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1初中重点语法从句总结1、宾语从句一、定义在句子中起宾语作用的从句叫做宾语从句。二、连接词that:Ithinkthatyoucanpasstheexam.Whether/if:Idon’tknowwhatthewordmeans.“Wh”:Idon

’tknowwhatthewordmeans.Idon’tknowwherehefoundthebook.只用whether的情况：1.与ornot连用：Idon’tknowwhetherit’srainingornot.2.与动词不定式连用：He

doesn’tknowwhethertoaccepttheinvitation.3.连接词前有介词时：Itdependsonwhetherheiscoming.三、时态1.主句是一般现在时态，从句根据实际情况而定(各种时态均可)Shewan

tstoknowwhathehasdonefortheexam.2.主句是一般过去时态，从句用相应的过去的时态。1）Shesaidthatshewasastudent.2）ShesaidthatshewouldflytoJapaninaweek.3）She

saidthatshehadfinishedherhomeworkalready.3.如果宾语从句说的是客观真理、自然现象或事实时，这时宾语从句要用一般现在时态。Theteachersaidthattheearthg

oesroundthesun.2、定语从句一、定义在复合句中修饰名词、代词的从句叫定语从句。二、先行词先行词指人who/that先行词指物which/that定语从句一般紧跟被修饰的名词或代词（即先行词）后三、关系代

词关系代词代替先行词在句子中担当成分，所以从句中不可再出现其他代替先行词的代词四、翻译方法“….的”Whom:先行词指人，则代替先行词在定语从句中充当宾语（包括介词的宾语）,与who的区别是如果前面带介词则必须用whom1.Thisistheteacherwhomwhoweli

kebest.2.Idon’tliketheboytowhomyouaretalking.Whose:指人或物，作定语，表示“…的”eg:Harryistheboywhosemotherisourmathteacher.关系代词只能that的

特殊情况：1.先行词前有序数词修饰时：Thisisthefirstgiftthatmyparentsboughtme.2.先行词前有形容词最高级修饰时：2ThisisthemostexcitingfilmthatIhaveeverseen.3.先行词是不定代词something,anything

等时.e.g.Isthereanythingthatyouwantinthisshop4.先行词是人和物时,用that.e.g.Hetalkedaboutsomewritersandbooksthatwereunknown

tousall.5.先行词被all,little,theonly,thevery(就是，正是),thelast等词修饰时,只能用thate.g.ThisisthelastplacethatIwantt

ovisit.6.特殊疑问句以who或which开头，只能用that引导.Whoisthegirlthatismakingaspeechontheplatform?当关系代词前使用介词时：物+介词+which;人+介词+whom当关

系代词前使用介词时：e.g.1.ThisisthetrainbywhichwewenttoBeijing.2.Thisistheteachertowhommymotheristalking.3、状语从句一、定义在复合句中由从句表示的状语称作状语从句，它可以用来修饰谓语（包括非谓语动词

）、定语或状语，或是整个句子。二、状语从句一般分为八大类时间状语从句地点状语从句原因状语从句目的状语从句结果状语从句条件状语从句方式状语从句让步状语从句1.时间状语从句When---当……时候,通常指某一特定的时间点，主句与从句的动作同时发生。WhenIopene

dthewindow,Isawhimcomeup.When---正在……的时候，突然…。通常主句是进行时或beaboutto时，在翻译的时候，when可以译成没想到或突然。Iwaswalkingalongthestreet,whenImethim.When当从句是进

行时，主句是一般时，往往表示不满。SomeoneknockedatthedoorwhenIwashavingbreakfast.When=afterWhenthechildrenhadgonetobed,shebegantoprepareher

lessons.While---在……期间，往往指一段时间。WhilewewereinAmerica,wesawhimtwice.While---表示一种不满情绪，意思是这边在干某种重要的事，而另一边在享受等。Wearecleaningthecl

assroomwhiletheyareplayingthefootball.As---一边……一边,随着Shewasdoingherhomeworkasshewaslisteningtothemusic.As---当……时，指一个

动作紧接着一个动作发生，从句通常用进行时。AsIwasgoingout,itbegantorain.Themoment---一……就……=assoonas,immediately,---DidyouremembertogiveMarythemoneyyouowedh

er?---Yes,IgaveherthemomentIsawher.Not…until---直到……才Hedidn’tleavetheofficeuntilhefinishedthework.3Before---在……之前Thepassengersshoul

darriveattheairportanhourbeforetheflightdeparts.After---在……之后Thecustomerlefttheticketcounterafterhehadaquarrelwiththeticketagent.Si

nce---自从……,通常主句用现在完成时IhaveneverbeenthereagainsinceIgraduatedfromtheuniversity.Itisjustaweeksincewearrivedhere.Assoonas---一……就……Jackwentt

oschoolassoonashegotwell.Nosoonerthan---一……就……nosooner…than…用于句首要求倒装Hardly…when…Scarcely…when…Nosoonerhadhearrivedthanhewentawayaga

in.Once---一但……就……Onceyouseehim,youwillneverforgethim.Everytime,eachtime每次whenever每当Eachtimehecametotown,hewoul

dvisitourschool.2.条件状语从句引导状语从句的连接词有：If如果,unless除非,aslongas只要,As(so)faras---据……所知，incase万一,providedthat假如,onconditionthat若是，以…为条件If---如果I

fyoudon’thurryup,youwillmisstheplane.Unless---如果不,除非=ifnotWecan’tgetthereontimeunlesswebooktheearliestflightAslongas---只要Wew

illsucceedaslongaswekeepontrying.As(so)faras---据……所知AsfarasIknow,hespeaksEnglishverywell.Incase---假使,如果Theplanecannottakeoffincaseitrains.Provi

dedthat如果,有时省略thatTheplanewillbeingoodconditionprovidedthatitistakencareofcarefully.Onconditionthat-

--条件是…Hesaidthathewouldcometothemeetingonconditionthatnooneaskedhimtospeak.注:主从句的动作发生在将来时，则主句用将来时,从句用一般现在时。Ifhearri

vestomorrow,Iwillbewaitingforhimattheairport.3.地点状语从句地点状语从句只有两个连词:Where,whereverWhere---在……地方Wherethereisawill,thereisaway.Wherever---无论哪里Wher

everyouare,Iwillberighttherewaitingforyou.4.原因状语从句because,as,since,nowthat,和consideringthat,seeingthat这六个连词都

用于表示表示原因,但在语气上一个比一个弱.Because---因为,通常从句放在主句后.4MrSmithwasveryupsetbecausehecouldn’tfindhisluggage.As---因为,通常放在句首A

sheishonestandmodest,allhisfriendslikehim.Since---既然因语气较弱,常译为既然(众所周知的原因)Sinceeverybodyhascome,wecansetoff.Nowthat---既然Nowthaty

ouarehere,youcanjoinus.consideringthat---顾及到Consideringthattheyarejustbeginners,theyaredoingquiteagoodjob.seeingthat---由于Seeing(tha

t)quiteafewpeoplewereabsent,wedecidedtoputthemeetingoff.5.结果状语从句引导结果状语从句的连词有：that,sothat,so…that…such…

thatSo…that---太……以至于so后面应用形容词或副词,有时省略so只用thatBoeing747issolargethatpeopleliketocallitjetbomb喷气炸弹.Sothat---因而，以便，为了有时so可以省去Speaklouderpleasesothat

thepeopleatthebackcanhearyou.Such…that…---太……以至于用法与so…that相同，但such后面应用名词。Theforeignvisitorwassuchafastspeakerthatnobodycou

ldunderstandhim.6.目的状语从句引导目的状语从句的主要连词有:that,sothat,inorderthat,forfearthat,lest(So)that---以便,从句中常常使用一些情态动词，如：can,could,may,m

ight,should等Let’stakethefrontseats(so)thatwemayseemoreclearly.inorderthat---为了,与sothat相同从句中常常使用一些情态动词，

如：can,could,may,might,should等Schoolwasclosedearlyinorderthatthechildrenmightgohomeaheadofthestorm.forfearthat---生怕;为了防止(某事发生)Hetookt

henamedownforfearthatheshouldforgetit.incase---万一Youshouldbringadictionaryincaseyouneedit.Lest---以防万一Themandecidedtotellh

isbossthefactlesthewouldbeangrywithhim.7.让步状语从句引导让步状语从句的连词有：Although,though,as,evenif,eventhough,nomatter,however,whatever,whi

le,whether.Although,though---虽然although和though可以互换，但although常放在句首。Though可以用于倒装。Althoughitwasraining,theplan

emanagedtotakeoff.Thoughhedidhisbest,hedidn’tsucceed.As---尽管as引导让步状语从句时，句子通常倒装。可与though互换。Busyasheis,henevermiss

esafootballmatch.Evenif/eventhough---即使Evenifyoudon’tlikeyourboss,youshoulddoyourwork.However---不论，however引导让步状语从句时，句子

通常倒装Hecouldn’tgetthereontimehoweverfasthedrove.Nomatter(what,when,where,how)---无论（什么，何时，何地，怎样）5Hewouldn’tforgivemenom

atterhowhardIbeggedhim.Whatever---不管Whateverotherpeoplemaysay,shewon’tchangehermind.While---尽管WhileIhavesympathy

foryou,Ican’thelpyou.Whether---不管，常与ornot连用Whetherheisgoodornot,thecompanydecidedtosendhimabroad.8.方式状语从句方式状语从句常由:as,asif,asthoughas---与……一样DoinRome

astheRomansdo.asif,asthough---仿佛,由asif或asthough引导的从句中可用虚拟语气Shestoodatthedoorasif(=asthough)shewerewa

itingforsomeone.