Unit 2 Grammar Focus 课件2025-2026学年人教版（2024）英语八年级上册

Match the two parts to make sentences. 1. A fish 2. A duck 3. A parrot 4. A dog 5. A cat B C A B C D D E A. can speak B. can fly C. can swim D. can run fast E. can climb trees We can talk about abilities using can. Match and read C 2 情态动词can的用法 ✎ can 表示能力,意为“能、会” eg: He can play the guitar. Who can answer the question? ✎ can 表示请求、允许,意为“可以” eg: You can go home now. You can't park here. It's a no parking zone. ✎ 表示请求、邀请,有时用could,表示语气更委婉。 eg: -Could/Can I use your pen? -Of course you can. (1) Can I hang out with my friends? (2) Could you please sweep the floor? (3) Can I borrow your pen? (4) Could you help me with the housework? can could make polite requests ask for permission Think and say Can vs. Could Challenge 4 Read and write 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 R P P How do you know that? Could I ... Can I ... Could you ... Can you ... make polite requests ask for permission Think and choose How to make requests and ask for permission? 表示“请求”，委婉地请求别人做某事 常用句型：Can/Could you (please) + 动词原形+ 其他? 表示“请求许可”，委婉地请求别人允许自己做某事 常用句型：Can/Could I + 动词原形+ 其他? 否定句型：Can/Could you (please) not do sth? Can/Could you please..? “请你···好吗?”/“你能/可以···吗?”, 用于提出要求或请求。常用答语有： 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。 How to respond to requests questions? Can/Could I...? “我能···吗?”，用于请求对方允许自己做某事。常用的答语有： 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。 How to respond to permission questions? 1.对提出请求或征询许可的句型做否定回答时，通常以sorry或I’m sorry开头。 eg: — Could you help me with my English now? — I’m sorry, but I have a football match ten minutes later. 2.如果问句中使用could，回答时要用can或can’t, 不能用could或couldn’t。 eg: — Could I use your bike?      — Sure, you can. 注 意 A: ____________________________________ B: Of course you can. Let me show you the way. A: ___________________________________ B: No, you can’t. You have a basketball game tomorrow, remember? You need a good rest. A: ____________________________ B: Yes, if you are careful with it. A: Can I go to the movies? B: Of course. A: ______________________________ B: I can’t. I have to do some work now. 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? 3b Choose and complete (1) You are at your friend’s home. You want to call your parents, but your phone is dead. 　 A: Can / Could I use your phone?　B: Sure. / Of course. (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. 　 _______________________________________________________ Read and make up Make up conversations for each setting, using can or could. A: Could I borrow/use your English class notes? B: Sure. 3c (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. 　 _____________________________________________________ Read and make up 3c Make up conversations for each setting, using can or could. A: Could you please help me open the door/carry the box? B: Of course. A: Can/Could everyone bring gloves and rubbish bags tomorrow? B: No problem. Make up conversations for each setting, using can or could. $