英语必修Ⅲ外研版MODULE4课件（共34张）W-UP精品.ppt

1、M4Sandstorms in AsiaWeve learned about many natural disasters in module 3.Do you remember them?earthquakefloodtornadolighteningAppreciation of the song Heal the WorldObjectives1.To learn about sandstorms in Asia2.To learn what cause the sandstorm3.To learn how to prevent the sandstormBeautiful lands

2、cape!But one day something happened.How horrible!1.What happened in these pictures?2.How about the sky?3.Why do they wear masks?DiscussionThe sky is yellow and it is difficult for us to see things clearlyHuang Xiaomei,who lives in Beijing says,“To be cycling in a sandstorm is frightening.The winds a

3、re very strong.Its difficult to breathe and the dust makes me ill.So if you want to go out,youd better wear a mask.”Huang Xiaomei生活在北京的黄晓梅说，“在沙尘暴中骑自行车真可怕，呼吸起来很困难，并且沙尘使我感到不舒服。所以如果你想出去你最好戴上口罩。How frightening(吓人的，可怕的)!What natural disaster is it?It is a sandstorm（沙尘暴）.cycle/wear/maskThe sand almost bur

4、ies the house.Look at the picture below and complete the sentences using the correct form of these words.There 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 blowingburied bl

5、ow bury frightening last(v)sandstormhasACBInner MongoliaGansuXinjiangmajor sandstorm centers in ChinaGansu and Western Inner MongoliaBeijing and Northeast Inner MongoliaInner Mongolia sees many sandstorms every year.It is far away from the sea,so it is an inland（内地的）region.Cause:1.Cutting down too m

6、any trees;2.Desertification(沙漠化);3.High temperature and little rain;4.Serious air and water pollution;5.The growing population of the world;6.Improper use of land In your opinion what caused the sandstorm?DiscussionMeasures:1.We should plant more trees and grow more grass.2.Control air and water pol

7、lution.3.Build green fences along the desert.4.Forecast sandstorms real time to prevent disaster.5.All countries should join hands to propose a plan in sandstorms control and prevention.What should we do to prevent sandstorm?The day before yesterdayYesterdayTodayLook at these pictures.Now work in pa

8、irs.Discuss what we should do to protect our environment.Useful words and expressions:throw the rubbish into dustbins(将垃圾扔进垃圾桶);cut down trees(砍树);pour waste water into(把废水倒入)save(节约);plastic bags(塑料袋);dig up grass(破坏植被);plant more trees;recycle useful rubbish(回收有用垃圾)What can we do to protect our en

9、vironment?Plant more trees and grow more grassReduce air pollution,live a low carbon dioxide life(低碳生活)Put different garbage into different bagsRecycle useful rubbishUse some new energy,such as wind,water and sun Use fewer plastic bags.Take the bus or walk instead of driving cars.Dont eat too much m

10、eat.Dont use disposable chopsticks.Other suggestions on protecting our environment:For example:Good morning,everyone:Im glad to stand here to make a speech.My topic is how to protect our environment.In my opinion,firstly,we can plant more treesMake a speechHomeworkPreview the part of Reading and Vocabulary.