一般可分为八大类,分别表示时间、地点、原因、目的、结果、条件

状语从句主要用来修饰主句或主句的谓语。一般可分为八大类，分别表示时间、地点、原因、目的、结果、条件、让步、比较。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。时间状语从句关联词as/when/while;after;before;since;till/untilwhenever;nosooner…than/hardly…when副词immediately;名词短语themoment;theminute;thesecond;each(every)time;theday(year);nexttime;thefirst(second/last)time;bythetime条件状语从句if;unless;as(so)longas;原因状语从句because;as;since;now(that)结果状语从句so(such)…that….目的状语从句sothat;inorderthat;让步状语从句though;although;as;however;nomatter….;疑问词+ever；比较状语从句than;as(so)….as;themore….themore地点状语从句wherewherever常用引导词：______,__,_____,__________._____,_______,_____,____,______,_______.特殊引导词：①Ididn’trealizehowspecialmymotherwas___Ibecameanadult.②____JohnwaswatchingTV,hiswifewascooking.3.NosoonerhadIarrivedhome____itbegantorain.whenaswhileassoonas,whilebeforeaftersincetilluntiltheminute,themoment,theday，immediately,nosooner…than,hardly…when,scarcely…when1)when，while，as的区别：①三者均可表示“当……的时候”，如果主句表示的是短暂的动作，而从句表示的是一段时间，三者可通用。②as和when都可与终止性动词连用，while只能与延续性动词连用。如：Itwassnowing____wegottotheairport．当我们到达机场时，天正下着雪。（不能用while）③as强调主句与从句表示的动作同时发生；while强调主句表示的动作持续于while所指的整个时间内；when可指主、从句所述动作同时或先后发生。如：Hesangashewentalong．他边走边唱。Pleasewrite____Iread．我读的时候，请写下来。____hereachedhome，hehadalittlerest．回到家后，他休息了一会儿。常用引导词：________,＿＿＿＿＿＿特殊引导词：要点：引导条件状语从句的连词有if（如果）、unless（除非）等，unless在意义上相当于if．．．not。条件状语从句也像时间状语从句一样，如果主句用将来时，从句要用现在时代替将来时。如：Youwillfail____youstudyhard．（＝Youwillfailifyoudon'tstudyhard．）除非你努力学习，否则你会失败。ifunlessas/solongas,①We’llstartourproject__thepresidentagrees.②Youwillcertainlysucceed__________youkeepontrying.常用引导词：__________,_____________特殊引导词：as(同级比较),than(不同程度的比较)themore…themore…;AistoBwhat/asXistoY;no…morethan;①Sheis___bad-tempered____hermother.②Thehouseisthreetimes___big___ours.③____moreyouexercise,____healthieryouwillbe.Hespoke___fastthatIcouldn'tfollowhim．他讲得太快，我跟不上。Hetoldus____funnystoriesthatwealllaughed．他给我们讲了那么多有趣的故事，我们全都哈哈大笑。常用引导词：__________,__________.so…thatsuch…that①Hegotup___earlythathecaughtthefirstbus.②It’s____agoodchancethatwemustnotmissit.常用引导词：_____________特殊引导词：_______________________________Wherethereisawill，thereisaway．________________________.Whereveryougo，Igotoo．无论你去哪里，我都去。wherewherever,anywhere,everywhere①Airwillbeheavilypollutedwheretherearefactories.②Whereveryougo,youshouldworkhard.比较:because常回答why引导的疑问句，该从句一般位于主句后；since比as正式，两者不回答why引导的问句，而且其从句一般放在句首。如：—Whycan'tIgo？为什么我不能去？—______you'retooyoung．因为你年纪太小了。As（____）youarenotfeelingwell，you'dbetterstayathome．既然你不太舒服，还是留在家里的好。常用引导词：_________,_________,_____becausesinceas常用引导词：________,________________sothatinorderthat①Thebossaskedthesecretarytohurryupwiththeletters__________hecouldsignthem.②Theteacherraisedhisvoice_______________thestudentsinthebackcouldhearmoreclearly.常用引导词：_______,_________,______,___________特殊引导词：thoughalthoughevenifeventhoughnomatter…①_______it‘shardwork，Ienjoyit．尽管这工作很辛苦，我还是很喜欢。②____________howhardtheworkwas，henevergaveitup．不管工作多么艰难，他都从不放弃。②_______________hardhetried,shecouldnotchangehermind.③Hewon’tlisten______youmaysay.【考点1】区分when，if引导宾语从句和状语从句的不同：when引导时间状语从句意为“当……时候”，引导宾语从句意为“什么时候”；if引导条件状语从句意为“如果”，引导宾语从句意为“是否”。如：1．—Mikewantstoknowif_____apicnictomorrow．—Yes．Butifit_____，we'llvisitthemuseuminsteadA．youhave；willrainB．youwillhave；willrainC．youwillhave；rainsD．willyouhave；rains2．—Doyouknowwhenhe_____backtomorrow？—Sorry，Idon't．Whenhe_____back，I'lltellyouA．comes；comesB．comes；willcomeC．willcome；comesD．willcome；willcome答案1】1．C2．C:1）It______tenyearssincethey______toFrance.A．as；coveredB．was；havemovedC．is；havemovedD．is；moved2）He______waituntiltherain______．A．won't；willstopB．won't；stopC．will；stopsD．will；willstop3）HewillgototheGreatWallifit______tomorrow．A．won'trainB．doesn'trainC．don'trainD．isn'training4）______youeatoldfood，youmaybeill．A．BeforeB．WhyC．IfD．Which5）Jackrunsas______asTom．A．fastB．fasterC．fastestD．muchf6）30，000dollarsisalargeamountofmoney，butit's______thanweneed．A．formoreB．verymuchC．farlessD．verylittle答案:1)D2)C3)B4)C5)A6)C7）MissGaoaskedaquestion，butitwas______thatnobodycouldanswerit．A．verydifficultB．toodifficultC．difficultenoughD．sodifficult8）Ican'tunderstandthispassage_____therearenonewwordsinit．A．ifB．becauseC．thoughD．and9）“WhydidLiLeiuseapencil？”“_____hispenwasbroken．”A．BecauseB．WhenC．UntilD．If答案:7)D8)C9)A