书面表达提升训练
请根据以下内容提示，写一篇题目为“Saving the Environment(环境)”的英语短文。
要求： 1、字数80词左右，标题和开头已经给出，不计入总词数。
2、内容要点见下，不需逐句翻译，可做适当发挥。
要点：
1、在过去的几年里许多地方变化很大。带来了不少收益，但是也导致了很多严重的问题。
2、空气污染——工厂不加处理排放废气(waste gas)，空气质量差
水污染——人们直接(directly)把废水倒进河流和湖泊里，水变脏
噪音污染—— 一些人只能从闹市区搬走
乱伐树木，乱扔垃圾等……
3、请提出合理化建议至少2条。
范文
Great changes have taken place in many places during the past few years. The changes have brought many benefits, and have also caused a lot of serious problems.
There is air pollution everywhere. Factories let out their waste gas without doing anything to it. The air is not clean any more. Some people pour the waste water into the rivers and lakes directly and the water is dirty now. Noise pollution is also very serious. Some people have to move out of the noisy blocks. Besides, people cut down too many trees and leave rubbish here and there.
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