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1、名词性从句名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。因此，名词性从句可分为主语从句、表语从句、宾语从句和同位语从句。1.Whenwewillstartisnotclear.2.Shewon’tbelievethathersonhasbecomeathief.3.Myideaisthatweshoulddoitrightnow.4.Ihadnoideathatyouwereherfriend.主语从句宾语从句表语从句同位语从句I名词性从句的种类主语从句一般有三种结构：1.主语从句+谓语Thatshewillwinthematchis
2、certain.2.It’s+形容词（名词词组、过去分词）+that从句ItisimportantthatweteensshouldlearnEnglish.Itisgoodnewsthathewillattendthemeetingonbehalfofourschool.Itissaidthatourschoolwillholdasportsmeeting3.It+seem(happen，appear等不及物动词)+that从句ItseemsthatKatyisnotcomingtothisparty.宾语从句的结构主句+连接词(引导词)+宾语从句
3、在句子中起宾语作用的句子叫宾语从句，宾语从句放在及物动词或介词之后作宾语。Idon'tknowwhyheisalwayslateforschool.Weallagreewithwhatyousaidatthemeeting.宾语从句表语从句表语从句位于连系动词后,有时用asif引导。其基本结构为:主语+系动词+that从句。1.be,look,remain,等系动词后均可跟表语从句：Mysuggestionisthatweshouldgoshopping.2.asif也可引导表语从句。Itlooksasifit’sgoingtorain.3.ther
4、easonwhy…isthat…和Itisbecause…等结构。ItwasbecauseIgotuplate.同位语从句在句中作同位语，它一般要放在主句中某些名词的后面，说明这些名词的含义。可跟同位语从句的名词主要有：fact,news,promise,reason,idea,hope,word,belief等。如：Beijing,thecapitalofChina,ismyhometown.Weheardthenewsthatourteamhadwon.Wewerehappytohearthenewsthatwasannouncedbyourbo
5、ss.定语从句同位语从句判断以下从句是定语从句还是同位语从句:(1)Theyexpressedthehopethattheywould comeovertovisitChinaagain.(2)ThehopethattheyexpressedisthattheywouldcomeovertovisitChinaagain.(3)Weallknowthetruththattheearthgoes roundthesun.同同定Haveatry!Thefacthasworriedmanyscientists___theearthisbecomingwar
6、merandwarmertheseyears.A.whatB.whichC.thatD.though2.Thesuggestion___heraisedatthemeetingisverygood.A.whichB.thatC./D.whatthat引导同位语从句与定语从句的区别II.名词性从句的引导词：连接词：that、if、whether不作成分无意义2.连接代词：who、whom、whose、what、which3.连接副词：when、where、why、how“是否”作状语作主/宾/表考点一：区别that,what与which考点二：区别wh
7、ether与if考点三：区别what,whatever,与nomatterwhat...考点四：it作形式主语或形式宾语考点五：名词性从句的语序名词性从句考点归纳:考点1：连接词：that与what的区别Whathesaidmakesmehappy.Thatanewteacherwillcomeistrue.that只起连接作用，无意义，在从句中不充当任何成分,且在宾语从句中有时可省。what既起连接作用,又在从句中作主语,宾语,表语(且在名词性从句中只有what可作表语）what引导名词性从句时，在从句中作主语，宾语或表语。____wecan’tg
8、etseemsbetterthan____wehave.2.Chinaisnolonger____ituse
