本单元知识结构 　　短语: do the dishes, make the bed, take out the rubbish, fold the clothes, sweep the floor, clean the living room ......

　　句子:

　　 1. Could you please take out the rubbish?

　　. Sure. / Sorry, I can't. I have to finish homework first.

2. Could I use your computer?

　　　Sorry. I'm going to work on it now.

　　3. Well, could I watch TV?

Yes, you can. But first you have to clean your room