状语从句 　　状语从句主要用来修饰主句或主句的谓语.一般可分为九大类,分别表示时间、 　　地点、原因、目的、结果、条件、让步、比较和方式.尽管种类较多,但由于 　　状语从句与汉语结构和用法相似,所以理解和掌握它并不难.状语从句的关键 　　是要掌握引导不同状语从句的常用连接词和特殊的连接词即考点.现分别列举 　　如下: 　　1．时间状语从句 　　引导词：when,as,while,assoonas,while,before,after,since, 　　till,until,theminute,themoment,thesecond,everytime,theday, 　　theinstant,immediately,directly,nosooner…than,hardly…when, 　　scarcely…when 　　Ididn'trealizehowspecialmyfatherwasuntilIwas18. 　　WhileTomwaswatchingTV,hiswifewasreading. 　　NosoonerhadIarrivedhomethanitbegantorain. 　　EverytimeItakeyouradvice,Igetintotrouble. 　　2．地点状语从句 　　引导词：where,wherever,anywhere,everywhere 　　Generally,airwillbeheavilypollutedwheretherearefactories. 　　Whereveryougo,youshouldbringthemp3playerwithyou. 　　3．原因状语从句 　　引导词：because,since,as,since,seeingthat,nowthat,inthat, 　　consideringthat,giventhat,consideringthat,inasmuchas, 　　insomuchas 　　Nowthateverybodyhascome,let'sbeginourclas. 　　Consideringthatheisnomorethan10yearsold,hisheightof 　　1.60misnotnormal. 　　4．目的状语从句 　　引导词：sothat,inorderthat,lest,incase,forfearthat, 　　inthehopethat,forthepurposethat,totheendthat 　　Thebossaskedhissecretarytogivehimthelettersothathecould 　　senditouthimself. 　　Theinstructorraisedhisvoicethatthestudentsatthebackcould 　　hearmoreclearly. 　　5．结果状语从句 　　引导词：so…that,so…that,such…that,suchthat,tothe 　　degreethat,totheextentthat,tosuchadegreethat, 　　Hegotupsoearlythathecaughtthefirsttrain. 　　It'ssuchagoodchancethatwemustnotmissit. 　　6．条件状语从句 　　引导词：if,unless,as/solongas,onlyif,providing/providedthat, 　　supposethat,incasethat,onconditionthat 　　We'llstartourprojectifthemanageragrees. 　　Youwillcertainlysucceedsolongasyoukeepontrying. 　　Providedthatthereisnoopposition,weshallcalloffthemeeting. 　　7．让步状语从句 　　引导词：though,although,evenif,eventhough,as(用在让步状语从句中 　　必须要倒装),while(一般用在句首),nomatter…,inspiteofthe 　　factthat,while,whatever,whoever,wherever,whenever,however, 　　whichever 　　MuchasIrespecthim,Ican'tagreetohisproposal. 　　heoldmanalwaysenjoysswimmingeventhoughitiscold. 　　Nomatterhowhardhetried,shecouldnotchangehermind. 　　8．比较状语从句 　　引导词：as(同级比较),than(不同程度的比较),特殊引导词：themore… 　　themore…;justas…,so…;AistoBwhat/asXistoY; 　　no…morethan;notAsomuchasB 　　Sheisasbad-temperedashermother. 　　Thehouseisthreetimesasbigasours. 　　Themoreyouexercise,thehealthieryouwillbe. 　　Foodistomenwhatoilistomachine.食物之于人,犹如油之于机器. 　　9．方式状语从句 　　引导词：as,asif,how,theway 　　WheninRome,doastheRomando. 　　Shebehavedasifsheweretheboss. 　　Sometimesweteachourchildrenthewayourparentshavetaughtus. 　　定语从句 　　定语从句（AttributiveClauses）在句中做定语,修饰一个名词或代词,被修饰的名词,词组或代词即先行词.定语从句通常出现在先行词