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题目
题型:不详难度:来源:
----This is for you.
----You____have!I do not know how to thank you.
A.must notB.couldn´tC.needn’t D.shouldn’t

答案
D
解析

试题分析:情态动词用法。Must not禁止,千万不能;couldn’t have done不可能做某事;needn’t heve done本不需要做某事,实际上却做了;shouldn’t have done本不应该做某事,实际上却做了。句意:—这是给你的。—你本不应该给我的。我不知道该怎么感谢你。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【----This is for you. ----You____have!I do not know how to thank you.A.must notB.】;主要考察你对虚拟语气等知识点的理解。[详细]
举一反三
He____to school,so he turned off the alarm clock and went back to sleep.
A.needn’t have goneB.hasn’t needed to go
C.needn’t goD.didn’t need to go

题型:不详难度:| 查看答案
         for the free tickets, I would not have gone to the films so often.
A.If it is notB.Were it notC.Had it not beenD.Should it not be

题型:不详难度:| 查看答案
-----Are you pleased with the play?
------Not at all. It couldn’t have been___.
A.worseB.so betterC.betterD.the worse

题型:不详难度:| 查看答案
My father worked day and night. Otherwise, there ________ no one to support the family.
A.would be B.must beC.would have beenD.must have been

题型:不详难度:| 查看答案
But for your help,I ________ the place.
A.can’t find    B.can’t have foundC.couldn’t have foundD.haven’t found

题型:不详难度:| 查看答案
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