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时间:2019-05-30
《2014高考英语二轮语法篇专题:专题12状语从句课件》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、专题十二状语从句状语从句在句中相当于副词作状语,又叫副词性从句。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、原因、目的、结果、条件、方式、比较、让步等。状语从句通常由一个连词引导,也可以由一个起连词作用的词组引导。状语从句是近几年高考试题中常见的一个重要考点。状语从句的分类及常用连接词种类从属连词例句说明时间状语从句whenWhen-everWhenIcameintotheroom,hewaswritingaletter.Youcaneatfoodfreeinmyrestaurantwheneveryoulik
2、e.when指“某一具体的时间”;whenever指“在任何一个不具体的时间”。whileWhileJohnwasreading,IwaswatchingTV.Istayedwhilehewasaway.while指“在……期间”,引导的动作必须是持续性的。asTheytalkedastheywalkedalongtheriver.Astimegoesby,IlikeChinabetter.as(一边……一边)表示持续性动作,强调主句和从句动作同时发生;随着。beforeBeforeIcouldgetinaword,thetailorhadmeasur
3、edme.(还没来得及就……)Wehadn’trunamilebeforehefelttired.(还没……就……)Wehadsailed4daysbeforewesawland.(……才……)Pleasewriteitdownbeforeyouforgetit.(趁还没……就……)Itwillbefiveyearsbeforeheleavesthere.Hisgrandpadiedin1999.ItwastwoyearsbeforehecamebackfromAmerica.before引导从句时,词义非常灵活。AfterHearrivedafter
4、thegamestarted.tilluntilHeremainedtheretill/untilshearrived.Shewon’tgotobedtill/untilhereturnshome.Itisnotuntilhereturnshomethatshewillgotobed.Notuntilhereturnshomewillshegotobed.若主句动作是持续性动作,常用肯定式,表示“直到……为止”;若主句动作是瞬间动词,要用否定式,表“直……才”,“在……以前不”;从句放在句首时表示强调,一般用until并引起部分倒装。时间状语从句sin
5、ceGreatchangeshavetakenplaceinChinasince1978.since在时间状语从句中,不论用短暂动词、延续动词还是状态动词的一般过去时,通常都表示从动作或状态的完成或结束时算起,主句时态多用现在完成时。assoonashardly...whennosooner...thanthemomenttheinstantthesecondimmediatelydirectlyinstantlyAssoonasIarriveinShanghai,I’llwritetoyou.Ihadhardlygothomewhenitbegant
6、orain.=HardlyhadIgothomewhenitbegantorain.ThemomentIsawhimIknewtherewasnohope.ImmediatelyhecameItoldhimthenews.Wehadnosoonerreachedtheairportthantheplanetookoff.=Nosoonerhadwereachedtheairportthantheplanetookoff.这些结构都表示“一……就……”。时间状语从句every/eachtimenext/lasttimebythetimethefirstt
7、imeEvery/EachtimeIwasintrouble,hewouldcometomyhelp.IfellinlovewithherthefirsttimeIsawher.这类名词短语相当于连词,引导时间状语从句。地点状语从句wherewhereverWherethereisawill,thereisaway.Youcangowhereveryoulikethesedays.where与wherever意义基本相同,但后者语气较强,多用于书面语。原因状语从句becauseIcamebacklateyesterdaybecauseIwasondut
8、y.because用来回答why的问题,语气最强,一般放在主句之后。sinceSinceeve
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