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1、名詞性從句1Whatkindofnounclausesarethey?1.Whatitwastobecomewasamystery.2.Idon’tknowwhowillhelpHenrytowinthebet.3.Histroubleisthathedoesn’tknowanybodyinLondon.4.Thefactthatshipscangotheresurprisesmanypeople.主語從句賓語從句表語從句同位語從句brainstorming(2m)2名詞性從句相當(dāng)于一個(gè)名詞作用的從句稱作名詞性從句，名詞性從句常在復(fù)合句中作主
2、語、賓語、表語和同位語。如：1.Whatitwastobecomewasamystery.2.Idon’tknowwhowillhelpHenrytowinthebet.3.Histroubleisthathedoesn’tknowanybodyinLondon.4.Thefactthatshipscangotheresurprisesmanypeople.3nounclausessubjectiveclause主語從句objectiveclause賓語從句predicativeclause表語從句appositiveclause同位語從句4
3、主語從句：做主語用的名詞性從句，引導(dǎo)主語從句的有連詞that，whether，連接代詞who，what，which，連接副詞when，where，how，why等。位置：1)位于句首．2)位于句尾，使用it做形式主語，而把主從放在句末．(注意：形式主語只能用it,不能使用this／that)常用下面幾種句型：1）It+be+表語（n./adj./done.）+that從句Itisafact(ashame/pity/goodnews/impossible/likely…)that/whether…It’sapitythatyouhavetogo
4、sosoon.Itisstilluncertainwhetherheiscomingornot.52）It+vi.+that從句Itseemed(happened,doesn’tmatter,hasturnedout)that…Itseemedcertainthathewouldwintheprize.Ithappensthattheywereabsent.3)It+bedone+that從句Itisknown/said/hoped/believed…Ithasbeendecidedthattheexhibitionwillnotopenon
5、Sundays.Does___matterifhecan’tfinishthejobontime?A.thisB.thatC.heD.it6連接詞：1）區(qū)分that與whether(if)that引導(dǎo)主從只起引導(dǎo)作用，無實(shí)際意義，在主從中不充當(dāng)任何成分，但不能省略。Thatshelefthimcuthimtotheheart.whether(if)盡管不充當(dāng)句子成分,但有”是否”意思,可加上”ornot”,語意不變.但whether和if也有不同用法,如放在句首引導(dǎo)主從,只能用whether.Whetheritwillpleasethemis
6、noteasytosay.7e.g.___fashiondiffersfromcountrytocountrymayreflecttheculturaldifferencesfromonaspect.WhatB.ThatC.ThisD.Which______we’llgocampingtomorrowdependsontheweather.A.IfB.WhetherC.ThatD.Where——————————————————————————————————————8It作形式主語和it引導(dǎo)強(qiáng)調(diào)句的比較It作形式主語代替主語從句，主要是為了平
7、衡句子結(jié)構(gòu)，主語從句的連接詞沒有變化。而it引導(dǎo)的強(qiáng)調(diào)句則是對句子某一部分進(jìn)行強(qiáng)調(diào)，無論強(qiáng)調(diào)的是什么成分，都可用連詞that。被強(qiáng)調(diào)部分指人時(shí)也可用who/whom。例如：Itisapitythatyoudidn’tgotoseethefilm.Itdoesn’tinterestmewhetheryousucceedornot.Itisinthemorningthatthemurdertookplace.ItisJohnthatbrokethewindow.9連接代詞who(m),whose,what,which,when,where,why
8、,how這類連接詞,除了引導(dǎo)主從外,在從句中還分別起pron/adv./adj.的作用,在從句中分別做主語賓語表語狀語Whatseemseasytosomep
