高中英语条件句虚拟语气语法详解课件

1、条件句中 英语动词有 种语气 陈述语气 祈使语气 虚拟语气用来表示说的话不是事实，或者是不太可能发生的情况，而是一种愿望，建议，假设的语气叫虚拟语气。三区别:If it rains tomorrow, the crops will be saved.If it rained tomorrow, the crops would be saved.陈述语气虚拟语气if引导的虚拟条件句主从句的谓语形式时间If 从句的谓语形式主句的谓语形式现在过去将来did / werehad donewould/could/should/might +V.(原)would/could/should/might+ha

2、ve+p.p.1. did / were2. should do3. were to dowould/could/should/might + V.(原)虚拟语气例句If you had come a few minutes earlier, you would have met him. 要是你早来几分钟的话，你就能见到他了。(与过去事实相反)2. If it were sunny tomorrow, I would come to see you. 明天要是天气好的话，我来看你。(与将来事实可能相反)3. If I were you, I would go at once. 假如我是你的话

3、，我会马上走。(与现在事实相反，事实上我不可能是你)虚拟语气在 在条件从句中混合条件句:有时主句和从句的动作发生在不同的时间，这时主、从句谓语动词的虚拟语气形式因时间不同而不同，这就叫混合条件句。If you your father advice,had takenYou in the traffic jam now.wouldnt have trappedIf +主 +had done sth, 主+would/should/could/might +动词完成式（have done）If he had worked hard, he would have passed the examina

4、tion.1.如果他努力学的话，他就通过这次考试。If I had married her, I would have been unhappy.2.要是当时我和她结了婚的话，那我是很不幸的。与过去事实相反的虚拟条件句如果我是你，我就听从他的建议。If I were you, I would have taken his advice.从句表示现在，主句表示过去如果你听我的话，现在就不会这么糟糕了。从句表示过去，主句表示现在如果这些天一直没下雨，我们现在可以进行工作了。从句表过去进行，主句表现在进行If you had listened to me, you might not be in s

5、uch trouble now.If it hadnt been raining those days, we should be going on with the works.If you had followed my advice, you would be able to finish the work now.如果你当时听了我的话，现在就能完成这份工作了。（从句说明过去，主句说明现在。）If I were you, I would have gone to her birthday party.如果我是你，我就去参加她的生日晚会了。（从句说明现在，主句说明过去。） If you h

6、adnt lent me some money, I couldnt have bought the new house and most likely I would be still living in the dangerous house now.假若你不借钱给我， 我不可能买下这幢新房，很可能现在还住在危房里。（从句说明过去，主句说明过去和现在。） 1. 如果过去天气好的话，现在庄稼长得更好了 If the weather _finer, the crops _still better. 2.如果你听了老师的建议的话，你现在就不会在医院里了 If you _ the teachers

7、 advice, you _ in the hospital. 3. 如果你身体状况好一些的话，我们本可能会让你去帮助他们工作的 If you in better health,we _ you to go there to help their work.had beencould have allowedwould be growinghad followedwouldnt bewereIf虚拟句的省略和倒装1. _the exam, he would have attend a college.A. If he passed B. Had he passedC. Were he pass

8、ed D. If he should pass2._five minutes earlier, you could have seen them off.A. If you should arrive B. If you arriveC. Had you arrived D. Should you arrive 含蓄条件句Eg. Without /But for your help, we would not have made such rapid progress.1.I was ill that day. 0therwise, I _ (take ) part in the sports

9、 meet.2.I _ (give) you more help, but I was too busy.3.A man who stopped drinking _ (be) dead in seven days.4.But for water, it _ (be) impossible to live in the desert.would have takenmight have given would be would be 1. 条件暗含在短语中。如： What would I have done without you? (条件暗含在分词短语without you中) It wou

10、ld be easier to do it this way. (条件暗含在不定式短语to do it this way 中) But for your help we couldnt have succeeded in the experiment. (暗含条件是but for your help)2. 条件暗含在上下文中。如： You might stay here forever. (可能暗含if you wanted to) We would have succeeded. (可能暗含if we had kept trying) Your reputation would be rui

11、ned. (可能暗含if you should accept it)I would appreciate a little of your time. (可能暗含if you were so kind as to give me a little of your time)虚拟语气Alan _ the party if he had gone to London. A. would have missed B. had missed C. would miss D. missed2. If I had known you were coming, I _ you at the airport.

12、 A. had met B. met C. would meet D. would have metMore ExercisesAD虚拟语气6. Simon looks as though he never _ a square meal(吃得饱), though his parents feed him very well. A. get B. getting C. got D. should get7. He is talking so much about America as if he _ there. A. had been B. were C. was D. been8. I _

13、 you some money, but I hadnt got any then. A. would lend B. would have lent C. could lend D. may have lentCAB_I you, I would go with him to the party. A. Was B. Had been C. Will be D. WereIf it_ tomorrow, I wouldnt attend the party. A. rain B. rains C. had rained D. were to rain I would have gone to

14、 the meeting if I _ time. A. had had B. have had C. had D. would have hadHad you listened to the doctor，you _ all right. A. areB. were C. would beD. would have beenWithout sunlight , or water or air , there _ no life on the earth . A will have B would be C can be D must be But for the snow , we _ ea

15、rlier . A will arrive B would have arrived C arrive D arrived 高考冲刺1. If he my advice, he wouldnt have lost his job.(2010,天津)A. followed B. should follow C. had followed D. would follow2. John went to the hospital alone. If he _ me about it, I would have gone with him.(2010,重庆) A. should tell B. tell

16、s C. told D. had told 3. If we _ the other road ,we might have arrived here in time for the meeting.(2010,陕西) A. take B. had taken C. took D. have taken4. Had I known about this computer program, a huge amount of time and energy .(2010,浙江)A. would have been savedB. had been saved C. will be savedD.

17、was saved5.He was very busy yesterday, otherwise he _ to the meeting. A. would come B. came C. would have come D. had come 6. Without electricity, human life _ quite different today. A. is B. will be C. would have been D. would be7.-Why didnt you come to the party yesterday? -I wouldhave, but an une

18、xpected visitor _ to see me. A. came B. would come C. had come D. was coming 虚拟语气6.在as if 从句中，常用虚拟形式，即表示与现在事实相反，用过去式；与过去事实相反用过去完成式 (had done).一、as if (as though) 连接表语从句 she looked as if she were made of ice. 她看起来似乎是冰做的 he looked as if he hadnt slept for two days.二、as if 连接让步状语从 句 She looked after the boy as if he were her own son. 她照顾这男孩就像自己的儿子一样。He speaks to us as if he had been there. 他给我们讲的好象他去过那儿。 虚拟语气在 在 as if 从句中 区别： He speaks English as if/ though he is from the USA.陈述语气He speaks English