Obi ctives a)grasp the main idea of the text b) appreciate the characteristics of a familiar essays c)master the key language points and grammatical structures in the text: d) conduct a series of reading, listening, speaking and writing activities related to the theme of the unit.Objectives a) grasp the main idea of the text; b) appreciate the characteristics of a familiar essay; c) master the key language points and grammatical structures in the text; d) conduct a series of reading, listening, speaking and writing activities related to the theme of the unit