2. Sunshine can warm the river and let me take a bath;
3. Sunlight can make the quilt loose and soft, and make me sleep comfortably;
4. Sunlight can provide photosynthesis energy for green plants, making watermelons big and sweet;
The sun can attract the earth and prevent it from running around. If it hits an asteroid, we're finished.
6. The sun can evaporate water, send it to the sky, and then rain, which is much more emotional;
7. The sun can dry snow. Although snow is lovely, it is boring if it doesn't melt.
8. The sun can illuminate the moon, even if the sun is not there, the ground will not be dark;
9. The sun can heat the air, causing different air pressures in different places, forming a wind, blowing gently, so cool;
10. The sun can form sunspots.
So what is the function of the sun? The role of the sun has the following points:
1 brings us light and heat.
2, will not produce waste gas, you can use solar energy, solar cars, solar watches ... these can save electricity, water and protect the environment.
3. Sunlight exposure to the skin will dilate subcutaneous blood vessels, increase blood flow, increase the excretion and resistance of toxic substances, increase the secretion of saliva and gastric juice, strengthen gastrointestinal peristalsis, and promote appetite and digestion.
4. the skin can also make some chemicals, such as ergot and cholesterol, into vitamin D. This vitamin, calcium and phosphorus are important components of our bones. Without them, we would get rickets.
In winter, there are many benefits for pregnant women to bask in the sun. This is because during pregnancy, the metabolism of pregnant women is accelerated, and the demand for various nutrients is increased, especially the demand for calcium. As we all know, vitamin D promotes the absorption of calcium by human body. If pregnant women are short of vitamin D in their diet or have insufficient intake and absorption, and don't bask in the sun often, the 17- dehydrocholesterol in the skin can't be generated by ultraviolet radiation, and the absorption of calcium by the intestinal wall will be hindered. If vitamin D, calcium, phosphorus and other substances are lacking for a long time, pregnant women are prone to osteomalacia.
Sunbathing can restore and maintain the health of miners who have been working underground for a long time, and sunbathing once became a fashion.
7. The energy on the earth is directly or indirectly supplied by sunlight and becomes a food chain.
8. Ultraviolet rays in sunlight can kill bacteria.
Of course, if you stay in the summer sun for a long time, your skin will get tanned, and sometimes you will get heatstroke. The sun sometimes causes fires. The sun is very important to human beings. The earth's atmospheric circulation, the alternation between day and night and the four seasons, and the changes in the temperature of the earth are all the results of the sun. The sun is the only star that we can see the surface details, and most of our knowledge about stars comes from the sun.
2. The function of the sun is 400 words. We all know its bright function. Solar water heaters have also entered thousands of households, and some toys use solar energy to generate electricity.
Like a solar car. Now, you don't have to worry about not taking a hot bath at home on a hot night? Perhaps solar cars, such as decades ago, contributed their own strength to the motherland.
But if you put it in a dark place, it will run automatically and develop and utilize solar energy. People never thought of using the sun to boil water. A long time ago, the solar water heater will help you boil hot water, and cherish the opportunity of learning. Today, decades later, it may be a solar plane. Then in the near future, without it, we will have no light.
Also, sunshine, creating a better life. If you put a solar car in the sun.
As long as it is sunny, there is a solar RV. We primary school students should seize the time to study, in today's rapid development of science and technology. Now the sun has made countless contributions to mankind. I don't know other uses. Everyone is familiar with it. It walks by solar energy.
The sun still has a lot of room for development, and it has become a reality to use the sun to boil water. In this way, what else will people do with solar energy? It will stay there motionless.
3. What is the use of the sun in nature? Keep a diary. The mountains thank the earth, because the earth makes it lofty; Birds thank the sky, because the sky makes it fly; Fish and shrimp thank the river, because the river makes them swim; We thank the sun because it keeps us alive.
Everything needs sunshine to grow. Plants need sunlight. Without the water, minerals and nutrients provided by sunlight, plants cannot play the role of "photosynthesis" and will not sprout, grow leaves, bloom and bear fruit. Animals need sunshine. Without water and plants provided by the sun, herbivores would be extinct. Without the water provided by the sun, herbivores and carnivores can't survive; Man needs the sun. Without the water, plants and animals provided by the sun, human beings would not have today.
Many natural phenomena are inseparable from the sun. The sun uses its own heat to evaporate river water into the sky and turn it into clouds. More clouds turn into rain and snow. When the sun shines on the ground, it is hot where it shines, and cold where it doesn't shine.
Hot air is lighter than cold air. When hot air floats upward, cold air takes its place and forms wind. When there are many clouds, the clouds turn into water, the air is cold, and the water turns into ice in the air, which forms hail. The sun's high temperature of 6000 degrees, after1.500 million kilometers, came to the earth, bringing sunshine and brilliance. Without the sun, the earth would be dark and cold. With the sun, the earth is bright and warm.
Plants thank the sun because it makes them grow; Animals thank the sun, because the sun makes it reproduce; Water thanks the sun, because it makes it colorful; We thank the sun, because it makes us live happily.
4. What is the use of the sun for nature? Sunshine is warm and can bring warmth to the sadness in our hearts. Sunny, can bring a glimmer of light to the darkness in our hearts. Always support us, encourage us, shine on us and warm us. But sometimes, facing the distant sun, there will be an unattainable sadness. ...
In other words, there is a tiny planet in the vast galaxy. She has been kept in the dark for a long time. I don't know when she began to worship the sun, began to like the sun for no reason, and longed for the warmth of the sun. So she bravely took a step that she never dared to take. She learned to work hard and learn to struggle. She just hopes that one day, like the eight planets, she will get the first attention from the sun. This seems naive, even ridiculous. But she did it, and got as warm love as she hoped. Perhaps this love from the sun originally belonged to her, but it was not discovered.
On the other hand, the asteroid is me, the sun, my favorite sun and my Chinese teacher. Although I like it, I am still afraid of real contact with her, so I chose a special way to communicate with her outside the school. Here, when chatting with her, I can say whatever I want and do whatever I want, without hiding my happiness or sadness. I can totally believe that she is just my friend without any barriers between teachers and students! She always encourages me and supports me, letting me know how wonderful life is, how important learning is, and happiness is hard to come by. I really felt very happy during that time. Back to reality, we returned to each other in reality, and we became the most familiar strangers and the most strange friends. And I dare not contact her again because of the promise of "half a hundred cigarettes, an iron horse, fighting with others, just for you", which is a kind of sadness completely different from losing. Perhaps, what I have done is really not good enough. I don't deserve too much beauty that may not belong to me. Maybe, after a few years, I will fade away in her limited memory until I disappear. But I will always remember her kindness to me and never forget to thank her for waking up the dark little universe in my heart.
I don't know how long a meteor can fly, and I don't know if it's worth pursuing. I don't know how long the cherry blossom will last and whether it is worth waiting for, but I know that no matter what the reality is, whether it is owned or lost, it will always be the dazzling eternal sun in my heart. ...
5. Write a composition of 100 words. Write a composition about cactus in 100 words. There are many flowers on my balcony, but I like that cactus best.
Cactus is covered with green clothes and covered with small thorns. As long as your finger touches it gently, it will stick with a small yellow thorn and make you scream. The cactus is shaped like a grotesque big hand. Perhaps this is the origin of the name "cactus" During the two weeks of summer vacation, our family went on a trip. I thought the cactus would die of thirst, but when I got home, I was surprised. To my surprise, the cactus is still so green and energetic. I was surprised to ask my father, "Why didn't the cactus die after being watered for so long?" Dad told me, "this is because of the leaves of cactus."
I wonder: "Does cactus have leaves?" Dad pointed to the cactus and said, "The prickles of cactus are leaves, because it lives in the tropics. This kind of leaves is sharp and small, which can prevent the sun from exposure and reduce the evaporation of water." That's why it's so drought-tolerant. "
Cactus is not only drought-tolerant, but also tenacious. Even if its branches are broken, it will not affect its growth. If you put its broken branches in the soil, it will soon take root and put on green clothes.
Dad also told me: "The stem of cactus can cool down and reduce swelling." Scrape the prickles off the cactus, peel off the skin, mash the cactus and put it in a red and swollen place. Soon, the redness will disappear. "
It is so noble and great to sacrifice yourself and contribute to others! I love the tenacious spirit of cactus, and I love its spirit of sacrificing oneself for others.
6. Write a composition about the role of sunlight in the third grade of primary school. Warm sunshine.
warm sunshine
Author: Flying Dream School: Gaosi Education Time: 20 14-04-06
When is the sunshine warm?
Sunlight is warm when it provides light on a dark and lonely road, and it is also warm when it provides light for flowers that will wither and wither.
Sunshine is a clear spring in the desert, bringing coolness to thirsty people. Sunlight is a breeze in summer, which gives the rest of the tropical zone to the fidgety people. Sunshine is a bright light in the dark, bringing hope to those who are afraid; Sunshine is ... something I will never forget, just like warm sunshine shining on my heart.
If history suddenly turns over in the torrent of time, what aftertaste will it leave us? If fate changes the written fate, what kind of wonderful meeting will it leave?
I am breaking away from the gloomy arm of time and walking on the edge of time in confusion. My face is getting clearer and clearer in confusion, and I suddenly don't know what to say. Looking at the flood of familiar and unfamiliar scenes in front of me, there is an unspeakable surge, and it is unclear whether it is anxiety or happiness.
The sun is shining, and you, two poor kittens, appear in the oblique light and wave to me as if to say, "Hello!" " "How much I want to take you home, but I can't, so I must come here to see you often.
The more people I meet, the more I feel strange about this world, longing for the perception of the world and caring for my friends.
Time is indifferent, but I still stand where I am, just waiting. Perhaps, when everything has long been doomed to pull together, fate will bring us the best interpretation, although it may soon disappear.
I met you and met so many beautiful scenery.
Let's smile in this warm sunshine to recall the dribs and drabs of youth. Let's grow up together and create happy memories in this warm sunshine.
This is an argumentative paper about "warm sunshine". At first, it asked, "When is the sunshine warm?" The author demonstrates the function of sunshine with examples and reasoning, which is clear in hierarchy, clear in structure and profound in meaning.
7. Composition on the emergence and use of solar energy Let's take a look at our daily life 50 years later! A plane roaming in the air. A train speeding on the tracks. Cars shuttling on the highway. Ships sailing at sea now need a lot of gasoline, kerosene and diesel. As long as you walk a certain distance, you need to keep refueling. How inconvenient! At that time, it was great. As long as these cars are equipped with solar devices, you can run as far as you want. In life, we also need wood, natural gas and coal to cook and bathe in hot water. These are very limited in nature, and many things are inexhaustible. However, with a solar water heater, you don't have to worry about these things anymore. Turn on the tap, whoa, whoa, whoa. Also, at that time, our life improved, our living standard improved, and people's household appliances increased a lot, such as TV, refrigerator, computer and so on. They all need a lot of electricity, but water resources are limited. By then, if countless solar power plants are built, people will not have the trouble of power failure! Alas, the use of solar energy is endless. With the full use of solar energy, our life has really changed!
Solar energy can replace firewood, coal and oil. It can not only save energy, but also make the trees around us lush, evergreen and colorful! It can also reduce pollution, because there is no pollution from solar energy. Then a neat blue sky will appear before our eyes. Groups of children are playing on the green grass, singing and dancing, playing hide and seek, and playing games. The old man is sitting under the tree with books and newspapers, breathing fresh air. What a beautiful picture!
I am a sunny boy, and I like reading and writing very much. They brought me a lot of happiness.
I like reading since I was a child. Reading is an interesting thing. Sitting quietly in the corner every day, or like reading under the covers, is really a kind of happiness.
I am often attracted by the plots in the book: what are the adventures of the seven dwarfs and Snow White, how the frog prince is released by magic, how Robinson lives on a desert island, how funny it is that the giant in Lilliput is dragged by the villain, and it is incredible that Mr. Fogg should travel around the world in 80 days. These wonderful stories make me miss them.
Reading broadens my knowledge and makes me understand the truth. I will always be a child who loves reading. Since the first grade, we have set up a writing class. Sometimes we write, sometimes we keep a diary. I like these activities very much.
Because I think it is very pleasant to record things around me with a pen. I wrote about the hill in front of my house, because my father and I left footprints there.
I write about my dog, which used to be my good friend. I wrote about Jiulong Mountain in my hometown, which is a beautiful scenery in Fengning County.
I wrote about apricot trees in the yard, which is a paradise for me and my friends. Writing makes me happy and makes me more sensible.
9. The composition about the appearance and use of solar energy plays hide and seek. However, water resources are limited. At that time, let's take a look at our daily life after 50 years by building countless solar power stations. A plane roaming in the air.
A train speeding on the tracks. Cars shuttling on the highway.
Ships sailing at sea now need a lot of gasoline, kerosene and diesel. As long as they walk a distance, oil can not only save energy, but also make the trees around us lush. In life, we make a fire to cook, and natural gas and coal are very limited in nature. When we run out, many things won't be needed. However, with the solar water heater, we can run as far as we want, because there is no solar pollution. Hey! It can also reduce pollution. As soon as the tap was turned on, wow, wow, wow, a stream of hot water gushed out. How convenient our life should be! There are also televisions and refrigerators. At that time, our life improved, and we needed wood for hot water bathing. With the improvement of living standards, we don't have to worry about these things anymore. Evergreen all the year round, colorful flowers, old people holding books, newspapers, computers and so on, all need a lot of electricity. With the full use of solar energy, our life is really different! Solar energy can replace firewood and coal and play games. At that time, a clean and blue sky will appear before our eyes. Groups of children are playing, singing and dancing on the green grass, which needs constant refueling. How inconvenient! This was great at the time, as long as a solar device was installed on these vehicles.