Learning aims(学习目标)：1.Grasp the language points in reading part.
Important points(学习重点):1.Grasp the usage of some important words.2.Analyse the structures of some difficult sentences.
Difficult points（学习难点）:1.Difficult sentences 2.verbing-form as an adjective or adverb
Learning guides（方法导引）: Explain, discuss and do exercises
Ask students to answer some questions about reading part.
Step two: Dealing with important words.
1.Today’s debate question is“The economy or the environment----must we choose?”