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1、 What can be inferred from the last sentence of the paragraph above? If everyone were to buy one soft-drink can each day and throw it away, the whole country would soon be covered with rubbish.If+主语主语+were to do sthshould do sthdid sth 主语主语+would/ could should/ might do sth What would have happened
2、if the captain had not been on board? the ship would have sunk with all on board if it had not beenIf+主语主语+ 主语主语+would/ could should/ might have done sthhad done sth一：含一：含IF条件句的虚拟语气条件句的虚拟语气If 条件句条件句 主主 句句pastnowfuturehad + done would / could /might / should + have donedid / were would / could /might
3、 / should + dodid / wereshould dowere to + do1.如果你早来5分钟，你就赶上这趟车了。If you _ here five minutes earlier，you _ the bus .2.如果我现在不忙，我就来帮你了。If I _ not busy, I _ you now.3.如果明天下雪了，我们怎么办？What _ we do if it _tomorrow?had gotwerewould helpshould were to snowWould have caughtIf I _busy last night, I _ to see the
4、 film with you .had not beenwould have goneIf he more carefully, he the car accident yesterday. would not have had had driven If he _ (not receive) the infected blood transfusion that day,had not receivedhe(not infect) with AIDS.could not have been infectedIf I _(know) your telephone number, I _ (te
5、lephone) you yesterday.had knownwould have telephoned二：虚拟语气特殊句型：二：虚拟语气特殊句型：1.Wish 的宾语从句现在：过去：未来：过去时（were）过去完成时would/could/might+V. should1.I wish I were a bird.（现在）（现在）2.I wish I hadnt made such a mistake.（过去）（过去）3.We wish our parents wouldnt punish us. （将来）（将来）2. Would rather that现在：过去：未来： I would
6、rather you paid me now. I would rather you had gone, too.Dont come. I would rather you came tomorrow.过去时过去时过去完成时3. as if /though + Clause 现在：过去：过去时过去完成时She loves the baby as if it were her own son.I remember the whole thing as if it had happened yesterday.后接虚拟语气，表示不可能或不真实的事或情形。4.Its (about/high) tim
7、e +that should +V.过去时我们该去睡觉了。Its time that we went to bed.Its time that we should go to bed. 5.表示要求，命令，建议的虚拟语气。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。一坚持一坚持二命令二命令三建议三建议四要求四要求insistorder, commandadvise, suggest, proposedemand , require, request, desire 注意：以上动词相应的名词构成的注意：以上动词相应的名词构成的
8、名词性从句包括主语从句，表语从名词性从句包括主语从句，表语从句和同位语也要使用虚拟语气。从句和同位语也要使用虚拟语气。从句中的动词形式一样。句中的动词形式一样。 order, advice, suggestion, order, advice, suggestion, proposal, demand, request, proposal, demand, request, desiredesire 注意：注意：insist 表示表示 “坚持说坚持说”时时,后后面从句不用虚拟语气面从句不用虚拟语气. 如如:She insisted that he had stolen her bike.Sug
9、gest 表示表示 “暗示暗示”, “表明表明”时时,后面从句中不用虚拟后面从句中不用虚拟. 如如:Her pale face suggests that she is ill . 6. without 和和 but for 构成的虚拟。构成的虚拟。Without sunlight, peoples life would be different from today.But for your help, I wouldnt have finished the work. 7. If only 引导的虚拟。要是引导的虚拟。要是就好了就好了 If only I knew his name!If
10、only we had followed your advice!If only I could see him again! 8. Its necessary /strange/ natural/ important + that Clause 从句中的动词要用虚拟，即从句中的动词要用虚拟，即（should）+动词原形动词原形It is important that we ( should ) master a foreign language.Its necessary that we should study hard.应该或竟然 What did Annie Sullivan mean
11、 to the deaf and blind girl? Catch the sentence with subjunctive mood and its meaning in the dialogue Dialogue one: What did Jeanne mean in her comment on Mathildes appearance? Dialogue two: Will John go to watch the football game? But you look as if you were ten years older than me. How I wished I
12、could go with you.Catch the sentence with subjunctive mood and its meaning in the dialogue Dialogue three: What does the father mean? Dialogue four: What did the mother mean? It is time you went to bed!I would rather you had taken a bus.错综时间条件句。即假设条件从句谓语动词发错综时间条件句。即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。主生的时
13、间与主句所假设的谓语动词不一致。主句和从句的谓语动词要根据各自的时间而定。句和从句的谓语动词要根据各自的时间而定。* 近几年各类考试中常见的试题类型：近几年各类考试中常见的试题类型： If the United States had built more homes for poor people in 1955, the housing problems now in some parts of this country_ so serious. A. wouldnt be B. will not have been C. wouldnt have been D. would have no
14、t beenIf you had followed my advice, you would be better now.If you had studied hard before, you would be a college student now, and you would graduate from a college in four years time. 假设条件虚拟倒装。假设条件虚拟倒装。 条件从句中有条件从句中有should， were， had三个助动词三个助动词, 可以把可以把 if 省略，并将这省略，并将这三个词提至句首。三个词提至句首。Had I time, I w
15、ould come.If I had time, I would come.Should it rain tomorrow, we would not go climbing.If it should rain tomorrow, we would not go climning. 含蓄虚拟条件句。句中有含蓄虚拟条件句。句中有without, or, otherwise , but for等词隐含某种假设。等词隐含某种假设。I lost your address, otherwise Iyou long before.A. had visited B. have visited C. woul
16、d have visited D. should visitWithout your help, we couldnt have succeeded in the experiment.But for the rain, we would have finished the work.常见的几种固定句式。如常见的几种固定句式。如If only,insist,suggest及及Its time/necessary/important that从句等等。从句等等。If only I to my parents advice!A. listening B. listen C. am listenin
17、g D. had listenedHis silence at the meeting suggested that he to your plan.A. shouldnt agree B. wouldnt agree C. hadnt agreed D. didnt agree The old professor gave orders that the experiment before 6. A. was finished B. will finish C. be finished D. shall be finished Its high time he home. A. goes B
18、. went C. will go D. is going to goEven if he _(be) here, he couldnt solve the problem.A. was B. were C. be D. is On Tuesday, Jonathon went to bed quite late the night before, so he got up too late. Therefore, he ran all the way to school. Just in front of the school, he suddenly caught sight of an
19、attractive girl. He missed his step, hit a tree on the roadside, fell onto the ground and broke his left leg. Now he is in the hospital, and was told that he had to stay in bed for at least four weeks. And he was certain to miss the school sports meeting next week. *Rewrite the story begin with : Now he regrets what he did. The accident would not have happened, if .