ID: 25271988

Unit 7 Space exploration 语法专项课件25页 过去进行时 The Past Continuous- 2025-2026学年沪教版八年级英语下册

日期:2026-03-28 科目:英语 类型:初中课件 查看:20次 大小:829605B 来源:二一课件通
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(课件网) 教学课件 沪教(牛津)英语八年级下册 Unit7语法专项——— 过去进行时 The Past Continuous 全解精讲+分层练习 学习目标 理解过去进行时的基本含义与使用场景 掌握肯定句、否定句、疑问句的完整结构 能正确使用was/were加动词-ing形式 学会区分when与while引导的时间状语从句 在填空、选择、写作中准确运用过去进行时 过去进行时基本概念 过去进行时表示在过去某一特定时间点或时间段,正在进行或发生的动作。强调动作在过去当时正在进行的状态,动作在过去没有结束,处于持续状态 常见时间标志词:at 8 o’clock yesterday,at this time last week at that moment,from 7 to 9 last night,when, while 基本构成(肯定句) 过去进行时肯定句结构: 主语 + was/were + 动词的现在分词(-ing) 单数主语用was:I/he/she/it/单数名词 复数主语用were:we/you/they/复数名词 动词必须加-ing,遵循现在分词变化规则 肯定句例句 They were doing experiments at 9 yesterday. 昨天九点他们正在做实验。 The astronaut was walking in space at that time. 那时宇航员正在太空行走。 We were listening to the teacher carefully. 我们当时正在认真听老师讲课。 否定句结构 过去进行时否定句结构: 主语 + was not/wasn’t + were not/weren’t + 动词-ing was not 缩写为 wasn’t,were not 缩写为 weren’t 在was/were后直接加not,动词形式不变 He wasn’t feeling well when he went into space.他进入太空时感觉不舒服。 They weren’t watching TV at 8 last night.昨晚八点他们没在看电视。 一般疑问句结构 一般疑问句结构: Was/Were + 主语 + 动词-ing + 其他? 单数主语用Was开头,复数主语用Were开头 回答用Yes, 主语+was/were. 或 No, 主语+wasn’t/weren’t. Were you doing your homework at 7 yesterday 昨天七点你在做作业吗? Yes, I was. / No, I wasn’t. Was the satellite travelling fast then 那颗卫星当时飞得快吗? Yes, it was. / No, it wasn’t. 特殊疑问句结构 结构:特殊疑问词 + was/were + 主语 + 动词-ing? 常用疑问词:what, when, where, who等 用来询问过去某时正在做什么 例句:What were you doing at this time yesterday 昨天这个时候你在做什么? Where was he standing when the accident happened 事故发生时他站在哪里? Who were you talking to just now 你刚才在和谁说话 动词-ing变化规则 一般动词直接加-ing:do→doing,work→working 以不发音e结尾的动词,去e加-ing:write→writing 重读闭音节单词,双写末尾字母加-ing:run→running 以ie结尾的动词,变ie为y加-ing:lie→lying 用法一:过去特定时间点 表示在过去某个具体时刻正在进行的动作 常见时间标志:at…yesterday, at that time, at…last night 例句:At 10:00 yesterday, I was reading English. 例句:He was sleeping at that moment. 用法二:过去某段时间内 表示在过去某一段时间内一直在进行的动作 常见标志:from…to…yesterday, all morning yesterday 例句:They were having a meeting from 9 to 11 yesterday. 例句:She was practicing speaking all afternoon. 用法三:when和while引导的句子 when引导一般过去时的短句 表示一个短暂动作发生时,另一个长动作正在进行 主句用过去进行时,从句用一般过去时 例句:When I arrived, he was waiting for me. while表示“当……时候” 强调两个动作同时在过去进行,主从句都使用过去进行时 while后面常接持续性动作 例句:While I was reading, he was drawing. when与while用法 ... ...

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