初中英语过去进行时(when-while用法)

1、v1.0可编辑可修改Summary 3Past Co nti nuous Tense过去进行时总结I. Defin itio n 时态含义表示过去某一时刻或过去一段时间内正在进行的动作。II. Time words 时间标志词1. then, at that time, this time yesterday, at 6 o clock yesterday .2. when/ while/ (just) as引导的时间状语从句III. Structure 动词结构was/ were + doing Whe n/ while/ (just) as引导的时间状语从句在过去进行时态中的用法区别1.

2、when既可以和短暂性动词连用，也可以和 连续性动词 连用,句中一般翻译为“当. 时候” / “就在那时”。a. Some one kno cked at the door whenI was hav ing breakfast.b. I was tak ing a bath whenthe teleph one rang.2. while只可以和连续性动词连用句中一般翻译成“当. 时候”(=wheri) /“然而”(强调前后两个动作同时进行)a. He cut himself while he was shaving.b. My wife was cooking the dinner whi

3、le I was working in the garden.3. (just) as更强调“随着”，所引导的从句动作一般与主句动作伴随着发生。a. Just as I was ope ning the front door, the teleph one rang.b. The children were singing as they went home.111v1.0可编辑可修改IV. Exercises 练习( )1. We were reading the newspaper suddenly the light went out.D. afterA. whenB. while C.

4、 before)2. While she TV in the sitti ng room, the bell223A.watches; ringsC. was watchi ng; rangB.is watchi ng; rangD. watched; was ringing)3. Sheherself while sheoff the bus.A.hurt; was gett ingC. hurt; is gett ingB.Hurts; was gett ingD. hurts; is gett ingbath.)4. When heA. arriving; was havingC. arrived; am havingB. arrived; was havingD. arrives; was having( )5. When I saw her on the way here, she a magazine.A. reads B. is readingC. was readingD. will read6. 昨天晚上8点你正在做什么7. 我