25/2/25Unit4主语从句课件（新人教必修3）25/2/25•1.Thisdependson_________theweatherisfine.•A.whichB.whetherC.ifD.that•2.CouldIspeakto____isinchargeofInternationalSalesplease?•A.whoB.whatCwhoeverD.whatever•3.Parentsaretaughttounderstand______importanteducationistotheirchildren’sfuture.•A.thatB.howC.suchD.soBCB25/2/25•4.Theroadiscoveredwithsnow.Ican’tunderstand______theyinsistongoingbymotor-bike.•AwhyBwhetherCwhenDhow•5.Thewayhediditwasdifferentwewereusedto.•A．inwhichB．inwhat•C．fromwhatD．fromwhich•6.Thepooryoungmanisreadytoaccept___________helphecanget.•A．whicheverB．however•C．whateverD．wheneverACC25/2/25•7.Idon’tknow________Mr.Greenwillcometoseeus.He’llhelpuswithourEnglish.•A.whyB.when•C.howD.where•8.—Becareful!Don’tbreakthebottles.Doyouhear______Isaid?David?—Yes,Mum•A.whatB.thatC.whyD.if•9.Areyouinterestedin_____?•A.howdidhedoitB.hedidithow•C.howhediditD.hehowdiditBAC25/2/25•10.Ifind_____importantthatwepracticeEnglisheveryday.•A.itB.thisC.thatD.what•11.—Whatdidyouparentsthinkaboutyourdecision?•—Theyalwaysletmedo________IthinkIshould.•A.whenB.thatC.howD.what•12.Pleaseremindme_________hesaidhewasgoing.Imaybeintimetoseehimoff.•A.whereB.whenC.howD.whatADB25/2/25主语从句在句中充当主语的从句叫做主语从句。25/2/251.连接词：1）从属连词：that，whether等.that引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。Thatshelefthimcuthimtotheheart.Thathewillcomeiscertain.25/2/252)连接代词who，what，which,whatever,whichever,whoeverWhatseemseasytosomepeopleseemsdifficulttoothers.Whichsidewillwinisnotclear.Whetheritwillpleasethemisnoteasytosay.25/2/253)连接副词when，where，how，why等Whyhediditremainsamystery.Whentheywillstartisnotknownyet.Howhebecameagreatscientistisknowntousall.25/2/25主语从句后置!为了避免主语冗长,句子头重脚轻,经常用it作形式主语,主语从句放在后面作真正的主语.例:Thatweshallbelateiscertain.--It’scertainthatweshallbelate.1.Thattheearthisroundisknowntoall.--2.Thatyoumissedthechanceisapity.--.ItisapitythatyoumissedthechanceIt’sknowntoallthattheearthisround.25/2/25It+be+形容词＋that从句Itisnecessarythat…有必要…Itisimportantthat….重要的是…Itisobviousthat……很明显……It+be+-ed分词＋that从句Itisbelievedthat…人们相信…Itisknowntous/allthat….众所周知…Ithasbeendecidedthat……已经决定……用it形式主语的that从句有以下四种不同的搭配：25/2/25It+be+名词＋that从句Itiscommonknowledgethat……是常识Itisasurprisethat….令人惊奇的是…Itisafactthat……事实是……It+不及物动词＋that从句Itappearsthat…似乎…Ithappensthat….碰巧…Itoccurredtomethat……我突然想起……25/2/25注意：1.Whatyouleftareonlyseveraloldbooks.2.Whatyousaidisofgreatimportance.3.Whetherhe’llcomehereisnotclear.1.“if”不能引导主语从句，应有“whether”引导。3.主语从句的“that”一般不能省。4.“what”引导主语从句时，谓语动词：1）常与其后的名词作表语一致2）根据句子的语境而定。4.主语从句需注意的问题2.主语从句中用陈述语序25/2/25MakesentencesIt’scertain.we’llbelate.Ishecomingornot？Wedon’tknowWhatdoeshewanttotellus?Wedon’tknowWhenwillyoucomeback?Itdoesn’tmatter.It’scertainthatwewillbelate.Thatwe’llbelateiscertain.Wedon’tknowwhetherheiscomingornotWhetherheiscomingisnotknown.Wedon’tknowwhathewantstotellus.Whathewantstotellusisnotknown.Whenyouwillcomebackdoesn’tmatter.Itdoesn’tmatterwhenyouwillcomeback.25/2/251.Whereshallwespendtheholidayisn’tdecided....
