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高一英语必修module 4课件(新人教版)
Let’s talk about sandstorms.
1. What are sandstorms ?
2. Where are major sandstorms in China?
Gansu province, western and northeast Inner Mongolia.
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.
4. What do you think is the cause of sandstorms?
1. Serious air and water pollution.
2. Cutting down too many trees.
3. Desertification.
4. The growing population of the world.
5. Climate changes.
6. Waste in the use of water.
7. High temperature and little rain.
5. How can we prevent sandstorms?
1. Control water and air pollution.
2. Build green fences along the desert.
3. Forecast sandstorm’s time to prevent disaster.
高中英语课件 高中英语教案 高一英语课件下册