Unit 6 课时3 Understanding ideas（Grammar）（课件）英语外研版八年级上册

该初中英语课件聚焦过去进行时及“when/while”用法，通过图片提问（如“人们过去某时刻正在做什么”）和学生自身经历导入，从具体场景到语法结构，搭建“感知-归纳-应用”的学习支架，帮助学生理解核心知识点。 其亮点在于以“突发事件”为话题，通过例句对比归纳语法规则，用表格清晰对比when/while差异，结合语篇填空、对话创作等活动，培养语言运用能力和逻辑思维。分层作业设计兼顾基础巩固与拓展应用，助力学生提升自主学习能力，教师可借助结构化内容高效开展语法教学。

When disaster strikes Unit 6 Understanding ideas(Grammar) 初中英语 / 外研版 / 八年级上册 能掌握过去进行时的结构及 “when”“while” 引导时间状语从句的用法，能在语境中正确运用。 01 能通过 “突发事件中人们的行为” 话题，理解语言在描述过去场景中的功能，培养跨文化语境下的语言感知。 02 能通过对比、归纳，提升逻辑思维能力；通过情景创作，发展创造性思维。能学会自主归纳语法规则，通过小组合作提升协作学习能力。 03 学习目标 Lead in 01 Presentation 02 Practice 03 Production 04 Summary 05 Language points 06 Exercises 07 Homework 08 Contents Lead in 01 Lead in Look at the picture and answer the question. What was Mr Wang doing at 2 pm yesterday? Lead in Look at the picture and answer the question. What was she doing at 5 pm yesterday? Lead in Look at the picture and answer the question. What was he doing at 6 pm yesterday? Lead in What were you doing at 2 pm yesterday? Think and answer： I + was + doing... We + were + doing... Presentation 02 Presentation Look at the sentences and answer the question. (a) That night, I was sleeping when the ground shook very hard. (b) We moved on while the cloud was spreading over the land like a flood. What’s the structure of these actions? Presentation Look at the sentences and answer the question. was sleeping was spreading shook moved 动词的一般过去式 was/were+动词的现在分词形式 表示过去某个时刻或时段正在进行的动作或存在的状态。 Presentation 过去进行时 一般来说，要表示过去某个时刻或某一时段正在进行的动作，我们常使用过去进行时。 常和过去进行时连用的时间状语有: then, at this / that time, yesterday, at..., last night等。 E.g. I was reading a book at that time. We were having a party at nine last night. You were sleeping then. They were playing basketball at 4 pm yesterday. Presentation 过去进行时的构成 1.肯定句 主语＋was / were+动词现在分词＋其它 E.g. Alice was sitting with her sister by the river. They were having a tea party in the garden. Presentation 2.否定句 主语＋was / were not +动词现在分词＋其它 E.g. I wasn’t reading a book at that time. We weren’t having a party at nine last night. 3. 一般疑问句及其回答 —Was / Were＋主语＋动词现在分词＋其它? —Yes, 主语＋was /were. / No, 主语＋was /were not. E.g. —Were you reading a book at that time? —Yes, I was. / No, I was not. —Were you having a party at nine last night? —Yes, we were. / No, we were not. Presentation 一般过去时和过去进行时的区别 这两种时态虽然都表示过去发生的事情，但是过去进行时强调过去某一时刻或时段正在进行或持续的动作;一般过去时表示过去的时间里所发生的动作，所表示的动作往往已经完成。 E.g. Laura was reading a novel at eight o’clock last night. Laura read a novel last night. Presentation Let's make sentences Can you make a negative sentence about what Tina was or wasn’t doing?” Tina was watching TV at 9 yesterday evening. Tina was‘t watching TV at 9 yesterday evening. Presentation Look at the sentences and answer the question. ① When the bell rang, we were having class. ② While we were having class, the bell rang. What’s the difference between the words? 短暂动作 持续动作 Presentation 动词类型：ring 短暂性动词，having class 是长动作 即 持续性动词，when 可接两种动词，while 只能接持续性动词 从句时态：when 引导的从句可配一般过去时 / 过去进行时，while 引导的从句多配过去进行时；主句时态需与从句呼应（如从句过去进行时，主句一般过去时）。 强调点：when 侧重 “某个时间点 / 短动作发生时，另一个动作正在进行”，while 侧重 “两个持续动作同时进行”； 区别 Practice 03 Practice Complete the sentences with the correct form of the verbs in brackets. 1. People _____________ (sleep) when the volcano erupted. 2. While they ____________ (walk) along the river, a great storm broke out. 3. While the hurricane ___________ (blow) heavily, airlines could not fly in the area. 4. The fire ___________ (spread) quickly and ________(cover) the building when I heard a voice. were sleeping were walking was blowing was spreading covered Practice ⑦Complete the passage with the correct form of the verbs in brackets. At first, it was just another normal weekday. I _________ (wait) at the railway station when I _______ (hear) a notice: there was a heavy rainstorm, so all train services were stopped. While others __________ (call) their families or searching for news reports, I got more and more worried. I had a long journey to make. As time went by, people __________ (become) louder and angrier. Just then, a lovely music __________ (start). was waiting heard were calling became started Practice The music of "Me and My Motherland" _________ (stop) all noises. Many travellers _______ (sing) along with the music. One woman started to cry while she ___________ (listen). That wonderful music was from a student orchestra. It lifted our spirits and gave us hope. stopped sang was listening Production 04 Practice Let’s make a dialogue or short passage. What were people doing when/while the storm arrived? When the storm came, I was walking my dog. While you were walking, did you find a shelter? Summary 05 Summary 一、核心结构 主语 + was/were + V-ing 二、三种句式 肯定句：I was reading. / They were playing. 否定句：He wasn’t watching TV. 一般疑问句：Were you listening? → Yes, I was. / No, I wasn’t. Summary 三、when vs while 对比 单词 动词类型 从句时态 强调点 例句 when 短暂/延续性 一般过去时/过去进行时 先后/同时 When the bell rang, we were having class. while 仅延续性 过去进行时 同时 While we were having class, the bell rang. Language points 06 Language points railway（名词） 释义：铁路、铁道 常见用法：常和 “station” 搭配组成 “railway station”（火车站） 例句：I arrived at the railway station 10 minutes before the train left. weekday（名词） 释义：工作日（周一至周五） 常见用法：可与 “on” 搭配（on weekdays：在工作日），需和 “workday” 区分（后者侧重 “单日工作时长”） 例句：We usually have more meetings on weekdays. Language points 3.service（名词） 释义：服务 常见用法：可搭配交通类名词（如 “train services”“bus services”）表示 “运营服务”，也可指 “公共服务”（public service） 例句：The city improved its public service for elderly people. 4.rainstorm（名词） 释义：暴风雨 常见用法：属于天气类名词，同类合成词有 snowstorm（雪暴）sandstorm（沙尘暴） 例句：A sudden rainstorm forced us to stay in the café for an hour. 5.search（动词 / 名词） 释义：寻找、搜索 常见用法：作动词时需加 “for” 接宾语（search for sth.）；作名词时可搭配 “a”（a search for：一次…… 的搜索） 例句：They spent the whole morning searching for the lost key. 6.airline（名词） 释义：航空公司 常见用法：可搭配 “international”“domestic” 等形容词，也可指 “航线” 例句：This airline offers direct flights to Paris. motherland（名词） 释义：祖国、家乡 常见用法：多用于抒情语境，常和 “love”“defend” 等动词搭配 例句：Many overseas Chinese feel deeply connected to their motherland. Language points Exercise 07 Exercise 1.My sister ______ her homework while my parents were watching TV. A. do B. does C. was doing D. did 2.I was walking to school ______ I saw a small dog on the road. A. when B. while C. because D. so 3.______ they were playing basketball, the teacher came to the playground. A. When B. While C. Before D. After 4.Tom ______ a shower when the telephone rang. A. take B. takes C. is taking D. was taking 5.— What ______ you ______ at 8 last night?— I was reading a storybook. A. do; do B. did; do C. were; doing D. are; doing C A B D C 6.While Lily ______ to music, her brother was playing computer games. A. listen B. listened C. was listening D. listens 7.The students ______ an English class when the fire alarm went off. A. have B. had C. are having D. were having 8.— When did you meet Lucy?— I ______ for the bus at the station when she came. A. wait B. waited C. am waiting D. was waiting 9.______ my father was driving the car, I was looking at the map. A. While B. When C. Until D. Since 10.She ______ clothes when her best friend called her. A. wash B. washes C. was washing D. washed C D D A C Exercise Homework 08 基础作业：整理课堂练习（教材填空、卡牌游戏）及课堂练习中的错题，标注错误原因（如“when/while 动词类型混淆”“was/were 主谓不一致”），并订正为正确句子。 拓展作业：结合“日常场景”（如上学路上、课间休息、晚餐时间），用 “过去进行时 + when/while” 仿写 5 个句子，要求包含 3 个 “when” 句、2 个 “while” 句）。 Homework 感 谢 观 看 $