语法复习名词性从句名词性从句名词性从句一、名词性从句的种类二、常见的连接词三、名词性从句应注意的几点问题1.that\what\which和if\whether引导名词性从句的区别2.疑问词和疑问词+ever的区别3.it作形式主语、形式宾语4.语序问题5.宾语从句的否定转移6.同位语从句和定语从句区别一、种类:在复合句中起名词作用的从句叫做名词性从句。种类有:名词性从句主语从句表语从句宾语从句同位语从句1.Whenwewillstartisnotclear.2.MrsBlackwon’tbelievethathersonhasbecomeathief.3.Myideaisthatweshoulddoitrightnow.4.Ihadnoideathatyouwereherfriend.主语从句宾语从句表语从句同位语从句判断名词性从句的种类（动词、介词、形容词之后的宾从）连接代词who(ever),whom(ever),whose(ever),which(ever),what(ever)连接副词when,where,why,wherever,how(ever),连接词that,whether,if二.引导名词性从句的连接词引导词的意义引导词的意义1）从属连词that本身无意义，仅起连接作用。（引导宾语从句时可可省，但是如果是并列的多个宾语从句，只能省第一个）eg.Hesaid(that)hewasbusyandthathecouldnotcometohelpus.从属连词if,whether（是否）2）连接代词who,whom,what,which,whoever,whatever,whichever等，起连接作用，可在从句中充当主语，宾语，定语，表语等语法成分Thequestioniswhocanoperatethenewmachine.Theyaskedwhoseideathiswas.Thisiswhathehasaskedfor.Doyouknowwhatthatis?3）连接副词where,when,how,why等，起连接作用，在从句中充当状语Tellmewhyyouwereabsentyesterday.Whenthemeetingwillbeheldhasnotbeendecidedyet.Howwecanraiseourproductionremainsaproblem.三、名词性从句应注意的几点问题Point1：A.that与what的区别Whatwecan’tgetseemsbetterthanwhatwehave.That(anewteacherwillcometoourschool)istrue.that无意义，在从句中不充当任何成分what要在从句中作成分（主语，宾语，表语）(…的东西;物;话;时间;地点;人物;数目等不同概念)1]._________hesaiditmadeusangry.2]________hesaidatthemeetingmadeusangry.ThatWhat3].Afterfivehours'drive,theyreached______wastheplacetheydreamedof.what4]._____theearthisroundisknowntousall.Thatwhat5].MyFatherandmotherhavemadeapromise_____ifIpasstheexaminationhewouldbuymeacomputer.6].Heisnolonger______heusedtobe10yearsago.thatB.what(什么)/which(表选择,哪一个)1].---Doyouknow________MrBlack’saddressis?=whereMr.Blacklives?---HemayliveatNo.18orNo.19ofBridgeStreet.I’mnotsureof_________.whatwhich2].Ireadaboutitinsomebookorother,doesitmatter_______itwas?whichC.if与whether区别1].Wehaven’tdecided_______toholdameetingtosettletheproblem.2].Thequestionis______thisbookisworthwriting.3].Iwonder______ornothewillbeontime.whetherwhetherwhether4].Itdependson______wewillhaveenoughmoney.5].______theycandoitmatterslittletous.a.主语从句、表语从句、同位语从句、介词后面的宾语从句只能用whether，b.后面紧跟ornot时,用whetherc.后是不定式结构时只用whetherwhetherWhetherPoint2:疑问词和疑问词+ever的区别1].Hermothergivesher________shelikes.2]._______weneedismoretime.3]._______willgoabroadforfurtherstudyisnotdecidedyet.4]._________breaksthelawwillbepunished.WhateverWhatWhoWhoeverwho和whoever都可以作连接代词，who是特指，意思是“谁”，有疑问意义。Whoever主要用于泛指，意思是“无论谁，不管谁”，无疑问意义。其他几组，如：whom(ever),whose(ever),which(ever),what(ever)和上述区别基本相同，只是使用时要注意它们的词义。名词性从句的连接词和定语从句的对应关系what=allthat/thethingthatwhatever=anythingthatwho=theonewho/thatwhoever=anyonewhowhomever=anyonewhomWhathesuggestedsoundedreasonable.=All(that)hesuggestedsoundedreasonable.Whatevershesaidheremustbekeptsecret.=Anythingthatshesaidheremustbekeptsecret.point3：it作形式主语...
