Unit 5 Nature’s Temper Section A 4a-4d 课件 2025-2026学年人教版英语八年级下册

Unit 5 Nature’s Temper Section A 4a-4d 学习目标 By the end of this lesson, students will be able to: Correctly use the past continuous tense to describe actions that were happening at a specific time in the past. Use when and while to connect two simultaneous actions and choose the appropriate conjunction according to the context. Complete the grammar exercises in textbook sections 4a–4c, and accurately apply the target grammar in real-life contexts. Lead in Read the sentences. 4a What were you doing while it was snowing heavily? I was travelling on the train then. What were your family doing when the typhoon hit? My children and I were reading together. When my neighbour called, my family were having dinner. We were driving home when the strong winds started. While we were driving home, the strong winds started. It was raining hard while we were driving back. Read the sentences. Circle the verb forms in the sentences led by "when" and "while". 4a What were you doing while it was snowing heavily? I was travelling on the train then. What were your family doing when the typhoon hit? My children and I were reading together. When my neighbour called, my family were having dinner. We were driving home when the strong winds started. While we were driving home, the strong winds started. It was raining hard while we were driving back. when 后面可接一般过去时（短暂动作），也可接过去进行时（延续） 含义：就在这时、当…时候 侧重：一个动作突然发生 When VS While while 后面只能接过去进行时（延续动作） 含义：在……期间、一边……一边 侧重：两个动作同时进行 技巧 后面是短暂动词（come/arrive/stop/see）→ 只能用 when 后面是延续动词（read/wait/study/work）→ when / while 都可以 口诀 when 接瞬间动作，while 接延续动作； when 可长可短，while 只接长动作。 构成 肯定：was / were + 现在分词(doing) 单数(I/he/she/it) → was doing 复数(we/you/they) → were doing 否定：was/were + not + doing 一般疑问：Was/Were + 主语 + doing…? 过去进行时 二、用法 去某一时刻正在做某事 侧重过去具体时间点正在进行 I was doing my homework at 8 last night. 昨晚八点我正在写作业。 某段时间内一直在做They were watching TV all evening yesterday. 二、用法 3. 一个长动作进行时，突然发生短动作（when） He was walking in the street when it began to rain. 他正走在街上，突然下起雨。   4. 两个过去动作同时进行（while） While I was reading, my mom was cooking. 我看书的时候，妈妈在做饭。 三、时间标志词 at that time / at 8:00 last night / then / at this time yesterday / all day yesterday / when / while 四、动词变化规则（doing） 直接+ing：work→working 不发音e结尾去e+ing：write→writing 重读闭音节双写尾字母+ing：sit→sitting, ie结尾变y+ing：lie→lying 五、和一般过去时区别 过去进行时：强调当时正在做，过程 01 一般过去时：强调做完了，整件事 I read a book yesterday.（昨天读了，读完了） 02 1. I did my homework. The typhoon landed on the coast. 2. The power went out. My father and I made dinner. 3. Kate wrote a letter. Her brother called to warn her of the storm. Combine each pair of sentences using when or while. 4b I was doing my homework when the typhoon landed on the coast. The power went out while my father and I were making dinner. Kate was writing a letter when her brother called to warn her of the storm. Combine each pair of sentences using when or while. 4b 4. My parents packed the supplies. I moved our things off the floor. 5. I slept soundly. It rained cats and dogs. When I slept soundly, it was raining cats and dogs.  While my parents were packing the supplies, I was moving our things off the floor. Complete the passage with was, were, when, or while. 4c When Jenny looked up, thick black clouds were forming in the sky, and the rain _____ beating against their roof. “Quick, this way,” said Dad. The family ran to the safe room at once. ______ they were waiting, Jenny’s little sister started to cry. Dad gave her some chocolate and told her that they _____ hiding from an angry lion. Soon, she was laughing again. At last, the storm passed. _____ they stepped outside, they found the sun shining. People were asking one another if they were safe while some ______ starting to clear the streets. Jenny smiled. The tornado was scary, but it also brought everyone closer together. was were While When  were 4d Imagine that you are a reporter. Interview a member of Jenny’s family and find out what he or she was doing around the time of the tornado. A: What were you doing when the tornado hit? B: My family and I were hiding in a safe room. A: What were you doing while you were waiting there? B: Oh, while I… Assessment Content Body language Structure Language Summary 必做：用思维导图将本单元的语法重点进行归纳。 选做：写一篇短文（50词左右），描述昨天某个时间段你和你家人在做什么。 Homework THANK YOU $