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题目
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His work _____ have been completed; otherwise, he wouldn’t be enjoying himself on the beach.
A.shouldB.shouldn’tC.can’tD.must

答案
D
解析

试题分析:考察情态动词用法。Should have done本应该做某事,实际上却未做;shouldn’t have done本不应该做某事,实际上却做了。Can’t have done不可能做了某事;must have done一定做了某事;本句的关键在于otherwise后面的句意。句意:他肯定完成了他的工作,要不然,他不会在海滩上玩得那么开心的。根据句意说明这是对过去发生的事情的有把握的肯定推测。故D正确。
点评:本题是高考必考考点,一定要牢记句型意思。must have done过去肯定做了某事。should have done 本应该做而实际未做。can’t have done 过去不可能做了某事;shouldn’t have done 本不应该做而实际做了。 need have done 本有必要做某事;needn’t have done 本没有必要做某事;注意没有 mustn’t have done的形式。
核心考点
试题【His work _____ have been completed; otherwise, he wouldn’t be enjoying himself o】;主要考察你对动词的分类等知识点的理解。[详细]
举一反三
—It looks as if it’s going to rain, but I’m not sure whether the windows are shut in my apartment.
—You         as well go back to have a look.
A.shouldB.mightC.need D.can

题型:不详难度:| 查看答案
-Why ________ it rain at weekends?
-Never mind, let’s watch TV at home.
A.canB.wouldC.shallD.must

题型:不详难度:| 查看答案
What a pity! Considering his ability and experience, he ____ have done better.
A.needB.mustC.mightD.can

题型:不详难度:| 查看答案
When Marx was in London, he  __   read at the library for hours.
A.wouldB.mightC.couldD.should

题型:不详难度:| 查看答案
---Did Daniel take my football away?
---No, I think it _____ be him, for he doesn’t play football at all.
A.mustB.wouldC.can’tD.shouldn’t

题型:不详难度:| 查看答案
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