Module8 Unit3 Language in use 课件-2022-2023学年八年级外研版英语上册

Module 8 Accidents Unit 3 Language in use To use the past continuous with some adverbial correctly 2. To extract specific information while listening and reading 3. To write about an accident Objectives： 过去进行时 1. 定义： 表示过去某一具体时间正在发生的动作。 2. 时间标志： at … yesterday morning at that time from nine to ten last evening when, while, as Grammer 3. 过去进行时还可以和when, while, as引导的过去时间状语从句连用，形成复合句。 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，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，一条蛇突然钻了出来。 I was trying 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。 when，while，as都可以引导时间状语从句，但用法区别非常大。 一、when可以和延续性动词连用，也可以和短暂性动词连用；而while和as只能和延续性动词连用。 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。 二、由when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，强调后一动作发生的突然性。 e.g. We were talking when the teacher came in. 我们正在讲话，老师（突然）进 来了。 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候，多用while引导。 e.g. They were singing while were dancing. 他们在唱歌，我们在跳舞。 1. While the lights ______________ to red, a car suddenly appeared round the corner. 2. When Henry ___________ to find the snake, his hand began to hurt badly. 3. I ___________ to pick it up when it bit me again. were changing was trying was trying Language practice 用适当的单词补全句子。 1.Complete the sentences with when or while. 1. He was listening to music ___________ he was riding his bike. 2. I was waiting at the lights ______ I saw the boy fall off his bike. 3. I was walking in the street ______ an accident happened. 4. The driver was talking on his mobile phone ____________ he was driving. while when when while 2.Look