You should still remember such a public service advertisement: there is a faucet on the TV screen, dripping water with difficulty, the speed is getting slower and slower, and finally it dries up. Then a pair of eyes appeared, and a tear flowed out of it. Followed by this sentence: "If human beings don't cherish water, then the last drop of water we can see will be our own tears."
People can't live without amniotic fluid in the womb, and they can't live without water after birth. People can go without food for three days, but they cannot go without water for three days. The human body is composed of cells, and cells need water exchange all the time to complete metabolism, so water is the source of life.
At present, clean water is rarely seen around us, most rivers are polluted to varying degrees, and people's safe drinking water and healthy drinking water are threatened as never before. So what should we do in the face of the increasingly serious water pollution?
First of all, we should protect water resources. Although China is rich in water resources, there are few available fresh water resources, and with the development of industry, water pollution has become a serious problem. Therefore, special attention should be paid to the protection of water resources in the process of developing economy and promoting urbanization. Secondly, everyone should have the consciousness of saving water. Turn off the tap in your life; Don't waste water on laundry, cooking, mopping the floor, etc.
Many people think that water, like air and sunlight, is an inexhaustible natural resource. But this is not the case. 97% of the water on the earth is sea salt water, and only 3% is fresh water, while only 0% is directly used by people. 5%。 With the continuous growth of the world population and the continuous improvement of industrialization, the water consumption is increasing, while the fresh water resources available for people are decreasing.
Now the earth is very short of water, but we often waste water around us. For example, some of our classmates often leave the tap on after washing their hands. Some students frolic with water bottles during recess and spill water all over the floor; In some construction sites, the water in the tap is rushing to DC ... The TV says, "If you don't save water, the last drop of water will be your tears." This sentence is really good, save more water, and don't wait until it's too late to cherish it. Think about it, if all the people in China save a drop of water every day, then we can save 654.38+03 billion drops of water every day. How many tons of water can we save a year? No matter how small the strength is, it is also a kind of persistence. As long as we start from the small things around us and start from me, more and more people will save water.
The earth cannot be cloned, and there is only one home. Water is the blood of the earth. It keeps circulating and keeps us alive. Without water, everything will die. Without water, human beings can't live. Without water, there would be no beautiful lakes and mountains ... Students, let's act quickly. From now on, start from me and save every drop of water.
Cherish water resources 500 words 3 The resources around us have been much less unconsciously, and the survival of mankind is in jeopardy!
We often see such a scene: clear tap water keeps flowing out of the faucet, but the people who use it have long since disappeared; The notebook was thrown into the trash can, but only a few pages were used; The light in the room has been on for a long time, but the people in the room have gone out to travel; The food made a big table, but people only ate a few mouthfuls ... These examples are all proof that we waste resources. Since people began to waste resources and abuse chemicals, the sky is no longer blue, the air is no longer fresh and the plants are no longer green. The earth, the mother of human beings and the cradle of life, has few known resources. It is already moaning: "I am so miserable!" " "
As we all know, water is the source of life. What will happen to human beings without water? Of course mankind will perish! Humans are extinct, and no matter how powerful they are, plants that don't need water can't escape bad luck. Nowadays, the fresh water resources in the world are less wasted by people regardless of the consequences. What about water resources per capita? It can only be summed up in one word-less. If we don't realize that we need to protect water resources early, then our fate is predictable: first, animals and plants will die because of lack of water, and then human beings will be judged by death.
The natural resources on the earth can no longer be wasted, because it is not inexhaustible. If the earth is destroyed, mankind will have nowhere to go. So, please take action to protect the earth and all the unique resources endowed by nature!
Cherish water resources composition 500 words 4 Do you cherish water?
Although there is a lot of water on the earth, in fact, 98% is salt water, and only about 2% is fresh water. And 88% of these 2% are at the poles of the earth, leaving only 0. 04% can be drunk directly. Now you know the shortage of water resources, right? Today, 65% of the world's available water resources are concentrated in 10 countries, and most countries on earth are in a state of water shortage. Scientists predict that in 2 1 century, water prices in many countries will be more expensive than oil.
In fact, our country is also a country short of water. Last summer vacation, my parents and I went to Ningxia, where there is an endless desert. The tour guide aunt told us that girls get married here, not to see whether there is a luxury car in the man's home, Jinshan Yinshan, but whether there is a water cellar in the man's home. It is conceivable how serious the water shortage is in western China.
But every time I come home from school, I will pass by large and small ponds, but many of the water in these ponds is dirty. They are yellow, green or black, or littered, and there is hardly a crystal clear river. Those black ponds will also give off a stench. It is estimated that watering vegetables with such water will not live. Nowadays, people pay too little attention to protecting water resources. They throw garbage into the river at will, and directly discharge domestic sewage and production sewage into the river without treatment, so that the original vibrant and crystal-clear rivers lose their former elegance one by one. Water is the source of all life. If they destroy water resources around us, do they know what they will get in the future?
"If human beings don't cherish the water source, the last drop of water on the earth will be human tears." This sentence is absolutely correct. Please let us take action to protect the water source on which we depend!