ThePredicativeClause表语从句1、表语从句的定义:表语从句放在连系动词之后,充当复合句中的表语。Thequestioniswhowilldoit.系动词表语从句2.表语从句的构成主语+系动词+引导词+简单句Thisiswhyhedidit.表语从句放在系动词之后,充当复合句中的表语。WhatIwanttosayisthatIamtired语序:有疑问词/引导词+陈述语序That'swhathewants.那是他想要的。Thisiswheretheyoncelived.这就是他们曾经住过的地方。3.接表语从句的系动词:1:be(being,been,am,is,are,was,were)2:feel,seem,look,appear,sound,taste,smell3:stand,lie,remain,keep,stay4:become,get,grow,turn,go,come,run,fall5:prove,turnout4.接表语从句的引导词连接词:that/whether/asif/asthough(if不引导表语从句)连接代词:who(ever)/whom/whose/which(ever)/what(ever)连接副词:when/where/why/how/because5.引导词的用法(一)that在表语从句中,又。既不充当成分没有意义不能省略Thefactisthathehasn’tyetrecoverfromillness.Thereasonwhyhehastogoisthathismotherisillinbed.1.名词主语+be+that引起的表语从句主语名词常常是表示事实,真理的名词,如:fact,truth表示看法,观点、问题、麻烦的名词,如:idea,opinion,belief,view,news,advice,feeling,suggestion,plan,trouble,question,problem,1.Thefactisthatourteamhaswonthegame.2.Thetruthisthatshewastheverypersonwearelookingfor.注意(2)表示“建议,劝说,命令”的名词idea,suggestion,request,proposal等后面的表语从句中,谓语动词用“(should)+动词原形”,should可省略Myopinionisthatit’sgettingbetterandbetter.Mysuggesstionisthatwe(should)startearlytomorrow.whether在表语从句中表,但不充当句子的成分。if引导表语从句.如:Whatthedoctorreallydoubtsiswhethermymotherwillrecoverfromtheseriousdiseasesoon.Thequestioniswhetheritisworthdoing.“是否”不能5.引导词的用法(二)what在表语从句中充当______________表示____________________________.1.Thequestioniswhatcausedtheaccident.2.Thatmountainisnolongerwhatitusedtobe.3.Whathetoldyouwaswhathadbeendiscussedatthemeeting.主语、宾语或表语什么,什么样子,或所…的(人或事)5.引导词的用法(三)who在表语从句中充当______________表示____.1.Theproblemiswhocoulddothework2.Mytroubleiswho(whom)Icanturnto.主语、宾语或表语谁5.引导词的用法(四)which在引导表语从句时,常充当_____________表示。如:Ireadaboutitinsomebookoranother,butwhatIdon’tknowiswhich(book)itis.定语,表语其中哪一个5.引导词的用法(五)where,when,why,how引导的表语从句连接副词where,when,why,how除在句中起连接作用外,在从句中还充当时间、地点、方式、原因状语,本身具有词义。e.g.That’swhereIcan’tagreewithyou.ThisiswhySarawaslateforthemeeting.Thisishowtheyovercomethedifficulties.MystrongestmemoryiswhenIattendedanAmericanwedding.5.引导词的用法(六)asif,asthough引导的表语从句asif/though引导的表语从句常置于连系动词look,seem,sound,be,become等后面,常用虚拟语气,表示不存在的动作或状态。e.g.Itsoundsasif/thoughsomebodywasknockingatthedoor.主语+连系动词(look/seem/appear……)+that/asif从句5.引导词的用法(七)注意:asif/asthough引导的表语从句如果是事实,就用陈述语气,如果与事实不符,就用虚拟语气:主句用do,从句用did(be的话变成were)。主句用did,从句用hadp.p)。Itlooksasifhewereherownfather.(与事实不符)Darkcloudsaregathering.Itlooksasifitisgoingtorain.because,why引导的表语从句例句:(1)That’sbecausehedidn’tunderstandme.那是因为他不理解我。(强调原因)(2)That’swhyhegotangrywithme.那正是他对我生气的原因。(强调结果)5.引导词的用法(八)(That‘sbecause…强调原因)(That'swhy…强调结果)That‘sbecausehedidn’tunderstandme.1.那是因为他没有理解我。2.那正是他对我生气的原因。That’swhyhegotangrywithme.that,why与because引导表语从句表示原因的区别:1.that没有词义,why强调结果“为什么”,because强调原因“因为”Thereasonwasthatyoudon’ttrusther.原因是你不信任她。Thefactisthattheyareangrywitheachother.事实是他们生彼此的气。Hewasill.That’swhyhewassenttothehospital.他病了,所以被送到医院来。Hewassenttothehospital.That’sbecausehewasill.他被送到医院,是因为他生病了。Shewaslatethismorning.Thatwasbecauseshemissedtheearlybus.Myangerisbecauseyouhaven’twrittentomeforalongtime.2.because引导表语从句通常只用于“This/That/Itisbecause…”结构中。填空:Thereasonwhywedidn'ttrusthimis______hehasoftenlied.Thereasonisthat+原因Thereason+(why…/for…)is/wasthat….that3.reason做主语时,表语从句只能用that引导,不能用why引导。句型结构为:B主句主语为reason,只能用that引导表语从句,不能用because.例题:Thereasonwhyhefailedis________hewastoocareless.A.becauseB.thatC.forD.becauseof用because,that,why填空Eg.Thereasonwas______theheavyrainpreventedhimfromcoming.Thereason________wedidn’ttrusthimisthathehasoftenlied.Itis_______hehasoftenlied,sothatwedidn’ttrusthim.例题1:Thequestionis________wewillhaveoursportsmeetnextweek.A.thatB.ifC.whenD.whetherD注意点1:if不能引导表语从句如果从句是特殊疑问句,用陈述句语序2.Theproblemis_________totaketheplaceofJohn.A.whocanwegetB.whatwecangetC.whowecangetD.thatwecangetC注意:表语从句中的that不能省略表语从句中只能用whether不能用if表语从句中,从句用陈述句语序1.---Areyoustillthinkingaboutyesterday'sgame?---Oh,that's_______.(2003北京春季)A.whatmakesmefeelexcitedB.whateverIfeelexcitedaboutC.howIfeelaboutitD.whenIfeelexcitedA解析:这是由what引导的一个表语从句,在从句中充当主语,这句话的意思为:那是使我感到兴奋的事。故答案为A。2.---IdrovetoZhuhaifortheairshowlastweek.---Isthat_______youhadafewdaysoff?(NMET1999)A.whyB.whenC.whatD.where解析:这是一个由why引导的表语从句,表示原因.这句话的意思是这就是你离开的原因吗?。故答案为A。A3.Whenyouanswerquestionsinajobinterview,pleaserememberthegoldenrule:Alwaysgivethemonkeyexactly_______hewants.(2002上海春季)A.whatB.whichC.whenD.that解析:这是一个宾语从句,wants后面缺少宾语,Alwaysgivethemonkeyexactlywhathewants是一句谚语,意思是永远给予他人他确实想要的东西。故答案为A。A练习:1.Goandgetyourcoat.It’s________youleftit.A.whereB.thereC.therewhereD.wherethere2.Thereasonwhyhehasn’tcomeis___________.A.becausehismotherisillB.becauseofhismother’sbeingillC.thathismotherisillD.forhismotherisill3.Thatis_____wewerelatelasttime.A.thatB.whenC.whyD.what4._______yourfatherwantstoknowis________gettingonwithyourstudies.A.What;howareyouB.That;howyouareC.How;thatyouareD.What;howyouareACCD5.Einstein’smostfamoustheoryis___wecalltheTheoryofRelativity.A.whatB.thatC.whichD.why6.Mysuggestionwasthatthemeeting___tillthenextweek.A.toputoffB.beputoffC.shouldputoffD.wasputoff7._____heislivingnowisnotknowntoany