Unit 2 Home Sweet Home Grammar Focus (3a-3c)（课件） -2025-2026学年人教版八年级英语上册

该初中英语课件聚焦can/could在请求与许可语境中的用法，系统梳理句型（Can/Could you/I (please) do sth.）、语义差异（can直接随意，could礼貌委婉）及答语，通过“Guess what they say!”活动导入，结合例句识别建立知识联系，以分类练习、对话补全、情境编对话搭建学习支架，帮助学生逐步掌握用法。 其亮点在于立足生活场景设计任务（借笔记、请邻居开门等），提升语言运用能力；通过“识别-分类-应用”练习链培养思维品质，结合表格总结句型答语助力知识梳理。学生在实践中感受英语价值，教师可借助清晰结构与情境任务提高教学效率。

Home Sweet Home Unit 2 Grammar Focus (3a-3c) Learning Objectives 能够识别 can、could 在请求和许可语境中的语义差异，清晰区分不同情境下的用法。 通过练习，学习掌握不同生活场景中 can / could 的使用方法并学会如何礼貌的回应请求和许可。 能根据生活场景用英语编造对话，让学生感受英语在实际沟通中的价值。 Guess what they say! ? Could you please pass the salt ? Could you please watch her 提出要求 Request Guess what they say! ? Can I help you ? Could we have some water please 请求允许 Permission Read the questions with can or could. Notice how they are answered. Then write R for requests or P for permission next to each question. 3a Could you please sweep the floor? Yes, Dad. I’ll do it at once. Could I hang out with my friends after lunch? Sorry, Jim, but you have to pack up your things first. Can I put some flowers on the table? Yes, good idea! Can you help me hang up the photos? Sure. / No problem! 要求 许可 R P P R = I will Summary 提出要求Request 请求允许Permission Can / Could I (please) do sth.? Can / Could you (please) do sth.? 你能不能/可不可以··？ 我能不能/可不可以··？ 1、Can比较直接随意，多用于朋友家人之间，语气更肯定。 2、Could更礼貌正式委婉，都用于陌生人长辈上级或需特别礼貌的场合 3、加上 please (请)会让表达更礼貌 4、回答 Can/Could you...? 时，用 can 或 can’t来回答 提出要求Request 常用句型 Can / Could you (please) do sth.? 肯定答语 Yes, sure/of course. 好的，当然可以。 No problem. 没问题。 With pleasure. 乐意帮忙。 否定答语 Sorry, I can't. I have to... 对不起，我不能。我得... I'm afraid I can't. I have to... 恐怕不行。我得... I'm afraid not. 恐怕不行。 常用句型 Can / Could I (please) do sth.? 肯定答语 Yes, you can./good idea! 是的, 你可以/好主意！ Of course you can. 当然可以。 Yes, please. 是的，去吧/用吧/...... 否定答语 Sorry, you can't. 对不起，你不可以。 Sorry, but you have to··· 对不起，但是你必须··· 请求允许Permission Can/Could 情态动词 特点： 1、无三单变形 2、后接动词原形 例句： 她能飞。 She can fly. 否：她不能飞。 She can not fly.= She can't fly. 疑：她能飞吗？ Can she fly？ 区别： 1、could更委婉 2、could是can的过去式 Tom, sweep the floor?I'll take out the rubbish. Sure!/No problem! Can you please Dad, hang out with my friends after lunch?They are waiting for me. Could I please Peter, ? Can you help me hang up the photo Choose the best question to complete each conversation. 3b A. Could you give me a ride to town now? B. Can I stay out until eleven? C. Mr Lake, could I go to the toilet? D. Could I use your computer? A: ______________________________ B: Of course you can. A: ______________________________ B: Yes, if you are careful with it. A: ______________________________ B: No, you can’t. You have a basketball game tomorrow, remember? You need a good rest. A: Can I go to the movies? B: Of course. A: ______________________________ B: I can’t. I have to do some work now. 载我一程 注意，当心 休息 3c Make up conversations for each setting, using can or could. 1. You're at your friend's home. You want to call your parents, but your phone is dead. ——————————————————————————— 2. You were sick at home yesterday. Your friend went to an English class and took notes. You want to know more about the class. ——————————————————————————— A: Can / Could I use your phone? B: Sure./ Of course. 做笔记 A: Can / Could I borrow your notes? B: Sure. Here you are. 3. You are holding a large box. It is difficult to open the door. Your neighbour comes. —————————————————————————— 4. You and your classmates want to help clean up the community. Ask your classmates to bring gloves and rubbish bags. —————————————————————————— 拿着 A: Could you please open the door for me? B: No problem. A: Could you please bring gloves and rubbish bags? B: Of course. 打扫干净 Summary vocabulary： until, be careful with, take notes, clean up, rubbish... sentence patterns： Requests: Could/Can you please...? Permission: Could/Can I...? $