初中时间状语从句磨课教案

时间状语从句

导入：什么是状语

We are having class

主语谓语宾语

We are having class actively in the classroom now

主语谓语宾语方式状语地点状语时间状语

状语：修饰谓语（动词），形容词及整个句子的成分，表示，时间，地点，方式，程度……

When/while/as 引导的状语从句当……时候

When 当什么时候，从句既可以用延续性动词，也可用短暂性动词，和主句动作同时或先后发生。

The light went off when we were having class

I was watching TV when he came in room

While 当什么时候，从句只能用延续性动词

The weather was fine while/when we were in holiday

强调主从句同时发生：

They were singing while we were dancing

As ，当什么时候，“随着”“一边一边”

As you grow older，you will know more about yourself

We sang as we walk

Before /after

You should not eat snack before you go to bed

You will work harder after you make such progress

Till/ until 直到……肯定句中：直到……(主句是持续性动词）

否定句中：直到……才（主句是短暂性动词）I will stay at home until my mom comes back

I didn’t know nothing till you told me that