unit 1 art period 3 grammar-subjunctive mood learning aims: 1. get to understand what subjunctive mood is and in what kind of conditions it can be used. 2. get to use subjunctive mood correctly and properly. important point: get to use subjunctive mood correctly and properly. learning guidance: 自学《同步测练》page 语法专讲，完成预习案。(20mins) 预习案previewing case 一、语气的分类
