Unit 5 What were you doing when the rainstorm came? Section A (4a-4c) 课件（34张PPT）+练习

课件34张PPT。 Unit 5 What were you doing when the rainstorm came? Period Three版本:新人教版 八年级下册At 4 o’clock she wasn’t at home.She _____.was playing tennis.past progressive tense: was/were + v-ingIt is 6 o’clock now.She is watching television.Lead inWhen I …He was doing …When I called him at nine, he was sleeping.While we …She was doing …While we walked to school, she was having breakfast.While I …They were doing …While I was reading the newspaper, they were watching TV.根据上面句子分组归纳总结过去进行时的构成和用法。Group work表示过去某一时刻或一段时间内正在进行的动作。常和表示过去的时间状语连用， 如： at this time yesterday/ at 9:00 last night/ from 7:00 to 10:00 yesterday morning 等。1. 过去进行时的定义&构成: 构成: was/were + v-ing，was用于主语是第一人称及第三人称单数的句子中，were用于主语是第二人称及其他复数人称的句子中。Grammar肯定句: 主语+was/were +V-ing+其他 She was eating breakfast at 6 am yesterday. 昨天早上6点她正在吃早饭。 否定句: 主语+wasn’t/weren’t +V-ing+其他 We weren’t watching TV at that time. 那时我们没在看电视。 2. 基本句型：Grammar 疑问句: Was/Were +主语+V-ing+其他? Yes, 主语+was/ were. No, 主语+wasn’t/weren’t. —Were you playing basketball at that time? 那时你们正在打篮球吗? — Yes, we were. / No, we weren’t. 是的，我们在打篮球。 / 不，我们不在打篮球。 特殊疑问句：What was/were+主语+V-ing? What were you doing at 7:00 last night? 昨晚7点你在做什么?Grammar3. 现在进行时和过去进行时的区别：表示过去某时或某段时间正在进行的动作表示说话时正在进行的动作was/were + doingam/is/are + doing1)My parents were watching TV at 8:30 yesterday evening. 2)I wasn’t doing my homework at 10:00 last night.1)I am writing a letter now. 2)Look!They are waiting for you.Grammar4.一般过去时和过去进行时的区别：He read a book last night. 昨天晚上他读了一本书。(读完了) He was reading a story book last night. 昨天晚上他正在读故事书。(还没有读完) 表示过去的时间里发生的动作，往往已经完成表示过去某一时刻或时段正在进行的动作表示过去发生的动作Grammarwhen/while用法区别1) *when: 既指时间点，也可指一段时间 while: 只表示一段时间 *when引导的时间状语从句中的动词可以是瞬间性动词，也可是延续性动词 while从句中的动词必须是延续性动词We were having dinner when the phone rang. I lived in a small village when I was a young boy. While my sister was doing the ironing, I cooked dinner.Grammar2) ①由when引导的时间状语从句常用一般过去时，主句可用过去进行时 ②强调从句和主句的动作同时发生，两句都用过去进行时，多用while引导从句He was reading in the library when the rainstorm came. When it began to rain, Ben was helping his mom make dinner. While Linda was sleeping, Jenny was helping Mary with her homework.Grammar① I was walking to school when I saw a cat in a tree. ② 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。过去进行when③ While I was sleeping in the bedroom, someone knocked at the door. ④ David fell while he was riding his bike. 主句的 ... ...