虛擬語氣 導(dǎo)學(xué)案-高三英語一輪復(fù)習(xí)

1、虛擬語氣1.虛擬語氣用于條件狀語從句 表示與現(xiàn)在事實(shí)相反的假設(shè)，條件狀語從句中的謂語動(dòng)詞用一般過去時(shí)(be動(dòng) 詞用were),而主句中的謂語動(dòng)詞用“would/should/could/might +動(dòng)詞原形”。If I were you, I would buy that house.If he had time, he should go with you.表示與過去的事實(shí)相反，條件狀語從句中的謂語動(dòng)詞用過去完成時(shí)，主句中 的謂語動(dòng)詞那么用“would/should/might/could+have+過去分詞”。If he had taken my advice, he would hav

2、e succeeded in passing the examination.(3)表示與將來事實(shí)相反，條件狀語從句中的謂語動(dòng)詞用一般過去時(shí)或 ashould/were to+動(dòng)詞原形，而主句中的謂語動(dòng)詞那么用wo uld/should/cou ld/might+動(dòng)詞原形”。If it were to rain tomorrow, the football match would be put off.(4)當(dāng)條件狀語從句表示的行為和主句表示的行為所發(fā)生的時(shí)間不一致時(shí)，動(dòng)詞 的形式要根據(jù)它所表示的時(shí)間作相應(yīng)調(diào)整。If they had worked hard, they would be ve

3、ry tired now.(從句說的是過去，主句指的是現(xiàn)在)Maybe if I(study) science, and not literature then, I would be able to give you more help.If I(have) time next week, I would go to the party.If I(be) you, I should go and see the dentist at once.If you had arrived at the station ten minutes earlier, you(catch) the train

4、.2.虛擬語氣用于名詞性從句虛擬語氣在賓語從句中的運(yùn)用?！?wish+賓語從句”I wish it were spring all the year round.I wish I had known the answer.I wish I could fly like a bird.在表示建議、要求、命令等動(dòng)詞后的賓語從句中，謂語動(dòng)詞用“should+動(dòng)詞 原形，should可以省略。常見的動(dòng)詞有：suggest, advise, propose, demand, require, insist, request, command, order 等。She suggested we (shou

5、ld) leave here at once.The doctor ordered she should be operated on.虛擬語氣在同位語從句和表語從句中的運(yùn)用。建議、要求、命令 advice, idea, order, demand, plan, proposal, suggestion, request (should) +動(dòng)詞原形”His suggestion that we (should) go to Shanghai is wonderful.My idea is that they (should) pay 100 dollars.虛擬語氣在主語從句中的運(yùn)用。表示驚

6、奇、不相信、理應(yīng)如此等 “(should +)動(dòng)詞原形”It is necessary (important, natural, strange)that we (should) clean the room every day.It was a pity (a shame, no wonder)that you (should) be so careless.It will be desired (suggested, decided, ordered, requested, proposed)that she (should) finish her homework this aftern

7、oon.It is a pity that you can t swim.練習(xí)一Where are the children? The dinner, s going to be completely ruined.一I wish they(be, not) always late.It is requested that Class Two(give) a performance at the English evening. He insisted that a deadline(set) for completing the task.My suggestion is that we(g

8、o) without delay. The doctor has given advice that the patient(give up) smoking.3.虛擬語氣在其他場(chǎng)合的運(yùn)用(l)He did it as if he were an expert.Even if she were here, she could not solve the problem.It is (high)time (that). 中，定語從句的謂語動(dòng)詞用一般過去時(shí)(be用were) 或“should +動(dòng)詞原形”It s time that I picked up my daughter.It s high time we were going.If only I were a pilot.If only I had taken his advice.(4)虛擬語氣在一些簡(jiǎn)單句中的運(yùn)用。It would be better for you not to stay up too late.Would you be kind enough to close the door?Would