公开课-名词性从句.ppt

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1、名词性从句volunteersThepicturestellusaboutv_________work.Thepicturestellusthatweshoulddosomevoluntarywork.It’soursocialresponsibility.Thatweshoulddosomevoluntarywork.“It”refersto…?Replace“it“!Thatweshoulddosomevoluntaryworkisoursocialresponsibility.宾语宾语从句充当主语subje

2、ct主语从句DevelopitIt’soursocialresponsibilitythatweshoulddosomevoluntarywork.形式主语Oursocialresponsibilityis_____weshoulddosomevoluntarywork.Oursocialresponsibility______weshoulddosomevoluntaryworkisnecessary.thatthat表语从句同位语从句oluntary名词性从句Nounclause名词性从句名词性从句在功能上相

3、当于名词主语{Hisjobisimportant.isimportant.表语Thisishisjob.Thisis{Whathedoeswhathedoeseveryday辨别下列名词性从句的类别：1.Howthebookwillselldependsonitsauthor.2.JohnsaidthathewasleavingforLondononWednesday.3.Thefactisthathehasnotbeenseenrecently.4.Thefactthathehasnotbeenseenrece

4、ntlydisturbseveryoneinhisoffice.5.HewilltalktousaboutwhathesawinU.S.6.ItisimpossiblethatIgoandattendthemeeting.主语从句宾语从句表语从句同位语从句宾语从句主语从句名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。引导名词性从句的连接词可分为三类：连接词：that,whether,if连接代词：what,whatever,who,whoever,whom,whose,which.连接副词：whe

5、n,where,how,why1。that只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义，宾语从句中可省略2。引导主语从句、表语从句和同位语从句,that不可省略。1.Thathewillsucceediscertain.2.Whetherhewillgothereisnotknown.3.Whathesaidisnottrue.4.Wherehehidthemoneyistobefoundout.5.Whoevercomesiswelcome.主语从句Underlinethesubject一．

6、主语从句主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。1.It作形式主语It作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。例如：Itisapitythatyoudidn’tgotoseethefilm.Itdoesn’tinterestmewhetheryousucceedornot.1Thathewillsucceediscertain2Whetherhewillgothereisnotknown3Whentheywillsta

7、rttheprojecthasnotbeendecidedyet1Itiscertainthathewillsucceed2Itisnotknownwhetherhewillgothere3Ithasnotbeendecidedyetwhentheywillstarttheproject改成it作形式主语结构2.用it作形式主语的结构(1)Itis＋名词＋从句Itisafactthat…事实是…Itisanhonorthat…非常荣幸Itiscommonknowledgethat…是常识(2)Itis＋形容词＋从

8、句Itisnaturalthat…很自然…Itisstrangethat…奇怪的是…(3)It＋不及物动词＋从句Itoccurstosbthat…某人突然想起……Itseemsthat…似乎…Ithappenedthat…碰巧…Itappearsthat…似乎…(4)Itis＋过去分词＋从句Itisreportedthat…据报道…Ithasbeenprovedthat…