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at nine last night.
were having
过去进行时
1. 定义：
表示过去某一具体时间正在发生的动作。
2. 时间标志：
at … yesterday morning
at that time
from nine to ten last evening
traffic lights
change to red/yellow/green
Unit 1
While the lights were changing to red,
[?pi?] 出现
a car suddenly appeared.
Who saw the accident?
2 Did the car stop just in time
3. What was the boy doing when he was
riding his bike?
4. When did a car suddenly appear round
the corner?
5Did the boy fall off his bike?
Who saw the accident?
2. Did the car stop just in time?
Ms James.
Yes, it did.
Listen and answer questions
3. What was the boy doing when he was
riding his bike?
He was listening to music.