Unit 2 Healthy lifestyle Learning about language 教学设计-2024-2025学年高中英语人教版选择性必修第三册

该高中英语Unit 2 Healthy lifestyle教学设计聚焦情态动词（must, can't, may/might/could, should）表推测的用法，通过健康场景图片导入，提问激活学生对健康行为的简单描述，教师示范含情态动词的句子，搭建从旧知到目标语言的学习支架。 此资料特色在于融合核心素养，语言能力上通过“问题卡讨论健康问题”等语境化活动实现从识别到产出，思维品质上引导学生自主归纳确定性层级（must>should>may/might/could>can't），学习能力上采用合作探究（小组分类例句）。实例丰富且贴合主题，提升学生运用准确性，为教师提供可操作活动设计，提高课堂效率。

Unit 2 Healthy lifestyle Learning about language教学设计 一、文本分析 本部分教材聚焦于本单元的核心语法项目——**情态动词（Modal Verbs）**，特别是它们在表达“推测”和“可能性”（Speculation and Possibility）时的用法。教材通过典型的例句，展示了 **must, can/could, may/might, should, can't** 在不同语境（肯定、否定、疑问）中表示不同确定性程度的用法。这些例句均与“健康生活”主题紧密相关，如谈论睡眠习惯、饮食选择、运动表现等，使语法学习不再是孤立的规则记忆，而是融入有意义的主题语境中。学习并掌握这些情态动词的推测性用法，能帮助学生更准确、更地道地表达对健康相关行为的判断、建议和不确定性，是实现本单元语言输出任务的重要工具。 二、Teaching Objectives Upon completion of this lesson, students will be able to: 1. Linguistic Competence:Identify and understand the different degrees of certainty expressed by modal verbs (*must, can't, may, might, could, should*) in the context of healthy lifestyles. 2. Learning Ability:Deduce the rules of modal verbs for speculation through guided discovery and collaborative work, moving from recognition to production. 3. Thinking Capacity:Make logical speculations and give reasonable advice on various health-related scenarios using the target language. 4. Cultural Awareness:Discuss and evaluate different lifestyle choices by applying the modal verbs, fostering critical thinking about health issues. 三、Key Teaching Points and Difficulties Key Points: The meaning and function of modal verbs (must, can't, may, might, could, should) for making speculations. The hierarchy of certainty: must > should > may/might/could > can't. Applying the rules correctly in sentence construction (e.g., must + base verb for present speculation). Difficulties: Distinguishing between the subtle differences in degrees of certainty (e.g., may vs. might; should for expectation vs. advice). Correctly using the opposite form for negative speculation (e.g., must for certainty vs. can't for impossibility). Applying the grammar point spontaneously and accurately in freer speaking and writing tasks. 四、Teaching Procedures Step 1: Warm-up & Lead-in (5 mins) Activity:The teacher shows pictures depicting health-related scenarios (e.g., a person yawning, someone choosing salad over fries, an athlete winning a race). Task:Ask students: "Look at the pictures. What can you say about these people?" Elicit responses. Students will likely use simple language. The teacher then models a sentence using a modal verb: "He must be tired." / "She might be on a diet." / "He must train very hard." Purpose:To activate prior knowledge and introduce the target language in a contextualized, intuitive way. Arouse students' interest. Step 2: Discovery & Rule Deduction (10 mins) Activity:Guide students to analyze the example sentences from the textbook. Task:In pairs, students categorize the sentences based on the modal verb and the degree of certainty they express. They complete a simple chart on the board or in their notebooks. Modal Verbs for Speculation ┌───────────────────┬───────────────────────┐ │ Certainty │ Modal Verb │ ├───────────────────┼───────────────────────┤ │ 100% Sure (✔) │ must │ │ 100% Sure (✖) │ can't │ ├───────────────────┼───────────────────────┤ │ Possible (✔) │ may / might / could │ ├───────────────────┼───────────────────────┤ │ Expected (✔) │ should │ └───────────────────┴───────────────────────┘ Purpose:To encourage students to discover the grammar rules themselves, promoting deeper understanding and retention. Step 3: Production & Application (10 mins) Activity:"Give Advice / Solve the Problem"speaking activity. Task:In small groups, each group draws a "problem card" related to an unhealthy habit (e.g., insomnia, stress, poor diet). They must discuss and present their speculations on the causes and give advice using the target language. Speculation: "She might be stressed about her exams." / "She can't be sleeping well." Advice:"She should try meditation before bed." / "She must avoid caffeine in the evening." Purpose:To integrate the target grammar into a meaningful, communicative task that directly connects to the unit theme, moving from speculation to advice. Step 4: Summary & Homework (5 mins) Summary:Briefly recap the "ladder of certainty" using the mind map from Step 2. Ask students to give one example for each modal verb. Homework: 1. Writing:Write a short paragraph (80-100 words) speculating about the lifestyle of a person described in a brief profile, using at least 5 different modal verbs for speculation. 2. Preparation: Find an online article about a health trend and be prepared to comment on it in the next class using modal verbs (e.g., "This might be effective because..."). 板书设计 (Blackboard Design) Unit 2 Healthy Lifestyle - Modal Verbs for Speculation | Certainty | Modal Verb | Example | | ------------------ | ---------------- | -------------------------------- | | Sure (True) | must | He must be a doctor. | | Sure (False) | can't | She can't be hungry. | | Expected | should | The package should arrive today. | | Possible | may / might / could | It might rain later. | Remember:Modal Verb + Base Verb (He must drink more water.) 学科网（北京）股份有限公司 $$