名词性从句-英语

Pointoutthefunctionofeachnouninthefollowingsentences:1.Theworldlovesnature.2.Knowledgeispower.3.WeChinesearepeace-loving.subjectobjectpredicativesubjectsubjectappositionpredicative名词性从句•名词性从句在功能上相当于名词主语{Hisjobisimportant.Whathedoesisimportant.表语Thisishisjob.Thisiswhathedoeseveryday.{宾语{Idon’tlikehisjob.Idon’tlikewhathedoeseveryday.同位语{Idon’tknowabouttheman,Mr.White.Idon’tknowaboutthefactthatheisMr.White.什么叫名词性从句？•在句子中起名词作用的句子叫名词从句(NounClauses）•名词从句的功能相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语等•因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句Whatarenounclauses?Hisstoryisinteresting.Whathesaidisinteresting.Iheardhisstory.Iheardwhathesaid.Ilistentohisstory.Ilistentowhathesaid.Thisishisstory.Thisiswhathesaid.Theideaofgoingthereisgood.Theideathatwegothereisgood.SubjectclauseObjectclauseObjectclauseafteraprepositionPredictiveclauseAppositiveclausePracticetime：指出下列各名词性从句的种类1.Atlunchtime,theradioweathermanreportedthatthemistwouldbecomeathickfogintheafternoon.2.Shewonderedifthebuseswouldstillberunning.3.Thetruthisthatthefogistoothickforthebustorunthatfar.4.Whenwewillstartisnotclear.5.Ihadnoideathatyouwereherfriend.ObjectclauseObjectclausePredicativeclauseSubjectclauseAppositiveclause名词性从句中的连接词有:连词:that/whether/asif(though);连接代词:what/who/which/whose/whatever/whoever/whomever/whichever，连接副词:where/when/why/how/wherever/whenever。引导词•句型转换•1.Theyaregooddoctors.Hetoldus.→•2.Hehadn’tsaidanythingatthemeeting.Thefactsurprisedus.→Hetoldusthattheyweregooddoctors.Thefactthathehadn’tsaidanythingatthemeetingsurprisedus.总结：当从句原来是陈述句时，变成名词性从句用that引导。3.Doesyoursistergetupearly?Doyouknow?→4.Doanimalshavethesamesensesashumans?Ioftenwonder.→Doyouknowif/whetheryoursistergetsupearly?Ioftenwonderif/whetheranimalshavethesamesensesashumans.总结：当从句原来是一般疑问句时，变成名词性从句用if或whether引导。5.Whendidhebuythisnewbike?Couldyoutellme?→6.Myquestionisthis:wherewillthelecturebegiven?→Couldyoutellmewhenheboughtthisnewbike?Myquestioniswherethelecturewillbegiven.总结：当从句原来是特殊疑问句时，变成名词性从句还用原来的特殊疑问词来引导。总结：名词性从句必须用陈述句语序。另外，一般情况下，名词性从句均看作单数概念。由what引导的一般看后面的表语。宾语从句的时态一般与主句保持一致。1.Whatweneedmoretime.2.WhatweneedmoreEnglishdictionaries.areisPracticetime.单句改错1.Thattheearthturnsaroundthesunareknowntoall.2.Whenthemeetingwillbeheldhaven’tbeenknownyet.3.Ididn’tknowthatyouwillcome.4.Hesaidthatheiswritingastory.5.Couldyoutellmewhenwillhearrive?6.YoucanbegintoseewhydoesEnglishhavesuchstrangerules.___is______hasn’t____would___was______hewill___________________EnglishhasObjectClauses宾语从句1.Iknowhim.2.Iknowwhoheis.主语谓语宾语（简单句）主语谓语宾语从句连词从句主语从句谓语主句（复合句）宾语从句的概念：宾语从句在复合句中作主句的宾语。句子结构：主句+连词（引导词）+简单句或其一部分一、连词（引导词）1.当宾语从句是陈述句时（包括肯定句和否定句），连词由that引导，因为that在从句中不作任何成分，也没有任何具体意思，因此在口语或非正式文体中常省略Shesays(that)shewon’ttakepartinthesportsmeetingnextSunday.Jimthought(that)thetrainwaslikeabigmovingparty.•2.宾语从句中的连接词that在以下三种情况下不能省略：•（1）当that从句与另一名词性从句并列作宾语时，第二个that不能省；•（2）当that作介词宾语时，that不可省掉。•（3）用it做形式宾语的宾语从句•Everyoneknewwhathappenedandthatshewasworried.•Thereasonliesinthatsheworksharderthantheothersdo.•IthinkitnecessarythatyoushouldreadEnglishaloud.3.在主句为动词be加某些形容词（如sorry,sure,afraid,glad等）作表语时，后面所跟的省略that的从句也可算是宾语从句I’msorry(that)Idon’tknow.We’resure(that)ourteamwillwin.I’mafraid(that)hewon’tpasstheexam.4.当宾语从句是一般疑问句时，由连词whether或if引导（口语中常用if），因为if/whether翻译成：“是否”，具有一定的意义，所以不能省略Lilywantedtoknowif/whetherhergrandmalikedthehandbag.Let’sseeif/whetherwecanfindoutsomeinformationaboutthatcity.Sheaskedmeif/whethershecouldborrowthesebooks.whether与if的辨用•表“是否”时，在下列情况下用whether。•a.主语从句b.表语从句c.同位语从句d.介词后的宾语从句e.后接动词不定式(whethertodosth.)f.whetherornot连在一起引导宾语从句时不用ifPracticetimeif/whether1.Iaskedher__________shehadabike.3.We’reworriedabout________heissafe.4.Idon’tknow___________heiswellornot.5.Idon’tknow________ornotheiswell.8.Idon’tknow_______togo.if/whetherwhetherwhether/ifwhetherwhether5.当宾语从句是特殊疑问句时，由连接代词（what,who,whom,whose）或连接副词（when,where,how,why）引导，因为连接代词或连接副词在从句中担任一定的句子成分，具有一定的意义，所以不可以省略Doyouknowwhathesaidjustnow?Idon’trememberwhenwearrived.IaskedhimwhereIcouldgetsomuchmoney.Pleasetellmewho(whom)wehavetosee.Doyouknowwhattimetheplaneleaves?带how的词组也都可以引导宾语从句Couldyoutellushowoftenyougoabroadforaholiday?Couldyoutellushowlongthemeetingwilllast?Idon’tknowhowfaritistothecinema.Pleasetellushowmanystudentsthereareinyourschool?Canyoutellushowoldhisbrotheris?Pleasetellushowsoonyouwillbeready.CouldyoutellushowmuchitcoststoflytoHainan?二、时态1.如果主句是现在的时态（包括一般现在时，现在进行时，现在完成时），从句的时态可根据实际情况而定，（包括一般现在时，一般过去时，一般将来时，现在完成时等）Iknowheliveshere.Iknowhelivedheretenyearsago.Ihaveheardthathewillcometomorrow.2.如果主句是过去的时态（包括一般过去时，过去进行时），那么从句的时态一定要用相对应的过去的某种时态（包括一般过去时，过去进行时，过去将来时，过去完成时）Iknewwholivedhere.Isawshewastalkingwithhermother.Heaskedwhetherhisfatherwouldcomebacktomorrow.Hesaidthathehadseenit.3.当从句是客观真理，定义，公理，定理时用一般现在时。Theteachersaidthattheearthtravelsaroundthesun.1.Theradiosaysit_______cloudytomorrow.(be)2.Theheadmasterhopeseverything______well.(go)3.Tomsaysthatthey_________(play)basketballatsixo’clockyesterdayevening.4.Ihearthey__________(return)italready.5.Hesaidthatthey_________membersofthePartysince1948.(be)willbegoeswere