E.g. They were playing football at ten o‘clock yesterday morning.
My mother was cooking when I got home.
I was washing my clothes at this time yesterday.
2 过去某阶段持续进行的动作 What were you doing during the holiday？ 另外，在复合句中，若主要动作和背景动作是同时发生的，那么主从句都可用过去进行时
e.g. Jenny was reading while Danny was writing.
E.g. We were working in class. We weren’t working in class. Were you working in class？
过去进行时常与过去某一特定时间的状语连用，如last night，at that time，at noon yesterday，last Sunday 等。也有时没有时间状语，要通过上下文的暗示来确定用过去进行时。
E.g. The students all worked hard. Everyone knew what he was working for.
例：He was talked （talk） to his mum at that time.
例：1 I watching （watch） TV when he came in.
2 They were play （play） games at 5：00 p.m. yesterday.
答案：1 was watching 2 were playing
例：We were flying kites at 5：00 p.m. yesterday. （对划线部分提问）
What were you at 5：00 p.m. yesterday？
答案：What were you doing at 5：00 p.m. yesterday？
My mother is cooking （cook）when I got home.
解析：这两种时态的共同点是都表示动作正在进行，但现在进行时前提是现在，而过去进行时前提是过去，由when I got home可看出前提是过去。
I read （read） a story book yesterday evening.
解析：这两种时态的共同点是都用于表示过去发生的动作。但过去进行时强调动作正在进行，而一般过去时则表示过去某一时间所发生的动作或存在的状态，它表示的动作往往已经完成。“在”说明正在进行，而“I read a story book yesterday evening.”的意思是昨晚我读了一本故事书，言下之意已经读完了。故用过去进行时。
e.g. He said that he was drawing a cat at noon yesterday.
1 What ______ from three to four yesterday afternoon？
A have you done B had you done C did you do D were you doing
2 – I call you yesterday evening， but there was no answer.
- Oh.， I‘m sorry I _____ dinner at my friend’s home.
A home B had C was having D have had
3 My mother _____ while my father _____TV.
A cooked；was watching B was cooking；was watching
C was cooked；watched D cooked；watched
4 When I got home， my son _____ the music.
A am listening to B listened to C was listening to D was listening
5 We heard a cry when we ______ TV last night.
A were watching B would watch C watch D watched
6 She asked him whether he _____ back for lunch.
A come B was coming C came D had come
7 Could you tell me when ______？
A she is coming B she was coming C will be come D is he coming
8 The teacher ______ when I came into the classroom.
A is drawing B draws C has drawn D was drawing
9 The pizza ______ by my mother. Would you like to have some？
A makes B was making C made D was made
10 Nobody noticed what she ______ at the moment.
A will do B was doing C has done D had done
11 Was it raining hard when you _____ this morning？
A left B leaves C was leaving D would leave
答案：1 D 2 C 3 B 4 C 5 A 6 B 7 A 8 D 9 D 10 B 11 A
二 、填空1 ______ they______ （feed） the animals at 5：00 yesterday afternoon？
2 Mrs.Green _____ _____ （not wash） clothes at this time yesterday.
3 Grandpa ______ ______ （mend） his clock when I reached home.
4 As I _____ （walk） in the park， I saw some children playing games.
答案：1 were feeding 2 wasn‘t washing 3 was mending 4 was walking