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Leaningaims教学目标•一、深入了解，掌握虚拟语气•二、团结互助，积极主动，勇于展现自我英语动词有种语气陈述语气祈使语气虚拟语气用来表示说的话不是事实，或者是不太可能发生的情况，而是一种愿望，建议，假设的语气叫虚拟语气。三虚拟语气的考点1、条件句中的虚拟语气的用法；2、条件句中虚拟语气的倒装；3、名词性从句中虚拟语气的用法；4、几种特殊结构中虚拟语气的用法;5、虚拟语气时态的判定。if引导的虚拟条件句虚拟语气[例句]1.Ifyouhadcomeafewminutesearlier,youwouldhavemethim.要是你早来几分钟的话，你就能见到他了。(与过去事实相反)2.Ifitweresunnytomorrow,Iwouldcometoseeyou.明天要是天气好的话，我来看你。(与将来事实可能相反)3.IfIwereyou,Iwouldgoatonce.假如我是你的话，我会马上走。(与现在事实相反，事实上我不可能是你)虚拟语气在在条件从句中主从句的谓语形式时间If从句的谓语形式主句的谓语形式现在过去将来did/werehaddonewould/could/should/might+V.(原)would/could/should/might+have+p.p.1.did/were2.shoulddo3.weretodowould/could/should/might+V.(原)If+主+did(were),主+would/should/could/might+动词原形IfIwereyou,Iwouldtryitagain.1.如果我是你，我会再试一次。2.如果我有一百万美元，我会买下这架飞机。IfIhadonemilliondollars,Iwouldbuytheplane.与现在事实相反的虚拟条件句If+主+haddonesth,主+would/should/could/might+动词完成式（havedone）Ifhehadworkedhard,hewouldhavepassedtheexamination.1.如果他努力学的话，他就通过这次考试。IfIhadmarriedher,Iwouldhavebeenunhappy.2.要是当时我和她结了婚的话，那我是很不幸的。与过去事实相反的虚拟条件句名词性从句中的虚拟语气及几种虚拟语气特殊句型二、虚拟语气在名词从句中的运用（1）用于宾语从句１、wish后面的宾语从句中。一般用虚拟语气，表示一种不可能实现的愿望。其谓语动词形式为：表现在过去时表过去过去完成时表将来would,might,could＋动词原形Iwish(that)Iwereabird.Iwish(that)Ihadseenthefilmlastnight.Iwish(that)Iwould\couldgo.2.表示要求,命令,建议的虚拟语气一个坚持，两个命令，三个建议，四个要求1.insist2.order,command3.advise,suggest,propose(advice,suggestion,proposal)4.demand,require,request,desire这些词引导的名词性从句要使用虚拟语气。即从句中的动词使用should+动词原形，或者将should省略。3.wouldrather+从句动词用过去式或过去完成时Iwouldratheryoutoldmethetruth.IwouldratheryouhadgonetherelastSunday.4.asif(asthough)看起来常用虚拟形式，即表示与现在事实相反，用过去式；与过去事实相反用过去完成式(haddone).Hetreats/treatedtheboyasifhewerehisownson.Hespeaks/spokeasifhehadknownaboutitHomework1.FinishtheExercise1and2afterclass2.PreviewPeriod4非真实条件句中的条件从句有时不表出来，只暗含在上下文中，这种句子叫做含蓄条件句。含蓄条件句大体有三种情况:1.条件暗含在短语中。如：WhatwouldIhavedonewithoutyou?(条件暗含在分词短语withoutyou中)Itwouldbeeasiertodoitthisway.(条件暗含在不定式短语todoitthisway中)Butforyourhelpwecouldn’thavesucceededintheexperiment.(暗含条件是butforyourhelp)Thissamething,happeninginwartime,wouldleadtoadisaster.(条件暗含在分词短语happeninginwartime中)Hemusthavethestrengthofahippopotamus,orhenevercouldhavevanquishedthatgreatbeast.(暗含条件是连词or)Alone,hewouldhavebeenterrified.(暗含条件是alone)2.条件暗含在上下文中。如：Youmightstayhereforever.(可能暗含ifyouwantedto)Wewouldhavesucceeded.(可能暗含ifwehadkepttrying)Yourreputationwouldberuined.(可能暗含ifyoushouldacceptit)Iwouldappreciatealittleofyourtime.(可能暗含ifyouweresokindastogivemealittleofyourtime)3.在不少情况下，虚拟式已变成习惯说法，很难找出其暗含的条件。如：Youwouldn’tknow.你不会知道。Iwouldliketocome.我愿意来。Iwouldn’thavedreamedofit.这是我做梦也不会想到的。Hetoldthestoryinsuchminutedetailthathemighthimselfhavebeenaneye-witness.他将那事讲的非常仔细，简直就象他亲眼看见一样