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1、状语从句的考点讲解和训练【考点直击】1.时间状语从句2.条件状语从句3.原因状语从句4.结果状语从句5.比较状语从句6.目的状语从句7.让步状语从句8.地点状语从句 【名师点睛】用来修饰主句中的动词,副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句,地点状语从句,条件状语从句,原因状语从句,结果状语从句,比较状语从句,目的状语从句,让步状语从句。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
2、如:ItwasraininghardwhenIgottoschoolyesterday.Whilehe(do)hishomework,thetelephonerang.Ashewalkedalongthelake,hesanghappily.He(learn)alittleChinesebeforehecametoChina.Afterhefinishedmiddleschool,hewenttoworkinafactory.(2)在时间状语从句里,。例如:He’llringyouupassoonashe(到达)New
3、York.Iwilltellhimeverythingwhenhe(come)back.Hewon’tbelieveituntilhe(see)itwithhisowneyes.(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,其含义是“”,谓语动词。如果主句用否定式,其含义是“”,“”,谓语动词可用。例如:Theyoungmanreadtillthelightwentout.Let’swaituntiltherainstops. Wewon’tstartuntilBobcomes
4、. 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:Whatshallwedoifit(下雨)tomorrow?Don’tleavethebuildingunlesshe(回来).(2)在条件状语从句里,。例如:I’llhelpyouwithyourEnglishifIamfreetomorrow.Hewon’tbelateunlessheisill.(3)“”在意思上相当于的复合句。例如:Hurryup,oryou’llbe
5、late.=Studyhardandyouwillpasstheexam.=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’tanswerthequestion,I’llasksomeoneelse.(2)because表示。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
6、since,一般用来表示。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)。Becauseyouarelateforschool,soyouhavetostayhereforanotherfiveminters.(判断对错)4.结果状语从句(1)结果状语从句由so…that
7、,such…that,sothat引导。例如:Heissopoorthathecan’tbuyabikeforhisson.Sheissuchagoodteacherthateverybodylikesher.Mypencilfellunderthedesk,sothatIcouldn’tseeit.(2)so…that语such...that可以互换。例如: 在由so...that引导的结果状语从句中,so是词,与词连用。其结构是:“...so+()+that+从句”。例如:Hewassogladthathecou
8、ldn’tsayaword.Thehallissobigthatitcanhold2,000people.Motherlivessofarawaythatwehardlyeverseeher.在由such…that引导的结果状语从句中,such是词,它修饰的可以是,也可以是;名词前面可以带形容词,也可不带。如果是单数可数名词,前面