Unit 7 Grammar课件 2025-2026学年沪教版八年级英语下册

该初中英语课件聚焦8B Unit 7 Space exploration中的过去进行时，系统讲解其结构及用法。课堂导入先通过“宇航员正在太空做什么”复习现在进行时，再以“那时宇航员在做什么”自然过渡到过去进行时，搭建从现在到过去的时态学习支架。 其亮点在于结合太空探索主题，通过卫星相撞事件语篇填空、宇航员生活讨论等真实情境培养文化意识，对比when/while用法提升思维品质。多样练习（中译英、填空、语篇）助力语言能力发展，教师可高效开展语法教学，学生能提升时态运用及主题表达能力。

8B Unit 7 Space exploration Grammar：The past continuous tense (过去进行时) COMPANY Objectives By the end of the class, you are expected to: master the structure of the past continuous tense; use the past continuous tense to talk about astronauts’ life in space correctly; Revision What are the astronauts doing in space? They are sleeping in space. They are doing exercise in space. She/He is walking in space. COMPANY Warming-up What were the astronauts doing at that moment? They were waiting for instructions from ground control. They were travelling so fast. It only took about 10… COMPANY The structure of the past continuous tense They were waiting for instructions from ground control. (2) They were travelling so fast. It only took about 10… How to change them into negative sentences? They weren’t waiting for instructions from ground control. (2) They weren’t travelling so fast. 主语+was/were doing+其它 主语+wasn’t/weren’t doing+其它 COMPANY (1) ---Were they waiting for instructions from ground control? ---Yes, they were. 一般疑问句：Was/Were +主语+doing+其它? 肯定回答：Yes, 主语+was/were 否定回答：No, 主语+wasn’t/weren’t COMPANY (1) ---What were they doing at that time? ---They were waiting for instructions from ground control. 特殊疑问句：特殊疑问词+was/were +主语+doing+其它? 回答：主语+was/were doing+其它. COMPANY Practice: (1) 昨天的这个时候她在弹钢琴。 She was playing the piano at this time yesterday. (2)昨晚八点钟他们在做作业。 They were doing their homework at 8 o’clock last night. (3) 昨晚七点到八点我一直在看关于太空的新闻。 I was reading space news from 7 to 8 last night. COMPANY When to use the past continuous tense 一、过去的某个时间点正在做某事 (1)常用的时间状语： at that time/moment (在那时); (at) this time yesterday (last night/ Sunday/...) (...的这个时候)；at+钟点+last night(yesterday/ Sunday/ Friday...) (...的几点) COMPANY Exercise 1. I___________ ___________ (do) my homework at that time. 2. At 6 o’clock last night, She _______ ________ (cook). 3. We ______ _________ (have) dinner at this time yesterday. 4. My mother _______ _________(take) a walk at that time. 5. I ______ ________ (read) at this time last Sunday. was doing was cooking were having was taking was reading COMPANY 二、过去的某段时间所做的事 常用时间状语：the whole morning, all day yesterday, the whole afternoon last Saturday, from 7 p.m. to 9 p.m. last night 例1：They_____________(watch) a football game from p.m. to 9 p.m. last night. 例2：I ______________(prepare) for the English test the whole evening. were watching was preparing COMPANY When &While 例1：停电时我们正在看一部电影。 We were watching a movie when the power went out. The power went out when we were watching a movie. (停电是瞬间动词，看电影具有持续性) 例2：我在散步时遇到了我最好的朋友。 I met my best friend while I was taking a walk. (散步具有持续性) 例3：当我正在做作业的时候，我妈妈正在做饭。 I was doing my homework while my mother was cooking. When 既可接短暂性动词的过去时，也可跟持续性动词的进行时 While 通常接持续性动词的进行时，且连接两个同时在进行的动作 COMPANY 1. ①主语+was/were doing +when+一般过去时的句子 ②一般过去时的句子+when+ 主语+was/were doing I was reading a book when the bell rang. The bell rang when I was reading. ① 一般过去时的句子+while+ 主语+was/were doing ②过去进行时的句子+while+主语+was/were doing The bell rang while I was reading. My mum was doing housework while I was reading. when ＋瞬间性动词/持续性动词 while+持续性动词 两个动作同时进行，用while Summary crashed created belonged were travelling were tracking were moving Discussion: (1) What happened in space on 11 February 2009? (2) What were the two satellites doing before the crash? (3) What things were space agencies tracking before the crash? What didn’t they notice? $