名词性从句（1）主语从句名词性从句的结构和功能总述名词性从句包括主语从句，宾语从句，表语从句，同位语从句。名词性从句是一种具有名词功能的非独立分句。名词性从句主要有4种从句结构：1.以that引导的从句；2.以what或wh-ever等连接代词引导的名词关系从句。3.以whether/if引导的从句；4.以特殊疑问词引导的从句；back近5年有关名词性从句考点分布表主语从句宾语从句表语从句同位语从句2005182320062313200745202008531120092704考点题量年份1．正确选择引导名词性从句的引导词区别what与that以及whether与if。2．名词性从句的语序名词性从句只能是陈述句语序；3．前几年高考对宾语从句中的陈述句语序以及连接词的选择等问题考查较多，而近几年高考对名词性从句的考查日趋灵活，多以考查名词性从句的引导词为主，并且常与定语从句和状语从句等相关知识结合起来考查。高考对名词性从句的考查重点如下：主语从句：主语从句在主从复合句中作主语。Whowillgoisnotimportant.表语从句：表语从句在主从复合句中作表语。Thatiswhyhewaslate.宾语从句：宾语从句在主从复合句中作宾语。I'minterestedinwhetheryou'vefinishedthework.同位语从句：同位语从句在主从复合句中作同位语。Thefactthathehadnotsaidanythingsurprisedeverybody.backRevision辨别下列从句类型1.Thatweneedmoreequipmentisquiteobvious.2.Couldyoutellmewherethebookingofficeis?3.Thatiswhatweshoulddo.4.whetherthemeetingwillbegivenisstillaproblem.5.Ihavenoideathatyouwerehere.6.whatyouneedismorepractice.back主语从句宾语从句表语从句主语从句同位语从句主语从句7.Wordcomesthatheisleaving.8.Wealwaysmeanwhatwesay.9.Ithasn'tbeenmadepublicwhentheywillcome?10.Itookitforgrantedthattheywerecoming.11.Hissuggestionisthatwe(should）ourminds.12.HeremindedmethatIhadameetingtoattendthatevening.同位语从句宾语从句主语从句宾语从句表语从句宾语从句主语从句一.以that引导的主语从句that是纯连词，在从句中不充当任何成分，不翻译，置于句首不能省略；这类从句大多情况要置于句子后面，而用it作形式主语。常见句型有:1.It+be+形容词(certain,obvious,true,necessary,important,funny,probable,etc.)Itiscertainthatshewilldowellintheexam.Itisprobablethathetoldhereverything.2.It+be+名词词组（apity,nowonder,nosurprise,anhonour,etc.）Itisapitythatwecan'tgo.Itisnosurprisethatourteamhaswonthegame.3.It+be+过去分词（said,reported,thought,expected,decided,etc.）ItissaidthatMr.GreenhasarrivedinBeijing.Itisreportedthatitisgoingtoraintomorrow.Itiswellknownthat...众所周知...Ithappens/happenedthat...碰巧...Itturns/turnedoutthat...结果...Itoccurredtomethat...我突然想到...Ithasbeenfound/provedthat...已经发现/证明...Itmustbepointedoutthat...必须指出...其它常见句型：能力·思维·方法【例1】Ithasbeenproved------eatingvegetablesinchildhoodhelpstoprotectyouagainstseriousillnessinlatelife.A.ifB.becauseC.whenD.that【解析】本题考查it作形式主语时主语从句的引导词。Dwhat表示“...所...的（东西)",在句中作成分（主语，宾语，表语）【例2】［２０１０年陕西英语高考试题调研.样题4］------isknowntousisthatthe2012OlympicgameswilltakeplaceinLondon.A.ItB.WhatC.AsD.which【解析】本题考查主语从句的引导词。Whatisknowntous为主语从句，what为连接词并在从句中作主语。句中that引导表语从句.二.以what或wh-ever等连接代词引导的主语从句。B考生解这类试题时要注意主语从句和其他从句的区别.1.Whatisknowntousisthatthe2012OlympicgameswilltakeplaceinLondon.主语从句&表语从句2.Itisknowntousthatthe2012OlympicgameswilltakeplaceinLondon.主语从句3.Asisknowntous,the2012OlympicgameswilltakeplaceinLondon.定语从句4.The2012OlympicgameswilltakeplaceinLondon,as/whichisknowntous.定语从句三.以whether/if（是否)引导的主语从句；当主语从句位于句首时，只用whether不用if；当it作形式主语，主语从句放在句末时whether和if均可。【例3】［２００9年上海］Itisnotimmediatelyclear------thefinacialcrisiswillsoonbeover.A.sinceB.whatC.whenD.whether【解析】本题考查主语从句的引导词。DTheendThankyou
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