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1、语法状语从句讲解精品文档语法状语从句由从句担任的状语，在句子中可修饰谓语（或其它动词）、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。第一讲时间,地点状语从句时间状语从句：when,while,as,before,after,since,wheneveruntil,till,bythetime(注意时态)assoonas,hadhardly…when,hadnosooner…than,(ondoingsth…)themoment,everytime/eachtime,thefirsttime,onc
2、ee.g:Whenhecame,Ihadcleanedtheclassroom.Hedidn’tstopworkinguntilhismothercamebake.Heworkeduntilhismothercameback.Assoonashereturned,heboughtanewflat.HehadnosoonerreturnedthanheboughtanewflatHecametoscenethemomentheheardthenews.IthoughtherniceandhonestthefirsttimeImethim.Oncehe
3、makesupyourmind,hewon’tchangehismind.ItwastwoyearsbeforeImethimagain.=TwoyearspassedbeforeImethimagain.注意点1.when引导的从句动词可以是延续性的或短暂性的，while引导的从句中动词必须是延续性的；while有时并不表示时间，而表示对比，表示“而”、“却”。WhenIgothomeIfoundthedoorlocked.While(或When)wewereworkinginthefields,itsuddenlybegantorain.His
4、pencilisred,whilemineisyellow.2.till与untilnot…until/till解释为直到…才…主句动词一般是短暂性的…till/until…解释为直到…为止主句动词一般是延续性的一般情况下可以互换，但until可以位于句首，till则不能。Heworkeduntilitwasdark.Hedidn’tstopworkinguntilitwasdark.Untilitstopsraining，thechildrencan’tgoout.＝Notuntiltherainstopscanthechildrengoout.
5、地点状语从句引导地点状语从句的连词是where和wherever等。I×llgowhereverthepeoplewantmetogo.(wherever＝toanyplacewhere)Heworkswherehisgrandfatherfought.(where＝intheplacewhere)Youmuststaywhereyouare.=Youmuststayintheplacewhereyouare.Whereveryougo,Igotoo.Wherethereiswater,thereislife.(那儿有…那儿就有…Wherether
6、eisawill,thereisaway.)圈出其中的从句并翻译:1.Wheneveritishisturntospeak,hegetsnervous.2.Everytimehecomes,healwaystellsussomethinginteresting.3.WhenIgetthenews,Iwillletyouknowassoonaspossible.收集于网络，如有侵权请联系管理员删除精品文档1.Oncehemakesapromise,hewillneverbreakit.2.Ihadnosoonerrunintotheschoolgat
7、ethanIheardthebellforclass.3.Ifoundthelostwatchunderadeskafterthechildrenhadleftforhome.4.Hehadtobecalledtwoorthreetimesbeforehecamedowntodinner.5.Wedidn’tnoticeanythingwrongwiththewasheruntilwestartedusingit.6.Thehuntermademarkonthetreewherehestops.7.Whereverheis,hewillfindti
8、metodosomereading.第二讲原因、目的、结果状语从句原因状语从句原因状语从句是表示原因或理由的，引导这类从句
