Unit1- Unit2情态动词

Unit1 (may, might, can, could will, would shall, should must, can not)

Unit2 （ought to , ought not to have to , do not have to must not, need not）

一 情态动词典例

2011年高考题

1.(2011全国卷,32)

They ______ have arrived at lunchtime but their flight was delayed.

A. will B .can C. must D. should

答案 D

解析：考查虚拟语气的用法。句意为―他们本该午饭时到达，但他们的航班推迟了。‖will have done将来可

以完成；can have done可能做过……吗？表示对过去行为的怀疑，用于疑问句；must have done一定做过某

事，表示对过去事情的肯定推测；should have done本来应该做某事，而实际没做。but their flight was delayed

这样的结果，说明他们本来该到达却没有到达，因此选D。

2.(2011全国卷II,8)

If you ______ smoke, please go outside.

A. can B. should C. must D. may

答案 C

解析：考查情态动词的用法。句意为―如果你非得要抽烟，请到外面去抽。‖must (表示主张)一定要，坚持

要。根据后一句please go outside的要求，选C。

3.（2011北京卷,24）

——I don‘t really like James. Why did you invite him?

——Don‘t worry. He ______ come. He said he wasn‘t certain what his plans were.

A. must not B. need not C. would not D. might not

答案 D

解析：考查情态动词的用法。句意为―——我真不喜欢James。你为何请了他？——别担心。他可能来不了。

他说他的计划还没安排好。‖题干中的he wasn‘t certain说明他可能不来，可能来，因此使用不完全否定might

not。选D。

4.（2011北京卷,28）

——Where are the children? The dinner‘s going to be completely ruined.

——I wish they ______ always late.

A. weren‘t B. hadn‘t been C. wouldn‘t be D. wouldn‘t have been

答案 A

解析：考查虚拟语气的用法。句意为―——孩子们哪儿去了？这顿饭快要吃不起来了。——我但愿他们不要

老是迟到。‖wish引出虚拟语气，题干中出现always，从句虚拟使用一般过去时。

选A。

5.（2011北京卷,30）

Maybe if I ______ science, and not literature then, I would be able to give you more help.

A. studied B. would study C. had studied D. was studying

答案 C

解析：考查虚拟语气的用法。句意为―或许当初我要是学了理科而不是文科，现在就能给你更多的帮助。‖then

表示过去的时间，if引导的从句是对过去的虚拟，因此使用过去完成时。选C。

6.（2011天津卷,15）

I ______ sooner but I didn‘t know that they were waiting for me.

A. had come B. was coming C. would come D. would have come

答案 D

解析：考查虚拟语气的用法。句意为―我本来可以早点来，但我真不知道他们在等我。‖but I didn‘t know表

示了过去时间，因此前句是对过去的虚拟，用主语+should / would / could / might + have done表达，故选D。

7.（2011上海春招,27）

Some young people these days just ______ go out of their homes to contact the real world.

A. mustn‘t B. won‘t C. mightn‘t D. shouldn‘t

答案 B

解析：考查情态动词的用法。句意为―现在一些年轻人就是不愿意走出家门接触真正的世界。‖mustn‘t禁止，

不允许；won‘t不愿意，就是不，偏不，具有主观性；mightn‘t可能不；shouldn‘t不应该。根据句意选B。

8.（2011江苏卷,34）

——I left my handbag on the train, but luckily someone gave it to a railway official.

——How unbelievable to get it back! I mean, someone ______ it.

A. will have stolen B. might have stolen C. should have stolen D. must have stolen