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1、名词性从句1.种类2.宾语从句的时态。3.that什么情况下可以省略,什么情况下不可以省略。4.whether和if什么时候可以互换,什么时候不可以互换。5.如何区分同位语从句与定语从句。完成以下题目,并分别指出它们是什么从句1.______thebabycouldspeakmadehisparentsveryhappy.A.ThatB.WhatC.WhyD.If2.Iwonder______youwillgoshoppingorstayathome.A.thatB.ifC.whetherD.wha
2、t3.Thisis______hewasoftenlateforschool.A.whatB.thatC.whyD.whether4.Weallknowthetruth______theearth______aroundthesun.A.if;movedB.that;movesC.why;moveD.whether;move一.名词性从句的概念:一个句子在连接词的引导下,在句子中起名词作用的句子叫名词性从句。二.名词性从句的功能:相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语、介词宾语等
3、。Hisjobisimportant.(主语)Whathedoesisimportant.(主语)Thisishisjob.(表语)Thisiswhathedoeseveryday.(表语)Idon’tlikehisjob.(宾语)Idon’tlikewhathedoeseveryday.(宾语)Idon’tknowaboutthefactthatheisateacher.(同位语)Idon’tknowabouttheman,Mr.White.(同位语)得出结论:因此根据它在句中不同的语法功能,名词
4、从句又可分为四类,即:主语从句、宾语从句、表语从句和同位语从句。三.引导名词性从句的连接词:1、连接代词:who,whoever,whose,whom,whomever,what,which。有词义,在从句中担任成分,如主语、表语、宾语、或定语等。lIdon’tbelieve__________hehasachievedsofar.l__________breaksthelawshouldbepunished.2、连接副词:when,where,why,how。有词义,在从句中担任成分,作状语。10
5、l__________wewillhandintheprojectwillbediscussedlater.lParentsarethoughttounderstand__________importanteducationistotheirchildren’sfuture.lThereason__________hewasabsentwasthathewasill.3、连接词:that,whether,if,asif,asthough。that无词义,在从句中不担任成分,有时可省略;if(whet
6、her),asif虽有词义,但在从句中不担任成分。lIdon’tcareabout__________youhavemoneyornot.lTheproblemis__________Tomisabletoarriveontime.l__________themeetingwillbeheldhereisnotdecidedyet.lItlooks__________itisgoingtorain.lThetruthis__________hedidn’tcomefortheconcert.l___
7、_______theearthisroundistrue.四.名词性从句的类型:1.主语从句:在复合句中作主句的主语。连接词有that,whether;who,what,which;when,where,how,why等。如:l__________heisafamoussingerisknowntous.l__________hewillgotoAmericaisnotyetfixed.l__________she’scomingornotdoesn’tmattertoomuch.l________
8、__broketheglassyesterdayisnotclear.注意:1.为避免主语冗长,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。记住以下it作形式主语的句型:It’slikely/possible/important/necessary/clearthat…很可能/重要的是…/必要的是…/很清楚…It’ssaid/reportedthat…据说/据报道…Itseems/appears/happensthat…显然、明显、碰巧…It’s