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 as,时间
2、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 gav
3、e 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
4、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 wont go out
5、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 par
6、ents 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 the import
7、ance of study _ they left school.A. when B. whileC. 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 thenews.,since,when,as soon as,4. The drunk man didnt leave the station _the police came
8、 yesterday. 5. I havent heard from him _ he went toAmerica . 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,
