1、Unit1 SectionA Grammar focus-4c 精品教案 Step 1 Revision 根据所学内容，写出下列短语。 fold ones clothes, do the dishes, use o nes computer, take out the rubbish make the bed, sweep the floor, stay out late, be angry with sb., take sb. for a walk clean the living room, work on, come over, do the housework, get a ride
2、Step 2 Presentation 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 pl
3、ease take out the rubbish? Yes, sure. Step 3 Grammar Could 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 d o 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，
4、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 cou
5、rse. (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. /Certa
6、inly.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. C
7、ould 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
8、答有 Sorry / No, you cant. 等。 Step 4 Practice Make up dialogues using the sentences in Grammar Focus with your partner. A: Could you please take the dog for a w alk? 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.
9、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 muc h do you need? c. Yes, sure. No problem. I finished readin
10、g 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. Note： borrow 和 lend borrow 和 lend 都有“借”的意思，但它们的含义和用法有所不同。 borrow 表示“借入”，即把本来不属于自己的东西借来暂时使用，常与介词 from 连用。如： You can borrow a book from the library. lend 表示“借出”，即把属于自己的东西借给别人暂时使用，常与介词
11、to 连用， 也可以跟双宾语。如： Hes going to lend his bike to Tom. You mustnt lend othe rs my pen 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?
12、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 If we are having a camping trip, what should we do before the trip? Step 6 Homework Write a letter to your friend to ask him/her to take care of your house when you are on vacation.
