Unit 4 Earthquake学案

module 1 unit 4 earthquake   （introduction & vocabulary）
 
学习目标：本单元共53个词汇，熟练掌握35个，重点掌握14个。
自主学习，合作探究，熟记课标词汇。
学习词汇，阅读课文，了解在地震或突遇灾难中如何自救、救人等。
introduction：
natural disasters occur throughout the world, and china, as you probably know, has a particular problem with earthquakes. in the last century five of the ten worst earthquakes happened in china. although it is important for us students to understand the dangers people face in a quake, it is just as important for us to realize that there are things that can be done to minimize(降低) the damage caused by quakes. for this reason, this unit keeps a positive tone or outlook(观点). it includes exercises and tasks that enable us to think about how to avoid earthquakes, or at least some of the damage they can cause. this unit also lets