仁爱八年级下册 Unit 6 Topic 3 Section C What can we do to reduce pollution(共19张PPT)

Unit 6 Enjoying Cycling Topic 3 Bicycle riding is good exercise Section C--What can we do to reduce pollution? The world is changing all the time. The environment is getting worse and worse, air pollution and water pollution has killed a number of animals and people. Worst of all, people didn't realize the danger of the pollution. Blue sky, white clouds, green hill, green water, It is full of roses. People in the world live a happy life.The earth is our home. 蓝天、白云、青山、绿水，到处是鸟语花香。人们在这个地球上过着快乐的生活。地球是我们赖以生存的家园。 yesterday 昨天 sandstorm Forest reduce 沙尘暴 森林减少 Red tides Chemical pollution 赤潮 化工污染 The land is becoming sandy. Our city becomes dirty. The water is dirtier. Factories let out waste water without doing anything. The river is getting dirty. The temperature of the earth is rising! Do you know 1.砍伐树木 2.乱扔垃圾 3.不加处理排放废物 4.土地沙化 5.河水变脏。 6.空气质量变差。 7.全球气温升高 throw rubbish everywhere cut d