虛擬語氣精講上課 完整版PPT

1、Subjunctive Mood虛 擬 語 氣Grammar revision1.英語動詞有三種語氣， 陳述語氣，祈使語氣和虛擬語氣.2. 定義：表示說的話不是事實，而是一種愿望或建議，這種假設的語氣叫虛擬語氣。虛擬語氣定義本節(jié)課教學任務 1、一般條件句中(if引導）虛擬語 氣的用法；2、條件句中虛擬語氣的倒裝；3、錯綜條件虛擬語氣；4、名詞性從句中虛擬語氣的用法一、一般條件句中的虛擬語氣時 間 If 條件句主 句過去had donewould should +have done sthcouldmight現(xiàn)在助動詞 be用 were 實義動詞 do 用 did would should +

2、do sthcouldmight將來did / were should dowere to dowould should + do sthcouldmight1. If I had HIV, I would know because I would feel sick.2. If I were you, I would give AIDS patient a hug.3. If I had taken your advice, I wouldnt have made a mistake.4. If he had been there, it wouldnt have happened.與現(xiàn)在事

3、實不相符與過去事實不相符5. If it should rain tomorrow, they wouldnt go for an outing.6. I think we could do it, if we planned it properly and could borrow the tools.7. If we were to have three days off , we would enjoy a very happy life.與將來事實不相符If I were you, I _ buy the house right now. A. wont B. dont C. woul

4、dnt D. cant2. _more careful, his ship would not have sunk. A. If the captain were B. If the captain had been C. Should the captain be D. If the captain would have been 3. If he _ me tomorrow,I would let him know. A. should call B. should not have been able C. were not able D. are not able BCAPractic

5、e I: Multiple choice二、條件句中虛擬語氣的倒裝 假設條件虛擬倒裝: 條件從句中含有should， were， had 三個助動詞時，可以把if省略，并將這三個助動詞置于句首。If I were you, I would give it up.Were I you, I would give it up. If I had taken your advice, I would have succeeded.Had I taken your advice, I would have succeeded.If there should be a flood, what shoul

6、d we do?_a flood, what should we do?Shoul there bePractice II: Rewrite sentences & Multiple choice4.If I were you, I would take an umbrella._，I would take an umbrella.5.If Tom had taken my advice, he wouldnt have made such a mistake._，he wouldnt have made such a mistake.6. If he should come here tom

7、orrow, I might/would talk to him._ ，I might/would talk to him.Were I youHad Tom taken my advice Should he come here tomorrow7. _ I be free tomorrow, I could go with you.A. Could B. Should C. Might D. Must8. _ today, he would get there by Friday.A. Would he leave B. Was he leaving C. Were he to leave

8、 D. If he leave9. Should it rain, the crops _ .A. would be saved B. would have been saved C. will be saved D. had been saved10. _ your letter, I would have written back two days ago.A. If I received B. Should I receive C. Had I received D. If I could have receivedBCAC三、 錯綜條件虛擬語氣 由if條件句所引導的含有虛擬語氣的句子中

9、，條件從句謂語動詞虛擬發(fā)生的時間與主句的謂語動詞虛擬發(fā)生的時間不一致，叫做錯綜條件虛擬語氣。此時主句和從句的謂語動詞要依照各自虛擬的時間而定。If the weather had been finer, the crops would be growing still better.If you had followed the teachers advice, you wouldnt be in the hospital now.11. If you _ him yesterday, you _ what to do now. A.asked would know B. asked him

10、knowC.had asked would have knownD. had asked would know12.If we _ the car by turn, you_ so tired now.A. drove wouldnt be B. had driven wouldnt beC. were to drive were D. drove had been13. _ you _ hard three years ago, you _ in Peking University now.A. Had, studied, would be studyingB. Did, study, wo

11、uld study C. were, to study, studyD. Had, studied, study DBAPractice III: 四. 名詞性從句的虛擬語氣主要是表示命令、要求、建議的虛擬語氣。賓語從句。常見動詞：一堅持：insist 二命令：order, command 五建議：advise, suggest, propose，advocate, recommend六要求：demand , require, request，desire,urge,ask 這些動詞后面的賓語從句要使用虛擬語氣用法。即從句中的動詞 使用should do或should be done，shou

12、ld可省略。 2、以上動詞相應的名詞構(gòu)成的名詞性從句（包括主語從句，表語從句和同位語從句）也要使用虛擬語氣。從句中的動詞形式一樣，即：should insistence, command, order, advice, suggestion, proposal, demand, request, desire, requirementMy demand is that she should come to see me once a week.All of us are for the advice that the chemical factory should be closed down

13、.Its suggested/demanded/requested/insisted/ordered that the plan be carried out.14.The teacher demanded that the work _ before 4 oclock. A. finished B. be finished C. should finish D. finish15. - What did the doctor say about your mothers illness? - He suggested that she _ an operation at once. A. m

14、ust haveB. hadC. have D. had hadBC16. The young man insisted that he _ nothing wrong and _ free. A. did; set B. had done; should be set C. should do; be setD. had done; must be set17. The old professor gave orders that the experiment _before 6. A. was finished B. will finishC. be finished D. shall be finishedBCPractice IV: Multiple choice18. His silence at the meeting suggested that he _ to your plan. A. didnt agree B. hadnt agreed C. wouldnt agree D. not agree19. The situation required that