【正文】
share some of my stories and show you some data in my speech.At the beginning, I’d like to ask you a question. Has your hometown’s environment been polluted, if it has, raise your hands please? (Thank you) Let me give you an impression of my hometown. That is a small village of Yunnan province. There are many mountains, forests and rivers. If you go there, I promise you will be amazed by its beautiful landscape. Because you just can touch the nature with your fingers and feelings. You can enjoy the blue sky, flying birds, waterfall, amazing sunset and many other sceneries. When I was a teenager, I often climbed these mountains and jumped into clear and clean river for a swim with my peers. However, after my graduation from high school, I came to Beijing for college. I found something different. Because when I raised my head, the sky’s color was not blue, but yellow. When I looked down, dirty and poisonous rivers are full of unrecyclable rubbish and giving out unpleasant smells. When I looked forward, so many people wore their mouth masks. Everyone here plains weather and environment. It seems so inharmonious between man and nature. Why?As we know, in the past few centuries, human have made countless remarkable achievements in science and technology to explore the mysterious world better. Conquering nature with powerful tools, people have achieved material prosperity. Meanwhile, environment has been badly damaged.