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1、表语从句表语从句的定义Thequestioniswhowilldoit.Thequestionisdifficult.(表)表语从句(表)2.表语从句的构成主语+系动词+引导词+简单句Thisiswhyhedidit.Hiswishisthatshecouldloseweightsoon.3.表语从句引导词的种类从属连词:连接代词:连接副词:that,whether,as,asifwho,whose,whom,what,whichwhen,where,why,how4.各类引导词的用法1)从属连词that,whether,as,asifThequestioniswhetherweshoulda
2、skthemforhelp.Thetroubleisthathehasneverdonetheworkbefore.Itlookedasifitwasgoingtorain.Helookedjustashehadlookedtenyearsbefore.小结:从属连词在表语从句中句子成分。不但当2)连接代词who,whose,what,whichThatmountainisnolongerwhatitusedtobe.Ireadaboutitinsomebookoranother,butwhatIdon’tknowiswhich(book)itis.Theproblemwaswhocouldd
3、othework.Theimportantthingiswhosenameshouldbeput onthetopofthelist.3)连接副词when,where,why,howThatiswhyhedidn’tcometothemeeting.Goandgetyourcoat.It'swhereyouleftit.Thatishowhewonthegame.MystrongestmemoryiswhenIattendedan Americanwedding.4).because引导的表语从句That'sbecausehedidn'tunderstandme.那是因为他没有理解我。(Tha
4、t'sbecause...强调原因)That'swhyhegotangrywithme.那正是他对我生气的原因。(That'swhy...强调结果)what引导的主语从句表示结果或名词reason作主语时,后面的表语从句表示原因时要用that引导,不用because。ThereasonwhyIwassadwasthathedidn'tunderstandme.我难过的原因是他没有理解我。Thereasonwhyshewaslatewas______hedidn’tcatchthebus.Shewaslate.That’s________shedidn’tcatchthebus.(强调原因)Sh
5、edidn’tcatchthebus.That’s______shewaslate.(强调结果)thatbecausewhy4、应注意的问题1)、注:if不能引导表语从句Myquestioniswhetherheleft(ornot).我的问题是他是否离开了。2)、that不可以省略Thefactisthatheleft.事实是他离开了。ThetruthisthatIdidn'tgothere.事实是我没去那儿。3).使用虚拟语气的表语从句在表示建议、劝告、命令含义的名词后的表语从句,谓语动词需用"should+动词原形"表示,should可省略。常见的词有:advice,suggestion
6、,order,proposal,plan,idea等。Mysuggestionisthatwe(should)startearlytomorrow.我的建议是我们明天一早就出发。4)、语序有疑问疑问词+陈述语序Myquestioniswholeft.我想问的是谁离开了。That'swhathewants.那是他想要的。Thisiswheretheyoncelived.这就是他们曾经住过的地方。1.Thequestionis________wewillhaveoursportsmeetnextweek.A.thatB.ifC.whenD.whether2.Thereasonwhyhefailed
7、is________hewastoocareless.A.becauseB.thatC.forD.becauseof3.Goandgetyourcoat.It’s________youleftitwhereB.thereC.therewhereD.wherethere4.Theproblemis_________totaketheplaceofTedA.whocanwegetB.whatwecan