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whether。e.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whether。e.g.Iwonderifitdoesn’train.②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）③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.④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if。但引导条件从句时，只能用if，而不能用whether。e.g.Itdependsonwhetherwehaveenoughtime.Theydon’tknowwhethertogothere.Pleasecometoseemeifyouhavetime.（五）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：1.Chinaisnolongerwhatitusedtobe.2.Thetruththattheearthturnaroundthesunisknowntoall.3.Itwassnowingwhenhearrivedatthestation.4.Howhepersuadedthemanagertochangetheplanisinterestingtousall.5.Thenewsthattheyhadwonthegamesoonspreadoverthewholeschool.6.Thenewsthatyoutoldmeyesterdaywasreallydisappointing.7.ThatiswhereLuXunusedtolive.8.Hespokeasifheunderstoodwhathewastalkingabout.9.DoyouremembertheteacherwhotaughtusEnglishatmiddleschool?10.Iwonderwhysherefusedmyinvitation.二、用适当的连词填空：1.Ican’tdecide____________dictionaryIshouldbuy.2.That’s____________herefusedmyinvitation.3.Iamveryinterestedin____________hehasimprovedhispronunciationinsuchashorttime.4.____________weneedismoretime.5.Thefact____________shehadnotsaidanythingatthemeetingsurprisedeverybody.6.____________and____________theywillmeethasnotbeendecidedyet.7.Pleasetellme____________youarewaitingfor.8.Isthat____________youarelookingfor?9.Wouldyoupleasetellme____________thenearestpostofficeis?10.Idon’tknow____________hewillagreetotheplanornot.三、选择填空：1.Doyousee_____Imean?A.thatB./C.howD.what2.Tellme_____isonyourmind.A.thatB.whatC.whichD.why3.Wemuststickto_____wehaveagreedon.A.whatB.thatC./D.how4.Letmesee_____.A.thatcanIrepairtheradioB.whether-IcanrepairtheradioC.IcanrepairtheradioD.whethercanIrepairtheradio5.Keepinmind_____.A.thattheteachersaidB.whatdidtheteachersayC.thatdidtheteachersayD.whattheteachersaid6.Couldyouadviseme_____?A.whichbookshouldIreadfirstB.whatbookshouldIreadfirstC.thatbook1shouldreadfirstD.whichbookIshouldreadfirst7.Hewascriticizedfor_____.A.hehaddoneitB.whathehaddoneC.whathadhedoneD.thathehaddoneit8.Wouldyoukindlytellme_____?A.howcanIgettotheBeijingRailwayStationB.howIcangettotheBeijingRailwayStationC.wherecanIgettotheBeijingRailwayStationD.whethercanIgettotheBeijingRailwayStation9.Mrs.Smithwasverymuchimpressedby_____.A.whathadsheseeninChinaB.thatshehadseeninChinaC.whatshehadseeninChinaD.whichhadsheseeninChina10.Wetookitforgranted___A.thattheywerenotcomingB.thatweretheynotcomingC.theywerecomingnotD.weretheynotcoining11.Ireallydon'tknow_____A.IshoulddonextB.whatshouldIdonextC.whatIshoulddonextD.howIshoulddonext12.I'mafraid_____.A.thelittlegirlwillhavetobeoperatedonB.thatwillthelittlegirlhavetooperateonC.thelittlegirlwillhavetooperateonD.thatwillthelittlegirlhavetobeoperatedon13.Shewalkedupto_____.A.wheredidIstandB.whereIstoodC.IstoodthereD.whereIstoodthere14.Canyoutellme_____?A.whoisthatgentlemanB.thatgentlemaniswhoC.whothatgentlemanisD.whom.isthatgentleman15.We'llgiveyou_____.A.thatdoyouneedB.whatdoyouneedC.whateveryouneedD.whetherdoyouneed16.Theywantustoknow_____tohelpus.A.whatcantheyB.whattheycanC.howtheycanD.howcanthey17.Wemustput_____intopractice.A.whatwehavelearnedB.thatwehavelearnedC.thathavewelearnedD.whathavewelearned18.Didshesayanythingabout_____?A.thattheworkwastobedoneB.howwastheworktobedoneC.thatwastheworktobedoneD.howtheworkwastobedone19.Hewasneversatisfiedwith_____.A.whatshehadachievedB.hadwhatsheachievedC.shehadachievedD.thatsheachieved20.Thesephotographswillshowyou_____.A.whatdoesourvillagelooklikeB.whatourvillagelookslikeC.howdoesourvillagelooklikeD.howourvillagelookslike21.Peterinsisted_____hepaythebill.A.onthatB.whatC.thatD.onwhich22.Theyurged_____thelibraryopenduringthevacation.A.whenB.whereC.whyD.that23.Wewishwecouldhavelearned_____whenwewereathighschool.A.whatyoudidB.thatyouhaddoneC.tha