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Q:What’sthedifferencebetweenthetwosentences?IfIamfree,Iwillvisityou.IfIwereabird,Iwouldflyintothesky.（虚拟条件句）(真实条件句）1.英语动词有三种语气，陈述语气，祈使语气和虚拟语气。2.定义：用来表示说的话不是事实，或者是不可能发生或可能性比较小的情况，而是一种愿望，建议，假设的语气叫虚拟语气。一、虚拟语气定义IfIwonthelottery,Iwouldbuyanexpensivecar.(与现在事实相反）Ifhehadgotupearly,hewouldnothavebeenlateforschool.（与过去事实反）如果他早起，他就不会上学迟到。IfI________(learn)howtoswim,I__________________(be)trappedinthisisland.（与过去事实相反）hadlearntwouldnothavebeen一、一般条件句中的虚拟语气时间If条件句主句过去现在将来一、一般条件句中的虚拟语气时间If条件句主句过去haddonewouldshould+havedonesthcouldmight现在助动词be用were实义动词do用didwouldshould+dosthcouldmight将来did/wereshoulddoweretodowouldshould+dosthcouldMight虚拟语气1.If型与现在事实相反虚拟IfI____astallasYaoMing,I______becomeafamousbasketballplayer.were与现在事实相反虚拟：wouldIfI____alotofmoney,I_____buyavilla(别墅）.hadwould与现在事实相反虚拟：如果我是一名百万富翁，我会给浏阳一中建一座图书馆。如果我有足够的钱，我为每一位学生提供免费的三餐。如果我是超人，我会把钓鱼岛从日本手里抢回来。IfI______amillionaire,I_____buildalibraryforLiuyangNo.1MiddleSchool.IfI_____enoughmoney,I___________(supply)freefoodtothestudents.IfI______asuperman,I______seizeDiaoYuIslandsbackfromJapan.werewouldhadwouldsupplywerewouldGroupwork与过去事实相反虚拟：IfJackon____________boardtheTitanic,he__________________Rose.hadn’tbeenwouldn’thavemetIf从句的谓语形式主句的谓语形式过去haddonewould/could/should/might+havedone与过去事实相反虚拟：Ifjackhadn’tbeenonboardtheTitanic,hewouldn’thavemetRose.IfTitanic________(nothit)aniceberg,theunsinkableship_______________(notsink)intotheocean.hadn’thitwouldn’thavesunk与过去事实相反虚拟：Ifhe___________(drive)morecarefully,he__________________(nothave)thecaraccidentyesterday.haddrivenwouldnothavehad与过去事实相反虚拟：如果开学那天许翠霞老师不上街去吃饭，她就不会被车撞，如果她小心点，她就能躲过这场事故。如果司机开慢点，就能避免这次事故。如果她不出这次事故，他就可以快乐的上班了。IfMissXuCuixia____________(notgo)outtohavelunch,she_____________________(nothurt)byathree-wheeledcar.Ifshe__________(be)carefulwhencrossingthestreet,she_______________(escape)theaccident；andifthedriver______________(drive)slowly,theaccident______________________(avoid).Ifshe_____________(nothave)suchaterribleaccident,she___________(go)toworkhappilyeverydaynow.与过去事实相反虚拟：Groupworkhadn’tgonewouldn’thavebeenhurthadbeenwouldhaveescapedhaddrivencouldhavebeenavoidedhadn’thadcouldgoIftheGod________________________(give)meanotherchance，I_________(tell)thegirlthreewords,“Iloveyou.”IfI______(haveto)setatimelimittoourlove,It_________(be)10,000years!shouldgive/weretogive/gavewouldtellhadtowouldbe如果上天能够给我一个再来一次的机会，我会对那个女孩子说三个字：我爱你。如果非要在这份爱上加上一个期限，我希望是--一万年!大话西游与将来事实相反虚拟：______Iyou,Iwouldgowithhimtotheparty.A.WasB.HadbeenC.WillbeD.WereHadyoulistenedtothedoctor，you________better.A.areB.wereC.wouldbeD.wouldhavebeenIf型特例1：省略if的条件从句：总结：从句中有were,had或should时，省略if，而把它们放在句首。虚拟语气3.Ifyouhadnothelpedme，Ishouldhavefailed.2.Ifheshouldfailintheexperimentthistime,hewouldtryagain.Practice:1.IfIwereyou,Iwouldnotdothat.WereIyou,Iwouldnotdothat.Shouldhefailedintheexperimentthistime,hewouldtryagain.Hadyounothelpedme,Ishouldhavefailed.Ifyouhadstudiedhardbefore,youwouldbeacollegestudentnow.如果以前你努力学习的话，你现在就会是大学生了．If型特例2：错综时间条件句虚拟语气If型特例2：错综时间条件句定义：从句与主句的动作发生的时间不同。Iftheyhadstudiedhard,theycoulddoiteasilynow.与过去相反动词的形式要根据它所表示的时间作出相应的调整．Practice:Ifyouhadlistenedtothedoctor,you_____allrightnow.A.areB.wereC.wouldbeD.wouldhavebeen三个建议四个要求insistorder,commandadvise,suggest,proposedemand,require,request,ask其后的宾语从句及其同根名词引导的主语，表语，同位语从句中。虚拟语气Should+v型两个命令一个坚持1.在宾语从句，表语从句，同位语从句，主语从句中。这种用法的常用词有：Translation•他建议我们早点回家。Hesuggestedthatwe(should)gohomeearlier.Itwassuggestedthatwe(should)gohomeearlier.Hissuggestionwasthatwe(should)gohomeearlier.Hemadeansuggestionthatwe(should)gohomeearlier.虚拟语气宾语从句主语从句表语从句同位语从句TIPST.orF.Youpalefacesuggeststhatyou(should)beill.Yourpalefacesuggeststhatyouareill.Iinsistedthatyou(should)bewrong.Iinsistedthatyouwerewrong.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“坚持认为，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。FTFT虚拟语气虚拟语气类似用法的词有：necessary，strange，natural，apity,ashame,nowonder…Should+V型2.Itisimportant(necessary,strange,)that....TheSubjunctivemoodIf型Should+v型1.did…2.haddone…3.wereto/did/should…错综时间条件句(各自为准)Were,had,should提前，省略if1.一个坚持，两个命令，三个建议，四个要求。2.Itis（necessary，strange…）+that…insistsuggest1.判断是否虚拟2.判断虚拟类型3.判断虚拟时间Wish/Asif(though)3.类似if型虚拟语气Wouldrather/IfonlyButfor+n/Without+nIt’s(high)time+thatWish/Asif/（though）+从句现在:过去时（were）过去:过去完成时(haddone)未来:would/could/might+V.(原)类似if型（1）虚拟语气[例句]1.IwishIwere30yearsyounger.2.Iwish(that)youwouldgetagoodjob.3.Hewishedhehadn‘tdoneit.4.Hetreatsthelittlegirlasifshewereheowndaughter.类似if型wouldrather+that（从句）宁愿......Ifonly+要是......过去时过去完成时现在过去过去时过去完成时现在/将来过去类似if型（2）虚拟语气It’s(high)time+that过去时(were)/Should(不省)+V.你该走了。It’shightimethatyouwent.It’shightimethatyoushouldgo.我们该去睡觉了。It’stimethatwewenttobed.It’stimethatweshouldgotobed.类似if型（3）类似if型（4）虚拟语气butfor+n(要不是),without+n,otherwise(否则)，inthatcase，一些短语相当于虚拟条件从句（if…）,其后的句子与虚拟条件主句用法一致。+句子would/could/should/might+V.(原)would/could/should/might+havedone现在/将来过去1.Butforyourhelp,we(make)suchrapidprogress.没有你的帮助，我们是不会取得这么快的进展的。wouldnothavemade虚拟语气类似if型2.Withoutair,there_________(be)nolivingthings.如果没有空气，就不会有生物wouldbe3.Th