《次课名词性从句》PPT课件.ppt

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1、NounClause名词性从句名词性从句包括主语从句、表语从句、宾语从句和同位语从句。它的功能相当于名词，引导名词性从句的引导词归纳起来可分为以下三类。名词性从句:主语从句,宾语从句,表语从句,同位语从句。1.________hehasdoneisnoneofyourbusiness.2.Mydoubtis________youcanfinishitintime.3.Idon’tknow_____youhavefinishedtheworkalone.4.Doyougetthenews____theprofessorwillcomehere?Whatwhetherth

2、atthatWhatpartdoestheunderlinedpartserveasineachsentence?Youareastudent.Tofindyourwaycanbeaproblem.Smokingisbadforyou.Whatshesaidisnotyetknown.Thatweshallbelateiscertain.Itiscertainthatweshallbelate.主语从句（NounClausesastheSubject）Definition:用作主语的从句叫主语从句，它是名词性从句之一。引导主语从句的连接词有：连词that,whethe

3、r；连接代词who,what和which；连接副词when,where,how和why。MakesentencesIt’scertain.we’llbelate.Ishecomingornot？Wedon’tknowWhatdoeshewanttotellus?Wedon’tknowWhenwillyoucomeback?Itdoesn’tmatter.It’scertainthatwewillbelate.Thatwe’llbelateiscertain.Wedon’tknowwhetherheiscomingornotWhetherheiscomingisnotk

4、nown.Wedon’tknowwhathewantstotellus.Whathewantstotellusisnotknown.Whenyouwillcomebackdoesn’tmatter.Itdoesn’tmatterwhenyouwillcomeback.连接词：that引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。Thatshelefthimcuthimtotheheart.Thathewillcomeiscertain.1）从属连词：that，whether等.由whether及其他连词引导的主语从句放在句首，句后都

5、可。Whetheritwillpleasethemisnoteasytosay.2)连接代词who，what，which,whatever,whichever,whoeverWhatseemseasytosomepeopleseemsdifficulttoothers.Whichsidewillwinisnotclear.3)连接副词when，where，how，why等。Whyhediditremainsamystery.Whentheywillstartisnotknownyet.Howhebecameagreatscientistisknowntousall.主

6、语从句可以前置，也可以后置。用it做形式主语，而把主语从句放在句末，常用下面几种句型。1.It+be+表语+主语从句表语：（名词，形容词，过去分词）位置ItissaidthatMr.GreenhasarrivedinBeijing.ItisreportedthatChinahassentanotherman-madeearthsatelliteintoorbit.2.It+不及物动词+主语从句Itseemed(happened,doesn’tmatter,hasturnedout)that…Ithappensthattheywereabsent.Itseemsthat

7、Aliceisnotcomingtothepartyatall.Itdoesn’tmatterwhethershewillcomeornot.Itmakesnodifferencewhereweshallhavethemeeting.3.It+及物动词（被动语态）+主语从句IthasbeendecidedthattheexhibitionwillnotopenonSundays.注意:1）主语从句在句首时，必须由连接词引导，不能省略这些连接词；但是如果用it做形式主语，而把主语从句放在句末时，从属连词that可以省略。误：Theyshouldlike