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

该初中英语课件聚焦过去进行时，涵盖基本结构、三大用法及与一般过去时的区别。课堂导入通过Julia哥哥未接电话的图片猜测活动和Lucy、Sue的实例，从具体动作描述过渡到语法规则，搭建情境感知到规则理解的学习支架。 其亮点在于以情境任务驱动语言能力提升，如补全地震经历对话让学生在真实语境中运用语法，结合when/while辨析培养思维品质，通过句型转换和典例点拨强化学习能力。采用情境教学与系统归纳结合的方法，学生能提升语法应用和逻辑思维，教师可直接使用丰富练习与清晰小结优化教学。

UNIT 5 Nature’s Temper Section A Grammar Focus understand the structure of the past continuous tense. In this part, you will learn to use the past continuous tense properly and describe past events with past continuous tense. understand the difference between the simple past tense and the past continuous tense. ➷➷ ➷ ➷ ➷ ➷ ➷ ➷ ➷ ➷ Julia called her brother yesterday around 8 pm, but he didn’t answer. Look at the pictures and guess what was going on. He __________(sit) and _________ (watch) TV. Suddenly, there ____ (be) a fire in Mrs Brown’s apartment. was was sitting watching She ________(lie) down and ________ (bleed 流血). was bleeding Let’s watch to check your answer. 过去进行时的基本结构为：was/were+V-ing 用来表示过去某个时刻或某一时段正在进行的动作。 was lying 4a Read the sentences. Underline the verbs which show an ongoing action in the past. P45 典例 根据汉语意思“你正在做什么”关键字眼可知，用“What were you doing?”，答语中缺“正在买”，且主语是I，所以用“was buying”。 点拨 —_______ ________ you _________ when he saw you? 他看到你时你正在做什么？ —I ________ __________ bananas. 我正在买香蕉。 What were doing was buying 过去进行时的用法： Let’s learn and summarize! We were driving home from our relatives’ house when the strong winds started. It was raining hard while we were driving back. We almost got into an accident when a truck nearly hit us. Yes, but when we got home later, we found water everywhere. 表示过去某一时刻或某一段时间正在进行的动作 (at） 表示一个动作发生时，另一个过去的动作正在进行(when) 表示两个过去的动作同时进行，这时可用while连接 过去进行时多用在叙事类文本中，起到提供背景和渲染氛围的作用，制造身临其境的效果。 过去进行时常见时间状语： Let’s learn and summarize! We were driving home from our relatives’ house when the strong winds started. It was raining hard while we were driving back. We almost got into an accident when a truck nearly hit us. Yes, but when we got home later, we found water everywhere. 过去的某个时间：at 9 o'clock last night; at that time when引导的时间状语从句：when I saw it while引导的时间状语从句： while she was sleeping ... Grammar Focus 用法 时间状语 表示过去某一段时间内正在进行的动作 常用时间状语：this morning, the whole morning/afternoon, all day yesterday, all night, from 10:00 to 12:00 yesterday, in those days 等 表示过去某一时刻正在发生的动作 常用时间状语：at that time, at this time yesterday, at 3 o’clock yesterday afternoon 等 表示过去某个动作发生时，另一个动作正在进行 与 when 引导的时间状语从句连用（主句用过去进行时，从句用一般过去时） 与 while 引导的时间状语从句连用（主句用一般过去时，从句用过去进行时） 表示过去某两个延续性动作同时进行 多与 while 引导的时间状语从句连用 过去进行时的基本用法 8 Grammar Focus Miss Li was shopping at this time yesterday. 昨天这个时候李小姐正在购物。 The students were reading when the teacher came in. 老师进来时学生们正在读书。 While he was reading, the telephone rang. 他正在读书时，电话铃响了。 I was cleaning my bedroom while my mother was cooking. 我打扫卧室的时候妈妈正在做饭。 9 Grammar Focus 辨析when 与 while when 引导的从句的谓语动词既可以是短暂性动作，也可以是延续性动作 while 引导的从句的谓语动词必须是延续性动作 10 Let’s learn and summarize! 句型转化： 肯定句：主语 + was/were + doing +其他 否定句：主语 + was/were + not + doing +其他 一般疑问句：Was/Were + 主语 + doing + 其他 特殊疑问句：疑问词 + was/were + 主语 + doing +其他 这里的was/were 都是助动词哦~ 典例 点拨 When I saw Xiao Wang yesterday, he ______ an old man cross the road. A. helps B. was helping C. will help 句意为“昨天我看见肖王时，他正帮助一位老人过马路。”根据“When I saw Xiao Wang yesterday, he ... an old man cross the road.”可知，强调在过去某个时间点正在发生的动作，用过去进行时，故选 B。 B 句子转换 A. 将两个简单句合并为一句，使用when或while： 1.I was reading a book. The earthquake started. → ______ 2.They were evacuating the building. The fire spread quickly. → ______ 3.The phone rang. She was taking a shower. → ______ When the earthquake started, I was reading a book. While they were evacuating the building, the fire spread quickly.  The phone rang while she was taking a shower. B. 将下列句子改为否定句和疑问句： 1.肯定句：The children were playing outside when the storm came. 否定句：______ 一般疑问句：______ 2.肯定句：We were preparing emergency supplies at that time. 否定句：______ 特殊疑问句：What ____________ at that time? 句子转换 The children were not playing outside when the storm came. Were the children playing outside when the storm came? We were not preparing emergency supplies at that time. were you doing 典例 点拨 Lily was famous for her beautiful dances in her class. When the students were ___________ (practise) together, she only paid attention to her own dance skills. 句意为“莉莉在班上以她优美的舞蹈而闻名。当学生们一起练习时，她只专注于自己的舞蹈技巧。”空前是 were，空处应填 practise 的 -ing 形式 practising，与 were 构成过去进行时的谓语结构，故填 practising。 practising Lucy ______ (break) her arm last week. It _________ (happen) when she __________ (paint) her room. She _____ (fall) off the ladder. broke Look at the pictures and put the verbs in the correct form. Yesterday Sue ___________ (walk) along the road when she ____ (meet) James. He ________ (go) to the station to catch a train and he ___________ (carry) a bag. They ______ (stop) to talk for a few minutes. happened was painting fell was walking met was going was carrying stopped （ ）1.What ______ you ______ at 8 last night? A. are; doing B. were; doing C. did; do D. do; do （ ）2.I ______ TV when the phone rang. A. watched B. was watching C. am watching D. watch （ ）3.While my mother ______ dinner, my father ______ the news. A. cooks; watches B. was cooking; was watching C. cooked; watched D. is cooking; is watching （ ）4.They ______ in the library from 2 to 4 yesterday afternoon. A. study B. studied C. were studying D. are studying （ ）5.______ the earthquake started, people ______ out of the buildings. A. When; run B. While; were running C. When; were running D. While; run 单项选择 B B B C C （ ）6.The children ______ outside when the storm came. A. played B. were playing C. are playing D. play （ ）7.What ______ your brother ______ while you ______ your homework? A. was; doing; were doing B. did; do; were doing C. is; doing; are doing D. does; do; do （ ）8.I ______ a shower when you called me. A. took B. was taking C. take D. am taking （ ）9.At this time yesterday, we ______ a meeting. A. have B. had C. were having D. are having （ ）10.While the firefighters ______ the fire, the police ______ people. A. fight; help B. were fighting; were helping C. fought; helped D. are fighting; are helping 单项选择 B A B C B Combine each pair of sentences using when or while. 4b 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. ___________________________________________________________ 4. My parents packed the supplies. I moved our things off the floor. ___________________________________________________________ S. I slept soundly. It rained cats and dogs. ___________________________________________________________ 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. My parents were packing the supplies while I was moving our things off the floor. I was sleeping soundly while it was raining cats and dogs. 背景： 两个同学在回忆上周地震时的经历。 Xiao Mei: Can you believe it's been a week since the earthquake? Wang Lei: I know! I'll never forget that day. (1) ___________________________?（提示：询问对方当时在做什么） Xiao Mei: I was in the school library. (2) ______________________________ when all the books started falling off the shelves.（提示：描述自己正在进行的动作） Wang Lei: That must have been scary! I was luckier - I was on the sports field. (3) _________________________________.（提示：描述自己和同学们正在进行的活动） Xiao Mei: What did you do when the shaking started? Wang Lei: At first, (4) _____________________________________________. But then our teacher shouted for us to stay away from the buildings.（提示：我们一开始的反应是什么） Xiao Mei: How long did it take before you could contact your family? Wang Lei: About an hour. (5) _____________________________________________ when my phone finally had signal. （提示：我当时正在做什么，当手机有信号时） 补全对话 What were you doing when it hit?  I was looking for a history book We were having a basketball match. we didn't understand what was happening and just stood there.  I was waiting with my classmates in the playground Thanks for listening $