She __________ have left school, for her bike is still here.A.can’tB.wouldn’tC.s

She __________ have left school, for her bike is still here.A.can’tB.wouldn’tC.s

题型:不详难度:来源:
She __________ have left school, for her bike is still here.
A.can’tB.wouldn’tC.shouldn’t D.needn’t

答案
A
解析

试题分析:考查情态动词表示推测。如果是对过去情况的推测,要使用“情态动词+have done”的形式;如果是对现在的情况进行推测要使用“情态动词+动词原形”;句意:她不可能已经离开了学校,因为她的自行车还在那里。说明是对过去发生的情况的推测。Shouldn’t have done本不应该做某事,实际上却做了;needn’t have done本不需要做某事实际上却做了。故A正确。
点评:情态动词的用法比较复杂。突出的是表示推测:如果是对现在的情况进行推测,使用“情态动词+动词原形”;对过去的情况进行推测,使用“情态动词+have done”;情态动词也经常用于虚拟语气,要分具体情况来分析,在条件句中和宾语从句,表语从句中都有体现。
举一反三
— It’s the classroom! So you ______ know eating is not allowed here.
— Oh, sorry.
A.need B.willC.may D.must

题型:不详难度:| 查看答案
-I didn"t go to the art show, because I lost my ticket.
-You______have borrowed mine I didn"t go to see it anyway
A.would B.needC.couldD.must

题型:不详难度:| 查看答案
— Is it good to look up every new word when I come across it in reading?
—No,you _____,because you are likely to guess the meaning from the context,
A.don"t have to B.shouldn"tC.can"tD.mustn"t

题型:不详难度:| 查看答案
---- It"s so cold! Why are your windows still open?
---- Oh, they _______.
A.aren"t closingB.won"t closeC.won"t be closedD.aren"t closed

题型:不详难度:| 查看答案
No matter how healthy you _____be,you need to consult a doctor from time to time.
A.shouldB.willC.mustD.may

题型:不详难度:| 查看答案
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