中考英语状语从句复习完整ppt课件PPT文档格式.ppt
《中考英语状语从句复习完整ppt课件PPT文档格式.ppt》由会员分享,可在线阅读,更多相关《中考英语状语从句复习完整ppt课件PPT文档格式.ppt(48页珍藏版)》请在冰豆网上搜索。
从九大状语从句来看,应将复习重点放在时间状语从句、条件状语从句、目的状语从句、结果状语从句和比较状语从句上。
精选ppt,4,1.时间状语从句引导时间状语从句的连词有:
while,when,as,assoonas,till,until,notuntil,before,after,since,etc,精选ppt,5,1)when,while,aswhen可表动作同时发生或先后发生,从句动词延续非延续都行。
如:
Whenhefinishedthework,hehadalittlerestwhile表动作同时发生,从句动词必须可延续。
Pleasekeepquietwhileshewassleepingas表动作同时发生;
从句动词延续非延续都行,常指一边一边,as还可以说明两种正发展或变化的情况,有“随着”的意思,表时间的推移。
如:
HesangashewentalongAsIgetolder,Ihavemoreconfidence.,精选ppt,6,2)before,afterbefore“在之前”。
after“在之后”。
Theyhadalreadyhadbreakfastbeforetheywenttoschool.Theytalkedaboutthepartyafterthepeopleleft.(2010.衢州中考)Youshouldgooveryourtestpaper_youhanditin.A.beforeB.thoughC.assoonas,精选ppt,7,1.Hewasworkingatthetable_Iwentin.A.whenB.whileC.assoonas2.Mymotherwascooking_Iwasdoingmyhomework.A.whenB.whileC.before3._thedaywenton,theweathergotworse.A.WhileB.WhenC.As4.Summerishere,andthewarmthismakingussleepy,butpleasestayawake_ourteachersaretalking.A.whileB.sinceC.before,精选ppt,8,3)until,tilluntil和till在肯定句中译为“直到为止”,主句要用延续性动词在否定句中译为“直到才”,主句动词不受限,常用终止性动词,这时till和until可用before替换。
IwaitedtilluntilhearrivedWewontstartuntilBobcomes=Wewontstart_Bobcomes,before,精选ppt,9,1.He_tothebeduntilhismothercameback.A.didntgoB.wentC.goes2.Youcan_hereuntiltherainstops.A.comeB.getC.stay3.Wewontknowtheimportanceofhealth_ithasgone.A.whenB.untilC.before4.-Lifeislikeaboxofchocolates.-Isee!
Wellknowthetasteoflife_weveeatentheboxofchocolates.A.whenB.untilC.before,精选ppt,10,4)assoonas表示主句发生的动作发生在从句动作之后,意为“一就”。
MybrotherwentoutassoonasIgothome.IllphoneyouassoonasIarriveinBeijing.5)since:
表示“自从以来”,从句中常用_时,主句用_时,主句动词要用_动词.(对since引导的时间状语提问要用howlong).如:
WherehaveyoubeensinceIsawyoulasttime?
过去,一般现在时或现在完成,可延续性,精选ppt,11,1Itistenyears_Isawyoulasttime.AsinceBwhenCthatDif2Youshallhavethebook_Ihavereadit.AsothatBthoughCassoonas,精选ppt,12,注意:
时间状语从句的时态1)主将,从现(when,before,after,until,assoonas引导从句时):
Theboywillbeawriterwhenhegrowsup.2)主情,从现:
Whenthelightsarered,thetrafficmuststop.3)主祈,从现:
Pleasedontgotobedbeforeyoufinishyourhomework.,精选ppt,13,4)主句为一般现在时,从句也用现在范畴的时态:
IoftenreadafterIgetupinthemorning.5)主句为一般过去时,从句也用过去范畴的时态:
IlikedreadingwhenIwasyoung.ShewaswatchingTVwhileIwasreading.,精选ppt,14,1.Wewillsetoutassoonasourmonitor_.A.comesB.comingC.willcome2.Youcanstayhereuntiltherain_.A.stopB.stopsC.isstopping3.Whenyou_theoffice,youdbetter_thatthelightsareturnedoff.A.willleave;
makesureB.willleave;
makesureC.leave;
makesure,精选ppt,15,4.Motherdidntgotobeduntilshe_cleaningtheroom.A.finishesB.finishedC.isfinished5.IoftenwatchTVwhenmymother_.A.iscookingB.cookC.cooked6.-Doyouknowwhenhe_?
-Whenhe_,Iwilltellyou.A.willcome;
comesB.comes;
comingC.comes;
willcome,精选ppt,16,2.条件状语从句1)引导条件状语从句的连词有if(如果)、unless(除非)等,条件状语从句也像时间状语从句一样,如果主句用将来时,从句要用现在时代替将来时。
Whatshallwedoifitsnowstomorrow?
DontleavethebuildingunlessItellyouto.2)unless在意义上相当于ifnot。
Youwillfailunlessyoustudyhard(同义句)=Youwillfailifyoudontstudyhard3)aslongas只要Iwillgothereaslongasheinvitesme.,精选ppt,17,4)“祈使句+and(or)+陈述句”在意思上相当于条件状语从句。
例如:
Hurryup,oryoullbelate.=Ifyoudonthurryup,youllbelate.Studyhardandyouwillpasstheexam.=Ifyoustudyhard,youwillpasstheexam.5)用介词with,without可以把条件状语从句改写成简单句:
Ifthereisnowater,thefishmaydie.=Fishmaydiewithoutwater.Ifyouhelpme,Illfinishmytaskontime.=Withyourhelp,Illfinishmytaskontime.,精选ppt,18,1.Idontknowifhe_tomorrow.Ifhe_,Illmeethim.A.willcome;
comesC.willcome;
willcome2._yougaveapartyandnoonecome,whatwouldyoudo?
AAlthoughBIfC.Unless3.youwontpasstheexam_youworkhard.AAlthoughBIfC.Unless,精选ppt,19,4.Canyouguessifthey_speakingEnglishwithus?
Ithinktheywilldoifthey_free.willpractice,areB.willpractice,willbeC.practice,will5.Yourdreamwontcometrue_youknowwhatyourdreamis.A.afterB.unlessC.if,精选ppt,20,3.比较状语从句比较状语从句通常由asas,比较级+than等连词引导,比较连词前后的结构要一致。
TomrunsfasterthanJohndoes.Thisclassroomisasbigasthatone.1)表示甲与乙在某一方面相同时肯定:
“as原级as”句型;
否定:
“notasso原级as”如:
DalianisasbeautifulasShenzhenIdontrunassofastasLucy=IrunlessfastthanLucy.2)表示甲超过或不及乙时,用“比较级than从句”(从句中常省略意义与主句相同的部分。
Herunsfasterthanyou(do)Todayislesscoldthanyesterday=Todayisntascoldasyesterday.,精选ppt,21,原级比较需要注意的几个用法:
1.表示“是的几倍”句型倍数/分数/百分数+as+形容词原级+as翻译下列句子(课本链接)他们的学校是我们的三倍。
Theirschoolisthreetimesaslargeasours.我的英语还不如你的一半。
MyEnglishisnothal