise one should___4___merits careful consideration. The growing child and the normal young man and young woman thrill with the exhilaration of strenuous sports.They fatigue to the___5___of exhaustion but recover promptly with a period of rest. But not so with___6___of middle age and beyond. For them moderation is___7___vital importance. Just how much exercise a person of a given age can safely take is a question___8___to answer. Individual variability is___9___ great to permit of generalization.
A game of tennis may be perfectly safe for one person of forty but folly for another. The safe limit for exercise___10___ on the condition of the heart,the condition of the muscles,the type of exercise,and the regularity with which it is taken.Two general suggestions,however,will___11___ as sound advice for anyone.The first is that the condition of the heart and general health should be___12___ periodically by careful, thorough physical examinations. The___13___is that exercise should be kept below the point of physical exhaustion.
What type of exercise one should___14___depends upon one's physical condition. Young people can safely enjoy vigorous competitive sports,but most older persons do better to limit themselves to less strenuous activities. Walking,swimming,skating are among the sports that one can enjoy and safely participate___15___throughout life. Regularity is important if one is to get the most enjoyment and benefit out of exercise.
15._________
A: with
B: from
C: in
D: on
共用题干
1. Do you know a child who survived leukemia（白血病）?Do you have a mother , sister or aunt whose breast cancer was found early thanks to a mammogram（乳腺X光照片）?Do you have a friend or coworker who quit smoking to reduce their risk of lung cancer? Each of these individuals benefited from the American Cancer Society's research program.
2.Each day scientists supported by the American Cancer Society work to find breakthroughs that will take US one step closer to a cure.The American Cancer Society has long recognized that research holds the ultimate answers to the prevention,diagnosis and treatment of cancer.
3.As the largest source of nonprofit cancer research funds in the United States,the American Cancer Society devotes over $100 million each year to research.Since 1946,they've invested more than $2. 4 billion in research. The investment has paid rich dividends（回报、效益）.In 1946,only one in four cancer patients was alive five years after diagnosis;today 60 percent live longer than five years.
4.Investigators and health professionals in universities,research institutes and hospitals throughout the country receive grants from the American Cancer Society.Of the more than 1,300 new applications received each year,only 11 percent can be funded.If the American Cancer Society had more money available for research funding,nearly 200 more applications considered outstanding could be funded each year.
5.You can help fund more of these applications by participating in the American Cancer Society Relay（接力）for Life,a team event to fight cancer. More funding means more cancer breakthroughs and more lives being saved.To learn more,call Donna Hood,chair with the Neosho Relay for Life of the American Cancer Society at 451-4880.
The American Cancer Society's research program has benefited________.
A:lack of funding
B:many cancer patients
C:more lives being saved
D:more than five years
E:the ultimate answers
F: more funding
1. Do you know a child who survived leukemia（白血病）?Do you have a mother , sister or aunt whose breast cancer was found early thanks to a mammogram（乳腺X光照片）?Do you have a friend or coworker who quit smoking to reduce their risk of lung cancer? Each of these individuals benefited from the American Cancer Society's research program.
2.Each day scientists supported by the American Cancer Society work to find breakthroughs that will take US one step closer to a cure.The American Cancer Society has long recognized that research holds the ultimate answers to the prevention,diagnosis and treatment of cancer.
3.As the largest source of nonprofit cancer research funds in the United States,the American Cancer Society devotes over $100 million each year to research.Since 1946,they've invested more than $2. 4 billion in research. The investment has paid rich dividends（回报、效益）.In 1946,only one in four cancer patients was alive five years after diagnosis;today 60 percent live longer than five years.
4.Investigators and health professionals in universities,research institutes and hospitals throughout the country receive grants from the American Cancer Society.Of the more than 1,300 new applications received each year,only 11 percent can be funded.If the American Cancer Society had more money available for research funding,nearly 200 more applications considered outstanding could be funded each year.
5.You can help fund more of these applications by participating in the American Cancer Society Relay（接力）for Life,a team event to fight cancer. More funding means more cancer breakthroughs and more lives being saved.To learn more,call Donna Hood,chair with the Neosho Relay for Life of the American Cancer Society at 451-4880.
The American Cancer Society's research program has benefited________.
A:lack of funding
B:many cancer patients
C:more lives being saved
D:more than five years
E:the ultimate answers
F: more funding
