SetionA3[名师原创].ppt

Unit 3;Unit 3;Section A 3;Revision;打扫客厅 在……上工作 过来 做家务 搭车;Could I go out for dinner with my friends?;; —Peter, could you please take out the trash? —Sure, Mom.  —Could you please do the dishes? —Sorry, I can’t. 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： ;① Could/Can/May I use your car for a day? ② I wonder if I could use your car for a day? 对于①、②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That’s OK/all right; 如果不同意，可以说I’m sorry you can’t. 或I’m really sorry, but I have to use it today. 要避免说No, you can’t. 这样显得很不礼貌。否定回答通常用委婉语气。;③ Do you mind if I use your car for a day? 对于句③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 couldn’t. 而要说Yes, you can. 或Sorry. /No, you can’t. ;—Could I please use your computer? —Sorry, I’m going to work on it now. —Well, could I watch TV? —Yes, you can.;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 can’t. 等。 ;Make up dialogues using the sentences in Grammar Focus with your partner.;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 don’t come back too late. e. No, I can’t. I cut my finger and I’m trying not to get it wet.;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 le