tornado,flood,hurricane,tsunami,lightning,sandstorm,Task: 1.阅读理解所学文章。 2.作相应的阅读练习。,Match the words with the definitions.,1 to ride a bicycle _ 2 someone who knows a lot about a subject _ 3 things that happen one after another _ 4 someone who lives in a town or city. _ 5 very small bits of dirt or earth _ 6 to say what will probably happen _,cycle,expert,process,citizen,dust,forecast,citizen, cycle, dust, expect, forecast, process, situation,Read the text as quickly as possible.,Why do sandstorms increase in China in recent years?Serious air and water pollutionDesertification.The growing population of the world.High temperature and little rain.,Read the articles carefully and answer questions.,What happened to Ren Jianbo when he was a child in the desert?,2.Can you explain why the desertification happen?,3.What happens to traffic when sandstorms take place? Why?,4.What shall people do if a sandstorm arrives?,1.He experienced a terrible sandstorm.,2.Because of climate changes and because people cut down trees and dig up grass, land becomes desert,then desertification happens.,4.Experts advise people not to go out. If cycling in the sandstorm, one had better wear a mask.,3.Traffic moves very slowly because the thick dust makes it difficult to see.,Decide if the following sentences are true (T) or false (F).,1.A government campaign has been started to help solve the sandstorm problem. 2.The winds in a sandstorm can sometimes prevent you from seeing the sun. 3.Northwest China is the sandstorm centre in Central Asia. 4.The Chinese Central Weather Station can only forecast a sandstorm some months before it arrives. 5.It is frightening to be cycling in a sandstorm. 6.The government is planting trees to the east of Beijing to prevent the desert coming nearer.,F,T,F,F,T,F,Fill in the form according to the text.,strong, dry winds that carry sand,so thick that; wind, strong enough to,Central Asia, North America, Central Africa and Australia,desertification; a process, climate changes, cut down, dig up,Government is planting trees. Experts advise people not to go out when it comes.,How do you retell the text?,According to theform,Retell,strong, dry winds that carry sand,so thick that; wind, strong enough to,Central Asia, North America, Central Africa and Australia,desertification; a process, climate changes, cut down, dig up,Government is planting trees. Experts advise people not to go out when it comes.,An Interview,A reporter,I felt frightened but I wore a mask and cycled to school.,A student,A bad sandstorm takes place in a city.,I will interview the student who has cycled to school in the sandstorm. I have got several questions to ask him.,C: Good morning! C: What a terrible sandstorm! I know that you cycled to school just now. How do you feel now? C: Why wear a mask? C: What about traffic?. C:some advice for other students?,S: Good morning! S: frightened, tired The wind. could not move.S:sand, dust. hard to breathe. to protect S:move slowly The dustthick difficult to see. S: Let me see not go out. wear a mask,C: Mr Cui S: student,Write a short passage about your knowledge of sandstorm.,Homework:,