英语人教版八年级下册grammar focus unit 3.docx

Section A 3 (Grammar focus-4c)教学目标 1. 重点词汇用法及短语动词 2. 继续学习如何用礼貌地征询许可及礼貌地提出要求。能力目标：能够利用Could I do ? 礼貌地征询许可，用Could you please do? 礼貌地提出要求。情感目标： 自然是无情的，但是邻里互助是大爱。教学重点和难点： Grammar Focus 的句子及用法 教学过程：Step 1 Lead in ( a surprise for students)Step 2 Presentation (read the sentences on P20 and find the rules in the sentences ) 阅读下列句子，观察问句的用法及回答)。Could I go out for dinner with my friends?Sure, that should be OK.Could we get something to drink after the movie?No, you cant. You have a basketball game tomorrow.Could you please take the dog for a walk?OK, but I want to watch one show first.Could you please take out the rubbish?Yes, sure.1. What are the same things in these sentences?2. What are the differences?3. How do we answer them?4. What are they used for ? (它们是用来干什么的？） 5. How about their tones? (它们的语气如何)6. Do you know other expressions? (其他的表达方式） Step 3 GrammarCould you（please）+ V-原形？表示委婉地提出请求1. Could you please clean your room? Yes, sure. / Of course./ Certainly./All right.2. Could you please do the dishes? Sorry, I cant. I have to do my homework.在表示请求帮助或请求允许的疑问句中，常用could代替can，以表示礼貌，委婉或不确定的语气，而can则不具备这些语气。这种情况下不能把could看作can的过去式。以上两句中用could是为了表示礼貌的请求。表示请求帮助或请求允许时，除了can, could之外，还可以用may，句子的表达方式也各有不同，可以用不同的方式来表示同一个概念。例： Could/Can/May I use your car for a day? I wonder if I could use your car for a day? 对于、句所作允答可以各种各样，如同意可以说Yes或Sure或Certainly，还可说Yes, (do) please. 或Of course. (you may/can). 或Go ahead, please. 或Thats OK/all right; 如果不同意，可以说Im sorry you cant. 或Im really sorry, but I have to use it today. 要避免说No, you cant. 这样显得很不礼貌。否定回答通常用委婉语气。 Do you mind if I use your car for a day? 对于句所作回答可以说Never mind. /Not at all. 表“不介意”。不能用Yes. /Sure. /Of course. /Certainly.等。无论肯定还是否定应答中，要避免使用could，要用can或may。因为应答须用确定的语气。而could在表请求的问句中是为了表示礼貌或委婉语气，用在应答中则成了不确定语气，与情理不符。所以应答中不说Yes, you could. 或No, you couldnt. 而要说Yes, you can. 或Sorry. /No, you cant. Could I please use your computer? Sorry, Im going to work on it now. Well, could I watch TV? Yes, you can. Could I/you please ？表示一种有礼貌的请求或提议，其后连接原形动词，比Can you /I？语气更委婉。类似句型有： Would you like + sth. / to do sth.? May I + do sth.? Shall we + do sth.? Would you mind + sth. /doing sth.? What / How about + sth. /doing sth.? 肯定回答有Sure. /Of course. / Certainly. /OK. /Great. / Well. / Good idea. / I agree. 等。否定回答有Sorry / No, you cant. 等。 Step 4 PracticeMake up dialogues using the sentences in Grammar Focus with your partner.A: Could you please take the dog for a walk?B: OK, but I want to watch one show first.4a Write R for requests and P for permission. Then match each one with the correct response. 1. _ Could I hang out with my friends after the movies? 出去玩2. _ Could you please pass me the salt? 3. _ Could I borrow that book?4. _ Could you help me do the dishes?5. _ Could you lend me some money?a. Yes, here you are. b. Hmm. How much do you need?c. Yes, sure. No problem. I finished reading it last night.d. Yes, but dont come back too late.e. No, I cant. I cut my finger and Im trying not to get it wet.exercise 2 Could I _ with my friends? ( go out ) Sure, that _. ( should be OK )_ we get something to drink after the movie? ( you cant )No, _ _. You have a basketball game tomorrow.Could you please _ _ _for a walk? ( take the dog )OK, but I _ _ watch one show first ( want to)4b Fill in the blanks in the conversation. A: I hate to _ chores.B: Well, I hate some chores too, but I like other chores.A: Really? Great! _ I ask you to _ me with some chores then? B: What do you need help with?A: _ you please _ my clothes for me?B: I dont want to do that! Its boring!A: OK. Then _ you _ do the dishes for me?B: Sure, no problem. But _ we go to the movies after that?A: Sure. Ill finish my homework while you help me with the dishes. Then we can go to the movies. Step 5 Discussion Group workIf we are having a camping trip, what should we do before the tr