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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,Module 4,Sandstorms in Asia,The earth,belongs to,all of us,so we should,do what we can,to protect it,.,Have a try,Please remember the following suggestion:,Todays,free talk,?,Can you find out which one of the following pictures,refers to,a sandstorm?,1,2,3,4,5,6,snowstorm,drought,flood,tornado,sandstorm,thunderstorm,If you want to know more-,Lets,get close to,it!,New words,Match the words with the following definitions,:,forecast cycle(v)dust expert process survive,1.some who knows a lot about a particular subject,_,2.things that happen one after another,and have,a result _,3.very small bits of dirt or earth,on the ground or,in the air _,4.to say what will probably happen _,5.to continue to live after a difficult or dangerous,situation or event _,6.to ride a bicycle _,expert,process,dust,forecast,survive,cycle,1.What is sandstorm?,3.whats the weather experts advice when a sandstorm comes?,Sandstorms are strong,dry winds that carry sands.,They advise us not to go out.If we have to,wed better wear a mask.,Fast reading,2.Where in the world are the main four sandstorms places?,Central Asia,(2)North America,(3)Central Africa and Australia.(4)Northwest China,A,B,C,D,North America,Central Africa,Australia,Central Asia,Match the main ideas with each part,Part I,(,para,1),:,Part II,(para2-5),:,Part,(para6),:,major disaster in Asia,-sandstorm,Measures(,措施,),description,；,reason,；,influence,；,suggestion,Careful-reading,Careful-reading,1.Scientists have tried many ways to deal with sandstorms.,2.Land becomes desert only because people cut down trees and dig up grass.,3.The Chinese Central Weather Station can not forecast sandstorm some weeks before it comes.,4.Our government has planted more than 30 billion trees and plans to continue planting for the next 5 years.,来源,:,学*科*网,Decide if the following statements are true(,)or false(,),-,Para(2-5),Sandstorms in,Asia(key,words),Description,Cause,Influence,Suggestion,strong,dry winds_,the most _and dangerous,Desertification,；,_ changes,；,_ trees,；,_ grass,an _sky,strong_,city in a thick,brown-yellow _,move,slowly,difficult,to see and breathe,not to go out,wear a mask,orange,winds,climate,cut down,dig up,frightening,dust,that carry sand,major sandstorm centers in China,Gansu and Western Inner Mongolia,Beijing and Northeast Inner Mongolia,How far is the desert away from Beijing?,Part,The cars are covered with sand,Discussion:,What measures should we take to prevent sandstorms coming?,Trees are cut down,Nothing to hold water.,soil is blown away,Soil is washed into,rivers,There are too many sheep and cattle(,牛,),All the grass has been eaten,Grass will never grow again;the land becomes desert,What should we do,?,We should plant more trees and grow more grass.,来源,:,学*科*网,Control air and water pollution.,Stop people from cutting down trees.,Forecast sandstorms real time to prevent disasters.,来源,:,学*科*网,Collect information about sandstorms.,All countries should join hands to control and prevent the sandstorm.,保护环境 人人有责,Bye,bye,!,Its our duty to protect the environment.,
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