中考复习知识点之时间状语从句


  • 中考复习知识点之时间状语从句

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    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 (rain hard下大雨)when I got to school yesterday.
    While he was doing his homework,the telephone rang.
    As she walked along(沿着走)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 NewYork.
    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 (熄灭) .
    Let's wait until the rain stops.
    We won't start until Bob comes.
    Don 't get off(从下来) until the bus stops.
    【till是指直到某一特定事件发生的时候,而在那个时刻之后,该事情或状况仍将持续 。Until是指直到某一特定事件发生的时候,而讲话的人在自己心里认为,在那个时刻之后,该事情或该状况将中止(不怎么可能持续) 。固定组合里 from moming till night中, till/until是不能替换的.】
    【中考复习知识点之时间状语从句】

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