初中状语从句ppt课件.pptx
状语从句Adverbial Clause,LOREM IPSUM DOLOR,I will call you tomorrow.用来对谓语动词进行补充、说明和完善的成分，我们称之为 状语。I will call you when he comes.当状语部分是由简单句构成的时候，我们称这样的句子为状语从句。,从句,主句,主句+连接词+从句,I will call you when he comes.状语从句有很多种，其中对动作发生的时间进行描述的从句，我们称之为,时间状语从句。,when,while,before,after,until,since,as soon as.,时间状语从句主从句之间的连接词,注意：从句动作既可以发生在时间点，也可以发生在时间段。,when,瞬间动词,延续性动词,1.The students were playing computer games when the teacher came in.2.When I was walking along,I came across a friend of mine.,瞬间动作,延续动作,时态,3.We will go out for a walk when the weather is fine。4.I always drink coffee when I work.5.When he gave me a present,I thanked him.,时态,主将从现（祈使句，情态动词也可视为主将）,主现从现,主过从过,注意：while引导的时间状语从句，主句动作是在从句动作进行的过程中发生的。Someone knocked the door while we were having supper.,while,从句必须是延续性动词,1.Someone knocked the door while we were having supper.2.I was watching TV while my mother was cooking。,时态,when,强调两个动作同时发生，主从句都用进行时，只能用while,1.肯定句：。直到。（表示主句发生的动作一直持续到某一时间才停止，因此，主句动词要使用延续性动词）I have to stay here until the rain stops.I watched TV until my mother returned last night.,until,2.否定句：not.until.直到。才。（表示主句的动作一直持续到某时才开始，主句动词既可以是延续动词，也可以是瞬间动词。）He didnt do his homework until his father came home.I wont go out until I finish my homework.She doesnt watch TV until she finishes her homework every day.,主过从过,主将从现,主现从现,before:在。之前（主句动作发生在从句动作之前）after:在。之后（主句动作发生在从句动作之后）since:自从（主句现在完成时，从句一般过去时）,as soon as:一。就。时态用法上以主将从现最为常见。也有主过从过，主现从现等用法。We will go to the park as soon as the rain stops.,1.My parents were watching TV while I _ on the Internet.A.search B.was searchingC.searched D.searching,2.Ill phone you _ Mary comes home.A.since B.untilC.as soon as D.while3.Please turn off th light_you leave the classroom.A.after B.beforeC.until D.since,4.They didnt realise the importance of study _ they left school.A.when B.while C.after D.until,1.Wehavelivedinthiscity_Imoved herein1990.2.Haveyoudecidedwhatyouwanttobe_ yougrowup?3.Dontworry,Illphoneyou_Igetthe news.,since,when,as soon as,4.Thedrunkmandidntleavethestation_ thepolicecameyesterday.5.Ihaventheardfromhim_hewentto America.6.Iwaited_hecameback.,until,since,i,until,7.Shelikeseverythingtobeinplace_shestartstowork.8._ the work was done,we sat down to sum up（总结）experience.9.We played outside till sunset,_ it began to rain。,before,After,when,10.They decided to go back home _ their money ran out.11._ I get to the airport,I will phone you to pick me up.12.My father was reading newspaper _ my mother was cleaning the room.,before,As soon as,while,制作：李红,
