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约400字。
　　Unit 2 The Environment
　　Word power---教案
　　Teaching aims 1. Enlarge Ss’vocabulary related to the environment.
　　2. Help Ss use the words about the environment as possible.
　　Teaching important points 1. How to learn the new words effectively.
　　2. How to use the new words freely.
　　Teaching difficult points 1. How to make Ss describe environmental problem briefly.
　　2. How to solve the environmental problems rapidly.
　　Teaching methods
　　1.Students-centered. (Discussion to make every student work in class.)
　　2.Teacher & students’interaction. (Talking to improve the students’speaking ability.)
　　3.Multimedia way. ( Practice to get the students to master what they’ve learnt.)
　　Teaching aids 1. The multimedia.
　　2. The blackboard.
　　Teaching procedures:
　　Step 1 Lead-in
　　1. Tell Ss that they will go traveling in Shangri La. What would they like to do?
　　2. Let Ss make a discussion.
　　Questions:
　　What are we interested in?