(
课件网) Unit 2 Home Sweet Home UNIT 2 Can / Could for polite requests and permission 梳理和归纳can/could表示提出请求和许可的构成形式、表意功能和用法。 结合语境，正确使用can/could表示提出请求和许可，询问或描述身边正在发生的事情。 until prep. 到……时；直到……为止 until用于肯定句中时，作介词，表示句子的动作一直持续到until短语所表示的时间为止。 She stayed in bed until lunchtime. dead adj. 不运行的；死的 My phone is dead. 我的手机死机啦。 note n. 笔记；记录；便条 v. 注意；指出 take notes 做笔记 The teacher asked us to note the new words in the text. 老师让我们注意课文中的新单词。 rubbish n. 垃圾 rubbish bins 垃圾桶 throw rubbish 扔垃圾 pick up rubbish 捡起垃圾 读下面的句子，归纳情态动词can/could的用法。 Can you speak English 你会说英语吗？ 能力 2. A: Can I put some flowers on the table 我能在桌上摆些花吗？ B: Yes, of course you can. 可以，当然可以。 3. Can you help me hang up the photos 你能帮我把这些照片挂起来吗？ 请求允许 提出请求 表示许可 1.表示能力（Ability） can 表示现在或将来的能力。 e.g. I can help you tomorrow. 我明天可以帮你。 2. 表示请求（Requests） can（非正式）和 could（更礼貌）用于请求许可或帮助。 e.g. Can you open the window （非正式） Could you please pass me the salt （更礼貌） 3.表示许可（Permission） can（非正式）和 could（更正式/委婉）用于请求或给予许可。 e.g. You can leave early today.（允许） 4. 表示建议（Suggestions） e.g. We could go to the cinema tonight. 我们今晚可以去看电影。 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! 1. 看句子开头 如果是 Can/Could you... → 通常是请求R（请别人做某事） 如果是 Can/Could I... → 通常是许可P（询问自己是否能做某事） 2. 看回答内容 如果回答是Yes, I will. / Sure! → 通常是请求R 如果回答是允许/禁止某个行为Yes, you can. / No, you can’t. → 通常是许可P 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! R P R P 情态动词can和could都可用于表示能力、提出请求和许可等。 用法 can（现在/未来） could（过去/委婉） 能力 She can swim. She could swim as a child. 请求 Can you help Could you help （更礼貌） 许可 Can I go Could I go （更正式） Choose the best question to complete each conversation. A: _____ B: Of course you can. 2. A:_____ B:Yes, if you are careful with it. C D 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. B A Make up conversa ... ...
