Unit 2 Section A Grammar Focus(3a-3c) 课件 2025-2026学年人教版（2024）英语八年级上册

Unit 2 Home Sweet Home 人教版(2024)八年级上册 Section A Grammar Focus(3a-3c) Learning objectives 掌握用 "Can/Could you...?" 提出请求和 "Can/Could I...?" 请求许可的句型结构,理解两者在语气和使用场景上的区别。 学会对请求和许可做出恰当回应(如肯定回答 "Sure./No problem." 或否定回答 "Sorry, I can't...")。 能在实际场景中(如求助、借物品等)灵活运用上述句型进行礼貌交流。 Lead in 1.请大家马上戴上耳罩可以吗? _ please put earmuffs on right away? 2. 请你帮我传话给他们可以吗? _ please give them a message for me? 3. 请把门后的钥匙拿给我。 _please get the key off the back of the door for me? 4.我要纸巾。 _ have a napkin? Could you Could you Could you Could I polite requests polite requests for permission Which sentences are polite requests for permission? Which sentences are polite requests? Review and share hang out with friends after lunch sort things into boxes keep some fish take care of them every day help me hang up the photos grow some flowers sweep the floor invite friends to our new house help me clean up the room help put the new clock on the wall move this chair to their room put some flowers by the window take me to the flower shop later Do you still remember how they start the conversation? Can / Could I do …? Can / Could you (please) do …? Ask for permission. (征求许可) Make polite requests.(礼貌地请求) Play a game Did you help your parents do housework yesterday? If you did this thing, please stand up. If no, you can sit down. How did your parents tell you to do housework? Did you ask your friends for help yesterday? How did you ask for help? Polite impolite How do you feel about these words? 3a Read the questions with can or could . Notice how they are answered. 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 Write R for requests or P for permission next to each question. P P R Presentation 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 What are they doing? Happy Holiday 1 UNIT H Review Grammar Focus 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! 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. R R P P more politely How do we distinguish between”could”and “can”? answer Presentation 表示“请求”委婉的请求别人做事 常用句型:Can/Could you (please) +动词原形+其他? 表示“请求许可”委婉的请求别人允许自己做某事 常用句型:Can/Could I + 动词原形+其他? How to ask for request and permission? 否定句型:Can/Could you (please) not do sth.? Read the sentences. Find out the usage of can/could. 情态动词 can & could 的用法 情态动词can和could可用于向对方提出请求,也可用于请求对方允许自己做某事。它本身不能作谓语,必须和动词原形一起构成谓语。 1. 用于提出要求或请求 Can/Could you please...?(重点) 2. 用于请求许可 Can/Could I...?(重点) 3. 用于表示能力 can表示现在的能力,could表示过去的能力 Presentation modal verb:could and can 情态动词can 和 could 可用于向对方提出请求,也可用于请求对方允许自己做某事。 它本身不能作谓语,必须和动词原形一起构成谓语。 01 02 03 用于提出要求或请求 用于请求许可 用于表示能力 Can/Could you (not)please..? Can/Could I(not)...? can:现在的能力 could:过去的能力 情态动词can和could用法 情态动词can和could可用于向对方提出请求,也可用于请求对方允许自己做某事。意为“可以,能”。 它本身不能作谓语,必须和动词原形一起构成谓语。 1. 用于提出要求或请求 Can/Could you please do ...? 请你……好吗?或你能/可以……吗?”, 用于提出要求或请求。 常用答语有: 01 表示请求 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?” 2.请求 允许 03 表示能力 表示现在的能力用can 表示过去的能力用could 此时could 是can 的过去式 example My sister can swim. 我的妹妹会游泳。 He couldn't answer the question at that time. 他当时不能回答那个问题。 Presentation 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! Write R for requests or P for permission next to each question. R P P R Notice how they are answered. Presentation 表示“请求”委婉的请求别人做事 肯定回答:Sure./ Yes, I can./ Of course, I can./ No problem./ With pleasure. 表示“请求许可”委婉的请求别人允许自己做某事 How to answer request and permission? 否定回答:Sorry, I can’t. I have to…/ I’m afraid I can’t…,I’m going to … 肯定回答:Sure./ Yes, you can./ Of course, you can. 否定回答:Sorry, you can’t. I have to…/ I’m afraid you can’t. Complete the sentences according to the pictures and key words. If your mom want you to... take the dog for a walk _ take the dog for a walk? Could you please OK, _ I want to watch one show first. but If your mom want you to... take out the rubbish _ take out the rubbish? Could you please Yes, sure/_. No problem Exercises Complete the sentences according to the pictures and key words. If you want to... go out for dinner with your friends _ go out for dinner with my friends? Could I _, that should be OK. Sure If you want to... get something to drink after the movie _ get something to drink after the movie? Could we Sorry/No, you _. You have a basketball game tomorrow. can’t Could I hang out with my friends tonight? No, you couldn’t. Sorry, you can’t. Choose the answer. 在回答用could 提出的请求时,通常不用 could而用 can。 Choose the best question to complete each conversation. Practice 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 D B A 3b Practice activity 3b 3b Choose the best question to complete each conversation. A.Could you give me a ride to town now? C.Mr Lake,can l use your toilet? B.Can I stay out until eleven? D.Could l use your computer? 3. A: B:No,you can't.You have a basketball game tomorrow, remember?You need a good rest. 1. A: B:Of course you can.Let me show you the way. 2. A: B:Yes,if you are careful with it. 4. A:Can I go to the movies? B: Of course. A: B:I can't.I have to do some work now. 载我一程 待在外面 adv.直到 C D B A 小心 去电影院 Language points until prep.到......时;直到......为止 讲 练 They didn't have a car until last year. You will never truly understand your parents' great love until you grow up. 例 Mr. Peter _ go to bed _ he finished his work last night. A. wasn’t; until B. don’t; until C. didn’t; until D. isn’t; until C until 到 时;直到 为止 常与延续性动词连用,引导时间状语从句,表示动作直到until所表示的时间才结束 not…until 直到......才.... 常与非延续性动词连用,表示动作 直到until所表示的时间才发生 词 be careful with 注意;当心 词 讲 练 Be careful with the knife while cooking, and don't cut your fingers. Be careful not to wake the baby. Be careful — the floor is slippery. 例 当你切碎西红柿时,当心你的手指。 When you cut up the tomatoes, please _ your fingers. be careful with be careful (not) to do sth. “小心(不要)做某事”。 be careful 可单独使用,表示“小心,当心”,相当于look out 或watch out。 Practice 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 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 classmate to bring gloves and rubbish bags. A: Can/ Could I use your phone? B: Sure./ Of course Group work Plan the cleaning activity for our class and talk with classmates about jobs. Planner: “We can clean the front rows first. Could someone check if we have enough cleaning cloths?” Communicator: Sure, we need some cleaning clothes. Could I borrow your cleaning clothes? Communicator: Of, course. Here you are. Checklist Items Questions for assessment Grammar Use (questions) Use “can/ could” for polite requests. Use “can/ could” for permissions. Grammar Use (answers) Use “can/ could” to answer. Presentation Do you speak fluently/loudly? Do you have eye contact with 1. Poor Jim! His phone went _ (die) in the middle of an important meeting! 2. I like to take _ (note) when I am reading books. 3. There are many _ (community) in the city. 4. Can he _ (run) as fast as Bob? 5. The bowls are expensive, please be _ (care) with them. 6. My pet dog’s _ (dead) made me sad. 7. I would like _ (invite) my classmates to my party. 8.一Can you go to the _ (movie) with me tomorrow? —Sorry, I can’t. I have to study for a test. 一、语法填空。 dead notes communities run careful death to invite movies 二、按要求完成下列句子(每空一词)。 1. He can fix the bike hIMself. (改为一般疑问句) _ she _ the bike himself? 2. —NiLe, could you lend me your dictionary? (作肯定回答) —_ _. Here you are. 3. —Excuse me, could I open the door? (作肯定回答) —Yes, _ _. 4. She could solve the problem. (对画线部分提问) _ _ he _? 5. Lily was able to ride a bike at four. (改为同义句) Lily _ _ a bike at four. Yes sure you can /of course What could s do could ride Can fix Homework Homework 基础作业 提升作业 拓展作业 Summarize the key grammar points of this lesson. Interview three people how to make polite requests and permision. Make a poster about modal verb”could”and “can”. SEE YOU NEXT CLASS! Lavf58.51.100 $