2023年中考英语状语从句课件

状语从句定义:

一个____用作状语时,在语法上叫状语从句。这个句子可修饰主句的_____._____._____或________状语从句通常由一个＿＿＿引起或起连词作用的____引起或由_____.__________等引起。分类：状语从句可表示1)________2)_________3)__________4)_________5)_________6)_________7)_________8)__________9)________等句子概念谓语定语状语整个句子连词词组副词名词词组时间地点原因目的结果条件行为方式比较让步连词:一.表示时间的状语从句可由以下连词引导:1.when,while,as,whenever,before,after,until,till,since,eversince,once,assoonas2.everytime,next/last/eachtime,thefirsttime,themoment,theminute,theinstant3.instantly,directly,immediately4.hardly…when,nosooner…than,beabouttodo…whenItis/hasbeen+一段时间+since从句

Itwas/won’tbe+一段时间+before从句二.地点状语从句:where,wherever,anywhere,everywhere.三.原因状语从句:because,as,since/nowthat;seeing(that)由于,consideringthat考虑到,notbecause/that…butbecause/that…四.目的状语从句that(=sothat),sothat,inorderthat,incase,forfearthat,lest.五.结果状语so,that,sothat,so…that…,such…that….

六.条件状语从句:if,unless,once,onconditionthat,as/solongas,sofaras(据我所知…),providing/provided(that),given(that)假定,七.方式状语:as,asif/though,justas,ratherthan.八.比较状语从句:than,as九.让步状语从句:Though,although,evenif/though,nomatter,whatever,however,whether…or…,while(=though),as各种连接词的具体用法用when,while或as填空:_______________weweretalking,MrSmithscamein._____theycamehome,Iwascookingdinner.Iwasabouttogotobed_______Iheardsomeoneknockattthedoor.4.________wewerewatchingTV,hewasstudying.5.Heisfat_______hisbrotheristhin.6.______shesang,tearsrandownherface.Conclusion:A:从句为”当……的时候”,从句谓语为延续性动词,主句谓语为非延续性动词(即终止性动词),三者可通用.B当从句的谓语动词为终止性动词,只能用when;表示”正在那时”,也只能用when..C.从句和主句的谓语动词都为延续性动词时,只能用while;while还可作并列连词,表示”而”.

While/As/WhenwhenwhenWhilewhileAsD.当强调主句和从句的动作同时发生时,只能用as,译为”一边……一边……;随着……”Before与after:Finishyourhomework______yougoouttoplay.Ihadleftthetowntheday______shearrived.Hehadwalkedthreedays____hefoundwater.Itwasnotlong_____helefthishometown.Iplayedfootball_____I(had)finishedmyhomeworkPleasetellherI’llcome_ ___Idosomeshopping.Itwillnotbelong_____wemeateachotheragain.afterafterConclusion:1.Before作为连词,有多种含义,必须根据上下文作出合理的判断.2.Before与after所引导的时间状语从句中,用现在时表示将来时.4.Before引导的从句是过去式,主句是过去时或过去完成时;.主句为过去时,after从句可用一般过去时代替过去完成时.3.Before与after还可作介词,后接名词或-ing形式.till与until:1.Helivedwithhisparents________hegraduatedfromcollege.2.Not____hetoldmedidIknowthetruth.3.Thechildrenwon’t________(come/be)homeuntil/tillit’sdark.4.Itwas_________thewarwasoverthathereturnedtohisland.till/untiluntilcomenotuntilConclusion:主句为肯定句时,主句的谓语动词应为延续性动词.2.当主句谓语动词为非延续性动词时,谓语动词应用否定式.3.位于句首时.只能用until,不用till.4.not…until可改写为:Itis/wasnotuntil…that强调句.”not+until引导的从句,一同置于强调句中.5.Till与until还可作介词,后接名词.如:Iwaitedtill/until3o’clock.其它的时间状语从句:ill.I__________(be)athisbedsidesincehe_______(become)ill.It_________(be)twoyearssincewe_______(begin)tousethismachine._______________________hesawthemonster,heturnedpale.Thespyhad_________returnedhomethanhewastoldtogotoanothercountry.Wehad________returnedhomewhenitrained._______hadwebegunwhenwetoldtostop.havebeenbecameis/hasbeenbeganThemoment/minute/AssoonasNosoonerhardlyHardlyConclusion:1.Since表示”自从……以来”,以过去某一时间为起点,持续到现在或过去的某个时候;since从句用过去时态,主句一般用现在完成时.2.Itis/hasbeen…since…句型.3.表示”一……就……”,可用themoment;theminute;theinstant;assoonas,immediately/directly/instantly以及hardly…when;nosooner…than…等作为连词.原因状语从句:用because,as,since与for填空:--Whyareyoucrying,meg?---______I’vebrokenyournecklace,mom.2.Iwenttobedearly_______Iwastired.3.Iwasnotkindtohim_______hewaspoor.4.Iwasnotkindtohim,_______hewasrude.5.________Ihadacold,Iwasabsentfromschool.6.MymotherwasillandIsentforTom,___hewasadoctor.7._____weareallhere,let’sbeginourclass.becausebecausebecausebecauseAsforSinceConclusion:判断下列句子对错:IfIwillhaveenoughmoneynextyear,IwillgotoEngland.IfIamtoblame,youaretoblame.I’dbeverygladifyouwouldcome.条件句的填空:IfI_______(be)abird,Iwouldflytoyou.Ifyou________(leave)homealittleearlierthismorning,you_______________(catch)thebus.Ifthesun__________(rise)inthewest,I____________(change)mymind._____he_____(fall)throughtheice,hewouldhavedrowned._____badweatherstopsme,Ijogeveryday._______Ihavetosellmyhouse,I’llhelpthosepoorchildrentogoonwiththeirstudies.I’llgo___________________yougo._______anythingimportanthappens,pleasecallmeup.werehadleftwouldhavecaughtshouldrisewouldchangeHadfallenUnlessEvenifAs/solongasIncaseConclusion:条件状语从句中用一般现在时表将来时.If从句如果表示主语的意志,意愿,或以you作主语表请求时,则用will或would.Unless不用于虚拟条件句.Incase引导状语从句;而incaseof后接sth./doingsth.判断下列句子类型:1.Youwouldletyourchildrenplaywhereyoucanseethem.2.Youwouldletyourchildrenplayintheplacewhereyoucanseethem.Conclusion:让步状语从句Hewentout,________itwasraining._________theyarepoor,theybuyagreatmanybooks.Strange_________itmayseem,heremainedsingleallhislife.Child____heis,hehaslearntadvancedmathematics.Nomatter________happens,don’tbediscouraged.Nomatter______yougo,youmustwritetoyourparents.Nomatter______hardhetried,hecouldn’topenthedoor.Nomatter______youmarryinthefuture,hemustbeanhonestman.thoughAlthoughthoughaswhatwherehowwhoConclusion:Although多用于句首.Though可用于句首,句中;还可用作副词,用于句末,译为:可是;但是.如:It’shardwork,Ienjoyitthough.Though引导的主语从句还可以把表语提到最前面,而although则不能这样用.目的与结果状语从句Hegotupearly_____________________hecouldcatchthebus.____________hecouldcatchthebus,hegotupearly.Thisbookis____rewritten______childrencanenjoyit.Iwascaughtinashower,________allmyclothesgotwet.It’s____cold_____thelakehasfrozen.Thereare______manybooksthere_____Idon’tknowwhichonetoborrow.Iran_____fast______I’dgotapaininmyside.It’s_____goodabook_______I’vereaditagainandagain.Itwas_____acoldday_____therewasnobodyonthestreet.______coldweatherremainedforthreedays_____Ihadtostayathomealldaylong.Conclusion:1.由sothat;inorderthat引导的目的状语从句中通常用may,could,can等情态动词..inorderthat/sothatInorderthatsothatsothatsothatsothatthatsosothatthatsuchsuchthat2.Inorderthat从句可放于句首,而sothat引导的从句只能放在主句之后.3.so…that引导目的状语时,so通常修饰动词.4.Sothat引导结果状语从句时,就不用情态动词.5.so…that引导结果状语从句时,so常用于修饰形容词或副词,或用于修饰many,much,little,few.6.So也可修饰单数可数名词,但顺序为:so+adj.+a/an+n.7.Such可修饰任何名词,当其修饰单数可数名词时,语序为:such+a/an+(adj.)+n.比较状语从句:Hisbrotheris____handsome____he(is).Themoviewasnot______good____Ihadexpected.Yourbagistwiceasexpensiveas_______(me).Thedriverdrivesfaster_____heusedto(drive)._________knowledgewelearn,_________(happy)wewillbe.Conclusion:1.请保持人称代词的格前后一致.如:1,3.2.倍数词须加在比较结构的前面.如:3.3.句中相同的成分,如动词,常常省去.如:1,4.asasso/asasminethanThemorethehappier方式状语从句:Hestoodup_____(hewanted)toleave.Shealwaystalkstomeasifshe_____(be)mysister.Hewalkedslowlyasifhe_______(hurt)hisleg.asifwerehadhurt判断下列句子的类型:Iwilldoasyouadvise.AsIexpected,hewonthematch.Conclusion:Asif从句里的主语与动词有时可省略.Asif从句叙述的情况如果与事实相符合,从句不用虚拟语气,从句时态与主句保持一致.Asif从句叙述的情况如与事实不相符合,则从句用虚拟语气.As引导的从句的动词可用do,does,did来代替,以避免重复.改错:Shewaswalkingonthestreetwhiletheaccidenthappened.________