Unit 6 Understanding ideas (grammar) 课件 2026-2027学年外研版英语八年级上册

该初中英语课件聚焦过去进行时，涵盖其表意功能、句型结构、时间状语及when/while的区别。课堂通过视频填空引入Isabella的故事，再从阅读材料中提取相关句子，结合时间轴分析语法点，搭建从感知到归纳的学习支架。 其亮点在于以自然灾害为主题，通过视频、阅读、句子重排及小组故事讲述等任务，培养学生语言能力（运用过去进行时叙事）和思维品质（辨析when/while用法）。Summary部分系统梳理语法要点，帮助学生结构化知识，教师可直接利用活动设计提升教学效率。

Unit 6 When disaster strikes Understanding ideas (2) 外研版英语八年级上册 Learning objectives 通过本课时的学习，学生能够： 1. 在语境中归纳总结过去进行时的表意功能、句型结构及 时间状语。 2. 理解并掌握when和while与过去进行时连用时的区别。 3. 正确运用过去进行时讲述与自然灾害相关的故事。 重点 重点 1. —Isabella, What were you doing when all that happened? —I ___________(take) a shower. 2. When Isabella came out of the bathroom, she felt the smell of smoke and knew something ___________(go) on. was taking Watch and fill Watch the video and fill in the blanks. was going What tense is it? The past continuous tense 过去进行时 Read and find Read the reading passage and find out more sentences with the past continuous tense. That night, I was sleeping when the ground shook very hard. We moved on while the cloud was spreading over the land like a flood. My mother and I were staying in a town near Pompeii. By six o’clock the next morning, many buildings were still shaking. All around us, women were calling, children were crying and men were shouting. People were trying to find their families in the dark. ·—Isabella, What were you doing when all that happened? —I was taking a shower. · When Isabella came out of the bathroom, she felt the smell of smoke and knew something was going on. Analyze and fill Past continuous tense: to describe actions that were ____________(in progress/ completed) at a specific time in the past. past now 1. I was sleeping at 11 o’clock last night. in progress future a specific time in the past I was sleeping. 11 o’clock Past continuous tense: to describe actions that were in progress at a specific time in the past. to indicate an action that was interrupted by _____________. past now 2. I was sleeping when the ground shook very hard. another action future period of time in the past The ground shook. I was sleeping. Analyze and fill Past continuous tense: to describe actions that were in progress at a specific time in the past. to indicate an action that was interrupted by another action. to describe _____________________ at the same time in the past. past now 3. I was sleeping when my brother was watching TV. two actions happening future My brother was watching TV. I was sleeping. Analyze and fill Read and fill Read the sentences with the past continuous tense. Then fill in the blanks. My mother and I were staying in a town near Pompeii. He wasn’t reading at that time. How to form statements Positive I/He/She/It ______ sleeping/ staying … __________ were Negative _____________ wasn’t reading … We/You/They _______ was We/You/They I/He/She/It weren’t wasn’t = was not weren’t = were not present participle That night, I was sleeping when the ground shook very hard. Reorder and fill Reorder sentences with the past continuous tense. Then fill in the blanks. 1. was/ taking a shower/ she / at that time _____________________________? 2. she/ was/ Yes, ________________________. Was she taking a shower at that time Yes, she was How to form questions Was ______________ taking(…)? _____ we/you/they Short answers Yes, I/he/she/it was. we/you/they _____. No, I/he/she/it ________. we/you/they weren’t. Were I/he/she/it were wasn’t present participle Circle and fill 1. That night, I was sleeping when the ground shook very hard. 2. He wasn’t reading at that time. 3. Mary was doing her homework from 7 to 9 last night. Read the sentences and circle the time expressions in them. The time expressions that can be used with the past continuous tense a specific time or a period of time in the past: ______________________________________________________________________________________________________________________ when/while + simple past tense at that time, from ... to... last night, all morning, in those days, for hours, ... Read and fill 1. She was reading a book last night. 2. She read a book last night. Read the sentences and analyze the differences between the two tenses. Differences Past continuous tense Simple past tense The action was completed in the past The action was in progress or ongoing (unfinished) in the past Read and analyze Read the sentences and analyze the differences between when and while. I was sleeping when the ground shook very hard. the simple past tense the past continuous tense the long action the short action Rules: When a short action happened at the same time as a long action, we can use “________” with the short action. If the “when-clause” or the “while-clause” is used at the beginning of the sentence, use a comma after it. when When the ground shook very hard I was sleeping. , We moved on while/when the cloud was spreading over the land like a flood. Read and analyze Read the sentences and analyze the differences between when and while. Rule: When a short action happened at the same time as a long action, we can use both“______________” with the long action. When/While the cloud was spreading over the land like a flood, we moved on. the simple past tense the long action when/while the short action the past continuous tense Read and analyze Read the sentences and analyze the differences between when and while. the past continuous tense the past continuous tense Rule: We use “_______” to join two long actions. I was studying while my brother was playing games. the long action the long action while Compare and summarize I was sleeping when the ground shook very hard. We moved on while/when the cloud was spreading over the land like a flood. I was studying while my brother was playing games. 1. When there are two long actions, we often use________. 2. If the shorter action is in the main clause, we can use ____________ to join them. 3. If the longer action is in the main clause, we often use _______to join them. while when or while when 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 covering Read and complete Complete the passage with the correct form of the verbs in brackets. At first, it was just another normal weekday. I 1 _____________ (wait) at the railway station when I 2 __________ (hear) a notice: there was a heavy rainstorm, so all train services were stopped. While others 3 _______________ (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 4 ______________ (become) louder and angrier. Just then, a lovely piece of music 5 _______________ (start). The music of "Me and My Motherland" 6 _______________ (stop) all the noise. Many travellers 7 _______________ (sing) along with the music. One woman started to cry while she 8 __________________ (listen). That wonderful music by a student orchestra. It lifted our spirit and gave us hope. was waiting heard were calling became started stopped sang was listening Read and complete 1. What was the weather like that day? 2. What did the people do when they heard the notice about the train service being stopped? 3. What happened when the music started? 4. How did the music affect the travellers? 5. Who played the wonderful music? There was a heavy rainstorm that day. Some people were calling their families or searching for news reports. All the noise stopped. Many travellers sang along with the music, and one woman started to cry while listening. The wonderful music was played by a student orchestra. Read the passage again and answer the questions. Read and answer tornado wildfire mudslide earthquake volcanic eruption Tell a story about a natural disaster. Work in groups. Decide on one disaster and tell a story about it. Use the words and expressions from the passage and the Useful expressions to help you. Post-reading Discuss and tell Useful expressions It was a terrible... A(n)... happened in... The buildings / roads / trees / animals were... People were... The cause of... was... ... people lost their lives. ... people were influenced and... homes were broken. Tell a story about a natural disaster. A forest fire happened in Australia in 2019. It was a terrible fire. The animals were trying to get away while the trees were burning. But they were too slow. Firefighters and volunteers helped them. When the fire was spreading, they worked hard to save the animals. Some people put the animals in their homes. Some people took the animals to hospitals. After the fire, people took the animals to a safe part of the forest. Sample Tell a story The Past Continuous Tense Time expressions: at that time, from... to ...yesterday, ... 3 1 To describe actions that were in progress at a specific time in the past. To indicate an action that was interrupted by another action. To describe two actions happening at the same time in the past. Basic sentence structure: was/were +v.-ing 2 4 The different usages of when and while. Summary Homework 1. Structure your notes about past continuous tense. 2. Retell the passage in Activity 7. Bye-bye! $