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题目
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–Do you know where David is? I couldn’t find him anywhere.
– Well. He _____ have gone far — his glasses are still here.
A.shouldn’tB.mustn’tC.can’tD.wouldn’t

答案
C
解析

试题分析:考查情态动词用法。“情态动词+have done”既可以表示对过去情况的推测,也可以表示对过去情况的虚拟。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;wouldn’t have done不会做了某事;句意:—你知道David到哪里去了?我到处都找不到他。—我不可能走远,他的眼镜还在这里。根据句意是对过去发生的事情的有把握的否定推测,故使用can’t have done;故C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【–Do you know where David is? I couldn’t find him anywhere. – Well. He _____ have】;主要考察你对虚拟语气等知识点的理解。[详细]
举一反三
It is requested that each of the teachers invited      a performance at the party.
A.should giveB.will giveC.has to giveD.must give

题型:不详难度:| 查看答案
One of the requirements for the experiment is that the material _____ to its burning temperature.
A.is heatedB.will be heatedC.be heatedD.would be heated

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----Mary broke up with me!
----You ______ have forgotten about the Valentine"s Day.
A.shouldn"tB.couldn"tC.needn"tD.mustn"t

题型:不详难度:| 查看答案
No student ______go out of school after eleven o’clock at night without the teacher’s permission.
A.willB.mustC.mayD.shall

题型:不详难度:| 查看答案
-Are you satisfied with her answer?
-Not at all. It couldn’t have been ________.
A.any worseB.so badC.much betterD.the worst

题型:不详难度:| 查看答案
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