学习目标、学习重点：
1 重点单词： ho use, drink, tea, tomorrow
2 重点短语： clean the house, make dinner, drink tea, tomorrow evening
3 重点句型：①What are you doing?----I’m watching TV.
②---Are you doing your homework?
---Yes, I am. /No，I'm not. I'm cleaning my room.
③---Is he reading a newspaper? Yes, he is. /No, he isn't. He’s playing basketball.
④---Are they using the computer?
