2019年人教版必修3-unit-1--虚拟语气(共19张PPT-)

IfIwereaboy,Iwoulddrinkbeerwiththeguys.IfIwereagirl,IwouldgetoutofbedinthemorningTheSubjunctiveMood虚拟语气㈠语气的定义语气是动词的一种形式，它表明说话人对某一行为或事情的看法和态度。㈡语气的种类陈述语气祈使语气虚拟语气用于陈述事实、提出看法或问题用于表示请求、命令或警告用于表示假想或主观愿望真实条件句非真实条件句1.条件句中的虚拟语气IfIhavetime,Iwillhelpyouwiththiswork.IfHillaryhadwontheelection,shewouldhavemadehistroy.假设的情况是有可能发生的。假设的情况与事实相反，或不可能发生的。与现在事实相反与过去事实相反与将来事实相反非真实条件句之虚拟语气用法与现在事实相反Ifyouwerethespiderman,youcouldsavetheworld.Ifthepoorkidhadagreatdealofmoney,hewouldbeagreatdealhappy.IfNanningwereinthenorthernChina,weshouldseemuchsnowatpresent.时间if从句谓语动词主句谓语动词动词的过去式(be统一用were)与现在事实相反would(should,could,might)＋动词原形与过去事实相反IfIhadn'tbeenillyesterday,Imighthavecometoschool.Ifyouhadarrivedearlier，youwouldhavemetouroldfriend.时间if从句谓语动词主句谓语动词与过去事实相反had＋过去分词would(should,could,might)＋have＋过去分词Ifitrainedtomorrow,ourpicnicwouldbeputoff.Ifheshouldcomelatetomorrowmorning,wewouldleavewithouthim.Ifheweretogotomorrow,hemighttellyou.与将来事实相反时间if从句谓语动词主句谓语动词与将来事实相反过去式/should+动词原形/wereto+动词原形would(could,should,might)＋动词原形时间从句谓语动词主句谓语动词与现在事实相反与过去事实相反与将来事实相反动词的过去式(be统一用were)haddone过去式(be统一用were)/should+动词原形/wereto+动词原形wouldShouldCould+动词原形mightwouldShouldCould+havedonemightwouldShouldCould+动词原形might2.IshouldnothavelaughedifI______________(recognize)youwereserious.3.Ifthesun(rise)fromthewesttomorrow,I(believe)you.1.Ifthiskid(is)thesonofJackMa,he(live)agoodlife.Exercisewouldbelieverosehadrecognizedwerewouldlive2.If虚拟句的倒装在if引导的表示虚拟的条件状语从句中，如果含有助动词、情态动词、be或have，则Ifshewereyounger,shewoulddoit.→Weresheyounger,shewoulddoit.将had,should,were等词提到主语之前，即用倒装结构。可以省去连词if，1.Ifhehadtriedit,hecouldhavedoneit.2.Ifitshouldrainnextweek,thefarmerswouldhaveagoodharvest.→Hadhetriedit,hecouldhavedoneit.→Shoulditrainnextweek,thefarmerswouldhaveagoodharvest.1.____theexam,hewouldhaveattendacollege.A.IfhepassedB.HadhepassedC.WerehepassedD.Ifheshouldpass2.___fiveminutesearlier,youcouldhaveseenthemoff.A.IfyoushouldarriveB.IfyouarriveC.HadyouarrivedD.Shouldyouarriveexercise3.含蓄条件句有时候假设的情况不以if引导的条件从句形式表现出来，而是通过一个介词短语，连词或其他形式表示。Withoutyourhelp,wecouldnothavesucceeded.(＝Ifwehadnothadyourhelp)常用的词或短语有without,with,butfor(要不是),otherwise,or,but等。Butforelectricity,therewouldbenomodernindustry.(＝Iftherewerenoelectricity)Hefeltverytiredyesterday,or/otherwisehewouldhaveattendedtheparty.ButforthehelpofmyEnglishteacher,Iwouldnot______________(win)thefirstprizeintheEnglishWritingCompetition.havewonWelostourwayinthatsmallvillage,otherwisewe______________(visit)moreplacesofinterestyesterday.wouldhavevisitedExercise4.错综条件句错综时间虚拟条件句即条件从句与主句所指时间不一致，如从句指过去，而主句即指的是现在或将来，此时Ifithadrainedlastnight,thegroundwouldbewetnow.主句和从句的谓语动词应根据各自的时间而定。1.Ifmyfoot(notbe)injuredthen,I(join)intheschoolgamestomorrow.2.Iftomorrowthesubway(finish),I(be)veryexcited.hadnotbeenwouldjoinExercisewerefinishedwouldbeHomeworkFinishexerciseonpages67&68ofyourguidancebook.