中考英语知识点:时间状语从句
中考英语知识点:时间状语从句
(1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。例如:
It was raining hard when we got to school yesterday.
While he was doing his homework, the telephone rang.
As he walked along the lake, he sang happily.
He had learned a little Chinese before he came to China.
After he finished middle school, he went to work in a factory.
(2)在时间状语从句里,通常不用将来时态,用现在时态表示将来的动作或状态。例如:
I’ll ring you up as soon as I get to New York.
I will tell him everything when he comes back.
He won’t believe it until he sees it with his own eyes.
(3)在带有till或until引导的时间状语从句的主从复合句里,如果主句用肯定式,其含义是“一直到……时”,谓语动词只能用延续性动词。如果主句用否定式,其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。例如:
The young man read till the light went out.
Let’s wait until the rain stops.
We won’t start until Bob comes.
Don’t get off until the bus stops.
[Practice]
I didn’t know he came back I met him in the street.
A. since B. when C. until D. after
请填入适当的引导词
I haven’t heard from him _____ he went to America .
We found the books two days ____ he had gone away .
Do not leave the room _____ you have finished the test.
新初三快扫码关注
中考网微信公众号
每日推送学习技巧,学科知识点
助你迎接2020年中考!