第一课：Rock Superstars: What Do They Tell Us about Ourselves and Our Society1、章节知识点1) 背景知识（Background knowledge）Rock Music2) 课文要义（Main idea of the text）The author focuses on the social influences of the rock music in terms of sociology. By contrasting different attitudes toward the rock among the young and adult audience, the author points out that rock is served as an expression of social ideas, and also provides a debating stage for different ideas. Rock n roll stars express the young
