63.The most important points of trees to man is ________.

A.they help him to make money

B.they give him cool

C.they give him wood and other things

D.they help him to stop drought and floods

62.To see a small thing at night, it is better to look ________ .

A.with wide open eyes　　　　　　 B.with half shut or narrowed eyes

C.straight at it　　　　　　　　　　 D.in a slightly different direction

C

Trees are useful to man in three important ways: they give him wood and other useful things, they give him cool places, and they help to stop drought and flood.

Unluckily, in many parts of the world, man has not found that the third of these points is the most important. Man wants to make money from trees,so he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And also, he is usually too careless to plant and look after new trees. So the forests slowly disappear.

This does not only mean that man will have fewer trees. The results are even worse: for where there are trees, their roots break up soil-make the rain in-and also bind the soil, thus stopping it from being washed away easily; but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When all the top-soil is gone, nothing is left but useless desert.

61.People who are farsighted ________ .

ot do a lot of close work without glasses

only see things that are very close to their eyes

C.have difficulty reading a book if they hold it at arm’s length

D.have the same problem as the nearsighted people

60.According to the passage, a ________ is more likely to be nearsighted.

A.tailor 　　B. doctor　 　C. guard 　　D.painter

59.We don’t know that our eyes are of great importance until ________.

A. we think about our eyes　　　　　 B. we cannot see clearly

C. we wear glasses　　　　　　　　 D. we have to do much reading

58.Equally important is to feel the language. “to feel the language” here means________.

A.to get a knowledge of English by touching

B. to be able to read and write English

C.to translate English into your own by imagining

D.to be able to experience the rich sensation of the language

B

When we can see well, we do not think about our eyes often. It is only when we can not see perfectly that we come to see how important our eyes are.

People who are nearsighted can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing and reading, become nearsighted. Then they have to wear glasses in order to see distant things clearly.

People who are farsighted face just the opposite problem. They can see things that are far away, but they have difficulty reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses too.

Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts. Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.

When night falls, colors become fainter to the eyes and finally disappear. After your eyes have grown used to the dark, you can see better if you use the side of your eyes rather than the centers. Sometimes, after dark, you see a small thing to one side of you, which seems to disappear if you turn your head in its direction. This is because when you turn your head, you are looking at the thing too directly. Men on guard duty sometimes think they see something moving to one side of them. When they turn to look straight at it, they can not see it any more, and they believe they were mistaken. However, this mistake happens because the center of the eye, which is very sensitive in daylight, is not as sensitive as the sides of the eye after dark.

57. “Instead of helping you, your own language gets in your way.”This sentence means that memorizing your own language can ________.

A.help you to study English well

B.stop you mastering English

C.make English easy to learn

D.help you notice mistakes

56.In the writer’s opinion, the most effective way in learning English is ________.

A.to practise speaking, writing and feeling it

B.to forget your own native language

C.to translate everything into his own language

D.to memorize the English words and grammatical rules

54. Our plan certainly _________; it was a great idea.

　 A. paid off　　 B. paid back　　 C. carried out　　 D. paid for

53. In _______, the northerners are keen on dumplings while the southerners are fond of rice.

　 A. common　　　 B. general　　 C. total　　 D. particular