[填空题]We can’t rule out the possibility that ______ (天气变坏).

[填空题]If we truly believe we can win, then we have a very good chance at doing it.
A. A．如果我们真的相信我们能取胜，那么我们就有很好的机会做这件事。
B．如果我们确实相信我们能取胜，那么我们就很有把握做这件事。
C．如果我们确实认为我们能赢，那么我们做这件事就靠机会了。
D．如果我们真的认为我们能取胜，做这件事就是很好的机会。

[单项选择]We can rely on James to carry out this mission for his judgement is always (sound).
A. healthy
B. unmistakable
C. reliable
D. unquestionable

[单项选择]It is raining so （　） that we can（　）go out without an umbrella.
A. hard; hard
B. hard; hardly
C. hardly; hard
D. hardly; hardly

[填空题]What can we get from library We can get all kinds of______.

[填空题]If we don’ t start out now, we must risk (miss) ______ the train.

[单项选择]When we can see well, we don’t think about our eyes very’ often. It is only when we cannot see perfectly that we come to see how important our eyes ale.
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, reading and sewing, become nearsighted. Then they have to wear glasses in order to see distant things clearly.
People who are farsighted suffer from 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 don’t 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 age these people often became blind. Now, however, it is possible to operate on the cataracts and remove them.
When night falls, colors become fain
A. must lead to blindness
B. can not be treated by operations
C. can be cured
D. can change the color of eyes