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1、2020届高考一轮复习语法专项六：状语从句由从句担当的状语，在句子中可修饰谓语（或其他动词）、形容词、副词或是整个句子，它可以用来表示时间、地点、原由、目的、结果、条件、方式、比较、退步等。状语从句是一较大的语法项目，也是近几年高考题中常有的一个重要试点。高考中已观察了时间、退步、地点、条件、目的等状语从句，这些从句还是今后高考热门，应作充分准备。同时对方式状语从句也应惹起重视。（一）时间状语从句表示时间的状语从句可由when,as,while,whenever,after,before,till(until),since,once,assoonas(或themoment),bythetime
2、,nosoonerthan,hardly(scarcely)等when,everytime指引。e.g.WhenIcameintotheoffice,theteacherswerehavingameeting.Hestartedassoonashereceivedthenews.Onceyouseehim,youwillneverforgethim.NosoonerhadIgonetobedthanIwenttosleep.（二）原由状语从句原由状语从句是表示原由或原由的，指引这种从句的最常用的连词是because,since,as,nowthat（既然）等，for表示因果关系时（它指引的不是
3、从句）为并列连词，语气不如because强。e.g.Heisdisappointedbecausehedidntgettheposition.Asitisraining,Iwillnotgoout.Nowthatyoumentionit,Idoremember.（三）地点状语从句指引地点状语从句的连词是where和wherever等。e.g.Sitwhereveryoulike.Makeamarkwhereyouhaveaquestion.（四）目的状语从句指引目的状语从句最常用的词（组）是so,sothat（从句谓语常有神态动词）,inorderthat,incase（以防，省得）等。e.g
4、.Speakclearly,sothattheymayunderstandyou.ShehasboughtthebookinorderthatshecouldfollowtheTVlessons.Heleftearlyincaseheshouldmissthetrain.（五）结果状语从句结果状语从句是表示局势结果的从句，平时主句是原由，从句是结果。由sothat（从句谓语一般没有神态动词）,sothat,such等that指引。e.g.Shewasill,sothatshedidntattendthemeeting.Hewassoexcitedthathecouldnotsayaword.S
5、heissuchagoodteacherthateveryoneadmiresher.（六）条件状语从句条件状语从句分真实性（有可能实现的事情）与非真实性（条件与事实相反也许在说话者看来不大可能实现的事情）条件句。指引条件状语从句的词（组）主要有if,unless,so(as)longas,onconditionthat,so(as)faras,ifonly(=if)。注意：条件从句中的if不可以用whether替代。e.g.Ifheisnotintheoffice,hemustbeoutforlunch.Youmayborrowthebooksolongasyoukeepitclean.So
6、farasIknow（据我所知）,hewillbeawayforthreemonths.Youcangoswimmingonconditionthat(=if)youdontgotoofarawayfromtheriverbank.Ifhehadcomeafewminutesearlier,hecouldhaveseenher.（七）退步状语从句退步状语从句可由although,though,as,evenif(though),however,whatever,whetheror,nomatterwho(when,what,等指引)。注意：e.g.Thoughheisachild,heknow
7、salot.Childasheis,heknowsalot.as指引的退步状语从句一般是倒装的。Whatever(=Nomatterwhat)yousay,Illneverchangemymind.（八）方式状语从句方式状语从句常由as,asif(though),theway,ratherthan等指引。e.g.YoumustdotheexerciseasIshowyou.Heactedasifnothinghadhappened.（九）比较状语从句比较状语从句常用than,so(as)as,themoree.g.Ihavemadealotmoremistakesthanyouhave.Hes
8、mokescigarettesasexpensiveashecanafford.Thebusierheis,thehappierhefeels.等引the导more。（十）使用状语从句时要注意的几个问题1、在时间和条件（有时也在方式、退步等）从句中，主句是一般未来时，从句平时用一般此刻时表示未来。e.g.Wellgooutingifitdoesntraintomorrow.IllwritetoyouassoonasIetgtoShanghai.2、有些时间、地点、条件、方式或退步从句，假如从句的主语与主句主语一致（或虽不一致，是it），从句的谓语又包括动词be，即可省略从句中的“主语+be”部
9、分。e.g.When(hewas)stillaboyoften,hehadtoworkdayandnight.If(youare)askedyoumaycomein.If(itis)necessaryIllexplaintoyouagain.3、注意区分不一样从句：指引的是什么从句，不但要依据连词，还要依据句子结构和句意来鉴识。以where为例，能指引多种从句。e.g.Youaretofinditwhereyouleftit.（地点状语从句）Tellmetheaddresswherehelives.（定语从句，句中有先行词）Idontknowwherehecamefrom.（宾语从句）Wher
10、ehehasgoneisnotknownyet.（主语从句）Thisplaceiswheretheyoncehid.（表语从句）练习、状语从句一、用横线划出以下句子中的状语从句，并指出是哪一种状语从句：1.Childassheis,sheknowsalotofthings.2.ThemoreIcandofortheclass,thehappierIllbe.3. Hetalksasif(asthough)heknewallaboutit.4. Heissuchagoodteacherthatthestudentsloveandrespecthim.5.Ishallgototheparkunle
11、ssitrains.6. NosoonerhadIgothomethanitbegantorain.7. Wherethereiswater,thereislife.8. Hestudiedhardsothathecouldcatchupwithhisclassmates.9. Sinceyouareverybusy,Iwonttroubleyou.10.Evenif(though)Ifail.Illneverloseheart.11.Onceyoubeginthework,youmustcontinue.12.Iwillfindherwherevershemaybe.13. Nowthaty
12、ouvecome,youdbetterhavedinnerwithus.14. Hewassoexcitedthathecouldntfallasleep.15. Wemustdoeverythingashetellsus.16. IndiaismuchbiggerthanJapan.17. Nomatterwhenyoucome,youarewarmlywelcome.18. As(So)longasyouworkhard,youcancatchupwiththeotherclassmates.二、用合适的连词填空：1. Dr.Bethune(白求恩)cametoChina_hewasfif
13、ty.2. Hebegantowork_hegotthere.3. Letsbeginourmeeting_everyoneishere.4. IliketheEnglishpeople,_Idontliketheirfood.5. _yougoinChina,youcanseesmilingfaces.6. Hedidntcometothelecture,_hewasverybusy.7. _wehadenoughtime,wewalkedtothecinema.8. Theywillhelpyou_youmeetwithdifficulty.9. _wecametotheuniversity,wehavelearntquitealot.10.Ididntjointhemyesterdayevening_Ihadtogotoanimportantmeeting.11. Wewouldtrytogetacar_wecouldalltraveltogethermoreeasily.12. Shewouldntforgethermothersbirthday_sheseldomwrotetoherfamily.13. Weredoingeverythingwecantomakethingsaseasyforyou_
