虚拟语气经典讲解.pptx

1、 虚拟语气讲解 课件1.英语动词有三种语气， 陈述语气，祈使语气和虚拟语气.2. 定义：用来表示说的话不是事实，或者是不可能发生或可能性比较小的情况，而是一种愿望，建议，假设的语气叫虚拟语气。虚拟语气定义虚拟语气的考点 1、一般条件句中虚拟语气的用法；2、条件句中虚拟语气的倒装；3、名词性从句中虚拟语气的用法；4、状语从句中虚拟语气的用法；5、几种特殊结构中虚拟语气用法；6、虚拟语气与陈述语气的判定。一般条件句中虚拟语气的用法时 间 If 条件句主 句过去had donewould should +have done sthcouldmight现在助动词 be用 were 实义动词 do 用

2、did would should + do sthcouldmight将来did / were should dowere to dowould should + do sthcouldMight1.一般条件句中的虚拟语气1. If I had HIV, I would know because I would feel sick.2. If I were you, I would give AIDS patient a hug.3. If I had taken your advice, I wouldnt have made a mistake.4. If he had been ther

3、e, it wouldnt have happened.与现在事实相反与过去事实相反5. If it should rain tomorrow, they wouldnt go for an outing.6. I think we could do it, if we planned it properly and could borrow the tools.7. If we were to have three days off , we would enjoy a very happy life.与未来事实相反If I were you, I _ buy the house right

4、 now. A. wont B. dont C. wouldnt D. cant2. _more careful, his ship would not have sunk. A. If the captain were B. If the captain had been C. Should the captain be D. If the captain would have been 3. If he _ me tomorrow, I would let him know A. should call B. should not have been able C. were not ab

5、le D. are not able BCA2、条件句中虚拟语气的倒装； 假设条件虚拟倒装。 条件从句中含有 should，were， had 三个助动词并且放在句首时，可以把if省略。If I were you, I would give it up.Were I you, I would give it up. If I had had time, I would have run round that lake again.Had I had time, I would have run round that lake again.If there should be a flood,

6、what should we do? a flood, what should we do?Shoul there be3. 混合(时间错综)型虚拟语气： 假设条件从句谓语动词发生的时间与主句所假设的谓语动词不一致，叫做错综条件虚拟语气。主句和从句的谓语动词要依照假设的时间而定。If the weather had been finer, the crops would be growing still better.If you had followed the teachers advice, you wouldnt be in the hospital. without和but for

7、构成虚拟。(but for要不是) Without sunlight, peoples life would be different from today. But for your help, I wouldnt have finished the work.But for water, it would be impossible to live in the desert.4. 含蓄虚拟条件句： 5. 虚实结合条件句。 She wasnt feeling very well. Otherwise she wouldnt have left the meeting so early. H

8、e telephoned me to inform me of your birthday, or I would have known nothing about it. I should have returned the book last week, but I was so busy that I forgot to do so. He could have done the work well, but he was so careless.真实语气 + otherwise/or + 虚拟语气虚拟语气 + but + 真实语气名词从句中虚拟语气的用法1）wish引导的宾语从句wis

9、h 现在：过去：未来：过去时 (did/were)过去完成时 (had done)would/could/might+V. shouldI wish I were a bird. (现在)I wish I hadnt made such a mistake. (过去)We wish our parents wouldnt punish us. (未来)2）主要是表示坚持，命令、要求、建议的虚拟语气。一个坚持：insist两个命令：order, command 三个建议：advise, suggest, propose四个要求：demand , require, request, desire

10、这些动词后面的宾语从句要使用虚拟语气用法。即从句中的动词 使用should + 动词原形，或者将should省略。我们建议Tom去休息一下。他坚决要求我到场。国王命令囚犯明天要实施死刑。他们要求我们派他们去那儿工作。We suggested that Tom (should) have a rest.He insisted that I (should) be present.The king ordered that the prisoners (should) be killed the next day.They requested that we (should) send them

11、to work there. 以上动词相应的名词构成的名词性从句（包括主语从句，表语从句和同位语从句）也要使用虚拟语气。从句中的动词形式一样。 order, advice, suggestion, proposal, demand, request, desireIts suggested that the plan be carried out.My demand is that she should come to see me once a week.All of us are for the advice that the chemical factory should be clos

12、ed down.2. 主语从句1）Its necessary /strange/ natural/ important + that - 从句中的动词要用虚拟，即(should)+动词原形1.It is important that we ( should ) master a foreign language.2. It is strange that she refuse to come to the party.3. Its necessary that we should study hard.2）Its a pity/ no wonder + that - 从句中的动词要用虚拟，表示

13、惊讶，遗憾，惋惜等感情色彩，即should+动词原形1.It is a pity that she should refuse to accept the offer.2. It is no wonder that John should have won the game.名词性从句中的虚拟语气 A、宾语从句中的虚拟语气在动词 suggest, order, demand, request, desire, insist, require, decide, determine, advise, recommend, deserve (值得提及) 后需用 should 型的虚拟语气。考题点击：

14、The teacher demanded that the work _ before 4 oclock. A. finished B. be finished C. should finish D. finish2. - What did the doctor say about your mothers illness? - He suggested that she _ an operation at once. A. must haveB. hadC. have D. had hadBCB、主语从句中的虚拟语气基本句型：It is suggested, ordered, propose

15、d, required, demanded, requested, insisted； + (should) do It is important, necessary, natural, desirable, strange, advisable, imperative It is a pity, a shame, no wonder 考题点击：1. Is it necessary that he _ the examination? A. takesB. has to takeC. must takeD. take2. It is strange that he _ you this. A

16、. would tell B. should tell C. had told D. has toldDBC、表语从句和同位语从句中的虚拟语气 在 suggestion, proposal, idea, plan, order, advice 等名词后面的表语从句、同位语从句中要用虚拟语气，即（should）+动词原形。My idea is that we (should) get more people to attend the conference.I make a proposal that we (should) hold a meeting next week. 考题点击：His

17、suggestion that you _ once more sounds reasonable. A. try B. tries C. must try D. can tryA状语从句中虚拟语气的用法 1）as if /as though现在：过去：过去时过去完成时He looks as if he were drunk.They talked as if they had been friends for years.She loves the baby as if it were her own son.It seems as if it were spring.I remember

18、the whole thing as if it had happened yesterday. 2）in case, for fear that, lest等引导的虚拟语气1. He took his raincoat with him in case it should rain.2. I will not make a noise for fear that I should disturb you. 常用虚拟语气的句型1. would rather that -现在：过去：未来：I would rather you paid me now. (现在)I would rather you

19、 had gone, too. (过去)Dont come. I would rather you came tomorrow. (未来)过去时过去时过去完成时2. If only (要是就好了) If only I knew his name!If only we had followed your advice!If only I could see him again!要是我们的父母能和我们住在一起就好了。要是我没错过火车就好了！If only our parents could live with us!If only I hadnt missed the train!3. Its h

20、igh time +that -should +V.过去时你该走了。我们该睡觉了。Its high time that you went.Its high time that you should go.Its time that we went to bed.Its time that we should go to bed. 经典题目1. If you _ him yesterday, you _ what to do now. asked would know had asked would have knownC. asked him know D. had asked would k

21、now2. What would have happened, _ as far as the river bank? A. Bob had walked farther B. if Bob should walk farther C. had Bob walked farther D. if Bob walked fartherCD3. How I wish every family _ a large house with a beautiful garden! (02 上海) A. hasB. hadC. will haveD. had had4. When a pencil is pa

22、rtly in a glass of water, it looks as if it _. (95 N) A. breaksB. has broken C. were broken D. had been brokenBC陈述语气与虚拟语气典型例题5) The volleyball match will be put off if it _. A.will rain B. rains C. rained D. is rained6) - Would you have called her up _ possible? - Yes, but I _ busy doing my homework. A. had it been was B. if it was were C. if it had been had been D. if it were would beB该句为陈述语气，因为主句用的是 will be put off。真实条件句主句为将来时，从句用一般现在时代将来时。问句中用的是虚拟语气，主句用 would have called