英语状语从句课件

状语从句状语从句1状语从句

状语从句由从属连词引导,从属连词在从句中不充当成分.根据从句表达的意思不同,可分为时间,地点,原因,条件,目的,结果,让步,比较等状语从句.状语从句

状语从句由从属连词引导,从属连词在从句中不2一、状语从句分类及常用连词类别连词时间地点原因目的结果条件让步比较方式

when,whenever,while,as,before,after,since,till,

where,whereverbecause,since,as,for,nowthat,inorderthat,sothat,incase,forfearthat

so…that,sothat,such…that,if,unless,as(so)longas,

though/although,evenif/though,whatever,

as…as,so…as,than,themore…themoreas,asif/though,justas

一、状语从句分类及常用连词类别连词时间地点原因目的结31易混、易错点(1)when/as/whileHehurriedhome,lookingbehind______hewent.______youhaveseenhim,youwouldbehappy.______Iwaswaitingforthebus,Imetwithafriend.总结:1)as表示主从句动作___发生,译成_______2)while从句只能跟_____动词,常用______时3)when从句既可用延续性动词，又可以用瞬间动词aswhenwhile同时一边---一边延续性进行时间状语从句aswhenwhile同时一边---一边延续性进行时间状语从41.1①when除表示：“当…时候”外，还有“那时(忽然)，这时(忽然)”.常用下列句型：was/weredoing…when正…忽然was/wereaboutto…when正要…忽然hadjustdone…when刚…忽然就e.g.wewereabouttosetoffonourwaywhen

itsuddenlybegantorain.②when还有“既然”解，引导原因状语从句。e.g.Itwasfoolishofyoutotakeataxiwhenyoucouldeasilywalkthereinfiveminutes.1.1①when除表示：“当…时候”外，还有“那时(忽然51.2while用法小结①.引导时间状语从句.while从句的谓语动词通常是持续性动词.Pleasedon’ttalksoloudwhileothersarestudying.②.表对比关系.“而、却”Helikespopmusic,whileIamfondoffolkmusic.③.引导让步状语从句.表示“虽然”(though/although)WhileIunderstandyourviewpoint,Idon’tagreewithyou.④.引导条件状语从句，意为“只要”(aslongas).Whilethereislife,thereishope.1.2while用法小结①.引导时间状语从句.while6(2).①until/till“直到……止”(肯定句，主句是延续性动词);

②not…until“直到……才”(否定句，主句是终止性动词);

③until可用于倒装句和强调句，till不用于句首。

NotuntilIreturneddidshefinishherhomework.

Itwas

notuntilIreturnedhomethatshefinishedherhomework.(2).①until/till“直到……止”(肯定句7Exercises:1)—Washisfatherverystrictwithhimwhenhewasatschool?—Yes.Hehadneverpraisedhim

hebecameoneofthetopstudentsinhisgrade.A．after B．unless C．until D．When

2)Simonthoughthiscomputerwasbroken________hislittlebrotherpointedoutthathehadforgottentoturniton.untilB.unlessC.afterD.becauseCAExercises:CA8(3).thetime（当……的时刻）,themoment/minute/second/instant(一…就…),nexttime(下次),thefirsttime(第一次…的时候),thelasttime(上次…的时候)，immediately/instantly/directly（一…就…）等词或词组可引导表示时间的状语从句；表示习惯性动作的词如：everytime（每次）,eachtime（每次）,whenever（每当）等也可引导表示时间的状语从句。Exercise:—DidyouremembertogiveMarythemoneyyouowedher?—Yes,Igaveittoher_______Isawher.A．whileB．themomentC．suddenlyD．once(3).thetime（当……的时刻）,themome9Before(1).多种引申义：Pleasewritedownbeforeyouforgetit.HehungupbeforeIcouldanswer.Itlastedfourhoursbeforethefirewascontrolled.（还没来得及就…）（过了…之后才…）e.g.Itwillbealongtimebeforewemeetagain.

要过很长时间我们才能再见面．2.重点及难点突破：在…之前(2).常用句型:Itis/was/willbe…before多久之后…才区别：since可构成句型：itis/hasbeen…since…“做某事已有多久了.自从…以来已有多久”e.g.ItisthreeyearssinceIbegantosmoke.Before（还没来得及就…）（过了…之后才…）e.g.10Exercises:1、TheAmericanCivilWarlastedfouryears______theNorthwonintheend.(05广东卷)A.afterB.beforeC.whenD.then2、Hemadeamistake,butthenhecorrectedthesituation______itgotworse.（03北京）A.untilB.when C.before D.asBCExercises:BC11Fillintheblanks:(before/that/since/when)1)Itwillbethreedays_______youseehimagain.2)Itwillbethreeo’clock_______youseehimagain.3)Itisatthreeo’clock_______you’llseehimagain.4)Itisthreedays_______yousawhimlasttime.beforewhenthatsinceFillintheblanks:(before/th121易混、易错点(1).Unless/untilIdidn’tfinishreadingthebook_____Mumcameback.Ican’tfinishthework______youhelpme.Wearegoingtohaveabarbecue_______itrains.结论:untilunlessunless条件状语从句①.unless强调条件,而until强调时间②.unless相当于ifnot，意思是“除非…”“如果不…就…”。1易混、易错点untilunlessunless条件状语从13BA(2).aslongas/asfarasaslongas表示“只要…”，asfaras表示“就…而论（而言）”Exercises:1、_____Icansee,thereisonlyonepossiblewaytokeepawayfromthedanger.A.AslongasB.AsfarasC.JustasD.Evenif2、IalwaystakesomethingtoreadwhenIgotothedoctor’s________Ihavetowait.A．incaseB．sothatC．inorder D．asif

BA(2).aslongas/asfaras141.TheWTOcannotliveuptoitsname____itdoesnotincludeacountrythatishometoonefifthofmankind.（2000全国）A．aslongasB．whileC．ifD．eventhough2.Itisknowntoallthat_____youexerciseregularly,youwon’tkeepgoodhealth.unlessB.wheneverC.althoughD.ifCA1.TheWTOcannotliveuptoit15if引导的真实条件句和非真实条件句1)______hehadnothurthisleg,Johnwouldhavewontherace.(07全国卷II)AIfBSinceCThoughDWhen2)IfNewtonlivedtoday,hewouldbesurprisedbywhat______inscienceandtechnology.(07天津高考)AhaddiscoveredBhadbeendiscoveredChasdiscoveredDhasbeendiscovered

AD2重、难点及其突破if引导的真实条件句和非真实条件句AD2重、难点及其突破163)Weallknowthat,_____,thesituationwillgetworse.AnotifdealtcarefullywithBifnotcarefullydealtwithCifdealtnotcarefullywithDnotifcarefullydealtwith4)_________fired,yourhealthcareandotherbenefitswillnotbeimmediatelycutoff.AWouldyoubeBShouldyoubeCCouldyoubeDMightyoubeBB3)Weallknowthat,_____,t17evenif等于eventhough，表示“即使、尽管”。asthough等于asif，引导方式状语从句，表示“好像、似乎”。3、让步状语从句1、_____Iacceptthatheisnotperfect,Idoactuallyliketheperson.

A.WhileB.SinceC.BeforeD.Unlesswhile是高考中的高频词，它既可引导时间状语从句，又可引导并列句，还可引导让步状语从句，表示“尽管”。2、Allowchildrenthespacetovoicetheiropinions____theyaredifferentfromyourown.

A.until B.evenifC.unlessD.asthough

ABevenif等于eventhough，表示“即使、尽181.易混、易错点nomatterwh-/wh-ever①nomatterwh-只引导让步状语从句,与wh-ever通用。

Nomatterwhat/whateverhesays,don’tbelievehim.②wh-ever又可引导名词性从句,nomatterwh-不能。

Whoevercanhelpuswillbewelcome

1、Hetriedhisbesttosolvetheproblem,___difficultitwas.A.howeverB.nomatterC.whateverDalthough2、Theoldtowermustbesaved,______thecostA．howeverB．whateverC．whicheverD．whereverAB1.易混、易错点1、Hetriedhisbest194.状语从句的时态问题

在条件，时间和让步从句中，用一般现在时表示一般将来时，用现在完成时表将来完成时，用一般过去时表过去完成时。在since

引导的时间状语从句中，动词一般都用一般过去时，而主句常用现在完成时。CBExercise:

1、Thehousecouldfalldownsoonifnoone______somequickrepairwork.（04全国IV）AhasdoneBisdoing Cdoes Dhaddone2、Itisalmostfiveyears_______wesaweachotherlasttime.（05北京春季）A.before B.since C.after D.when4.状语从句的时态问题CBExercise20

5、状语从句的倒装问题状语从句的倒装一般有下面几种情况：①否定词开头(Hardly…when…,Nosooner…than…,notuntil);②so加adj.开头；③as/though引导的让步状语从句。问题1：

1、Sodifficult_____ittoliveinanEnglish-speakingcountrythatIdeterminedtolearnEnglish.A.IhavefeltB.haveIfeltC.IdidfeelD.didIfeel2、Notuntilallthefishdiedintheriver_____howseriousthepollutionwas.A.didthevillagersrealizeB.thevillagersrealizedC.thevillagersdidrealizeD.didn’tthevillagersrealizeDA5、状语从句的倒装问题问题1：DA213.______,hetalksalotabouthisfavoritesingersafterclass.

Aquietstudentashemaybe

B.QuietstudentashemaybeC.Beaquietstudentashemay

D.Quietashemaybeastudent

涉及两个考点：一是让步状语从句倒装后的词序问题。让步状语从句之所以要采用倒装结构，主要是为了强调位于句首的名