learning aims: learning about some information of future life important point: to grasp some important and useful words, expressions and sentence patterns. difficult point: to improve the skills of reading. 使用说明及学法指导：1. 通过阅读课本p22及查阅unit3单词表和字典，完成预习案。(30mins) 预习案 previewing case task 1. 词性拓展。 invent v. →n.___________ __________ exhibit v. →n.________________ imitate v. →n.________________ representative n. →v._________________ motivation n. →v.________________ greedy a. →n._____________________
