《八年级英语上册 Module 8 Unit 1 While the lights were changing to reda car suddenly appeared课件2》由会员分享，可在线阅读，更多相关《八年级英语上册 Module 8 Unit 1 While the lights were changing to reda car suddenly appeared课件2（19页珍藏版）》请在金锄头文库上搜索。
1、1. While the lights were changing to red, a car suddenly appeared round the corner.2. When I was waiting to cross the road, the accident happened./1. While the lights were changing to red, a car suddenly appeared round the corner.2. When I was waiting to cross the road, the accident happened./Studen
2、t A: Youre a policeman at an accident scene in the street. Ask people questions.Student B, C and D: You saw the accident. Answer the policemans questions.A: What were you doing when the accident happened?B: When the accident happened, I was walking along the street.C: When the accident happened,D: 过
3、去进行时过去进行时1. 定义：定义：表示过去某一具体时间正在发生的动作。表示过去某一具体时间正在发生的动作。2. 时间标志时间标志：at yesterday morningat that timefrom nine to ten last eveningwhen, while, ase.g.We were watching TV from six to nine last night.What was he researching all day last Sunday? 3. 过去进行时还可以和过去进行时还可以和when, while, as引引导的过去时间状语从句连用，形成复合导的过去时间
4、状语从句连用，形成复合句。句。e.g. While the lights were changing to red, a car suddenly appeared round the corner. 正当交通信号灯要变成红灯的时候，正当交通信号灯要变成红灯的时候，一辆小轿车突然从拐角处驶出来。一辆小轿车突然从拐角处驶出来。One day, when Henry was working in a restaurant, a snake suddenly appeared.一天，当亨利正在餐馆里工作时，一条蛇突一天，当亨利正在餐馆里工作时，一条蛇突然钻了出来。然钻了出来。I was trying
5、 to pick it up when it bit me again.我正试图捡起（那条蛇），突然它又咬了我我正试图捡起（那条蛇），突然它又咬了我一口。一口。As the doctors were checking him, the pain got worse.医生给他做检查时，疼痛加剧了。医生给他做检查时，疼痛加剧了。when，while，as都可以引导时间状语从都可以引导时间状语从句，但用法区别非常大。句，但用法区别非常大。 一、一、when可以和延续性动词连用，也可可以和延续性动词连用，也可以和短暂性动词连用；而以和短暂性动词连用；而while和和as只能和延续性动词连用。只能和延续
6、性动词连用。 e.g. They arrived while we were having dinner. = They arrived when we were having dinner. 我们吃饭的时候他们到了。我们吃饭的时候他们到了。二、由二、由when引导的时间状语从句，如果主引导的时间状语从句，如果主句是过去进行时，从句应该用一般过句是过去进行时，从句应该用一般过去时，表示一个动作正在进行的时候去时，表示一个动作正在进行的时候另一个动作突然发生了，强调后一动另一个动作突然发生了，强调后一动作发生的突然性。作发生的突然性。 e.g. We were talking when the
7、teacher came in. 我们正在讲话，老师（突然）进我们正在讲话，老师（突然）进 来了。来了。三、当主句和从句的动作都是延续的或同三、当主句和从句的动作都是延续的或同时发生的，两句都用过去进行时的时时发生的，两句都用过去进行时的时候，多用候，多用while引导。引导。 e.g. They were singing while were dancing. 他们在唱歌，我们在跳舞。他们在唱歌，我们在跳舞。重点短语：重点短语：in time fall offpay attention side by side语法：语法：过去进行时过去进行时1. Safety comes first. We
8、 should _ to keep safe on the road. obey the traffic (交通交通) rules be careful of passing cars and buses run fast after others not read the messages on our mobile phones play basketball with our friends A. B. C. A2. I _ a meal when you _ me. A. cooked, were ringing B. was cooking, were ringing C. was
9、cooking, rang D. cooked, rangC3. They _ a football game from 7 to 9 last night. A. were watching B. watch C. watched D. are watching4. Would the driver see him _? A. on time B. in time C. for time5. The old man _ the ladder yesterday afternoon. A. fell off B. fell down C. fell of D. fell upABA6. Everyone should pay attention _ the risk of the accident. A. for B. to C. at D. underB编写一个对话编写一个对话, ,介绍你亲眼目睹的介绍你亲眼目睹的一次交通事故。一次交通事故。
