主语从句 优秀奖

Grammar:NounclausesasthesubjectDavidarrivedlastnight.Whoisspeaking,please?Twowillbeenough.Lookingupallthenewwordsinthedictionarytookhimalotoftime.Totranslatethisidealintorealityneedshardwork.Howtodowellisanimportantquestion.Whathashappenedprovesthatourpolicyisright.Underlinethesubjectsinthefollowingsentences.

n.

pron.

num.todov-ingphrasesentencesubjectclause主语从句一.主语从句：

在复合句中，主语不再是一个词或短语，而是一个从句，这个从句就叫主语从句。Thebookisinteresting.WhatIamreadingisinteresting.主语从句在复合句中作句子的主语。

willgothereisnotimportant.

weneedismoretime.

hesuddenlyfellillsurprisedme。

hebelievesitornotisnoteasytosaynow.

缺啥补啥，不缺看真假；三步做题法二.引导词：连接词:

that,whether,连接代词:who,whoever,whom,whomever,what,whatever,which,whicheverwhose.连接副词:when,where,how,why不可省当它引导的主语从句置于句首时，that不能省略；如果用it作形式主语，而把主语从句放在句末时，that可以省略。注1：whether与if引导主从whether与if引导主语从句有时可换用。但在下列情况下用whether不用if：(1)主语从句位于句首时；(2)从句有or或紧跟ornot时（whetherornot）。注:2：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】

通过分析上面例句，同学们可能会发现上面第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.Itisnothardtounderstandwhyhedidsoatthattime.Itisapitythatyoushouldhavemadesuchacarelessmistake.Itisreportedthatmorethanthirtydeathswerecausedintheaccident.三.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.+主语从句2.Itbe+adj.+主语从句，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+主语从句

Itseems/appears...+主从...

似乎…… Ithappened(tosb.)+主从...

（某人）碰巧……4.It+be+v-ed+主语从句

Itissaid/reported/believed/ suggested/known/proved+主从...【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”。将will置于trees之后。主语从句要用陈述句语序。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【巩固练习】(1)_____hetoldusthismorningwas justalie.(2)_____isimportanttousisenough time.(3)Itworriesmymom_____sheis beginningtogetalittlefat.(4)_____wecan’tgetseemsbetterthan _____wehave.WhatWhatthatWhatwhat【巩固练习】

(1)Itdoesn’tmatter___________hewill comeornot.(2)________we’llgocampingtomorrow dependsontheweather.(3)Itwasdoubtful___________Tom reallysawSharon.(4)________TomreallysawSharonwas doubtful.whetherWhetherwhether/ifWhetherIII.用适当的单词填空，使下列主语从句意思完整。1._______hefinishedwritingthecompositioninsuchashorttimesurprisedusall.2._______________wewillgoforanoutingtomorrowremainsunknown.3.Itisapity______wewon’tbeabletogotothesouthtospendoursummerholidays.ThatWhether/Wherethat4._______sheiscomingornotdoesn’tmattertoomuch.5._______hecamefromstillpuzzlesallofus.6.Ithappened_____Isawhimyesterday.7.Itdoesnotmakeanydifferencetome______youdo.WhetherWherethatwhat8._____wasresponsiblefortheaccidentisnotyetclear.9.____________________theywillhavethesportsmeetisstillaquestion.10.Itdoesn’tmatter______shelookslike.WhoWhen/Where/Whetherwhat1.他在找什么与你无关。IV.用主语从句翻译下列句子。2.他喜欢这种书，这件事非常有趣。3.他是否能来仍然是个问题。

heislookingforisnoneofyourbusiness.

helikesbooksofthiskindisveryinteresting.

Itremainsaquestion

hewillbeabletocome.5.飞机何时起飞还没有宣布。4.他们中的哪一个是从监狱里逃跑的，仍然是个谜。

escapedfromtheprisonisstillamystery.

theplaneistotakeoffhasnotbeenannounced./Ithasnotbeenannounced

theplaneistotakeoff.用适当的连接词填空。1._______willbesenttocarryoutthetaskhasn’tbeensettled.2.Itdoesn’tmatter__________itturnsouttobeagoodideaorabadidea.3._______we’lldoisleaveanoteforMumtotellherwewon’tbebacktilllate.4.______Johnwillarriveisunknown.Maybetwohourslater.5.It’spossible______hehasn’treceivedtheletter.Whowhether/if

What

Whenthat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:__