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

Nature's Temper Section A 4a-4d） Unit 5 英语人教版八年级下册 Learning objectives 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引导的时间状语从句， 理解其表意功能，并能区分when和while的意义。 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 通过本节课的学习，学生能够： Watch and fill 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 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 3a and find out more sentences with the past continuous tense. ·—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. We were driving home from our relatives’ house when the strong winds started. It was raining hard while we were driving back. Read and underline Read the sentences. Underline the verbs which show an ongoing action in the past. 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. 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 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 _____________. past now 2. I was sleeping when the strong winds started. another action future period of time in the past The strong winds started. 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 while it was snowing heavily. two actions happening future It was snowing heavily. I was sleeping. Read and fill Read the sentences with the past continuous tense. Then fill in the blanks. I was travelling on the train then. He wasn’t reading at that time. How to form statements Positive I/He/She/It ______ having/ travelling … __________ 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 We were having dinner at home. Reorder and fill Reorder sentences with the past continuous tense. Then fill in the blanks. 1. Were/ on the train/ you/ travelling / then _____________________________? 2. I/ was/ Yes, ________________________. Were you travelling on the train then Yes, I was How to form questions Was ______________ travelling(…)? _____ 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. We were driving home from our relatives’ house when the strong winds started. 2. He wasn’t reading at that time. 3. Mary was doing her homework from 7 to 9 last night. 4. It was raining hard while we were driving back. 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 + simple past tense while + past continuous tense at that time, from ... to... last night, all morning, in those days, for hours, ... Read and fill 1. My children and I were reading together last night. 2. My children and I read together 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. We were driving home when the strong winds started. 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 strong winds started we were driving home. , Read and analyze Read the sentences and analyze the differences between when and while. My neighbour called when/while my family were having dinner. Rule: When a short action happened at the same time as a long action, we can use both“______________” with the long action. When/While my family were having dinner, my neighbour called. 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. It was raining hard while we were driving back. the long action the long action while Compare and summarize We were driving home when the strong winds started. My neighbour called when/while my family were having dinner. It was raining hard while we were driving back. 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 Read and combine Combine each pair of sentences using when or while. 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. 5. I slept soundly. It rained cats and dogs. I was doing my homework when the typhoon landed on the coast. My parents were packing the supplies while I was moving our things off the floor. 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. I was sleeping soundly while it was raining cats and dogs. 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. Read and complete Complete the passage with was, were, when or while. were was When/While were When Think and write 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. Think and write down the interview questions. Time Interview questions Before the tornado During the tornado After the tornado How was the weather before the tornado hit? Where were your family? What were you doing when the tornado hit? Were you afraid of the tornado? How did your family members comfort each other? What was the weather like? What did they do? ... Let’s role-play 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. What were you doing when the tornado hit? My family and I were hiding in a safe room. What were you doing while you were waiting there? Oh, while I ... 1. My brother (play) computer games when the rainstorm started. 2. While we (wait) for the bus, a strong wind (blow) suddenly. 3. the tornado came, we were hiding in the safe room. 4. my mom was packing supplies, I was moving things off the floor. 5. Were they planting trees on the hill at this time yesterday. Yes, . / No, . Exercise Fill in the blanks with the correct form of the given verbs. was playing they were were waiting blew When While they weren’t Summarize 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. 1. Work with your family to make a short English dialogue (1-2 minutes) about “What to do when a typhoon comes”, record it and share it in the next class. 2. Collect 3-5 English words about natural disaster prevention, and make sentences with the Past Continuous Tense for each word. Homework 人教版八年级下册 Thank you! Unit 5 $