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1、1.Hiswordsareture.Whathesaidisture.2.Thedogsensedsomethingdeliciousnearby.Thedogsensedthattherewassomethingdeliciousnearby.3.Thesearehiswords.Thesearewhathesaid.4.MyChineseteacher,Mr.Wang,isakindperson.Thenewsthattheplanehadcrashedmadeussad.（主语）主语从句宾语宾语从句表语表语从句同位语同位语从句名词性从句一、定义：名词性从句相当于名
2、词，可分别作主句的主语、表语、定语和同位语。因此，名词性从句可分为主语从句、表语从句、宾语从句和同位语从句。二、连接词：连词：that,whether,if,asif连接代词：who,whom,whose,what,which;连接副词：when,where,why,how;在从句中不充当成分有词义，在从句中担任主语，表语，定语或宾语。有词义，在从句中担任状语。三、用法：（1）主语从句——在复合句中用作主语的从句。ThatIwillwiniscertain.Whetherwegotogetherorseparatelydoesn’tmattermuch.Whatyoun
3、eedismoreexperience.Wherehehasgoneisnotknownyet.WhyhefailedtheEnglishexamwasn’tclear.Whateverwassaidheremustbekeptsecret.whatever,whoever…也可以引导If不能引导主语从句。1.主语从句：从句在句中充当主语成分1).Thathewillsucceediscertain.2)Whetherhewillgothereisnotknown.3)Whathesaidisnottrue.4)Wherehehidthemoneyistobefound
4、out.5)Whoevercomesiswelcome.6)It’scertainthathewillsucceed.7)Howwecanhelpthetwinswillbediscussedatthemeeting.8)Whenthey’llstarttheprojecthasnotbeendecidedyet.主语从句的引导词有连词that,whether;连接代词who,what,which;连接副词when,where,how,why等注意：当that引导主语从句时，习惯上多以it为形式主语，而把主语从句后移。e.g:It’sashamethatyoucan’t
5、cometotheparty.It’sstrangethathedidn’tcomeyesterday.可用it作形式主语的从句结构常有：It’sapity/shame/factthat...;It’snowonderthat..;(怪不得…)2.It’snatural/possible/strange….;3.It’snotknown/decidedthat….;It’ssaid/reportedthat….;4.Itseems/happenedthat….;那支队会赢得比赛还不知道。他们何时开会还不知道。他是否会到这里来是很重要的。真遗憾，你犯下这样愚蠢的错误。Wh
6、ichteamwillwinthematchisstillunknown.Whentheywillholdthemeetinghasn’tbeendecidedyet.Whetherhewillcomehereisveryimportant.It’sapitythatyouhavemadesuchafoolishmistake.2.宾语从句：从句在句中充当宾语成分（可以作谓语动词、介词、不定式等非谓语动词的宾语）连词：that,whether，if（that常可省略）who,what,which,whoever,whatever,whenwherewhyhow1).Th
7、eyknowthatthehabitwillkillthem.2).Italldependsonwhethertheywillsupportus.3)HeaskedhowmuchIpaidfortheviolin.4).Hemadeitcleartothepublicthathedidanimportantandnecessaryjob.5).Ifinditnecessarythatweshoulddothehomework.1).whether和if都可以引导宾语从句a..当whether后紧跟ornot时,不用if.eg:Idon’t
