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圆满版初中英语从句知识点总结概括圆满版初中英语从句知识点总结概括圆满版初中英语从句知识点总结概括从句一. 定义:宾语从句是指在一个句子中充任宾语的句子如:Hesaidthathewantedtobeateacherwhenhegrewup.二. 宾语从句有三各样类:1.由隶属that引的从句表示述意,that常可被省略。比方:Ihope(that)theywillhavefun.Marysaidthatshefeltsleepy.Can’tyousee(that)’Imabird?注意:(1)当主句的是think,believe等,从句只管要表示否认意,却不用否认形式,而将think等否认形式。如:Idon’tthinkhewillcome.我他不会来。2)两个表示述意的从句并列,有省去第一个从句的that,但第二个从句的that一般不能够以省略。如:Hetoldme(that)theycouldnotdecidewhattodoandthattheyaskedmyadvice.2.由隶属if或whether引的从句表示“可否(有,能,已⋯⋯)”等一般疑句的含。比方:Iwonderwhether(if)heliveshere.3.由接代who,whom,whose,what,which和接副when,where,how,why等引的从句表示“,的,什么,哪(个,些),何,何地,怎,什么”等等特别疑句的意。除了接及被修的提前以外,从句用述句序。比方:Tomaskedwhocouldgivethemessagetohermother.Doyouknowwhathesaidjustnow?Iwonderedhowoldhisbrotherwas..宾语从句的时态响应:“主现则从任,主过则从过,客观真理一般现”1.当主句是在或将来的候,从句能够用所需要的任何。2.主句是去,从句一般只能用去的某种形式;当从句表达的是客事或一般真理,从句仍旧用在。3.情must一般不用于去,但却能够用于主句是去的从句中。四.宾语从句的语序从句的接后加述序(主在前,在后)如:Iwanttoknowifhecancometomorrow当接自己又是从句的主,后边直接加如:Sheaskedmewhohadhelpedhim状从句英中,修、形容、副等的句子成分叫状。状的功用:状明地址、、原因、目的、果、条件、方向、程度、方式和陪同情况等,依照状的功能状从句可分:状从句、原因状从句、目的状从句、果状从句、条件状从句。一.状从句:在一个句子中作状的句子。状的接:when(当⋯候)while(当⋯候)as(当⋯候)after(在⋯今后)before(在⋯以前)assoonas(一⋯就)since(自从⋯到在)till/until(直到⋯才)bythetime(到⋯止)仍旧是接后加述序。when当⋯的候(一般情况下:主将从)IwillbecomeateacherwhenIgrowupwhile当⋯Hevisitedalotofplaceswhilehewastraveling.3. as 在⋯的同;一⋯一⋯Hesmiledashestoodup.4. after 在⋯今后Helefttheclassroomafterhehadfinishedhishomeworktheotherday.before在⋯以前Mr.Brownhadworkedinabankforayearbeforehecamehere.assoonas一⋯就⋯(一般情况下:主将从)Webegantoworkassoonaswegotthere.IwillwritetoyouassoonasIgethome.7. since 自⋯以来 到在表示自去的一个起点到当前()止的一段持。主句一般用在达成,从句用一般去。MrGreenhastaughtinthatschoolsincehecametoChinathreeyearsago.可(以用作介,本句从句能够用短:8 till/until 直到

sincethreeyearsago(自三年前以来

)表示。)都能够作,接状,也能够作介,与其他组成介短,在句中作状。Theywalkedtill/untilitwasdark.XiaoMingdidn ’tleavehometill/untilhisfathercame.backbythetime到⋯止(所在句子的主句用在或去达成)Bythetimehegetsthere,hisfatherhasalreadygone.BythetimeIgottoschool,theclasshadalreadybegan.用法辨析:1.when,while和as的差别When引的从句的能够是延性的,又能够是瞬。而且when有表示“就在那”。比方:Whenshecamein,Istoppedeating. 她来,我在吃。(瞬)WhenIlivedinthecountryside,Iusedtocarrysomewaterforhim.当的住在村,我经常他挑水。(延性的)Wewereabouttoleavewhenhecamein. 我就要走开,就在那他来了。While 引的从句的作必是延性的,并主句和从句的作同生(或许相)。而且while有能够表示比。比方:Whilemywifewasreadingthenewspaper,IwaswatchingTV.Ilikeplayingfootballwhileyoulikeplayingbasketball.我喜踢足球,而你喜打球。(比)As表示“一⋯⋯一”,as引的作是延性的作,一般用于主句和从句作同生;as也能够“一先一后。比方:Wealwayssingaswewalk.我是走唱。(as表示“一⋯⋯一”)Aswewasgoingout,itbegantosnow.当我出,开始下雪了。(as句中两个作接着先后生,而不开始下雪的特定)aswhenwhile都表示主、从句作同生,三者差别以下:as表示“一。。。一"的意思when1、能够表示从句的作在主几句的作"以前 "或"今后"生。2、when=andthen;atthatmoment正(在那个候)3.常用于常搭配中while1、用于2、两个作同行,并表示比有三个能够互,有不能够以。ltwasraininghardwhen(as)Igotthere.我到那边,正在下大雨。(作同生,when可as,但不能够while,因get是点.)WhenIhadreadthearticle,hecalledme.我看完篇文章今后,她我打了。(从句作生在主句以前,注意表达,只能用when)WhenIgottothecinema,thefilmhadbegun.(当)我到了影院,影已开演了。(从句的作生在主句今后,只能用when,并要注意)Hewasabouttoleave,whenthetelephonerang.他正要走开,忽然响了。(此不能够放在句首。主句一般表达“正在”“立刻”.while,as不能够代替ShethoughtIwastalkingaboutherdaughter,while,infact,Iwastalkingaboutmydaughter.他以我在她女儿,但是,上在我女儿。(表折,比,when,as都不能够代替它)Whilethealienwasbuyingasouvenir,thegirlcalledthepolice.外星人念品,那女孩警察打了。(表示主句,从句的作同生,while后引的状从句的必是延不能够是点,因它表示)MotherwasworriedbecauselittleAlicewasill,especiallyas(when/while)fatherwasaway.担忧,因小病了,特是他父不在家的候。(此as,when,while可通用)由till或until引的状从句。till和until一般情况下两者能够互,但是在句型中多用until。而且要注意的是:若是主句中的是瞬,必用否认形式;若是主句中的是延性,用必然或否认形式都能够,但表达的意思不同样样。比方:Iworkeduntilhecameback我.工作到他回来止。Ididn'tworkuntilhecameback.他回来我才开始工作。由since引的状从句。since引的从句的能够是延性的,又能够是瞬。一般情况下,从句用一般去,而主句的用在达成,表述:在达成+since+一般去。但在Itis++since从句的句型中,主句多用一般在。比方:ItisfivemonthssinceourbosswasinBeijing我.老板走开北京有五个月了。知展Itis⋯since从⋯.以来多了Itisfiveyearssincewemetlasttime.Itis⋯+before⋯(。。。才。。。)ItwasalongtimebeforeIwenttosleepagain.Itwasanhourbefore(=until)thepolicearrived..原因状从句:在一个句子中作状的句子。接:由because,since,as引,也可由for,nowthat等引1.Ididn ’tgotoschoolyesterdaybecauseIwasill.2.Sinceeverybodyishere,let ’sbeginour既meeting然。。。.Asyouareinpoorhealth,youshouldnotstayuplate.既然。。。4.Iaskedhertostaytotea,forIhadsomethingtotellher..用法辨析:because,since,as,for辨析1)because最,用来明人所不知的原因,回答why提出的。当原因是而易的或已人所知,就用 as或since。Ididn’tgo,becauseIwasafraid.Since/Astheweatherissobad,wehavetodelayourjourney.2)由

because引的从句若是放在句末,且前面有逗号,能够用

for

来代替。但若是不是明直接原因,而是多种情况加以推断,就只能用 for。Heisabsenttoday,because/forheisill.Hemustbeill,forheisabsenttoday.三、条件状从句接:if若是,unless(=ifnot) 若是不、除非(步)Ifitdoesn’traintomorrow,wegowillhiking.Iwillgotothepartyunlesshegoestheretoo.Youwillbelateunlessyouleaveimmediately.=Ifyoudon’tleaveimmediately,youwillbelate.条件状从句:主将从 .Hewillnotleaveifitisn ’tfinetomorrow.四、目的、果状从句目的状从句是指在一个句子中充任目的状的句子。果状从句是指在一个句子中充任果状的句子目的状从句接 sothat,so⋯that,inorderthat引。果状从句接 so⋯that,such⋯that,somuch/many⋯that引。so⋯that这样⋯致使于sothat致使于,以便于such⋯that这样⋯致使inorderthat=sothat了Weshallletyouknowthedetailssooninorderthatyoucan/maymakeyourarrangements.5.比:so和such其律由so与such的不同样样性决定。such是形容,修名或名,so是副,只能修形容或副。so可与表示数量的形容many,few,much,little用,形成固定搭配。soniceaflower suchaniceflowersomany/fewflowers suchniceflowerssomanypeople suchalotofpeoplesomany已成固定搭配,alotof相当于many,但alotof名性的,只能用such搭配。)点so+形容或副 so+形+a(an)+数可数名so+many/few+复数可数名so+much/little+不能够数名so⋯that与such⋯that皆可引目的地状从句和果状从句。Theboyissoyoungthathecan’tgotoschool.Heissuchayoungboythathecan’tgotoschoolso+adj/adv.+that,such+n.+that以上两种句型都表示果so副,后接形容,副原型,可数名前有 many,few;不能够数名前有much,little修,采用句型:somany(few,much,little)+n.such形容,后只能接名。名既能够地可数的,也能够是不能够数的。若是名是可数的 ,必在名前加不定冠 a(an).常的形式是:sucha(beautiful)garden,such(nice)people.五、步状从句步状从句是指在句子中作步的状的句子接:though,although.,whether⋯ornot点:though,although当“然”,都不能够和but用.Although/though⋯but的格式是不的.但是他都能够同yet(still)用.因此thought(although)⋯yet(still)的格式是正确的.Wrong:Althoughheisrichbutheisnothappy.Right:Althoughheisrich,yetheisnothappy.然他很富饶,但是他其实不快.Right:Althoughwehavegrownup,ourparentstreatusaschildrenRight:Althoughwehavegrownup,ourparentsstilltreatusaschildren.只管我已大了,但是我的父亲母亲仍把我看作小孩 .although,though辨析although不能够作并列,although不能够作副,放在尾表示要用 eventhough.1、EventhoughIdidn’tunderaword,Ikeptsmiling. 只管典型例1)___sheisyoung,sheknowsquitealot.A.When B.However C.Although D.Unlesseverif,eventhough.即使We’llmakeatripeventhoughtheweatherisbad.3)whether⋯ornot 不论⋯⋯都Whetheryoubelieveitornot,itistrue.nomatter 从句构:"nomatter+特别疑疑+述序"或"特别疑+后ever+述序"Nomatterwhathappened,hewouldnotmind.Whateverhappened,hewouldnotmind.替:nomatterwhat=whatevernomatterwho=whoevernomatterwhen=whenevernomatterwhere=wherevernomatterwhich=whichevernomatterhow=however注意:nomatter不能够引主从句和从句。()Nomatterwhatyousayisnotusefulnow.()Whateveryousayisnotusefulnow.你在什么也没用了。(Whateveryousay是主从句)()Prisonershavetoeatnomatterwhatthey’regiven,()Prisonershavetoeatwhateverthey’regiven. 监犯只能什么吃什么定语从句定是指在句子中用来修名、代的成分定从句是指在一个句子中作定的句子,定从句要放在所修的后如:IhavemetthedoctorwhoisintheNo.1hospital.定从句的接:1.接代:who、which、whom、whose、that2.接副:when、where、why用接的关是看先行 (定从句所修的名或代 )一、接代的用: 指人,先行人,在从句中做主YesterdayIhelpedanoldmanwholosthisway.whom指人,先行词为人,在定语从句中充任宾语,常可省略。Mr.Liuistheperson(whom)youtalkedaboutonthebus.注意:关系代词whom在口语和非正式语体中常用who代替,可省略。3.which指物,先行词为物,在定语从句中做主语或许宾语,做宾语时可省略Thisisthepen(which)heboughtyesterday.that指人时,相当于who或许whom;指物时,相当于which。在定语从句中做主语或许宾语,做宾语时可省略。Thenumberofthepeoplethat/whocometovisitthecityeachyearrisesonemillion.Whereisthemanthat/whomIsawthismorning?whose平常指人,也可指物,在定语从句中做定语,译成"...的"Hehasafriendwhosefatherisadoctor.指物时,常用以下构造来代替Doyoulikethebookwhosecoverisyellow?=Doyoulikethebookthecolorofwhichisyellow?介词+连结代词引导的定语从句连结代词在定语从句中做介词宾语时,从句常由介词+连结代词引导Theschool(that/which)heoncestudiedinisveryfamous.Theschoolinwhichheoncestudiedisveryfamous.注意:1.含有介词的动词短语一般不翻开使用,如:of等Thisisthewatchwhich/thatIamlookingfor.(T)ThisisthewatchforwhichIamlooking.(F)

lookfor,lookafter,takecare2.若介词放在连结代词前,连结代词指人时用 whom,不能够用who或许that;指物时用which,不能够用that;连结代词是所有格时用 whose“介词+连结代词”前可有some,any,none,both,all,neither,most,each,few等代词或许数词Helovedhisparentsdeeply,bothofwhomareverykindtohim.Inthebaskettherearequitemanyapples,someofwhichhavegonebad.Therearefortystudentsinourclassinall,mostofwhomarefrombigcities二、连结副词的采用:when指时间,在定语从句中做时间状语where指地址,在定语从句中做地址状语ShanghaiisthecitywhereIwasborn.why指原因,在定语从句中做原因状语Pleasetellmethereasonwhyyoumissedtheplane.注意:关系副词引导的从句能够由“介词+关系代词”引导的从句代替Thereasonwhy/forwhichherefusedtheinvitationisnotclear,Fromtheyearwhen/inwhichhewasgoingtoschoolhebegantoknowwhathewantedwhenhegrewup.Greatchangeshavetakenplaceinthecityinwhich./whereIwasborn.三、判断关系代词和关系副词的方法 :正确判断先行词在定语从句中的成分 (主、、、定、状)例1.Isthisthemuseum___youvisitedafewdaysago?例2.Isthisthemuseum____theexhibitionwasheld?A.where B.that C.onwhich D.theone关系的依照在从句中所做的成分,先行在从句中做主、定、,关系代(who,whom,that,which,whose);先行在从句中做状,关系副(where地址状,when状,why原因状)四、介+接用法明1)介后边的关系不能够省略。2)that前不能够有介。3)某些在从句中充任,地址或原因状的"介+关系"构能够同关系副when,where和why互如:ThisisthehouseinwhichIlivedtwoyearsago.ThisisthehousewhereIlivedtwoyearsago.Doyourememberthedayonwhichyoujoinedourclub?Doyourememberthedaywhenyoujoinedourclub?Thisisthereasonwhyhecamelate.Thisisthereasonforwhichhecamelate.五.限制性定从句和非限制性定从句限制性定从句例:chinaisacountrywhichhasalonghistory.非限制性定从句例:hismother,wholoveshimverymuch,isstrictwithhim.要注意区分以下几个句子的不同样样hisbrotherwhoisnowadoctoralwaysencourageshimtogotocollege.他那当医生的哥哥常激励他要考上大学。(他有其他的哥哥)hisbrother,whoisnowadoctor,alwaysencourageshimtogotocollege.他的哥哥是当医生的,常激励他要考上大学。(他只有一个哥哥)关系代as和which引的定从句as和which引非限制性定从句,有同样之也有不同样样之。详细情况是:1.as和which都能够在定从句中做主或许,代表前面整个句子。hemarriedher,as/whichwasnatural.hewashonest,as/whichwecansee.as引非限制性定从句,可放在主句以前,或许主句今后,甚至能够切割一个主句;which引的非限制性定从句只能放在主句今后。其他,as有“正如⋯⋯,正像⋯⋯”的意思asisknowntoall,chinaisadevelopingcountry.heisfromthesouth,aswecanseefromhisaccent.john,asyouknow,isafamouswriter.hehasbeentoparismorethanseveraltimes,whichidon'tbelieve.注意:当主句和从句存在上的因果关系,常用 whichtomwasalwayslateforschool,whichmadehisteacherangry.3.当先行次受such,thesame修饰时,常用 asihaveneverheardsuchastoryashetells.heisnotsuchafoolashelooks.thisisthesamebookasilostlastweek.注意:当先行次由thesame修饰时,有时也用that引导定语从句,但是和由as所引导的定语从句意思不同样样sheworethesamedressthatsheworeatmary'swedding.她衣着她在mary婚礼上穿过的一条裙子。sheworethesamedressasheryoungsisterwore.她衣着和她妹妹所穿的同样的裙子。以theway为先行词的定语从句平常由 inwhich,that引导,而且平常能够省略。thewayinwhich/that/./heansweredthequestionwassurprising.but有时也能够做关系词引导定语从句thereareveryfewbutunderstandhisidea.(but=whodon't)定语从句只能用 that的几种情况1.当先行词是anything,everything,nothing(something除外),few,all,none,little,some等代词时,或许是由every,any,all,some,no,little,few,much等修饰时HaveyoutakendowneverythingthatMr.Lihassaid?Allthatcanbedonehasbeendone.ThereislittlethatIcandoforyou.注意:当先行词指人时,有时也能够用 whoAnymanthat/whohasasenseofdutywon2.当先行词被序数词修饰

’tdosuchathing.当先行词被形容词最高等修饰时ThisisthebestfilmthatIhaveseen.当形容词被thevery,theonly修饰时ThisistheverygooddictionarythatIwanttobuy,当先行词指人时,有时也能够用 whoWangHuaistheonlypersoninourschoolwhowillattendthemeeting?当先行词前面有who,which等疑问代词时Whoisthemanthatisstandingthere?当先行词既有人,也有动物或许物体时Canyourememberthescientistandhistheorythatwehavelearned?同位语从句(一)一般来说,在主从复合句中,用作同位语的从句叫同位语从句。它平常跟在某些名词今后,用以说明或讲解该名词表示的详细内容。能够跟同位语从句的名词平常有:advice,decision,fact,hope,idea,information,message,news,promise,proposal,reply,report,suggestion,word(信息),problem,question,doubt,thought等。Theyweredelightedatthenewsthattheirteamhadwon.有时同位语从句能够不紧跟在被说明的名词后边,而被其他词分开。 如:ThethoughtcametohimthatTommighthavereturnedthebook.(二)引导词ThenewsthatMr.LiwillbeournewEnglishteacheristrue.Hehasn’tmadethedecisionwhetherhewillgothere.Thequestionwhoshoulddotheworkisbeingdiscussedatthemeeting.Ihavenoideawhattheboyisdoinginthenextroomnow.Wehaven’yetsettledthequestionwherewearegoingtospendoursummervacationthisyear.IhavenoideahowIcangettotherailwaystation.Ihavenoideawhenhewillbeback.小结:①that引导同位语从句时无词义,也不充任任何成分,但平常不能够以省略,如句1;②whether引导同位语从句时意为“可否”,平常不能够用if来代替,如句2;③连结代词who,what等能够引导同位语从句,如句 3,4;④连结副词where,how,when等能够引导同位语从句,如句5,6,7。(三)that引导的同位语从句和定语从句①意义不同样样:同位语从句用来进一步说明前面名词的内容;而定语从句用来修饰、限制前面的先行词。试比较:Thenewsthatourteamhaswonthefinalmatchisencouraging.Thenewsthatyoutoldusisreallyencouraging.that的功能不同样样:that引导同位语从句时是一个纯连词,不充任任何成分;而引导定语从句时,不单起连结作用,而且还指代先行词并在从句中充任主语、宾语等成分。试比较:DadmadeapromisethathewouldbuymeaCDplayerifIpassedtheEnglishtest.Dadmadeapromisethatexcitedallhischildren.③可否省略:that在引导同位语从句时,平常不能够省略。在引导定语从句时,若在从句中作宾语,平常能够省略,若作主语则不能够以省略。主语从句由连词that引导的主语从句:引导词that无含义,在句中不做成分,不能够以省。Thatyouwillwinthemedalseemsunlikely. 你想获得奖牌看起来是不能够能的。用连词whether引导的主语从句:whether有含义(可否),在句中不做成分,不能够以省。Whethersheiscomingornotdoesn ’tmattertoomuch.她来不来都没关紧迫。用连结代词引导的主语从句(在由连结代词who,whose,whom,which,what,whoever,whomever,whichever,whatever引导的名词性从句中,其连结代词在句中起名词性作用,担当必然成分).Whatyouneedismorepractice.你所需要的是更多的。Whateverwedoistoservethepeople.我无做什么都是人民服。用接副when,where,why,how引的名性从句(其接副有含,在句中作状。)Whereweshouldleaveitisaproblem.注意it做形式主,而将主从句放在句末(特别是当短)。Thatlighttravelsinstraightlinesisknowntoall.=Itisknowntoallthatlighttravelsinstraightlines.尽人皆知光沿直播。(当what引的主从句表示“⋯的西”,一般不用 it作形式主。):Itisabookwhathewants.:Whathewantsisabook.他想要的是本。固定用法和法(1)Itis+名+从句Itisafactthat 事⋯是⋯⋯Itisgoodnewsthat ⋯是好⋯⋯信息Itisaquestionthat 是⋯个⋯⋯Itiscommonknowledgethat ⋯是常⋯⋯似的名有:apity;awonder;agoodthing;nowonder;surprise等。2)Itis+形容+从句Itislikelythat 很可能⋯⋯⋯Itisimportantthat 重要⋯的是⋯⋯似的形容有:strange;natural;obvious;true;good;wonderful;possible;unlikely;quite;unusual;certain;evident;worth-while;surprising;interesting;astonishing,etc.3)Itis+去分+从句Ithasbeenprovedthat 已⋯明⋯⋯Itmustbeprovedthat 必⋯指出⋯⋯似的去分有:known;estimated;expected;believed;thought;hoped;noted;discussed;required;decided;suggested;demanded;madeclear;foundout,etc。.当“及物 + ”短,也可用种构。ItshockedmethatPeterdidnottellanybodywherehewas.我惊讶的是彼得没有告任何人他在哪里。2.只用whether不用if引主从句.表从句一.在复合句中作表的从句 ,就叫做表从句。表从句一般放在系今后 ,构是“主+系+表从句”。系:be、表示持的系(keep,remain,stay)、感官feel(摸起来,感),smell(起来),sound(听起来),taste(起来,吃起来)等、表示化的系(become,grow,turn,fall,get,go,)、表止的系prove,turnout(果是,明是)、seem,appear(看起来··)系平常不用于被和行中。Hehasbecomewhathewantedtobetenyearsago.他已成了他 10年前想成的。Hissuggestionisthatweshouldstaycalm.他的建是,我保持沉着。二.表语从句的引导词1.隶属连词:that/whether/asif/asthough/as/becausethat引导表语从句自己没有词义,在句中只起连结作用,不充任句子成分,一般不能够省略。Thatfactisthatmorethanseventypercentoftheearth

’ssurfaceiscoveredbywate连结词

that一般不能够省略,但当主句中含动词

do的某种形式时,

that能够省略。WhatIwanttodois(that)Icangouptohimandthankhim.我想做的事是走到身边去感谢他。whether引导表语从句表示“可否”,但不充任句子的成分。Thequestioniswhetherwecanfinishourworkbytomorrowevening.if与whether均意为“可否”,但引导表语从句时,只能用 whether,不能够用if。(3)asif/though忧如“”,引导表语从句时要注意语态 .若是句中的情况与事实不切合, 从句多用虚假语气。若是从句表示与现在事实相反,谓语动词用一般过去式;若是从句表示与过去事实相反时

,谓语动词要用“

had+过去分词 ”,若是从句表示将来的可能性不大,用

would(might,could)+动词原形.LiLeiisnowinanewjacket.HelooksasifhewereanAmericanboy.(现在事实相反)Thegirlisgivingusavividdescriptionofthemoon.Itseemsasifshehadbeentothemoonmanytimes.(与过去事实相反)Itlooksasifitmightrain.

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