–Look! A man is cutting a tree on the moon. --It ______ be true. The teacher sa
题型:不详难度:来源:
–Look! A man is cutting a tree on the moon. --It ______ be true. The teacher said there is no air on the moon.A.can’t | B.may not | C.shouldn’t | D.mustn’t |
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答案
A |
解析
试题分析:句意:看!一个人在月亮上砍树。一定不是真的。老师说月亮上没有空气。A. can’t 表示否定猜测,一定不是 B. may not 不可能 C. shouldn’t 不应该 D. mustn’t一定不要做某事,表示禁止和劝告。情态动词可以表示对事物的推测,肯定句中由情态动词must/may/might+be 构成,意为“一定是,肯定是/也许是”,否定句由can’t+be构成。故选A。 |
举一反三
— Can you play the guitar? — _________________. A.No, I can | B.Sure, I can’t | C.No, you can | D.Yes, a little |
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------Shall we meet at the station at 8 a.m? -------In fact we________.The train _______until 10a.m.A.mustn’t ;doesn’t leave | B.mustn’t ;leaves | C.needn’t ;won’t leave | D.needn’t;will leave |
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You drive your car so fast. It’s dangerous.A.wouldn’t | B.shouldn’t | C.couldn’t | D.mightn’t |
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This CD _______ belong to Bill. It has his name on it.A.mustn’t | B.might | C.can’t | D.must |
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You have worked for a long time. You ____________ be very tired. A.must | B.can’t | C.could | D.mustn’t |
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