1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
阅读下列句子，观察问句的用法及回答。
Grammar Focus
1. Make requests.(委婉地获取许可)
（1）肯定回答：Yes, sure./ Of course ./ Certainly. / All right. / No problem.
Could I / we（please）do .... ？
（2）否定回答：
Sorry, you can’t. You ...
Could I go out for dinner with my friends?
Could we get something to drink after the movie?
2. Ask for permisson (表示委婉地提出请求)
Could you（please） do ....？
（1）肯定回答：Yes, sure. / Of course./ Certainly. / All right.
（2）否定回答：Sorry, I can’t. I have to do ...
Could you please take out the rubbish?
Could you do the dishes after dinner?
(2) Can you do the dishes?
—Sorry, I can’t. I have to do my homework.
(1) Peter, could you please take out the rubbish?
—Sure, Mom.
Let's compare!
在表示请求帮助或获取许可的疑问句中，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。
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.
A: could you please ……?
B: Yes, sure. (certainly / of course / No problem)
sorry , I can't . I have to ....
sweep the floor
make the bed
do the dishes