U4 Amazing Plants and Animals （Section B 3a -3c) 课件2025-2026学年人教版英语八年级上册

该初中英语课件围绕“介绍蓝鲸”的说明文写作展开，通过猜谜游戏、自由讨论等导入活动激活学生已知，引导学生阅读梳理文本结构，经人称转换练习搭建写作支架，最终完成第一人称动物介绍写作任务，形成从输入到输出的完整学习脉络。 其亮点在于以任务链驱动语言能力与思维品质发展，如分析说明文结构培养逻辑思维，改写练习提升语言表达准确性，融入生态保护主题增强文化意识。视频资源与自评互评环节丰富教学形式，助力学生掌握写作方法，教师可依托系统流程高效开展教学。

Amazing Plants and Animals Unit 4 Section B 3a-3c 01 02 03 能够基于写作需求，在阅读 3a 信息、分析 3b 表述后，梳理 “介绍蓝鲸” 类文本的结构，结合 3c 呈现的内容，列出自己文本中对应 “基本特征 — 生活习性 — 生态意义” 的内容要点​。（学习理解） 能够将本单元所学与蓝鲸、海洋生物相关的词汇、描述事物的句型（如...is the largest...、...live in... 等）迁移应用到自己介绍蓝鲸的文本写作中。（应用实践） 通过本课时学习，我们能够： Learning objectives 通过自评和互评，改进写作初稿，优化语篇结构（让信息呈现顺序更合理）、明确内容细节（清晰描述蓝鲸的各方面特点）、打磨语言表达（修正句型、选用恰当词汇），提升介绍类文本的写作质量。（迁移创新） TeacherWu英语工作室 原创设计 小红书：TeacherWu英语工作室 抖音：TeacherWu英语工作室 微信：TeacherWu678 2 Guessing-game I am a mammal I am the biggest of all living animals I just eat the smallest creatures in the ocean I also eat krill I like krill the best I have no teeth Lead-in TeacherWu英语工作室 原创设计 小红书：TeacherWu英语工作室 抖音：TeacherWu英语工作室 微信：TeacherWu678 endangered species What do you know about the blue whale? Lead-in Free talk marine mammal Place: deep ocean Food: krill(磷虾) the biggest animal 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 4 How much do they weigh? Where do they live? What do they eat? How long do they live? How often do they have babies? How do they communicate with each other? ... What else do you want to know about blue whales?Can you raise some questions? Free talk Lead-in Pre-reading Learn something about blue whale Read the text about the blue whale. The Blue Whale 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. Read aloud together 3a While-reading Blue whale facts Weight Where they live Food How long they live Importance in nature as much as 200 tons in all oceans except the Arctic Ocean some of the tiniest animals in the ocean up to 90 years play an important role; When a blue whale dies, it becomes food for many animals and it helps to create a lively and healthy ecosystem. Read and complete 3a Read the text and complete the table. While-reading Read again and answer the questions Q2:how much food can a blue whale eat in a day? Around four tons. Q1:Why do people like blue whales Q3:What happens when a blue whale dies？ It becomes food for animals living in and around the sea and helps to create a lively and healthy ecosystem. Because many people like watching blue whales swim, and they think it is one of the most beautiful things to see. While-reading 文本变视频 TeacherWu英语工作室 原创设计 小红书：TeacherWu英语工作室 抖音：TeacherWu英语工作室 微信：TeacherWu678 The blue whale is ____________________________ on earth. It can ________________________ 200 tons. Many people like watching blue whales swim, and they think it is __________________________________. Blue whales live ________________________ the Arctic Ocean. They eat a lot, but they eat ___________________________________. A blue whale can eat around four tons of these a day. Blue whales can_____________ 90 years. When a blue whale dies ______, it becomes food for many kinds of ______________________________. This food lasts for over a year and it ________________________________________. Blue whales ________________________ in our world, so we must protect them. Retell the text by filling the blanks the largest and heaviest animal weigh as much as one of the most beautiful things to see in all oceans except some of the tiniest animals in the ocean at sea animals living in and around the sea helps to create a lively and healthy ecosystem play an important role live up to Post-reading The blue whale is the largest and heaviest animal on earth. It can weigh ... Checklist Complete ☆☆☆ Correct ☆☆☆ Coherent ☆☆☆ Blue whale facts Weight Where they live Food How long they live Importance in nature as much as 200 tons in all oceans except the Arctic Ocean the tiniest ocean animals; four tons a day provide a lot of food after they die; play an important role in our world can live up to 90 years Retell the text based on the table. Post-reading 12 It tells us many facts about the blue whale A. narration(记叙文) B. exposition(说明文) C. argumentation(议论文) D. practical writing(应用文) Analyze the text type What’s the type of the article? Post-reading 13 Protection call Ecological role Basic facts Analyze the structure looks habitat food lifespan popularity weight Post-reading Imagine you are a blue whale. Use the first person to rewrite the first paragraph. 3b 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 __________________________. My weight is as much as swimming most beautiful things to see all oceans except the Arctic Ocean some of the tiniest around four tons of them a day animal on earth. the largest and heaviest 200 tons. in the ocean. Many people like watching me swim, and they think I am one of the animals in the ocean. 人称由第三人称变成第一人称 Post-writing Rewrite the first paragraph What should we mainly pay attention to when rewriting an article? 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 preference(喜好) Observe and think Post-writing 16 3c Complete your passage about the blue whale based on the text in 3a. 话题分析 要求完成段落的改写，主要改写内容为3a 第二段的内容，涉及到蓝鲸的寿命和对生态环境的重要性等内容。 文本体裁 人称时态 本文将第三人称的段落内容，改写为第一人称的段落内容。分析原文章属于介绍类文章，改写后，还是自身特性介绍，因此是说明文。 写作指导 以第一人称为主；以一般现在时为主。 Post-writing Rewrite the second paragraph 17 How to use the first person to rewrite the second paragraph? points: lifespan role /function importance Post-writing Rewrite the second paragraph 18 __________________ __________________ __________________ __________________ __________________ ① We can live up to 90 years. ① Blue whales can live up to 90 years. ② When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. ③ This food lasts for over a year and it helps to create a lively and healthy ecosystem. ④ Blue whales play an important role in our world, so we must protect them. 人称由第三人称变成第一人称 Post-writing Rewrite the second paragraph 19 __________________ __________________ __________________ __________________ __________________ ② When I die at sea, I become food for many kinds of animals living in and around the sea. ① Blue whales can live up to 90 years. ② When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. ③ This food lasts for over a year and it helps to create a lively and healthy ecosystem. ④ Blue whales play an important role in our world, so we must protect them. 人称由第三人称变成第一人称 Post-writing Rewrite the second paragraph __________________ __________________ __________________ __________________ __________________ ④ We play an important role in the world, so people must protect us. ① Blue whales can live up to 90 years. ② When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. ③ This food lasts for over a year and it helps to create a lively and healthy ecosystem. ④ Blue whales play an important role in our world, so we must protect them. Rewrite the second paragraph 人称由第三人称变成第一人称 Post-writing 21 I can live up to 90 years. When I die at sea, I become 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. I play an important role in our world, so you must protect us. Would you like to do that? Thank you, my human friends! ... add interactive sentences Post-writing Sample writing 22 某英文报社正在征集以保护动植物为题材的文章。请选择一种你熟悉或喜爱的动物（例如：熊猫、蜜蜂、青蛙、海豚、竹子、猎豹等），以第一人称（“I”）的角度，写一篇自我介绍，向该报社投稿。 要点: 1. 你的基本信息（身份，栖息地与饮食等） 2. 你在自然界的角色或你对生态系统的作用 （例如：传播种子、控制害虫、成为食物链的一环等） 3. 呼吁人类关心和保护你以及你的家园 要求: 1. 文中不能出现真实校名和姓名; 2. 词数不少于***，开头已给出，不计入总词数。 Hello, everyone! I'm a _________ and let me introduce myself to you.__________________________________________________ _________________________________________________________ 单元写作任务 Post-writing TeacherWu英语工作室 原创设计 小红书：TeacherWu英语工作室 抖音：TeacherWu英语工作室 微信：TeacherWu678 Checklist Activity: Write a passage 互评 师评 Content & Structure self introduction the importance of blue whales and present situation ask for help and protection Language Use the simple present tense correctly. Use the first person to write. Use superlative sentences correctly to describe some facts and features of animals Handwriting Clear & beautiful. Excellent Good Try harder Checklist Post-writing One possible version Post-writing Sample writing Beginning Hello, everyone! I’m a patch of moss and let me introduce myself to you. I may be small and often overlooked, but I’ve been around for millions of years. I don’t have roots like plants—instead, I absorb water and nutrients directly through my leaves. You can find me in damp, shady places: on rocks, tree trunks, and forest floors. I survive on sunlight, moisture, and minerals from the air and rain. Body Though I’m tiny, I play a big role in nature. I help prevent soil erosion by holding the earth together with my tiny threads. I also store water like a sponge, which helps other plants during dry times. Many insects and small creatures find shelter in my soft green layers. I even help clean the air by absorbing pollutants. Ending Sadly, pollution and habitat destruction are making it harder for me to thrive. When forests are cut down or wetlands disappear, my home goes with them. I urge you to protect green spaces and reduce pollution. Even the smallest life forms like me are vital to a healthy Earth. Please care for us and our shared home. One possible version Post-writing Sample writing Beginning Hello, everyone! I’m a blue whale and let me introduce myself to you.I am the largest animal ever known to have lived on Earth. I live in the world’s oceans, migrating from polar to tropical waters. I feed mainly on tiny shrimp-like creatures called krill, filtering tons of water daily through my baleen plates. Body In the marine ecosystem, I help keep the ocean healthy. By eating krill, I control their population and support the balance of marine life. Even my waste provides important nutrients for phytoplankton, which produce much of the world’s oxygen. When I die, my body sinks and becomes a source of food and habitat for deep-sea creatures for decades. Ending However, my species is endangered. Ship strikes, ocean noise, plastic pollution, and climate change threaten our survival. I ask you to support marine protection areas, reduce plastic use, and promote cleaner oceans. We blue whales need your help to keep our home —the ocean—safe and thriving. Let’s work together to protect marine life. Why should we protect animals and plants? Because they are our friends and they help keep the balance of nature. Save animals， save our future！ 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. /ˈəʊʃn/ n. 大海；海洋 /ɪkˈsept/ prep. 除……之外；除了 tiny /ˈtaɪni/ adj. 极小的；微小的 在地球上 多达，达到…… 之多 Language points watch sb.do sth.观察某人做某事的全过程 watch sb.doing sth.观察某人正在做... 含有“减去”之意 The museum is open daily except Mondays. 博物馆除了周一每天都开放 TeacherWu英语工作室 原创设计 小红书：TeacherWu英语工作室 抖音：TeacherWu英语工作室 微信：TeacherWu678 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. lively /ˈlaɪvli/ adj. 精力充沛的；生机勃勃的 一个生机勃勃和健康的生态系统 play a(n) (+adj.) role/part in … 扮演一个重要的角色 many kinds of 许多种类的 death n.死亡 dead adj.死的；去世的 live up to活到……岁；达到……的寿命 all kinds of 各种各样的different kinds of 不同种类的 Language points TeacherWu英语工作室 原创设计 小红书：TeacherWu英语工作室 抖音：TeacherWu英语工作室 微信：TeacherWu678 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 except, besides与but except 除……之外；除了 强调所排除的内容不包含在内，含有“减去”的意思 besides 除……之外（还有） 包括 besides 后面的内容，含有“加上”的意思 but 除……之外 与 except 用法基本相同。常用于no, nothing, anything 之后 They all went to the party except Ann.除了安，他们都去了聚会。 We have a lot in common besides music.除了音乐，我们还有很多共同点。 There is no one but me.这里除了我没有别人。 2. Blue whales live in all oceans except the Arctic Ocean. 蓝鲸生活在除北冰洋以外的所有海洋中。 except prep. 除······之外；除了 Language points 3.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。 eg:The boy standing there is my brother. 站在那儿的男孩是我弟弟 (standing there修饰 the boy) Language points Must to do： Finish and polish your composition for 3c and submit it in next class. Complete the related exercises Choose to do： share some of the interesting facts about animals with your family members and let them realize the importance of protecting them. Homework TeacherWu英语工作室 原创设计 小红书：TeacherWu英语工作室 抖音：TeacherWu英语工作室 微信：TeacherWu678 34 Watch and learn Post-reading 按要求写出正确的单词、词组或句子。 海洋 (名词) __________ 2. 除了 (介词) ___________ 3. 极小的(形容词) __________ 4. 生机勃勃(形容词) _______ 5. 和……一样重（短语) __________ 6. 活到(短语) __________ 7. 创造（动词）__________ 8. 保护（动词）________ 9. 蓝鲸是地球上最大和最重的动物。 ___________________________ 10. 蓝鲸可以活到90岁。 _______________________ 11. 蓝鲸在我们世界中扮演重要角色。 ___________________ ocean except tiny lively as much as live up to create protect The blue whale is the largest and heaviest animal on earth. Blue whales play an important role in our world. Blue whales can live up to 90 years. SectionB 3a-3c 默写 The blue whale is the animal on earth. It can weigh 200 tons. Many people like watching blue whales swim, and they think it is the most beautiful things to see. Blue whales live in all oceans the Arctic Ocean. They eat a lot, but they eat some of the animals in the ocean. A blue whale can eat around four tons of these a day. Blue whales can 90 years. When a blue whale 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 ecosystem. Blue whales our world, so we must protect them. largest and heaviest as much as one of except tiniest live up to dies lively and healthy play an important role in Exercise 1.他一直努力达到父母的期望。 He is always trying his best to _____ ____ _____ his parents' expectations(期盼). 2. 二十四节气在中国文化中起重要作用。 The 24 solar terms _____ ____ _________ _________ _____ Chinese culture. 3.假如鸟吃了有病的或死的鱼，它们可能会相继死去。 If the birds eat the sick or dead fish, they may ________ ________. live up to play an important part/role in die off 完成句子 Exercise 4.这个有趣的部分才持续了半个小时。时间真短啊! This interesting part only ________ ________ half an hour. ________ ________ it was! 5.有了灯泡，人们可以在夜里做和白天一样多的事情。 With light bulbs, people can do _____ ______ ______ in the evenings ________ they can in the daytime. lasted for How short as many things as Exercise $