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Unit 9 Saving the earth Period 1 By Ivyriver Why is she crying? Why is she so sad? Have we done something bad to her? Discuss Water Pollution Rubbish Desertification Deforestation Air pollution Starvation smoke from factories smoke from cars And what’s the result ? Viet Nam War Iraq War waste from cities waste from factories what cause(s) water pollution ? Deforestation too many sheep and cattle all the grass be eaten grass never grow again 。 the land bee desert rain water washes the soil away wind blows the soil away no trees to hold the soil Desertification too many sheep and cattle→eat up the grass →no grass will grow→only sand left Starvation(hunger) and poverty Starvation is mainly caused by the uneven distribution of wealth and sometimes by war or natural disasters. We can reduce starvation by redistributing the wealth of rich countries, by providing education and technology to developing countries, and by giving moary aid to disasterstricken areas. Q1: What can you see in these pictures? Q2: What is the biggest problem facing the earth? Why do you think so? Q3:What causes the problem? Q4: What can we do to solve the problem? Q5: What do you expect to learn in this unit? Q6: How will you use what you have learnt in your own life? What can we do? rubbish box basket clean What can we do? ↖