1992年6月大学英语四级考试阅读附试题和答案_第2页

　　Passage Three
Questions 31 to 35 are based on the following passages.

The world is known to us through many senses, not just hearing, smell, vision, and at close range, touch and taste.
Our skins let us know whether the air is moist or dry, whether surfaces are wet without being sticky or slippery. From the uniformity of slight pressure, we can be aware how deeply a finger is thrust into water at body temperature, even if the finger is enclosed in a rubber glove that keeps the skin completely dry. Many other animals, with highly sensitive skins, appear to be able to learn still more about their environment. Often they do so without employing any of the five senses.

By observing the capabilities of other members of the animal kingdom, we come to realise that a human being has far more possibilities than are utilised. We neglect ever so many of our senses in concentrating on the five major ones. At the same time, a comparison between animals and man draws attention to the limitations of each sense. The part of the spectrum (光谱) seen by colour-conscious man as red is non-existent for honey-bees. But a bee can see far more in flowers than we, because the ultra-violet (紫外线) to which our eyes are blind is a stimulating (刺激的) part of the insect’s spectrum, and, for honey-bees at least, constitutes a separate colour.

31. From the passage, we realise that ________.
A) man possesses as many senses as animals
B) man possesses a few more senses than animals
C) man possesses far more senses than the five major ones
D) man has fully utilised his senses（A）

32. Which of the following is TRUE?
A) The honey-bee is blind to red.
B) Man is more colour-conscious than the honey-bee.
C) The honey-bee can see far more colours than man.
D) Man is sensitive to the ultra-violet.（B）

33. We can realise how deeply a finger is put into water at body temperature ________.
A) from the sense of direct touch
B) through skin contact
C) from the even distribution of pressure
D) through the difference in temperature（D）

34. The phrase “sensitive skins” (Para. 2 Line 6) most probably means ________.
A) skins that are sticky or slippery
B) skins that are delicate
C) skins that are completely dry
D) skins that are quick to feel and respond（A）

35. What is the main idea of the passage?
A) All senses have their limitations.
B) Man has not fully utilized all his senses.
C) Insects are more sensitive to colours than man.
D) Man is not as good as animals in learning about the environment.（C）
　　Passage Four
Questions 36 to 40 are based on the following passage.

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, remaining the most popular form 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 (强有力的) 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 or more a week will produce considerable improvements in physical health in about three months.

36. According to the passage, what was the percentage of American adults doing regular physical exercises two years ago?
A) About 70%
B) Almost 50%
C) Nearly 60%
D) More than 12%（C）

37. A growing interest in sports developed after ________.
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（A）

38. Which of the following is closest in meaning to the phrase “leveled off” (Para. 2, Line 8)?
A) “become very popular”
B) “stopped being popular”
C) “stopped increasing in popularity”
D) “reached its lowest level in popularity”（D）

39. 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 self-evident
D) are supported by scientific evidence（C）

40. Which of the following would be the best TITLE for the passage?
A) Exercise-The Road to Health.
B) Different Forms of Exercise.
C) Scientific Evidence of Health Benefits.
D) Running A Popular Form of Sport.（B）