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1、tornadohurricaneNatural Disastersearthquakesandstormlightningvolcanic eruptionModule 4 Sandstorms in AsiaBCDANorth AmericaCentral AfricaAustralia Central AsiaBCAInner Mongolia GansuXinjiangFast reading:1. What are sandstorms?2. What are the places where sandstorms often occur in the world?3. What is
2、 desertification?4. Why do people wear masks in a sandstorm?5. What is the Beijing government doing to prevent the desert from coming nearer? Further reading:Complete these sentences:1. Weather experts have f_ another big sandstorm in a weeks time.2. Its f_ to be outside in a sandstorm.3. I was in a
3、 very big sandstorm some years ago. Luckily, everyone s_.4. Theres a lot of d_ on the floor. We need to sweep it away.5. Desertification is a long p_ that takes many years.6. Many Beijing c_ cycle to work.orcast(ed)righteningurvivedustrocessitizens dirty, breathe, mask, cycling, traffic, etc.Questio
4、n: How do sandstorms affect peoples life Discussion: What measures should we take to prevent sandstorms coming?Homework:1. Find more information about sandstorms on the internet or other books and write a short passage about sandstorms. 2. Design a poster that encourages people to protect the environment.