Unit 6 Grammar课件 2025-2026学年沪教版七年级英语下册

该初中英语课件围绕情态动词（can, may, must等）的意义及用法展开，通过父母给孩子的安全邮件导入，结合“能做什么、不能做什么”等问题引导学生关注情态动词，搭建从日常规则情境到语法知识的学习支架。 其亮点是以“家庭用电安全”为主题，设计听力、角色扮演、小组创作等活动，如分组制作厨房、客厅等场景的安全指南，融合语言能力（正确运用情态动词表达规则）、思维品质（分析情境匹配情态动词）和学习能力（合作探究）。学生能将语法与生活结合，教师可通过具体活动提升教学效果。

Learning objectives By the end of this class, I can: 1. Get to know the meanings and usage of modal verbs. 2. Use modal verbs properly to talk about rules in daily lives. 3. Make a “Home Electrical Safety Guide”. Dear Daisy and Benny, You’re home alone. Please stay safe with electricity. Both of you mustn’t touch any electrical appliance with wet hands. Daisy can use the microwave, but Benny, you mustn’t put metal in it. You must unplug the hair dryer after use. You may watch TV for 1 hour. You needn’t turn it on if you don’t want to. Be smart, be safe! Love, Mum & Dad Daisy's parents were on a business trip for two days. They left a note for Daisy and their son Benny. What can they do? What mustn’t they do? Pay attention to the red words. What are they? Modal Verbs 情态动词 Do they change form when the subject changes? Rule 1: Modal verbs: no change for different subjects! What do these modal verbs mean? What if I remove the can, must, and may? The speaker’s mood and attitude changed! What other rules do they need? How can we learn more about safe electricity use at home? Activity 1: Read and Understand Dad, it’s so boring to stay at home. I miss you. Benny, why don’t you play with your robot Bobo? Just know what Bobo can and cannot do first. Great! Bobo can introduce how to use it to us. Instruction card can may must needn’t mustn’t activity Bobo swim, dance and play chess You ask Bobo questions keep Bobo away from water put Bobo in water charge Bobo every day Listen to Bobo’s introduction and complete the instruction card. (Tick ☑ the right modal verb in the table.) ✅ ✅ ✅ ✅ ✅ Which modal verb feels the most positive？ Which one feels the most negative？ Activity 2: Listen and Tick Choose the correct modal verbs to fill in the blanks in the user guide. can / cannot / may / may not / must / mustn’t / needn’t 1. You _______ close the lid before starting. 2. You _______ put too much food in the blender. 3. You _______ unplug the blender after use. 4. You _______ clean the blender after each use. 5. You _______ touch the blade with your fingers. 6. You _______ use the blender if you don’t want to. The content of the users’ guide is missing... User Guide must mustn’t may can mustn’t may not Look at the verbs after the modal verbs. What do they have in common? Rule 2: modal verbs + do (basic form) Activity 3: Fill and Explain Practice in pairs, talk about how to use rise cooker safely. A: May I use the rice cooker? B: Yes, but you must … / you mustn’t … A: Must I unplug it? B: You needn’t … but you must … A: Got it. And I mustn’t … B: Exactly! I want to cook rice in a rice cooker, but how should I use the rice cooker? I can help you! Example Activity 4: Role-play and Practice To ensure the safety of electricity usage at home, Daisy decided to make a guide and stick it on the refrigerator. Group 1-2: Kitchen (microwave, rice cooker, blender, fridge) Group 3-4: Living room (TV, fan, lights, phone charging) Group 5-6: Bathroom (hair dryer, water, sockets) Group 7-8: Bedroom (laptop, alarm clock, heater) Group Work Activity 5: Create and Share Time to show! Guide for Home Alone Electricity ★★★★★ ★★★★ ★★★ 1. I can use correct modal verbs (can, may, must, needn’t, mustn’t, etc.) in the rules. 2. I can match the strength of modal verbs to the right situation (e.g., must for strong rules, may for permission). 3. I can write clear and useful safety rules that help Daisy and Benny stay safe at home. Check your guide according to the evaluation. With the right guide on the fridge, Daisy and Benny can stay safe and smart. Activity 6: Present and Improve Electricity makes life easy, but only if we use it safely. Be smart, be safe! Homework Must do Benny is going to primary school. Use modal verbs to write at least 2 dos and 2 don’ts to tell him the school rules. Choose to do Make a “Home Electrical Safety Guide”. Use at least 3 different modal verbs. 1.We ______ see electricity, but we ______ see its power in lights. A. can; can B. can’t; can C. must; may D. may; must 答案：B 解析：表达“看不见电但能看见其作用”，否定用 can’t，肯定用 can 课堂练习 2.—______ I use the hairdryer in the bathroom? —No, you ______. It’s dangerous! A. Must; mustn’t B. May; can’t C. Can; couldn’t D. May; mustn’t 答案：D 解析：请求许可用 May I...?，禁止用 mustn’t 强调安全规则 课堂练习 3.To save energy, you ______ turn off lights when leaving a room. A. must B. may C. can D. mustn’t 答案：A 解析：must 表示义务/必要行为（节能要求） 课堂练习 4.Look at the sign: "______ touch wet wires!" It means we ______ keep away. A. Must; may B. Don’t; must C. Can’t; should D. May not; can 答案：B 解析：警示牌用祈使句 Don’t touch，对应 must（必须遵守） 课堂练习 谢谢观看 Thank you $