We live in the world every day.
We eat food, drink water, wear clothes, watch TV, use computers and so on.
We are producing waste every moment.
Generally speaking, there are four sorts of waste.
They are material waste, organic waste, inorganic waste and poisonous & harmful waste.
Now, we are going to talk about each sort of waste one by one.
Material waste: it means the waste of substance or things from which something else can be made.
For example, people throw away the used metal products and buy a new one, so the old metal waste accumulates.
At last, they become waste.
For example, when people finish reading newspaper, the paper will become waste.
When the glass is broken, it also becomes waste.
Nobody wants to use a broken window or drink with a broken glass or wear a pair of broken glasses.
Once it is broken, it becomes waste.
The rate of using plastics is increasing day by day.
People use plastic bags because they are convenient.
When they get home, they throw the plastics way, paying no attention to the environment.
The more convenience plastics brings to us, the more plastic waste is produced.
This is called “white pollution” as most plastics are white.
Some of our products we use every day are made of rubber, just like the tyres and the bottom part of our shoes.
It’s true that rubber plays an important role in our life.
However, it also brings us some trouble when it has been used for a long time and becomes old.
The old tyres become waste because it can’t break down by nature.
This is really a big problem.
everyone!Now I want to talk about a beatiful world!
When I was young,I always dreamed that I lived in a beautiful country.
There were many flowers and trees around our city.
We counld hear the birds singing and see the children dancing.
The streets were clear and the the air was very fresh! How nice it was!But that only was a dream of mine!How I wish that it would be come true! So I think we should do something to protect our environment.
Everyone should make a contribution to protect the environment.
Taking care of our environment is very important.
Wherever you live,you can do something around your neighbourhood.
Have you ever thrown any litter onto the ground?Have you ever drawn pictures on public walls?Have you ever spat in a public place?Have you ever cut down trees?If your answers are "No",it means that you have already helped protect our environment.
It is our duty to keep our envionment clean and tidy.
You might ask yourself,"Have I ever picked up some rubbish and thrown it into a dustbin?Have I ever collected waste paper or bottles for recycling?Have I ever planted any trees or flowers in or near my neighbourhood?"If your answers are"Yes",it means that you have already done something useful to improve the environment.
Now I want to say :Let's do our best to make our world more beautiful!
Honorable judges, ladies and gentlemen.
Today，we are gathering here to discuss a very hot issue.
how to find harmony in a new age between man and nature? Where modern science and technology are concerned I am only a layman I have to say.
However, living in this "new age" , seeing my dear ones suffering from respiratory diseases from time to time, finding the beautiful colors of green and blue are being replaced by that of gray and pale, and realizing that our mother planet is getting more and more unhealthy; I can't help trying to offer my idea and my trivial efforts to look for the answer of the question.
As the ancient Greek oracle goes: know thyself.
I think in answering this above-mentioned question, this precondition is also very important.
Who are we? This is a question, which should be answered not only by those specialists, but also by every one of human beings.
Some people may proudly say: we are the masters of nature.