Ⅲ. Write some conversations and sentences after the model. 仿写对话和句子。

Model: A: What were you doing when the rainstorm came?
B: I was doing homework.
1. A:
B:
2. A:
B:
3. A:
B:
Model: We drove home. The strong winds started.
We were driving home when the strong winds started.
While we were driving home, the strong winds started.
4. I read for fun. The power went out.


Model: My sister did homework. I did chores.
While my sister was doing homework, I was doing chores.
My sister was doing homework while I was doing choes.
5. Mary moved all the things off the floor. Her parents packed the supplies.

1. A: What were your family doing when the typhoon landed on the coast? B: They were having dinner. 2. A: What were you doing when the snowstorm hit? B: We were driving home from work. 3. A: What were your grandparents doing when the building shook all of a sudden? B: They were watching TV. 4. I was reading for fun when the power went out. While I was reading for fun, the power went out. 5. While Mary was moving all the things off the floor, her parents were packing the supplies. Mary was moving all the things off the floor while her parents were packing the supplies.

Ⅳ. Read the grammar of past continuous tense on pages 106 - 107 in the appendix of the textbook. Read the following sentences and sum up the rules. 读课本附录 106 - 107 页关于过去进行时的语法。观察下列句子并总结规律。
1. A: What were you doing at the time of the rainstorm?
B: I was playing soccer with my friends.
2. A: What was Alice doing when the typhoon hit?
B: She was doing chores at home.
3. A: What were they doing while it was raining heavily outside?
B: They were clearing the street.
小结: 过去进行时由“ / + ”构成, 表示在 某一时刻或某一时段正在进行的动作。这一特定的过去时间除非有上下文暗示, 一般用时间状语来表示。过去进行时既可以用在 中, 也可用在 中, 还可以 用在主句和从句中。

was/were + doing; 过去; 主句, 从句, 同时。