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1、高中英语系列讲座（三）主语从句I.概述1.定义：用作主语的从句叫做主语从句。2.构成：关联词+简单句3.引导主语从句的关联词有三类：(1)that。Thattheywereintruthsisterswasclearfromthefacialresemblancebetweenthem.(2)whether。Whetherhe’llcomehereisn’tclear.(3)who,whom,whose,what,which,whoever,whatever,whichever以及where,when,ho
2、w,why。Whatshedidisnotyetknown.Howthishappenedisnotcleartoanyone.Whoevercomesiswelcome.Whereveryouareismyhome—myonlyhome.II.讲解1.主语从句能用it作形式上的主语。常以it作形式主语的句型有：A.It+be+形容词(obvious,true,natural,surprising,good,wonderful,funny,possible,likely,certain,probable,e
3、tc.)+that从句。Itiscertainthatshewilldowellinherexam.Itisprobablethathetoldhereverything.B.It+be+名词词组(nowonder,anhonour,agoodthing,apity,nosurprise,etc.)+that从句。It’sapitythatwecan’tgo.It’snosurprisethatourteamshouldhavewonthegame.C.It+be+过去分词(said,reported,th
4、ought,expected,decided,announced,arranged,etc.)+that从句。ItissaidthatMr.GreenhasarrivedinBeijing.ItisreportedthatChinahassentanotherman-madeearthsatelliteintoorbit.D.It+seem,happen等不及物动词及短语+that从句。ItseemsthatAliceisnotcomingtothepartyatall.Alice.Ithappenedth
5、atIwasoutthatday.E.It+doesn’tmatter(makesnodifference,etc.)+连接代词或连接副词引起的主语从句。Itdoesn’tmatterwhethershewillcomeornot.Itmakesnodifferencewhereweshallhavethemeeting.F.当that引导的主语从句出现在疑问句中时，要以it作形式主语，而把主语从句后置。Isittruethatthescientistwillgiveusalecturenextweek?D
6、oesitmattermuchthattheywillnotcometomorrow?G.当主语从句出现在感叹句中时，要以it作形式主语，而把主语从句后置。Howstrangeitisthatthechildrenaresoquiet!孩子们这么安静真奇怪！2．注意连接代词whoever,whatever,whichever等引导主语从句的含义Whoevercomeswillbewelcome.(whoever=anyonewho)Whateverhedidwasright.(whatever=thethi
7、ngthat)Whicheverofyoucomesinwillreceiveaprize.(whichever=anyoneofyouwho)III.巩固练习1.Ithasbeenproved______eatingvegetablesinchildhoodhelpstoprotectyouagainstseriousillnessesinlaterlife.A.ifB.becauseC.whenD.that2.Thelasttimewehadgreatfunwas______wewerevisiting
8、theWaterPark.A.whereB.howC.whenD.why3.______mattersmostinlearningEnglishisenoughpractice.A.WhatB.WhyC.WhereD.Which4.Thetraditionalviewis______wesleepbecauseourbrainis“programmed”tomakeusedoso.A.whenB.whyC.whe
