英语必修Ⅴ牛津译林版UNIT2课件（共24张）TASK.ppt

1、water pollutionair pollutionsandstormacid rainglobal warmingdesertificationThere is a nationwide being held in order to make people realize the importance of environmental preservation.Every school has been given a topic and ours is desertification.UnitTASKDesigning a posterWork in groups of four,de

2、sign a poster about desertification.Only the first three groups have the chance to represent our school to take part in the national competition.heading(标题)a sentence/phrase about your topicdesertificationcontent(内容)details about your topicWhat is desertification?How does it affect the environment?W

3、hy does it happen?etc.solutionspictures/layout(布局)pictures about your topic/arrangement about your postera posterWhere can we find information we want?Listen to a lecture about desertification from the radio part by part,and try to collect specific information you need for your poster.Listening What

4、 is desertification?It is when _ land becomes _ and turns into a _.useableuseabledrydrydesertdesert How serious is this problem?Desertification affects _ people and _ of the land of the Earth suffers form this problem.A.250 million;4 million hectares(公顷)B.0.25 billion;4 billion hectaresC.25 million;

5、4 billion hectaresD.250,000,000;4 million hectares How are people affected by desertification?People breathe in _.People lose their _.Many families go hungry.Many move to cities to _.Conclusion:_People are suffering a lot from desertification!dirty airhomes and farmsfind work Why does desertificatio

6、n happen?It naturally happens.people plant _ without _.Too many animals depend on the same land to _.People cut down _ for fuel(燃料)and make space for _.too much on the land giving it a resteatmore farmstrees Whats the importance of making posters of desertification?It can _ people around the world a

7、bout the growing problem of desertification.educateIts because many people around the world do not know about desertification.Reading Skim a scientific article about desertificationfrom a newspaper on page 35 to pick out all the solutions mentioned to desertification.lUse satellites.lBuild fences.lB

8、etter manage the land.lTrain people in responsible water use.lPlant more trees and bushes.lFind underground water.lShare information and solutions between countries.Now you have collected much information about desertification,please finish writing the content of your poster.Writing Designing a post

9、erStep1.Headinge.g.Desertification A growing problem!Desertification needs your concern!Anti-desertification etc.Step2.ContentWrite a short passage about desertification,including the important things that you want people to pay attention to.But before writing,you should collect as much information

10、about desertification as you can.Step3.pictures/layoutAdd some pictures about desertification to your poster,and thus your poster is done.But a better layout will make your poster more attractive.Homework Finish your poster after class.You should present your poster to the whole class in the next class.