学英语报社http://www.e-l-e.net.cn全新课标理念，优质课程资源●GrammarandUsageStep1:GeneralintroductionThissectionteachesfourothercasesthatneedtouseunrealconditionals.You’lllearntheformsofmixedunrealconditionals,wordsthatcanreplaceif-clausesinimpliedconditionalsandtheusageofwishorwouldratherinunrealconditionals.Step2:RevisionAswelearnedinthelastunit,whenasentenceistalkingaboutsomethingthatisnotrealorcurrentlyimpossible,theverbwillbeusedinaspecialformthatexpressesawish,possibility,condition,etc.Here’resomeexercisesforyou.Choosethebestanswers:1.Hadyoulistenedtothedoctor,you_____allrightnow.A.areB.wereC.wouldbeD.wouldhavebeen2._____anychangeaboutthedate,pleasetellmeimmediately.A.WilltherebeB.ShouldtherebeC.TherewillbeD.Thereshouldbe3._____today,hewouldgettherebyFriday.A.WouldheleaveB.WasheleavingC.WerehetoleaveD.Ifheleave4.Shoulditrain,thecrops_____.A.wouldbesavedB.wouldhavebeensavedC.willbesavedD.hadbeensaved5.You_____comeearlier.Thebusleftamomentago.A.wouldB.shouldhaveC.mayD.have6.Whatshouldwedoifit_____tomorrow?A.shouldsnowB.wouldsnowC.snowD.willsnow7.You_____suchaseriousmistakeifyouhadfollowedhisadvice.A.maynotmakeB.mightnotmakeC.shouldn’thavemadeD.mightnothavemade8.Ifitwerenotforthefactthatyou_____ill,Iwouldaskyoutodothisrightnow.A.wereB.hadbeenC.areD.shouldbeKeys1-5CBCAB6-8ADCStep3:Explanationandpractice1.Weshouldfirstpayattentiontotheformsofthepredicateverbsindifferenttenseswhenweusesentencesinunrealconditional.Let’srememberhowtoformunrealconditionalsofthepresent,pastorfuturetime.tenseIf--clausemainclausepresentdid(were)would/should/could/mightdopasthaddonewould/should/could/mighthavedonefuturedid，shoulddo，weretodowould/should/could/mightdo2.Weusemixedconditionalswhenthemainclauseandtheif-clauseareaboutdifferenttenses.e.g.1)Ifyouhadcomeandattendedthemeetingyesterday,youwouldknowwhatwearedoingnow.第1页共7页学英语报社http://www.e-l-e.net.cn全新课标理念，优质课程资源2)Ifyouhadfollowedmyadvice,youwouldnotbeintroublenow.Now,completePartA.Payattentiontothedifferenttensesintheif-clauseandthemainclause.AnswersA(1)hadnotstudied(2)wouldnotbe(3)hadstudied(4)wouldhave(5)knew(6)wouldbe(7)couldhelp(8)wouldnotbe3.ReadPoint2.Sometimeswecanuseotherwise,orandphrasesbeginningwithwith,withoutandbutfortoreplacesaif-clauseinimpliedconditionals.Payattentiontotheverbforminthemainclauses.4.Inadverbialclausesintroducedbyevenif,asif,asthoughandifonlywecanuseunrealconditionals.Inobjectclausesafterwishorwouldratherthesubjunctiveverbformsareoftenusedbecausethespeakerthinkswhatissaidintheclauseiscurrentlynottrueorpossible,orwillnothappen.Youshouldknowdifferentsubjunctiveverbformsareusedintheobjectclauseaccordingtothetimethattheeventhappenedorwillhappen.e.g.1)Iwishyouhadmethimyesterday.2)Withoutyourhelp,wecouldn’thavemadesuchprogressinmystudyinthepastfewyears.3)Ifonlyyouhadn’ttoldhimwhatIsaid!Everythingwouldhavebeenallright.4)Withoutelectroniccomputers,muchoftoday'sadvancedtechnologycouldn’thavebeenachieved.5.ReadthedialogueinPartBandfillineachblankwithaproperwordorphraseaccordingtothemeaningofthesentence.AnswersB(1)Without(2)otherwise/or(3)otherwise/or(4)wish(5)With(6)Without(7)evenif(8)without(9)Ifonly(10)asifForreference动词的语气——虚拟语气一、语气的定义和种类l、语气：语气是动词的一种形式，它表示说话人对某一行为或事情的看法和态度。2、语气的种类：(1)陈述语气:表示动作或状态是现实的、确定...
