高中英语名词性从句考点归纳专题辅导.doc

高中英语名词性从句考点归纳一、考点综述名词性从句在句子中起名词的作用包括主语从句、宾语从句、表语从句和同位语从句分别在句中充当主语、宾语、表语和同位语。二、分类详解1.that引导的名词性从句that在名词性从句中不作任何成分所引导的名词性从句经常被it替代自己则“跑”到了句末。【真题回放】(1)Itisobvioustothestudentstheyshouldgetwellpreparedfortheirfuture.(2009天津)A.asB.whichC.whetherD.that析：D。句意：很明显对于这些学生而言他们应该为未来做好准备。it为形式主语真正的主语是后面的that引导的主语从句。(2)Withhisworkcompletedthebusinessmansteppedbacktohisseatfeelingpleasedhewasamanofaction.(2006湖南)A.whichB.thatC.whatD.whether析：B。that引导宾语从句在从句中不作任何成分。(3)Thetraditionalviewiswesleepbecauseourbrainis“programmed”tomakeusdoso.(2007上海)A.whenB.whyC.whetherD.that析：D。that引导表语从句句意：传统的观念认为我们之所以睡觉是因为大脑中设计好的程序让我们这样去做。(4)Thefacthasworriedmanyscientiststheearthisbecomingwarmerandwarmertheseyears.(2009江西)A.whatB.whichC.thatD.though析：C。factideanewshopebeliefdoubtthoughtpossibilityrequest等词后经常会带有that引导的同位语从句以补充说明其内容。引导词that在从句中不作任何成分这也是与that引导的定语从句的区别。2.what引导的名词性从句【真题回放】(1)Itisnoneofyourbusinessotherpeoplethinkaboutyou.Believeyourself.(2007福建)A.howB.whatC.whichD.when析：B。本句中it作形式主语what引导的从句为真正的主语。(2)isknowntousallisthatthe2008OlympicGameswilltakeplaceinBeijing.(2008福建)A.ItB.WhatC.AsD.Which析：B。句意：众所周知2008年奥运会将在北京举行。what引导主语从句。(3)Whenaskedtheyneededmostthekidssaidtheywantedtofeelimportantandloved.(2008湖南)A.whatB.whyC.whomD.which析：A。what引导宾语从句作asked的宾语what在从句中作needed的宾语。另外when和asked之间省略了theywere。(4)Theseasideheredrawsalotoftouristseverysummer.Warmsunshineandsoftsandsmakeitis.(2007天津)A.whatB.whichC.howD.where析：A。what引导宾语从句作make的宾语。how作为连接副词也可以引导从句但它的意思是“如何怎样”强调方式如：Howitwasdonewasamystery。3.其它引导词引导的名词性从句【真题回放】(1)Itisnotimmediatelyclearthefinancialcrisiswillsoonbeover.(2009上海)A.sinceB.whatC.whenD.whether析：D。it作为形式主语代替whether引导的主