1. Tips for health in spring
Eat fish heads for health in spring, because fish are rich in nutrients, and fish heads are the golden part of the entire body of the fish, including the eyes and the fish head. Brains are rich in nutrients, and fish must rely on gills to breathe. The gills are in the fish head. Therefore, the essence of fish lies in the fish head, and the season of the year lies in spring.
Just kidding!
Principles of food nutrition in spring:
According to Chinese people’s habits, the beginning of spring marks the beginning of spring. It is the first of the 24 solar terms in a year. It falls on the 2nd day of the solar calendar each year. Around the 4th of the month. At this time, the temperature gradually rises, the ice begins to melt, and all things in the world, including the human body, after hibernation in the third month of winter, the Yang Qi begins to rise and all things begin to sprout, making people feel a breath of renewal. “The response to spring energy is the way to maintain health” should encourage this message of “emergence”. At this time, the "liver qi" in the human body also rises. Because the liver qi is in full swing, it is not suitable to be depressed but to be relieved. After the rain comes the awakening of insects, after which spring thunder can be heard, and hibernating animals begin to wake up and emerge from the ground. This is again the result of the breath of "life". During the spring equinox, day and night are of equal length, which the ancients called "yin and yang half". By the Qingming Festival, the rainfall has increased, the humidity has increased, grass has sprouted, and spring plowing has begun on a large scale. At this time, the liver qi in the human body is strong, and those who do not take care of themselves properly in winter are prone to febrile diseases in spring. Common chronic diseases such as hypertension, asthma, skin diseases and allergic diseases are easy to relapse at this time. It is also seen that patients with gastric and duodenal ulcers may suffer gastric bleeding due to improper diet. Therefore, fat foods should be avoided in the diet, such as shrimps, bamboo shoots, roosters, seafood, etc. should be eaten as little as possible. According to the above principles, throughout the spring, the principle of food nutrition is to reduce acidity, benefit sweetness and nourish the spleen. Because liver qi is strong in spring, it is easy for the liver qi to attack the spleen earth and cause spleen and stomach diseases, and sourness is the original taste of the liver. Therefore, the sourness should be reduced at this time, and the liver qi can no longer be stimulated to avoid overexuberance. This can protect the spleen from being attacked. Sweetness is the original taste of the spleen. In order to resist the possible invasion of liver qi, adding sweetness to strengthen the spleen can strengthen the body's defense. For example, tangerine peel to soothe liver qi, chrysanthemum to soothe liver qi, and grain sprouts to soften the liver and spleen are all suitable nourishing foods. In spring, nature provides humans with many wild vegetables, such as alfalfa, alfalfa, basil, etc., which have good effects on clearing the liver and improving eyesight. Because the spleen and stomach are easily damaged at this time, you should pay attention to eating less food that is difficult to digest, especially the elderly. For example, you should not drink too much, and cold food, rice dumplings, and sticky and greasy food should be strictly controlled to avoid affecting the spleen and stomach. normal function of the organs. If not properly maintained, liver qi will be damaged whether it is excessive or insufficient. If the liver qi is injured, the heart fire that is due in summer will lose its production. In summer, the heart fire will be insufficient. If the heart fire is insufficient, cold water will take the opportunity to invade and easily cause cold changes. That is, there will be no heat when it should be hot, and the body will not grow long. Medical science calls this phenomenon "reverse spring energy and less nourishment for the elderly."
Tips and taboos for health maintenance in spring:
People put food first. If you eat properly, it is like having a health doctor, always helping you improve your physical fitness and resist various external factors. Similarly, dietary taboos have always been valued by the people. So what are the dietary taboos in spring? Sun Simiao, a doctor in the Tang Dynasty, said: "On the 72nd day of spring, reduce acidity and increase sweetness to nourish the spleen. "Ming Dynasty Gao Lian's "Eight Notes of Zunsheng" also recorded: "In spring, the taste of food should be reduced in sourness and increased in sweetness to nourish the spleen. "It means: When the liver is strong in spring, you should eat less acidic food, otherwise it will make the liver fire more intense and damage the spleen and stomach. At this time, you can eat more food with a sweet and mild taste. Therefore, you can eat more in the spring season:
1. Chinese yam: "warming but not dry, slightly fragrant but not dry", has the effect of strengthening the spleen and stomach and replenishing weakness
2. Spring bamboo shoots: In addition to being rich in protein, It is also rich in minerals, such as calcium, phosphorus, iron and multiple vitamins, and is especially suitable for eating fresh.
3. Pea sprouts: seasonal vegetables, fresh juice for patients with hypertension and diabetes. It is most suitable for drinking.
4. Leek: It warms the middle and promotes qi, warms the kidneys and warms the yang. It has a good effect on soreness and weakness of the waist and knees, impotence and spermatorrhea. It is warm and beneficial to people in early spring. The leeks that are about to be released are the best.
5. Toon leaves: It has the functions of eliminating wind, detoxifying, strengthening the stomach and regulating qi.
The young leaves are eaten as a seasonal vegetable in spring. They are very fragrant and are often eaten as cold tofu and scrambled eggs. However, toon leaves are also "hair-producing substances", so those with serious illnesses should not eat them. Others such as lentils, spinach, cauliflower, coriander, dates, honey, beans, dairy products, eggs, lean meat and fruits are suitable for spring consumption.
6. Wolfberry: Lycium barbarum grows tender seedlings in early spring. The tender seedlings are also called wolfberry or wolfberry seedlings. They have a slightly bitter taste but are very refreshing. They can clear fire and improve eyesight. They are commonly used among the people to treat yin deficiency, internal heat, and sore throat. Dry throat and sore throat, rising liver fire, dizziness, low-grade fever, etc. Lycium barbarum contains myosin, glutamic acid, aspartic acid, arginine, etc., and is very rich in nutrients.
According to the theory of traditional Chinese medicine, there are also some items that should be avoided in spring. For example, avoid eating mutton, dog meat, quail, buckwheat, fried peanuts, fried melon seeds, sea fish, shrimp and spicy food in the third month of spring.
2. This simple story in the bud describes what two fathers did, and what does it mean?
The article "The Story of Giving" mainly talks about: Once upon a time, a man was lost in the desert. He was dying of hunger and thirst.
But he still walked forward step by step with his heavy footsteps. After not knowing how many steps he walked or how long it took, he finally found an abandoned hut.
The house was very dilapidated, and it had obviously been unoccupied for a long time. He walked around the house and found a water pump. He pumped hard, but not a drop of water came out. He was extremely disappointed. Suddenly he saw a plugged kettle filled with water and a sticker on it. A note.
The note said that as long as you pour water into the water absorber, water will come out. He thought about who could go in, but he was afraid that he wouldn't get out of the water.
After much consideration, he finally poured water in, and ended up drinking a full bucket of water. This simple story tells us: as long as we put our own interests aside, we will gain a lot.
Like getting a spring in the desert. When I do things, I always put myself first, and I don’t care about other people’s affairs.
As time went by, I slowly became selfish and indifferent... I remember one time, I was playing with my building blocks with other children. As for me, I wanted to build a very big one. It’s a house, so it needs a lot of building blocks. When I was halfway through setting it up, the building blocks were gone, so I “borrowed” some building blocks from other children. But they wouldn't lend it to me and said they didn't have enough.
When I got angry, I demolished the building block "house" that one of their children had just set up. Used to "build" my big house.
The unlucky child was very sad. But I am still playing happily there.
At this time, I knew that what I did was very bad, and I should not put my own interests at the highest position. Alas, I did something wrong.
3. How to write "Sprouting"
1.
I realized from the sentence marked @1: Children’s nature is lively and innocent, always full of hope. Although he knew clearly that grapes would not grow in this way, he still held on to the hope that the grape seeds would germinate.
His thoughts are not bound by old ideas. He wants to have his own creation and sow his dreams with his own hands! This is a spirit worth learning. .
From the sentence marked @2, I can understand that the boy’s father is a selfish father with a violent personality who does not care about the physical and mental feelings of his children. He only knows how to let his children do some worthless things, and has been ordinary. Life is corrupted, which is deeply harmful to children and is not conducive to their healthy physical and mental growth! 2. @1 If I were a boy, I would say: Yes, I forgot to water them every day.
I believe that these grape seeds you planted will sprout and bloom one day! @2 Because the girl’s father, in order to let the girl complete the miracle in her heart, secretly planted grape branches without telling the girl. He gave the girl the dream of creating miracles.
Instead of destroying your dream with your own hands like your father! 3.
The boy's father: a selfish father who is corrupted by ordinary life and has no regard for the physical and mental feelings of his children.
The girl’s father: He understands his children’s inner feelings and is a kind and kind father.
4. Basic knowledge about the universe
In natural science, the basic discipline that studies the movement, structure, origin and evolution of various celestial bodies in the cosmic environment beyond the earth is called astronomy. Its history can be traced back to the infancy of human civilization. In ancient times, nomadic peoples needed to identify directions when migrating in search of water and grass, and agricultural peoples needed to determine the seasons to sow in season. In long-term practice year after year, they gradually discovered the close connection between these major events that affected their lives and astronomical phenomena such as the sun, moon, and stars. The clay tablets of Babylon, the pyramids of Egypt, and the oracle bone inscriptions at Yin Ruins in China all contain rich examples of the birth of astronomy. Astronomy has always made significant contributions to the progress of human civilization. Copernicus's heliocentric theory in the 16th century liberated natural science from the shackles of medieval theology for the first time; in the 17th century, the classical mechanical system established by Galileo and Newton to study the motion laws of celestial bodies in the solar system is still an integral part of modern engineering science (including aerospace science). ), research on the internal structure and energy of the sun and stars in the 1930s led to the concept of thermonuclear fusion, which provided inspiration for mankind to use nuclear energy; especially in the past half century, mankind's enthusiasm for exploring the universe has continued It has effectively promoted the development of a series of high-tech technologies such as telemetry and remote control, space technology, and computing technology, which directly serve national economic sectors such as global communications, resource surveys, and weather forecasts. The application of these technologies in astronomy has enabled people to understand the universe. Our understanding has advanced by leaps and bounds. For the first time, it is possible to explain the tens of billions of years of evolution from elementary particles to chemical elements, from galaxies to stars, from the sun to the earth, and from protozoa to humans from a unified principle.
The earth we live on is an ordinary member of the solar system. The central object of the solar system is the sun. It is a gas ball with a radius of about 700,000 kilometers and a surface temperature of 6,000 K. Its core temperature is as high as 15 million K, and a nuclear reaction in which hydrogen fuses into helium occurs. The light and heat we need to survive are produced by this nuclear reaction. There are nine planets in the solar system, namely Mercury, Venus, Earth, Mars, Jupiter, Uranus, Neptune, and Pluto. Pluto, the outermost planet, is about 6 billion kilometers from the sun. There are hundreds of thousands of asteroids orbiting between Mars and Jupiter. Smaller objects in the solar system include comets and meteors.
In the clear night sky, there is a band of light stretching across the sky, which is called the Milky Way. In fact, it is a huge celestial system integrated by stars and diffuse matter, called the Milky Way. The luminous part of the Milky Way has a diameter of about 70,000 light-years and a maximum thickness of about 20,000 light-years. It is like a flat rotating discus surrounded by a central protrusion. The sun is an ordinary star in the Milky Way. There are about 200 billion stars in the Milky Way, all connected to each other. Very far apart. Proxima Centauri, the closest star to the sun, is also 4.3 light-years away, which is 60 million times the radius of the sun. In addition to stars, there are many clumps of gas and dust in the Milky Way, called nebulae. Some nebulae contain large amounts of molecules, called molecular clouds, and are often sites where stars form.
Besides the Milky Way, there are billions of huge celestial body systems, which are at the same structural level as the Milky Way, and are collectively called galaxies. The Andromeda Galaxy, the farthest object visible to the naked eye, is one of them. It is 2.25 million light-years away from the Milky Way, but it is still the closest among galaxies similar in size to the Milky Way. The distribution of galaxies in the universe is uneven, some are in pairs, some are in groups, and large galaxy clusters even contain hundreds or thousands of galaxies. Some galaxy clusters have gathered into larger superclusters, and no signs of unevenness have been found between more than 500 million light-years to the 15 billion light-years currently observed.
5. Little knowledge about science and technology for primary school students
1. Why do stars twinkle?
We see stars twinkling, not because of changes in the luminosity of the stars themselves, but because of the obstruction of the atmosphere.
The atmosphere is between us and the stars. When starlight passes through the atmosphere, it will be affected by the density and thickness of the atmosphere.
The atmosphere is not absolutely transparent; its transparency varies depending on density. So when we look at the stars through it on the ground, we will see that the stars seem to be twinkling.
2. Why do people yawn?
When we feel tired, our bodies have produced a lot of carbon dioxide. When there is too much carbon dioxide, oxygen must be added to balance what the body needs. Because these residual carbon dioxide will affect the functional activities of our body, the body will issue a protective response and yawn.
Yawning is a deep breathing action, which allows us to take in more oxygen and expel carbon dioxide than usual, and also eliminates fatigue
6 . Little knowledge about living meteorology
(meteorology) Meteorology is a discipline that treats the atmosphere as the object of research and explains the characteristics of agricultural meteorology from both qualitative and quantitative aspects. It focuses on the study of atmospheric weather conditions and Change patterns and weather forecasts.
Meteorology is a branch of atmospheric science. The science of studying physical phenomena and processes in the atmosphere and their changing laws.
The research field of meteorology is very broad, and the research methods vary greatly. Meteorology is divided into many sub-disciplines: atmospheric physics, synoptic science, dynamic meteorology, climatology and so on.
With the development of production, the application of meteorology has become increasingly widespread, and applied disciplines such as marine meteorology, aviation meteorology, agricultural meteorology, forest meteorology, and pollution meteorology have emerged one after another. The application of modern science and technology in the field of meteorology has led to the emergence of new sub-disciplines, such as radar meteorology, satellite meteorology, cosmic meteorology, etc.
Meteorology is an applied science that is closely related to production and life and involves many disciplines. Edit this paragraph Research tasks 1. Observe and study various atmospheric phenomena, the interaction between the atmosphere and the underlying surface, and the meteorological effects produced by human activities.
2. Explanation Systematically and scientifically explain these phenomena, functions and effects, and clarify their occurrence and evolution rules. 3. Analysis: Analyze, diagnose and predict the weather in the past, present and future based on the recognized laws.
Climate serves the national economy and people’s daily lives. 4. Basis: Explore and simulate the believed weather processes and man-made climate environment in theory and practice, and provide scientific basis for artificially influencing weather and climate.
Edit this history The first person to establish meteorology was the ancient Greek philosopher Aristotle. In his special book on dynamic meteorology, "Meteorological Transactions", he was the first to describe and briefly explain weather phenomena such as wind, clouds, rain, snow, thunder, and hail. This book is the world's earliest meteorological book.
Until the 18th and 19th centuries, due to the development of physics and chemistry and the successive invention of measuring instruments such as air pressure, temperature, humidity and wind, atmospheric scientific research has entered a stage that can be quantitatively analyzed from simple description. In 1820, the German Budland drew the first surface weather map, pioneering modern weather analysis and forecasting methods.
In 1835, the Frenchman Coriolis proposed the concept of wind deflection; in 1857, the Dutchman Beloit proposed the relationship between wind and air pressure. Their concepts became the basis of atmospheric dynamics and weather analysis. . Around 1920, the Pieknes and his sons in Norway proposed a theory called the "Polar Front Theory" to explain weather changes in mid-latitudes.
It has been more than 70 years since this theory was published in the 1920s, but it is still the main theoretical basis for weather forecasting today. It also lays a theoretical foundation for analyzing and forecasting the weather in the next 1-2 days. . In the 1930s, the widespread use of radiosondes truly began the study of atmospheric science in three-dimensional space.
Based on high-altitude weather maps drawn from a large amount of exploration data, atmospheric long waves were discovered. In 1939, Rossby proposed long-wave dynamics, and his theory also made a great contribution to weather forecasting.
By the 1950s and 1960s, the application of computers, weather radar, satellites and remote sensing technology enabled various atmospheric phenomena, ranging from atmospheric circulation to the formation of raindrops, to be analyzed in accordance with physics. It can be expressed in the mathematical form of science and chemistry, which has led to rapid development of atmospheric science. Edit the process of the development of this paragraph. The budding period. The budding period mainly refers to the long period before the middle of the 16th century. The characteristics of this period are that due to the needs of human life and production in military meteorology, some sporadic and local meteorological observations were carried out and some accumulated Perceptual knowledge and experience provide certain explanations for certain weather phenomena.
During this period, China has made many achievements in this field, and is among the leaders in the world. As far back as 3,000 years ago, the oracle bone inscriptions of the Yin Dynasty had written records about wind, clouds, rain, snow, rainbows, clouds, tornadoes, thunderstorms, etc. They also often asked about the weather in the next ten days (called "divination"). And record the actual situation for verification.
During the Spring and Autumn Period and the Warring States Period, it was possible to determine the twenty-four solar terms based on observation records of wind, clouds, and phenology, which was of great significance in guiding the agricultural production seasons in the Yellow River Basin and has been used to modern times. During the Qin and Han Dynasties, books involving phenology also appeared, such as "Lu Shi Chun Qiu", "Huainan Zi" and "Book of Rites". These are the earliest documents on phenology in the world.
Meteorological observation instruments are also China’s earliest inventions. In the Western Han Dynasty (104 BC), three types of wind direction devices, including the bronze phoenix, the copper phoenix and the bronze bird of Xiangfeng, were already popular. By the Tang Dynasty, wind birds were used in fixed places and chicken feathers were used in the army. instrument to measure wind.
It was not until the 20th century in Europe that migratory birds were used to measure winds. In the Western Han Dynasty, the hygroscopic properties of feathers, charcoal and other objects were also used to measure air humidity.
In the Song Dynasty, the monk Zanning (in the 10th century AD) used a soil charcoal hygrometer to predict sunshine and rain. The record of precipitation is also the earliest in China. According to the "Book of the Later Han Dynasty", at that time, all counties under its jurisdiction were required to report rain conditions to the court from the beginning of spring to the beginning of autumn every year. Since then, successive dynasties have been very concerned about the rain conditions in various places. Pay attention to.
Therefore, China has rich records of rainfall, floods and droughts, and has the longest history. Due to the needs of production and life, humans are eager to predict future weather changes, and have accumulated a lot of experience in long-term observation practices.
These experiences are expressed in short rhymes to facilitate memory and application. These are weather proverbs. Chinese weather proverbs are extremely rich. Except for some feudal superstitions, most of them are the crystallization of the experience of working people in the past generations in looking at the sky.
Huang Zifa's "Xiang Yu Shu" in the Tang Dynasty, "Five Elements of the Tian Family" compiled by Lou Yuanli that appeared in the late Yuan and early Ming Dynasties, and "Zhanhou" written by Xu Guangqi in the late Ming Dynasty all summarized the experience of mass weather forecasting 's writings. Abroad, meteorology also sprouted very early. The book "Meteorolosis" (about 350 BC) written by the great Greek philosopher Aristotle in the 4th century BC comprehensively discussed water and air. Issues such as earthquakes and earthquakes also provide appropriate explanations for atmospheric phenomena.
The current foreign name of meteorology evolved from the title of Aristotle's original book. In short, in the budding period of meteorology, China and Greece showed their talents. At this time, in terms of the nature of the subject, meteorology and astronomy were mixed together.
7. Do you have any scientific knowledge? The more the better in about 50 words
1. When the seeds of almost all plants germinate in the soil, their roots always grow underground. Why is this?
In the past, people thought that the roots of plants grew underground due to the gravity of the earth. Later, scientists discovered through research that the top of the root is like wearing a "hat", called the root cap. A large amount of calcium accumulates in the cells of the root cap. It is this calcium that controls the growth of plant roots underground.
The attraction of water
Groundwater is also what attracts roots to grow underground. Moreover, roots tend to grow denser in humid places. I don’t know if I don’t tell you
Some trees growing in swamps have roots that extend upward into the mud.
This is a special respiratory root that can adapt to the lack of oxygen in the mud.
2□ House next to an overpass
Traditional environmental psychology explanation: Affects wealth
Scientific explanation: Traffic is inconvenient, and high-speed vehicles will cause noise and Spiral airflow will have adverse effects on physical and mental health. Years of clinical experience and research have shown that for some sensitive people, living in such a place is easy to cause neurasthenia.
3□ Houses next to high-voltage electricity towers and TV towers
Scientific explanation: The transmitting power of TV towers is very strong, and electromagnetic waves will cause a decline in human immune function. Houses 300 meters away from electricity towers are generally better.
4□ House next to the gas station
Scientific explanation: Because the oil contains a large amount of lead and other harmful substances, and the parking and starting of vehicles next to the gas station are very noisy, there is no Security.
5□ The house opposite the glass curtain wall.
Scientific explanation: Reflection from glass curtain walls creates light pollution, which is detrimental to eye health and can easily cause a variety of eye diseases, such as glaucoma.
6□ House facing the main road
Traditional environmental psychology explanation: The house facing the main road, "evil energy" pours in, making people susceptible to colds.
Scientific explanation: The privacy is not good, and the noise and dust pollution are relatively large.
8. What are the common sense of health in spring and how to take care of the body?
Women should pay attention to the following in spring health care:
1. Daily routine
When spring comes, the skin stretches, peripheral blood supply increases, sweat gland secretion also increases, and the load on various organs of the body increases, while the central nervous system produces a sedative and hypnotic effect, making the limbs feel sleepy. Don't be tempted to sleep in at this time, because this is not conducive to the rise of Yang Qi. In order to adapt to this climate change, you should go to bed early and get up early in your daily life, and often go for walks outdoors, on tree-lined trails, and in the woods to integrate with nature.
The climate in spring is changeable, sometimes cold and sometimes warm. At the same time, the human body's skin is loose and its resistance to the outside world is weakened. Therefore, when spring comes, do not take off thick clothes all at once, especially those with weak constitutions.
2. Dietary care
In spring, the human body's metabolism begins to increase, so the diet should be pungent, sweet, and lukewarm.
In spring diet, you should avoid eating greasy, raw and cold foods, and eat more foods rich in vitamin B and fresh vegetables. Modern medical research believes that overeating and lack of vitamin B are one of the causes of sleepiness in spring.
Spring is the time when the liver is strong. Eating more acidic foods will make the liver fire more intense and damage the spleen and stomach. You should eat more foods that are sweet and mild in taste and rich in protein, carbohydrates, vitamins and minerals, such as lean meat, eggs, milk, honey, soy products, fresh vegetables, fruits, etc.
3. Keep your spirit high
People’s spiritual activities must adapt to climate changes. The human body is most affected by the seasons when they change, especially at the turn of winter and spring. Some people are unable to adapt to the changes in spring climate, which may easily lead to mental illness. Modern medical research shows that bad emotions can easily lead to stagnation of liver qi, dysfunction of the neuroendocrine system, and decreased immune function, which can easily lead to mental illness, liver disease, cardiovascular and cerebrovascular diseases, and infectious diseases. Therefore, in spring, you should pay attention to emotional health and maintain an optimistic and cheerful mood, so that the liver qi can flow smoothly and play a role in disease prevention and health care.
March in Yangchun is the season when all things come into being. At this time, we should avoid getting angry, let alone being depressed. We should be broad-minded, open-minded and optimistic; our body should be relaxed, comfortable, natural and full of vitality.
4. Exercise maintenance
After spring, you must adapt to the characteristics of rising yang energy and strengthen exercise. You can go running, boxing, doing exercises, etc. in the fresh air of nature. Walking, playing ball, and flying kites allow the body to learn the old and absorb the new, stretch the muscles and bones, and lay a good health foundation for a year of work and study. Practice has proved that people who regularly participate in exercise in spring have strong disease resistance, quick thinking, less fatigue, and high work efficiency.
5. Keep warm and prevent diseases
9. Common sense of life to respect life and be kind to life (shorter)
Common sense of life
1. Bandit police: 110.
2. Fire alarm: 119.
3. First aid: 120.
4. Red Cross first aid: 999.
5. Traffic police: 122.
6. Weather forecast: 121.
7. Directory information desk: 114.
8. Express service: 185.
9. Postcode query: 184.
10. Time: 117.
11. Consumer Association complaint hotline: 12315
12. After eating seafood, do not eat foods with high vitamin C content.
13. Rhododendrons cannot be planted in alkaline soil.
14. Bamboo cannot be planted in acidic soil.
15. Bananas tend to rot in the refrigerator.
16. It is best not to store chocolate in the refrigerator.
17. Eating raw eggs is not good because there are bacteria in raw eggs.
18. Do not touch the socket with wet hands.
19. Wash your hands before eating and after using the toilet.
20. Stop on red light, go on green light.
21. The dragonfly flies low to make it rain.
22. Use zebra crossing to cross the road.
23. Don’t play with fire.
24. Put out small fires promptly.
25. Fire self-rescue: (1) Memorize the passages and do not take the elevator.
(2) Cover your nose to avoid smoke and crawl on your stomach to evacuate.
(3) Expose yourself and seek rescue.
26. Don’t drink and drive.
27. Don’t hide under a big tree when it rains.
10. Thank you for some sports knowledge
The origin and development of sports
As an important part of human culture, sports gradually formed with the development of human society. and developed. According to research by historians and archaeologists, as early as primitive times, humans have taught the next generation skills and abilities such as walking, running, jumping, throwing, climbing, climbing, etc. as the most basic productive labor and daily life. This is the germ of human teaching and the germ of physical activities. The development of sports is closely related to the development of education, military, science and technology, as well as people's religious activities, leisure and entertainment activities. It must be pointed out that throughout its historical development, sports are restricted by a certain political economy and serve a certain political economy. The development of sports has roughly gone through the following three periods: the original budding period of sports; the period of consciously engaging in sports; and the period of forming and improving the sports system. After these three periods, the modern sports system has gradually formed; among them, competitive sports
Thank you, please adopt!