(
课件网) 语法课 U2-3 Grammar Home Sweet Home Home Sweet Home Section A What can you do for your home？ 通过归纳法，引导学生进一步掌握表示提出请求与请求许可方面的句型； 掌握情态动词can和could的用法； 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。 Learning Objectives 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 P R Ask for request Ask for request Ask for permission Ask for permission 3a 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 （1）表示提出请求或请求许可时，could 和can都可以用，但could语气更委婉。 Could/Can I come in 我可以进来吗 （2）在回答用could 提出的请求时，通常不用 could而用 can。 —Could I use your pen 我可以用你的钢笔吗？ —Of course you can. 当然可以。 此处不能用could (3)用于表示能力: can could 表示现在的能力用can，表示过去的能力用could。can/could+v.原型; can/could无人称和数的变化 I can swim. I couldn’t swim when I was 7. 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 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 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 / n t l/ prep. 到……时；直到……为止 注意；当心 the mov ... ...
