Period 3 Section A 3 (Grammar focus-4c)

一、教学目标：

1知识与技能：

1）重点单词和词组 2）使用could 做出礼貌要求和请求许可。

2.过程与方法：通过合作探究的方法结局本课的重点知识点

3.情感态度与价值：学会照顾自己，培养自己的独立意识。

二、教学重难点：

1.教学重点：谈论做家务的词汇，情态动词could的使用方法。

2.教学难点：灵活运用礼貌的方式表达请求和允许

三、教学过程：

Step 1 Revision根据所学内容，写出下列短语。

fold one’s clothes, do the dishes, use one’s 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

Step 2 Presentation 阅读下列句子，观察问句的用法及回答。(p20)

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 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.
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 can’t. 等。 

Step 4 Practice

1.Make 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.

2.4a Write R for requests and P for permission. Then match each one with the correct response.

 3.4b  Fill in the blanks in the conversation.

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.

Teaching thought: