One possible version：

Nowadays, pollution is getting worse and worse. The damage to the environment is getting serious. In my opinion, we should take some measures to protect the environment.

To protect the environment, I think we should do the follow things. Some useful garbage can be recycled, while the harmful things should be put in a safe place. Smoke and wastewater should be cleaned before they go into the air. If too many trees are cut down, forests will disappear. We should do our best to take good care of environment. For example, we should plant trees and stop using wooden chopsticks and stop throwing garbage everywhere. With modern fishing methods, more and more fish are caught. If too many fish are taken from the sea, there will soon be none left. If the rivers are polluted, we will die from the poison. We should make full use of natural resources, or we will be in great damage very soon.

题目分析：本篇书面表达要求写一篇参赛稿，呼吁人们保护环境，并要求提出有效的保护措施。根据要求和提示信息可以判断本文应该使用一般现在时，而且采用第一人称。对于环境问题人们耳熟能详，所以写作起来会得心应手，而且本文提示要点较多，同学们在写作时只要稍加整理，适当发挥就可以写出一篇内容丰富的短文。不过在组织要点时要注意使用恰当的连接词，比如besides，what is more等等，把各个要点有机的联系起来，使段落层次清晰分明，要避免流水账式的表达。此外，在句式表达方面也要赋予变化，比如可以使用倒装句，强调句等等，以提高文章的档次。

【亮点说明】本篇书面表达要点全面，语言简洁流畅，结构紧凑，段落层次分明。文章采用两段式结构，首先介绍要讲的环境保护这一话题，然后在第二段提出自己想到的一些措施。在介绍要点时作者使用了排比的条件状语从句，If too many trees are cut down, If too many fish are taken from the sea，If the rivers are polluted,这些都增强了句子的可读性，而且在文中陈述观点时作者还使用了例证的方法，也增强了建议的可信度。此外文中还用到了大量的短语，如To protect the environment, For example, With modern fishing methods, make full use of等，这些都显示了作者词汇的丰富。