6月大学英语六级必做的阅读理解练习题

bill
文档
2024-06-07
104热度
0评论

下面小编给大家整理的6月大学英语六级必做的阅读理解练习题，本文共3篇，希望大家喜欢!

6月大学英语六级必做的阅读理解练习题

We sometimes think humans are uniquely vulnerable to anxiety, but stress seems to affect the immune defenses of lower animals too. In one experiment, for example, behavioral immunologist (免疫学家) Mark Laudenslager, at the University of Denver, gave mild electric shocks to 24 rats. Half the animals could switch off the current by turning a wheel in their enclosure, while the other half could mot. The rats in the two groups were paired so that each time one rat turned the wheel it protected both itself and its helpless partner from the shock. Laudenslager found that the immune response was depressed below normal in the helpless rats but not in those that could turn off the electricity. What he has demonstrated, he believes, is that lack of control over an event, not the experience itself, is what weakens the immune system.

Other researchers agree. Jay Weiss, a psychologist at Duke University School of Medicine, has shown that animals who are allowed to control unpleasant stimuli don’t develop sleep disturbances or changes in brain chemistry typical of stressed rats. But if the animals are confronted with situations they have no control over, they later behave passively when faced with experiences they can control. Such findings reinforce psychologists’ suspicions that the experience or perception of helplessness is one of the most harmful factors in depression.

One of the most startling examples of how the mind can alter the immune response was discovered by chance. In 1975 psychologist Robert Ader at the University of Rochester School of Medicine conditioned (使形成条件反射) mice to avoid saccharin (糖精) by simultaneously feeding them the sweetener and injecting them with a drug that while suppressing their immune systems caused stomach upsets. Associating the saccharin with the stomach pains, the mice quickly learned to avoid the sweetener. In order to extinguish this dislike for the sweetener, Ader reexposed the animals to saccharin, this time without the drug, and was astonished to find that those mice that had received the highest amounts of sweetener during their earlier conditioning died. He could only speculate that he had so successfully conditioned the rats that saccharin alone now served to weaken their immune systems enough to kill them.

1. Laudenslager’s experiment showed that the immune system of those rats who could turn off the electricity ________.

A) was strengthened

B) was not affected

C) was altered

D) was weakened

2. According to the passage, the experience of helplessness causes rats to ________.

A) try to control unpleasant stimuli

B) turn off the electricity

C) behave passively in controllable situations

D) become abnormally suspicious

3. The reason why the mice in Ader’s experiment avoided saccharin was that ________.

A) they disliked its taste

B) it affected their immune systems

C) it led to stomach pains

D) they associated it with stomachaches

4. The passage tells us that the most probable reason for the death of the mice in Ader’s experiment was that ________.

A) they had been weakened psychologically by the saccharin

B) the sweetener was poisonous to them

C) their immune systems had been altered by the mind

D) they had taken too much sweetener during earlier conditioning

5. It can be concluded from the passage that the immune systems of animals ________.

A) can be weakened by conditioning

B) can be suppressed by drug injections

C) can be affected by frequent doses of saccharin

D) can be altered by electric shocks

【答案】B C D C A

At some time in your life you may have a strong desire to do something strange or terrible. However, chances are that you don't act on your impulse, but let it pass instead. You know that to commit the action is wrong in some way and that other people will not accept your behavior.

Perhaps the most interesting thing about the phenomenon of taboo(禁忌的) behavior is how it can change over the years within the same society, how certain behavior and attitudes once considered taboo can become perfectly acceptable and natural at another point in time. Topics such as death, for example, were once considered so upsetting and unpleasant that it was a taboo to even talk about them. Now with the publication of important books such as On Death and Dying and Learning to Say Goodbye, people have become more aware of the importance of expressing feelings about death and, as a result, are more willing to talk about this taboo subject.

One of the newest taboos in American society is the topic of fat. Unlike many other taboos, fat is a topic that Americans talk about constantly. It's not taboo to talk about fat; it's taboo to be fat. The “in” look is thin, not fat. In the work world, most companies prefer youthful-looking, trim executives to sell their image as well as their products to the public. The thin look is associated with youth, vigor, and success. The fat person, on the other hand, is thought of as lazy and lacking in energy, self-discipline, and self-respect. In an image-conscious society like the U. S. , thin is “in”, fat is “out”.

It's not surprising, then, that millions of Americans have become obsessed (着迷) with staying slim and “in shape”. The pursuit of a youthful physical appearance is not, however, the sole reason for America's obsession with diet and exercise. Recent research has shown the critical importance of diet and exercise for personal health. As in most technologically developed nations, the life-style of North Americans has changed dramatically during the course of the last century. Modern machines do all the physical labor that people were once forced to do by hand. Cars and buses transport us quickly from point to point. As a result of inactivity and disuse, people's bodies can easily become weak and vulnerable to disease. In an effort to avoid such a fate, millions of Americans are spending more of their time exercising every day.

26. From the passage we can infer taboo is .

A. a strong desire to do something strange or terrible

B. a crime committed on impulse

C. behavior considered unacceptable in society's eyes

D. an unfavorable impression left on other people

27、Based on the ideas presented in the passage we can conclude “being fat”_______.

A. will always remain a taboo B. is not considered a taboo by most people

C. has long been a taboo D. may no longer be a taboo some day

28、The topic of fat is_______many other taboo subjects.

A. the same as B. different from

C. more popular than D. less often talked about than

29、In the U. S. , thin is “in”, fat is “out”, this means_______.

A. thin is “inside”, fat is “outside”

B. thin is “diligent”, fat is “lazy”

C. thin is “youthful”, fat is “spiritless”

D. thin is “fashionable”, fat is “unfashionable”

30、The main reason the passage gives for why so many Americans are exercising regularly is_______.

A. their changed life-style

B. their eagerness to stay thin and youthful

C. their appreciation of the importance of exercise

D. the encouragement they have received from their companies

26. C 27. D 28. B 29. D 30. B

Pronouncing a language is a skill. Every normal person is expert in the skill of pronouncing his own language; but few people are even moderately proficient at pronouncing foreign languages. Now there are many reasons for this， some obvious， some perhaps not so obvious. But I suggest that the fundamental reason why people in general do not speak foreign languages very much better than they do is that they fail to grasp the true nature of the problem of learning to pronounce， and consequently never set about tackling it in the right way. Far too many people fail to realize that pronouncing a foreign language is a skill―one that needs careful training of a special kind， and one that cannot be acquired by just leaving it to take care of itself. I think even teachers of language， while recognizing the importance of a good accent， tend to neglect， in their practical teaching， the branch of study concerned with speaking the language. So the first point I want to make is that English pronunciation must be taught; the teacher should be prepared to devote some of the lesson time to this， and should get the student to feel that here is a matter worthy of receiving his close attention. So， there should be occasions when other aspects of English， such as grammar or spelling， are allowed for the moment to take second place.

Apart from this question of the time given to pronunciation， there are two other requirements for the teacher： the first， knowledge; the second， technique.

It is important that the teacher should be in possession of the necessary information. This can generally be obtained from books. It is possible to get from books some idea of the mechanics of speech， and of what we call general phonetic theory. It is also possible in this way to get a clear mental picture of the relationship between the sounds of different languages， between the speech habits of English people and those， say， of your students. Unless the teacher has such a picture， any comments he may make on his students‘ pronunciation are unlikely to be of much use， and lesson time spent on pronunciation may well be time wasted.

26. What does the writer actually say about pronouncing foreign languages?

A. Only a few people are really proficient.

B. No one is really an expert in the skill.

C. There aren’t many people who are even fairly good.

D. There are even some people who are moderately proficient.

27. The writer argues that going about the problem of pronunciation in the wrong way is

A. an obvious cause of not grasping the problem correctly

B. a fundamental consequence of not speaking well

C. a consequence of not grasping the problem correctly

D. not an obvious cause of speaking poorly

28. The best way of learning to speak a foreign language， he suggests， is by_______.

A. picking it up naturally as a child