Unit 2 Home Sweet Home SectionA Grammar Focus课件2025-2026学年人教版英语八年级上册

Unit 2 Home Sweet Home Section A（Grammar Focus） Read the sentences. Match the two parts. Make polite requests 提出请求 Ask for permission 请求许可 Can I hang out with my friends after lunch? Can I grow some flowers there? Can I invite my friends to our new house? Could I go out? Could we keep some fish here? Can you sort your things into those boxes? Can you take care of them every day? Could you please help me hang up the photos? Could you please sweep the floor? Discuss in groups to find out how to answer the Can/Could questions. 常用句型 Can / Could you (please) do sth.? 肯定答语 否定答语 Yes, sure/of course. 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。 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。 Learning goals 1. New words: until,movie,dead,note,community,rubbish 2. Expressions: be careful with,the movies,take notes,clean up 3. Sentences: ① Could you give me a ride to town now? ② Could I hang out with my friends after lunch? New words until /ənˈtɪl/ prep. 到……时；直到……为止 dead /ded/ adj. 不运行的；死的 movie /ˈmuːvi/ n. 电影 常用句型 Can / Could I do sth.? 肯定答语 否定答语 Yes, you can. 是的, 你可以。 Of course you can. 当然可以。 Yes, please. 是的，去吧/用吧/...... 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。 Could I hang out with my friends tonight? No, you couldn’t. Sorry, you can’t. ✖ ✔ 在回答用could 提出的请求时， 通常不用 could而用 can。 New words note /nəʊt/ n. 笔记；记录；便条 v. 注意；指出 community /kəˈmjuːnəti/ n. 社区；社团 rubbish /ˈrʌbɪʃ/ n. 垃圾 Activity 2 Use can/could correctly 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? 1. A: ______________________________ B: Of course you can. 2. A: ______________________________ B: Yes, if you are careful with it. C. Mr Lake, could I go to the toilet? D. Could I use your computer? 3. 提出建议: could与can的区别 could与can都是情态动词，could是can的过去式。二者都可用于表示请求，但是用法稍有不同。 can表示一般性的请求，语气随便，常用于熟人之间或长辈对晚辈、上级对下级的场合； Can you tell us your story, Tony? 你能给我们讲讲你的故事吗，Tony？ 用 can 提出直接建议（常用于口语，语气较随意） We can eat in a restaurant this evening. 今晚我们可以在餐馆吃饭。 could表示有礼貌的请求，语气委婉，常用于非熟人之间或晚辈对长辈、下级对上级的场合。 —Could you tell us if it snows in winter in Australia? —Sure. —请告诉我们，澳大利亚冬天下雪吗？—当然可以。 用 could 提出委婉建议（语气更礼貌、含蓄，适合正式或陌生场景） Maybe I could give you a lift / ride to the supermarket. 也许我可以让你搭我的车去超市。 You could try reading the instructions before using. 你可以试着在用前先读一下说明书。 could 的其他用法如下： (1)could 为 can 的过去式，表示能力。 He could ride a bike at the age of five. 他五岁时就会骑自行车了。 拓 展 (2)表示可能性，指对过去、现在或将来的某种可能的推测。 The book could be Lily’s because she likes reading books. 那本书可能是莉莉的，因为她喜欢看书。 (3)表示建议。 You could go there by bus. 你可以乘公共汽车去那儿。 4. could与can表示推测 肯定句中的推测： can 通常不用于肯定句表示推测，会显得不自然。 He can be at home now. 不自然 He could/may/might be at home now. 他可能在家。 could 可以用于肯定句，表示不太确定的推测 ≈ may/might。 She could be lying. 她可能在撒谎。 It could rain later. 稍后可能会下雨。 否定句中的推测： can't 和 couldn't 都可用于否定句，但语气不同： couldn't语气更弱，表示"不太可能"， can't不可能 。 She couldn't be the thief—she was with me all day.  她不可能是小偷，她一整天都和我在一起。 1. —My English is poor. Could you help me with it? —_________________. A. Thank you B. Me, too C. No problem D. See you ✔ 一、单项选择。 语法精练 2. —Mom, could I surf the Internet after finishing my homework? — __________.You’d better go out for a walk. A. Go ahead B. Sorry, you can’t C. Of course you can ✔ A: Hey, ________ ________ ________ __________ ________ me in the park this afternoon? B: __________! I just need to finish my homework first. Then we can have a good game. 2. You plan to play basketball in the park. You want to ask your friend to join you. Sure can you play basketball with Practice 场景 2：邀请朋友一起运动 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 I. 用括号内所给单词或短语的适当形式填空。 communities notes is not say Exercises 情境 can could 肯定推测 不自然 可能≈may/might 否定推测 can't不可能 couldn't不太可能 疑问推测 直接 更委婉 过去推测 仅限否定 can't havedone could have done 可能做过 3 Exercise 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. 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? /ənˈtɪl/ prep. 到……时；直到……为止 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 22 II. 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 III. 按要求完成下列句子(每空一词)。 1. She can fix the bike herself. (改为一般疑问句) ________ she ________ the bike herself? 2. —Mike, could you lend me your dictionary? (作肯定回答) —________ ________. Here you are. 3. —Excuse me, could I open the window? (作肯定回答) —Yes, ________ ________. 4. He could solve the problem. (对画线部分提问) ________ ________ he ________? 5. Lucy was able to ride a bike at six. (改为同义句) Lucy ________ ________ a bike at six. Yes sure you can /of course What could do could ride Can fix Exercises 3. — ________ you give me a hand? I can’t move the box by myself. —No problem. A. Could B. Should C. Must D. Need ✔ 4. — Helen, could you please water the flowers in my garden? —_________. They are so lovely. A. That’s too bad B. With pleasure C. You’re welcome D. I’m afraid not ✔ We learn: 1. vocabulary: until, be careful with, take notes, clean up, rubbish... 2. sentence patterns: Requests: “Could you please...?” / “Can you help me...?” Permission: “Could I...?” / “Can I...?” We can: make polite requests and ask for permission in daily scenarios. Summary 1. Could you please ______ (take/taking) out the rubbish? 2. David, my pen is broken. ______ (Should/Could) I use yours? 3. _______ (Can/Could) you play basketball when you were in primary school? take Could 二、选词填空。 Could Homework 1. 基础层：背诵 3a 对话，用 5 个生词（如 until, dead, note 等） 各造 1 个句子。 2. 提高层：用 10 个新词 + 3 个 if 句写 “家庭派对计划”。 3. 拓展层：策划"礼貌解决社区问题" （如：用could协商清理rubbish）。 Thank you! $