As we all know, pollution is harmful to living beings. There are many different types of pollutions in this world.

As we all know, pollution is harmful to living beings. There are many different types of pollutions in this world. For instance, water pollution, air pollution, noise pollution and so on. Water pollution cause many kinds of disease that have negative effects on human beings, sometimes the diseases will take people’s life away. Dirty air will increase the rate of getting lung cancer. While the noise pollution will cause insomnia. People’s health condition will be damaged. 

In my humble opinion, people should take measures to control the pollution. Recently, not only the government, but also individual has taken part in the action of protecting the environment. This is a good sign. Rivers are being cleaned, air is purified, and the people come to realize that the importance of protecting the environment. 
However, this is not enough, the problems are still exist. Not all of them have been solved. Some factories are still pouring dirty water into the rivers or give off the toxic gas into the sky. We should know that protecting the environment needs everybody’s effort.  
我们都知道，污染对生物有很大危害。在这个世界上，有许多不同类型的污染。例如：水污染，空气污染，噪音污染等等。水污染会使人们生病，甚至死亡。脏空气会使患肺癌的几率上升。而噪音污染会让人失眠。人们的健康水平会下降。
在我看来，人们应该采取措施去保护环境。最近，不仅仅是政府部门，个人也参与到环保中去。这是个好现象。河流干净了，空气清新了，人们也意识到环保的重要性。
然而，这些还远远不够。问题依旧存在。不是所有的问题都得到了解决。一些工厂依旧往河流里面排放污水，向天空排放有毒气体。我们应该谨记环境保护需要每个人的努力。