英语高中外研社必修三module4-reading-教学课件.pptx（纯ppt,可能不含音视频素材）

1、Module 4 Sandstorms in AsiaReading and VocabularyHow much do you know about natural disasters?tornadohurricaneearthquakelightingvolcanic eruptionNatural disastersPlease look at these pictures.How beautiful they are!AND.THEN YOU CAN SEE.The sand almost buries the car.What natural disaster is it?It is

2、 a _.It is very_.sandstormfrighteningAGansuCBInner Mongolia XinjiangABCDNorth AmericaCentral AfricaAustralia Central AsiaThere has been a _.It_ _ for ten hours and was very _.The wind _ the sand high around the houses,and some cars were almost completely _ by the sand.sandstorm lastedfrighteningwas

3、blowingburiedblow bury frightening last sandstormhasLook at the picture below and complete the sentences using the correct form of these words.What is happening?There is a sandstorm blowing.What is the cyclist wearing and why?Theyre wearing hoods,masks and glasses to protect themselves.What do you t

4、hink happens to traffic in this situation?Why?It moves very slowly,because its not clear to see everything on the road and people must take great care.What do you think experts advise people to do in this situation?Stay at home.Para.1Para.2Para.3Para.4Para.5Para.6A.Sandstorms in Asia.B.Sandstorms so

5、metimes affect Beijing.C.The government plants trees to prevent sandstorms.D.Sandstorms have been a major disaster for centuries.E.Sandstorms do a lot of damage to people.F.Sandstorms in China appear to have increased as a result of desertification.I.Read carefully and choose the best answers.1.Sand

6、storms are strong winds carrying _ through the air.A.dirt and mud B.rain and heat C.sand and dust D.cloud and snow 2.What do the experts advise people to do when a sandstorm arrives in the city?A.Dont go out B.Dont wear masks.C.Dont go to work as usual.D.Dont ride bicycles 3.The factors that cause l

7、and to be desert are _.A.cutting down trees.B.digging up grass C.climate changes D.all of the above4.From the last paragraph we know _.A.the government wont plant trees any more in five yearsB.the distance between the desert and the center of Beijing is only 250 kilometersC.more than 30 million tree

8、s have been planted in Beijing D.the government is taking measures to prevent sandstormsII.Read the text carefully and complete the following chart.Sandstorms in AsiaDefinitionSandstorms are 1._.The main places where sandstorms frequently occurredCentral Asia,North America,2._ strong,dry winds that

9、carry sandCentral Africa and AustraliaSandstorms in AsiaSandstorms in ChinaSomething about the sandstorms in China Sandstorms begin in desert areas and have increased as a result of 3._ these years.In Beijing the storms sometimes continue all day and the 4._ makes traffic move very slowly.Sometimes

10、the strength of the storm is 5._,and its difficult to breathe.desertification thick dust surprisingSandstorms in AsiaSandstorms in ChinaWays to solve the problem6._ has been started to help solve it and the government has already planted 7._ trees and plans to 8._ for the next five years.A mass camp

11、aignmore than 30 billioncontinue plantingComplete the sentences using the correct words.Sandstorms,strong dry winds 1.carry sand，have struck some Asian countries for centuries.As a result of desertification sandstorms in China seem to 2.(increase)in recent years.This is a process that happens 3.land

12、 becomes desert because of climate changes and 4.people cut down trees and dig up grass.Northwest China is part of the sandstorm centre in Central Asia.Sandstorms sometimes have 5.very bad effect on Beijing,6.(especial)on its weather and traffic.To solve the problem，many ways have been tried.For exa

13、mple,in order to stop the课文语法填空课文语法填空thathave increasedwhenbecauseaespeciallydesert，7.is only 250 km away to the west，8.(come)nearer to Beijing，the government is planting trees.So far，over 30 billion trees 9.(plant)and 10.(many)trees will be planted for the next five years.whichcominghave been plant

14、edmore小组活动：以“沙尘暴”为话题采访Topic:sandstormsRoles:reporter;an expert in weather,a citizen in the sandstormQuestions you may ask:What is a sandstorm?What are the causes of sandstorms?How do you feel and what do you see in a sandstorm?What should we do if sandstorms occur(发生)?How can we prevent sandstorms?W

15、hat are the causes of sandstorms?What measures should we take to prevent sandstorms coming?Possible tips:1.Plant more trees and grow more grass.2.Control air and water pollution.3.Build green fences along the desert.4.Forecast sandstorms real time to prevent disaster.5.Establish sandstorm data bank

16、and collect information about sandstorms.6.All countries should join hands to propose a plan in sandstorms control and prevention.Write a short passage about your ideas of preventing sandstorms?1.秋季。在北半球，台风多出现在夏、秋季节；此时亚洲高压已经出现，故此时应为秋季。2.天气晴朗。此时我国京津地区位于冷锋锋前，受单一暖气团控制且等压线稀疏。3.秋冬季节，亚欧大陆北部降温快，降温幅度大，气温下降引起气流收缩下沉，形成冷高压。4.此处为河谷地带，来自印度洋的暖湿气流沿河谷深入，导致此地气温较东西两侧高。5.该日此地为阴雨天气，夜间大气逆辐射强，气温较高，未出现霜冻。6.冷锋。冷锋符号画线在雨带南侧，由北向南移动，画图略。7.土地利用以绿地为主，绿地面积呈增加趋势；建筑面积增加最多，水域、其他用地、滩涂持续减少。8.布局在郊区，地价便宜；远离市区，能有效减小对市区的污染；临海分布，便于运进原料和输出产品。9.结合上题，主要从政策扶持，发展有机农业；提高农业技术，科学施肥；因主要从我国人多地少，农业生产压力大以及耕地资源的特点等方面分析加强农产品质量监管等方面分析.