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知识梳理23课堂练习4课堂小结5课后作业6CONTENTS目录典型例题课堂导入1什么是虚拟语气？虚拟语气Ｉ.概念:虚拟语气是动词的一种特殊形式，用来表示所说的话不是事实，或者是不可能发生或可能性很小的情况，而是一种愿望，建议，假设的语气叫虚拟语气。II.英语动词有三种语气陈述语气,祈使语气和虚拟语气.III.虚拟语气的特点：虚拟语气表达的是与客观现实相反的观念虚拟语气考点一、虚拟语气在if条件句中的运用①错综时间条件句②if省略句③含蓄条件虚拟句④半虚拟二、should类虚拟语气三、wish,asif/though四、虚拟语气固定句型Q:What’sthedifferencebetweenthetwosentences?IfIamfree,Iwillvisityou.IfIwereabird,Iwouldflyintothesky.→(非真实条件句---虚拟条件句)→(真实条件句)非真实条件句If条件从句主句1.与现在事实相反2.与过去事实相反3.与将来事实相反注:虚拟语气中助动词be一律用were，不用waswoulddosthshould/could/mightwouldhavedonesthshould/could/mightwoulddosthshould/could/mightdidbe用werehaddonedidshoulddosthweretodosth1.Idon’thaveacarandI’mnothappy.2.I’mnotabird.Ican’tfly.3.Hedoesn’ttakehisteacher’sadvice.Hedoesn’tpasstheexam.1.表示与现在事实相反if从句主句动词过去式did（be用were）would(should,could,might)＋动词原形IfI_______(have)acar,I___________(be)veryhappyIfI________(be)abird,I_________(fly)Ifhe________(take)histeacher’sadvice,he____________theexam.hadwouldbewerecouldflytookmightpass()1.Ifmyfather______herenow,he_____tellmewhattodo.A.were,wouldBwere,willCis,wouldDis,will()2.IfI________abee,I__________workmuchharder.Awere,wouldBwere,shallChad,willDhave,should()3.IfI_______muchmoney,I_________buyahouse.Ahave,willBhad,shouldChad,willDhave,should()4.He______learnmorequicklyifhe_______harder.Awill,workBwould,workedCwould,workDwill,workedAABBEx1.Ididn’tknowhertelephonenumberandIdidn’tcallher.2.Hedidn’tcometenminutesearlier.Sohedidn’tseethefamousfilmstar.3.Ididn’ttakeataxi,foritisfiveminutes’walk.2.表示与过去事实相反if从句主句had＋过去分词would(should,could,might)＋have＋doneIfIhertelephonenumber,Iher.Ifhetenminutesearlier,hethatfamousfilmstar.Ifit_________fiveminutes’walk,I________________ataxi.weren’twouldhavetakenhadknownwouldhavecalledhadcomecouldhavemet()1.Ifyou_________thedoctor’sadvice,youwouldhaverecognizedalready.A.followedBwouldfollowCfollowDhadfollowed()2.Ifmylawyer______herelastSaturday,he_________mefromgoing.Ahadbeen,wouldhavepreventedBhadbeen,wouldpreventCwere,wouldpreventDwere,wouldhaveprevented()3.I________ifshe________me.Awouldhaveoverslept,didn’tcallBwouldhaveoverslept,hadn’tcalledCoverslept,hadn'tcalledDwouldoverslept,didn’tcallDAB精选习题1.Youdidn’tletmedrive.Ifwe____inturn,you____sotired.A.drove…didn’tgetB.haddriven…wouldn’thavegotC.drove…wouldn’tgetD.weredriving…wouldn’tget2.Ifyou_____himyesterday,you_____whattodonow.A.asked…wouldknowB.hadasked…wouldhaveknownC.askedhim…knowD.hadasked…wouldknowBD1.I’mnottwentyyearsold,soIwon’ttakethecomputercourse.2.Iwon’tdoso.Ofcoursehewon’tfeelsurprised.•3----.Hesayshewillnotcome.-----Ifhe____________,what_______we___(do)?3.表示与将来事实相反if从句主句动词过去式did(be用were)should＋do或wereto＋dowould(should,could,might)＋动词原形IfItwentyyearsold,Ithecourseofcomputer.IfIso,shewouldfeelverysurprisedshouldcomewoulddowerewouldtakedidshoulddoweretodoEx.()1)It’sprobablethatitwon’traintomorrow.Butifit_________,Iwouldstillgotothepark.AshouldrainBwouldrainCrainsDhadrained()2.Idon’tthinkthatIshallfail.ButifI_______,Iwouldtryagain.AshouldfailBwouldfailCfailedDhadfailed()3.________tomorrow,whatshouldwedo?AIfitrainsB.ShoulditrainC.WoulditrainD.WereitrainingAAB•(1)IfIwereyou,Iwouldnotlethergo._________Iyou,Iwouldnotlethergo.•(2)Iftheyhadhelpedus,wewouldnothavefailedit.•________theyhelpedus,wewouldnothavefailedit.•(3)Iftheyshouldcometomorrow,wewouldfinishit.•_________theycometomorrow,wewouldfinishit.注“if”虚拟语气倒装形式的使用：如果“if”从句中含有“had，should或were”时,则可省略连词“if”，而把“had，should或were”移至主语之前构成倒装WereHadShould()1._______hecome,theproblemwouldbesettled.AWouldBShouldC.ShallD.IfB()2._____you________lastWednesday,youmightknowitwellnow.AWere,tocomeB.If,cameC.Had,comeD.Did,comeC()3.________here,hewouldattendthelecture.A.HadhebeenBIfhewasCWereheDWasheC三、虚拟语气假设条件句型注意点：1.错综时间条件句中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。（会有明显时间标志词）Ifyou____________(follow)myadvicejustnow,you____________(be)betternow.Ifyou_______________(study)hardbefore,you__________(be)acollegestudentnow.做题时注意：动词的形式根据它所表示的时间作出相应的调整一分为二，先找时间再判断时态。hadfollowedwouldbehadstudiedwouldbe1.Ifyou_____himyesterday,you_____whattodonow.A.asked…wouldknowB.hadasked…wouldhaveknownC.askedhim…knowD.hadasked…wouldknowD•2.含蓄条件虚拟句•句中含有with,without,butfor,or,otherwise,orelse等，虽然没有出现if，但表示的是if的含义。•(1)Withoutyourhelp,I__________________(pass)theexam.•Ifyouhadn'thelpedme,Iwouldn’thavepassedtheexam.•(2)Ididn'thaveyourtelephonenumber,otherwise/orI____________________youback.•IfIhadhadyournumber,Iwouldhavecalledyouback.wouldn’thavepassedwouldhavecalled十年来所有考过的含蓄条件句99%都会选择wouldhavedone2.Shedidn’tcomeyesterday,oryou_________him.AhadseenBmighthaveseenCweretoseeDwouldseeB3.Iwasillthatday,otherwiseI______thesportsmeet.A.wouldhavetakenpartinBtookpartinChadtakenpartinDwouldtakepartinAB•3.半虚拟（but）IyoumorehelpifIhadtime,butIwastoobusy.•半真半假连词but正悖逆Bobwouldhavehelpedusyesterday,buthe_______(be)busyWe__________________(study)lastnight,butwewenttothecinemainstead.waswouldhavestudied1.I________youamorevaluablepresentforyourbirthday,butIwasshortofmoneyatthattime.AmusthavebroughtBwouldhaveboughtChadboughtDwouldbuyB()2.Iwouldhaveinvitedher