Unit 8: Our Blue PlanetLesson 4 Theme ReadingI. Material Analysis内容解读：本课时围绕“人与自然”中“沙漠地区节水的重要性与方法”展开通过阅读沙漠家庭的真实案例，学生将学习如何在缺水环境中合理用水，并通过可视化策略深化理解活动包括小组讨论节水方法、阅读理解正误判断、图表分析及词汇应用，旨在培养学生节水意识与批判性思维II. Teaching Aims1.理解沙漠地区水资源稀缺的现状，掌握节水方法；2.通过可视化策略（构建画面）增强对文本的理解；3.识别文本的主要观点与支持细节，完成图表分析；4.培养节水意识，反思自身用水习惯III. Teaching Procedures课时教学内容概述本课时通过真实案例引导学生思考沙漠地区节水的重要性学生将结合可视化策略分析文本，并通过小组讨论、图表填写和词汇应用活动巩固知识教学步骤教学步骤学习活动效果评价Step 1: Lead-in1. Start with a question: "If you live in the desert, how do you save water?" Then show the learning goals.2. Show pictures of deserts and ask: "What are the features of water resources in desert areas?" 观察学生回答问题的表现，评判其参与度。
设计意图： 创设情境，激发学生对沙漠节水问题的兴趣Step 2: Pre-reading1. Group Activity (Activity 1): Observe the pictures and discuss water - saving methods (such as taking quick showers, reusing water).2. Predict the text content: "How do desert families obtain and use water?"根据学生讨论的深度，判断其对节水方法的理解设计意图： 激活背景知识，为阅读作铺垫Step 3: While-reading1. Reading Activity (Activity 2), complete the visualization exercise: - What I read: "Desert families can only take a bath once a week." - What I picture in my mind: The scene of the family collecting bath water. - What I understand now: Water resources in the desert are extremely scarce.2. Complete the True - or - False questions (Activity 3).观察学生可视化练习和答题的准确性，评价其阅读理解能力。
设计意图： 通过可视化策略将抽象文本转化为具体情境，增强理解Step 4: Post-reading1. Complete the main idea and details chart (Activity 4): - Main idea: The water resource dilemma of desert families. - Details: Water shortage, digging wells at high cost, the author's appeal for water conservation.2. Fill in the blanks with phrases from the text (Activity 5), such as "digging wells", "reuse water".根据学生填表的完整性和填空的正确率，评价其对文本的掌握程度设计意图： 通过图表和词汇练习，帮助学生系统化知识并内化语言Step 5: Summary & Homework1. Summarize the key points of this lesson: The importance of water conservation in the desert and specific methods.2. Assign homework: Write a short passage comparing the water - using habits in the desert and in your own life, and put forward three suggestions for water conservation.帮助学生巩固知识并联系实际。
设计意图： 通过写作任务引导学生反思自身行为，培养环保意识IV. Blackboard DesignLesson 4 Theme ReadingKey Vocabularydigging wells（挖井）reuse water（重复用水）take a quick shower（快速淋浴）Main Idea & DetailsMain idea: Desert families face the challenge of water scarcity.Detail 1: Families can only take a bath once a week and collect wastewater.Detail 2: They obtain groundwater by digging wells at a high cost.Detail 3: The author appeals for water conservation.V. 教学反思教学亮点：通过沙漠图片和讨论活动有效激发学生兴趣，为后续阅读奠定基础学生通过构建画面深入理解文本，尤其在描述沙漠家庭用水细节时效果显著作业设计引导学生反思自身用水习惯，将课堂知识迁移到实际生活。
改进空间：小组讨论环节部分学生耗时较长，需设置明确时间限制并加强引导对于语言能力较弱的学生，可提供词汇表或简化图表填写任务若能加入沙漠节水技术的短视频，可进一步丰富学生的直观理解。