tornado A rotating column of air from a thunderstorm to the ground. flood hurricane tidal wave lightning A flash of light during a thunderstorm sandstorm Let’s talk about sandstorms. 1. What are sandstorms ? 2. Where are major sandstorms in China? They are strong, dry winds that carry sand. Gansu province, western and northeast Inner Mongolia. 世界四大沙尘暴多发区 世界上共有四大沙尘暴多发区,它们分别是: 北美(美国西部和墨西哥的北部)、 澳大利亚、 中亚(亚洲中部的五个国家)、 中非地区(非洲撒哈拉沙漠南缘地区)。 3. How will a sandstorm influence us? It’s dangerous to go out. People have to wear masks. It delays the flights. Cars slow down because of it.
