Unit 4 Section B (3a-3c) Writing 课件-2025-2026学年人教版（2024）八年级英语上册

该初中英语课件围绕“蓝鲸”主题，涵盖说明文阅读与写作，核心知识点包括蓝鲸的体重、栖息地、食物等事实信息，说明文结构分析，第一人称改写技巧及濒危动物保护写作。课堂通过“Look and share”提问与“Watch and learn”视频导入，以词汇学习为基础，经文本分析、信息提取（符号圈画法）、改写练习（逐句对比填空）到写作任务，构建从输入到输出的学习支架。 其亮点在于融合语言能力、思维品质与文化意识培养，如用符号圈画法（△数字、□栖息地、★生态作用）提升信息提取效率，逐句对比改写锻炼表达转换能力，保护主题写作强化生态责任感。采用情境导入与小组合作，学生能提升说明文写作与逻辑表达能力，教师可直接利用完整支架与多样活动，高效开展读写教学。

Unit4 Amazing Plants and Animals SectionB (3a-3c) Writing 人教版（2024）八年级上册 1. learn some facts about the blue whale. 2.know how to use the first person to rewrite a passage. 3.learn the features of exposition and try to write logically. 4.realize the importance of protecting the blue whale. ocean n. 大海；海洋 except prep. 除……之外；除了 tiny adj. 极小的；微小的 The vast ocean was silent, except for the tiny sound of a distant seagull. 广阔的海洋一片寂静，除了一只遥远海鸥微弱的叫声。 live up to 达到；符合 lively adj. 精力充沛的；生机勃勃的 the Arctic Ocean 北冰洋 The lively seal must live up to the challenges of surviving in the icy Arctic Ocean. 这只活泼的海豹必须不辜负在冰冷的北冰洋中生存的挑战。 Look and share Do you know who I am? a blue whale Watch and learn It tells us many facts about the blue whale What’s the type of the article? A. It is a narration(记叙文) B. It is an exposition(说明文) C. It is an argumentation(议论文) D. It is a practical writing(应用文) Pre-writing 地位 体重和喜爱 基础介绍（范围、食物、寿命）及贡献 呼吁保护 Blue whale facts Weight Where they live Food How long they live Importance in nature It can weigh as much as 200 tons. In all oceans except the Arctic Ocean. some of the tiniest animals in the ocean. Around four tons of them a day. Up to 90 years. It plays an important role in our world. Read the text and complete the table. 3a 8分钟信息解码小组赛，使用符号圈画法（△标记数字事实、□标记栖息地范围、★标记生态作用）快速提取课文中的关键信息并填写表格 人称: 由第三人称变成第一人称 内容要点: 要点不能省略或者遗漏。 语言: 个别句子需要变化结构 weight living area food amount of food eaten hobbies Imagine you are a blue whale. Use the first person to rewrite the first paragraph. 3b What should we mainly pay attention to when rewriting the article? The blue whale is the largest and heaviest animal on earth . It can weigh as much as 200 tons . Many people like watching blue whales swim , and they think it is one of the most beautiful things to see . Blue whales live in all oceans except the Arctic Ocean . They eat a lot , but they eat some of the tiniest animals in the ocean . A blue whale can eat around four tons of these a day . Step 1 Turn para.1 into first person the largest and heaviest animal on earth . It can weigh as much as 200 tons . Many people like watching swim , and they think one of the most beautiful things to see . live in all oceans except the Arctic Ocean . eat a lot , but eat some of the tiniest animals in the ocea . can eat around four tons of these a day . I am I me I am I I I I Hello everyone! My name is Billy the Blue Whale. I am __________ _______________________________________________________ I’m heavy, but I __________________________________________ I live in _________________________________________________ I can eat ________________________________________________ 逐句对比上下句子 I am the largest and heaviest animal on earth. I can weigh as much as 200 tons. Many people like watching me swim, and they think I am one of the most beautiful things to see. I live in all oceans except the Arctic Ocean. I eat a lot, but I eat some of the tiniest animals in the ocean. I can eat around four tons of these a day. Step 2 Match the two parts. 逐句对比上下句子 I am the largest and heaviest animal on earth. I can weigh as much as 200 tons. Many people like watching me swim, and they think I am one of the most beautiful things to see. I live in all oceans except the Arctic Ocean. I eat a lot, but I eat some of the tiniest animals in the ocean. I can eat around four tons of these a day. Hello everyone! My name is Billy the Blue Whale. I am __________ _______________________________________________________ I’m heavy, but I __________________________________________ I live in _________________________________________________ I can eat ________________________________________________ Step 2 Match the two parts. 逐句对比上下句子 I am the largest and heaviest animal on earth. I can weigh as much as 200 tons. Many people like watching me swim, and they think I am one of the most beautiful things to see. I live in all oceans except the Arctic Ocean. I eat a lot, but I eat some of the tiniest animals in the ocean. I can eat around four tons of these a day. Hello everyone! My name is Billy the Blue Whale. I am __________ _______________________________________________________ I’m heavy, but I __________________________________________ I live in _________________________________________________ I can eat ________________________________________________ Step 2 Match the two parts. I’m heavy, but I __________________________________________ Many people like watching me swim, and they think I am one of the most beautiful things to see. I eat a lot, but I eat some of the tiniest animals in the ocean. I can eat around four tons of these a day. I can eat ________________________________________________ 信息提取与整合 Step 3 Make some changes like/love doing sth, and … I can eat around four tons of these a day. （只要基于 “蓝鲸游泳 / 活动” 合理发挥即可） I’m heavy, but I __________________________________________ Many people like watching me swim, and they think I am one of the most beautiful things to see. I eat a lot, but I eat some of the tiniest animals in the ocean. I can eat around four tons of these a day. I can eat ________________________________________________ 信息提取与整合 love swimming in the oceans, and people think I am one of the most beautiful things to see. I can eat around four tons of the tiniest animals in the ocean a day. Step 3 Make some changes Hello everyone! My name is Billy the Blue Whale. I am ____________________________ _________________________________________________________________________ I’m heavy, but I love ________________________________________________________ _________________________________________________________________________. I live in __________________________________________________________________. My favourite food is _________________________________________________________ I can eat __________________________________________________________________. the largest and heaviest animal on earth. My weight is as much as 200 tons. swimming in the ocean. Many people like watching me swim, and they think I am one of the most beautiful things to see all oceans except the Arctic Ocean. some of the tiniest animals in the ocean. around four tons of them a day. The blue whale is the largest and heaviest animal on earth. It can weigh as much as 200 tons. Many people like watching blue whales swim, and they think it is one of the most beautiful things to see. Blue whales live in all oceans except the Arctic Ocean. They eat a lot, but they eat some of the tiniest animals in the ocean. A blue whale can eat around four tons of these a day. Blue whales can live up to 90 years. When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. This food lasts for over a year and it helps to create a lively and healthy ecosystem. Blue whales play an important role in our world, so we must protect them. 在地球上 多达，达到…… 之多 /ˈəʊʃn/ n. 大海；海洋 /ɪkˈsept/ prep. 除……之外；除了 tiny /ˈtaɪni/ adj. 极小的；微小的 live up to 达到；符合 lively /ˈlaɪvli/ adj. 精力充沛的；生机勃勃的 扮演一个重要的角色 Read and learn 1. Blue whales can live up to 90 years. 蓝鲸的寿命可达 90 年 。 live up to 达到；符合（期望等）；活到（某一年龄、岁数等） 例如： He always lives up to his parents' expectations. 他总是不辜负父母的期望。 【拓展】同义词 reach 达到（某一数量、程度、年龄等 ）；在表示活到某一年龄时，可与 “live up to” 替换。 Some trees can reach a height of 30 meters. 有些树能长到 30 米高 。 Some people can reach 90 years old. 有些人能活到 90 岁 。 Language points 2. When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. 当一头蓝鲸在海洋中死去时，它会成为生活在海洋里及海洋周边的多种动物的食物。 living in and around the sea 整体是现在分词短语作后置定语，修饰前面的 animals。相当于一个定语从句 which/that live in and around the sea。 例如： The boy standing there is my brother. 站在那儿的男孩是我弟弟 standing there修饰 the boy，可转换为 The boy who/that is standing there is my brother. Language points 新课程学习辅导 万阅文 化 返回目录 P59 (二)书面表达 假设你市某报刊开设了一个英文专栏,准备举行以“Save Endangered Animals”为主题的征文活动,请你写一篇短文投稿。 内容包括: (1)某种濒危野生动物的名称,这种动物生活在哪里,以什么为食以及处于濒危处境的原因; (2)我们可以采取什么措施保护这种动物; (3)呼吁人们一起来保护濒危野生动物。 作文要求:语句连贯,词数70左右。 (1)审题定调 文体:　　　　　　 时态:　　 　 　   人称:　　 　 　   (2)思路构建 说明文 一般现在时 第三人称 Humans catch ... for their meat, fat, fur and oil environmental pollution 环境污染 ocean pollution/ water pollution, air pollution terrible weather global warming全球变暖 the Earth is getting warmer cause the number of ... to go down cause them to lose their homes lose their homes and find it hard to get food To protect them, we should try our best. First, the government should make laws to protect.... Second, we should also live a low-carbon life to fight climate change.Third, we should ...Fourth, ... Everyone should play a part in protecting... Let’s act now—every small step counts! /Let's work together to protect... /Let's take action now to protect.... 万阅文 化 返回目录 Whales are very large animals.They live in the sea and they eat a lot of small fish and other sea animals.They can jump high out of the water. However, whales are endangered now. Humans catch whales for their meat, fat and oil. Other problems such as ocean pollution and terrible weather also cause the number of whales to go down. To protect them, the government should make strict rules to stop people killing them and polluting the sea. Saving endangered animals means saving our planet. Everyone should play a part in protecting whales and other endangered wild animals.Let’s act now—every small step counts! Save Endangered Animals 万阅文 化 返回目录 Giant pandas are lovely black and white animals. They are one of the most beloved endangered animals. They live in the bamboo forests of China and eat bamboo as their main food. However, pandas are endangered. The main reason is that their forest home is getting smaller. When people cut down forests, pandas lose their place to live and find food. Also, bamboo can become scarce, which makes their survival harder.Third,their birth rate is low. To protect pandas, we need to protect their homes. First, the government has built many nature reserves where pandas can live safely. Second, we should also plant more trees and support these protection projects. Third, everyone can help by learning about pandas and telling others why they are important. Let's work together to protect these lovely animals! They are a precious treasure not only for China but also for the whole world. Save Endangered Animals 生存 保护区 缺乏 万阅文 化 返回目录 Save Endangered Animals Polar bears are very large animals. They live in the Arctic and they eat seals and fish. They can swim well in the cold ocean. However, polar bears are endangered now. Humans hunt them for their fur and meat. Other problems such as environmental pollution and global warming also cause them to lose their homes. To protect them, the government should make rules to stop people from killing them and polluting. Everyone should play a part in living a low-carbon life to fight climate change. Let's take action now to protect these amazing animals and our planet! 万阅文 化 返回目录 Polar bears are large white animals. They live in the very cold Arctic. Their home is made of ice, and they eat seals. They are good at swimming. But now, polar bears are in danger. The biggest problem is that the Earth is getting warmer. This makes the ice melt, so polar bears lose their homes and find it hard to get food. Also, water pollution makes them sick. To help them, the government should make strong rules to keep the air and water clean. We can also help by saving electricity and using less plastic. Everyone should do their part. Let's work together to protect polar bears and all other endangered animals. A small action from you can make a big difference for them! Save Endangered Animals Must-do 必做 1.Finish and polish your composition and submit it in next class. Choose to do 选做 1. Search more information on the Internet about blue whales and think about ways we can do to protect them. Homework Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 Blues 58656.0 $