Unit 2 Home Sweet Home Section A(Grammar Focus) 课件2026-2027学年 初中英语人教版八年级上册

该初中英语课件聚焦情态动词can与could表请求、许可的用法，通过“Look and say!”对比“想要借东西”的直接表达与礼貌表达，搭建从生活场景到语法规则的学习支架，引导学生感知语气差异并逐步掌握句型结构。 其亮点在于以核心素养为导向，语言能力上通过表格梳理句型、应答方式及使用场景，思维品质上设计分层观察任务（如3a标记请求或许可）启发自主总结规则，学习能力上指导观察对比、记笔记等方法。多元情境操练（如3c编对话）助学生灵活运用，既提升语言应用能力，也为教师提供系统教学资源，提高课堂效率。

UNIT 2 Home Sweet Home Section A What can you do for your home? Grammar Focus 在全国范围内进行选拔， 大量精英或高水平选手参与，受众广泛 选拔精英 B 学习能力 引导学生结合课堂学习任务，选用适配的学习方法，例如观察对比句式、整理语法笔记、背诵核心句型等，养成良好学习习惯。 教学目标 在全国范围内进行选拔， 大量精英或高水平选手参与，受众广泛 选拔精英 A 语言能力 熟练掌握用于礼貌提出请求、征求许可的核心句型；理解情态动词 can 与 could 的用法，分清二者语气差异与使用场景。 在全国范围内进行选拔， 大量精英或高水平选手参与，受众广泛 选拔精英 C 思维品质 借助例句观察、中英互译练习，锻炼学生独立分析能力与发散思维，主动总结语法规律，实现从被动听讲转变为自主探究式学习。 在全国范围内进行选拔， 大量精英或高水平选手参与，受众广泛 选拔精英 D 文化意识 教会学生在生活场景中规范、礼貌地提出请求，同时掌握同意、委婉拒绝等标准应答句式，完成完整的情景对话交流。 在全国范围内进行选拔， 大量精英或高水平选手参与，受众广泛 选拔精英 B 难点 设计分层观察任务，启发学生自主总结语法规则，持续锻炼独立思考与发散思维；创设多元生活化情景开展对话操练，帮助学生深度记忆语法句型，做到灵活运用、长久巩固。 教学重难点 在全国范围内进行选拔， 大量精英或高水平选手参与，受众广泛 选拔精英 A 重点 依托语法表格梳理、归纳 can/could 表请求与许可的句型结构，熟练区分使用场景；指导学生结合自身学习现状，灵活运用观察、记笔记、背诵等高效学习策略。 01 Warming up 01 Look and say! Which one do you think is more polite? I want to borrow your markers, Miss Lee. Can / Could I borrow your markers, Miss Lee? 01 Look and say! Which one do you think is more polite? Can / Could I borrow your markers, Miss Lee? — more polite I want to borrow your markers, Miss Lee. — less polite 02 Grammar Focus 02 Grammar Focus 3a 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? OK, Mum. 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! 02 Grammar Focus 3a 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? OK, Mum. 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! R P R P Pay attention to the circled words. 02 Grammar Focus Let’s summarize! 提出要求 Can you help me sort out the books? 你能帮我整理一下这些书吗？ Could you please add some fruit to the plate? 麻烦你往盘子里放一些水果好吗？ 用于请求别人做某事 02 Grammar Focus Let’s summarize! 请求允许 Can I plan a treasure hunt in the yard? 我可以在院子里策划一场寻宝游戏吗？ Could I go shopping to buy some biscuits this afternoon? 我今天下午能去超市买点饼干吗？ 用于请求别人允许自己做某事 02 情态动词can，could表示请求、许可 情态动词 can 和 could 可用于向对方提出请求或请求对方的许可，用于疑问句中，could 要比 can 语气委婉、有礼貌。其答语没有固定的形式，但要符合上下文的语境。 02 情态动词can，could表示请求、许可 1.表示委婉地请求别人做某事 常用句型：Can/Could you (please) do sth? 肯定答语：Yes, sure./Yes, I can./Of course, I can./No problem./With pleasure. 否定答语：（先拒绝，再说明理由）Sorry, I can't. I have to.../Sorry, I'm going to.../I'm afraid I can't. I have to... ——Could you please clean up the bedroom?能麻烦你打扫一下卧室吗？ ——Yes, sure.当然可以。 —— Can you help me plan a treasure hunt?你能帮我策划一场寻宝游戏吗？ ——Sorry, I can’t. I have to sort my clothes.抱歉不行，我得整理我的衣服。 02 情态动词can，could表示请求、许可 2.表示委婉地请求别人允许自己做某事 常用句型：Can/Could I do sth? 肯定答语：Yes, you can./Yes, please.等 否定答语：Sorry, you can't. /I'm afraid you can't.(然后说明理由)等 ——Can I use your pen?我能用一下你的钢笔吗？ ——Yes, you can.当然可以。 ——Can I play games now?我现在能玩游戏吗？ ——Sorry, you can't. You have to finish your homework first.不好意思，不行。你得先写完作业。 02 情态动词can，could表示请求、许可 3.“Could you please do sth?”的否定形式 其否定形式为Could you please not do sth?，表示委婉地批评对方，意为“请不要做某事好吗?”。 ——Could you please not draw on the wall?请你别在墙上画画好吗？ ——Sorry, I won’t do it again.对不起，我不会再这样做了。 ——Could you please not make so much noise?能不能请你不要弄出这么大噪音？ ——OK, I’ll be quiet right away.好的，我马上安静下来。 ——Could you please not throw rubbish everywhere?请你不要到处乱扔垃圾好吗？ ——My bad, I’ll pick it up at once.不好意思，我马上捡起来。 02 情态动词can，could表示请求、许可 4.拓展 （1）can和could可表示能力，意为“会，能”，其否定形式分别为can't和couldn't，意为“不能，不会”。 She can’t speak French.她不会说法语。 He couldn’t finish the work yesterday.他昨天没能完成这项工作。 （2）can 和 could 都可表示建议，意为“可以” You can try this new book.你可以读一读这本新书。 You could ask your teacher for help.你可以向你的老师求助。 02 情态动词can，could表示请求、许可 4.拓展 （3）can和could都可表示推测，can常用于否定句中，can’t表示“不可能”；而could常表示把握性不大的推测，表示“可能”。 That can’t be Lucy. She’s at home now.那不可能是露西，她现在在家。 The light is off. He can’t be in the office.灯是关着的，他不可能在办公室里。 It could rain this afternoon.今天下午可能会下雨。 This could be her new pen.这或许是她的新钢笔。 02 Practice 3b 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, can I use your toilet? D. Could I use your computer? 1.A: ______________________________ B: Of course you can. Let me show you the way. 2.A: ______________________________ B: Yes, if you are careful with it. C. Mr Lake, can I use your toilet? D. Could I use your computer? 02 Practice 3b 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, can I use your toilet? D. Could I use your computer? 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. B. Can I stay out until eleven? A. Could you give me a ride to town now? 02 Practice 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. A: Can / Could I borrow your notes? B: Of course. Here are my notes. 02 Practice 3c Make up conversations for each setting, using can or could. 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. ____________________________________________________________________ ____________________________________________________________________ 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. 03 Language points 03 Language points 1. Yes, if you are careful with it.可以，如果你当心的话。 be careful with 注意；当心 Be careful with the glass. It’s easy to break.小心玻璃杯，它很容易碎。 be careful (not) to do sth 当心/注意(不要)做某事 Be careful to lock the door before you leave.离开前记得锁好门。 Be careful not to fall off the bike.小心别从自行车上摔下来。 be careful that+从句 当心…… Be careful that you don’t miss the early bus.当心别错过早班车。 Be careful that no one sees your secret diary.当心别让别人看到你的秘密日记本。 03 Language points 2. Your friend went to an English class and took notes.你的朋友去上英语课了，并且做了笔记。 note：①〔可数名词〕笔记；记录；便条 take notes = make notes = write notes 做笔记；做记录 Please take notes carefully in English class.请在英语课上认真做笔记。 ②〔及物动词〕注意；指出 note down 记录；记下 The teacher noted that grammar is very important.老师指出语法十分重要。 Note down all new words in your notebook.把所有生词记在你的笔记本上。 03 Language points 3. Ask your classmates to bring gloves and rubbish bags.让你的同学们带上手套和垃圾袋。 ask sb to do sth 要求/请求某人做某事 其中 sb 作 ask 的宾语，动词不定式 to do 作宾语补足语。其否定形式为 ask sb not to do sth，意为“要求/请求某人不要做某事”。 My teacher asks us to finish homework on time.老师要求我们按时完成作业。 Could you ask him to open the window?你能叫他把窗户打开吗？ Mom asks me not to play computer games for too long.妈妈不让我长时间玩电脑游戏。 04 Exercises 04 单选题。 1．—________ you help me carry the box? —Sure, no problem. A．Must B．Should C．Can D．Need 2．—Can you go to the movies with me tonight? —Sorry, I ________. I have to finish my homework first. A．can’t B．mustn’t C．needn’t D．shouldn’t 3．—Can I listen to music in class? —No, you ________. A．can’t B．can C．have to D．don’t have to 4．—________ I use your phone? I want to call my mom. — Of course. A．Should B．Could C．Must D．Need 04 完成句子。 1．——我可以借你的橡皮吗？——没问题，给你。 —Can I borrow your eraser? —________ ________. Here you are. 2．上课记笔记是一种好的学习习惯。 ________ ________ in class is a good learning habit. 3．我们应该每天打扫教室。 We should ________ ________ the classroom every day. 4．我午饭后可以和朋友一起闲逛吗？ ________ I ________ out with my friends after lunch? No problem Taking notes clean up Could hang 05 Summary 05 Summary Grammar Focus 情态动词can，could表示请求、许可： 情态动词 can 和 could 可用于向对方提出请求或请求对方的许可，用于疑问句中，could 要比 can 语气委婉、有礼貌。其答语没有固定的形式，但要符合上下文的语境。 06 Homework 06 Homework 1. Make five sentences for this grammar point we learned today and add Chinese translations. 2. Preview the next lesson. SEE YOU NEXT CLASS! $