高中语法之名词性从句课件.ppt

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1、GrammarTheNounClauses名词性从句在句子中起名词作用的句子叫名词从句(NounClauses）。名词从句的功能相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句(SubjectClause)、宾语从句(ObjectClause)、表语从句(PredicativeClause)和同位语从句(AppositiveClauseWhowillwinthematchisstillunknown.Iwanttoknowwhathehastoldyou.Thefactisthatwehavelostthegame.

2、Thenewsthatwewonthegameisexciting.主语从句宾语从句表语从句同位语从句SubjectClause(主语从句)ObjectClause(宾语从句)NounclausePredicativeClause(表语从句)_____theearthisroundistrue._______shewillcomeornotisstillaquestion._____youaredoingseemsverydifficult.______theywillstarthasnotbeendecidedyet.ThatWhetherWhatWhen主语从句引导主语从句的连词是不能

3、省略的。Thattheearthisroundistrue.That-从句作主语通常用it作先行词，而将that-从句置于句末，例如：Itistruethattheearthisround.It'sapitythatyoushouldhavetoleave.你非走不可真是件憾事。Attention2.表示“是否”意义时，一般用whether而不用if引导主语从句，Whethershewillcomeornotisstillaquestion.但如果有形式主语it引导时，既可用whether，也可用if。e.g.Itisstillaquestionifshewillcome.3.有时可用形

4、式主语it代替主语从句：e.g.Itisstillaquestionwhethershewillcome.Ithasnotbeendecidedyetwhentheywillstart.1.____youdon’tlikehimisnoneofmybusiness.A.WhatB.WhoC.ThatD.Whether2.____hesaidatthemeetingastonishedeverybodypresent.A.WhatB.ThatC.ThefactD.Thematter练一练！what与that在引导名词性从句时的区别:what引导名词性从句时在从句中充当句子成分,如主语,宾语,

5、表语,表示…的.而that则不然,它在句子中只起连接作用,没有意义.(1)Whatyousaidyesterdayisright.(2)Thattheearthgoesaroundthesuniswell-knowntoeverybody.3.____leavestheroomlastoughttoturnoffthelights.A.Anyone B.ThepersonC.Whoever D.Who4._____thesportsmeetwillbehelddependsontheweather.A.WheneverB.IfC.WhetherD.That5.___isafactthatE

6、nglishisbeingacceptedasaninternationallanguage.A.ThereB.ThisC.ThatD.It6.Whenandwhyhecamehere________yet.A.isnotknown　B.arenotknownC.hasnotknownD.havenotbee7.AfterYangLiweisucceededincirclingtheearth,________ourastronautsdesiretodoistowalkinspace.A.whereB.whatC.thatD.how8.ItworriedMaryalot_____she

7、wouldpassthecollegeentranceexamination.A.whetherB.ifC.thatD.how一个句子在复合句中充当宾语就叫宾语从句。Doyouknow______heis?I’mglad______youhavepassedtheexam.Idon’tknowwhether(if)youarewillingtohelpme.Itdependson________heiscomingor