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1、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 a
2、s,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
3、 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
4、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：notuntil. 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 w
5、ont 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
6、.,1. My parents were watching TV while I _ on the Internet. A. search B. was searching C. searched D. searching,2. Ill phone you _ Mary comes home. A. since B. until C. as soon as D. while 3. Please turn off th light_you leave the classroom. A. after B. before C. until D. since,4. They didnt realise
7、 the importance of study _ they left school. A. when B. while C. after D. until,1. We have lived in this city _ I moved here in 1990. 2. Have you decided what you want to be _ you grow up? 3. Dont worry, Ill phone you _ I get the news.,since,when,as soon as,4. The drunk man didnt leave the station _
8、 the police came yesterday. 5. I havent heard from him _ he went to America . 6. I waited _ he came back.,until,since,i,until,7. She likes everything to be in place _ she starts to work. 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,
