高一英语名词性从句讲解.docx
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高一英语名词性从句讲解
名词性从句
1.种类
2.宾语从句的时态。
3.that什么情况下可以省略,什么情况下不可以省略。
4.whether和if什么时候可以互换,什么时候不可以互换。
5.如何区分同位语从句与定语从句。
完成以下题目,并分别指出它们是什么从句
1.______thebabycouldspeakmadehisparentsveryhappy.
A.ThatB.WhatC.WhyD.If
2.Iwonder______youwillgoshoppingorstayathome.
A.thatB.ifC.whetherD.what
3.Thisis______hewasoftenlateforschool.
A.whatB.thatC.whyD.whether
4.Weallknowthetruth______theearth______aroundthesun.
A.if;movedB.that;movesC.why;moveD.whether;move
一.名词性从句的概念:
一个句子在连接词的引导下,在句子中起名词作用的句子叫名词性从句。
二.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。
Hisjobisimportant.(主语)
Whathedoesisimportant.(主语)
Thisishisjob.(表语)
Thisiswhathedoeseveryday.(表语)
Idon’tlikehisjob.(宾语)
Idon’tlikewhathedoeseveryday.(宾语)
Idon’tknowaboutthefactthatheisateacher.(同位语)
Idon’tknowabouttheman,Mr.White.(同位语)
得出结论:
因此根据它在句中不同的语法功能,名词从句又可分为四类,即:
主语从句、宾语从句、表语从句和同位语从句。
三.引导名词性从句的连接词:
1、连接代词:
who,whoever,whose,whom,whomever,what,which。
有词义,在从句中担任成分,如主语、表语、宾语、或定语等。
●Idon’tbelieve__________hehasachievedsofar.
●__________breaksthelawshouldbepunished.
2、连接副词:
when,where,why,how。
有词义,在从句中担任成分,作状语。
●__________wewillhandintheprojectwillbediscussedlater.
●Parentsarethoughttounderstand__________importanteducationistotheirchildren’sfuture.
●Thereason__________hewasabsentwasthathewasill.
3、连接词:
that,whether,if,asif,asthough。
that无词义,在从句中不担任成分,有时可省略;if(whether),asif虽有词义,但在从句中不担任成分。
●Idon’tcareabout__________youhavemoneyornot.
●Theproblemis__________Tomisabletoarriveontime.
●__________themeetingwillbeheldhereisnotdecidedyet.
●Itlooks__________itisgoingtorain.
●Thetruthis__________hedidn’tcomefortheconcert.
●__________theearthisroundistrue.
四.名词性从句的类型:
1.主语从句:
在复合句中作主句的主语。
连接词有that,whether;who,what,which;when,where,how,why等。
如:
●__________heisafamoussingerisknowntous.
●__________hewillgotoAmericaisnotyetfixed.
●__________she’scomingornotdoesn’tmattertoomuch.
●__________broketheglassyesterdayisnotclear.
注意:
1.为避免主语冗长,句子头重脚轻,经常用it作形式主语,主语从句放在后面作真正的主语。
记住以下it作形式主语的句型:
It’slikely/possible/important/necessary/clearthat…很可能/重要的是…/必要的是…/很清楚…
It’ssaid/reportedthat…据说/据报道…
Itseems/appears/happensthat…显然、明显、碰巧…
It’sbeenannounced/declaredthat…已经通知/宣布…
It’snowonderthat…并不奇怪/无疑…
It’sapity/afact/acommonknowledge(众所周知)/acommonsaying(俗话说)that…
●Itworriedherabit______herhairwasturninggrey.
A.whileB.thatC.ifD.for
●Itremainsaquestion______wecangetsomuchmoneyinsuchashorttime.
A.howB.thatC.whenD.what
●Itisknowntous______wherethereispollution,thereisharm.
A.whichB.whereC.whatD.that
2.单个的主语从句作主语时,谓语动词用句单数形式;如果是两个或两个以上的主语作
主语,谓语动词则视情况而定。
Whenandwherehewasbornhasn’tbeenfound.
Whenhewasbornandwherehewasbornhaven’tbeenfound.
Whenandwhythepersonwasmurderedisstillunknown.
Whenthepersonwasmurderedandwhyhewasmurderedarestillunknown.
Exercises:
●.______makesthisshopdifferentisthatitoffersmorepersonalservices.
A.WhatB.WhoC.WhateverD.Whoever
●______Icanpaybackthehelpthatpeoplegivememakesmeveryhappy.
A.WhereB.WhatC.ThatD.How
●It’snotclear______wasresponsiblefortheaccident.
A.WhoB.WhatC.HowD.That
●______intheregulationsthatyoushouldnottellotherpeoplethepasswordofyoure-mail
account.
A.WhatisrequiredB.WhatrequiresC.ItisrequiredD.Itrequires
2.表语从句:
在复合句中作主句的表语。
引导词有连词that,whether,asif,asthough;who,what,which,whose;when,where,how,why,because等。
如:
●Theproblemis_________wedidn’tgetintouchwithhim.
●Thisis_________Henrysolvedtheproblem.
●Hissuggestionis_________we(should)finishtheworkatonce.
●Itlooked_________itwasgoingtorain.
●Thereason_________wedidn'ttrusthimis_________hehasoftenlied.
注意:
1.如果句子的主语是suggestion,advice,order,demand,proposal等名词时,后面引导的表语从句用should+动词原形,should可省略。
他的建议是我们应该马上完成工作.Hissuggestionisthatwe(should)finishtheworkatonce.
2.Thereasonisthat……的理由是,…的原因是…
Thereason__________hewaslateagainwas__________hewascaughtinthetrafficjam.
Thereason______Ihavetogois______mymotherisillinbed.
A.why;whyB.why;becauseC.why;thatD.that;because
3.Itisbecause…这是因为…
Exercises:
●Thisis______shewasborn.
A.whereB.whichC.thatD.what
●Thequestionis______wecan’tgotheretoday.
A.thatB.whatC.whichD.when
●Thereasonhehasmadesuchgreatprogressis______hehasneverwastedhistime.
A.becauseB.whyC.thatD.what
●Myadviceisthathe______schoolbybike.
A.gotoB.wouldgotoC.goestoD.wentto
●______shecouldn’tunderstandwas