His failure suggested that he   the teacher’s suggestions.A.can’t have followedB

His failure suggested that he   the teacher’s suggestions.A.can’t have followedB

题型:不详难度:来源:
His failure suggested that he   the teacher’s suggestions.
A.can’t have followedB.needn’t follow
C.mustn’t have followedD.shouldn’t follow

答案
A
解析

试题分析:句意:他的失败表明了他不可能听了老师的建议。can’t have done不可能做了某事;must表推测不能用于否定句;因为现在已经失败,所以这是对过去的推测,过去没有听从老师的建议。故选A。
点评:本题难度适中。情态动词的完成式是高中阶段的重难点之一,需要考生熟记它们的用法,在各类考试中经常出现,它主要用于表示对过去情况进行推测或责备等。
即学即练:—Can I have something to eat, Mum? I feel hungry.
You ________ be hungry. You’ve just had some bread and hamburger.
A. mayn’t    B. won’t    C. mustn’t   D. can’t
解析:D。否定意义的推测用can或者could来代替must,表示强烈语气。
举一反三
--- The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?
---____ my students have a try?
A.Shall B.Must C.Will D.May

题型:不详难度:| 查看答案
     we go to the McDonald’s? I’m sick of the food there!
A.NeedB.CanC.ShallD.Must

题型:不详难度:| 查看答案
It is recommended that the project ________ not be started until all the preparations have been made.
A.mustB.canC.needD.should

题型:不详难度:| 查看答案
-Why are you looking so worried? Is there anything I can do for you?
-The computer        break down when I nearly finished my composition.
A.can B.should C.must D.dare

题型:不详难度:| 查看答案
I told Sally how to get there, but perhaps I ________ for her.
A.had to write it out
B.must have written it out
C.should have written it out
D.need to have written it out

题型:不详难度:| 查看答案
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