module 3 music (grammar) book2
learning paper3
learning aims:
1.to master the use of adverbial clause of time( 时间状语从句)
2.the usage of the past perfect tense(过去完成时用法)
important and difficult points:
1.the difference between “when, while, as”(引导时间状语从句异同)
2. it is/was …that(who)… 强调句式用法
一. 时间状语从句
时间状语从句主要用于说明主句动作的时间。其引导连词主要有when, while, as, after, before, until, as soon as 等。
1. 通过观察以下例句,总结when, while, as引导时间状语从句的异同。
he came in when / while/ as we were talking.
i was about to tell her the secret when someone patted me on the shoulder.
while i was reading last night, she was watching tv.
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