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1、AdverbialClauses -语法要点状语可用来修饰谓语动词、形容词、整个句子等等，状语主要由副词或与之相当的其他词类、短语或从句担任，下面主要讲述状语语从句，及状语从句中的注意事项。1.AdverbialClausesofTime:（时间…….）DifferentKindsofAdverbialClauses:2.AdverbialClausesofReason(原因…….）3.AdverbialClausesofConditions(条件…….）4.AdverbialClausesofP
2、lace(地点…….）5.AdverbialClausesofPurpose(目的…….）6.AdverbialClausesofResult（结果…….）7.AdverbialClausesofComparison（比较）8.AdverbialClausesofConcession(让步…….）9.AdverbClausesofManner(方式…….)1.AdverbialClausesofTime:（时间状语从句）when,while,as,before,after,since,until,
3、assoonas,themoment,immediately,theminute,thesecond….everytime,eachtime,bythetime1)Whenhecomesheretomorrow,I’llcallyou.(atthattime)I.when2)Sorry，Iwasoutwhenyoucalledme.1)Whilehewaswalkinginthestreet,hemetTim.(分词短语）Whilewalkinginthestreet,hemetTim.Walki
4、nginthestreet,hemetTom.2)HelearnedtospeakEnglishwhilehewashere.3)Iliketeawhileshelikescoffee.(表示对比)IIwhileIII.as(一边...一边,随着）1)Astheywerepickingtea,thegirlsweresinginghappily.2)Shesangassheworked.区别---When,while,aswhen从句的重点不在动作本身发生的状态，而只是把它作为一个时间点when从
5、句的动词大多是瞬时动词When引导的从句中动作，往往发生在主句动作之前或之后When:主句动作正在进行，从句中动作往往出乎意料区别---When,while,aswhile从句的侧重点在于描述动作正在发生的状态while从句一般用的是正在进行时，而另一件事的状态没有硬性的要求，根据具体情况而定while表示的是一段时间，是一个过程区别---When,while,asWhile：如果含有“一段时间”的含义的时候，就可以用while。例如：Strikewhiletheironishot.趁热打铁。（趁
6、着铁是热的这段时间，赶紧打铁）Strikewhentheironishot.（铁只热了一下，打一下，然后铁就冷了）区别---When,while,asas从句表示的也是一件事情正在发生，另一件事也正在进行当中as从句用的一般不用正在进行时，而只是一般过去时Thestudentstooknotesastheylistened．学生们边听课边做笔记。Aswetalkedon,hegotmoreandmoreexcited.我们继续往下谈的时候,他越来越兴奋。Thelittlegirlssangasth
7、eywent．小姑娘们一边走，一边唱。IV.BeforeItwon’tbelongbeforehefinisheshiswriting.Iknockedthedoorseveraltimesbeforeyoucametoopenit.V.AfterAfterhe(had)finishedhiswork,heleftthere.He(had)finishedhisworkbeforehelefthere.Afterfinishinghiswork,helefthere.Havingfinishedh
8、iswork,helefthere.VI.since(fromthetimethat)1)Ihaveknownhimeversincehewasaboy.2)IhaveworkedheresinceIgraduatedfromtheuniversity.3)Itis(hasbeen)twoyearssincehecamehere.VII.until(till)(uptothetimethat)1)Hewillnotgotobeduntil(till)hismothercomes.2
