名词性从句专练定义：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、宾语从句、表语从句和同位语从句。1引导名词性从句的连接词引导名词性从句的连接词可分为三类：连接连词：that,whether,if,asif,because不充当从句的任何成分）连接代词：what,whatever,who,whoever,whom,whose,which.连接副词：when,where,how,why2名词性从句分类：A:主语从句a:定义：b:连接连词：that,whether连接代词：what,whatever,who,whoever,whom,whose,which.连接副词：when,where,how,whyThatheisstillaliveissheerluck他还活着全靠运气。Thatshewaschosenmadeusveryhappy.注意事项：1）大部分连接词引导的主语从句都可以置于句末，用it充当形式主语。Itisnotimportantwhowillgo.Itisstillunknownwhichteamwillwinthematch2）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：Itisquiteclearthatthewholeprojectisdoomedtofailure.很清楚，整个计划注定要失败。It'sapitythatyoushouldhavetoleave.你非走不可真是件憾事。用it作形式主语的that-从句有以下四种不同的搭配关系：a.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……Itisknowntoallthat…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B:宾语从句a:定义：b:连接连词：that,whetherif连接代词：what,whatever,who,whoever,whom,whose,which.连接副词：when,where,how,whyJohnsaidthathewasleavingforLondononWednesday.Iamgladthatyouaresatisfiedwithyourjob注意事项：1时态与语序——2形式宾语it:3if与whether区别：1．Marywroteanarticleontheteamhadfailedtowinthegame.<2005全国卷1>A．whyB．whatC．whoD．that2．Thepooryoungmanisreadytoaccept___________helphecanget.<2005江西卷>A．whicheverB．howeverC．whateverD．whenever3．Itisgenerallyconsideredunwisetogiveachildheorshewants.<全国卷>A．howeverB．whateverC．whicheverD．wheneverC:表语从句a:定义：b:连接连词：that,whether,because,asif连接代词：what,whatever,who,whoever,whom,whose,which.连接副词：when,where,how,whyThefactisthathehasnotbeenseenrecently.事实是近来谁也没有见过他。D:同位语从句a:定义：特征：它一般跟在某些名词后，如:idea,news,word<消息>,hope,fact,promise,Belief,doubt,fear,discovery,chance,possibilityb:连接连词：that,whether,连接副词：when,where,how,whyWeheardthenewsthatourteamhadwonThefactthathehasnotbeenseenrecentlydisturbseveryoneinhisoffice.近来谁也没有见过他，这一事实令办公室所有的人不安。名词性从句专练1.Someoneisringingthedoorbell.Goandsee________.A.whoisheB.whoheisC.whoaretheyD.whoitis2.________shecouldn'tunderstandwas________fewerandfewerstudentswereinterestedinherlessons.A.What;whyB.That;whatC.What;becauseD.Why;that3.-Wehaven'theardfromJaneforalongtime.-________hashappenedtoher?A.DoyousupposethatB.WhatdoyousupposeC.DoyouthinkthatD.Whatyouthink4.Idon'tcare________shehasnomoney.Icare________sheishonestornot.A.if;whenB.whether;thatC.if;whetherD.what;if5.Wordcame________thePLAmanapproachedthechildslowlyandhelpedhimtosafety.A.sinceB.sothatC.thatD.why6.Thechildisalwayslying,sononeofuswillbelieve________hesays.A.whateverB.nomatterwhatC.howD.which7.Thefacttroublesmesomuch________Ihavebeenunabletop...
