文档介绍：
第 1 页 共 presenting one eighth of the per capita level of China and one thirtieth of the world per capita level. Even worse, the underground water in some regions is absolutely undrinkable. Water pollution and water shortage have hindered Beijing's development seriously. The saying of "Don't make the last drop water be human's own tear" is by no means a deliberately exaggeration so as to create a sensation. If I was an environment protection worker, I would enact the law of environment protect strictly and check the pollution with all my perseverance. If I was a sewage treatment engineer, I would develop the most advanced sewage treatment equipment in the world that can be used to filter all the sewage into clean water. A pot of water can be used three or four times in my family . First , I use the fresh water to wash rice and then use it to wash my face .It′s reported that it is a good way to beautify my face . At last ,I use this water which is a kind of good fertilization to irrigate flowers .As a student in DianYe Middle School,we not only protect the water but also research the vegetation around us. Last summer holiday, with the teachers'help,we had a survey about the vegetation in ShiDu .We found fifty-eight species of plants were near extinction. It's a so large