Teaching aims:
1. Know some basic knowledge about health problem---smoking.
2. Learn how to stop smoking.
3. Practice some reading skills: analyzing the main ideas; scanning
课前预习案
1. New words::
1._______n. 压力 2.______________青少年 3._______禁止
4.______对……有瘾 5.__________ 由于，归因6.________ 习惯于
