Recently, the air quality is becoming worse and worse. The sky is always grey. We can’t see the sun, the blue sky and the white clouds.______________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ If everyone makes contributions to protecting the environment, the world will become more and more beautiful!
答案：Recently, the air quality is becoming worse and worse. The sky is always grey. We can’t see the sun, the blue sky and the white clouds.In order to change the situation, we must do something useful. First, we must realize the importance of protecting the environment. No one can live without air. If we often breathe the dirty air, we will get ill easily. Second, we’d better go to school or work by bike or on foot. It’s good for our health. We should use public transportation like bus and subway more. If it’s not necessary, we’d better drive cars less. Third, we should plant more trees and stop people from cutting down trees. Trees can make the air clean. Finally, we can start from small things. When we go shopping, we should take a cloth bag instead of plastic bags. We should use both sides of paper. If everyone makes contributions to protecting the environment, the world will become more and more beautiful!