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1、__________________________________________________一.名词性从句名词性从句相当于名词,一个从句在整个句子中充当名词的作用,它可以作为主句的主语、表语、宾语和同位语。名词性从句主要分为四种:主语从句,表语从句,宾语从句,同位语从句。1.Whowillwinthematchisunknown.2.Iwanttoknowwhathehastoldyou.3.Thefactisthathehadwonthegame.4.Thenewsthatwewonthegameisexciting.(一
2、)宾语从句宾语从句在复合句中做及物动词的宾语,或用作介词和某些表示心理活动的形容词后作宾语,或是用it作为形式宾语代表宾语从句。例:1.Ithinkthatitwillbeofnouse.2.Itdependsonwhetherthebosswillagreetoyouornot.宾语从句的连接词:that,(常用且一般可省略)who,what,whether/if(是否)which,whoever,whatever,when,where,how,why.(连接词的选择要看从句的具体意思需要)例:1.Iknowthatyouarea
3、teacher.____________________________________________________________________________________________________2.Iwonderif/whetheryouareMrLi.3.DoyouknowwhatIwilldonext?4.Icanguesswhichteamwillwin.5.Idon’tknowwhenhewillcome.6.Idon’tknowwherehehasgone.7.Theydon’tknowhowthey
4、shouldhelpme.8.Pleasegivethebooktowhoeverlikesit.注意:①★宾语从句的语序一定是正常的语序,即陈述句的语序,先主语后谓语。Idon’tknowwhoareyou.(X)Idon’tknowwhoyouare.(∨)②★从句的时态需跟主句相配合。主句为一般现在时,从句可根据需要选择各种时态;主句为一般过去时时,从句通常用过去的时态。③★介词后的宾语从句,引导词一般不用which,if,that,但可用what(常用,常常是充当从句的主语,宾语或表语),how,whether等引导。④★t
5、hat在所有的名词性从句中都不充当成分,在宾语从句中that可以省略。____________________________________________________________________________________________________(二)主语从句1.Whosewatchwaslostisunknown.2.Whatweneedistime.3.Whomwemuststudyforisaquestionofgreatimportance.4.Whetherwewillgoforanoutingre
6、mainsunknown.5.Thathefinishedwritingthecompositionsurprisedusall.1.主语从句的连接词:1)从属连词(从句中不充当成分,只起连接作用):that,whether等.that引导主语从句只起引导作用,本身无意义,在主语从句中不充当任何成分,但不能省略。注意:已确定的事由that引导;没决定的事由whether引导.Thathewillcomeiscertain.Whetheritwillpleasethemisnoteasytosay.2)连接代词(在从句中充当主语,宾语
7、,或表语)who,what,which,whatever,whichever,whoeverWhatseemseasytosomepeopleseemsdifficulttoothers.____________________________________________________________________________________________________Whichsidewillwinisnotclear.Whoevercomesiswelcome.WhateverIhaveisyours.3)连接副
8、词when(从句中作时间状语)where(从句中作地点状语)how(从句中作方式状语)why(从句中作原因状语)Whyhediditremainsamystery.Whentheywillstartisnotknownyet.Howh
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