中考复习之四大状语从句（时间条件原因结果）课件

Teacher：状语从句总复习（1）状语从句指的是在主从句中作状语的从句，修饰主句中的动词、形容词或副词等。状语从句放在主句之前时，常用逗号分开;若放在主句之后，一般不用逗号。时间状语01地点状语02条件状语03原因状语04目录CONTENTS01时间状语从句1时间状语(1)时间状语从句常用when,as,while,before,after,since,till,until,assoonas等连词来引导。例如：Itwasraininghard（rainhard下大雨）

whengottoschoolyesterday.Whilehewasdoinghishomework,thetelephonerang.Ashewalkedalong（沿着走）thelake,hesanghappily.A例题.Youshouldfinishyourlessons_______yougoouttoplay.A.beforeB.afterC.whenD.while2时间状语(2)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。例如：I’llringyouupassoonasIgettoNewYork.Iwilltellhimeverythingwhenhecomesback.3时间状语(3)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。如果主句用否定式，其含义是“直到……才……”,“在……以前不……”,谓语动词可用瞬间动词。例如：Theyoungmanreadtillthelightwentout（熄灭）.Wewon’tstartuntilBobcomes.Don’tgetoff（从下来）untilthebusstops.【Till是指直到某一特定事件发生的时候，而在那个时刻之后，该事情或状况仍将持续。

Until是指直到某一特定事件发生的时候，而讲话的人在自己心里认为，在那个时刻之后，该事情或该状况将中止（不怎么可能持续）。固定组合里frommorningtillnight，till/until是不能替换的，】C例题.Thepoliceaskedthechildren_______crossthestreet________thetrafficlightsturnedgreen.A.not;beforeB.don’t;whenC.notto;untilD.not;after02条件状语从句1条件状语(1)条件状语从句通常由if,unless引导。例如：Whatshallwedoifitsnowstomorrow?Don’tleavethebuildingunlessItellyouto.2条件状语(2)在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。例如：I’llhelpyouwithyourEnglishifamfreetomorrow.Hewon’tbelateunlessheisill.3条件状语(3)“祈使句+and(or)+陈述句”在意思上相当于一个带有条件状语从句的复合句。例如：Hurryup,oryou’llbelate.=Ifyoudon’thurryup,you’llbelate.Studyhardandyouwillpasstheexam.=Ifyoustudyhard,youwillpasstheexam.C例题.---Doyouknowifhe_______toplaybasketballwithus?---Ithinkhewillcomeifhe______freetomorrow.A.comes;isB.comes;willbeC.willcome;isD.willcome;willbeB例题.Inthezooifachild_____intothewaterandcan’tswim,thedolphinsmaycomeup______him.A.willfall;tohelpB.falls;tohelp03原因状语从句1原因状语从句(1)原因状语从句通常由because,since,as引导。例如：Hedidn’tcometoschoolbecausehewasill.Asitisraining,weshallnot（不得；不应该）gothezoo.Sinceyoucan’tanswerthequestion,I’llasksomeoneelse.D例题.Iwaslateforclassyesterday_______therewassomethingwrongwithmybike.whenB.thatC.untilD.because2原因状语从句(2)because表示直接原因，语气最强。Because引导的原因状语从句多放在主句之后。回答由why提出的问题，只能用because。例如：------Whyaren’tgoingthere?------BecauseIhavetogoshoppingwithmyparents.because和so不能同用在一个句子里。A例题.Hetookoffhiscoat_______hefelthot.becauseasifsince04结果状语从句1结果状语从句(1)结果状语从句由so…that,such…that,sothat引导。例如：Heissopoorthathecan’tbuyabikeforhisson.Sheissuch

agoodteacherthateverybodylikesher.Mypencilfellunderthedesk,sothatIcouldn’tseeit.B例题.Ihurried_____Iwouldn’tbelateforclass.sinceB.sothatC.asifD.unless2结果状语从句(2)so…that语such...that可以互换。例如：在由so...that引导的结果状语从句中，so是副词，与形容词连用。其结构是:“...so+形容词（副词）+that+从句”。例如：Hewassogladthathecouldn’tsayaword.Thehallissobigthatitcanhold2,000people.Motherlivessofarawaythatwehardlyever（几乎不，从来不）seeher.2结果状语从句在由such…that引导的结果状语从句中，such是形容词，它修饰的可以是单数或复数可数名词，也可以是不可数名词；名词前面可以带形容词，也可不带。如果是单数可数名词，前面需加不定冠词a或an。例如：Itwassuch

ahotdaythatnobodywantedtodoanything.Hehadsuchlongarmsthathecouldalmosttouchtheceiling.（天花板）C例题.Itis______thatwe’dliketogooutforawalk.A.alovelydayB.toolovelyadayC.solovelyadayD.suchlovelyaday3结果状语从句(3)如果名词前由many,much,little,few等词修饰时，只能用so,不用such。例如：Soonthereweresomanydeerthattheyateupallthewildroses.Hehassolittletimethathecan’tgotothecinema（去看电影）withyou.B例题.Maryhad______muchworktodothatshestayedatherofficeallday.suchB.soC.tooD.veryWhen

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……ABCD时间状语从句when,whenever,while,as,before,after,since,till,once（一旦）原因状语从句because,since,as,for,nowthat（既然，由于）结果状语从句so…that,sothat,such…that,that条件状语从句if,unless,as(so)longas总结：状语从句分类及常用连词：04Exercises真题呈现1．Youwillbelateforschool________youdon’tgetupearly.A．but B．if C．and D．or【答案】B2．Manypeopledonotrealizetheimportanceofhealth______theyhavefallenill.A．until B．while C．when D．after【答案】A3．---Whatwasthepartylike?---Wonderful.It’syears____Ienjoyedmyselfsomuch.A．since B．after C．when D．before【答案】A4．－What’syouropinionaboutfriends?－Theyarelikebooks.Wedon’tneedalotofthemthey’regood.A．aslongas B．assoonas C．sothat D．asif【答案】A5．TomakeyourDIYworkperfect,you’dbetternotstart___________yougetallthetoolsready.A．when B．while C．before D．after【答案】CFillingtheblanksKatefellintosleep______shewaslisteningtothemusic.----IsDavidatschooltoday?Wewon'thavesupper______mymothercomesback.Speaktohimslowly______hemayunderstandyoubetter.______shedoesn'tcomeonSunday,I'llgofishingbymyself.Itisfouryears______Ihadleftthatsmallvillage.______theairmoves,itiscalledwind.Wewillgotothepark______itdoesn'traintomo