表语从句课件-高三英语上学期一轮复习专项

高考语法一轮复习PredicativeClauses表语从句1.Thedefinitionofpredicativeclause.Thequestioniswhowilldoit.Thequestionisdifficult.在复合句中充当表语的从句叫表语从句。位于主句的系动词之后，对主语进行解释、说明，使主语的内容具体化。表语从句必须用陈述语序。（表）（表）表语从句2.Thestructureofpredicativeclause.主语+系动词+引导词

+简单句Thisiswhyhedidit.表语从句在复合句中，位于_________之后，充当________的名词性从句称作表语从句。表语系动词可以接表语从句的系动词有:be动词:amisare;感官动词：look，feel,sound,taste,smell;表象系动词：seem（仿佛）,appear（似乎）持续性动词：remain,keep,stay;变化系动词：become,get,grow,turn,go,come,run,fall;终止系动词：prove（证明是）,turnout（结果是）表语从句的概念连接词从属连词在从句中不作成分that,whether,asif/asthough,because无含义/是否/似乎/好像连接代词在从句中作主语、宾语、表语、定语what,who,whom,which,whatever,whoever,whomever,whicheverwhose连接副词在从句中作状语when,where,how,why表从中不用if考点一

知识点1表语从句的引导词

表语从句的构成及引导词引导表语从句的连接词有三类：连词that、whether，because,asif/though疑问代词who,what,which，whom,whose,whatever,whoever,whomever,whichever;疑问副词when,where,how,why，however,whenever,wherever等1.从属连词that引导的表语从句Thefactisthathewaslying.Thereasonisthattheynevergiveup.Hissuggestionisthatweshouldtellhim.

Oneideaisthatfishisthebestbrainfood.that仅起_______作用，______(有/无)词义，______(是/否)充当句子成分，通常________(能/不能)省略。无不能否连接1.从属连词whether引导的表语从句Thequestionisifwecanfinishourwork.Thequestioniswhetherthefilmisworthwatching.

Thedoctor’sdoubtiswhethershewillsurvive.

whether起_________作用，意为“_______”，在句中_________(是/否)作成分。(注意：if______(能/不能)引导表语从句)。连接是否不不能2.连接代词what(ever),which,who(ever),whom(ever),whose等引导的表语从句

Myhometownisnolongerwhatitusedtobe.

Theproblemiswhowecangettoreplaceher.Theproblemiswhoseworkisthebest.Thequestioniswhatcausedtheaccident.连接代词在句中起_______作用，还在从句中还充当______、______、______、_______,______(有/无)意义，________(能/不能)省略。连接表语宾语定语主语有不能3.连接副词when,where,how,why引导的表语从句Theproblemishowwecanfindhim.ThatiswhereIfirstmether.That'swhyIobjecttotheplan.Thanksgivingiswhenpeoplecelebratetheharvest.连接副词在句中起________作用,还在从句中充当_______,_______，______，_______状语，________(能/不能)省略。连接方式地点原因时间不能Thisis__________Iwant.MyEnglishislimited.Thisis_______IhatereadingEnglishbooks.Thevillageis_________Iusedtospendmyholiday.Itis___________Ireallylovethewayhebehaves.Thetroubleis__________weareshortoffunds.Myproblemis__________coatissuitableforme.I‘

d

like

to

startmyownbusiness—that’s________IwanttodoifIhadthemoney.WhatIwanttoknowis_______willsupportme.即学即练learningandpracticewhatwherewhybecausethatwhichwhatwho考点一

知识点2表语从句三大易混句式

表语从句的构成及引导词主语为名词reason时，表语从句的引导词要用that，一般不用why或because。句式用法例句This/'Thatiswhy+结果意为"这那就是.....toworkthere.那就是的原因"，why引导表语从句。That'swhyIwantyoutoworkthere.我想要你在那儿工作的原因。This/That/It

isbecause+原因意为"这/那是因为.....，because引导表语从句。It'sjustbecausehe|doesn'tknowher.这这仅仅是因为他不认识她

。The

reasonwhy...isthat...意为".....的原因是…”，why引导定语从句,that引导表语从句。Thereasonwhyhedidn'tcomewasthatitwasrainingheavily.他没有来的原因是(当时)雨下得很大。1.Hefailedintheexam.That's_______hefeltfrustrated.feltfrustrated.failedintheexam.why做成分(状语)，有意义，不能省略1.表从中易错连接词whybecause2.Hefeltfrustrated.That's__________hefailedintheexam.because3.Thereasonwhyhefeltfrustratedwasthathefailedintheexam.考点一

知识点3表语从句中的虚拟语气

表语从句的构成及引导词as/asif/asthough引导的表语从句常跟在特定动词后面，如seem，appear，look，taste，sound，feel等。当as/though引导的表语从句时，从句动作可根据动作发生的真实情况与否用虚拟语气或真实语气。Itseemsasifsomeoneisbakingacake.闻起来好像是有人在烤蛋糕。（根据气味推断，很可能真的有人在烤）主句主语是advice,suggestion,order,request,requirement,proposal,resolution(决心),idea,motion（提议）,command,desire（愿望）,wish,等名词时，表语从句的谓语动词常用“(should)+动词原形”形式。Mysuggestionisthatwe(should)haveadiscussionaboutthismatterinsteadofjustlayingitaside.我的建议就是我们应当讨论一下这个问题，而不是把它放在一边。asif/asthough引导的表语从句如果与事实不符，用虚拟语气;如果是事实或者有发生的可能性，用陈述语气1.Itsoundsasifsomeone___knockingatthedoor.(与事实相符)2.Tomlikestotalkbigasifhe______(be)animportantperson.(对现在的虚拟，用一般过去时，be动词用were)3.Hetalksasifhe_______becomepresidenttomorrow.(对将来的虚拟，用would/could/might/should+do)4.HetalkedaboutRomeasifhe__________(be)there.(对过去的虚拟，用haddone)iswerewouldhadbeen1.Thequestionis____wewillhaveoursportsmeetnextweek.A.thatB.ifC.whenD.whether2.Thereasonwhyhefailedis____hewastoocareless.A.becauseB.thatC.forD.becauseof3.Goandgetyourcoat.It's_____youleftit.A.whereB.thereC.therewhereD.wherethere课堂练习√√√【完成句子】thathedidn’treallytry

whetherthefilmisworthseeingitseemsasif1)Thefactwas_____________________________.

事实是他没有真正地尝试。2)Thequestionis____________________________.

问题是这部电影是否值得看。3)Now_______________shehadknownMillieforyears.

现在看起来好像她认识米莉已有好多年了。4)Myadviceisthatyou_____