Unit 2 Section A（Grammar Focus 3a-3c）【精品课】 2026-2027学年八年级英语上册同步精品课件（新教材人教版）

该初中英语课件聚焦情态动词can/could表请求与许可的用法，通过热身歌曲“Can you...?”激活已知，结合美国小学英语课视频引入主题，从can表能力自然过渡到can/could的请求与许可用法，搭建清晰学习支架。 其亮点在于融合语言能力（掌握句型）、思维品质（编创剧本）与情感态度（礼貌沟通），通过3a标记R/P练习、情景对话填空（如借手机）及歌谣记忆，辅以同意/拒绝表达表格总结，提升学生语言运用与思维能力，为教师提供系统教学素材，助力高效课堂。

Grammar Focus 3a-3c Unit 2 Home Sweet Home Learning Goals Language ability: To master the usage of can and could to ask for request or permission.进一步掌握表示用can/could提出请求与请求许可方面的句型. Thinking quality: To be able to make up a script with imagination. 能够发挥想象，编造情景短剧。 Learning ability: To learn to summarize the usage of indefinite pronouns and put them into use.能够归纳总结can/could的用法，并学以致用。 Emotional attitude: To teach students to request or ask for permission in a polite way. 引导与培养学生如何有礼貌地提出请求与得到相应的答复。 1 Lead-in Part 1. Question What does this video talk about? If you have difficulties, you can politely ask others for help. 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 3 Can you swim? Can you dive? Can you ride a bike? Can you run? Can you jump? Can you drive a car? Can you sing? Can you dance? Can you write a song? can可表示能力 过去式为Could Do you know other usages? Watch the video What can we use “can/could” for? Can/Could表请求/允许的用法 情态动词can/could构成的句型可用于向对方委婉地提出请求或征求对方的许可。它们本身不能作谓语，只能和动词原形一起构成谓语。 2 Presentation Part 2. 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 Pay attention to the bold words. 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! Make polite requests Ask for permission Make polite requests Ask for permission 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 9 Presentation 3a Read the question with can or could. Notice how they are answered. Then write R for requsets or P for permission next to each question. 欣然答应 委婉回绝 欣然许可 欣然答应 request: the act of politely or officially asking for something （礼貌、正式的） 要求请求 permission:If someone is given permission to do something, they are allowed to do it. 允许，许可，准许 R P P R 总结 提出 要求 Can you help me hang up the photos? Could you please sweep the floor? 用于请求别人做某事 请求 允许 Can I put some flowers on the table? Could I hang out with my friends after lunch? 用于请求别人允许自己做某事 Request Permission P R P R R P R R Listen to the sentences and tell us it is R or P? 肯定回答 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。 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。 Can you lend me your pen? Could you please tell me the way to the subway station? 提出 要求 “Can/Could you please...?”“请你……好吗？”“你能/可以……吗？” 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。 Can I watch TV after finishing my homework? Can I try on this T-shirt? Can I turn on the fan? Could I hang out with friends tonight? Can/Could I...?”“我能……吗？” 请求 允许 注意 回答时：在回答用could 提出的请求时，通常不用 could而用 can。 例如： — Could I have a look at your book? — Yes, you can.(不能用Yes, you could.) — Sorry, you can’t.(不能用Sorry, you couldn’t.) 注意 使用 could只是让请求更礼貌，但仍要注意说话时的语气和态度，面带微笑、语调温和会让你的请求更易被接受。 例如：Could I stay up a little later to finish this movie? 我可以晚点睡把这部电影看完吗？ 肯定回答：Yes, you can. But don't stay up too late.可以，但别熬太晚。 否定回答：No, you can't. You have to get up early tomorrow.不行，你明天得早起。 情态动词 can / could 情态动词can和could都可用于表示能力、请求允许和给予许可，以及提出请求和建议。 1. 表示能力 例如：Can you speak English? 你会说英语吗？ He could sing very well when he was young. 他年轻的时候歌唱得很好。 When I was five, I could swim like a fish. 我五岁时游泳游得像条鱼一样好。（could 是can的过去式） 补充内容 2.提出建议 对平级或晚辈可用 can，快速给出建议； 对上级、长辈或需要体现礼貌时用 could，避免显得生硬。 We can eat in a restaurant this evening. 今晚我们可以在餐馆吃饭。 用 can 提出直接建议（常用于口语，语气较随意） Maybe I could give you a lift to the supermarket. 也许我可以让你搭我的车去超市。 You could try reading the instructions before starting.你可以试着在开始前先读一下说明书。 用 could 提出委婉建议（语气更礼貌、含蓄，适合正式或陌生场景） I can, you can, everybody can sing, dance, jump and run. He can, she can, everybody can run, sit and stand. You can, they can, everybody can cook, clean, wash the pan. We can, you can, everybody can draw, play and have a lot of fun! can/could无人称和数的变化 can/could+v.原型 Can/Could for polite request and permission. 表达 场景示例（请求→许可） 核心逻辑 “Sure.” “Can you help me?” → “Sure.” “May I use your phone?” → “Sure.” 口语化万能同意，简洁直接 “Of course.” “Will you pass the salt?” → “Of course.” “Can I borrow your book?” → “Of course.” 礼貌且正式的肯定回应 “No problem.” “Could you pick up the package?” → “No problem.” “May I leave early today?” → “No problem.” 强调 “无阻碍” 的积极态度 “Alright.” “Can you call me later?” → “Alright.” “May I join your group?” → “Alright.” 中性偏口语的同意 “Go ahead.” “Can you start the meeting?” → “Go ahead.” “May I start eating?” → “Go ahead.” 示意 “可以行动” 的许可 以下是既能回应请求（Request） 又能回应许可（Permission） 的通用同意表达。 Can/Could for polite request and permission. 以下是既能回应请求（Request） 又能回应许可（Permission） 的通用拒绝表达。 表达 场景示例（请求→许可） 核心逻辑 “I’m sorry, I can’t.” “Can you drive me home?” → “I’m sorry, I can’t.” “May I use your car?” → “I’m sorry, you can’t.” 道歉 + 直接拒绝，请求用 “我不能”，许可用 “你不能” “Not possible.” “Could you finish it today?” → “Not possible.” “May I enter the lab?” → “Not possible.” 简洁强调 “不可行” “I’m afraid not.” “Can you attend the party?” → “I’m afraid not.” “May I bring a friend?” → “I’m afraid not.” 委婉软化拒绝语气 “Not right now.” “Can you help me now?” → “Not right now.” “May I use the computer?” → “Not right now.” 暂时拒绝，保留可能性 Exercise 1. — you remind Sally not to wear her school uniform for the picnic tomorrow?  —OK. I’ll tell her. A. Must B. Should C. Can D. Need 2. The lovely boy ride the bike at the age of six. A. must B. could C. need D. should 3. —Bill, I use your ruler? —Of course, you can. Here you are. A. can B. must C. need D. should C B A 4. —______ you remind Sally not to wear her school uniform for the picnic tomorrow? —OK. I'll tell her. A. Must B. Should C. Can D. Need 5. —Could you please help me with my homework? —Yes, I ______. A. must B. could C. need D. can 6. —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 Exercises 7. —Mum, ______ I go shopping with you? —Yes, you ______. But you have to finish your homework first. A. could; can B. could; could C. must; can D. must; could 8. —Bill, ______ I use your ruler? —Of course you can. Here you are. A. can B. must C. need D. should 9. The lovely boy ______ ride the bike at the age of six. A. must B. could C. need D. should Exercises 1. How many times do you turn to your mom every day? 2. What do you usually turn to your mother for? 3. How do you ask your mom for help? Any minute! For things I can’t find. Just call “Mom, help!” tidy the room bring some water drive me to school wash the clothes Could you please______?/Can you help me______? Could/ Can I ______? hang out with friends plant flowers on the balcony invite friends to the new home 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? 做笔记 去看电影 给某人搭便车 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 28 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. 3c 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. 做笔记 4 Production Part 1. Choose one setting from your daily life, then make a long conversation using can or could. 861b240d-cd4e-4b4b-87c2-161e8c2fa4ea.source.default.zh-Hans 30 礼 ， 经国家 礼 者 ， 人道之极也 定社稷 ， 序名人 礼 ， 经国家 利后嗣 礼者 ，敬 人也 不学礼 ，无以立 礼者 ， 敬人也 人无礼则不生 不学礼 ，无以立 定社稷 ， 序名人 利后嗣 礼 者 ， 人道之极也 礼者 ，敬 人也 不学礼 ，无以立 不学礼 ，无以立 利后嗣 定社稷 ， 序名人 利后嗣 礼 ， 经国家 礼 者 ， 人道之极也 定社稷 ， 序名人 不学礼 ，无以立 利后嗣 礼者 ，敬 人也 定社稷 ， 序名人 以此类推，相同内容文本框内文字内容需相同 “ Give reasonable reasons to get other’s understanding and forgiveness. 以礼待人, 以礼拒人 情态动词 can / could的其他用法 情态动词could 为 can 的过去式，可以表示能力，表示可能性和建议。 1. 表示能力 例如：Can you speak English? 你会说英语吗？ He could sing very well when he was young. 他年轻的时候歌唱得很好。 When I was five, I could swim like a fish. 我五岁时游泳游得像条鱼一样好。（could 是can的过去式） Language points 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. 提出建议 对平级或晚辈可用 can，快速给出建议； 对上级、长辈或需要体现礼貌时用 could，避免显得生硬。 We can eat in a restaurant this evening. 今晚我们可以在餐馆吃饭。 用 can 提出直接建议（常用于口语，语气较随意） Maybe I could give you a lift to the supermarket. 也许我可以让你搭我的车去超市。 You could try reading the instructions before starting.你可以试着在开始前先读一下说明书。 用 could 提出委婉建议（语气更礼貌、含蓄，适合正式或陌生场景） Language points 1. —My English is poor. Could you help me with it? —_________________. A. Thank you B. Me, too C. No problem 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 3. — ________ you give me a hand? I can’t move the box by myself. —No problem. A. Could B. Should C. Must D. Need 用can't/could/must/have to填空 1.--__________I have an ice cream, Mom? --You'd better not.You have a cold now. 2.--___________you please clean the living room? --Sorry,I_________.I___________do my homework now. 3.Mom,___________you buy me a new watch? The old one just stopped working. 4.—I can't stop eating junk food. -- For your health, I'm afraid you______. 5.—What about seeing a new film this evening? —I am afraid I_________.I_________finish my math exercises this evening. Could Could can’t have to could have to can’t have to 用can't/could/must/have to填空 Summary New words until; movie; dead; note; community; rubbish make polite requests and ask for permission Grammar Expressions be careful with; the movies; take notes; clean up Make polite requests: 用于请求别人做某事 Ask for permission: 用于请求别人允许自己做某事 Exercise-翻译题 1. A：你能帮我拿一下书架上的书吗？ B：当然可以。 A: Could you get the book on the bookshelf for me? B: Sure. 2. A：我可以借用你的词典吗？B：可以，但是请明天还给我。 A: Can I borrow your dictionary? B: Yes, but please return it to me tomorrow. 3. A：你能告诉我去图书馆的路吗？ B：沿着这条街走，在第二个十字路口右转。 A: Could you tell me the way to the library? B: Go along this street and turn right at the second crossing. Must-do 必做 1.Review the usage of could and can. 2.Summarize the rules and usage of mainking polite requests and asking for permission. Choose to do 选做 1. Make up sentences to ask for permission and make polite requests. Homework Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 2025 Blues 2246.5305 2025 Blues 4440.825 2025 Blues 2011.4277 2025 Blues 3213.0652 2025 Blues 2768.9817 2025 Blues 2298.7756 2025 Blues 3291.4329 2025 Blues 3343.678 null 279451.28 $