2018年高考英语二轮复习专题07情态动词和虚拟语气讲学案

【考点定位】本题考查情态动词的用法。

（2013·新课标Ⅱ卷)6. Since nobody gave him any help, he     have done the research on his own.

A. can       B. must       C. would         D. Need

【答案】B

【解析】考查情态动词和虚拟语气。can have done sth可能已经做了某事；must have done sth一定已经做了某事；would have done表示与过去的事实相反；need have done sth本来需要做某事。句意“因为没有人给他任何的帮助，他一定是自己完成的那项研究。”根据句意可知，表示的是肯定的推测，用must，故选B。

【考点定位】情态动词和虚拟语气。

（2013·浙江）20.-----Excuse me, but could I trouble you for some change?

  ------_______.Will pennies do?

A.I know           B. Never mind        C.I am sure          D. Let me see

【答案】D

【解析】

试题分析：句意：打扰一下，能麻烦您给我换些零钱吗？我看看，便士可以吗？通过will pennies do？可以判断出是选D。A 我知道，Ｂ没关系　C我确定 Ｄ让我想想，让我看看。let me see 除了表示让我看看，还可以译为让我想想。比如：how can I go to the nearest hospital? Let me see. Oh, go straight….

【考点定位】情景交际 

（2013·浙江）8.Eye doctors recommend that a child’s first eye exam____ at the age of six months old.

A.was             B. be               C. were               D. is 

【答案】B 

 

【考点定位】虚拟语气。

（2013·浙江）3.I______ myself more－it was a perfect day.

A.shouldn’t have enjoyed             B. needn’t have enjoyed

C.wouldn’t have enjoyed            D. couldn’t have enjoyed

【答案】D

【解析】句意：我实在是太开心了，真是很完美的一天。比较级与否定词连用表最高级，那么此处主要是看情态动词的选用了。A 本来不应该开心却很开心 B mustn’t后不会出现have done，搭配本身错误 C不会让自己更开心了  D不可能让自己更开心了（这是最开心的）比较级与否定词连用表最高级，还有类似的表达：I couldn’t agree with you more；it couldn’t be better…

【考点定位】情态动词

（2013·大纲卷）26. Since nobody gave him any help, he     have done the research on his own.

A. can       B. must       C. would         D. Need

【答案】B

【解析】考查情态动词和虚拟语气。can have done sth可能已经做了某事；must have done sth一定已经做了某事；would have done表示与过去的事实相反；need have done sth本来需要做某事。句意“因为没有人给他任何的帮助，他一定是自己完成的那项，.com研究。”根据，句意可知，表示的是肯定的推测，用must，故选B。

【考点定位】情态动词和虚拟语气。

（2013·北京卷)35. --- You needn’t take an umbrella. It isn’t going to rain.

--- Well, I don’t know. It   do.

A. might B. need C. would D. should

【答案】A

【解析】根据 I don’t know.可知，答句中含有不确定的口气，因此应当选择“可能”，即A项。句意为，----你不需要带雨伞，不会下雨的。----额，我不知道，有可能要下雨的。Need意为需要， would意为将要、会，should意为应当。其中would和should都有比较有把握，肯定的含义，故排除。

【考点定位】考察情态动词的用法。

（2013·北京卷)34. If we   a table earlier, we couldn’t be standing here in a queue.

A. have booked B. booked C. book D. had booked

【答案】D

 

【考点定位】考察虚拟语气

（2013·福建卷)30. —Do you think George has passed the driving test?

—No. If so, he _____his car to our college yesterday.

A. would drive B. drove   C. would have driven D. had driven

【答案】C

【解析】考查虚拟语气：句意：--你认为乔治通过驾驶测试了吗？--没有，如果这样的话，昨天他就会开车到大学了。这里的if so是隐含的虚拟条件句，相当于if he had passed the driving test表示虚拟条件句，主句是would have done（本来会做却没做）。选C

【考点定位】考查虚拟语气

（2013·湖南卷)32. He ________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.

A. wouldn’t B. shouldn’t C. couldn’t D. mustn’t