英语人教版八年级下册Unit 5 Section A 第三课时

Unit 5 What were you doing when the rainstorm came?1 语言目标：能运用过去进行时时态描述发生的事情2 技能目标：能听懂有关过去发生的事件，能简单描写过去发生的事件 3 情感目标：能过学习本课，培养学生在困境中互帮互助的品质教学重点：the four skills of the new words and phrases教学难点: when, while引导的时间状语从句中的过去时和过去进行时Step 1 RevisionLook at the pictures and make up the sentences.Step 2 Grammar Focus读下列句子，能否总结出句子中包含的语法？1. What were you doing at eight last night?I was taking a shower.2. What was she doing at the time of the rainstorm?She was doing her homework.3. What was he doing when the rainstorm came?He was reading in the library when the rainstorm came.4. What was Ben doing when it began to rain heavily?When it began to rain, Ben was helping his mom make dinner.5. What was Jenny doing while Linda was sleeping?While Linda was sleeping, Jenny was helping Mary with her homework. Step 3 过去进行时1. 基本概念：过去进行时表示在过去某一时刻或一段时间内正在进行的动作。这一特定的过去时间除有上下文暗示以外, 一般用时间状语来表示。2. 结构 was / were ( not ) + 动词-ingStep 4 过去进行时中的when和whilewhen和while都可表示“当的时候”，引导时间状语从句。你知道两者在过去进行时中的用法有什么不同吗？请仔细观察下面的例句，然后补全空格中的内容。 I was walking to school when I saw a cat in a tree. When Sally arrived home, her mother was cleaning the house.主句的动作是持续性的，而从句动作是短暂性的，此时用_引导时间状语从句，主句用_时态，从句用一般过去时态。 While I was sleeping in the bedroom, someone knocked at the door. David fell while he was riding his bike.主句的动作是短暂性的，从句的动作是持续性的，此时用_引导从句，主句用_时态，从句用过去进行时态。 While Andy was waiting for the bus, he was reading a newspaper. He was cleaning his car while I was cooking.主句和从句的动作在过去的某时刻或某段时间同时发生，而且动作都是持续性的，此时用_引导从句，而且主句和从句都用_时态。Practice: 汉译英。Step 5 活学活用4a. Look at the table and write sentences with both while and when.4b. Fill in the blanks with was, were, when or while.At 7:00 a.m., I woke up. _ I _ making my breakfast, my brother_ listening to the radio. _ I was eating, the radio news talked about a car accident near our home. My brother and I went out right away to have a look. _ we got to the place of the accident, the car _ in bad shape from hitting a tree. But luck