2024年初三英语时间状语从句知识点讲解连词主要有：when as while before after until as soon as since等。 (1)区别when, as, while的用法 ①.
when当。时候引导的时间状语从句，其动词既可以是延续性动作的动词，也可以是瞬间性动作的动词，如the students heard the teacher’s footsteps, they all stopped talking. 当学生们听到老师的脚步声时，他们都停止了讲话。
(从句动作发生在前) ②as当。时候或一边。一边引导的时间状语从句其动词的动作是延续性的，而且侧重表示主句和从句的动作并相发生：
we were h**ing breakfastshe was combing her hair. 她梳头时我们在吃早饭。 ③while表示在某一段时间里或在，期间，其所引导的从句的动作是延续性的，并侧重表示和主句的动作同时发生。
如： i can learni work. 我可以边工作边学习。
用when, as, while填空you came in, i was talking with a few boys. it started to rainwe were playing outdoors. they talkedthey walked down the riverit was raining, the students were playing basketball.
her brother watched tvhe ate supper.
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1 时间状语从句可由when，whenever，while，before，after，until，till，since，now that，once，as soon as等连词引起 lets wait until till the rain stops 等雨停了再说。she comes to talk...
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考例 could you please give me your e mail addressyou go?昆明市 a.as soon as b.before c.after d.until 答案 b 解析 这四个词 组 都可以引导时间状语从句，as soon as一 就 before在 之前 af...