写出几个描写不同“笑”的词语。
微笑 苦笑 欢笑 嫣然 莞尔 前仰后合 喜上眉梢（答案不唯一）
句型转换。
1. What else did you do? (改为同义句)
_____ _____ _____ did you do?
2. What do you think of the book? (改为同义句)
_____ do you_____ - the book?
3.Must I practice reading English every day?(作肯定回答和否定回答)
Yes, _____ _____ ,/No,_____ _____.
4. My mother is sick. (改为同义句)
My mother is _____
5. Don't worry about her. (改为同义句)
Don't _____ _____ about her.
6. Thank you very much.(改为同义句)
Thank you_____ _____.
下面设备中不使用CCD（电荷耦合器件）的设备是（）。
A.数码相机
B.数码摄像机
C.扫描仪
D.显示器
