写作思路及要点：审清题目，确定中心，选择材料。
The environmental pollution is worse and worse today. Many trees are cut down, and water and air are polluted. As a student I try to have a low-carbon life to save energy and reduce pollution.
今天的环境污染越来越严重。许多树木被砍伐，水和空气被污染。作为一名学生，我努力过低碳生活，以节约能源和减少污染。
Firstly, I often walk to school. It can reduce air pollution. Secondly, I always turn off the lights and fans when leaving the classroom. Thirdly, I always make full use of paper and other school things and never waste water.
首先，我经常步行上学。它可以减少空气污染。第二，我离开教室时总是关灯和风扇。第三，我总是充分利用纸张和其他学习用品，从不浪费水。
I wish more students to join me and make the earth more and more beautiful.
我希望更多的学生加入我的行列，让地球变得越来越美丽。
