(完整版)高中名词性从句讲解与练习

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，名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。（一）引导名词性从句的连接词1、连接代词：who,whose,whom,what,which。有词义，在从句中担任成分，如主语、表语、宾语、或定语等。2、连接副词：when,where,why,how。有词义，在从句中担任成分，作状语。3、连接词：that,whether,if,asif。that无词义，在从句中不担任成分，有时可省略；if（whether）,asif虽有词义，但在从句中不担任成分。注意：连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。连接代词与连接副词在从句充当句子成分，连接词whether和if（是否），asif（好象）在从句中不充当句子成分，只起连接作用。根据句义，如果连接代词与连接副词，whether、if和asif都用不上时，才用that作连接词（that本身无任何含义）。（二）主语从句1、主语从句在复合句作主语。e.g.Whowillgoisnotimportant.2、用it作形式主语，主语从句放在句末。e.g.Itdoesn'tmattersomuchwhetheryouwillcomeornot.3、that引导主语从句时，不能省略。e.g.Thathesuddenlyfellilllastweekmadeussurprised.（三）表语从句1、表语从句在复合句中作表语，位于系动词之后。e.g.Thequestionwaswhocouldgothere.2、引导表语从句的连接词that有时可省去。e.g.Myideais（that）wecangetmorecomradestohelpinthework.（四）宾语从句1、宾语从句在复合句中作宾语。引导宾语从句的连词that一般可省略。e.g.Ihope（that）everythingisallright.2、介词之后的宾语从句，不可用which或if连接，要分别用what或whetheroe.g.I'minterestedinwhetheryou'vefinishedthework..I'minterestedinwhatyou'vesaid.3、whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。①宾语从句是否定句时，只用if,不用whetheroe.g.Iwonderifitdoesn'train.用if会引起误解，就要用whether。e.g.Pleaseletmeknowwhetheryouwanttogo.（此句如果把whether改成if，容易当成条件句理解）宾语从句中的whether与ornot直接连用，就不能换成if；不直接连用，可换。e.g.Idon'tknowwhetherornotthereportistrue.Idon'tknowwhether/ifthereportistrueornot.介词后的宾语从句要用whether引导。whether可与不定式连用。whether也可引导主语从句、表语从句、同位语从句，还可引导让步状语从句，以上均不能换成f。但引导条件从句时，只能用if,而不能用whetheroe.g.Itdependsonwhetherwehaveenoughtime.

Theydon'tknowwhethertogothere.Pleasecometoseemeifyouhavetime.同位语从句同位语从句在句中作某一名词的同位语，一般位于该名词(如：news,fact,idea,suggestion,promise等)之后，说明该名词的具体内容。e.g.Ihavenoideawhenhewillbeback.Thefactthathehadnotsaidanythingsurprisedeverybody.练习：名词性从句一、判断下列各句哪句含有名词性从句，并指出是什么从句Chinaisnolongerwhatitusedtobe.Thetruththattheearthturnaroundthesunisknowntoall.Itwassnowingwhenhearrivedatthestation.Howhepersuadedthemanagertochangetheplanisinterestingtousall.Thenewsthattheyhadwonthegamesoonspreadoverthewholeschool.Thenewsthatyoutoldmeyesterdaywasreallydisappointing.ThatiswhereLuXunusedtolive.Hespokeasifheunderstoodwhathewastalkingabout.DoyouremembertheteacherwhotaughtusEnglishatmiddleschool?Iwonderwhysherefusedmyinvitation.、用适当的连词填空：1.Ican'tdecidedictionaryIshouldbuy.2.That'sherefusedmyinvitation.Iamveryinterestedinhehasimprovedhispronunciationinsuchashorttime.weneedismoretime.Thefactshehadnotsaidanythingatthemeetingsurprisedeverybody.andtheywillmeethasnotbeendecidedyet.Pleasetellmeyouarewaitingfor.Isthatyouarelookingfor?Wouldyoupleasetellmethenearestpostofficeis?Idon'tknowhewillagreetotheplanornot.DoyouseeImean?A.thatB./Tellmeisonyourmind.A.thatB.whatWemuststicktowehavA.whatDoyouseeImean?A.thatB./Tellmeisonyourmind.A.thatB.whatWemuststicktowehavA.whatB.thatLetmesee.A.thatcanIrepairtheradioC.IcanrepairtheradioKeepinmind.A.thattheteachersaidC.thatdidtheteachersayC.howC.whichwehaveagreedon.C./D.whatD.whyD.howB.whether-IcanrepairtheradioD.whethercanIrepairtheradioB.whatdidtheteachersayD.whattheteachersaidTOC\o"1-5"\h\zCouldyouadviseme?whichbookshouldIreadfirstB.whatbookshouldIreadfirstC.thatbook1shouldreadfirstD.whichbookIshouldreadfirstHewascriticizedfor.hehaddoneitB.whathehaddoneC.whathadhedoneD.thathehaddoneitWouldyoukindlytellme?howcanIgettotheBeijingRailwayStationhowIcangettotheBeijingRailwayStationwherecanIgettotheBeijingRailwayStationwhethercanIgettotheBeijingRailwayStationMrs.Smithwasverymuchimpressedby.B.thatshehadseeninChinaD.whichhadsheseeninChinaB.thatshehadseeninChinaD.whichhadsheseeninChinaB.thatweretheynotcomingD.weretheynotcoiningWetookitforgranted___thattheywerenotcomingC.theywerecomingnotIreallydon'tknowIshoulddonextB.whatshouldIdonextC.whatIshoulddonextD.howIshoulddonextC.whatIshoulddonextD.howIshoulddonextI'mafraidthelittlegirlwillhavetobeoperatedonthatwillthelittlegirlhavetooperateonthelittlegirlwillhavetooperateonthatwillthelittlegirlhavetobeoperatedonShewalkeduptowheredidIstandShewalkeduptowheredidIstandC.IstoodthereCanyoutellme?whoisthatgentlemanC.whothatgentlemanisWe'llgiveyou.thatdoyouneedC.whateveryouneedTheywantustoknow_whereIstoodD.whereIstoodtherethatgentlemaniswhoD.whom.isthatgentlemanwhatdoyouneedD.whetherdoyouneedtohelpus.whatcantheyB.whattheycanC.howtheycanD.howcantheyWemustputintopractice.A.whatwehavelearnedthatwehavelearnedA.whatwehavelearnedthatwehavelearnedthathavewelearnedwhathavewelearnedthathavewelearnedwhathavewelearnedDidshesayanythingabout?A.thattheworkwastobedoneB.howwastheworktobedonethatwastheworktobedoneD.howtheworkwastobedoneHewasneversatisfiedwith.A.whatshehadachievedB.hadwhatsheachievedshehadachievedD.thatsheachieved

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