书面表达 
社会的发展带来了一系列的环境问题，如：水污染，动物灭绝等。如何使我们的世界变得更加美好，是我们要思考的一个问题。请你根据所学内容，以“Let's Make Our World More Beautiful”为题，写一篇80词左右的英语短文。
                          
Our environment is getting worse and worse,                                                                                       
                                                                                     
                                                                                     
                                                                                     
                                                                                     

学了这篇课文《“你必须把这条鱼放掉”！》，你知道了什么道理？