\[范文6\]
Pollution Control
There are many cause of pollution. Let us have a look at some of them. First, there are so many cars in our cities, especially large ones. They give off waste, sometimes even poisonous gases. Second, many factories, such as papermaking ones, let their dirty water directly flow into our rivers and lakes. Third, farmers use more and more chemicals and pesticides. So, our fields are polluted.
Of course, these pollutions are harmful to our health. Some rivers have become undrinkable. Some polluted food or vegetables can cause cancer and if we breathe dirty air into our lungs, we may fall ill.
Now, some governments are taking measures to solve this problem. For example, our government is making a policy to punish the factories, which have made the Huai River very dirty. Also, our government is reducing the number of cars in Beijing. I think all these are very necessary. If we all work hard, this problem can be solved in the future.
\[范文7\]
Global Shortage of Fresh Water
Many people believe that fresh water will never be used up. They think that fresh water comes from such varieties of sources that it is always sufficient for us. Such opinion leads to surprising waste of water.
As a matter of fact, the earth is short of fresh water. Furthermore, with the rapid growth of the world’s population, the rising demand of water by industry, and the serious pollution of our surroundings, the world is facing the danger of running out of fresh water. Actually, in some big cities, fresh water cannot meet the daily needs.
Therefore, it is up to us to find new ways to save water. First, we should make the best use of water, and not waste it. Second, scientists must work even harder to purify seawater, polluted water and try to find solutions in industry to reduce the use of fresh water.
\[范文8\]
Men and the Environment
The world we live in is becoming more and more intolerable because of environmental destruction. For example, deforestation results in unpleasant weather. In addition, man is faced with problems of water pollution and air pollution.
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