Grammar—theSubjunctiveMood虚拟语气Wemetinthisroom.DocometothemeetingnextFriday.IfIwereyou,Iwouldstudyhard.陈述语气祈使语气虚拟语气英语动词有种语气三用来表示谈话人的态度和看法虚拟语气不表示一个事实,而是表示一种假设情况.(愿望wish…，建议suggest…，假设if…)与现在相反与过去相反与将来相反If从句主句did（be用were)had+donedid（be用were)wereto+doshould+doWould＋do(should/could/might)Would/should/could/might+doWould＋have+done(should/could/might)1.If引导的条件状语从句（1）Ifhehadhurried,hecouldhavecaughtthetrain.IfIweretogoabroad,IwouldgotoAmerica.IfIwonthelotterynow,Iwouldbuyanexpensivecar.现在事实相反过去事实相反将来事实相反1).与现在情况相反的假设Ifeveryoneknewfirstaid,manyliveswouldbesaved.(If)did,woulddo(should/could/might)IfI________(be)you,Iwouldgotothecinematonight.Ifyousawthefilm,you__________(be)veryexcited.Ifthey________(come),wecouldgotheretogether.Ifwe_______(go)together,wewouldhaveagoodtime.IfI_______(have)enoughmoney,Icouldbuyanewhouse.werewouldbecamewenthad2).与过去情况相反的假设1)Ifthehurricanehadhappenedduringtheday-time,therewouldhavebeenmoredeaths.2)Ifyouhadstudiedhard,youwouldhavepassedtheexam.Ifyou__________(come)earlier,youwouldn’thavebeenlate.IfIhadtakenmoneywithmeyesterday,I__________________(repair)mywatch.IfI___________(repair)mywatch,Iwouldhavegotupearly.IfI_____________(getup)early,Iwouldn’thavebeenlate.hadcomewouldhaverepairedhadrepairedhadgotup3).与将来情况相反的假设：Ifyoushouldcometomorrow,Iwouldgofishingwithyou.Ifyouweretocometomorrow,…Ifyoucametomorrow,…shoulddo,(If)weretodo,woulddo(should/could/might)didIfitshouldraintomorrow,I___________(stay)athome.IfIweretostayathome,I____________(have)agoodrest.IfI_________________________________agoodrest,Icouldputmyheartintostudynextweek.wouldstaywouldhaveshouldhave/weretohave/had4)错综时间条件句：主句和从句的动作不是发生在同一时间，其动词形式要根据时间而定．1)IfIhadstudiedharder,Iwouldnotteachherenow.如果他当时听了我，现在就不会遇到麻烦．2)Ifhehadlistenedtome,hewouldnotbeinsuchtroublenow.3)Ifyouhadaskedhimyesterday,youwouldknowwhattodonow.4)Ifithadrainedlastnight,itwouldbeverycoldtoday.5)IfIwereyou,Iwouldhavetakenhisadvice.从句现在，主句过去Ifyouhadtoldmeinadvance,I_____himattheairport.A.wouldmeetB.wouldhadmetC.wouldhavemetD.wouldhavemeetIwouldhavegonetothemeetingifI___time.A.hadhadB.havehadC.hadD.wouldhavehadIfit______tomorrow,Iwouldn’tattendtheparty.A.rainB.rainsC.hadrainedD.weretorain注意:含有should的条件句,主句可以用一般现在时或一般将来时.例如:Ifthereshouldbeanotherflood,whatshallwedo?Askhertoleaveamessageifsheshouldcome.（2.）省略if的条件从句1.IfIweretomeethimtomorrow,Ishouldaskhimaboutit.2.Ifheshouldfailintheexperimentthistime,hewouldtryagain.WereItomeethimtomorrow,…Shouldhefailintheexperiment…HadIfollowedyouradvice,…3.IfIhadfollowedyouradvice,Iwouldn’thavemadesuchfoolishmistakes.4.Ifyouhadcomeafewminutesearlier,youwouldhavemethim.Hadyoucomeafew….2.2.名词性从句的虚拟语气名词性从句的虚拟语气这些动词后面接的宾语从句：一坚持insist二命令order,command三建议advise,suggest,propose五要求：demand,require,request,desire,ask,其后动词用should+do构成,should可以省略。1).1).宾语从句宾语从句WishWish引导引导与现在事实相反：与现在事实相反：过去时（过去时（werewere））与过去事实相反：与过去事实相反：had+had+过去分词过去分词与将来事实相反：与将来事实相反：would/could/might+Vwould/could/might+Ve.g.:I...
