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时间:2019-09-16
《新[人教版]选修八Unit1Grammar课件》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Unit1AlandofdiversityGrammar—TheNounClauses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、介词宾语等,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.The
2、factisthatwehavelostthegame.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)主语从句一个句子在复合句中充当主语叫主语从句。e.g.Thattheearthisroundistrue.Whethershewillcomeornotisstillaquestion.Whatyouaredoingseemsverydifficult.Whentheywillstarthasn
3、otbeendecidedyet.引导主语从句的连词是不能省略的。ThattheearthisroundistrueThat-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.Itisstilla
4、questionifshewillcomeornot.3.有时可用形式主语it代替主语从句:e.g.Itisstillaquestionwhethershewillcomeornot.Ithasnotbeendecidedyetwhentheywillstart.用it作形式主语的that-从句有以下四种不同的搭配关系:It+be+形容词+that-从句Itisnecessarythat…有必要……Itisimportantthat…重要的是……Itisobviousthat…很明显……b.It+be+-ed分词+that-从句Itisbelievedthat…人们相信……Itis
5、knowntoallthat…从所周知……Ithasbeendecidedthat…已决定……c.It+be+名词+that-从句Itiscommonknowledgethat………是常识Itisasurprisethat…令人惊奇的是……Itisafactthat…事实是……d.It+不及物动词+that-分句Itappearsthat…似乎……Ithappensthat…碰巧……Itoccurredtomethat…我突然想起……1.____youdon’tlikehimisnoneofmybusiness.A.WhatB.WhoC.ThatD.Whether2.____he
6、saidatthemeetingastonishedeverybodypresent.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,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
7、.A.Anyone B.ThepersonC.Whoever D.Who4._____thesportsmeetwillbehelddependsontheweather.A.WheneverB.IfC.WhetherD.That5.___isafactthatEnglishisbeingacceptedasaninternationallanguage.A.ThereB.ThisC.ThatD.It6.Whenandwhyheca
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