【正确答案】　　From this picture we can see two sharp contrasts of people''s living conditions. In the left picture, people are living a comfortable life with green trees, beautiful flowers around the house. There are birds singing in the forest and animals resting in peace. But in the right picture, we can see only desert. I think either of the pictures could be the future of the human beings. And that depends on what we choose to do and what not to do now. 　　If we want a life in the left picture, we should protect our environment. We shouldn''t destroy the ecological balance of nature by cutting trees, killing animals, and polluting the environment. We do this not only for ourselves but also for our future generations.