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当前位置:首页 > 商业/管理/HR > 管理学资料 > 时间状语从句module3
表示行为发生的时间,一般由副词,介词短语或相当于副词的词组或短语来充当。Forexample:1.HeisleavingforShanghai2.Iboughtacomputer3.Theschoolsportsmeetingwillbeheld4.Igetup5.Hedoesn’tgotoschooltomorrow.2daysago.thedayaftertomorrow.at6o’clocktoday.everyday.时间状语如果状语不是简单的“单词或短语”,而是句子呢?——称为状语从句你来看我,我非常高兴。他敲门的时候,我正在睡觉。eg:Ifeelveryhappyeg:Iwassleeping.状语从句可位于主句之前,也可位于主句之后。•状语从句放在主句之前时,常用逗号分开。•状语从句放在主句之后时,一般不用逗号分开。whenyoucometoseeme.Whenheknockedatthedoor,•Grammar•Adverbialclauseoftime时间状语从句:引导时间状语从句的从属连词有:when,while,as,whenever,before,after,since,till,until,assoonas等引导。选when?还是as比较像,选while吧!崩溃ING!when,while和as1.When既可引导一个持续动作,也可引导一个短暂动作,可用于主句和从句动作同时发生或从句动作先于主句动作。当主句是将来时,从句的时态用现在时。(when在实际中用得最多)takeaphotomeetcloseopencomelandtakeoffseearriveputonturnoffturnoncallhearwalkcooksleepwritereaddostudyridesingplayeatdrinklookforlisten短暂性动词持续性动词•Whentheclockstrucktwelve,allthelightsinthestreetswerestillon.•Whenhewasatcollege,hestudiedveryhard.•IwillseeyouwhenIcomebackfromAmerica.•Hewenthomewhenhehadfinishedhishomework.短暂•持续•主将从现从动前主动后2.while指“在某一段时间里”,“在…期间”,引导的动作必须是持续性的;强调主从句动作同时发生(可表对比,译为“而,却”)。•Whilehewasreading,hiswifecamein.Whilewewereswimmingsomeonestoleourclothes.如果主句的动作在从句的动作过程中发生,从句常用进行时。•Janewasdressedinblue,whileMarywasdressedinred.Onepersonmayliketospendhisvacationattheseashore,whileanothermaypreferthemountains.3.as强调并行发生,不指先后,尤指短动作或事件同时发生;主从句同时,可翻译为”一边……一边”,”随着…”,强调两个动作紧接着发生。1.ThestudentssangtheEnglishsongastheywentalongtheroad.2.Hesangasheworked.3.Ashegrewolderhebecamemoreconfident.when,as,while总结1、When可指时间点,又可指时间段,从句中可用延续性动词,也可用非延续性动词。2、While总是指一个时间段,从句中必须用延续性动词。3、as多用于平行结构。表示两个动作同时发生:一个主语同时进行两个动作:一种状态随另一种状态的变化而变化。Fillintheblankwith“when,while,as”1______youmeetawordyoudon'tknow,consultthedictionary.2.Thestudentstooknotes_____theylistened.3._____thewindrosethenoiseincreased.4.Shecalled_______Iwasout.5.________youhavefinishedyourwork,youmayhavearest.whenasAswhileWhen1.Wedonotnecessarilygrowwiser___wegrowolder.2.________inViennahestudiedmusic.3.________twodetectiveswerekeepingguardatthedoor,twoothersopenedtheparcel.4.Hedroppedtheglass___hestoodup.5._______Icamehome,mywifewascookingdinner.asWhileWhileasWhen区别•when从句的谓语动词可以在主句谓语动作之前或同时发生;while和as从句的谓语动作必须是和主句谓语动作同时发生。1.从句动作在主句动作前发生,只用when。Whenhehadfinishedhishomework,hetookashortrest.2.It’scoldwhenitsnows.暗示一种规律性,表示“每当”3.固定搭配中:bedoingsthwhen正在某事,这时……Thechildrenwereplayingfootballinthegroundwhenitbegantorain.孩子们正在操场上踢球,这时开始下雨了。beabouttodosthwhen正准备做某事,这时……Iwasabouttotellherthesecretwhensomeonepattedmeontheshoulder.我正想告诉她这个秘密,这时有人拍了我的肩膀。•从句动作和主句动作同时发生,且从句动作为延续性动词时,when,while,as都可使用。(主短从延三者都可,主延从短只能用when和as)•When/While/Asweweredancing,astrangercamein.•(dance为延续性动词)当我们跳舞时,一位陌生人走了进来。•Itwasrainingwhen/aswearrived.•(arrive为短暂性动作)•当主句、从句动作同时进行,从句动作的时间概念淡化,而主要表示主句动作发生的背景或条件时,只能用as。这时,as常表示“随着……”;“一边……,一边……”之意。•Asthetimewenton,theweathergotworse.(as表示“随着……”之意)assoonas的用法•assoonas连接的时间状语从句中,指未发生的动作,规律是:主句一般将来时,从句用一般现在时代替一般将来时(主将从现)•Iwilltellhimthenewsassoonashecomesback。•Theywillbecrazyassoonastheyhearthenews指紧接着发生的两个短动作,主从句都用一般过去时1)HetookouthisEnglishbooksassoonashesatdown2)Weatealotassoonaswegothome.小结:看assoonas的时态,要么两边都是过去时,要么就是主将从现Since自从……以来Sbhave/hasdone…since…did自从…就已经做了某事eg:IhavedreamedaboutbecomingadoctorsinceIwasachild.Itis/hasbeen+一段时间+since从句(did)自从…以来有Itis/hasbeen3yearssincethewarbrokeout.自从战争爆发已经有10年。Until直到Wewaiteduntilhecameback.我们一直等到他回来。Shedidn’tstopworkinguntileleveno’clock.她到11点钟才停止工作。如主句动词是延续性动作,常用肯定式,表示“直到…为止”;如主句动词是瞬间动词,常用否定式,表示“直到…才”beforeItwillbe+一段时间+before从句(do/does)要过……才能做Itwillbethreedaysbeforeyoucanopenthecoverofthejar.Itwillnotbe+一段时间+before从句要不了……就能做Itwillnotbetenyearsbeforewemeetagain.Itwas+一段时间+before从句(did)做了……过了……Itwastenyearsbeforewedidtheexperiment.Itwasnot+一段时间+before从句(did)做了……没过……Itwasnotlongbeforewereturnedback.
本文标题:时间状语从句module3
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