I believe that everyone will inevitably come into contact with composition, especially the most basic and common expository essay in writing. The center of the expository essay is clear and prominent, the article is scientific, and the language is accurate and vivid. How to write this type of composition? Below is the explanatory text about snow that I carefully compiled. I hope it will be helpful to everyone. Explanation of Snow 1

"It's snowing, it's snowing!" Amid the cheers of the children, Grandpa Dong took his children, Little Snowflakes, scattered on the yellow land. Beautiful snowflakes are falling in the wind. Every piece is crystal clear and white and flawless. They are like angels sent from heaven, coming to kiss this ancient earth.

The cold wind scraped my face like a knife. He seemed to be scolding Snowflake for his naughtiness and sudden arrival. But the scolding didn't seem to work on them. They didn't seem to hear it. They ran to the left for a while, played to the right for a while, circled in the sky for a while, hugged the earth for a while, and got into the puppy's nest. It was such a joy.

Large tracts of snowflakes are like white butterflies, flying all over the sky, freely. I stretched out my hand and wanted to catch a piece, but I couldn't catch it. It was so naughty. Finally, a piece fell into the palm of my hand. As soon as it landed on it, it disappeared. I thought to myself, maybe he was shy. I looked up at the snow, and it fell on my face again, as soft as cotton, giving me a refreshing feeling.

The sky is full of snowflakes, flying around like catkins in spring. In an instant, the eaves of the courtyard, the stone table, and the puppy's nest were all covered with a silver coat. The snow is getting heavier and heavier, and dense snowflakes are falling down one after another, covering every place. Shake the pine trees gently, and the snow will immediately cover you.

The snow gradually became lighter, and there were a few cotton-like snowflakes floating in the air. The hexagonal snowflakes fell gently on the tip of my tongue. The cool snow water kept flowing and flowed into my heart.

After a while, the snow stopped. This silver-white blanket decorates the courtyard beautifully. Looking to the far end, the sky seems to be connected with the earth, and the eyes are covered with silver. Walking on the soft snow, there is a crunching sound. It seems like there is only tranquility left in the world and a series of clear footprints left by me.

Looking at the eaves, there seems to be a beautiful hat on the roof, which is very interesting.

Excited, I ran out of the house and bumped into the snow. Although it was a bit cold, coming from a city, I had never seen snow like this. The birds on the branches are chirping, as if to accompany this beautiful winter. The children in the snow had a great time playing. Some were making snowmen, some were having snowball fights, and some were drawing on the natural drawing board with wooden branches. There is another scenery on the pure white snow. There are traces of snowflakes on the child's body, falling on the head like a hat. Falling on clothes adds some playfulness. When it falls on the hand, it feels like wearing a pair of gloves.

Slowly, the sun broke through the heavy fog and appeared in front of us. Snow is still the same, always with a smiling face. Are they grieving? No, they are proud. They are enjoying the last moment of carnival. They have completed their mission and spread joy to the world.

Snow seems to be the most precious gift that winter gives people, isn't it? Snow's explanatory text 2

If I were asked to paint a color for the four seasons, I would paint green for spring, because green represents vitality; I would paint red for summer, because red represents the scorching sun. ; I will paint golden yellow in autumn, because golden yellow represents the abundant fruits; I will paint white in winter, because white represents flying snowflakes - although the color of snowflakes in winter is the most monotonous, it is my favorite.

Snowflakes add a lot of fun to us in winter. Winter becomes more beautiful because of snowflakes, and enjoying snow also makes people feel happy. The snowflakes began to fall, light, thin, soft and small, just like the noble white dove gently shaking its wings, and the small feathers slowly fluttered. Then the snowflakes became larger and more numerous, and snow began to accumulate on the ground, getting thicker and thicker. It was like someone shaking the jade tree and Qionghua in the sky, and the white petals fell one after another. Later, the snow fell even harder. Granny Feng blew a gentle breath, and the little snowflakes began to fight and play happily with each other in the air. They were in groups and clusters, like countless torn cotton balls rolling in the air. At this time , the whole world became confused, as if shrouded in heavy fog.

If you reach out to catch a snowflake, you will find that it is strange. Each snowflake is an extremely beautiful picture. Although they are all hexagonal, they are all unique and have different styles. Some are like bright little stars, some are like thin dressing needles, and some are like open six-sided umbrellas... It's really There are so many different shapes and forms, so beautiful. The heavy snow is flying, not only like a goddess scattering flowers, but also like countless white butterflies flying in the sky, and like catkins rolling all over the sky and flying in the wind!

Large swaths of snowflakes continue to slowly and leisurely fall from the sky It fell, making a rustling sound on the ground. Night fell, and the mountains, rivers, fields, and villages were all shrouded in white snow. The next day the whole world was dressed in silver, so beautiful and charming! Ah, I love the messenger of winter - snowflakes! Explanatory text of snow 3

Snow is usually white in our minds , pure, flawless.

But do you know how it was formed? If you don’t know, let me tell you!

Snow in English is snow, which is snowfall composed of a large number of white opaque ice crystals (snow crystals) and their polymers (snow masses).

Snow crystals mainly grow in size by sublimation in the clouds. First, ice crystals are produced through the action of ice nuclei in cold clouds, and they grow into snow crystals through condensation. Later, they can also grow by colliding with frozen supercooled water droplets. When the snow crystals collide with a large number of supercooled water droplets, their shape will change. Snow crystals have various shapes, which are related to the temperature and humidity of the environment in which they grow.

Snowfall is made up of a large number of snow crystals of different sizes, usually smaller ones. In order to describe the size distribution characteristics of groups of snow crystals falling at the same time, the spectrum of snow crystals or the spectrum of solutions after melting snow crystals is commonly used.

Most snow falls from nimbostratus clouds and altostratus clouds, and the degree of precipitation is relatively slow. Snowfall from cumulonimbus clouds in cold weather has falling characteristics and is called snowfall.

Most of our common snowflakes are hexagonal. The reason why there are so many patterns is because ice molecules have the most hexagonal shapes. If the water vapor supply is the most sufficient, the sublimation will grow fastest, so more will form. Branch-shaped or star-shaped snowflakes, coupled with the constant movement of ice crystals, the temperature and humidity conditions where they are located are also constantly changing, so that the growth rates of various parts of the ice crystals are inconsistent, thus forming a variety of snowflakes.

Snow has many effects on human health: regular bathing with snow water can not only enhance the resistance of the skin and body and reduce diseases, but also promote blood circulation and enhance physical fitness. It also has many medical effects : Remove fire, improve eyesight, lower blood fat. It can also treat burns and prevent frostbite.

Snow also has many effects on crops: Snow is beneficial to the growth and development of crops. Snow is a material with good insulation effect. It can protect plants from frostbite in the cold winter. In the coming spring, the melted snow water can provide food for crops. Vegetation provides a good water supply. Stagnant water can also save moisture for crops. Additionally, snow enhances soil fertility.

This is the role of snow. Do you understand snow better after reading it? Explanatory text on snow 4

In people's eyes, winter is often the most boring season, but don't forget that even boring things can have an attractive side, such as snow in winter. The first snow every year is winter’s gift to people. The old man has mixed feelings about this gift; the adults are extremely grateful for this gift; the children have a special liking for this gift; and I cherish this gift even more.

The first snow this year came quietly when we were in class. It doesn't want to disturb us, but it wants to give us an unexpected surprise. When we discovered it excitedly, it had been dancing in the air for a long time, quietly waiting for the bell to ring, looking forward to meeting us again and playing with us again. Snow had been waiting hard for a year. It visited every corner and turned the whole city into a castle in a fairy tale. All things also received a gift - the winter cotton jackets carefully prepared by Snow for them. This day belongs entirely to snow. It will express its creativity freely. Although it has not received professional training, it can still enter this painting as a professional painter. Who would think it is boring? What about boring?

Snow, that's it. It never greedily possesses the whole spring like green, nor does it always visit the earth like rain, nor does it act like a naughty child like wind. As long as it has what it deserves, it will be satisfied.

I remember that when I was young, I was very curious and always wanted to taste the smell of untainted snow in the air. So every time it snows, every time there are snowflakes flying in the sky, I stand in the yard, open my mouth wide, spin on my back facing the sky, and run after the snowflakes. No matter how cold the weather is, no matter how strong the wind is, it can't stop my desire for the taste of snow, and let the snow drift into my mouth. But every time the results were not satisfactory, and my longing heart was not satisfied, but I never lost heart and waited for the arrival of snow again and again. The yard was cold on a snowy day, and I was the only one there pursuing the goals in my heart. Friends say that I am stupid or even naive, but I don’t think so because I never give up on the goals in my heart.

Snow is worth pursuing, but it will never belong to me. Snow belongs to everyone. Explanatory text of snow 5

Looking forward to, looking forward to, the first snow since the winter of 2010 has arrived as promised.

A hint of coolness fell on my face, looking up at the sky, small snowflakes were drifting to the earth. Perhaps it was because I had been looking forward to it for so long, but my heart suddenly surged with enthusiasm: Joy? move? Can't tell.

After a while, the snowflakes became bigger and they hurriedly fell into the arms of their mother. Because the elf heard the call of the seedlings and heard the farmer's prayer. The snow elves are dancing gracefully, and all living creatures are cheering for joy. It's like brothers and sisters who have been separated for a long time are reunited. I don't know who set off firecrackers, and the crackling sound jumped between heaven and earth. At that moment, everything became spiritual and changed the human world. I also want to dance for the snow and sing on the snow.

After some time, the world has changed. The bare branches were dressed in white dresses, and the parched earth was covered with a white velvet blanket. Even the usually lifeless holly showed full of vitality against the backdrop of snow.

Opening the window, the cool air rushed in. The slight moisture moistened my eyes and my heart.

In the evening, the snow gradually became lighter. The usually pale concrete road was dyed ink by melted snow. Looking up, the dark path is lined with white snow on both sides. Different colors shine in the hazy night, smudged out, like a careless ink painting.

Walking on the road, there was a "papa" sound under my feet, and water splashed everywhere, splashing the hope of farmers and the vitality of spring. Suddenly, the sound of my daughter's play came to my ears. The snowballs hit me and spread out. Occasionally, snow accidentally slips into my neck, giving me a chill, but it is extremely satisfying.

In the dead of night, when I heard the light snow falling, my thoughts drifted away again.

If this snow is a euphemistic melody, then the snow in Heilongjiang is a majestic poem. The overwhelming, breathless madness remains deep in my memory. It was freezing and snowy outside, but warm inside. We sat around the red iron stove. There were frozen pears and persimmons beside the stove, and potatoes were roasting on the stove lid. After a while, the pear melted. I bit open a small piece of skin and took a sip of water. It was cool and sweet, refreshing my heart and spleen. The scent of potatoes lingers in the air. Sometimes my mother tells us stories, and more often, we read quietly. Occasionally there was a crackling sound in the stove. Through the misty glass, the wilderness in the distance is endless white, endless ethereal, and endless reverie. Below is the black land, which contains infinite vitality... Explanatory text of snow 6

Snowflakes are a kind of beautiful crystals. They cling together in groups as they fall. Form snow flakes. The size of individual snowflakes usually ranges from 0.05 to 4.6 mm. Snowflakes are very light, weighing only 0.2-0.5 grams each. No matter how light and small the snowflakes are, or how wonderful they are, their crystals are all regular hexagonal shapes. Therefore, the ancients said that "there are five flowers in the grass and six in the snowflakes." How beautiful and light the snowflakes are! I like snowflakes more and more. It would be a joy to see the snow-covered earth and the green trees covered with silver again.

"Auspicious snow heralds a good harvest" is a widely circulated agricultural proverb in my country. In the north, a thick and loose layer of snow is like covering wheat with a quilt to keep out the cold. The nitrogen trapped in the snow is easily absorbed and utilized by crops. The low temperature of snow water can freeze to death overwintering pests on the surface, which also brings benefits to agricultural production. Therefore, there is another farmer's proverb, "Three layers of wheat quilt in winter, sleep with steamed buns on your pillow next year."

Snow has a wide range of functions, but snow has great benefits for humans

. First, it is beneficial to the growth and development of crops. Because snow has poor thermal conductivity, covering the soil surface with a layer of snow can reduce the transfer of soil heat and block the intrusion of cold air on the snow surface. Therefore, crops protected by snow can survive the winter safely. Snow also stores moisture for crops. Additionally, snow enhances soil fertility. According to measurements, every liter of snow water contains approximately 7.5 grams of nitrogen compounds. Snow water seeping into the soil is equivalent to applying nitrogen fertilizer. Using snow water to feed livestock and poultry and irrigate crops can yield obvious benefits.

Snow is good and bad for people. In the mid-spring season of March and April, it snows heavily due to a sudden cold wave. It will cause freezing cold. So the farmer's proverb says: "Wax snow is a treasure, but spring snow is not good."

Friends, after listening to my introduction, do you like and understand snow more?

As the saying goes, "Food is the first priority for the people", I very much agree with this sentence. I can call myself a "little gourmet" because I have a lot of research on food. I can name hundreds of dishes alone.

Beijing’s roast duck, Inner Mongolia’s little lamb, Xi’an, Shanxi? Among so many sweet and delicious delicacies, my favorite is Mapo Tofu in the mountain city of Chongqing. Mapo tofu not only tastes spicy and delicious, but also colorful. The tender white diced tofu stands in a neat "line" on the plate, wearing "clothes" made of bright red. It looks fiery red, like a blazing red flame, with a red flame in the middle. Mixed with some minced meat that is crispy on the outside and tender on the inside, green chopped green onions are scattered on the plate, just like pieces of green leaves. The diced tofu turns into blooming red flowers, which are particularly eye-catching against the green leaves. . From time to time, bursts of tempting fragrance emanate from the plate, which is really mouth-watering!

It seems that the preparation of Mapo Tofu is very complicated, but it is actually very simple: cut the tofu into small square pieces and let them "jump" into the steaming water one by one to heat it up. "Body", fish them out and use them later. Next, cut the meat into very small pieces and crisp the meat pieces with vegetable oil. Then, pour an appropriate amount of oil into the pot, turn on the switch, and add the prepared dried chili peppers, peppercorns and ginger slices into the oil. When the oil reaches 70 or 80 degrees, add the tofu. Dice, add an appropriate amount of starch, turn over a few times, then add appropriate salt, soybean paste, bean paste, a little white wine, and finally cook slowly over low heat for two minutes, and add a little MSG when the pot is about to start. , this Mapo Tofu dish with full color, flavor and flavor is done!

Eating Mapo Tofu is also very particular.

When eating, first put a piece of tofu, dip it in some hot sauce on the plate, put it gently into your mouth and chew it slowly. When you eat it, it will be numb and spicy. This taste will fill your mouth. Any corner. When I eat, I like to lick the hot sauce on the tofu first. Immediately, the numbing and spicy taste of the hot sauce "pounces" into my mouth. Then I eat the tofu. The tender tofu passes through my mouth, smooth and refreshing. This way of eating gives you the unique flavor of Mapo Tofu. If you are lucky, you can also eat a little bit of minced meat, which is crispy on the outside and tender on the inside, which further adds to the flavor of Mapo Tofu and plays a finishing touch.

So, after listening to my introduction, you now have a certain understanding of Mapo Tofu. Is it considered a delicious dish? Alas, I won’t talk to you anymore. A plate of Mapo Tofu is out of the pot. I, the “little one”, am going to try it. Goodbye!

Today I will introduce to you: tomatoes

Tomatoes are an indispensable part of my daily life. My mother wants me to eat one every day. I don't like to eat, but I have to eat. well!

But after eating tomatoes for a long time, I discovered that tomatoes contain more than just the vitamin C we are familiar with. My mother told me that tomatoes are very nutritious. And can it be copied?

I checked the information about tomatoes on the Internet. According to the research of nutritionists, 50g-100g of fresh tomatoes per person per day can satisfy the body's requirements for several vitamins and minerals. needs.

Tomatoes contain "", which can inhibit bacteria; they contain malic acid, citric acid and sugar, which help digestion.

Tomatoes are rich in nutrients and have many functions. They are called the magical fruit in vegetables. It is rich in snow explanatory text 7

Hello! Do you know who "I" am? Ha ha! "I" is the famous cedar tree that is not afraid of the severe cold, is indomitable, stands tall and tall.

"I" is an evergreen tree, more than 50 to 70 meters high, with a diameter at breast height of 3 meters, and a conical crown. The bark is grey-brown, with scaly cracks; the large branches are irregularly whorled and spread out; the annual growth branches are light yellowish brown and hairy, and the short branches are gray. The leaves are needle-shaped, gray-green, 2.5-5 cm long, equal in width and thickness, with several stomata lines on each side, and there are 20-60 stomata on the top of short branches. Dioecious, with a few of the same plant, the male and female cones have different branches; the male cones are elliptical and oval, 2 to 3 cm long; the female cones are oval, about 0.8 cm long. "I" was introduced to China in 1920 and is now mainly distributed in major cities in the Yangtze River Basin.

Looking from a distance, "I" looks like a green pagoda. In spring, "I" look even more green, covered with warm spring light, sucking the sweet spring rain, and dancing in the wind. In summer, the scorching sun scorches the earth, and some of the plants around "me" are wilted, but "me" is still so full of vitality. In autumn, the cool breeze blows, and the leaves of many trees have fallen, but "I" is still green. In winter, the north wind blows and the weather is freezing. In this dangerous and severe environment, "I" is not afraid of the wind, frost, and sword, but still stands tall and unyielding.

"I" is a positive tree and has a certain shade tolerance, but it is best to have sufficient light and heat at the top, otherwise it will suffer from malnutrition; it has strong shade tolerance in the seedling stage. It likes a warm and cool climate and has certain cold tolerance. Large seedlings can withstand short-term low temperatures of minus 25 degrees. Before 1949, the northern limit of cultivation of "my" cedar was in Qingdao. After introduction and trial planting, it can now grow well in Beijing, but it is still It is better to plant in the leeward direction.

"My" family also includes: "Silver Leaf" cedar: the leaves are longer, silvery gray and blue; "Silver Tip" cedar: the tips of the small branches are green and white; "Thick Leaf" cedar: the leaves Short, 2.8~3.1 cm long, thick and pointed, with flat and open branches, slightly drooping branches, magnificent crown, slow growth and good greening effect.

The economic uses of "I" are not small: the material of "I" is dense, solid, corrosion-resistant and fragrant, and not easy to warp. It is suitable for furniture making, shipbuilding, construction, bridges, etc. The wood can also be steamed with sesame oil and smeared with skin velvet, which has the effect of waterproofing.

I love cedar. Although it is not as beautiful and gorgeous as roses, nor can it provide food to people like pear trees, the spirit of cedar that is not afraid of severe cold is worth learning! Explanatory text on snow 8

When I went to school in the morning, the sky was already covered with snow.

At noon, when school was over, it started to snow heavily. I saw pedestrians walking very slowly on the road, and all cars, big or small, moved very slowly. Heavy snow has caused inconvenience to transportation. I walked and walked to my home. As soon as I entered the house, I found that the ground and the house were covered with snowflakes, as if the earth had been covered with a thick layer of cotton-padded jacket. Some children in the yard were having snowball fights, some were building snowmen, and some were playing with snowmen... I couldn't help but join the children's team, and everyone was having a great time! White snowflakes fell from the sky one after another, falling on our clothes, hands, faces, and eyes.

A few naughty children opened their mouths to catch the snow. The snowflakes fell on their tongues and felt cool. It was so fun!

The snow kept falling and falling, and it didn’t stop until the afternoon. There was a vast expanse of white everywhere. It was so beautiful!

It’s snowing! Snow adds a lot of fun to us. I love this beautiful, white snow! Snow's explanatory text 9

Today is the highlight of our trip and also the most tiring day. Because we have to cross a snowy mountain and walk for 6 hours in the forest and snowfields. I have never walked for such a long time, let alone walking in the pure white snow.

We first followed the old man’s guide on a flat road. Every time I saw a large piece of flat snow, I would roll a few times, lying on the snow and really not wanting to get up; but I still reluctantly got up and walked forward in order to catch up with the team. We started walking uphill, and my mother taught me how to use hiking poles to use my strength to reduce the burden on my feet. My feet should be in the hollows. However, this snowy road is really slippery, so be careful and use force every time you take a step. In particular, don't think that the snow on the edge can be used as a support, because it has no place to borrow force. There may be holes underneath some snow, so be careful not to step on them! From time to time there will be areas full of ice on the snowy road, so walk carefully as it can be really slippery. There is a pair of grandparents in our team. They are so good at stopping when they encounter ice. They use trekking poles to sweep some snow and spread it on the ice, which makes walking easier. There were still some very steep places, so they climbed up first, then hugged the tree trunks and pulled us up. Although the crossing was very hard, my feet had no strength, and there was some ice on the soles of my shoes, which caused me to slide down from time to time, but I still thought it was very interesting. Snow mushrooms are constantly appearing on the trunks, and there are different shapes of snow on the branches. In particular, there is an S-shaped piece of snow that looks like a bug lying on it, which is very interesting; there is also a pile of snow that looks like a koala hug. Holding the tree trunk. The glaciers glow slightly green and are extremely beautiful against the white snow; some glaciers are even covered with beautiful ice flowers. After more than 4 hours of walking up the mountain, we finally reached the top of the mountain. The snow on the top of the mountain is the thickest and so flat. I sat down and my whole body was buried in the snow. I rolled and crawled, spreading my hands and feet, swinging, and lying on the snow as a bed.

Going down the mountain is much easier. Every time I reach a slope, I take a few steps back, then rush forward a few steps, squat down, and slide down with a "swish". Sister Lingling imitated my example and started skating too; it felt like it didn’t take long for us to reach the foot of the mountain and reach the place with the thickest snow in China - China’s Snow Country.