条件从句 虚拟语气在条件从句中的用法： 原则从句主句 与现在事实相反 与过去事实相反 与将来事实相反 be  were V.  过去式 Would/could/ should/might + V. had + p.p wereshould If I were you, I should choose to go. Would/could/ should/might + have+p.p. V.  过去式 were to +v. should +v. had comewould have met If you had come yesterday, you would have met the famous professor. wonwould If you won the game, we would have a feast. were tocouldn’t If it were to snow tomorrow, they couldn’t go. Would/could/ should/might + V.

Jack looked out of window, so he was scolded by Miss Li Kate wasn ’ t good at dancing, Peter was so upset. Jane refused to marry him.

1 2 3 If Jack hadn ’ t look out of window, he wouldn ’ t have been scolded by Miss Li. Kate wished she was good at dancing. If Jane had promised to marry Peter, Peter wouldn ’ t have been so upset. Jack wished he had not been scolded by Miss Li. Peter wished Jane would marry him.

原则从句 V. 的变化 与现在事实相反，或对将来 的主观愿望 与过去的事实相反 wish 虚拟语气在 wish 后的宾语从句中 的用法： were 过去式 be  were V.  过去式 had + p.p. knew I wish I knew the answer. (I don’t know it.) were I wish it were Summer holidays now. (it isn’t) hadn’t wasted I wish (that) I hadn’t wasted so much time. had caught He wishes he had caught the last bus.

a bunch of flowers Tom/Peter Upset marry cheer up a bunch of flowers

Tom: Tom: Hi, peter. Why do you look upset. What’s wrong? Peter: Peter: Jane refused to marry me. If she had accepted me, I would have been the happiest man. Tom:If I were you, I would send her a bunch of flowers. Tom: Cheer up, Peter! If I were you, I would send her a bunch of flowers. Peter: Peter: Oh, yes! That’s a good idea! Tom:May you succeed! Tom: May you succeed! Peter: Peter: Oh, Jane, Please marry me!

1.If I am you, I would go at once. 2.If you came here yesterday, you would have met him. 3.If they had studied hard, they could have done it easily now. 4.Our suggestion is that you will be there on time tomorrow. 5.She looks after the boy as if he is her son. 6.I ’ d rather you paid me now. 7.It is high time that we are going. 8.It’s natural that she does so. Decide the sentences “T/F”. If it is “F”, correct the mistakes: T F F F F F F F were had come could do should/ 去掉 will were should do

虚拟语气 从句与主句的动作发生的时间不 同。此时，需要按时间来确定虚拟 形式。 had takenwould do If he had taken my advice, he would do it much better now. 如果他听取我的建议，他就会干得好。

虚拟语气 这些动词后面接的宾语从句： 愿望 愿望 ( wish), 建议 建议 (suggest, advice, propose) 要求 要求 (demand, request, require, insist), 命令 命令 (order, command) 等。 (should) He insisted that I (should) wait for him until he came back.

定语从句 虚拟语气在定语从句中： were It is (high) time that we were going. left It is time that we left. should It is time that we should tell you. would rather 虚拟语气在 would rather 的从句中： told I’d rather you told the truth next time. paid I’d rather you paid me now. hadn’t done I’d rather she hadn’t done that. as if 虚拟语气在 as if 从句中： might/would It looks as if it might/would rain. were He looks as if he were an artist. had studied He speaks English fluently as if he had studied in England.

虚拟语气 在句型 It is important necessary / strange / natural that.... ” 中， that 后面的从句 中的谓语动词用： should + 动词 1. 1.It ’ s necessary that we should have a walk now. 我们有必要出去散散步。 2.It ’ s important that we should take good care of the patient. 重要的是我们要照顾好病人。

注意： if 条件句的倒装 were, should, had If 条件句中如有： were, should, had, 可以省略 if, 并使用倒装 Were  If I were a teacher, I would be...  Were I a teacher, I would be…. Had  If I had come here yesterday, I …  Had I come here yesterday, I…. Should  If it should snow tomorrow, they…  Should it snow tomorrow, they…

注意：虚拟语气有时可不用 if 条件句 without/with/but for 2. 用 without/with/but for 等代替 without  There would be no living things on the earth without the sun.

1.If they were here, they would help us.  ______ ______ here, they would help us. 2.If he had not had your help, he would have been cheated.  ______ he _____ ______ your help, he would have be cheated  ________ your help, he would have been cheated.  _____ ______ your help, he would have been cheated.  If it ___ _________ for your help, he would have been cheated. II. change the sentence patterns: Were they Had not had Without But for had not been

If I were Invisible. I would touch all the people If I knew how to Fly. I would touch the sky If I had a million Dollars I would buy billions of flowers If I had done my homework Last Night. I would play all the time If I Were teacher for a Day I would teach you the way If I played in the NBA That would be great! ……… If I …….

If I had nothing I would not beg from anyone If I failed I would not complain anyone If I were given another chance I could finish the task …..

I wish I could see you now. if you lived closer, I would see you right now. I wish I owned a big house If we owned a big house you could live with us. I wish I were with you now if I didn't have to work I would be allowed ….. I wish…