名词性从句的讲解.ppt

名词性从句一、定义名词性从句的功能就是在句子中充当名词。名词性从句nounclause三、从句基本用法2、宾语从句3、表语从句4、同位语从句四、使用名词性从句应该注意的问题3、that的省略问题9、定语从句与同位语从句的区别Objectclause(宾语从句)1)老师教导我们要志向崇高。Theteachertaughtusthatweshouldaimhigh.2)你是否能成功将取决于你做什么和怎么做。Yoursuccesswilldependonwhatyoudoandhowyoudoit.3)他是否能来帮助我们，我感到怀疑。Idoubtwhether/ifhewillcometoourhelp.4)Whetherhewillacceptyouroffer,Idon’tknow.(不用if)1.Thefactis_____shedoesn’tlikepopmusic.2.Mytroubleis_____Idon’thaveenoughexperience.3.Thequestionis_______hewillbepresentornot.4.Whattroubledhimwas________hecouldgetthemoney.5.Heisabsenttoday.It’s________heisseriouslyill.6.Itlooks________it’sgoingtorainagain.Subjectclause(主语从句)1.人生最重要的并非金钱。Whatisthemostimportantinlifeisn’tmoney.2.凡是想看这部电影的人可免费得到一张票。Whoeverwantstoseethefilmmaygetafreeticket.3.Thattheearthisroundisknowntoall.---Itisknowntoallthattheearthisround.4.Thatyoumissedthechanceisapity.----Itisapitythat…that无意义,后接一个完整的句子.Appositiveclause(同位语从句):后面跟同位语从句的名词有:fact,news,ideathought,question,remark等.1.Theidea______computerswillrecognizehumanvoicessurprisesmanypeople.2.Thepossibility______themajorityofthelabourforcewillworkathomeisoftendiscussed.3.Ihavenoidea______hehasgone.4.Theyarethinkingaboutthequestion_______theycouldsucceedinthecompetition.5.Pleasetellusthetruth______didthatforus.四、注意点一:同位语从句与定语从句的区别that的用法(1)定语从句中的that既代替先行词，同时在从句中作某个成分（主语或宾语），而同位语从句中的that是连接词，只起连接主句与从句的作用，不充当句中任何成分。(2)定语从句是形容词性的，其功能是修饰先行词，对先行词加以限定，描述定的性质或特征；同位语从句是名词性的，其功能是对名词进行补充说明。他告诉我的消息是汤姆明年将出国。1)ThenewsthathetoldmeisthatTomwouldgoabroadnextyear.（第一个that引导的从句是定语从句，that在从句中作宾语）汤姆将出国的消息是他讲的.2)ThenewsthatTomwouldgoabroadistoldbyhim.（同位语从句，that在句中不作任何成分）二: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1）充当句子成分（主、宾、表）；2）本身有词义。that1）只起连接作用；2）本身没有词义；3）不在从句中担任成分。1)_______yousaidyesterdayisright.(=Allthatyou…)2)______sheisstillaliveisapuzzle.注意点三:用whether不用if1)连接词紧挨着ornot时,用whether.Idon’tknowwhetherornothewillcome.2)主语从句，表语从句和同位语从句若需表达“是否”，只能用连词whether，不能用if。3)介词宾语从句只能用whether，不用if。4)whethertodo…Hehasn’tdecidedwhethertogo.5)discuss+whether从句四:that的省略问题3.除了他来自南方之外