资源描述：
《嘉兴海思外语小讲堂：托福考试语法要点(虚拟语气)》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、托福语法之虚拟语气什么是虚拟语气？虚拟语气就是表示说话人的愿望，假设，猜测或建议，而不表示客观存在的事实。1.虚拟语气用于条件状语从句条件状语从句主句现在动词过去式（be用were)would(should/could/might)+动词原形过去had+动词过去分词would(should/could/might)+havedone将来动词过去式wereto+动词原形should+动词原形would(should/could/might)+动词原形表现在Ifhewerefree,hewouldhelpus.Ifhestudieda
2、tthisschool,hewouldknowyouwell.TheSmiths_____(have)alovelygardeniftheydidsomeworkinit.IfIlearnttoswim,I___(feel)saferinthewater.Peter____(be)arichmantodayifhehadbeenmorecarefulinthepast.Iftheplanecrashed,we____(kill)练习IfI____(be)you,IshouldstudyEnglish.Ifhe___(have),h
3、ewouldattendthemeeting.Mr.Brown_____(buy)ahouseifhehadenoughmoney.表过去Ifyou____(come)yesterday,you___(meet)him.Ifthechildhadn'tbeensotired,he___(notfall)asleepsoquickly.It___(be)agoodmatchifithadn'trained.IfMother____(know)youwerecoming,she'dhavebakedsomecakes.表将来Ifhes
4、houldgotoQingHuaUniversity,hewouldmakefulluseofhistime.Ifheweretocomehere,hewouldtellusaboutit.练习Ifyou____(come)tommorow,wewouldhavethemeeting.Ifit____(rain)tomorrow,themeetingwouldbeputoff.IfIweretodothiswork,I_____(do)itinmyownway.if的省略当从句中有were,hadshould,would,可放句首
5、，省略if,用倒装形式Shouldheagreetogothere,wewouldsendhimthere.Wereshehere,shewouldagreewithus.Hadshemoremoney,shewoulddressfashionably.WereIinschoolagain,Iwouldworkharder.Hadshelistenedmorecarefully,shewouldn'thavemadesomanymistakes.2.一些特殊的虚拟条件句错综时间条件句（从句主句时间不一致）Ifyouhadtaken
6、themedicine,youwouldfeelbetternow.Ifhewereleaving,youwouldhaveheardaboutit.练习Ifhehadtakenmyadvice,he____(be)scientistnow.一些特殊的虚拟条件句虚拟条件句中可含有陈述语气的从句Ifitwerenotforthatfactthatyouareill,Iwouldaskyoutodothisrightnow.IfIhadknownthatheasnotathome,Iwouldnothavecalledonhim.一些
7、特殊的虚拟条件句含蓄条件句有时，虚拟由without，with,under,引导的介词短语Withoutair,therewouldbenolivingthings.Withoutyourhelp,Iwouldn'thavesucceeded.分词短语Thissamething,happeninginwartime,wouldamounttodiaster.Borninbettertimes,hewouldhavebeenascholar.不定式短语TohearhimspeakEnglish,onewouldtakehimfora
8、foreigner.连词but,butthat（若不是）,or或otherwise.主句（虚拟）+but/butthat+从句（陈述）主句（陈述）+or/otherwise+从句（虚拟）Itwouldbeamistakenottohelphim,b
