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1、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:HeisleavingforShanghaiIboughtacomputerTheschoolsportsmeetingwillbeheld4.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
2、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,GrammarAdverbialclauseoftime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
3、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When
4、theclockstrucktwelve,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,
5、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…”,
6、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。Fillint
7、heblankwith“when,while,as”1______youmeetawordyoudon'tknow,consultthedictionary.2.Thestudentstooknotes_____theylistened.3._____thewindrosethenoiseincreased.4.Shecalled_______Iwasout.5.________youhavefinishedyourwork,youmayhavearest.whenasAswhileWhenWedonotnecessaril
8、ygrowwiser___wegrowolder.________inViennahestudiedmusic.________twodetectiveswerekeepingguardatthedoor,twoothersopenedtheparcel.Hedroppedtheglass