Aurora
The aurora borealis is so diverse, colorful, and varied in shape that there is no phenomenon in nature that can be compared to it. Any color pen is very difficult to draw that in the cold polar air play in the unpredictable, unpredictable dazzling light. Aurora sometimes appear for a very short period of time, as if the holiday fireworks in the air flashed and disappeared without a trace; sometimes it can be in the dome of the sky in the glow for several hours; sometimes like a ribbon, sometimes like a flame, sometimes like a colorful giant screen; some of the colorful and varied, changing endlessly; some only silver white, as if the cotton wool, white clouds, solid, unchanging; some of the exceptionally bright, to hide the stars and the moon's light; Some are very light, like a bunch of green silk; some have a single structure, like a curve of arc light, showing a light green, reddish hue; some are like colored silk or ribbon thrown to the sky, up and down, fluttering; some are as soft as a gauze, fluttering in the wind, showing purple, crimson color; sometimes the aurora appeared in the horizon, as if the morning light of the dawn; sometimes aurora such as the camellia spit color, a fiery red; sometimes aurora densely together, as if a curtain mantle; sometimes aurora is gathered, as if a curtain mantle; sometimes aurora is gathered, like a curtain mantle; sometimes aurora is gathered together, as if a curtain mantle; sometimes aurora is gathered together, like a curtain mantle, like a curtain mantle. Sometimes it shoots out many beams of light, like peacocks opening their screens and butterfly wings flying.
Edit paragraph aurora produced
Produced
Aurora (Aurora or Polar light or Northern light) appeared in the high magnetic latitude of the planet over the region, is a kind of colorful luminescence phenomenon. Auroras on Earth are produced by the excitation (or ionization) of molecules or atoms in the upper atmosphere by a stream of high-energy charged particles from the Earth's magnetosphere or the Sun (solar wind). There are three conditions for the production of auroras: atmosphere, magnetic field, solar wind. All three are essential. Auroras do not only occur on Earth, but also on some of the other planets in our solar system that have magnetic fields.
Early views
For many centuries, this has been a celestial mystery of speculation and exploration. Once upon a time, the Eskimos thought it was a torch from the spirits guiding the souls of the dead to the aurora
heaven, and in the 13th century it was thought to be light reflected off the Greenland ice sheet. In the 17th century, people called it the Northern Lights - the Aurora Borealis (the same light seen at the South Pole is called the Aurora Australis). As technology advances, the mysteries of the Aurora Borealis are becoming more and more known to us, and it turns out that this beautiful sight is the work of the Sun performing in cooperation with the atmosphere. Among the forms of energy created by the sun, such as light and heat, there is a type of energy called "solar wind". The solar wind is a stream of charged particles ejected by the Sun, a powerful stream of charged subatomic particles that can cover the Earth and is therefore plasma. The solar wind flows around the Earth and hits the Earth's magnetic field at a speed of about 400 kilometers per second. The Earth's magnetic field is shaped like a funnel, with the tip facing the Earth's north and south magnetic poles, so the charged particles from the sun sink along the geomagnetic field as a "funnel" and enter the Earth's polar regions. The upper atmosphere of the poles, bombarded by the solar wind will emit light, forming the aurora borealis. The aurora borealis is formed in the Antarctic region. In the Arctic region is called the Northern Lights.
2. 50 words about the Northern LightsThe term "aurora" comes from the Latin word Ios.
Legend has it that Ios is the embodiment of "dawn" in Greek mythology, the daughter of the Greek god Titan, and the sister of the goddess of the sun and the goddess of the moon. The Northern Lights have been a "mystery" since the moment when man first looked up at the sky and was surprised to see them.
For a long time, people have developed their own aurora legends, Eskimos believe that "the aurora borealis, is the ghosts and gods to guide the souls of the dead to heaven's torch". The Aboriginal people, on the other hand, viewed "the aurora as the appearance of the gods, and believed that the fast-moving aurora borealis would make the sound of the gods stepping in the air, and would take away the souls of the people, leaving behind bad luck".
For a long time, the cause of the Aurora Borealis has been divided. Some people believe that it is a fire burning on the outer edge of the Earth; some people believe that it is the light reflected in the sky after sunset; others believe that it is the polar circle of snow and ice in the daytime absorption of stored sunlight after the night to release a kind of energy.
The mystery of this celestial phenomenon was not physically and rationally explained until humans sent satellite rockets into space. Essentially, the aurora is an optical phenomenon in which atoms and molecules are excited by their operation in the uppermost layers of the Earth's atmosphere (at altitudes of 100-200 kilometers above the ground).
There are three main elements that contribute to its formation: the Sun, the wind, the Earth's magnetic field, and the atmosphere. The so-called "solar wind" is the energy that the Sun constantly radiates to the universe, which is composed of electrons and protons.
Due to the intense activity of the sun, radiating countless charged particles, when the charged particles flow to the Earth into the Earth's magnetic field range of action, by the influence of the Earth's magnetic field, along the Earth's magnetic lines of high-speed access to the north and south magnetic poles near the upper atmosphere, and oxygen atoms, nitrogen molecules, and other plasma collision, thus creating an "electromagnetic storm" and "visible". The phenomenon of "electromagnetic storm" and "visible light" has become the much-anticipated "Aurora Borealis".
4. 3. What the evening sun looks like when it is reddish-orange 500 wordsThe sun is setting, and the beautiful evening sunlight is gradually spreading from the sky. With it, the setting sun changed from a half moon cake to a crescent shape covered by the evening sun, and finally faded into dreamland.
The evening sun dyed the western sky red. Faintly shining on every corner. At this time, the evening sun, like a shy little girl, just smeared with a layer of orange. The clouds in the sky blurred into various forms. Some of them were like a lamb running on the grass; some of them were like doves of peace flying freely. The evening sun was mysterious, and in a short while, it turned into a light red, when it was as if everything in the world was shadowed by the evening sun, as if it was floating among the flowers and forests. The sea, silent. The evening sun is a little reluctant, make all the strength, that color, make people feel changeable, unforgettable.
The feeling of black has gradually want us to approach, but the evening sun did not give in, he still insisted on their own beauty. The breeze blew, as if feeling the end of the evening sun. The sky, the slightly reddish clouds also scattered, he reluctantly put on a black veil, walked away.
As darkness fell, the sky shimmered with misty points of light, like pixies bouncing around on it. The night was also lit up with lights, and it was even more beautiful against the city of lights.
I recalled the beautiful evening sun, and could not help but marvel at his beauty. The morning sun is magical, and I think, the evening sun is more beautiful. Because of his beauty of nature, the beauty of simplicity, and let me know, he has a kind of unyielding spirit, do not we need to do so in our learning life
Thinking about it, I looked at the sky intoxicated ......
4. Write a description of the appearance of the composition 500 wordsDescription of the appearance of the year I was 6 years old, got a hair loss, the whole head even a hair. When I was six years old, I had an alopecia, and there was not even a single hair on my head. The children laughed at me and called me a "bald monk", and whenever I did that, I covered my ears with my hands as hard as I could, and it was as if my head had exploded.
Until I was 8 years old, I got well, and when I looked in the mirror, my hair grew out, and then it grew black and shiny, no worse than anyone else, and no one called me a "bald monk" anymore. My grandmother sat beside me combing my hair, frowning and mumbling to herself all the time.
Her hair was so thick that it covered her shoulders, chest, and knees, and fell to the ground, black and blue. She picked it up from the ground with one hand, lifted it, and with considerable effort *** the teeth of a sparse wooden comb into the thick locks.
5. Description of the thunderstorm essay 500 words Sixth gradeZhao Dong City, Heilongjiang Province, Yinghua Bilingual School, fourth grade Tyrannosaurus Jia Nan "Rumble -" a few bursts of thunder, black clouds like a herd of galloping and roaring wild horses.
A layer of roaming over the head, the more gathered thicker and thicker, the lower the pressure, as if standing on the roof of the building can pull a piece down. The sun was scared and did not know where to hide, as if who at once dialed the clock to night, the world is dark.
It's going to rain! We ran back to the classroom.
Crackling! The first time I saw it, I saw it in the back of my head! The copper-coin-sized raindrops beat rhythmically on the glass windows and iron tiles. "Ka-ching!" Another big blast of thunder! As if it had blown up the river in the sky, the pouring rain came down in torrents.
A streak of lightning streaked across the sky, and the branches of the trees swayed wildly in the storm. A white mist rose from the roof of the house, and the water from the eaves of the house flowed down like a mountain waterfall.
In a short while, the streets and yards became a sea of water, with a meter-high wall of water splashing up where cars passed by, and the gusty winds lifting up a layer of water waves. At this moment, we are sitting on a big boat that is breaking the waves in the storm.
The sky is gradually bright, the rain is gradually small, fine rain like milky fog, the forest grass flowing cool green. Clouds dispersed, the sun came out, the earth everything like filtered, fresh air, with the aroma of flowers and grasses ...... Instructor Zhang Jun Lei Yu Dongshan two primary three (5) class Su Chen Today, the weather is unusually hot and stuffy, so people feel breathless, I thought, before long it must be raining.
In a short while the sky was covered with dark clouds as if it was going to collapse, and the lightning swept across the sky with thunder, like the whole sky was split open, and the wind was not to be outdone, it was whistling and blowing, blowing up the leaves of the dancing trees, and blowing the roots of the trees askew. Heavy rain fell, bean-sized raindrops like a broken line of pearls continue to fall, the rain is more and more big, the rain on the ground soon converged into a small stream "cackling" laughing, singing, jumping, running forward, raindrops like pearls, a handful of sprinkled on the surface of the river, the calm ripples on the surface of the water.
The clever fish jumped out of the water, as if to suck on the pearls. The rain, whip-like, lashed the buildings, trees and asphalt roads.
The rain fell incessantly, like a thousand needles and thousands of threads, sewing the sky tightly together. The rain was like a child's face crying and laughing.
This is not the rain said to stop, the air is extraordinarily fresh, the leaves become more turquoise, the distant blue sky appeared in a rainbow, like a giant arch bridge across the sky. The wind is blowing over and it is very cool.
Teacher's comments: This article is a careful observation of the small author, clear organization. According to the order of before the rain, in the rain, after the rain, seize the characteristics of thunderstorms, description more specific.
Thunderstorm (essay) Ganzhou District Xiaohe Township Center Primary School, fourth grade He Haiyan Summer thunderstorms, said to come. After lunch, I sat in front of the window to write homework, and I felt that the weather was a little cool and it was about to rain.
In a moment, the wind was gusting and the air was covered with dark clouds. Then it started to rain.
The rain became heavier and heavier and raged. The rain fell like countless lines, washing the rows of trees in front of the door.
Suddenly, the rain blew into the window with the wind and wet my homework book, so I hurriedly closed the window. The rain poured down.
When I looked out through the glass window, the sky and the earth looked like an immensely wide, gray curtain. The rain dripped on the tiles of the houses and splashed everywhere. The whole roof of the house was covered by a layer of mist, and the leaves of the trees, flowers and grasses were all green and shiny.
The rain gradually decreased, the sun drilled out of the clouds, and the earth shone with a thousand rays of light, and the earth was fresh. The rainbow hung like a sky bridge in the wide, unbelievable air.
I pushed open the window, a fresh smell of earth came to my face. A group of small birds in the blue sky under the rainbow, free to fly, they fly higher and higher, fly farther and farther ...... (Instructor: Xing Limin) Thunderstorms Dongtai Experimental Primary School, fourth grade Jiang Ziwen Thunder came from far away, the sound of the sound of the sound of the sound of the sound of the sound of the sound of the sound of the sound of the sound of the sound of the sound of the sound of the sound.
Before long, it started to rain. Bean-sized raindrops began to be sparse, and then became bigger and bigger and denser.
A line of rain weaved into a "rain net", covering the whole city. I ran downstairs and rushed into the curtain of rain.
"Wow, it's pouring!" I immediately felt much closer to nature. Countless raindrops were jumping and scurrying around: some drew a vertical line in the air, some "rampant", and some simply jumped around on the roof.
Whether it is horizontal down, or oblique floating, their lives are short, a moment will be gone; their lives are eternal - it is wholeheartedly melted into the earth! When I climbed high and looked into the distance, a cloud of smoke filled the sky. In the haze of the houses, as if into a block of blocks built up the fairy tale city; trees are also foggy, the color of green vaguely dark.
The wind shook the branches of the trees enthusiastically, and the trees happily waved their arms and danced with the wind! At some point, the rain quietly stopped, and the clouds gradually dispersed. The sky, the sun revealed its face, a beam of golden light shot to four.
6. An essay describing the winter rain 500 wordsThe continuous rain for several days has brought inconvenience to everyone's travel.
Almost New Year's Eve encountered such weather, people's mood is a little depressed. At noon, I took a taxi home from Longtan Bridge.
Because I was in a hurry in the morning, I didn't bring an umbrella. At this time, I can only accept the "baptism" of heavy rain.
When I managed to stop a cab, the down jacket has become a "raincoat". The cab is a "sister", saw me in such a mess, said with a smile: "rain so big, go out without an umbrella," I was embarrassed to smile, reported my home address, then just focus on the head to beat the rain on the body.
When I looked up, I realized that I had arrived at the pedestrian street. The "sister" why to drive here it is not "the opposite" it so, I asked the "sister": "I went to Wan Hong five villages, how to drive to here it". to here it" "sister" a pat on the head, hastily apologized: "Sorry, sorry, I heard the wrong address."
Said, immediately turned around, but also restarted counting. When waiting for the red light, the "sister" is still patting her head in self-criticism.
If I did not panic in the mouth, I think, she would not have to go so many more wrong way it my face "Teng" on the red. I'm not sure if you're going to be able to get a good deal on the way to your home, but I'm sure you're going to be able to get a good deal on the way to your home.
In the face of a child, she can use such a sincere tone, sincere service, it is rare! I was touched with a sense of gratitude for being honored. I regret so much that I neither took the cab invoice nor read the license plate number due to my eagerness to go home.
Thanks to the "sister", your excellent service attitude is like a ray of sunshine in the winter rain, warmed my heart, thank you! Write this, I wish you - "sister", I wish all the "brother", "sister", a safe journey! The first is the "Sister".
7. 500 words about the description of the thunderstormIn the afternoon, there was a sudden gust of wind outside. The chickens and dogs were barking everywhere in the village, and the house became dark. It was going to rain. The leaves of the trees shook strongly, and there was a "rumbling" sound in the distance, as if it came from under the ground.
I looked out the window and saw that the sky was cloudy and the wind was blowing. But in a moment, the rain was pouring down outside. My window was rattled by the wind, so my mom hurriedly locked it. During a thunderstorm, you can not turn on the TV, computer, tape recorder, repeater ...... I had to draw.
Another gust of wind, shaking the eyes of the people, I do not know who is not related to the windows of the house, "snap" came the sound of broken glass. The ground appeared wet marks of rain, gradually becoming larger. The thunder grows louder, as if encouraging the rain: everyone jumps down! The rain got heavier. The sound of thunder became clearer, and grandma said: this is standing thunder, the most dangerous. The sound of thunder "click," "click," is just like what is written in Journey to the West, with Thunder God and Thunder Mother commanding in the clouds with sledgehammers in their hands. Lightning lines are getting thicker and thicker, and when you strike a thunderbolt, there is a lightning bolt that cuts through the sky and plunges into the ground, making the sky as white as day. The rain was intermittent, a moment big, a moment small, "clattering" sound close and far away, I do not know when it will stop, the birds with nests have returned to their nests, no nests hide under the tree, from time to time to shake off the rain on the head, and then y hide their heads in the neck. This lightning is getting faster and faster, quickly appearing and disappearing, like a little boy who is hiding with you, he is wearing bleached white clothes, that kind of white is a kind of color that is difficult to mix on the palette, he will be light yellow, orange, gray, white like light into one, and make up the color of this lightning.
After the thunderstorm, the sky seemed to be bluer and the air fresher, probably because the thunderstorm cleaned them! A moment later, the lightning streaked towards the sky, the wind ran away into the distance, and the rain went away quietly.
The village ground is very wet, where the flowers, grass, trees, wood in addition to the "ticking" "ticking" sound of dripping water, leaves rolling crystal clear rain drops, draped in "new clothes! ", there is a small puddle in front of the door, the dog licked the water in the small puddle, the chicken came out of the chicken coop, in the yard leisurely foraging for food, the birds "fluttering" "fluttering" flew away. The pigeons also flew in, and the willow by the river is even more beautiful.
What a thunderstorm!
8. Description of the Anyang River Essay Illustration 500 wordsThe beautiful Anyang River
On Sunday, my father took me to the Anyang River to play.
Anyang River is so beautiful! The surface of the river is microwaved, and the water is turquoise and green, green like a piece of emerald. The river flows to the east, it is really blue water flowing east to this back ah! Huh? There are a few ducks on the surface of the water to catch fish and play. Sometimes there is a small circle on the surface of the river, that is the small fish in the race to jump high. There are also people washing clothes by the river. On the south bank of the river is the beautiful huanshui park, and on the north bank of the river there are green belts and leisure squares. The willow tree there grows out the tender yellow leaves; the grass there is green; the spring flowers there blow the golden trumpet; the holly there grows out the bright green new leaves. There are so many flowers and trees! This is a beautiful place!
But there is a sewage outlet in the river, dirty water constantly flowing out from there, so that the south bank of the river formed a dozens of meters long pollution belt. There are also all kinds of garbage floating on the river, plastic bags, Styrofoam, and paper boxes. On the bank there are cigarette butts, waste paper, and ash left over from burning fires. These dirty things not only pollute the environment, but also affect the mood of visitors.
Anyang River is very beautiful, but people's awareness of environmental protection is still poor, some people are very unconscious of the garbage thrown there. Let's take action together, start from small things, do not litter yourself, stop others from littering, *** with the creation of a better home!
9. Write a 500-word essay about Niangniang BeachOur hometown is located at the foot of Lushan Mountain, which is a beautiful and beautiful place. We have a lot of attractions here, there is a colorful Lushan Forest Park, there are light and strange Jiu Tian Cave, there are fragrant and charming Peach Blossom Island, and that the Milky Way is separated by the Cowherd and Weaving maiden scenic spot. But I think the most beautiful is the water park.
The Yiyi River Source Water Park is 9.75 kilometers long from the Yiyuan Ape Man Site at the foot of Mount Lu to the confluence of the Mantis River and the Yiyi River.
In the bright and sunny days of spring, we came to the water park, where the river is very clear, a breeze, the river surface shimmering, a circle of ripples, there are many small fish in the river free to play, play. Water Park on both sides of the colorful flowers, colorful, beautiful, beautiful red, fighting; both sides of the grass, here a bush, there a cluster, vibrant, green grass.
Waterview Park can be more beautiful at night! Hundreds of colored lights on both sides of the highway, open in the blink of an eye, reflected in the water, plus the neon lights of the high-rise buildings, decorative lights, colorful, bright lights, formed a "sea of lights, the world of light".
But the most wonderful is the water park fountain, you see! That countless water columns in the sky evenly sprayed, in the light of the irradiation, changing a variety of patterns, as if the curved rainbow; as if the colorful pearl curtains; as if the beautiful peacock screen; as if the beautiful fairy scattered flowers ...... is really colorful, colorful, beautiful!
I am proud of the "sky blue, green, clear water, bright lights, cool" water park.
I am proud of the water park.