【学习目标】
Enable the students to learn something about AIDS and HIV.
【重点难点】
How to help the students to get the information about AIDS and HIV.
【学习内容】
◆ 课前预习
I. some information
1. The three biggest killers in the world :
Heart disease, Cancer and AIDS
2. AIDS stands for Acquired Immune Deficiency Syndrome.
(获得性免疫缺陷综合征)
