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Nounclausesasthesubject,主语从句,.,2,基本概念,.,3,什么是主语?,主语:是一个句子说明的人或事物,即叙述的主题,一般位于_。,句首,IlikeEnglish.Thetrainleft.,.,4,Jimisgoodatplayingthepiano.Toseeistobelieve.Smokingisbadforhealth.Whathehassaidistrue.,找出主语,(名词),(不定式),(动名词),(从句),.,5,主语从句(SubjectClause),在主从复合句中充当主语的从句就是主语从句,它是名词性从句之一。引导主语从句的连接词有:从属连词that,whether;连接代词who,what和which;连接副词when,where,how和why。,.,6,考纲专题解读,1.了解名词性从句的基本用法,掌握名词性从句的引导词及引导词在名词性从句中的作用,辨析that与what,if与whether等引导词的用法。2.明确it作形式主语和形式宾语、代替主语从句及宾语从句的用法,及其与强调句的区别。3.区分that引导的同位语从句及定语从句。,.,7,他通过了考试让老师很高兴。Hepassedtheexam.Itmadetheteacherhappy.Hepassedtheexammadetheteacherhappy.Thathepassedtheexammadetheteacherhappy.,理解主语从句,.,8,他何时要来还不清楚。Whenwillhecome?Itisnotclear.Whenwillhecomeisnotclear.Whenhewillcomeisnotclear.,理解主语从句,.,9,Thathewillsucceediscertain.Whetherhewillcomemakesnodifference.Whatweneedismoretime.,找出主语从句,Tip:先找谓语,.,10,Thathewillcomeiscertain.Whetherhewillcomeisuncertain.,引导词,1)从属连词that和whether:,_只起引导作用,本身无意义,不充当任何分,但不能省略。whether不做成分,表“_”。在主语从句中只能用_,不能用_,that,是否,whether,if,.,11,Whowillgomakesnodifference.Whatweneedismoretime.WhichbookIshallchoosehasntbeendecided.,2)连接代词who,what,which,引导词,.,12,Whoevercomesiswelcome.WhateverIhaveisyours.Whicheveryouwantisyours.,3)连接代词whoever,whatever,whichever,引导词,whatever=anythingthatwhoever=anyonewho,.,13,Whenwewillleavehasntbeendecided.Howshekeepshealthyisasecret.Whyhecriesisnotclear.Wherethemeetingwillbeheldisnotknown.,4)连接副词when,where,how,why,引导词,.,14,1.引导词:从属连词that,whether;连接代词who,what,which;whoever,whatever,whichever;连接副词when,where,how和why。2.语序:陈述句语序3.在主语从句中只能用whether,不能用if,主语从句的特点:,.,15,Itiscertainthathewillwinthematch.,Thathewillwinthematchiscertain.,注解:一般来说主语从句都是放在,但有时为了使句子,避免头重脚轻,常用作,从而把主语从句放在,句首,保持平衡,it,形式主语,后面,.,16,这样就构成了下面一些常用句型:1)Itis+n.+thatItisapity/shamethat.可惜的是Itisasurprisethat令人吃惊的是Itisafactthat事实是Itiscommonknowledgethat是常识*_(很可惜)welostthematch.*_(这是事实)hecheatedintheexam.,Itisapitythat,Itisafactthat,.,17,1.令人吃惊的是他改变了主意。Itisasurprisethathechangedhismind.2.真可惜你错过了这么一个好机会。Itisapitythatyoumissedsuchagoodchance.3.事实是我们周围的污染正变得越来越严重。Itisafactthatthepollutionaroundusisbecomingmoreandmoreserious.,.,18,2)Itis+adj.+thatItscertainthat肯定Itispossible/likelythat.很可能Itisobvious/clearthat很明显Itistruethat的确Itisnecessaryimportantnatural.that*_(很可能)shewillcomebacktomorrow.*_(很明显)heisanEnglish.,+(should)+do,Itispossiblethat,Itisobviousthat,.,19,1.很可能他会申请这项工作的。Itislikelythathewillapplyforthejob.2.的确我犯了个错误。ItistruethatImadeamistake.3.有必要我们要学习英语。ItisnecessarythatweshouldlearnEnglish.,.,20,3)It+不及物动词+thatIthappenedthat.碰巧Ithit/struck/occurredtomethat我突然想起Itappears/seemsthat似乎,好像Itturnedoutthat原来*_(刚好)Iwasoutyesterday.*_(我突然想起)Iforgottosendtheletter.,Ithappenedthat,Itoccurredtomethat,.,21,1.好像是我错了。ItappearsthatIamwrong.2.碰巧他得去参加一个会议。Ithappenedthathehadtoattendameeting.3.我突然想起他会说英语。ItoccurstomethathecanspeakEnglish.4.原来他是Mary的朋友。ItturnedoutthathewasMarysfriend.,.,22,4)It+be+过去分词+从句Itissaidthat.据说Itisknowntoallthat.众所周知Itisreportedthat.据报道Itisbelievedthat.据相信;人们相信Itissuggestedthat+(should)do.建议*_(据报道)20peoplewerekilledintheaccident.*_(建议)weshouldeatmorevegetableanddomoreexercise.,Itisreportedthat,Itissuggestedthat,.,23,1.据说他已经去了上海。ItssaidthathehasgonetoShanghai.2.众所周知台湾是中国的一部分.ItisknowntoallthatTaiwanispartofChina.3.有人建议我们应该多做运动。Itissuggestedthatweshouldtakemoreexercise.,.,24,主语从句的规律,.,25,例1.Whenwillhecomeisnotknown.,规律一、主语从句一律用陈述语序,即主语在前,谓语在后。,正:Whenhewillcomeisnotknown.,.,26,例2.Hewillnotcometothemeetingthiseveningistrue.,正:Thathewillnotcometothemeetingthiseveningistrue.,规律二、连词that在从句中无实际意义,但不能省略。,.,27,例3.Ifthemeetingwillbeputoffhasnotbeendecidedyet.,正:Whetherthemeetingwillbeputoffhasnotbeendecidedyet.,规律三、whether可以引导主语从句,放在句首,但if不能,.,28,例4.Whenhewillcomeareapuzzle.,正:Whenhewillcomeisapuzzle.,规律四、主语从句的谓语动词多用单数第三人称形式。,.,29,Whenthemeetingwillbegin_(have)notbeendecidedyet.,has,Whentheywillstartandwheretheywillgo_(be)stillunknown.,Whenandwherethemeetingwillbegin_(have)notbeendecidedyet.,are,has,.,30,例51.Whatheneeds_thatbook.2.Whatheneeds_somebooks.,规律五、what引导的主语从句,可根据表语决定主句动词的单复数形式。,is,are,.,31,小试牛刀,.,32,他是不是我的孩子仍然是个问题。,Whetherheismychildremainsaquestion.,.,33,WhatIlikemostisyourhairstyle.,我最喜欢的是你的发型。,.,34,WhatIneedisrest.,我需要的就是休息。,.,35,HowDuLalabecomessuccessfuldependsonherhardwork.,杜拉拉如何成功取决于她的勤奋。,.,36,Itiscommonknowledgethatweshouldwearrainshoesonrainydays.,雨天要穿雨鞋(rainshoes)是常识。,.,37,链接高考,【2013北京】31._makesthebooksoextraordinaryisthecreativeimaginationofthewriter.A.ThatB.WhatC.WhoD.Which【2013四川】6._yousaidatthemeetingdescribesabrightfutureforthecompany.A.WhenB.HowC.WhatD.That,.,38,【2013天津】15._IwanttotellyouisthedeeploveandrespectIhaveformyparents.A.ThatB.WhichC.WhetherD.What【2013重庆】28._struckmemostinthemoviewasthefathersdeeploveforhisson.A.ThatB.ItC.WhatD.Which【2013江西】30._oneofyoubreaksthewindowwillhavetopayit.A.WhoeverB.WhateverC.WhicheverD.Wherever,.,39,【2013陕西】20.Itremainstobeseen_thenewlyformedcommitteespolicycanbeputintopractice.A.thatB.whichC.whatD.whether【2012新课标全国I】24.Itisbynomeansclear_thepresidentcandotoendthestrike.A.howB.whichC.thatD.what【2012天津】9.Itdoesntmatter_youturnrightorleftatthecrossing-bothroadsleadtothepark.A.whetherB.howC.ifD.when,.,40,考法总结,考查内容:名词性从句是高考考查的重点和热点,命题方式非常灵活:1.把它与定语从句和状语从句的知识点放在一起进行考查,对名词性从句的考查主要涉及语序问题、时态的呼应问题和连接词的选择问题,尤其是that和what的辨析。whether和if的用法区别。

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