英语：Unit2《The environment》Welcome to the unit（译林牛津版必修5）.ppt

Earth song — Michael Jackson * * What do you think makes up “environment” ? ◇ human beings ◇ vast land ◇ mountains ◇ animals/plants ◇ rivers/ water ◇ sky/ air ◇ … Why is the earth crying ? earthquake forest fires typhoon/ hurricane snow slide flood and drought earthquake forest fires typhoon /hurricane flood﹠ drought Natural disasters snow slide …? problem ? water pollution Many people don’t have enough clean drinking water, which make them get sick. air pollution problem ? Air pollution causes more than 2.7 million deaths in the world every day. rubbish problem? ? defores- tation problem ? problem desertification ? rubbish desertifi-cation defores- tation water pollution Problems caused by man air pollution …? forest fires rubbish cutting trees smoke water pollution sandstorm Which ones are caused by nature and which ones are caused by man? Rubbish, smoke, cutting, water pollution are caused by man and the others by nature. (1) What are the environmental problems in your living surroundings? (2) What are the causes and effects of them? Air pollution Water Pollution Cutting trees Rubbish Effects Causes Problems Pour waste, unused products,etc Bring dirt and dangers spread diseases,etc Meet one’s needs, make wooden products Lose water soil,bad weather Pour waste, throw rubbish No drinking water, people sick Waste gas, coal oil burning Diseases deaths A sad Earth April 22nd What can we do to solve the environmental problems? Competition As a student, what can you do to reduce pollution and protect our environment? Discuss with your partners and write down the things you can do. Divide the class into two groups. The group which has more ideas will be the winner. GROUP A: GROUP B: