Question

【题目】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(白内障). 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.

【1】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

【2】According to the passage, who is more likely to be nearsighted?

A. A typist. B. A sailor.

C. A tourist. D. A driver.

【3】People who are farsighted _____.

A. can do a lot of close work without glasses

B. can 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. can correct their eyes by glasses

【4】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

Answer 1

【答案】

【1】B

【2】A

【3】D

【4】D

【解析】

试题分析：我们要珍爱自己的眼睛。眼睛一旦出了问题，我们就必须戴眼镜，甚至是做手术。而在夜晚，我们用余光将会看得更清楚些。

【1】B细节信息题。根据文章第一自然段可知，失去了才知道其珍贵。直到我们看不清楚时，才会明白眼睛是多么地重要。故该题正确答案为B.

【2】A推理判断题。根据文章第二段中Many people who do a lot of close work, such as writing and reading, become nearsighted. 可知，总是近距离看东西的人往往会成为近视眼。故该题正确答案为A. typist打字员。

【3】D细节推理题。根据文章第三段的描写可知，远视眼看不清离他近的东西。而又根据文章第四段Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. 可推知，患近视、远视及因为眼睛变形所导致的看不清，都可以通过戴眼镜来矫正。故该题正确答案为D.

【4】D推理判断题。根据文章最后一段中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.及the center of the eye, which is very sensitive in daylight, is not as sensitive as the sides of the eye after dark.可知，在夜晚眼睛中间不如侧边敏感，所以在晚上要看得清楚一些需要在方向上错开一点，不要正对着。故该题正确答案为D.