Unit 2 The EnvironmentProtecting the environmentEnvironmental problems are becoming more and more serious all over the world
As the world becomes more crowded, we are running out of our natural resources more quickly
In particular, we are polluting our environment
Large quantities of poisonous gas are being let off into the atmosphere, and other types of waste are flowing into the water
Moreover, forests have decreasedbecause many trees are being cut down
As is known to us, trees can absorb carbon dioxide and produce oxygen
As a result, the problem of global warming becomes more serious
So it's our duty to try to cut back on production
We should try to find ways of recycling our waste
Sometimes human beings are too greedy, and we should take responsibilities to protect our environme
