过去进行时
过去进行时： I was walking down the street when it began to rain.
When it began to rain
now
I was walking
I was walking down the street when it began to rain. I was not walking down the street when it began to rain. Were you walking down the street when it began to rain?
据说，她去年写0 了一本小说。
3. 常用于介绍故事的背景。 （一）
Once an Jack was traveling in the desert. （二）描述一件事发生的背景；一个长动作发生
的时候，另一个短动作发生（长动作用过去进行 时，短动作用一般过去时）。也可以表示两个动
作同时发生，此时均用过去进行时
• a. The children were playing when they heard the sound of a motor bike.
• b. He is strong while his brother is weak.
• 5.通常不能用于过去进行时的动词主要有： agree, be, believe, belong, care, forget, hate, have(拥有), hear, know, like, love, mean, mind, notice, own, remember, seem, suppose, understand, want, wish等。例如：
4. When/ While“当……的时候”的区别
• ①when 既指时间点，也可指段时间，
while只指段时间，因此when引导的时 间状语从句中的动词可以是短暂性动词， 也可以是延续性动词，而while从句中的
动词必须是延续性动词。
I was listening to the music when she came here.
• When I saw him he was cleaning his room.
• While he was waiting for the bus, he was reading a newspaper.
• He was cleaning his car while I was cooking.
• Were you playing basketball at 6:30 yesterday? ---Yes, I was./No, I wasn’t.
• Was he playing the piano at that moment? ---Yes, he was./No, he wasn’t.
⑷特殊疑问句： 特殊疑问词 + 一般疑问句
• What were you doing at 8:00pm yesterday? • Where was he working at that time?
• 3、标志性词语
• （1）at that time. at that moment. yesterday evening
2. 表示过去一段时间内持续进行的动作。
昨天夜里下了一夜的雪。
It was snowing last night.
比较： It was said that she was writing a novel last
year. 据说，她去年一直在写一本小说。 It was said that she wrote a novel last year.
• I wasn’t playing basketball at 6:30 yesterday. • He wasn’t playing the piano at that moment. • They weren’t doing homework at 8:00 last night.
⑶一般疑问句： Was/Were + 主语 + (doing) + 其他
I was listening to the music while she came here.
• ②when 说明从句的动作和主句的动作 可以是同时，也可以是先后发生；while 则强调主从句动作同时发生。
• They were singing while we were dancing.
• ③when和while 还可作并列连词。when 表示“在那时”；while表示“而，却”， 表对照关系。如：
• I was knowing the answer. I knew the answer.
• I wasn’t understanding him.
• （2）以when引导的谓语动词是一般过去时 的时间状语
II:用法
• 1. 表示过去某一时刻正在进行的动作。
• 今天下午5点的时候，他在打篮球。
He was playing basketball at 5 this afternoon.
当我进去的时候，她正在写一篇作文。
She was writing a composition when I entered.
• I was playing basketball at 6:30 yesterday. • He was playing the piano at that moment. • They were doing homework at 8:00 last night
(2)否定句： 主语 + was/were + not + （doing） + 其他
• 1关键词：was/were doing • 2、句子结构： • 肯定句：主语+was/were+现在分词+其他 • 否定句：
主语+was not/were not+现在分词+其他 • 疑问句：was/were+主语+现在分词+其他
Байду номын сангаас
• ⑴肯定句：主语 + was/were + (doing) + 其他.