Water is the source of life, so we should save water.
Some people will say that our earth is called water polo, why should we save water? You know, 94% of the earth's total water is seawater, because of its high salt content, it can't be directly used by people. Rivers currently available for people to use. Reservoir water is unevenly distributed, accounting for only about 30% of fresh water reserves.
China is a country with a large population and water shortage. China's water resources are not small, with a total of 2. 800 million cubic meters, ranking sixth in the world. However, once the population is divided, it will be pitiful. The per capita possession is 2400 cubic meters, only a quarter of the world average, ranking 109 in the world. Generally speaking, China is a country with drought and water shortage, and it is one of the thirteen countries with water shortage in the world.
People should drink water, agriculture should drink water, industry should drink water, and cities should drink water. Water is needed everywhere, and the water resources in China are getting scarcer and scarcer.
Less water means drought. Drought and water shortage not only affect industrial production and the life of urban residents, but also cause serious losses to agriculture.
China is a big agricultural country, and agriculture is short of water. The average water allocation of cultivated land is only three-quarters of the world average. At present, agriculture lacks about 30 billion cubic meters of water every year, and the area affected by cold reaches 200-300 million mu. There are still 80 million rural people who have difficulty drinking water.
Students, since water is so precious and China is so short of water, let's join hands to save every drop of water, and don't let the last drop of water on the mountain of the world become our tears.
Environmental protection is our eternal theme, always the first in every country. Of course, if we don't act now, we will become extinct like dinosaurs in the near future.
Therefore, many celebrities have said famous sayings about environmental protection to warn us. For example, only obeying nature can defeat nature-Darwin; Nature is a kind mother and a cruel butcher-Hugo; People often regard the surrounding environment as a free commodity, and spoil it at will, but don't know how to cherish it-Gan Haman; The earth gives all people the essence of matter, but in the end, what it gets from people is the garbage of these matters-Whitman. ...
Don't we get anything from these famous sayings? Then let's take a look at our "masterpiece": Tangshan earthquake; Severe snowstorm occurred in Xinjiang; The worst drought in a century in southwest provinces and cities; A large-scale sandstorm broke out in the north; Wenchuan earthquake with M = 5. 12 in Sichuan. ...
Isn't the lesson of blood enough to make us humans disappear from the earth like dinosaurs? Don't we all want to see the magnificent mountains and rivers of our motherland? We don't want to see stumps, piles of garbage, pools of sewage and a personal heart!
On Sunday morning, the sun is shining and the breeze is blowing gently. My sister and I go to the square to exercise.
Come to the square, hey! There are quite a few people who exercise. Sister said, "Let's run!" "Very good." Just after running two steps, a breeze blew a black plastic bag into my face. "It's so disappointing, such a good mood is all stirred by this plastic bag!" "I muttered. My sister said, "Yes, you see, there are quite a lot of plastic bags here. Why don't we pick them up so that they won't fly to other people's faces again? " "Yes, yes." I clap my hands in favor.
As soon as I started, my sister bent down and picked up a plastic bag next to her. I'm not showing weakness. I ran to pick it up at once. Just when I got there, the plastic bag flew away like hide-and-seek with me. Look at that posture, as if to say, "I just won't let you catch it." I want to stay here for a while! " I was so angry that my sister smiled and said to me |: "You run so fast, with the wind, can't the plastic bag run?" I see. Under the guidance of "Master", I picked up many plastic bags very smoothly. Seeing so many "prisoners" in the hands of my sister and me, we can't say how happy we are.
On the way home, I thought to myself: Today is really meaningful, not only exercising, but also protecting the environment and being a little environmental guardian. It's killing two birds with one stone!
Fourth grade environmental protection composition 300 words 4 children, today I will tell you about environmental robots!
Environmental protection robots have the same head, body, round eyes, big head and small ears as humans. Carrying a backpack, holding a magic broom and an iron bucket, and having three buttons on his arm. The first red button is used to sweep the garbage on the ground into the iron drum. The second is to suck fine garbage into the stomach. The third is to take the garbage off the tree with a magic broom, pick it up and eat it in your stomach.
One day, I went to pick up garbage with an environmental robot. I was walking on the road with an environmental robot. At this moment, I saw a garbage bag hanging on the tree. I said to the robot, "Hey, you can launch something and the garbage will fall automatically." When the environmental robot saw the garbage falling on the tree, it opened its mouth to let the garbage fall into its mouth. Then, turn these rubbish into fresh air.
After a while, we found some beautiful rubbish. After seeing it, the environmental robot took out a small vacuum cleaner from its backpack. It turns on the switch, and the vacuum cleaner has a great suction, so it cleans up the garbage at once. When finished, the robot puts the vacuum cleaner back in the backpack. I searched several places again and found that it was quite clean, so I didn't clean it. I said to the robot, "Let's go, you have worked hard today!" "The robot said happily," OK. "So, the robot started the broom magic, and it happily carried us home.
Today, we summarized this comprehensive practical activity. Want to know the harvest of our group?
Our group is the most United group. Among them, there is the hard work of the team leader; With the cooperation of team members and relevant information provided, ...
But our group has encountered these difficult things these days: the handwritten newspaper has disappeared, the group leader and a team member are also ill, and all the information is in the group leader's place.
We finished writing the handwritten newspaper at once, but where is the group leader? What about the information? Later, the information had to be memorized, and I said all the lines of the leader. ...
With the joint efforts of our group, our program "Environmental Protection and Birthday" won the laughter of the students. The song "Let's Paddle" has been well received by teachers and students. The composition "Eat French fries" won thunderous applause from teachers and students.
Finally, our group won the "most popular award", which also taught us to use our brains in everything and not to rely too much on others.
How can you see a rainbow without experiencing wind and rain! Once, we not only won the highest prize, but also gave us a lot of inspiration: the ranking was not obtained casually, but was woven by the sweat and wisdom of our classmates!
1 On that day, my mother and I went to the Green Expo and watched the Green Expo.
I remember getting up early that morning, getting dressed and taking a shower, and my mother had already cooked the meal. I was quick, so I went out early. Walking on the road, there is traffic everywhere, which is very congested. It took about an hour to get there. Far away, I saw a tall green boy standing outside the gate of the Greening Expo, with a long queue at the ticket office, winding like a dragon.
When I walked into the Greening Expo, there was a sea of people everywhere, but what attracted me was colorful plants and flowers. The colors of flowers are also colorful, including red, yellow, blue, purple and pink ... they are all beautiful.
Although the scenery of the Green Expo is so beautiful, although the theme of the Green Expo is "people-oriented, work together to build a green home", some people throw away their garbage and spoil this beautiful scenery, so I want to be an environmental defender to appeal to everyone and to people around me to protect the environment and protect our home. From now on, we will start from scratch and * * * will pay attention to environmental protection together with * * *.
We live on a beautiful and spectacular earth. She is our mother, the cradle of life. How amiable she is! The earth has given me a beautiful and comfortable environment, which makes our life very happy. However, some people do not care about the environment, which leads to pollution. In order to keep the ecological balance of the earth and people's health, I want to start environmental protection.
On a sunny Saturday afternoon, I took my canvas bag and went shopping with my mother. Because plastic bags will affect the environment, I brought a bag to reduce the frequency of using plastic bags. We went to a supermarket and selected food. When mom finished eating, she went to the cashier to pay.
So, the assistant aunt gave her mother a plastic bag with food, and she was about to put food in it. I stopped her and said to her, "Mom, don't use this bag, it will pollute the environment!" " Mom said, "I can throw it in the trash can!" " ""I said it seriously, "but the wind blew and came out again. Is that different? "Mom asked again," What should I do? " I took out my carry-on bag and put it in. At this time, the assistant aunt next to me gave me a thumbs-up and praised me as a little environmental defender, which made me very happy. After shopping, my mother and I went home happily.
I am very happy, because I have done environmental protection, and I am an environmental guardian. I want to pass on this spirit to others, so that they can be as environmentally friendly as I am, and let the earth have a comfortable and beautiful environment.
One Sunday, my mother took me to the Baihe River to play. Before, I heard adults say, "Baihe is a beautiful scenic spot." But I really got to Baihe, but it surprised me.
The river is dirty and smelly. Plastic bags are wrapped around trees by the white river. I felt very strange and asked my mother, "Mom, isn't the Baihe River beautiful?" How did this happen? "Mom said," Yes, Baihe used to be beautiful, but now people litter, which seriously affects the ecological environment of Baihe. "I said to my mother," I want to protect the environment of Baihe. "Mom said," Well, son, mom supports you. "
With my mother's support, my confidence has greatly increased. I found a big sign first, and then it said: Please don't litter. Finally, put it in a conspicuous place. Next, my mother and I began to pick up garbage. Although my mother and I picked up a backache, I continued to pick it up after watching my mother and I tidy up a large piece of land.
Although we are very tired, we are very happy because my mother and I have made contributions to environmental protection. I am proud, I am proud, because I am a little guardian of environmental protection!
Today, I made a beautiful and environmentally friendly lantern.
I found an abandoned biscuit box, prepared a lot of discarded packaging cardboard, and also found some red waste paper, a small lamp bead, a small stick and a few small silk threads. Production has begun. First, tear off the advertising paper on the waste biscuit box to make the lamp body. Draw two lovely rabbits on red paper, then cut them open as decorations and put them symmetrically on both sides of the lantern. Then I cut a blessing and put it next to the rabbit. Cookie box lanterns seem to have been enchanted by me and suddenly become full of vitality. Finished the lamp body and began to make lantern pendants. I drew two rabbits on old cardboard, cut them off, glued them together with double-sided tape and hung them under lanterns, just like rabbits jumping into the air. In order to make the lanterns look festive, I cut them into circles with colored paper and spread them at the bottom of the biscuit box, as if flowers were blooming everywhere. Finally, put the connecting wire of the lamp post into the lantern. Press the switch, the light bulb will light up, and the light will shine through the silhouette and blessing of the rabbit. How beautiful! Under my careful production, my environmental protection lantern has finally been completed!
How about, after seeing my environmental protection lantern, do you want to try to make a different lantern yourself?