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1、名词性从句1辨别下列名词性从句的类别:1.Howthebookwillselldependsonitsauthor.2.JohnsaidthathewasleavingforLondononWednesday.3.Thefactisthathehasnotbeenseenrecently.4.Thefactthathehasnotbeenseenrecentlydisturbseveryoneinhisoffice.5.HewilltalktousaboutwhathesawinU.S.6.ItisimpossiblethatIgoandattendthemeeting.主语从句宾语从
2、句表语从句同位语从句宾语从句主语从句2名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。引导名词性从句的连接词可分为三类:连接词:that,whether,if连接代词:what,whatever,who,whoever,whom,whose,which.连接副词:when,where,how,why1。that只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有词义,宾语从句中可省略2。不充当介宾3。引导主语从句、表语从句和同位语从句,that不可省略。3That/wh-clause+v+…主语从句S+be/link.v+that/wh-clause表语从句S+v
3、t+that/wh-clause宾语从句S+vi+prep+wh-clause宾语从句4一.主语从句主语从句是在复合句中充当主语的从句,通常放在主句谓语动词之前或由形式主语it代替,而本身放在句子末尾。1.It作形式主语It作形式主语代替主语从句,主要是为了平衡句子结构,主语从句的连接词没有变化。例如:Itisapitythatyoudidn’tgotoseethefilm.Itdoesn’tinterestmewhetheryousucceedornot.5what引导主语从句时在句时在从句中充当句子成分,如主语.宾语.表语,而that则不然。例如:1)______yousaidye
4、sterdayisright.2)______sheisstillaliveisagoodthing.Itisrightwhatyousaidyesterday.Itisagoodthingthatsheisstillalive.WhatThat2.what与that在引导主语从句时的区别6二.宾语从句宾语从句就是在复合句中作宾语的名词性从句,通常放在主句谓语动词(及物动词)或介词之后。1.作动词的宾语(1)由that引导的宾语从句(that通常可以省略),例如:Iheardthathejoinedthearmy.(2)由what,whether(if)引导的宾语从句,例如:Shedi
5、dnotknowwhathadhappened.Iwonderwhetheryoucanchangethisnoteforme.(3)动词+间接宾语+宾语从句。例如:Shetoldmethatshewouldacceptmyinvitation.2.作介词的宾语,例如:Oursuccessdependsuponhowwellwecancooperate(合作)withoneanother.73.作形容词的宾语,例如:Iamafraid(that)I’vemadeamistake.Iamsure(that)hewillwinthegame.4.it可以作为形式宾语it不仅可以作为形式主语
6、,还可以作为形式宾语而真正的宾语that从句则放在句尾,特别是在带复合宾语的句子中。例如:Wethoughtitgoodnewsthatthefoghadfinallygone.85.否定的转移若主句谓语动词为think,consider,suppose,believe,expect,fancy,guess,imagine等,其后的宾语从句若含有否定意义,一般要把否定词转移到主句谓语上,从句谓语用肯定式。例如:________________________________我认为这件衣服不适合你穿。Idon’tthinkthedressfitsyouwell9三.表语从句表语从句在复合
7、句中作表语的名词性从句,放在系动词之后,一般结构是“主语+连系动词+表语从句”。可以接表语从句的连系动词有be,look,remain,seem等。另外,常用的还有thereasonisthat…和Itisbecause等结构。例如:1)Thequestionis_________wecanmakegoodpreparationinsuchashorttime.2)Thisis____wecan’tgetthesupportofthepeopl