论文部分内容阅读
环境问题是本世纪人们最关心的热点问题。因为人的生存离不开环境,生态环境是人类赖以生存和发展的物质基础,一旦生态环境受到破坏,人类的生存就会受到威胁。现代中学生是本
Environmental issues are the hot issues that people are most concerned about this century. Because people’s existence is inseparable from the environment, the ecological environment is the material basis for the survival and development of mankind. Once the ecological environment is destroyed, human existence will be threatened. Modern middle school students are the present