to master the new words, phrases and expressions. 《重点难点》 how to make students understand and master all the words and phases and use them properly. make students remember all the important contents including some sentence structures. 《学习内容》 1. injure ★观察例句： 1） i was seriously injured in the plane crash.我在那次飞机坠毁事故中严重受伤。
