—Let's meet outside the school (大门).

Now we have new problems. One of (big) problems is pollution. Noise pollution makes us talk more (loud) and become angry more (easy). Water (pollute) makes our rivers and lakes very dirty. Even some of the seas have become polluted. And sometimes there isn't cough food for the animals in the water. Air pollution is the most serious kind of the pollution. Both water pollution and air pollution are not only (danger) to our health, but also dangerous animals and plants.

Many countries are making new laws to fight against pollution. Factories must now clean their water they pour it out. They cannot let out dirty smoke the air, either. More and more cars are now using a new kind of fuel does not pollute the air.

(law) are not enough. We must take action now. We can use paper bags instead of plastic (one). We can keep old cans, and plant flowers in them. Everybody help to fight against pollution to keep our environment clean.