I used to live in a small town with green trees all around it. The river, run through the town，had clean water in it fish could be seen swimming in groups. The houses, however, was small and simple, and the street wasn’t wide enough to run cars. People worked hard all the year round but still lived a poor life. Now great changes have been taken place there. You can see tall buildings, department store and factories everywhere. Cars and buses are running in broad streets. But as the development of industry, pollution is becoming more and more seriously. A lot of trees are gone, and fish are disappeared because the dirty water. To our joy, people have been done their best to stop pollution and make the town even more beautiful.
