约240字。
　　《Adventure》教案Lesson3 Macro Polo
　　教案
　　Teaching aims:
　　1. To review relative clause
　　2. To pare and distinguish defining and non-defining clause
　　3. To practise defining words by their usage in context
　　4. To practise reading for specific information
　　Teaching important and difficult points:
　　To master the attributive clauses
　　Teaching aids: CAI
　　Teaching procedures:
　　Step1. Warm up
　　To look at the pictures and talt the Silk Road with students and teacher introduces some information the Silk Road to the students
　　There are two questions for students to talt: