As we know, with the development of science and technology, the environment is getting worse and worse, and the environment problem is becoming more and more serious in all over the world. For example, cars and factories made the air unhealthy to breathe and among of waste water is poured into rivers. In fact, pollution is already threatening our life. I think nowadays, which is a technological age that human should get more concentrate on how to protect our environment but not just focus on economic construction.