高三一轮复习-主语从句课件

高三一轮复习-主语从句Whatissubject?Davidarrivedlastnight.Whoisspeaking,please?Twowillbeenough.Lookingupallthenewwordsinthedictionarytookhimalotoftime.Totranslatethisidealintorealityneedshardwork.Howtodowellisanimportantquestion.Whathashappenedprovesthatourpolicyisright.Underlinethesubjectsinthefollowingsentences.

n.

pron.

num.todov-ingphrasesentencesubjectclauseFindalltheexamplesinthereadingpassagewherenounclausesareusedasthesubject.()()()()(()()())()()名词性从句：名词性从句的功能：名词性从句的类型：在句子中起名词作用的句子叫名词性从句。名词性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、介词宾语等，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。大家学习辛苦了，还是要坚持继续保持安静主语从句在复合句中作句子的主语。引导主语从句的词有从属连词:that,whether,if；连接代词:who,whoever,whom,what,whatever,whose,which；连接副词:when,where,how,why等。观察下列例句，指出其中所包含的主语 从句及引导词:1.Whatisneededforalongtripiscareful preparation.

该句中主语从句是__________________

_________，引导词为_____。Whatisneededforawhatlongtrip2.ThatJayZhouwillcometomycity exciteseverybody.

该句中主语从句是_______________________________，引导词为_____。3.Whetherwewilltravelabroadornot hasnotbeendecided.

该句中主语从句是___________________________________，引导词为 _________。ThatJayZhouwillWhetherwewillcometomycitythattravelabroadornotwhether4.Whoeverknowsthesecretmustn’ttell others.

该句中主语从句是________________________，引导词为________。5.Itremainsapuzzlewhydinosaursdied outsuddenlylongtimeago.

该句中主语从句是_________________ _______________________，引导词为 _____。Whoeverknowsthewhoeverwhydinosaursdiedwhysecretoutsuddenlylongtimeago【观察总结】第5句中的主语从句似乎比较隐蔽。其实，这也是主语从句的一种呈现方式，即：当一个句子主语过长时，可以用it作形式主语，而把真正的主语或主语从句后移至句子末尾，以保持句子的平衡。注意观察下列例句中的划线部分：Itisnotclearhowtheaccidenthappened.Itisapitythatyoushouldhavemadesuchacarelessmistake.IthappenedthatIdidn’tbringthekeywithme.Itisreportedthatmorethanthirtydeathswerecausedintheaccident.不难看出，虽然上面例句中都用it作形式主语，但句子结构却不尽相同。现将常见的由it作形式主语的句型总结如下：1.Itbe+n.+that从句2.Itbe+adj.+that从句，常见此类形容 词有：important,necessary,clear, certain,natural,strange,obvious, likely,impossible,possible等。3.It+不及物动词+that从句

Itoccurredtosb.that...

某人想起… Ithappened(tosb.)that...

（某人）碰巧……4.It+be+v-ed+主语从句

Itissaid/reported/believed/ suggested/known/provedthat...【要点精讲】1.what与that引导主语从句 观察下列例句，试着翻译例句并总结 其规律。(1)Whatyoulackisself-confidence.译为：_________________________你所缺乏的是自信。(2)Thatmoreandmorestudentsare admittedintouniversitiesistrue.译为：______________________________________________________(3)Whatisneededfortheprogramis morewisdom.译为：_____________________________这个项目所需要的是更多的智慧。越来越多的学生将被大学录取的消息是真实的。从上面例句可以看出，that引导主语从句时，在句中具有“两不”原则：一、引导从句；二、不作句子成分；三、没有实际意义。而what引导的从句则恰恰相反，what在从句中的作用为：一、引导从句；二、作句子成分；三、有具体的意义。【巩固练习】用what或that填空。(1)_____hetoldusthismorningwas justalie.(2)_____isimportanttousisenough time.(3)Itworriesmymom_____sheis beginningtogetalittlefat.(4)_____wecan’tgetseemsbetterthan _____wehave.WhatWhatthatWhatwhat2.whether与if引导主语从句whether与if引导主语从句位于句中有时可换用。但在下列情况下用whether不用if：(1)主语从句位于句首时；(2)从句后有or或紧跟ornot时。【巩固练习】用whether或if填空。(1)Itdoesn’tmatter___________hewill comeornot.(2)________we’llgocampingtomorrow dependsontheweather.(3)Itwasdoubtful___________Tom reallysawSharon.(4)________TomreallysawSharonwas doubtful.whether/ifWhetherwhether/ifWhether3.其它引导词连接代词who,which,whom,whose有各自的具体意义，起连接作用，同时在从句中充当主语、宾语、表语、定语等；whoever,whatever,whichever在意义上更为强调，常译为“无论……”；连接副词when,where,why,how等也有各自的意义，起连接作用，并在从句中作状语。【常见错误展示】下列各句均有一处错误，请改正并分析错误的原因。1.Lighttravelsfasterthansoundiscommonknowledge.Thatthat虽无词义但引导主语从句位于句首时不能省略。if,whether都可表示“是否”,但if不能引导句首主语从句。2.Ifshe’scomingornotdoesn’tmattermuch.Whethershe’scomingornotdoesn’t3.Whatwereyourproblemsayear agohasnowbecomemine.has要改为have。主语从句表示复数概念时，谓语要用复数形式。have4.Thattheprofessorsaidisofgreatimportance.5.Wherewillthetreesbeplantedhas notbeendecided.Whatthat引导主语从句时无词义。Whattheprofessorsaid表示“教授所说的话”。将will置于trees之后。主语从句要用陈述句语序。6.Nomatterwhobreakstherulewill bepunished.7.Whenandwherethemeetingwillbe heldstillremainaquestion.引导让步状语从句时二者可互换，但引导名词性从句时只能用whoever。Whoever主语从句表示单一概念时，谓语要用单数形式。remainsRewritethefollowingsentenceswithnounclausesasthesubject.1.Hisdiscoveryhasnotyetbeenproved.2.Dotheotherastronomersaccepthisideas?Itremainsaquestion.Whathasnotyetbeenprovedishisdiscovery.Whethertheotherastronomersaccepthisideasremainsaquestion.3.Thefirstappearanceoflifeonearthisstillamysterytoscientists.4.Whyistheearthbecomingwarmer?Itisanimportanttopicforresearch.Howlifefirstappearedonearthisstillamysterytoscientists.Whytheearthisbecomingwarmerisanimportanttopicforresearch.5.StephenHawkingat65experiencedzerogravityduringaflight.Itamazedeverybody.6.Plutoisnolongerconsideredaplanetinoursolarsystem.Whatasurprise!ItamazedeverybodythatStephenHawkingat65experiencedzerogravityduringaflight.ItisasurprisethatPlutoisnolongerconsideredaplanetinoursolarsystem.Alloflifeisanactoflettinggo,butwhathurtsthemostisnottakingamomenttosaygoodbye.人生就是不断地放下，但最令人痛心的是，我们来不及好好告别。Linefromthefilm‘LifeofPi’Enjoymoreclausesusedasthesubject.subjectclauseIt’srarethatIfindsomeonesonon-patronizing.Linefromthefilm‘Zootopia’subjectclauseWhatpainsustrainsus.Whatdoesn’tkillusmakesusstronger.Whathurtsusthemostteachesusthebest.使我们痛苦的东西在真正锻造我们。没有要我们命的事情让我们更强大。伤害我们最深的教会我们最多。subjectclauses用适当的连接词补全下面的对话。Lucy:Whyareyoulookingsohappy?Jenny:I’vejustattendedalecture.________thespeakersaidmademeexcited.Lucy:Whatwasitabout?Jenny:Abouthealth.Itseems______alotofpeopledon’tknowhowtokeephealthy.What

that

ExercisesLucy:Soundsgreat.________I’mconcernedaboutismyhealthconditionatthemoment.ButwhatshouldIdotobehealthy?Jenny:________youwillstayhealthydependsontwofactors—exerciseanddiet.Lucy:

YouknowIalwaysdosomerunningontheroadeverynight.What

WhetherJenny:Whetheryoutakeexerciseisonething,but________youtakeexerciseisquiteanother.Youshouldn’trunatnightbecauseitwillaffectyoursleep.Besides,________youdoyourrunningisn’tfavorable.You