learning aims: name__________ 1. to master the important usages of the key words and expressions. 2. to learn to use the structure properly. important and difficult point: to master the usage of of the key words and expressions. 《使用说明及学法指导》自学《同步测练》p language points, 完成预习案。(30分钟) 预习案previewing case task 1 词性拓展 surroundings n.→ adj._______________ uncertain a →n.____________；（反）______________ guide v. → n._________________ surrounding n. →v.______________________
