1. grasp 7 important words ,5 phrases and 5 sentence patterns in the two units and improve your ability to express yourself in english. 2. learn the method of constructing knowledge trees through self-study and cooperative exploration. 3. enjoy the beauty of english with a strong passion. 《知识体系构建》 1. compare vt. → 名词__________________ 两个常用短语：① _________________________
