[英語(yǔ)學(xué)習(xí)]虛擬語(yǔ)氣ppt課件

1、虛擬語(yǔ)氣虛擬語(yǔ)氣條件句中的條件句中的虛擬語(yǔ)氣虛擬語(yǔ)氣A真實(shí)條件句If a flood happened in the past, there was usually a great loss of life and property. B非真實(shí)條件句1 表示與如今現(xiàn)實(shí)相反的條件If I were you, I should go and try. If 過(guò)去式(were), would/should/ could/might do2表示與過(guò)去現(xiàn)實(shí)相反的條件 If I had known your telephone number yesterday, I would have telephon

2、ed you. If 過(guò)去完成式, would/should/ could/might have done 3 表示在未來(lái)不太能夠?qū)崿F(xiàn)的條件If he were here tomorrow, I would speak to him. If it should rain, the crops could be saved.If I were to do the work, I should do it in a different way. 過(guò)去式(were)If should do, would/should/ could/might do were to C省略if的條件句Were it

3、necessary, I might go without delay. = If it were necessary.Had you taken my advice, you wouldnt have failed in the exam. = If you had taken my advice.Should I have time, I would call on her. = If I should have time.D錯(cuò)綜條件句If you hadnt watched TV yesterday, you wouldnt be so sleepy now. 從句yesterday闡明

4、過(guò)去，主句now闡明如今 If they had left home early this morning, they would arrive in half an hour. 從句闡明過(guò)去，主句闡明未來(lái)。 If you hesitated this moment, you might suffer in the future. 從句闡明如今，主句闡明未來(lái) E含蓄條件句1條件暗含在短語(yǔ)中without; but for He would not get such a result without your help. (條件暗含在介詞短語(yǔ)without your help中)2條件可根據(jù)上下

5、文推理出Such mistakes could have been avoided. 條件能夠是if you had been more careful 假設(shè)他更加小心一點(diǎn)的話(huà) 3條件用其他方式來(lái)表示Suppose you were in my shoes, what would you do ?用suppose/supposing/providing等詞表示if 主語(yǔ)從句中主語(yǔ)從句中的虛擬語(yǔ)氣的虛擬語(yǔ)氣虛擬語(yǔ)氣1. It is 過(guò)去分詞thatIt is requested that weshouldget everything ready this evening 命令、建議、要求2. I

6、t is 描畫(huà)詞描畫(huà)詞that 表示建議或不滿(mǎn)、驚奇等心情。表示建議或不滿(mǎn)、驚奇等心情。essential，important，natural，necessary，possible，strange等。等。 It is necessary that he (should) learn a foreign language(should) + do賓語(yǔ)從句中賓語(yǔ)從句中的虛擬語(yǔ)氣的虛擬語(yǔ)氣I ordered we leave at once. 虛擬語(yǔ)氣1.表示要求、命令、建議、決議等意義的動(dòng)詞后，that從句用“(should)+ 動(dòng)詞原形的構(gòu)造一個(gè)堅(jiān)持 insist兩個(gè)命令 order comma

7、nd 三個(gè)建議 suggest advise propose四個(gè)要求 demand request require ask(should) His face suggested that he was ill.His doctor suggested that he should stay in hospital for several days.He insisted that he didnt kill the woman and that he should be set free.暗示,闡明建議堅(jiān)持說(shuō)堅(jiān)持要求insistedI wish I were a bird. I wish th

8、at I had seen her yesterday.I wish you would stay an hour longer. 2. Wish后的虛擬語(yǔ)氣如今 普經(jīng)過(guò)去時(shí) ( were/did )過(guò)去 過(guò)去完成時(shí) ( had done )未來(lái) 過(guò)去未來(lái)時(shí) ( would / could do )表語(yǔ)從句和同表語(yǔ)從句和同位語(yǔ)從句中的位語(yǔ)從句中的虛擬語(yǔ)氣虛擬語(yǔ)氣That was my suggestion that she start early tomorrow. His proposal was that they challenge the other classes to a frie

9、ndly competition. shouldshould虛擬語(yǔ)氣n. (建議、勸告、命令)+ be +that (should) do一個(gè)堅(jiān)持 insist兩個(gè)命令 order command 三個(gè)建議 suggest advise propose四個(gè)要求 demand request require desire一個(gè)堅(jiān)持一個(gè)堅(jiān)持 insistence兩個(gè)命令兩個(gè)命令 order command 三個(gè)建議三個(gè)建議 suggestion advice proposal三個(gè)要求三個(gè)要求 demand request requirement狀語(yǔ)從句中狀語(yǔ)從句中的虛擬語(yǔ)氣的虛擬語(yǔ)氣The teac

10、her treats the pupil as if he were her own child. I felt as though we had known each other for years. It looks as if it might rain. 方式狀語(yǔ)從句as if / though 后的虛擬語(yǔ)氣如今 普經(jīng)過(guò)去時(shí) ( were/did )過(guò)去 過(guò)去完成時(shí) ( had done )未來(lái) 過(guò)去未來(lái)時(shí) ( would / might could do )對(duì)比： He looks as if he is young. 他就是年輕He looks as if he were youn

11、g. 實(shí)踐上他不年輕目的狀語(yǔ)從句 Please remind me of it again tomorrow in case I (should) forget. She emphasized it again and again, lest he (should) forget. We had a meeting and talked the matter over face to face for fear that there should be any misunderstanding. in case lest should + 動(dòng)詞原形 for fear that定語(yǔ)從句中的定語(yǔ)從

12、句中的虛擬語(yǔ)氣虛擬語(yǔ)氣 It is time that we did something for the society. It is high time that we should do something for the society.It is (high) time (that) 主語(yǔ) should + 動(dòng)詞原形 過(guò)去式其他句型中其他句型中的虛擬語(yǔ)氣的虛擬語(yǔ)氣 A If only. If only he knew the answer. If only I could speak several foreign languages！If only you had told me t

13、he truth before. If only 如今 普經(jīng)過(guò)去時(shí) ( were/did )過(guò)去 過(guò)去完成時(shí) ( had done )未來(lái) 過(guò)去未來(lái)時(shí) ( would / could do )Bwould rather, would prefer, would sooner I would rather you left today. I would prefer he didnt stay here too long I would rather I hadnt seen that film yesterday. would rather, would prefer, would sooner如今 /未來(lái) 普經(jīng)過(guò)去時(shí) ( were/did )過(guò)去 過(guò)去完成時(shí) ( had done )would rathe