Objectives: Students will be able to 1. understand the main idea(Teenagers'idleness and ignorance will seriously affect themselves and society in general)and structure of the text (two parts the author's concern and his proposed remedy) 2. learn the way to write a cause-and-effect analysis 3. grasp the key language points and grammatical structures in the text 4. conduct a series of listening, speaking and writing activities centered on the theme of the unit◼ Objectives: Students will be able to 1. understand the main idea (Teenagers’ idleness and ignorance will seriously affect themselves and society in general) and structure of the text (two parts—the author’s concern and his proposed remedy) ; 2. learn the way to write a cause-and-effect analysis; 3. grasp the key language points and grammatical structures in the text; 4. conduct a series of listening, speaking and writing activities centered on the theme of the unit