主语从句课件1.ppt

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1、主语从句概念：在复合句中充当主语的句子就是主语从句。例如：Shewillsucceed.Thatshewillsucceediscertain.主s表p谓v谓vi主s主语从句就是用一个句子来构成主句的主语主s谓vi简单句复合句主语从句的引导词有：1.用连词that2.用连词whether3.用连词代词who,whose,which,what等4.用连词副词how,when,where,why等例句：1.Thattheearthgoesaroundthesuniscertain.（注意在主语从句中t

2、hat不可以省略）2.Whetherwewillgocampingdependsontheweather.3.Whowastoblameisnotyetclear.4.Whatsurprisedusmostisthathecheatedintheexam.例句：5.Whichbookhelikemostisamystery.6.Whenhecanarriveisnotknownyet.7.Whyhewaslateisnotknownyet.Thatshewillsucceediscertain.I

3、tiscertainthatshewillsucceed.常用it作形式主语，把that引导的主语从句放在句末：可用it作形式主语，从句本身置于句末，常见句型有：it+be+形容词+that从句It’sclearthathewastellingthetruth.Itisprobablethatwe’llbealittlelate.It+be+名词词组+that从句Itisapitythatyoucan’tgowithus.根据缺什么补什么的原则完成以下句子。1hewillcomeornotisun

4、certain.2oneisbetterwillbedecidedbyyourself.3youdoinyoursparetimeshoulddonoharmtoothers.4theproblemwillbesolvedisstillunknown.5______hesetoffforBeijingisuncertain.6______youdidjustnowsatisfiedyourteacher.WhetherWhichWhateverHowWhenWhatThankyou!