虚拟语气讲解与练习

虚拟语气第一部分知识讲解虚拟语气存在于if条件从句中和一些固定结构中，虚拟语气与动词的过去的某种时态形影不离。

虚拟语气是通过谓语动词的变化来实现的。

第一节 if 条件状语从句中的虚拟语气一、if 条件状语从句中表示对将来、过去、现在的虚拟If she invites me tomorrow, I shall go to the party.（真实条件句）如果她明天邀请我参加聚会,我就去.If she invited me, I should go to the party.(虚拟条件句)(说话人认为邀请的可能性较小或不可能)If I were you, I should study English. (I am not you , so I shall not study English.)If I had time, I would attend the wedding. (I does not have time, so I will not attend the wedding.)(You did not take my advice, so you have failed in the examination.)If it should rain tomorrow, our picnic would be put off.If it were to rain tomorrow, our picnic would be put off.二、混合虚拟语气(条件状语从句表示的行为和主句表示的行为所发生的时间不一致时,动词的形式要根据它所表示的时间来调整.)If you had worked hard, you would be very tired. (从句说的是过去,主句指的是现在)If he had followed the doctor’s advice, he would be quite all right nowIf I were you, I would have gone home.If you had practiced speaking English every day, you would speak English well enough.如果你当初每天都练习说英语的话,你的英语就会说得很好.三.用介词短语代替条件状语从句(可以改为条件状语从句)Without air, there would be no living things.相当于:If there were no air, there would be no living things.But for your help, I couldn’t have done it.相当于:If you had not helped me, I couldn’t have done it.四、虚拟语气的倒装：如果条件状语从句的谓语中有were, had或should,就可以倒装。

将were, had或should放到句首,谓语主语之前, if去掉。

变为”were/had/should+主语”的形式。

如果从句没有were, had或should,就不能倒装。

If I were to do it, I’d do it some other way.→ Were I to do it, I`d do it some other way.If you should fail, try again.→ Should you fail, try again.If you had been here earlier, you would have seen him.→ Had you been here earlier, you would have seen him.If you came tomorrow, we would have the meeting.这句话不能倒装.而且,在虚拟条件状语从句中,省略了if的倒装形式的句首不能用动词的缩略形式.如:Were it not for the expense, I would go to Italy.但不能说: Weren`t it for the expense, I would go to Italy.第二节固定结构中的虚拟语气一、.It is(high) time(that)……句型中的虚拟语气在此句型中,后面的从句的谓语动词常用过去式,.意思为“（现在）该……的时候了”It is high time that you got married. It is high time that I lost some weight.二、.wish+宾语从句结构I wish it were Spring all the year round. I wish I were Jane.I wish you could go with us. We wish we had arrived there two hours earlier.三.If only句中的虚拟语气If only he were here!If only I knew more!If only he had stayed with us!If only I had taken his advice!注：if only也可以用于虚拟条件句中。

例如：If only I had more money, I could buy a car.四、在would （just ）as soon （宁愿）would sooner （宁愿）would （just） rather （宁愿）后的宾语从句中，从句谓语用一般过去时来表示现在或将来要做的事情，若谈及过去的动作，用过去完成时。

其后不加that。

.I`d rather I were in the rain now.Don’t always make noise. I’d rather you kept silent.五、在in case, for fear that, lest等引导的状语从句中，意为“以免”，从句要用虚拟语气。

构成should+动词原形，should也可以省略。

Take an umbrella with you in case it (should) rain.六、as if/as though或even if/even though引导的从句中的虚拟语气如果从句中表示的动作发生在过去,则谓语动词用had+过去分词形式;如果指的是现在的状况,则用过去式;指将来则用would(should, could)+动词原形.这里只看从句动作发生的时间,与主句的时态没有关系. Some metals look at first sight as though they were gold.When a pencil is partly in a glass of water, it looks as if it were broken.She looks as if/though she were ill.He would not resign even if the heaven should collapse.(倒塌)七.在表示建议,要求,命令等意思的动词(request, require, demand, advise, suggest, propose, recommend, command, order , desire, insist,)后面的宾语从句中, 谓语动词用should+动词原形,should可以省略,that不能省略.He suggested that we (should) have a meeting.The commander ordered that the bridge(should) be bombed.八.与表示请求,建议,命令等动词相对应的名词后面的表语从句,同位语从句用虚拟语气.(suggesttion,command,demand,desire,request,requirement,insist,advice,propose,order).Our suggestion is that education not be industrialized.（表语从句）==We suggested that education not be industrialized.He made a request that he(should) be allowed to take 3 days off.==He requested that he be allowed to take 3 days off.九.表示建议,请求,命令动词在以下结构中（主语从句）“It is suggested/ required/ request/ ordered/ advised/ insisted/ demanded that……”用虚拟语气.It was suggested that he (should) attend the conference.It was requested that the trial (should) be reported openly.十.在以下结构中（主语从句）It is important/ necessary/ strange/ desirable/ advisable/ better/ essential/ vital / imperative(必须的)that…句型中.that引导的从句用虚拟语气，should 可以省略,that不能省略.It is essential that there should be enough food and clothing for the winter。

It is desirable that your wedding be postponed until next July.第二部分虚拟语气练习题一、if条件句中表示对过去的虚拟1. ________, he would have come to class.A If Mike is able to finish his homeworkB Would Mike be able to finish his homeworkC If Mike could finish his homeworkD If Mike had been able to finish his homework2. __________your advice yesterday, I would have missed the train.A Had I not takenB If I didn`t takeC If I haven`t takenD Provided I didn`t take3. He ____________ killed last night if he had taken part in the surprise attack on the night.A .might beB would beC might have been D. should have been4. If he had been in better health, he ____________more books.A. can writeB. could have writtenC. could writeD. have written5._____ , everything would have been all right.A. He had been hereB. Been here he hadC. Here he had beenD. Had he been here二、混合虚拟语气6. I ________ a little earlier, but I met a friend of mine on the way.A. should arriveB. would be arrivingC. could have arrivedD. arrived三、用介词短语(without, but for)代替条件状语从句7. ________ your help, I could not have finished my work so early.A withB byC forD without8. Without his wise mother, he _________ such a successful scientist.A. would not becomeB. should not have becomeC. may not have becomeD. could not have become四、It’ s (high/about)time结构9. It’s time the dog __________ how to behave properly.A is learningB learnsC learned D. to learn10. It’s high time you _________ the problem carefully about what you will do in the future.A are studiedB must studyC studied D. study11. It’s high time we_______ something to stop road accidents.A are doingB didC will do D. do12. It’s high time __________ about the traffic problem.A. something were doneB. something is doneC. anything will be doneD. nothing to be done五、在wish+宾语从句中13. I wish you __________here last night. All of us were waiting for your arrival.A. cameB. had comeC. comeD. will come六、在would (just) rather, would (just) as soon ,would sooner(宁愿)结构中14. I’d j ust as soon __________those important papers with you.A. that you won’t takeB. your not taking C please don’t you take D. you didn’t take15. Mr. Smith would just rather we__________ now , but we must go to work.A. not leave B didn’t leave C are not to leave D won’t leave16. I would rather you _____ to the party with her.A goB wentC will goD has gone七、在表示建议,请求,命令的宾语从句中17. Experiments __________that accurate measurements be made.A. showB. proveC. demandD. head18. The teacher insis ted that we our homework before 9:00 o’clock.A. finishedB. had finishedC. finishD. was finishing八、表示建议,请求,命令,坚持等同位语、表语从句中的虚拟语气19. One of the requirements for a fire is that the material _______ to its burning temperature.A. is heatedB. will be heatedC. be heatedD. would be heated20. We are all for your proposal that the discussion__________.A. be put offB. was put offC. will be put offD. should put off九、主语从句21. It is requested that the rent for the house _________ in advance.A. will have to be paidB. has to be paidC. should have to be paidD. should be paid22. It is very important that enough money_________ to fund the project .A. be collectedB. must be collectedC. is collectedD. can be collected23. It is necessary that the problem __________ in some way or other.A. is settledB. has been settledC. be settledD. was settled第三部分补充练习1. If you _______5 minutes earlier, you ________ him.A. should come; had seenB. came; would seeC. come; will seeD. had come; would have seen2. He hesitated for a moment before kicking the ball, otherwise he __ a goal.A. had scoredB. scoredC. would scoreD. would have scored3. It is strange that Mr. Zhang ______ such silly mistakes.A. madeB. makesC. makeD. had made4. They demanded that the books ______ to the school library at once.A. returnB. should returnC. be returnedD. would be returned5. How I wish every family _____ a large house with a beautiful garden!A. hasB. hadC. will haveD. had had6. It is high time that we _______ to think how to deal with the money.A. would beginB. beganC. beginD. begun7. If only he _______ quietly as the doctor instructed, he would not suffer so much now.A. liesB. layC. had lainD. should lie8. If I had had enough time, I _______ my work.A. would finishB. must have finishedC. would have finishedD. had finished9. Ten minutes earlier, they ________ the plane.A. will catchB. would catchC. would have caughtD. will have caught10. Mr. Green requires that the students ________ a composition every other week.A. writeB. writtenC. would writeD. will write11. Had he studied hard, he ______ the exam.A. would passB. could passC. had passedD. would have passed12. I wish I _______ what is happening there in this room.A. knowB. knownC. knewD. should know13. If there were no water in the world, everything __________.A. will dieB. would dieC. would have diedD. would have been dead14. _______ what was going to happen, I would never have left her alone.A. Had I knownB. If I knowC. If I knewD. If had I known15. He ordered that the work ________ right away.A. should finishB. finishedC. would be finishedD. be finished16. ---Shall we go to the movie tonight?--- No, I’d rather____at home with our baby. You’d better not leave it to the babysitter at night.A. you stayedB. you stayC. stayedD. stay17. Mrs. Black insists _______ in that old hotel.A. not to stayB. not stayingC. staying notD. that she not stay.18. If you had spoken clearly, you would ________ .A. understand itB. have understoodC. be understoodD. have been understood19.If you _______ that late movie last night, you wouldn’t be so sleepy.A. haven’t watchedB. hadn’t watchedC. didn’t watchD. wouldn’t have watched20.Without electronic computers, much of today’s advanced technology __________ achieved.A. will not beB. would not beC. would not have beenD. cannot have been21.You didn’t let me drive. If we ______ i n turn. You _______ so tired.A. drove, didn’t getB. drove, wouldn’t getC. were driving, wouldn’t getD. had driven, wouldn’t have got22. Wouldn’t you rather that your child ______ to bed early?A. goB. wentC. would goD. goes23.But for the traffic jam, we _______ on time.A. arrivedB. would arriveC. will have arrivedD. would have arrived24 My suggestion is that he _______ there at once.A. should sendB. would sendC. be sentD. sent25.If only we ________ about the danger, we could not have joined you.A. knewB. had knownC. should knowD. know26.I didn’t see your sister at the meeting. If she ______, she would have met my brother.A. has comeB. did comeC. cameD. had come27.—If he _____, he ______ that food.---Luckily he was sent to the hospital immediately.A. was warned: would not takeB. had been warned; would not have takenC. would be warned; had not takenD. would have been warned: had not taken28.Without electricity, human life _________ quite different today.A. isB. will beC. would have beenD. would be29.I insist that a doctor _________ immediately.A. has been sent forB. sends forC. will be send forD. be send for30.If my lawyer _______ here last Saturday, he ______ me from doing.A. had been; would have preventedB. had been; would preventC. were ; would preventD. were; would have prevented31. ________, all the students would hear.A. If the teacher had spoken louderB. If the teacher will speak louderC. Had the teacher spoken louderD. If the teacher spoke louder32. It is of the utmost importance that gasoline ______ smoothly in the engine if the engine is to function properly.A. burnsB. burnC. would burnD. has burned33. What should we do if it_______ tomorrow?A. should snowB. would snowC. snowD. will snow34. If you_______ at school, you_________ a college student now.A. had studied hard; would have beenB. should have studied hard; should have beenC. had studied hard; would beD. would study hard; must have been35.We________ the work on time without your help.A. hadn’t finishedB. didn’t have finishedC. couldn’t have finishedD. can’t have finished36. He must have had an accident, or he _________then.A. would have been hereB. had to be hereC. should be hereD. would be here37. _______ I been there, I could have explained it.A. HaveB. ShouldC. WouldD. Had38.We insist that a meeting _________ held as soon as possible.A. have beenB. should beC. to beD. being39. Eleven thirty. It’s time we ___________ lunch.A. must prepareB. are preparingC. preparedD. prepare40. The guard at the gate insisted that everybody __________ the rules.A. obeysB. obeyC. will obeyD. would obey41.The apartment manager demanded ___________ immediately.A. Bill to move outB. that Bill move outC. that Bill moves outD. that Bill moved out42. Look at the terrible situation I am in! If only I ______ your advice.A. followB. had followedC. would followD. have followed43. The teacher demanded that the exam ________ before eleven.A must finishB would be finishedC be finishedD must be finished44. They must have been enjoying themselves there, or they ______ so long.A. can’t have stayedB. wouldn’t have stayed.C. needn’t have stayedD. could n’t stay45._________ you were coming, I’d have met you at the railway station.A. I had knownB. I have knownC. Had I knownD. Have I known46 _________, we could not have finished the work on time.A. If they do not helpB. Should they offer to helpC. But for their helpD. It was not for their help.47. Your suggestion that he ________ till next week is reasonable.A. will waitB. waitC. shall waitD. waits48.I’d rather you ________ anything about it for the time being.A. don’tB. didn’tC. didn’t doD. do49.If I had known how to repair the toaster, I surely ________her.A. will tellB. shall tellC. would have toldD. would tell50. She was busy preparing for the final exam, otherwise she __________you much help.A. would giveB. gaveC. had givenD. would have given（注：文档可能无法思考全面，请浏览后下载，供参考。