高二英语虚拟语气课件 牛津英语 课件VIP免费

SubjunctiveMood虚拟语气英语动词一般可带有三种不同的语气(mood)：陈述语气、祈使语气和虚拟语气。不同的语气用动词不同的形式(有的还借助句法形式）来表示。一、陈述语气(TheIndicativeMood)用来陈述事实，有肯定、否定、疑问或感叹等形式。如：1.MyfatherandIdroveovertothevillagetoseeMrWu.2.Peopledon'thibernate.3.Whatastrange-lookingperson(heis)!4.Areyoujoking?二、祈使语气(TheImperativeMood)用来表示请求、命令或劝告等。如：1.Sitdown,please.2.Don'tsayitinChinese.SayitinEnglish,please.3.Letmehaveatry.4.Lethimgo.三、虚拟语气(TheSubjunctiveMood)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、建议或与事实相反的假设等。一般常用于正式的书面语中。该语法主要用于if条件状语从句。也可用于主语从句、表语从句、宾语从句等。通常有三种情况：①与过去事实相反。（过去虚拟）②与现在事实相反。（现在虚拟）③与将来事实可能相反。（将来虚拟）“后退一步法”①与过去事实相反，在从句中用过去完成时形式表示。②与现在事实相反，用一般过去时形式表示。③与将来事实可能相反，用过去将来时形式表示。1)IfIwereyou,Ishouldn'tdothat.2)Wewouldgowithyouifwehadtime.3)Wecouldaskhimifhewerehere.4)IfIknewhistelephonenumber,Iwouldringhimup.条件从句主句did（be动词一般用were）would(should,could,might)+doI.虚拟语气在主从复合句中的用法1.表示与现在事实相反，谓语动词的主要形式如下：1)Ifhehadseenyouyesterday,hewouldhaveaskedyouaboutit.2)Ifyouhadcomeearlier,youwould(might)havemethim.3)IwouldhavecalledyouifIhadknownyourphonenumber.条件从句主句had+donewould(might/could/should)+havedone2.表示与过去事实相反，谓语动词的主要形式如下1)Ifitshouldrain,thecropswouldbesaved.2)Ifitweretosnowtomorrow,theywouldnotgoout.3)Ifitrainedtomorrow,wewouldnotgoout.条件从句主句didshoulddoweretodoWould(could/might/should)+do3.表示与将来事实可能相反，谓语动词的主要形式如下：Note:省略连词if。在书面语中，如果虚拟条件句中有were,had或should，可以if把省略而把这几个词放到主语之前构成主谓倒装：例如：1.Shouldhecome(Ifheshouldcome),tellhimtoringmeup.2.WereIyou(IfIwereyou),Iwouldnotdoit.3.Hadhebeenmorecareful(Ifhehadbeenmorecareful),suchmistakescouldhavebeenavoided.1.Ifshehadworkedharder,she_____.(1986)A.wouldsucceedB.hadsucceededC.shouldsucceedD.wouldhavesucceeded3.Ifmylawyer_____herelastSaturday,he_____mefromgoing.A.hadbeen;wouldhavepreventedB.hadbeen;wouldpreventC.were;wouldpreventD.were;wouldhaveprevented5.Ifhe______,he_____thatfood.Luckilyhewassenttothehospitalimmediately.(1993)A.waswarned;wouldnottakeB.hadbeenwarned;wouldnothavetakenC.wouldbewarned;hadnottakenD.wouldhavebeenwarned;hadnottaken7.Ididn'tseeyoursisteratthemeeting.Ifshe_____,shewouldhavemetmybrother.(1994)A.hascomeB.didcomeC.cameD.hadcome9.Youdidn'tletmedrive.Ifwe_____inturn,you_____sotired.(1996)A.drove;didn'tgetB.drove;wouldn'tgetC.weredriving;wouldn'tgetD.haddriven;wouldn'thavegot2._____itraintomorrow,wewouldhavetoputoffthevisittotheYangpuBridge.(1994)A.WereB.ShouldC.WouldD.Will16._____Ibefreetomorrow,Icouldgowithyou.A.CouldB.ShouldC.MightD.Must19._____yourletter,Iwouldhavewrittenbacktwodaysago.A.IfIreceivedB.ShouldIreceivedC.HadIreceivedD.IfIcouldhavereceived21.Shoulditrain,thecrops_____.A.wouldbesavedB.wouldhavebeensavedC.willbesavedD.hadbeensaved27.IfI_____you,Iwouldtryagain.A.amB.wasC.wereD.be28._____,allthestudentswouldhear.A.IftheteacherhadspokenlouderB.IftheteacherwillspeaklouderC.HadtheteacherspokenlouderD.Iftheteacherspokelouder29.Whatshouldwedoifit_____tomorrow?A.shouldsnowB.wouldsnowC.snowD...