【正文】
bee too crowed. Our natural resources are being used up and the environment is being polluted by human beings. Now , please look at the sky, black smog is full of the sky. We can’t see the blue sky. You can see lots of cars in the streets. They give off terrible gas every second. And you can see factory chimneys giving off black smoke. So we have to breathe the polluted air. Waste water is given off from factories. It directly flows into rivers and oceans. So we have to drink the polluted water and eat the polluted food everyday. And you can hear noise from time to time. More and more people die from the illness, which caused by pollution. And now nature is punishing us. If we don’t do anything to save the earth, maybe the dream will bee true in the near future. At that time, we can do nothing but cry for what we have done to nature. No nature, no life! Just imagine, if there were no trees no flowers and no animals in the world, only pollutants were left, how terrible it would be! We have only one earth. Don’t let our mother — the earth cry! If we want to live a better life and have a brighter future, we must do our best to protect her now, not only for the wellbeing of ourse