(完整版)表语从句用法

表语从用法定义：用作表语的从句叫做表语从句引导表语的从句的关联词的种类从属连词that.ThetroubleisthatIhavelosthisaddress.Thereasonwasthathewaslateforschool.从属连词whether,as,asifHelookedjustashehadlookedtenyearsbefore.Thequestioniswhethertheywillbeabletohelpus.注：从属连词if一般不用来引导表语从句，但asif却可引导表语从句。Allthiswasovertwentyyearsago,butit'asifitwasonlyyesterday.Thekeyiswhetherwecansolvetheproblem.Itlookedasifitwasgoingtorain.注：能跟表语从句的谓语动词一般为系动词be,seem,look,sound等Helookedjustashehadlookedtenyearsbefore.Itsoundsasifsomeoneisknockingatthedoor.连接代词who,whom,whose,what,which,whoever,whatever,whichever在表语从句中做主语、宾语等。Theproblemiswhowecangettoreplaceher.Thatwaswhatshedidthismorningonreachingtheagreement.Myquestioniswholeft.连接副词where,when,how,whyWhatIwonderiswhenheleft.Thisiswheretheyoncelived.Thatiswhyhedidn'tcomehere.Thequestionishowhedidit.(5)连词because可引导表语从句。注意：because可引导表语从句，但与之同义的since,as,for等不用于引导表语从句。Ithinkitisbecauseyouaredoingtoomuch.It'sjustbecausehedoesn'tknowher.That'sbecausehedidn'tunderstandme.(That'sbecause…强调原因)That'swhyhegotangrywithme.(That'swhy...强调结果)注意：在一些表示“建议，劝说，命令”的名词后面的表语从句中，谓语动词用虚拟语气.Should+动词原形表示‘should可省略。Mysuggestionisthatwe(should)startearlytomorrow.一坚持(insisit)二命令(command,order)三建议(suggest,advise,propose)四要求(desire,demand,require,request)四．注意事项(重点看)表语从句要用陈述语序。Thatiswherethefamousscientistwasborn.Thisiswhysheissohappytoday.that和what在引导的表语从句that本身没有词义，在句中只起连接作用，不充当句子成分；what则表示“所…的(人或事)”，在表语从句中充当主语或宾语等。Thatfacetisthatmorethanseventypercentoftheearth'ssurfaceiscoveredbywater.Whathetoldyouwaswhathadbeendiscussedatthemeeting.3.if与whether均意为“是否”引导的表语从句是，只能用whether,不能用if。Thequestioniswhetherwecanfinishourworkbytomorrowevening.语气主语为advice,order,idea,notion,proposal,suggestion,request等一些表示“建议，劝说，命令”的名词，之后的表语从句中，谓语动词用虚拟语气。Should+动词原形表示‘should可省略。Mysuggestionisthatwe(should)startearlytomorrow.Ouronlyrequestisthatthisshouldbesettledassoonaspossible.asif/though引导的表语从句时，从句谓语多用虚拟语气。这是因为从句中的情况与事实不相符。具体来说，如果从句表示与现在事实相反，谓语动词用一般过去式；如果从句表示与过去事实相反，谓语动词“had+done”如果从句表示将来的可能性不大，用would(might,could)+动词原形。LiLeiisnowinanewjackethelooksasifhewereanAmericanboy.Thegirlisgivingusavividdescriptionofthemoon.Itseemsasifshehadbeentothemoonmanytimes.但是，如果asif,asthough引导的表语从句所表示的与事实相符，从句则用陈述语气。Thecloudsaregathering.Itlooksasifitisgoingtorain.时态不像宾语从句，在有表语从句的复合句中，主语时态和从句时态可以不一致。ThequestioniswhowilltravelwithmetoBeijingtomorrow.Thequestioniswhyhecriedyesterday.系动词分类：一．根据系动词后所跟结构，我们可以把英语系动词分为两大类：完全系动词（其后只能跟表语动词，如be,seem）和半系动词（其后既跟表语作系动词用法，也可以跟宾语或状语作实义动词用，如look）1）Helookedsadlyattheboy.（看着，实义动词用法）Helooksacleverboy.（看起来，系动词用法）2）Helooksatacleverboy.（看着，实义动词用法）在英语中，某一动词是多义词，既有实义动词用法，又有系动词用法。二．根据系动词的意义，我们把英语系动词分为四类：五大感官系动词B.状态系动词C.动态系动词D.双谓语系动词l.look“看起来像是“，后接adj,n.分词，介词短语，不定式等。Thegirlbitherlipsandlookedthoughtful.2.Smell“听起来”后接adj,分词。Theflowersmellsweet.sound“听起来“，后接adj,分词。Themusicsoundssweet.taste“尝起来“，后接adj,分词。Theapplestasteverygood.feel①“摸起来，给....感觉”②“觉得”后接adj,p.pYouwillfeelbetterafteranight'ssleep.状态系动词：1.be,“是“，属完全系动词。Iamastudent.seem,“似乎，好像“，完全系动词。Theyseemquitehappy.appear“显得，看起来好像”半系动词。Itappeared（tobe）atruestory.keep,“保持…的状”半系动词，后接adj或介词短语。You'dbettergotobedandkeepwarm.remain,“仍是”半系动词。Iremainedsilent.stay“保持（某种状态）”，半系动词，后接adj,过去分词。Tve“证明是”半系动词，后接adj,nThetreatmentprovedtobesucessful.动态系动词：都属于半系动词，描述状态变化过程。get“变成，变得……起来”，后接形容那个词，分词，介词短语。Thedaysaregettinglongerandlonger.fall"进入（某种状态），成为"，后接以下形容词：asleep,lame,silent,ill,sick,flat.Theoldmen,unabletoexpresshimself,fellsilent.Myfatherfellillanddied.grow“渐渐变得…..起来，长得”It'sgrowingwarm.turn“转变成（新的与原来完全不同的色彩或性质），变质（色）”Mapletreesturnredinautumn.Itwascloudythismorning,butfortunatelyithasturnedfien.go,“变成（某种坏的状态）”Thetelephonehasgonedead.Thematerialhasgoneafunnycolour.Go之后常接adj.还有：bad,blind,wild,wrong,sour,hard,hungry,mad,red,with,anger,white,pale,blue,greybecome”变成，成为（好坏均可的情况）”Ibecameinterestedindrawing.Hebecameangrywithme.Te,“变成为（已知的状态），证实为”，后接形容词或前缀un-的过去分词作表语，表示状态或情况的变化。Hiswishtobecomeapilothascometrue.后面接的形容词还有apart,dear,natural,open,short,right,unstuck,untied.run“变成”，后接adj.Thepriceranhigh.make,“达到某种状态，后接形容词，如：sure,certain,merry,bold,free.Wemustmakecertainoffacts.D．双谓语系动词此类系动词既有系动词功能，后接表语，又保留原实义动词本身的含义。Thesunrosered.Shestoppedandstoodquitestill.Thesnowlaythickontheground.Hemarriedyoung.LeiFengdiedyoung.Hecontinuedsilent.表语从句练习1.Thequestioniswewillhaveoursportsmeetnextweek.A.thatB.ifC.whenD.whether2．Thereasonwhyhefailedishewastoocareless.A.becauseB.thatC.forD.becauseof3.Goandgetyourcoat.It'syouleftitA.whereB.thereC.therewhereD.wherethere4．TheproblemistotaketheplaceofTedA.whocanwegetB.whatwecangetC.whowecangetD.thatwecangetWhatIwanttoknowishelikesthegiftgivenbyus.A.thatB.fC.whetherD.不填ThereasonisImissedthebus.A.thatB.whenC.whyD.whatThatis_____wewerelatelasttime.A.thatB.whenC.whyD.whatShelookedsheweretenyearsyounger.A.thatB.likeC.asD.asthough—Ifellsick!--Ithinkitisyouaredoingtoomuch.A.whyB.whenC.whatD.becauseThereasonwhyhehasn'tcomeis.A.becausehismotherisillB.becauseofhismother'sbeingillC.thathismotherisillD.forhismotherisill—Hewasbornhere.--Thatishelikestheplacesomuch.A.thatB.whatC.whyD.howThatisLuXunoncelived.A.whatB.whereC.thatD.whythat/what的区别yourfatherwantstoknowisgettingonwithyourstudies.A.What;howareyouB.That；howyouareC.How；thatyouareD.What；howyouareThetroubleisweareshortoftools.A.whatB.thatC.howD.whythatAmericawaswasfirstcalled“India”byColumbus.A.whatB.whereC.theplaceD.therewhereChinaisbecomingstrongerandstronger.Itisnolonger.A.whatitusedtobeB.whatitwasusedtobeingC.whatitusedtobeingD.whatitwasusedtobehereallymeansishedisagreeswithus.A.What…thatB.That…whatC.What…whatD.That…whatTheenergyismakesthecellsabletodotheirwo