230班_虛擬語氣（50頁)ppt課件

1、2021年磁縣二中高二英語語法 虛擬語氣 吝麗平.教學(xué)目的：1.學(xué)習虛擬語氣在if條 件句中的用法2.掌握虛擬語氣的6種 特殊情況.教學(xué)重點：掌握虛擬語氣在if條件句中的用法.英語中的語氣分為_， _和_三類。陳說語氣祈使語氣虛擬語氣Step1 Presentation.1.China is a fast-developing country. 2.Make yourself free. 3.If I were a bird, I could fly in the air. 陳說語氣祈使語氣虛擬語氣.一、虛擬語氣(the Subjunctive Mood)一、概念表示說話人所說的不是現(xiàn)實，而是

2、一種假設(shè)、愿望或推測，它主要用于if條件狀語從句,也可用于其它從句。.1. 對過去情況的虛擬從句謂語：主句謂語：had + 動詞的過去分詞 would, should, could, might + have + 動詞的過去分詞.練習：1.If we_(have)enough rain last year,we _ (gain) a good harvest. had hadcould have gained.練習： 2.If you_(work) hard,you _ (pass)the final test last time.had workedwould have passed.2.對

3、如今情況的虛擬從句謂語：主句謂語：過去時would, should, could, might +動詞原形留意：在虛擬語氣中，只能用were，不能用was.練習：1.If I_(be)ten years younger,I_(start) all over again. would startwere.練習：2.If I _(have) enough money, I_ (buy)myself a DELL computer. hadwould buy.3.對未來情況的虛擬 從句謂語：主句謂語：3過去時would, should, could, might +動詞原形1should + 動詞原

4、形2 were to + 動詞原形.練習：If I_ (see)him tomorrow, I _(invite) him home. should see/were to see/sawwould invite.練習：2.If it_(be)fine tomorrow, I _(go)on a trip. would goshould be/were/were to be. 1.含蓄條件句 有時虛擬語氣的條件從句不用if引導(dǎo)，而用but for, without, if only, otherwise等詞，主句的謂語動詞和if一樣。二. 虛擬語氣的六種特殊情況.eg. Without you

5、r help, I couldnt have achieved all this. .練習But for water,we_(be)impossible to live in the desert. would be.2. 錯綜時間條件句 在錯綜條件句中，if從句謂語動詞發(fā)生的時間與主句所假設(shè)的謂語動詞不一致。主句和從句的謂語動詞要按照對應(yīng)的時間而定。.eg. If you had listened to me yesterday, you wouldnt be in such trouble now.練習If he _ (receive)six more votes last year, h

6、e _(be)our chairman now.had receivedwould be.3. 在表示命令、建議、要求等動詞后面的賓語從句中，用虛擬語氣，其謂語動詞用(should) +動詞原形一堅持insist二命令order， command三建議advise， suggest， propose、四要求demand， require， request， desire.記?。篿nsist / suggest 各有兩種意思，要用不同的語氣1).insist 表示“堅決要求時， 用虛擬語氣，即 should + do; 表示“堅稱，堅持說時，用 陳說語氣，表示現(xiàn)實，時態(tài)依 詳細情況而定。 . S

7、he insisted that she _ (be)right. I insisted that we _this to her 堅持說堅持要求was(should) tell. 2suggest 表示“建議時，用虛擬語氣。 表示“闡明、暗示時，用陳說語氣。 . The look on his face suggested that he _(be) unhappy. The teacher suggested that we _(clean) the blackboard after class.闡明建議was(should) clean .4、用在It is (high) time th

8、at句型中。It is (high) time that + 過去式或should+動詞原形(should不可省略)。.It is high time that the children _goto bed.should go/went .5. 條件狀語的倒裝假設(shè)從句中有were, had, should時,可以倒裝成：Were / Had / Should +主+其他if省略._, I would give AIDS patient a hug. If I were you, I would give AIDS patient a hug.Were I you._, he would hav

9、e seen the film.If he had been there yesterday, he would have seen the film.Had he been there yesterday._, we wouldnt go out. If it should snow tomorrow, we wouldnt go out.Should it snow tomorrow .6.虛擬語氣在其它構(gòu)造中的運用1wish + 賓語從句2由as if或as though引導(dǎo)的狀語從句 3 If only 假設(shè)是.那該多好啊對如今情況的虛擬，從句用過去時did/were。對未來情況的虛擬

10、，從句用would, could, might + 動詞原形。對過去情況的虛擬，從句用過去完成時。. I wish I _(go)abroad next year.2He appears as though he _ (be)an Italian.3) I wish I _(see)the football match yesterday.could gowerehad seen.4)If only I _arrive in time!5)If only she _ (come)tomorrow.had arrivedcould come.Step 2 Practice1.The rice _

11、 if you had been more careful. A. would not be burning B. would not burn C. would not have burnt D. would not burnt.2.If the flower had been watered, it _ now. A. wouldnt die B. is dead C. had been dead D. will not die.6. 從句中有should，were，had三個助動詞時，If 能夠被省略,從句要倒裝Were she in charge (= If she were in c

12、harge) , she would do things differently.Had I known your address (= If I had known your address) , I would have written before.Should you change your mind (= If you should change your mind), no one would blame you.3.I didnt see your sister at the meeting. If she _ she would have met my brother.has

13、come B. did come C. came D. had come.4._ for the free tickets, I would not have gone to the films so often. A. If it is not B. Were it not C. Had it not been D. If they have not.6. 從句中有should，were，had三個助動詞時，If 能夠被省略,從句要倒裝Were she in charge (= If she were in charge) , she would do things differently.

14、Had I known your address (= If I had known your address) , I would have written before.Should you change your mind (= If you should change your mind), no one would blame you.5.The guard there insisted that everybody _ the rules. A. obeys B. obey C. will obey D. would obey.6. It is high time you_ the

15、 bus. A. had caught B. caught C. will catch D. catch.7. Without electricity, human life _ quite different today. A. is B. will be C. would have been D. would be .8.If it _ tomorrow, they would not go there by bike. A. will rain B. rains C. would rain D. should rain.9._ it rain tomorrow, we would hav

16、e to put off the visit to the Yangpu Bridge. A. Were B. Should C. Would D. Will.10.If I _ you, I would not do it. A. am B. were C. shall be D. being.Step 3 Conclusion主從 句構(gòu) 成時態(tài)虛擬條件 從句(if )主 句對如今情況的虛擬對過去情況的虛擬If + 主語 + did (be用 were)主語 + would/ should/could/ might +do If + 主語 + had done主語 + would/ should/could/ might+ have done .主從 句構(gòu) 成虛擬條件從句(if)主 句 對未來情況的虛擬If + 主語 + should do If + 主語 +were to d