Unit 5 Be Green Lesson 3 课件2025-2026学年北师大版英语八年级下册

该初中英语课件围绕“水足迹”展开，涵盖定义（含隐藏用水）、全球水资源短缺及减少方法，通过“Poster征集令”小组合作配文、AI配图，结合Group Work讨论海报内容，构建从概念学习到实践输出的学习支架。 其亮点是以任务驱动和实践学习为核心，融合语言能力（英文介绍）、思维品质（分析水足迹问题及解决方法）和学习能力（小组合作与AI工具运用）。例如用牛仔裤7500升隐藏水足迹案例具象化概念，课堂练习结合语法与环保词汇，作业分层设计。既提升学生跨文化沟通与环保意识，又为教师提供可操作的实践教学方案。

Prompt:Hi,I’m a junior high school student,in Grade 8. Could you please tell me the meaning of “choice”? (…Try to make it easier.) Prompt:Hi,I’m a junior high school student,in Grade 8. Could you please tell me the water footprint of “bike”? (…Try to make it easier.) Unit 5 Be Green Lesson 3 What Is Your Water Footprint? 北师大版初中《英语》八年级（下册） 【“英”你美好】“Poster 第一季”征集令来啦！ 征集令： 亲爱的创意小达人、环保小卫士们！我们每个人都是 天生的设计师、地球的守护者！请三人一组，合作配文、 借助AI配图，向来自世界各地的青少年们用英文介绍 Water Footprint. 请记住：在创造和实践中学习英语最有效。 What will you write in your poster? Group Work 1 2 3 4 Read paragraph 1-2 and answer the questions. 1.How many types are there about our water footprint? 2.How are water shortages around the world? Do you wear blue jeans? People make jeans from cotton, and cotton need a lot of water to grow. Watering the cotton plants makes up 92% of the water footprint of a pair of jeans! People also need to add a special colour to make it blue. This process uses a lot of water, and some people often let the dirty water flow away into the environment.This causes water pollution.It takes about 7500 liters to make a pair blue jeans. Hidden Water for A Pair of Blue Jeans Footprint 1.The hidden water footprint is the water to... 2.For example,it takes about...liters to... 3.How do you feel about our (hidden) water footprint? Hidden Water Footprint for________. 1.There is no...for everyone. 2....are living without... 3....waste water. Water Shortages Around the World Read paragraph 3 and find out ways to reduce the size of our water footprint. Is it easy to make these simple changes to our ? Why or why not ？ life style Lifestyle is the way a person lives, including daily habits, food, sports, sleep, hobbies and how we spend our time every day. What will You do to reduce the size of water footprint? Every counts. Every small step . drop adds up 【“英”你美好】“Poster 第一季”征集令来啦！ 征集令： 亲爱的创意小达人、环保小卫士们！我们每个人都是 天生的设计师、地球的守护者！请三人一组，合作配文、 借助AI配图，向来自世界各地的青少年们用英文介绍 Water Footprint. 请记住：在创造和实践中学习英语最有效。 Presentation 1.To save energy, we should ______ the lights when leaving a room. A. turn on B. turn off C. turn up B 答案：B 解析：根据环保主题，"离开房间时关灯"是节能行为，turn off 表示关闭。干扰项turn on（打开）和turn up（调高）不符合语境。 【课堂练习】 2.Plastic bags cause serious ______ to the environment. A. pollution B. solution C. reduction A 答案：A 解析：pollution（污染）是环保单元核心词汇，与"塑料袋危害环境"直接相关；reduction（减少）是积极行为，不符合句意。 【课堂练习】 3.The teacher kept us ______ about green actions for 20 minutes. A. talk B. talking C. to talk B 答案：B 解析：考查宾语补足语用法。keep sb. doing sth. 表示"让某人持续做某事"，此处talking作宾补。to talk（不定式）不用于keep结构。 【课堂练习】 4.______ terrible the water pollution is in this river! A. What B. What a C. How C 答案：C 解析：感叹句结构重点。How + adj. + 主语 + 谓语! 修饰形容词terrible，What需接名词短语（如What terrible pollution!）。 【课堂练习】 5.—I often use disposable chopsticks. —______ Try reusable ones to reduce waste. A. That's great! B. You'd better not. C. No problem. B 答案：B 解析：考查环保建议句型。回应"使用一次性筷子"应给出改进建议（You'd better not+替代方案），符合单元功能句We'd better.../Why not...?。 【课堂练习】 6.We found the park ______ with plastic bottles after the festival. A. fill B. filling C. filled D. to fill C 答案：C 解析：过去分词"filled"作宾语补足语，表被动状态（公园被垃圾填满）。单元语法重点要求掌握过去分词作宾补。 【课堂练习】 7.The teacher made us ______ the tap while brushing teeth to save water. A. turn off B. turning off C. to turn off D. turned off A 答案：A 解析：使役动词"make"后接省略to的不定式（turn off）作宾补，强调节水行为 。 【课堂练习】 Homework 1. 跟读课文，纠正语音语调。 2. 制作海报： A层：制作水足迹海报，并录制介绍视频； B层：制作碳足迹海报，并录制介绍视频； C层：制作两种及以上其它的生态足迹海报，并录制介绍视频。 Thank You! $