1．a strong sandstorm 强沙尘暴
2．tropical storms 热带风暴
3．a violent tornado 猛烈的龙卷风
4．tornado warnings 龙卷风警报
5．volcanic ash 火山灰
6．dirty weather坏天气
7．extreme weather 极端天气
8．shelters for survivors 幸存者的避难所
9．prevention and control 防控
10．at the mercy of wind and rain 任凭风雨摆布
11．have much to do with 与……有关
12．abnormal climates 不正常的气候
13．random deforestation 随意砍伐森林
14．wipe out land 冲毁土地
15．leave everything in ruins 使一切成为废墟
