用来表示说的话不是事实,或者是不可能发生的情况,而是一种愿望,建议,假设的语气叫虚拟语气。Part1在非真实条件状语从句中If……,……。1.与现在事实相反:If+主语+________,主语+_________________________.IfI_____timenow,I_________withyou.(have,go)hadwouldgodid/werewould/should/could/mightdo2.与过去事实相反:If+主语+__________,主语+_____________________________.IfI_____________hard,I_______________intheexam.(notstudy,fail)hadnotstudiedwouldhavefailedhaddonewould/should/could/mighthavedone3.与将来事实相反:If主语+,主语+____________________________sth.1.IfI________________livelongenoughtohaveajob,I_______________tobeadoctor,helpingtheseAIDSpatients.(choose)2.Ifthere____________anotherflood,he______________hismistake.(realize)did/wereshoulddoweretodowould/should/could/mightdowereto/shouldwouldchooseshouldbemightrealize用法归纳:虚拟语气在条件状语从句中的用法主从句构成时态虚拟条件从句(if…)主句与现在事实相反的假设与过去事实相反的假设If+主语+did(be用were)主语+would/should/could/might+doIf+主语+haddone主语+would/should/could/mighthavedone主从句构成虚拟条件从句(if…)主句与将来情况相反的假设①If+主语+did②If+主语+weretodo③If+主语+shoulddo主语+would/should/could/mightdo时态Fillintheblankswithproperforms:1.IfI____(have)moretime,I___________(learn)anotherforeignlanguage.2.Ifhe______(be)herenow,he_______(show)ushowtoperformtheexperiment.3.IfI____________(receive)youre–mailthen,I___________________it.(answer)hadwouldlearnwerewouldshowhadreceivedwouldhaveansweredPractice4.Ifwe____________(notrely)onourownstrength,we________________(die)ofstarvation.hadn’treliedwouldhavedied5.IfI_______________________(tell)himtonight,he__________(be)greatlysurprised.6.I___________(ask)himtoringyouupifI____________________________(see)him.7.Ifyou_____________(get)backnextweek,we_________(go)campingtogether.told//weretotell//shouldtellwouldbewouldasksaw//shouldsee//weretoseegot//shouldget//weretotellwouldgo1.错综时间条件句1.Ifyouhadlistenedtome,youwouldn’tbeinsuchtroublenow.2.Ifthedoctorhadcomeintime,Amywouldstillbealive.3.Ifhehadreceivedsixmorevotes,hewouldbeourchairmannow.几种特殊情况2.If可能被省略,从句要倒装1.Weresheincharge(=Ifshewereincharge),shewoulddothingsdifferently.2.HadIknownyouraddress(=IfIhadknownyouraddress),Iwouldhavewrittenbefore.3.Shouldyouchangeyourmind(=Ifyoushouldchangeyourmind),noonewouldblameyou.3.不含条件从句,但有条件假设意义1.Withoutyourhelp,Icouldn’thaveachievedallthis.(Ifithadn’tbeenforyourhelp)2.Butforhispension,hewouldstarve.(Ifitwerenotforhispension)1.Withoutexaminations,studentstoday_______________(live)amuchhappierlife.2.Iwasbusyyesterday,or/otherwiseI____________________(come)tohelpyou.3.He__________________________(succeed),buthewastoocareless.Note:有时不用条件状语从句,而用介词短语,or,otherwise或but引导的并列句等来表示某种假设的情况,叫做含蓄条件句。wouldlivewouldhavecomecouldhavesucceeded,1Ifhehadnotlosthismoney,he__thepianolastweek.AwouldbuyBhadboughtCboughtDcouldhavebought2Ifweweretobe200yearsold,we__everything.AwillchangeBcanchangeCcouldchangeDchanged3Ifyou__thatfilmlastnight,youwouldnotbesosleepynow.Adidn’tseeBhaven’tseenCwouldn’tseenDhadn’tseen4Youarelate.Ifyou__alittleminutesearlier,you__him.Acame,wouldmeetBhadcome,wouldhavemet5Butforthestorm,we__apleasantjourney.AshouldhaveBhavehadCwouldhaveDshouldhavehad6___earlier,Icouldhavedonesomething.AHaveIbeeninformedBHadIbeeninformedCIhadbeeninformed7___todothework,Ishoulddoitsomeotherday.AIfwereIBIwereCWereIDWasI8Withoutthecomputer,theproblem__insuchashorttime.Acouldn’tbesolvedBwouldn’thavesolvedCcouldn’thavebeensolved9Withoutelectricity,humanlife__quitedifferenttoday.AwillbeBwouldbeCisWishInSubjunctivemoodPart2IwishIwereastallasyou.IwishIwereabutterfly.Iwisheverydayweremybirthday.IwishIhadn’teatensomuchwatermelon.1)asif/asthoughasif/asthough+pastsubjunctivePart3HetalksaboutRomeasthoughhehadbeentherehimself.在command,order,require,demand,request,insist,propose,suggest等动词后面的宾语从句,要用虚拟语气,其谓语动词用(should)+动词原形Wesuggestthatwe(should)haveameeting.Weinsistedthatthey(should)gowithus.记住:insist/suggest各有两种意思,要用不同的语气Insist表示“坚决要求”时,用虚拟形式,即should+do;Insist表示“坚称,坚持说”时,用陈述语气,表示事实。Suggest表示“建议”时,用虚拟形式。Suggest表示“表明、暗示”时,用陈述语气。1.Hesuggestedthatwe________itatonce.(do)2.Hispalefacesuggestedthathe_______ill.(be)3.Weinsistedthatthemeeting____________off.(put)4.Mikeinsistedthathe__________nothing.(steal)shoulddowasshouldbeputstole虚拟语气用于表语从句,同位语从句中。名词advice,order,demand,proposal,command,requirement,insistence,suggestion,request等的表语从句和同位语从句要用虚拟语气,其谓语动词的构成是(should)+动词原形Weallagreedtohissuggestionthatwe(should)gotoBeijingforoursummervocation..在主语从句中,谓语动词可以用虚拟语气表示惊奇,不相信,惋惜,理应如此等主观的情感,其谓语动词用(should)+动词原形。1.Itisimportantthatwe(should)cleantheroomeveryday.(necessary,natural,strange,etc.)2.Itisapitythatyou(should)besocareless.(ashame,nowonder,etc.)3.ItissuggestedthatMissLiu(should)giveaperformanceattheparty.(decided,ordered,requested,proposed,etc)Itis(high)timethat…did/shoulddo(should不可省)Itistimethatweleftschool.wouldratherthat…did/haddoneIwouldratherTomplayedwithme.---CanIsmokehere?---I’dratheryoudidn’t.Iwouldratherhepainteditblue.Iwouldratheryouhadgonethere..Ifonly意为:若是...那该多好啊;真希望...;只要,只要...就好IfonlyIhadarrivedintime!Ifonlyshedidn’tdrivesofast.IfonlyIwereabird.IfonlyIhadtakenhisadvice1.Ifit___________________________(rain)tomorrow,we___________________(not