1. grasp the important words and phrases in the two units and improve your ability to express yourself in english. 2. learn the method of making free use of the knowledge through self-study and cooperative exploration. 3. enjoy the beauty of english with a strong passion. 《知识体系构建》 1. mean vt. 请你列出mean的三个重点用法: ________________ _______________ _____________________ 2. 请你用devote的分词形式作状语造一个句子: ______________________________________________________________________