Humans are facing a big problem about the environment, which is a really serious thing in our daily life.
Pollution is bad for human health. It is said that millions of people died due to pollution every year. Forests are broken down to build cities and the cities' pollution are forming more deserts. The weather is turning warmer and warmer, causing a problem we call "Global Warming".The air and water (rivers) are also polluted by factories. Many people hope to breathe fresh air and drink clean water, but in some places this small wish is not even possible. If this continues, planet earth won't be suitable to live on anymore.
Fortunately, more people have realized how serious the problem is and are tying to help.
In other words, protecting environment is saving ourselves.
你们老师男的女的?女的看到你的作文肯定很生气,你作文里把人类都写成男的了. 低分的原因应该是你语法方面有点问题.不过我也不敢确定我能的满分,我用的是美式语法.