中考英语语法专项时间状语从句的时态问题(共21张)课件.pptx

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1、时间状语从句的时态,初三英语语法,English Grammar,时间状语从句的初三英语语法English Grammar,一、中考考查重点二、考查重点讲解,时间状语从句引导词时间状语从句的时态从句在句子中的功能,一、中考考查重点时间状语从句引导词,1.概述2.时态呼应3.主将从现4.since引导的时间状语从句,目录,1.概述目录, 时间状语从句的引导词有很多，常见的有。用表示时间的连词连接一个句子作状语，在句中相当于时间状语，这样的主从复合句就是时间状语从句。常由,when, as, while, before, after, as soon as, till, until, since,

2、 ever since, every time, each time, next time等引导。注意：如果主句是一般将来时，从句只能用一般现在时表示将来意义。,1.时间状语从句概述, 时间状语从句的引导词有很多，常见的有。1.时间状语从,例如：It was raining hard when we got to school yesterday.昨天我们到达学校时，雨下得很大。While he was doing his homework, the telephone rang.当他正在做作业时，电话铃响了。As he walked along the lake, he sang happi

3、ly.当他沿着湖边散步时，他高兴地唱着歌。He had learned a little Chinese before he came to China.他来中国之前学过一点汉语。After he finished middle school, he went to work in a factory.中学毕业后，他去了一家工厂工作。,时间状语从句概述,例如：时间状语从句概述,2.时态的呼应,时态呼应一般来讲，复合句都要遵循主、从句时态呼应规律，状语从句也不例外。即：主句用现在时，从句也用现在时；主句用过去时，从句也用过去的某种时态。,2.时态的呼应时态呼应一般来讲，复合句都要遵循主、从句时态

4、呼,现在时,在时间状语从句中,常用现在的某种时态时表示一般将来时, 如：Dont forget to bring your DV4000 camera here when you come. 你来的时候别忘了带DV4000摄像机。Please tell him about it when you see him back. 你看到他回来，就告诉他这件事。Dont get off the bus until it has stopped.等车停稳后才下车。You should do as I tell you. 你应当按我告诉你懂得去做.,现在时 在时间状语从句中,常用现在的某种时态时表示一般将

5、来时,现在时,主句用现在时，从句也用现在的时态。如：You must see the doctor when you are ill.如果你生病了，你必须去看医生。Be careful when you cross the road.过马路时要小心。Lets wait until the rain stops.咱们等雨停了吧。,现在时主句用现在时，从句也用现在的时态。,现在时,在时间状语从句中,常用现在时表示将来时间 如：Dont forget to bring your DV4000 camera here when you come. 你来的时候别忘了带DV4000摄像机。Please t

6、ell him about it when you see him back. 你看到他回来，就告诉他这件事。Dont get off the bus until it has stopped.等车停稳后才下车。As soon as you arrive, give me a phone call. 你一到就给我来电话.,现在时 在时间状语从句中,常用现在时表示将来时间,过去时,主句用过去时，从句也用过去的某种时态。如：When he was seven years old, he could swim.当他七岁时就会游泳。The army was disbanded when the war

7、 came to an end.战争结束时，军队即被解散Mary was reading when I left. 我走的时候玛丽正在读书.She turned off the light before she left the office.她离开办公室前就关了灯。,过去时主句用过去时，从句也用过去的某种时态。,3.主将从现,概述：主将从现是指在时间状语从句、条件状语从句和让步状语从句中，如果主句是一般将来时，从句用一般现在时替代一般将来时。就连词而言有:when, as soon as, if , whether.or not等从属连词.如： I will call you as soon

8、 as I get there.我一到那儿就给你打电话。If it doesnt rain tomorrow,well go on a picnic.如果明天不下雨，我们就去野餐。Im going whether you like it or not.不管你喜欢与否，我都要去。,3.主将从现概述：,主将从现,时间状语从句中一般不使用将来时态尽管主句使用将来时态，从句一般使用一般现在时态或现在完成时态，不能用一般将来时、过去将来时态或将来完成时，而要用相应的一般现在时态、一般过去时或现在完成时来代替。,主将从现时间状语从句中一般不使用将来时态,从句现在时态,Ill telephone you a

9、s soon as I get there.我一到达那里就打电话给你。Ill go on with the work when I come back tomorrow. 我明天回来，我将继续做这项工作。It will be two years before he leaves the country.再过两年他才会离开这个国家。By the time you come back, well have finished the job.到你回来的时候，我们将已经完成这项工作。,从句现在时态,She said she would phone me as soon as she got there

10、.她说她一到达那里就给我电话。She would let him know as soon as he came back.他一回来她就会告诉他。,从句过去时态,从句过去时态,注意,主将从现六种情况1、如果主句是将来时或表示将来含义时，那么条件和时间状语从句多用一般现在时。When I grow up, Ill be a nurse and look after patients.我长大后要当一名护士，照顾病人2、如果主句是祈使句，那么从句通常要用一般现在时。Dont laugh at me when I make a mistake.我犯错误的时候不要笑话我。,注意主将从现六种情况,注意,3

11、、如果主句是含有情态动词的一般现在时，根据需要从句多用一般现在时。如：You should be quiet when you are in the reading room.在阅览室时应保持安静。4、如果if的条件状语从句遇到变换间接和直接时，祈使句应用not to如：She said not to close the window if the weather wasnt cold.她说如果天气不冷就不要关窗户。,注意3、如果主句是含有情态动词的一般现在时，根据需要从句多用,注意,5、主将从现说的是在含有时间状语从句和条件状语从句的主从复合句中，如果主句的时态是一般将来时，那么从句要用一般

12、现在时。如：I will tell him about it when he comes.他来的时候我会告诉他的。If it is fine tomorrow, we will go outing.如果明天天气好，我们就去郊游。6、如果主句的时态是过去将来时，那么从句要用一般过去时。如：He said that he would have another try if he had the chance.例如:他说他如果他有机会再试一次。I knew he could help me if he was free the next day.我知道如果他第二天有空，他会帮助我的。,注意5、主将从

13、现说的是在含有时间状语从句和条件状语从句的主从,4.since引导的时间状语从句,在由since 引导的时间状语从句中,主句用现在完成时,从句用一般过去时。 He has worked in that company since he graduated from Wuhan University. 他从武汉大学毕业以来就一直在那个公司工作.也可用 “It is + 一段时间 + since (引导一般过去时的从句)”句型. It is two years since he came here.自从他来到这儿，有两年了。如:,4.since引导的时间状语从句 在由since 引导的时间,sin

14、ce引导的时间状语从句,例题演练：It ten years since we last in Beijing.A. was, met B. has been, met C. was, meet D. is, meet,B,since引导的时间状语从句例题演练：B,EXERCISE,Im sorry to hear that Bill failed exam again. Dont worry about him. Im sure that he will never give up until he_. A. succeed B. succeeds C. succeededCould you

15、please tell Peter that I want to talk to him?Sure. I will let him know as soon as he_ back. A. comes B. came C. has come D. will come Ask your friend to call me back as soon as she_back tomorrow. A. will come B. comes C. coming,B,A,B,EXERCISE Im sorry to hear t,Thank you！,初三英语语法,English Grammar,Thank you！初三英语语法English Gramma,