高考英语语法备考精讲与练习名词性从句

学习好资料欢迎下载学习好资料欢迎下载学习好资料欢迎下载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.thatwhatyoudidD.whatdidyoudo24.1willdesc