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选修8《Lesson 3 Natural Disasters》最新PPT课件优质课下载
3.separation n. the condition of being separated
4.rough adj. unpleasant or difficult
5.mountainous adj. having many mountains
Word Review
巨大的
规模，大小
分离，分开
艰难的
多山的
6.slip v. fall off
7.slide v. to move smoothly over a surface
8.landslide n. sudden fall of a lot of earth or rocks
down a hill, cliff
9.shabby adj. old and in bad condition
10.construct v. build
Word Review
滑落
滑行
滑坡，山崩
破烂的
建造
Warm Up
Definition
Natural disaster is the consequence of a natural hazard, such as floods, droughts, mud-rock flows, seismic sea waves, earthquakes, windstorms and the stretching of new deserts which affects human activities .
自然灾害是影响人类活动自然风险，例如洪水，干旱、泥石流、海啸、地震，风暴和沙尘暴。