On Sunday, the sun is shining, birds are flying in the sky and butterflies are dancing among the flowers. I finished my homework and said to my mother, "Mom, shall I help you with some work?" Mom said happily, "OK, then help me wash the vegetables."
My mother asked me to wash my favorite oily wheat dish. I took half a basin of water from a big basin, put the oily wheat vegetables in it and washed it carefully. After washing, I poured the dirty water into another basin and washed it again. Mom saw it and asked strangely, "What are you doing?" ? It's not enough trouble to wash vegetables like this. "I said," You don't have to pour the water for washing vegetables, you can water the flowers. " Mom smiled and said, "Just pour some water. You are wasting your time. " I said to my mother, "Mom, you are not right. The book says that we should save water. " Mom said, "Really? Where did you see it? "
I quickly took down the book "Cherish Life and Grow Healthy" from the shelf, turned to page 37, and read it to my mother: "China is a country short of water ... Among more than 600 cities in China, more than 400 cities have the problem of insufficient water supply ... The water used to flush toilets is equivalent to the per capita daily water consumption of developing countries ... Mom, look, how water is scarce in China, and we.
My mother blushed at my words and bowed her head shyly and said, "I didn't expect you to be such a small adult." You're right, we must save water. Come on, mom will water the flowers with you. "
Just then, I suddenly heard a knock at the door. I opened the door and saw that it was my good friend Diandian who came to visit me. When she saw us watering the flowers, she shouted, "Oh, why do you water the flowers with the water of vegetable leaves?"
"Of course," I said, "it's a way to save water. Do you know that our country is a country short of water? The Yellow River is running out of water, and some people in mountainous areas can't eat water all day. We should save water, or there will be no water to eat one day. The washed water is not dirty and can water the flowers. After clarification, you can also wipe the floor and flush the toilet. "
After listening, I nodded and said, "You speak very well. In fact, our family is also a waste of water. My father always leaves the tap on when he brushes his teeth, letting the water run away in vain. When I get home, I have to tell my parents that our family should also save water. "
I am happy to hold a small hand and say, "You are really my good friend, so let's be small environmental guards to save water."
One afternoon in summer, Xiaohua, who is in the sixth grade, called Xiaoming out to play ball in class. I didn't return to the classroom until the sun went down. Xiaohua looked at his black "paws" and immediately ran to the bathroom to wash his hands. Xiaohua soap was washed over and over again, and my hands were washed over and over again, and my hands were full of dirty water. Just when Xiaohua cut in line in the bathroom, I heard Xiaoming upstairs shouting "Xiaohua" to himself. The teacher called you! "Xiaohua a listen to immediately ran upstairs, also forgot to turn off the tap.
Lingling, a sophomore, is busy cleaning the classroom, sweeping the floor, mopping the floor and cleaning the blackboard. Two chubby little hands are also covered with dust. Lingling looked at her little hand, put down her broom and skipped to wash her hands. Before entering the bathroom, Lingling heard the harsh sound of running water inside. Lingling ran in quickly and turned off the tap. The water overflowed the washbasin and flowed everywhere. Lingling picked up a mop to clean the water and washed her little hand with the rest of the basin. Lingling thought, "Who didn't turn off the tap?" Suddenly, Lingling ran out of the bathroom when she saw the spray wiping her hands in the aisle. "Big Brother ..." Before another "big brother" called out, Lingling ran to Xiaohua. Facing the blooming of the sixth grade, Lingling said with a straight face, "Excuse me, big brother, did you just wash your hands in the bathroom?" Hua Shui looked at Lingling and said, "Yes, what can I do for you?" You forgot to turn off the tap, big brother! Lingling narrowed her eyes.
Hua Shui recalled the process of washing his hands, and found that he really didn't turn off the faucet, so he ran to turn it off, but Lingling stopped him: "Brother, I have turned it off for you, but you must turn off the faucet after washing your hands." The teacher said that water is a life resource, and people can't live without water, so we should save water. " Then Lingling smiled at Xiaohua and skipped away.
In the corridor, Xiaohua was left alone. He looked at Lingling's back and felt extremely ashamed.
This afternoon, our class took part in a trip to save water. We will go to Rose River, the mother river of Lianyungang City, to collect water samples, then go to Huaihai Institute of Technology for water quality testing, and finally go to the Water Conservancy Bureau for an interview.
After half an hour's drive, we arrived at the Ross River. The students saw the muddy river rippling in the sun in the distance. The river is so muddy that it seems that someone has mixed a bucket of green paint into it. Looking all the way along the wooden bridge in the water, there is mud everywhere. The water is covered with duckweed and other aquatic creatures, and there are mineral water bottles and garbage bags everywhere. When the students saw this scene, they took pictures with their cameras one after another and said that they must not throw things around again. Throwing a small piece of paper is not big, but it is a hidden danger. What a great harm this is to nature!
Taking water samples, we came to Huaihai Institute of Technology, and the teacher took us to the laboratory. Everyone's eyes lit up: the desks everywhere were filled with bottles and cans, and the experimental teacher squeezed a little water sample on the glass like a magician and then lit it with an alcohol lamp. Change the water into a black robe, then spray another small watering can, and change the water into a purple coat by quickly "changing clothes". That's disgusting! People are accused of littering, and the sewage discharged from factories destroys the water environment.
Finally, we went to the Water Conservancy Bureau, and the director, Uncle Hu, received us. He briefly explained the imminent water crisis in Lianyungang. He said that many people not only waste water, but also destroy the water environment. There is a pool behind his house, and people throw leftovers and garbage every day. Now it has become a small garbage dump, which gives us great inspiration: water is not infinite, and it is not always pure. Why should we hurt the rest of the earth?
We spent a special afternoon.
The earth is our only home, and now our home has fallen into a serious water shortage, and water is the foundation for maintaining human life. Tens of thousands of people die every year because of lack of water, and tens of millions of people live in a water-deficient environment. We can't wait any longer Mother Earth, who gave birth to us and raised us but was destroyed by us, is calling for the help of all of us! Man's carelessness is pushing himself into a corner. Sooner or later, when we can't shed tears, we will ask ourselves in despair: What should we do without water?
We should establish the consciousness and habit of saving water now. Water is not "inexhaustible" as people think. In fact, water resources on our planet are extremely scarce now. Tap water is also hard-won, and it takes many people and processes to be processed into clean water flowing from our faucet. China is short of water resources, and the per capita water resources in China are only about 2,300 cubic meters, which is equivalent to a quarter of the world average. Therefore, China promulgated the new water law in 1, xx. Article 7 of chapter 1 clearly stipulates that "the state practices planned water use and strictly saves water", and regulates water conservation in the form of law.
From this point of view, there are quite serious problems in our daily water use. If we pay a little attention, we will find that there is indeed a waste of water resources around us. The main reason is that the consciousness is not enough, and the concept and habit of saving water have not been developed. Saving water is not just a slogan. We should cherish every drop of water, firmly establish the concept of "saving water is glorious, wasting water is shameful" and always pay attention to saving water.
Water saving should start from bit by bit, and some water saving tips have both water saving and special effects. When washing clothes, set the water level lower to increase mutual friction, which is both water-saving and clean. Washing dishes and chopsticks with washed rice can save water and oil. Watering flowers with water from fish farming can not only save water, but also promote plant growth. You know, when you turn on an open faucet, you save an ocean. Do you know that when you reuse a basin of water, you save countless lives? ...
We all want to live in a world where birds are singing and flowers are fragrant. Everything in the world needs water. Without water, there is no life. Therefore, I propose that all of us should unite to save water The earth needs our * * * maintenance, and we must never let the last drop of water on the earth turn into our own tears.
When I think of "saving water", I always think of a public service advertisement of CCTV: Don't let your tears be the last drop of water. Water means two words to this planet: life.
Water is too important for the environment. Although we are not fish or living in an environment surrounded by water, we can't leave water. Although the blue planet where we live is covered with water, it has only 3% fresh water.
I'll teach you several ways to save water: you can wash your feet after washing your face, and then flush the toilet. A vat for collecting waste water should be prepared at home, which can completely guarantee the amount of water needed for flushing the toilet. Rice washing water and noodle cooking water are used for washing dishes and chopsticks, which can remove oil and save water. Raising fish and watering flowers can promote the growth of flowers and trees. Brush your teeth with a cup to receive water, which can save 486 liters of water every month. Don't leave the tap on all the time when washing dishes. Although there is not much water drop by drop, it is unthinkable if all provinces do this.
I remember watching a program on TV. An old man lives in a bungalow and is in the south, so it often rains. The old man actually collected rainwater to flush the toilet. He has a clearing in the middle of the room, where some flowers and plants are planted. He arranged the flowers and plants in a circle and built a pool in the middle, which was underground. When it rains, water flows into the pool from the sewer. There is a pipe in the pool, which is buried underground and leads to the water tank of the toilet. It's not annoying to flush the toilet like this, and it saves water. This is a way to kill two birds with one stone.
Ah! Seen from outer space, the earth is a planet with a lot of water! However, this is not the case. There is a lot of water in some places on the earth, and there is no water at all in some places. Some children play with water guns, and some children only have the last bowl of water left.
China is short of water resources, and the per capita water resources are small. Beijing's per capita water resources are less than 300 cubic meters.
I appeal to everyone to save water for themselves and future generations.
Water is the source of life and the "milk" that nourishes everything. Everyone can't live without water at home. Without water, we will die of thirst.
The daily water consumption in my home is about 0.5 cubic meters. Based on the current price of 2.79 yuan per cubic meter of water, the daily water fee is about 2.79×0.5≈ 1.4 yuan. According to this calculation, there are 365 days in 20xx, and my family's water fee this year is about: 1.4×365 ≈ 5 10 yuan.
China has a population of1300 million and about 350 million families. If the daily water consumption of each household is similar to that of my family, then the daily water consumption of our family is about 0.5×350000000= 175000000 cubic meters = 65438+75 million cubic meters. The annual domestic water consumption in China is1.75× 365 ≈ 63.9 billion cubic meters. Taihu Lake, one of the four largest freshwater lakes in Suzhou, has a total storage capacity of about 65.438+02.894 billion cubic meters. 639÷ 128.94≈5 (a), that is, China will use nearly five Taihu waters only for domestic water a year. It's amazing. Calculate the water fee again: 510× 350000000 = 1785000000 yuan =1785 billion yuan. The cost of our Hongfeng primary school is 20 million, and178.5 billion can build 8925 Hongfeng primary schools, which is another astronomical figure. Seeing these figures reminds me of a public service advertisement of CCTV saying: China is a country lacking in fresh water resources. If we don't save water and destroy it at will, we will eventually see our own tears. Thinking of this, I quickly called my parents, grandparents. I introduced them to these amazing data. They were very moved and all said that they should save water.
After some calculations, I know more about the importance of saving water. I hope everyone will save water. It also made me deeply feel that mathematics is very useful to our lives. I like math, and I like learning math even more.