Unit 2 Section A（Grammar 3a-3c）（同步实用课件）-2025-2026学年八年级英语上册同步精美课件（人教版2024）

Home Sweet Home Home Sweet Home Section A What can you do for your home？ Grammar focus Learning objectives 通过本课时的学习，学生能够： 1.能够在不同生活场景中，精准识别can/could表请求和许可的语义，清晰梳理3a中问答的语言功能，理解不同情境下can/could的表意逻辑；(学习理解) 2.能够结合不同情境，熟练使用can/could完成对话补全与创编，遵循语法规则且契合生活交流逻辑，实现有效互动； (应用实践) 3.能够迁移can/could表请求、许可的用法，自主创设新生活情境（如校园求助、家庭活动协商等），用英语开展真实交流，体现语言服务生活的育人价值。(迁移创新) Jim’s mum is busy with chores, she wants Jim to help sweep the floor after dinner. She can say... Jim’s mum wants his dad to help hang up the photos. She can say... Could you please sweep the floor? Yes, Mum. I’ll do it at once. Can you please help me hang up the photos? Sure, I can. / No problem! Jim finishes his homework and wants to hang out after lunch. He can say... Could I hang out with my friends after lunch? Sorry, Jim, but you have to pack up your things first. The girl wants to put the flowers on the table. She can say... Can I put some flowers on the table? Yes, good idea! Could you please take out the rubbish? Can you help me hang up the photos? How did they make polite requests ? Could/Can you please+V.原...? 否定：Could you please+not+V.原...? Could / Can you do ……? / Could you please do ……? 意为“_______________”。用来有礼貌地提出______。 ___________更礼貌委婉，______________更直接随意。 请你……好吗？ 请求 Could you... Can you... Could I hang out with my friends after lunch? Can I put some flowers on the table? How did they ask for permission 请求/征求许可politely ? Could/Can I+V.原...? Could/Can I do ……? 意为“________________”。用来委婉地请求________。。 我可以……吗？ 许可 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. 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! 3a “求你做是请求，求己做是许可” R P P R 情态动词could可用于有礼貌地向对方提出要求或请求，也可用于提出建议。它本身不能作谓语，必须和不带to的动词原形一起构成谓语。 情态动词could/Can Let’s learn “Could you please+v原...? 用于提出要求或请求。 用于提出请求 肯定回答 Yes, sure./Of course I can. 好的，当然可以。 No problem. 没问题。 With pleasure. 乐意帮忙。 Sure/Of course/Certainly. 当然可以。 否定回答 Sorry, I can’t. I have to... 对不起，我不能。我得…… Sorry, I’m going to... 对不起，我将…… I’m afraid I can’t. I have to... 恐怕不行。我得…… I’m afraid not. 恐怕不行。 回答一般只用 can，而不用could。 用于征得许可 “Could I...?”意为“我能……吗？”，用于请求对方允许自己做某事。 肯定回答 Yes, you can. 是的，你可以。 Of course you can. 当然可以。 Yes, please. 是的，去吧/用吧/…… 否定回答 Sorry, you can’t. 对不起，你不可以。 Sorry, I’m afraid you can’t. 对不起，恐怕不行。 回答一般只用 can，而不用could。 could/can的其他用法 I can speak English very well. I could play the piano when I was 4 years old. 表能力，可译为“能够；会” could 表示过去的能力，表示现在的能力用can。此时could是can的过去式。 You could go to the station by subway. You can do housework for your mother. 表建议，可译为“你可以...” You could be right, but I don’t agree with you. It can’t be true. 表推测，通常用在否定句中， can’t可译为“不可能” Choose the best question to complete each conversation. 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? 1. A: ________________ B: Of course you can. 2. A: ________________ B: Yes, if you are careful with it. 3. A: _____________________ B: No, you can’t. You have a basketball game tomorrow, remember? You need a good rest. 4. A: Can I go to the movies? B: Of course. A: _____________________ B: I can’t. I have to do some work now. 3b /ənˈtɪl/ prep. 到…时；直到…为止 注意；当心 看电影 让某人搭车 C. Mr Lake, could I go to the toilet? D. Could I use your computer? B. Can I stay out until eleven? A. Could you give me a ride to town now? Can I stay out until eleven? until prep.& conj. 到……时；直到……为止 e.g. They worked until 5 p.m. yesterday. We danced and danced until a lot of them joined in. not ... until ...  直到……才…… e.g. I didn’t see Uncle Wang until the evening. Don’t move until I tell you. 【语境应用】将下列句子翻译成英语。 1.我们必须等到晚上7点。 _______________________________ 2.直到雨停了我们才可以出去。 _________________________________ 3.他们直到去年才有一辆汽车。 4.直到你长大后，你才会真正理解父母伟大的爱。 We must wait until 7 p.m. We can’t go out until the rain stops. They didn’t have a car _______________. You will never truly understand your parents’ great love ___________________ until last year until you grow up 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. _______________________________________________________________________ 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. _______________________________________________________________________ _______________________________________________________________________ Make up conversations for each setting, using can or could. A: Can / Could I use your phone? B: Sure. / Of course. A: Can / Could I borrow your notes? B: Of course. Here are my notes. A: Can / Could you help me open the door? B: Sure. / Of course. A: Can / Could you bring gloves and rubbish bags for cleaning up the community? B: Sure. / Of course. 3c What are the benefits(益处) of using “make polite requests” and “ask for permission” in our daily life? Show good manners（礼仪） Build good relationships （关系） Get positive responses （回应） Further thinking Politeness cost nothing and gain everything! 1. but your phone is dead.可是你的电话没电了。 Language points ①【形容词】死亡的、无生命的；失去功能的、失灵的 ②【名词】表示 “死者”，“the dead”（表一类人）。 ③dead（adj.） die（v.）death（n.） 花瓶里的花枯死了。 The flowers in the vase ______________. 电池没电了，钟表停了。 The battery __________, so the clock stopped. are dead is dead 3. If you are careful with it 如果你小心的话 Language points ① be careful with 注意；当心 ② be careful (not) to do sth. 小心（不要）做某事 ③ be careful = look out = watch out 小心，当心 Be careful with that computer 二、按要求写出正确的单词、词组或句子。 直到 (连词) __________ 2. 直到…才 (短语) ___________ 3.小心(短语) __________ 4. 看电影(短语) __________ 5. 不运行的(形容词) __________ 6. 记笔记 (短语) __________ 7. 打扫（短语）__________ 8. 社区（名词）________ 9. 你能带手套和垃圾袋吗？ ___________________________ 当然/没问题。 _______________________ 11. 我能在外面待到晚上十一点吗？___________________ 12. 你能帮我挂照片吗? ________________________________________ until not ...until be careful with go to the movies dead take notes clean up community Could you please bring gloves and rubbish bags? Sure./No problem! Could I stay out until eleven? Could you help me hang up the photos? Exercises 1. My phone is __________ (die). Could I borrow your power bank? 2. There are about five hundred ____________ (community) in our city. 3. Leo always takes __________ (note) carefully in English class. 4. Look! There __________ (be) some rubbish and paper bags on the playground. 5. —Could you please __________ (not say) bad words about Jack? —Sorry, I won't. dead 三、用括号内所给单词或短语的适当形式填空。 communities notes is not say Exercises 四、根据汉语意思完成下列句子(每空一词)。 1. 切洋葱时，请当心你的眼睛。 When you cut up the onions, please _______ _________ _______  your eyes. 2. 我们在课堂上应该认真记笔记。 We should ________ ________ carefully in class. 3. 你的书包乱糟糟。你需要整理它。 Your schoolbag is in a mess. You should ________ ______ _______. 4. 周末我想和朋友去看电影。 I want to ________ ________ ________ ________ with my friends this weekend. 5. 上学期，直到6月底，我们才结束新课。 We _______ finish the new lessons _______ the end of June last term. clean it up be careful with take notes go to the movies didn’t until Exercises $