四．过去进行时：were / was + 现在分词。

1．表示过去某一时刻或阶段正在发生的动作。

►. I was playing chess at 8 yesterday evening.

►. When I arrived, they were watching TV.

►. They were doing housework this time last week.

2．用于条件状语从句中表示过去将来进行的动作。

►. She told me to wake him up if she was sleeping.

►. I asked my friend to warn me about it as long as I was driving too fast.

3．过去某时将发生的事。可参考—2（4）

►. They told me that they were leaving for New York.

►. He was going out when I arrived.

测试精编：新概念第二册

1. My brother ________ while he ________ his bicycle and hurt himself.

A. fell / was riding                   B. feel / were riding

C. had fallen / rode                   D. had fallen / was riding

2. He ________ his leg as he ________ in a football match.

A. broke / played                    B. was breaking / was playing

C. broke / was playing                D. was breaking / played

3. -Myfather will be here tomorrow. -I thought that he ________ today.

A. was corning                     B. is coming

C. will come                       D. comes

4. Jack was going out of the shop when he collided with an old woman who ________ in.

A. come        B. was coming       C. had been coming        D. had come

5. Michike couldn't come to the telephone when Mr. Smith called her because she ________ in the lab.

A. had been working                 B. has been working

C. was working                     D. worked