Water is the foundation of all kinds of life on the earth, and its changes and movements have created our world today. On the earth, water is constantly circulating. The water in the ocean and on the ground is heated and evaporated into the sky. The water vapor moves to other places with the wind. When they encounter cold air, they form precipitation and return to the earth's surface. There are two kinds of precipitation: one is liquid precipitation, which is rain; The other is solid precipitation, which is snow or hail. The precipitation that falls on the earth's surface in the form of solid in the atmosphere is called atmospheric solid precipitation. Snow is one of the most important forms of atmospheric solid precipitation. In winter, precipitation in many areas of our country appears in the form of snow. Because the size, shape and density of the snow falling on the ground are different. Therefore, the level of meteorological snowfall is measured by the water after the snow melts. Meteorologically, snow is generally divided into four grades according to the precipitation within 24 hours: 0. 1-2.4 mm snow is called light snow; 2.5-4.9 mm snow is called medium snow; 5.0-9.9 mm snow is called heavy snow; 10mm (including10mm) snow is called blizzard. Judging from the precipitation, even the magnitude of blizzard is only equivalent to moderate rain in rainfall. It is roughly estimated that snow with a depth of 10 mm can only melt into water with a depth of10 mm. ..

Supplement: There are many kinds of atmospheric solid precipitation, including hail, sleet and ice particles that can cause great harm. Due to the difference of meteorological conditions and growth environment in the sky, all kinds of atmospheric solid precipitation are caused. The names of these atmospheric solid precipitation vary from place to place, from person to person, varied and extremely inconsistent. For convenience, the International Ice and Snow Committee under the International Hydrological Association held a special international conference in 1949 on the basis of consulting experts from various countries, at which the proposal of "Concise Classification of Atmospheric Solid Precipitation" was adopted. This concise classification divides atmospheric solid precipitation into ten types: snowflake, star snowflake, columnar snowflake, needle snowflake, multi-branch snowflake, axial snowflake, irregular snowflake, graupel, ice particle and hail. The first seven kinds are collectively called snow. Why can't the last three be called snow? It turns out that there are two processes for gaseous water vapor to become solid water. One is that water vapor first becomes water, and then water condenses into ice crystals. Another is that water vapor directly becomes ice crystals without water. This process is called water condensation. Therefore, snow is solid precipitation formed by condensation of water vapor in the sky.

[Edit this paragraph] Dictionary Interpretation

Grue snow;

Xue Xu (1) knows. Save the sound of rain, coma and coma. Original intention: When the water vapor in the air cools below zero degrees Celsius, some of it condenses into ice crystals and falls from the air, which is called snow.

(2) with the original meaning [snow]

The road is muddy and difficult to walk, and people are thirsty and hungry. -"Poetry? Xiaoya? Choose the EU

Spring is chilly like rain, and Yu Ning is like snow. -Xie Huilian's Fu Xue is annotated with The Five Classics as a Mirror.

The level is heavy snow. -"Zuo zhuan"? Nine years of seclusion "

Hemp clothes are like snow. -"Poetry? Cao Feng? Mayfly swimming

[Meng Dong Moon] Autumn has come, and from time to time there will be snow and frost, and from time to time there will be land erosion. -Book of Rites? Monthly order

All my life, the color is white. -Du Fu's poem "Northern Expedition"

(3) Another example is the firefly window in the snow case (metaphor for studying hard); Red in the snow (that is, red claws of snow mud); Snow wave paper (a kind of rice paper with wavy dark lines)

(4) metaphor white [white]

Snow coat, snow hair, jade mouth, fish in the shadow of the stream. Don? Du Mu's Egret

Have you seen the lovely hair in the bright mirror in the high room, although it is still silky black in the morning, it turns into snow at night? -Li Bai's "Into the Wine"

(5) Another example is snow (silver); Snow training (color like white silk); Snowflake silver (silver); Snow muscle (skin as white as snow); The color of snow (white)

(6) Metaphor is noble but not clear.

Pine and pine, snow and rope. -Former Shu? Guan Xiu sent Taoist Jiang to Nanyue.

Ten years later, first frost's bones are still healthy. Song? Yang Wanli's poems

Pine and pine, snow and rope. Don? Guan Xiu sent Taoist Jiang to Nanyue.

(7) Another example: Siegel (metaphor for noble character); Xiaoxue (indifferent and unenthusiastic)

(8) Surname

snow

slow

(1) snow [snow]

When it began to snow, five places were congratulated. -Shi Shuo Xin Yu

(2) Another example is: visiting Pu on a snowy night (going to Zhao Pu's home to discuss state affairs on a snowy night); Xuefeng (Xuefeng); Snow clouds (snow clouds)

(3) Clean up the snow [wipe it clean; Turn a new leaf]

The doctor planted auxiliary wings to see Gou Jian, the king of Yue, and got revenge. -"Huainanzi"? General theory

(4) Take another example: Zheng Xue (corrected by Zhao Xue); Snow ballads (words to wash away snow ballads)

(5) wiping; Dry [wipe]

Xiaomi is not rice, but snow peach. -"Everything is ready"

Some words can't be said, and Xue cried and thought of Doris. Don? Li Bai's "Li Shui Road Crys Rebecca"

(6) Another example: snow tears (wiping tears); Snow removal (cleaning); Snow annoyance (eliminating boredom); Snow tears (wiping tears); Snow peach (peach polishing)

Snow white. Snow white.

Snow Leopard Xu Yan bà o [Snow Leopard; Snow Leopard 】 Felis uncia, a large cat with excellent patterns in the mountains of Central Asia, has long and dense fur, irregular dark brown stripes in summer and almost pure white in winter (Panthera uncia, also produced in the mountainous areas of southwest and northwest China).

snow disaster

(1)[ snowstorm]

(2) Blizzard

(3) Strong winds carry a large number of snowflakes flying in the air, making the visibility generally less than 1 km.

avalanche

(1) 【 Avalanche 】: A large number of snow blocks fall off the mountain.

(2)[ Avalanche]: A large piece of ice and snow that quickly slides down a hillside or over a cliff.

Bingxuexu

(1)[ ice and snow]

(2) Ice formed by the accumulation of snow, as in a glacier.

(3) White porous ice frozen by semi-melted snow or ice.

Snowmobile Xu chēchē [sleigh; luge

Snow dust Xu chén [Snow dust] Particles of snow carried by the wind.

Revenge Xu ch ǐ 【 revenge an insurance; Eliminate shame]

Take revenge for insulting (someone)

A snow-covered hill or slope.

Ferret Xu diāo[ferret-pole cat] A particularly fierce ferret is a precious rat catcher, which is very similar to wild European chickens and ferrets. It is said that it is a cross between a domestic mink and a pheasant mink.

Snowdrift xuě duī [Snowdrift] Snow.

Snow covers Xu's surface. Snow can protect and nourish the plants below.

Ice cream xuěgāo

(1) [Popsicle]: The popsicle is frozen on the stick.

(2)[ Snow]: A white dessert made of protein, sugar and pulp.

Snow hates Xu Yan hen [raging honor; Revenge] washes away hatred.

pay off old scores

Snowflakes xuch hu ā [snow-flake] Snowflakes falling in the air are mostly hexagonal, like flowers.

Cigar xuě jiā [Cigar] Cigars made of tobacco leaves are thicker than ordinary cigarettes.

Snow crystal: several common ice crystals in snow. Snow crystal is a single crystal. Unlike snowflakes, snowflakes are usually the condensation of many individual snow crystals.

Xuějìng [snow goggles] in snow goggles has two narrow sawdust, which Eskimos use to prevent snow blindness.

Snow roll Xu ě ju m: n [Snow roll] A snow pile rolled up by the wind, generally cylindrical, with concave ends.

The brittle and firm outer layer of a snow shell XUKE frozen in soft snow.

Snow fence XULán [roof guard] A sliding device installed on the roof to prevent snow from invading.

Snow red, snow red, snow red. (Crispi leaves) and mustard greens (mustard greens) have rectangular leaves and bright yellow flowers. Stems and leaves are common vegetables, which are generally pickled and eaten.

An eye for Xu Lidang

(1) 【 as bright as snow 】: as bright as snow.

Distinguishing fluorescent lamp

(2)[ Shiny]: Having a bright appearance, appearance or appearance.

A sharp dagger

Snow Blindxuū má ng [Snow Blindness] photophobia and inflammation caused by unprotected eyes and exposure to ultraviolet rays reflected by ice and snow vilen.

Ni Xuexu Xi m: ní-hó ngzh m: o [traces of the past; Human life is similar to that of migratory birds that leave footprints on the beach. A metaphor for the traces left by the past. It also means that life is impermanent and traces are impermanent.

Snowflakes xuěpiàn [Snowflakes] refers to falling snowflakes.

sled

(1) 【 sleigh; Sleigh]: A vehicle mounted on a pair of sliding devices, usually used to slide on snow or ice.

(2)[ Sled]: Children's sleigh

(3)[ Sled]: A short sleigh, usually used as one of a pair of sleigh connected by a connector.

Snow bridge Xu qiáo [snow bridge] A bridge that spans the snow in the ice gap of a glacier.

Qing Xue Xuěqěng [Lilac; light purple

Snow Mountain Xu chān [Snow Mountain] A mountain with snow all the year round.

To make matters worse, Xu Shi Shdang-ji ā shu ā ng [one disaster after another; To add insult to injury, I suffered again and suffered more serious injuries.

Xueshuixu

(1) [Snow water]: water formed by snow.

(2) [Brother Xue]: Mix snow and water.

Cedar Xu not Xuōs ng[deodar；; Cedar: A Chinese fir (Cedar Cedar) from China, native to East India.

Snow line Xu Xiàn [snow line] The lowest line of permanent snow.

Clear sb.' s false accusations; Redness indicates dissatisfaction]

Xueyuan xuěyuán [Xueyuan; Vast snowfields; Especially when it is covered with snow all year round (as the source of a glacier).

Snow is shining in the clouds. The white light in the sky above the snow is brighter than the light reflected by the ice.

Send charcoal in the snow, Xu Zhen! Ng-sò ngtà n [Giving charcoal in the snow] Giving charcoal to people in snowy days. Help others in time when they are in urgent need.

Only icing on the cake, that is a timely help. -Ming? The surprise of Ling Mengchu's first lettering

I noun 1. (White crystals falling in the air) Snow: Snow Xiong Xue; Melting snow; Zita Law, Zita Law; A heavy snow; The road is covered with snow. The road is covered with snow. It is snowing heavily. It snows heavily. It snowed heavily last night. It snowed heavily last night. 2. (Surname) A surname: Yukime Ⅱ Ⅱ verb (wash away shame, hatred, injustice, etc. Eliminate (a humiliation); Retaliation (mistake): retaliation for insult; Eliminate stigma; Zhao Xue is right and wrong; Prove sb's innocence. Unfair or unfounded allegations; repair

Xue xuying: ㄒㄩㄝˇ

(1) White crystals falling in the sky, mostly hexagonal, are condensed when the water vapor in the sky cools below zero degrees Celsius: ~ flowers. ~ mountain. ~ give timely help to others when they are in trouble.

(2) wash away, remove: revenge ~ hatred. For the country ~ shame. Rehabilitate ~.

(3) Wipe: "Yan Zi laughs alone and cares about Yan Zi in public." .

(4) surname.

[Edit this paragraph] Si Nuo's close relatives.

In summer, in mountainous areas, there are often many supercooled water droplets frozen around the crystal nucleus in the sky, forming a white and dim round particle. Meteorology calls this kind of thing graupel, and in many places it's called Michelle or snow graupel. Generally, the diameter of graupel is between 0.3 and 2.5 mm, which is brittle and easy to break. Polonium does not belong to the category of snow, but it is also a kind of atmospheric solid precipitation.

Ice particles and hail In summer, in the northern plain, we often encounter two other kinds of atmospheric solid precipitation, namely ice particles and hail. Ice particles and hail are relatively large translucent ice beads formed by flowing water droplets freezing around condensation nuclei layer by layer. Meteorology, the particle size less than 5 mm is called ice particles, and the particle size greater than 5 mm is called hail. Hail brings great harm to agricultural production. According to records, the largest hail in the world is bigger than a fist, with a diameter of over 1 0cm and a weight of over1kg.

Frost and rime In addition to atmospheric solid precipitation, another kind of "ground growth type" solid precipitation often appears on the ground, which is frost, rime and rime. Although these solid precipitation are not atmospheric solid precipitation, they are only formed by condensation, crystallization and freezing of surface water vapor. But these solid precipitation also have a great impact on human production activities. A small ice flower in first frost has six petals, some of which release a beautiful little lateral tongue like Su Hua, some are round, some are arrow-shaped, or serrated, some are complete, and some are lattice-shaped, but they are not beyond the scope of six petals. "

In China, as early as 100 BC in the era of Emperor Wendi of the Western Han Dynasty, there was a poet named Han Ying who wrote a biography of Han Poetry, which clearly pointed out that "there are six snowflakes everywhere."

The basic shape of snowflakes is hexagonal, but there are almost no two identical snowflakes in nature, just as there are no two identical people on earth. Many scholars have observed thousands of snowflakes with microscopes. These studies finally show that it is impossible to form snowflakes with the same shape and size and partial symmetry in nature.

Among these observed snowflakes, even the regularly symmetrical snowflakes are deformed. Why do snowflakes deform? Because the water vapor content in the atmosphere around snowflakes can't be the same in all directions, as long as there is a slight difference, the side with more water vapor content always grows fast.

There are many collectors of snowflake patterns in the world. They collect all kinds of snowflake photos like stamp collectors. An American named Bentley took nearly 6,000 photos in his life. Soviet photographer Siger Mountain is also a photographer of snowflake photos. His charming works are often used as models of structural patterns by artists. Japanese Nakatani Yoshijiro and his colleagues worked hard for 20 years, shooting and studying thousands of snowflakes in the cold room of the laboratory of Hokkaido University in Japan and in the tent on the snowfield in northern Japan.

However, although snowflakes have various shapes, they remain unchanged, so scientists may classify them into the above seven shapes. Among these seven shapes, hexagonal snowflake and hexagonal prism snowflake are the most basic forms of snowflake, and the other five are only the development, transformation or combination of these two basic forms.

[Edit this paragraph] The influence of snow on human health

In winter, it snows endlessly. People often ignore the role of snow when watching Yushu Qionghua. Snow has many benefits to human health. Compendium of Materia Medica has long recorded that snow water can detoxify and cure the plague. There is a folk prescription for treating fire burns and frostbite with snow water.

Taking a bath with snow water often can not only enhance the resistance between skin and body, reduce diseases, but also promote blood circulation and enhance physical fitness. Drinking clean snow water for a long time can prolong life. This is one of the "secrets" of the old people who have lived in the deep mountains and forests for a long time.

Why does snow have such strange functions? Because snow water contains less heavy water than ordinary water 1/4. Heavy water will seriously inhibit the life process of living things. After testing, fish will die quickly in water containing 30-50% heavy water. The most basic condition for the formation of rain and snow is the existence of "condensation nuclei" in the atmosphere, and solid impurities such as dust, coal particles and minerals in the atmosphere are the most ideal condensation nuclei. If meteorological factors such as water vapor and temperature in the air reach certain conditions, water vapor will condense into snowflakes around these condensation nuclei. Therefore, snowflakes can clean a lot of pollutants in the air. So every time after the heavy snow, the air is particularly fresh.

According to the measurement, the density of new snow is generally 0.05-0. 10g per cubic centimeter. Therefore, the reflectivity of ground snow to sound waves is extremely low, which can absorb a lot of sound waves and help reduce noise.

[Edit this paragraph] The role of snow

"Xue Rui heralds a bumper harvest year" is an agricultural proverb widely circulated in China. In the north, a thick layer of loose snow is like covering wheat with a quilt to keep out the cold. Nitrogen contained in snow is easily absorbed and utilized by crops. The low temperature of snow water can freeze the overwintering pests on the surface and bring benefits to agricultural production. So there is another agricultural proverb, "wheat covers three layers in winter and sleeps with steamed bread in the next year."

Snow has a wide range of functions, but it is of great benefit to mankind. First, it is beneficial to the growth and development of crops. Because of the poor thermal conductivity of snow, covering the soil surface with a layer of snow cover can reduce the diffusion of soil heat and block the invasion of cold air on the snow surface, so the crops protected by snow can survive the winter safely. Snow can also store water for crops. In addition, snow can enhance soil fertility. According to the determination, every 1 liter of snow water contains about 7.5 grams of nitride. Snow water permeates the soil, which is equivalent to applying nitrogen fertilizer once. Feeding livestock and poultry with snow water and irrigating crops can obtain obvious benefits.

Snow is both beneficial and harmful to people. In mid-spring in March and April, if it suddenly snows because of the cold wave. It will cause severe cold. Therefore, the agricultural proverb says, "La Xue is a treasure, but Chun Xue is not good."

[Edit this paragraph] Thermal insulation function of snow

Snow is like a wonderful carpet, covering the earth, so that the temperature of the ground will not drop too low because of the cold in winter. This heat preservation effect of snow is inseparable from its own characteristics.

As we all know, it is warm to wear a cotton-padded jacket in winter. Why is it warm to wear a cotton-padded jacket? This is because the porosity of cotton is very high, and the pores of cotton are filled with a lot of air, which has poor thermal conductivity. This layer of air prevents the heat of human body from spreading outward. The snow covering the breast of the earth is very similar to cotton, and the porosity between snowflakes is very high. It is this layer of air that drills into the pores of the snow to protect the ground temperature from falling very low. Of course, the thermal insulation function of snow changes with the density at any time. It's like wearing a new cotton-padded jacket, which is especially warm, and the old cotton-padded jacket is not very warm. The density of fresh snow is low, and there is a lot of air stored in it, so the heat preservation effect is particularly strong. Chen Xue is like an old cotton-padded jacket, with high density and weak heat preservation effect, because there is less air stored in it.

Why does the more air an object stores, the stronger the heat preservation effect?

This is because air is a bad conductor. As we know, any object itself can transfer heat, and this property of transferring heat is called the thermal conductivity of the object. Among several common substances in nature, air has the worst thermal conductivity. Therefore, the more air an object contains, the worse its thermal conductivity. Because the amount of air contained in snow changes greatly, the thermal conductivity of snow also changes greatly. Generally, the newly fallen snow has large pores and the best heat preservation effect. In the late stage of snow melting in spring, snow is soaked by water, and its thermal conductivity is closer to that of water, so the thermal insulation effect of snow tends to disappear.

[Edit this paragraph] Snow erosion

Erosion caused by frequent melting and frost heaving of snowfields in periglacial climate. Snow erosion occurs in polar and sub-polar regions without ice sheets, as well as in alpine regions below the snow line and above the tree line. The annual average temperature there is about 0℃, which belongs to permafrost region. On the one hand, the alternate freezing and thawing of the edge of the snowfield destroys the surface material through ice cracking; On the one hand, snow melting will take away the crushed fine substances, so snow erosion includes two functions: denudation and transportation. With the deepening of the bottom of the snowfield and the expansion of its periphery, a wide and shallow basin-shaped concave land with small peripheral slope is gradually formed on the hillside, that is, the snow melting concave land. Its shape, origin and spatial distribution are different from those of ice buckets, but they are related. When the climate becomes cold and the snow line drops, the snow-eroded depression can develop into an ice bucket; On the contrary, when the climate warms and glaciers recede, ice buckets can degenerate into snow-melting depressions. Under different natural and geographical conditions, the way and speed of snow erosion are different. Where the latitude is low, the precipitation is high, and the freezing and thawing days are many, the snow erosion rate is faster, and the snow erosion is deep and large. For example, snow erosion is very common in Xiaoxing 'anling area of Northeast China. On the contrary, snow erosion is weak in places with high latitude, little precipitation and low temperature in summer. The influence of ground slope is: the slope is steep > 40, and the snow field is not easy to exist; Snow erosion on the flat land is slow; When flying out at high speed, you can kill people. Planes are most afraid of hitting birds in the air, because high-speed planes are often hit by birds and break the front cabin glass.

The impact of the avalanche is amazing. The avalanche with high speed can bear 40 ~ 50 tons of force per square meter on the surface of the hit object. Nothing in the world can withstand such a huge impact. Even a lush forest will be swept away like a barber clipper when it encounters a high-speed avalanche.

Another cause of avalanche disaster is air billow caused by avalanche. In the process of high-speed movement, the avalanche body can cause violent oscillation of the air and generate powerful air churning in front of the avalanche faucet. This kind of air churning is somewhat similar to the shock wave when the atomic bomb exploded, and it is very powerful. The tumbling in the air caused by the Peru 1970 avalanche raised rock fragments on the ground and caused a strange "stone rain" nearby.

Avalanches may be stopped where steep rocks or valleys turn sharply. However, the avalanche air billow is hard to stop, and it will continue to climb mountains and mountains along the direction of avalanche movement. Therefore, the range of action of avalanche air billow is much larger than that of avalanche body. Avalanches in air billow can also destroy forests, houses and other engineering facilities. When it crosses the traffic line, it can even overturn the vehicle. People encounter it, even if they can't scrape it off, they will be suffocated by it.

Avalanches, like wars, bring endless disasters to people, and there seems to be an indissoluble bond between them. There are many wars related to avalanches in history.

In ancient North Africa, there was once a very famous military power called the Carthaginian Empire. Later, due to conflicts of interest, this empire fought many wars with the Roman Empire on the northern shore of the Mediterranean. In 2 18 BC, Hannibal the famous Carthaginian was ordered to make an expedition to the Roman Empire. He commanded 38,000 infantry, 8,000 cavalry and 37 elephants, bypassed Spain and France, and crossed the snowy Alps at the end of 10. Because Hannibal's horses lacked the basic knowledge of snow and avalanches, his troops were confused by avalanches in the Alps and suffered heavy losses. Eighteen thousand soldiers and two thousand war horses died, and several African elephants were buried in Xue Hai.

In modern times, the French emperor Napoleon prepared to invade Italy separated by the snow-capped Alps. Napoleon was much cleverer than Hannibal. He first sent spies to the mountains for reconnaissance. The spy came back trembling and said, "Maybe it will pass, but …". Napoleon immediately stopped the spy from going on: "The longer the better, there will be no buts. Go to Italy immediately! " "1796, Napoleon personally led 40,000 troops, arranged in a 30-kilometer long snake formation, and crossed the snowy Alps from northwest to southeast. Although Napoleon made full preparations in advance, the avalanche in the Alps buried nearly a thousand of his soldiers.

During the First World War, Italy and Austria fought in the Troll region of the Alps, and the number of people killed by avalanches on both sides was no less than 40,000. Both sides often deliberately bombard the snowy hillside with artillery, creating artificial avalanches to kill the enemy. Later, an Austrian officer lamented in his memoirs that "the Alps in winter are more dangerous enemies than the Italian army."

[Edit this paragraph] Snow Proverb

A heavy snow and a heavy rain in winter (Hebei). The first snow in winter, the first snow in winter (black). It snows heavily in winter (Kyrgyzstan). Snow covers the ground, and two grains of (Hubei) snow will take 100 days (expensive). It rained after the first snow 120 (the snow in the south of Liao River is beautiful. That's the news of youth that is still looming, and it's the skin of a very strong virgin. In the snowfield, there are blood-red camellias, single-petal plum blossoms with dark green in white and wintersweet with dark yellow chin; There are cool green weeds under the snow. Butterflies really don't exist; I really can't remember whether bees come to collect honey from camellia and plum blossoms. But my eyes seem to see bloom on the snowfield in winter. Many bees are busy flying, and I can hear their buzzing.

Children's hands, red with cold, are like purple bud ginger, and seven or eight of them get together to make snow arhats. Because it was unsuccessful, whose father also came to help. Lohan is much taller than children, although it is only a bunch of small tops and big bottoms, and finally it is unclear whether it is a gourd or a Lohan; But it's white and bright, and it's glued together with its own water, and the whole ground shines. The children made his eyes with longan seeds and stole rouge from his mother's powder and put it on his lips. This time it's really a big arhat. He just sat in the snow with burning eyes and red lips. The next day, several children came to see him and asked him. By the way, he clapped his hands, nodded and smiled. But he finally sat alone. Sunny days come to soothe his skin again, and cold nights freeze him and turn him into an inconspicuous crystal shape; The continuous sunny days made him want to know what it was, and the rouge on his mouth gradually faded.

The snowflakes in the north, flying around, will always be like powder and sand, never sticking together, and will retreat on the house, on the ground and on the hay. That's it. The snow on the house has faded because of the warmth of the fire in the house. In addition, on a sunny day, a whirlwind suddenly came. It flew vigorously, shining brightly in the sun, like a fog with flames, spinning and rising, permeating space; Let the space rotate, rise and twinkle.

In the boundless wilderness, under the cold sky, the shining soul of rain is spinning and rising. ...

Yes, it is lonely snow, dead rain and the soul of rain.

What Si Nuo knows best is Lu Xun's prose poetry collection Weeds. Its scenery description is meticulous and vivid, and its words are accurate. Describe the snow scene in the south of the Yangtze River and the snow scene in the north, and reflect the author's tendency in comparison. The snow in the south of the Yangtze River is beautiful, but it is warm and beautiful. Comparatively speaking, the most valuable thing is the snow in the north, struggling alone in a lonely situation. This emotional orientation needs careful analysis when reading. Lu Xun's language style is very unique. For example, after describing the snow in the south of the Yangtze River, he used a harsh "but" to describe the snow in the north. It seems that there is no need for a turning point, but after adding this "but", the emotional tendency is more obvious. This point needs to be carefully understood.

Wonderful words and sentences

Because of this, there are also many poems about snow by literati in past dynasties. Xie Jin Daoyun once wrote in the poem "Ode to Snow": "The difference between sprinkling salt in the air can be simulated, if catkins are due to the wind." Comparing snow to salt in the air, it seems that the wind blows catkins all over the floor. The poem "How to Deal with Snow in the Garden" in the Tang and Song Dynasties said: "I don't know if it was a happy day today, but it was Lin bloom last night." He said that he didn't know there were snowflakes falling in the yard today. He thought there were flowers on the branches of the yard last night, which is a vivid and appropriate metaphor. Zhang Songyuan's poem "Snow" wrote: "Yulong lost 3 million, and broken scales flew all over the sky." The jade dragon here describes flying snow, and the broken scales describe snowflakes flying like scales falling one after another. Geng wrote in his poem Snow