教学目标：Aims:
1. To discover and activate any background of the topic “Look it up ” 了解本课的背景知识
2. To increase knowledge and develop skills.拓宽知识，发展技能
3. To motivate the students’ interest of learning English.激发学生学习英语的兴趣
教学重点和难点:
Important and difficult points:
To enable the students to get a general idea of what the text is about.
了解本课大意
教学设备：多媒体课件Teaching aids: multi- media
教学过程：Teaching procedure:
