课件28张PPT。Welcome!earthquakefloodtornadohurricaneTidal wave/ tsunamiVolcanosandstormcyclist这张照片是3月17日由NASA(美国宇航局)的OrbView-2卫星拍摄的真彩色照片
。在照片上,沙尘已经越过黄海,到达了日本以东的太平洋上空。
事实上,这次10年以来中国北方最大的沙尘暴不仅仅影响了日本,
据美国国家海洋和大气局(NOAA)报告,这次的沙尘暴已经跨越
太平洋,于27日到达了美国西海岸! AsiaJapan America Fast
ReadingFind out two persons who have experienced the sandstorms in the passage.terrible
frightening
uncomfortable
dangerous
dirty
1. What are sandstorms ?
2. Where in the world are the four main sandstorm areas ?They are strong, dry winds that carry sand.Central Asia, North America, Central Africa and Australia.Read para1-2 carefully and answer questions.North AmericaCentral AfricaAustralia Central AsiaGansu Inner MongoliaXinjiangBeiJing
1 Have sandstorms in China increased
or decreased recently? Why?
2How do sandstorms affect citizens in Beijing? CHINA TODAY 2010-03-20 22:00.Read para3-4 carefully and answer questions.
Read para5-6 carefully and answer questions.What does expert advise people to do
when the sandstorm arrives?
What does the government do to
protect Beijing from sandstorms?The green movement What measures should we take to prevent sandstorms coming?1. Control water and air pollution.
2. Build green fences along the desert.
3. Forecast sandstorm’s time to prevent disaster.
4. All countries work together to make a plan to control and prevent sandstorms.DiscussionWrite a letter to china daily about sandstorms.You should explain the cause of it and what should we do to prevent sandstorms coming.SummaryIn this period you have learnt some vocabulary and you should try to keep them in mind.
After reading the test you get to know something about the sandstorms .You also have known the damage caused by sandstorms. So we should try our best to protect our living environment and work together to build a more beautiful China.Have you just experienced a sandstorm?Yes! It’s terrible!performance中国政府防治沙尘暴的四大对策
一、在北京北部的京津周边地区建立以植树造林为主的生态屏障;? 二、在内蒙古中西部地区推动以退耕还林为中心的生态保护带。坚决贯彻退耕还林还草、严禁过度放牧,重点恢复和保护草地资源;? 三、在河套地区和沙化土地地区以保护水资源和天然绿洲为中心,控制沙化土地扩大,保住天然绿洲,逐步扩大人工林;? 四、蒙古国南部荒漠地区长期影响我国的主要沙尘暴源区,因此应尽快建立一个与蒙古国长期合作防治沙尘暴的计划框架。? The day before yesterdayYesterdayTodayHomework:
请根据以上提示,针对山东北部遭受沙尘暴袭击的情况,向英语周报社投稿,呼吁大家植树造林,保护环境.