9.3

Unit 9. Exercise 16. Read and listen to the text.

My last words to teenagers. Dear kids, I am an old tree.

I was nine to years old, but people cut me down yesterday.

Now I'm dying. I want to tell you some important things

about your future before I die. When I was a child,

the earth was greener. There was no air pollution.

People were happier, and there weren't so many buildings

around us. The water, the air, and the environment were cleaner.

Later, people started to cut down trees, and they built

factories and tall buildings. They didn't save the habitats

of animals or water sources. Now the earth is getting

grayer. Animals are becoming extinct. Deforestation is

increasing. The earth is in danger. I think you are in danger,

too. It is not so difficult to live in a green world.

Everything is in your hands. You can plant trees. You can

warn factories about using filters. You can unplug your

electronic devices and turn them off when you don't use them.

These are not difficult things to do. You should also recycle

materials, like glass, paper, and plastic, and use

energy or water. I am leaving this world, but you are here,

and you need a green world. If you don't help the earth,

air pollution, water pollution, and environmental pollution will

damage the environment and kill the earth.