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1、中考英语考点:状语从句【分类】时间状语从句 when,whenever,while,as,before,after,since,till,once,assoonas,etc.地点状语从句 where,wherever原因状语从句 because,since,as,for,nowthat,etc.目的状语从句 inorderthat,sothat,that,etc.结果状语从句 so…that,sothat,such…that,that,etc.条件状语从句 if,unless,as(so)longas,etc.让步状语从
2、句 though,although,evenif,eventhough,however,whatever,as,etc.比较状语从句 as…as,so…as,than,etc.方式状语从句 as,asif,asthough,etc.【定义】用来修饰主句中的动词,副词和形容词的从句叫状语从句。1.时间状语从句(1)时间状语从句常用when,as,while,before,after,since,till,until,assoonas等连词来引导。例如:Itwasraininghardwhengottoschoolyesterday
3、.Whilehewasdoinghishomework,thetelephonerang.Ashewalkedalongthelake,hesanghappily.HehadlearnedalittleChinesebeforehecametoChina.Afterhefinishedmiddleschool,hewenttoworkinafactory.(2)在时间状语从句里,通常不用将来时态,用现在时态表示将来的动作或状态。例如:I’llringyouupassoonasIgettoNewYork.Iwilltellhimeve
4、rythingwhenhecomesback.Hewon’tbelieveituntilheseesitwithhisowneyes.(3)在带有till或until引导的时间状语从句的主从复合句里,如果主句用肯定式,其含义是“一直到……时”,谓语动词只能用延续性动词。如果主句用否定式,其含义是“直到……才……”,“在……以前不……”,谓语动词可用瞬间动词。例如:Theyoungmanreadtillthelightwentout.Let’swaituntiltherainstops.Wewon’tstartuntilBobcome
5、s.Don’tgetoffuntilthebusstops.2.条件状语从句(1)条件状语从句通常由if,unless引导。例如:Whatshallwedoifitsnowstomorrow?Don’tleavethebuildingunlessItellyouto.(2)在条件状语从句里,谓语动词通常用现在时态表示将来的动作或状态。例如:I’llhelpyouwithyourEnglishifamfreetomorrow.Hewon’tbelateunlessheisill.(3)“祈使句+and(or)+陈述句”相当于一个带有条
6、件状语从句的复合句。例如:Hurryup,oryou’llbelate.5=Ifyoudon’thurryup,you’llbelate.Studyhardandyouwillpasstheexam.=Ifyoustudyhard,youwillpasstheexam.3.原因状语从句(1)原因状语从句通常由because,since,as引导。例如:Hedidn’tcometoschoolbecausehewasill.Asitisraining,weshallnotgothezoo.Sinceyoucan’tanswertheq
7、uestion,I’llasksomeoneelse.(2)because表示直接原因,语气最强。Because引导的原因状语从句多放在主句之后。回答由why提出的问题,只能用because。As和since语气较弱,一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。例如:------Whyaren’tgoingthere?------BecauseIdon’twantto.Ashehasnocar,hecan’tgetthereeasily.Sincewehavenomoney,wecan’tbuyit.(3
8、)because和so不能同用在一个句子里。4.结果状语从句(1)结果状语从句由so…that,such…that,sothat引导。例如:Heissopoorthathecan’tbuyabikeforhisson.Sheissuc