.情态动词与虚拟语气常考考点一 情态动词+have done情态动词+have done 表示对过去的虚拟情态动词+have done用法例句must have done想必，准是，一定已经做了否认式为 can’t/couldn’t have doneIt must have rained last night, for the road is quite muddy.can/could have done本来能够做可能做了He could have finished the work in time.Can/Could he have gone to his aunt’s " Cannot/could not have done不可能已经做了He cannot have forgotten it.He couldn’t have forgotten it.may/might have done可能已经做了It’s too late. I think he may have gone to bed.He may not have finished the work. 他也许还没完成那项工作 Should/ought to have done本该做，而实际上未做You ought to have done the work more carefully.needn’t have done本不必做而做了You needn’t have taken a taxi here, for it was very near to my house.had better have done当时最好做了You had better not have scolded her.要是那时你没责骂她就好了。
You had better have found a job.要是当时你找到一份工作就好了would rather have done宁愿当时做了Iraised objections at the meeting, but now I would rather not have done that.would like/love to have done过去愿意做但未做成I would love to have gone to the party last night, but I had to work extra hours to finish the work.1. I have watched that movieit’ll give me horrible dreams.A. Shouldn’t B.needn’t C.couldn’t D.mustn’t2. Mark have hurried. After driving at top speed, he arrived half an hour early.A.needn’t B.wouldn’t C.mustn’t D.couldn’t3.----Sorry, Professor Smith. I didn’t finish the assignment yesterday. -----Oh, you have done it as yesterday was the deadline.A.must B.mustn’t C.should D.shouldn’t4.It have been Tom that parked the car here, as he is the only one with a car.A.may B.can C.must D.should5. He didn’t regret saying what he did but felt that he it differently.A.could express B. would express C.could have expressed D.must have expressed6. -----I’m sorry. I at you the other day. ------Forget it, I was a bit out of control myself.C.mustn’t shout D.mustn’t have shouted7.-----Where is my dictionary" I remember I put it here yesterday. -------You it in the wrong place.A. must put B. should have put C.might put D.might have put8. The weather turned out to be fine yesterday, I the trouble to carry my umbrella with me.A.should have taken B.could have taken C.needn’t have takenD. mustn’t have taken9. As you worked late yesterday, you have e this morning.A.mayn’t B.can’t C.mustn’t D.needn’t10.-----How did you do on the driving test"---------Not so well. I much better, but I was too nervous.A.would do B.could have done C.mustn’t have done D. should do11.you have broken your promise; You painting the house long ago.A. could have finished B. had better finishC. must have finished D.should have finished12.------ I didn’t go fishing last Sunday because my car broke down.---------- you mine. I wasn’t using it.A.should borrow B. could have borrowedC.could borrow D.must have borrowed13. My newly-purchased magazine is nowhere to be found. I have left it on the train"A.Could B. Should C.Must D.Would14. You the meeting to tell me that .you could have e up to me afterwards.A.should have e to B.needn’t have interruptedC.ought to attend D.mustn’t go to15. -----What are you doing, dear"-------I’m watching the football game.-------What" You your homework first.A. would have done B.must have doneC.should have done D. may have done二．情态动词常考情况1.can 表客观存在的可能如：Accidents can happen on such rainy days.Driving on the highway can be dangerous2.shall 可以表示命令，警告，威胁，许诺，宣布法律规定时也要用shall.You shall leave the room at once.It has been announced that candidates shall remain in their seats until all the papers have been collected.He asked me for this book many times. Please tell him he shall have it tomorrow.My father told me, “You shall have a puter on your 18th birthday.〞3. May well 与may as wellmay well + 动词原形，表示很可能 He may well be proud of his son. Her appearance has changed so much that you may well not recognize her.may as well+动词原形，表示“最好，满可以，倒不如〞 You may as well do it at once. We may as well stay where we are.4. must 表示偏要，硬要Must you make so much noise"If you must smoke, please go out.情态动词根本用法can,could表能够，可能can’t, couldn’t不会，不能够，不可能may可能，征询许可might可能should应该，惊讶ought to应该，must必须，肯定的猜想mustn’t一定不要needn’t, don’t need to不必shall询问意见，表警告，威胁，许诺，规定would表意愿，习惯练习1.It is usually warm in my hometown in march, but it be rather cold sometimesA. must B.can C.should D.would2.Peter be really difficult at times even though he’s a nice person in general.A. shall B.should C.can D.must3.Don’t let your head out of a moving bus, which lead to a terrible disaster.A.can B.should C.must D.will4. -----Can I pay the bill by ch。