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高中英语语法知识点之虚拟语气
1.掌握虚拟语气的基本用法;
2.掌握含蓄虚拟条件句的用法;
3.掌握主从句时间不一致的虚拟条件句的用法;
4.掌握名词性从句中的虚拟语气的用法;
5.掌握wish/if only/would rather从句中的虚拟语气的用法考向一if条件句中的虚拟语气if条件从句的谓语形式主句的谓语形式从句表示现在动词过去式(be的过去式should/would/could/miglit+动情况用were)词原形should/would/could/miglit+表示过去had+过去分词have+过去分词情况should+动词原形表示将一should/would/could/miglit+动动词过去式来情况词原形weie to4-动词原形研f Iwere you,I wouldtake anumbrella.如果我是你,我会带把伞would calleda taxigestc agif Haroldhadnt offered^/以A Cusa ridekonAC.如果昨天哈罗德没送我们回家,我们会打出租车回家的【巧学妙记】虚拟语气记忆口诀虚拟语气表愿望;句中三情况;If与现事实若相反;从过全主原;were would过从过分连;had过分键;Would have从过原;were toshould动原主将反Would考向二错综时间条件句的虚拟语气当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时,被称为错综时间条件句”,动词的形式要根据它所表示的时间做出相应的调整闻had followedthe doctorsadvice,f youyou would be betternow.如果你当时听医生建议的话,你现在就好多了考向三省略if的倒装句在条件句中可省略if,把were,had,should提到句首,变为倒装句式f Iwere atschool agaiinjI wouldstudy harder.明f WereI atschool again,I wouldstudy harder.如果我重回学校,我会更加努力学习明f Ljouhad cow\e easier,you wouldcatch thebus.f Hadyou comeearlier,you wouldcatch thebus.要是你来的再早点,你可能就赶上公交了f itshoiAld raiiatomorrow^wc wouldt go叫八f Shouldit raintomorrow,we wouldnot goclimbing.要是明天下雨,我们就不去爬山了考向四含蓄条件句中的虚拟语气有时候,虚拟条件不是通过if引导的条件句来表示,而是暗含在上下文中1用but forw汕out如果没有等来代替条件从句Without electricityhuman lifewould bequite different.=If therewere noelectricity,human lifewouldbequitedifferent.如果没有电,人类的生活将会有很大不同2用otherwise、oror elseeven though等表示与上文的情况相反,从而引出虚拟语气醺I lost your address.Otherwise,I wouldhave visited youlong before.=1lostyour address.If I hadnt lostyouraddress,I wouldhavevisitedyoulong before.你的地址我弄丢了,要不我早就去拜访你了3虚拟条件通过but暗示出来”He wouldk\ave givg moreMp.but hewas too尻sg.他本来会给你更多的帮助,但是他太忙了也就是说,如果那时他不忙,他可以给你更多的帮助句中buthe wastoo busy实际上暗示了一个虚拟条件--------------如果那时他不忙He wouldlose weight^but kceats too他本来可以减肥的,但是他吃得太多了也就是说,如果他吃得不多的话,他是可以减肥的句中的buthe eatstoo much实际上暗示了一个虚拟条件----------如果他吃得不多考向五名词性从句中的虚拟语气
1.用于表示建议、愿望、命令等动词后的宾语从句中常见的动词有hd,order,require,insist,suggest,propose,advise,request,urge,command,prefer,desire,recommend等宾语从句中的虚拟语气结构为should+动词原形,should可以省略/insiM X.:命令order^rommiind\三建议外Auggrat^advisetrecommrnd rrqurnt^rrquirr^aiskedrmand\加一个敦促I5Her Motkersuggested tk\at sheshould goai^d seethedoct「她妈妈建议她去看医生【特别提醒】★suggest表暗示,insist表”坚持认为时不用虚拟语气试比较:喇e insistedthat Ihad readhis letter.他坚持说我看过他的信喇e insistedthat Ishould readhis letter.他坚持要我看他的信Ke suggested that we should stayfor dinner.他建议我们留下吃饭况suggested thatyou hada secretunderstanding withhim.我觉得你与他心照不宣
2.用于主语从句中常见句型:It isimportant/necessary/urgent/essential/+that...It issbs order/desire/suggestion/advice/+that...・・・It issuggested/advised/demanded/requested/...+that从句谓语形式should+动词原形同t isordered that the armyshould getthere by4a.m.军队必须在上午4点之前到达那里迎t isnecessary thatweshouldclean theroom everyday.我们每天打扫房间是有必要的isft issuggestedthat the i^eetii^g shouldbe putoff tillMxtweek.人们建议会议推迟到下周
3.用于表语从句和同位语从句中,在Suggest八,proposal,order,plan,idea,request,advice等名词后的表语从句和同位语从句中要用虚拟语气,其构成是should+动词原形,should可以省略用is is thattheboy shooddgo with.他要求这个男孩和他一起去Our suggestionisthatyou shouldbe thefirst togo.我们的建议是你应该第一个去喇e issuedthe orderthatthetroops shouldwithdraw atonce.他命令部队马上撤退考向六wish宾语从句中的虚拟语气L表示与现在事实相反的愿望,构成主语+wish that+从句主语+动词过去式be一律用wereo司wish Iknew everythingin theworld.我希望我知道世界上的一切同wish thatthe experimentwere asuccess.我希望实验是成功的
2.表示与过去事实相反的愿望,构成主语+wish that+从句主语+would/could+have+过去分词或had+过去分词对wish thatyou hadcalled yesterday.我希望你昨天打来电话同didnt goto theparty,but Ido wishIhadbeen there.我没有去参加聚会,但我真希望我去过那儿
3.表示将来不大可能实现的愿望,构成主语+wish that+从句主语+would/should/could/might+动词原形同wish thathe couldtry again.我希望他能再试一次词wish thatsomeday Ishould liveon themoon.我希望有一天我能在月球上生活考向七其他句型中的虚拟语气X.would rather后的宾语从句中,表示愿望,意为宁愿;但愿”用一般过去时表示与现在或将来事实相反;用过去完成时表示与过去事实相反局would ratherhe hadpassed theex4m.我宁愿他通过了那次考试
2.在“It isabout/high time+that从句”中,谓语动词常用过去式或”Sko“/+动词原形n表示虚拟语气,注意should不可省略研ts hightii^e tkatwe devotedourselves toei^viroi^i^ei^tal protection.是我们致力于环境保护的时候了
3.as if,as though引导的表语从句和方式状语从句中常用虚拟语气,与现在事实相反用一般过去时;与过去事实相反用过去完成时八八.kkeg talked4d talkedas iftheg wouldMver i^eet他们谈啊谈好像永远不会再见面一样
4.if only引导的感叹句中,用虚拟语气表示愿望吐k atthe troublewe YeM.f!^ad takei^ourOI^I LJWCteachers advice!看看我们所处的困境,要是我们接受老师的建议就好了!。
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