名词性从句语法讲解

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1、我的梦想是我能进入一所重点大学。MydreamisthatIcanenterakeyuniversity.我能进入一所重点大学是我的梦想。ThatIcanenterakeyuniversityismydream.IhaveadreamthatIcanenterakeyuniversity.我有一个梦想我能进入一所重点大学我总是梦想着我能进入一所重点大学。IalwaysdreamthatIcanenterakeyuniversity.NounClause多由that,wh-疑问词或whatever等关系

2、代词引导主语从句、宾语从句、表语从句、同位语从句，名词性从句Whetherhewillcomeornotisunknown.Idon’tknowwhetherhewillcomeornotThequestioniswhetherhewillcomeornot.Thequestionwhetherhewillcomeornotisnotsettled.引导名词性从句的三类关联词thatwhetherif(在从句中不做成分，只起连接作用)2.whatwhowhomwhichwhose(在从句中做主、表、宾

3、、定成分)3.whenwhywhenwhere(在从句中做状语)其它：Thathedidn’tcometoschoolisbecausehewasill.Shelooksasifshehasreallybeenthere.Thingsarenotastheyseemedtobe.二、连接词的选择（1）that与what（卷子名从1）引导名词性从句的三类关联词Thata.只起连接作用，不做成分b.一般不省，只再宾语从句中可省e.g1).Iknowthatyouareconcernedaboutyours

4、on’ssafety.2).______hehassetouttoprepareforthecomingexamsissatisfying.isThatItissatisfying____hehassetouttoprepareforthecomingexams2).______hehassetouttoprepareforthecomingexamsissatisfying.That(1)主语从句在句子中充当主语，句子的谓语动词用第三人称单数。(2)主语从句前的that不能省略，仅起连接作用，有时为

5、了保持句子平衡，that从句后置，而由it作形式主语。that1.Ican’timagine_____youcansewthispieceofclothwithoutaneedle.2.Thereasonforhisbeinglateis____hemissedthebusthismorning.3.Itworriedherabit____herhairwasturninggray.A.whileB.thatC.ifD.sothat/不填thatBWhat1在从句中作主，宾，表成分2可译成“---的东

6、西，话，事情，地方，时间，样子等”——“所----”1whathesaiddisappointedme.2Acomputercanonlydo_____youhaveinstructedittodo.3amoderncityhasbeensetupin_____wasawastelandtenyearsago.whatwhat1_____madetheschoolproudwas____morethan90%ofthestudentshadbeenadmittedtokeyuniversities.A

7、What;becauseBWhat;thatCThat;whatDthat;because2PeoplehaveheardwhatthePresidenthassaid;theyarewaitingtosee____hewilldo.AhowBwhatCwhenDthat3---Areyoustillthinkingabutyesterday’sgame?---Oh,that’s____.Awhatmakesmefeelexcited.BwhateverIfeelexcitedaboutCHowIfe

8、elaboutitDwhenIfeelexcited____iswaitingformeismybrother.Whowhether与if在名词性从句中的用法区别而whether可引导包括宾语从句在内的其他名词性从句。Whether/if表疑问，“是否”宾语从句中，whether常与ornot搭配，可以说whetherornot,而不说ifornot.whether可用在介词后，或带to不定式前，if则不可。If：只用于Vt宾语从句&不在句首的主语从句a