虚拟语气用法总结演示文稿

1、虚拟语气用法总结)演示文稿第一页，共三十二页。虚拟语气用法总结)第二页，共三十二页。概念：虚拟语气：表示说话人所说的不是事实，而是一种愿望、假设、或推测。第三页，共三十二页。一、虚拟语气在 if非真实条件句中虚拟条件从句(If)主 句与现在事实相反的假设与过去事实相反的假设与将来事实相反的假设 过去式 be -wereshould / would/could / might + dohad doneshould / would/ could / might + have done过去式（be-were）should dowere to doshould / would/could / migh

2、t + do第四页，共三十二页。If you had studied hard before, you would have passed the exam. （过去虚拟）1.如果我是你，我会接受他的建议（现在虚拟）2.如果明天下雨，我会待在家里。（将来虚拟）3.如果你以前好好学习， 你会通过考试的。If I were you, I would accept his advice.If it rained（should rain/were to rain ）tomorrow, I would stay at home.第五页，共三十二页。You didnt let me drive. If w

3、e _ in turn, you _ so tired.drove; didnt getdrove; wouldnt getwere driving; wouldnt gethad driven; wouldnt have got第六页，共三十二页。1. if从句中， 省略if，were，had，should可以放在句首，（用于倒装结构），否定词not不能放在前面。1.If I were you, I would accept his advice.2.If it should rain tomorrow, I would stay at home.3.If you had studied h

4、ard before, you would have passed the exam.Had you studied hard before,Were I you,Should it rain tomorrow,.第七页，共三十二页。_ it rain tomorrow, we would have to put off the visit to the Yang Pu Bridge.Were B. Should C.Would D. Will If it should rain tomorrow (省略if，用部分倒装）第八页，共三十二页。2.错综时间虚拟语气当从句与主句时间不一致时，动词的

5、形式要根据它所表示的时间作出相应的调整。If you _(follow)my advice just now, you _(be)better now.If you _(study)hard before, you _(be)a college student now.had followedwould behad studiedwould be第九页，共三十二页。If you _ with George earlier, you _ so angry now.talked; would not behad talked; would not bewould talk; would not b

6、ehad talked; would not have been第十页，共三十二页。If we had taken such effective measures much earlier, the river _ so seriously now.is not pollutedwould not be pollutedhad not been pollutedwould not have been polluted第十一页，共三十二页。3、含蓄虚拟语气在虚拟语气中，并不总是出现if引导的条件句，而通过其它手段来代替条件句。常用的有otherwise ，or ，without，but for（

7、倘没有，要不是）等。1.I was ill that day. Otherwise, I would have taken part in the sports meeting.=If I hadnt been ill that day, I would have taken part in the sports meeting.第十二页，共三十二页。2.He telephoned to inform me of your birthday, or I would have known nothing about it.3.Without / But for your help, we cou

8、ldnt have finished the work ahead of time.=If it had not been for your help, 第十三页，共三十二页。Without electricity, human being life _ quite different today.iswill bewould have beenwould be第十四页，共三十二页。But for his help, I _.should not have succeededhave not succeededdid not succeedhad not succeeded第十五页，共三十二页

9、。He hesitated for a moment before kicking the ball, otherwise he _ a goal.had scoredscoredwould scorewould have scored第十六页，共三十二页。It is strange that_.他居然会这样说，真是奇怪。 It is necessary that_. 有必要派他去北京。 二、虚拟语气在主语从句中的使用1，Its necessary/strange/natural/important/ impossible that 主语+(should)+动词原形he ( should )

10、say sohe be sent to Beijing第十七页，共三十二页。2.It is a pity /a shame/ a surprise/no wonder that 主语+(should)+V原形It is a great pity that_. 他居然会这样想，真是一件憾事。he ( should ) think so第十八页，共三十二页。3.It is/was suggested /ordered / demanded / proposed / （1234）+that +主语+(should)+V原形Its suggested that the plan should be c

11、arried out.It is suggested that_. 有人建议，晚会周六举行。 the party （should）beheld on Saturday 一个坚持 insisted 两道命令 ordered, commanded 三条建议 advised, suggested, proposed四点要求 demanded, required, requested, desired第十九页，共三十二页。It is required that you _ at six. will arrive B. arriveC. arrived D. would arrive2.It is st

12、range that the lazy boy _ pass the exam. A. has B. should C. would D. might 第二十页，共三十二页。3. It is necessary that our drinking water _ cleaner. A. should be made B. is made C. would be made D. was made第二十一页，共三十二页。三.虚拟语气在宾语从句中的使用1.在wish 引导的宾语从句中与现在事实相反 与过去事实相反 与将来事实相反 过去时（were）过去完成时、 had+donecould have

13、done Should/would/could/might+动词原形I wish (that)he_(visit) us tomorrow.I wish (that) he_(visit)us today.I wish he_(visit) us yesterday. would visitvisitedhad visited第二十二页，共三十二页。I wish I _ the meeting last week. A. could attend B. attended C. have attended D. had attended第二十三页，共三十二页。2.在表示坚持，要求,命令,建议的宾

14、语从句中一个坚持 _ 两个命令 _ 三个建议 _ 四个要求 _ +that 主语+（ should ）+ V原形The doctor suggested that he (should) try （try）to lose his weight.He insisted that we (should) tell （ tell）him the news. insist order, command advise, suggest, propose demand, require, request, desire 第二十四页，共三十二页。注意：suggest:表明，暗示 陈述语气 建议 虚拟语气He

15、r pale face suggested that she _（be)ill .Her friends suggested that she _(send) to hospital immediately.Insist：坚持说， 陈述语气 坚持要求 虚拟语气He insisted that he _(not steal) the money .He insisted that he _ (set) free.was(should) be senthadnt stolen(should) be set第二十五页，共三十二页。3.在 would rather宁愿 would prefer wou

16、ld sooner +宾语从句中 had rather would as soon与现在或将来事实相反 过去时 动词过去式/were与过去事实相反 过去完成时 had doneI would rather you _(come) here now.I would rather you _(come) here tomorrow.I would rather you _ (not tell)me the truth yesterday.camehadnt toldcame第二十六页，共三十二页。四、虚拟语气的其他用法1. as if / as though（好像）+从句(与wish一样) if

17、only(要是就好了）If only I _ (be)a birdIf only you _ （listen)to our advice!If only I _ （be）a superstar some day.He looks as if he _an artist.He talked about the accident as if he _it.werehad listenedwould bewerehad seen第二十七页，共三十二页。2.It is (high / about) time+ (that)从句 动词过去式 should（不可省略） + do该是某人做某事的时候了。It

18、 is high time that you got up/should get up.第二十八页，共三十二页。Im getting tired; its time we _ home. A. go B. are going C. went D. should be going第二十九页，共三十二页。3、在for fear that, in case, lest引导的从句中，若用虚拟语气时，从句谓语为：（should） + do。并且should能省略（for fear that，lest），in case不能省略She examined the door again for fear that