1. The origin of the Olympic Games

1. Ancient Olympic Games

The ancient Olympic Games with written records began before776Year.At that time, ancient Greece was200Many large and small city -states.B.C.776Year,3The king of the city -state reached an agreement and decided to be in7By the middle of the month8Religious celebrations held in Olympia in the middle of the month -sports conference, every4Once and agreed to stop war during the celebration, so that athletes and audiences can participate in the Olympic Games and return safely.This is the famous "Olympic Sacred War".The ancient Olympic Games was held together293At the end, until AD394The year ended due to foreign invasion and other reasons.1170Year.

2. Modern Olympics

The Olympic Games is an international comprehensive sports meeting hosted by the International Olympic Committee and is held every four years.Divided into summer Olympic Games, summer Disabled Olympic Games, winter Olympic Games, winter Disabled Olympic Games, summer Youth Olympic Games, winter Youth Olympic Games, World summer Olympic Games, World winter Olympic Games, summer Olympic Games,winter Deaf Olympic Games.In the Olympic Games, various countries use sports to exchange cultures of various countries and to learn about sports skills. The purpose is to encourage people to continue sports.

The Olympic Games first originated in ancient Greece and was named after Olympia because of its hosting place.19At the end of the century, Baron Gu Barn, France, founded the true modern Olympic Games.from1896The Olympic Games will be held every four years at the beginning of the year (three times have been interrupted in two World War, which are1916Year,1940Years1944Years), the meeting period does not exceed16sky.because1924The winter Olympic Games has been set up in the year, so the Olympic Games is also used to the "summer Olympic Games".The Olympic Games has now become a symbol of peace and friendship.

2. The meaning of the five -ring flag of the Olympic Games

The Olympic Five Ring Road (or the emblem of the Fifth Ring Road and the Olympic Games) is five interoperable ring.The color is white.The Olympic 5th Ring Road was Yu Bay, the former Chairman of the International Olympic Committee and the founder of the Modern Olympic Games1913The annual design was selected because the color of the national flags of each member country was summarized, but it gave more connotations to the Five Ring Road.1979The Olympic Review published by the International Olympic Committee pointed out that the five rings symbolize the unity of the five continents. Athletes around the world meet in the Olympic Games with a fair, frank competition and friendly spirit.

3. The purpose of the Olympic Games

1. Basic principles

The Olympic Charter clearly stipulates that the content of the Olympic Movement is to serve sports for the harmonious development of human beings to improve human dignity; with the spirit of friendship, unity and fair competition, promote the mutual understanding of young people, and thus help establishmentA better peaceful world; make the world athletes every time4Once a grand sports festival-The Olympic Games meet together.

2,Basic meaning

The purpose of the Olympic Movement has the following basic meaningsThefirst,,The goal of the Olympic Movement is to promote the development of human society in the direction of truth, kindness, and beauty.Since entering the industrial society,,While human society began to have large -scale and all -round exchanges, there was a severe international conflict.,,Coupled with human beings mastered the weapon to destroy their own,,Make today's society facing unprecedented threats.also,Contemporary world countries are facing many problems that can be cope with common cooperation,,Such as the environment, refugees, regional conflicts, trade barriers, etc.The Olympic Movement is trying to set up a bridge between people to communicate between people from all countries,,Promote mutual understanding between people with different nations and different cultures,,Promote world peace,,Reduce the threat of war.The purpose of the Olympic Movement is consistent with the goals of human social justice.,,To a certain extent, it meets the needs of the modern international community,,It has direct practical significance for humans since entering modern society.The purpose of the Olympic Movement,,Make it an important part of the world's peaceful cause,,Therefore, it determines its important position in the contemporary international community.

Second,,The Olympic Movement is trying to use the humanistic spirit as a way to achieve its own purpose,,Establishing friendship between young people around the world.As the Fourth Chairman of the International Olympic Committee Ederson said:"The Olympic Games cannot force people to accept peace,,But it provides opportunities for young people around the world like pro -brothers."

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2022 Winter Olympics Free Ski List

1. Free -style Ski air skills team

Leader: Yan Xiaojuan

Head coach: Dimitri Kavanov

Coach: Dennis Carpperkkk, Yevitini Bonovoski, Ji Dong, Ou Xiaotao, Dai Shuangfei, Cedame

Team doctor: Yang Wanhong

Female athletes: Xu Mengtao, Kong Fanyu, Shao Qi

male athletes: Jia Zongyang, Qi Guangxi, Sun Jiaxu, Wang Xindi

2. Free -style skiing skills team

Leader: Hu Jie

Head coach: Toby Datoma

Female athlete: Li Nan

Athlete: Zhao Yang

3. Free -style Ski U -shaped venue team

Leader: Li Zhi

Management: Wang Haoli

Head coach: Elena -shredded

Coach: David Izweig, Liu Yufei

Fainer: Luke Bayer

Team doctor: Zhao Yiming

Rehabilitation division: Tu Junwei

Female athletes: Gu Ailing, Zhang Kexin, Li Fanghui, Wu Meng

male athletes: Mao Bingqiang, Sun Jingbo, Wang Haizhuo, He Binghan

3. Free -style Ski jumping platform and slope obstacle skills team

Leader: Li Yang

Management: Gu Yan, Wang Qiangjun

Head coach: Misla Tolney Ainein

Coach: Shirakawa Dabu, Jamie Gray Melton

Female athletes: Gu Ailing (both), Yang Shuorui

male athlete: He Jinbo

4. Free -type Ski obstacles chasing team

Leader: Cai Yongjun

Management: Liang Li

Team doctor: Wang Fang

Female athletes: Ran Hongyun, Pu Rui

Free -style skiing originated

Freedom skiing was born in the United States in the 19th generation. At that time, the United States was in a period of change. The psychology of people's eagerness of freedom prompted this new stimulating Ski project to appear in front of people.This project initially only set the alpine skiing and acrobatics. After decades of development, it became what it is today.

The first free Ski competition was held in the 19th Hampshire. In the following ten years, many brave people created a lot of thrilling movements, and this sport has gradually taken shape.

The International Ski Federation formally recognized free skiing projects in 1979, and formulated new rules in terms of athletes and their jumping skills to reduce the danger of this sport.The first World Cup Freedom Ski Series was held in 1980. France held the first World Free Ski Championship in 198.Freedom skiing is divided into three small items, including snow skills, air skills and ballet on snow.

1. How to stand up on the surfing board

Athletes stand on the surfing plate, or use a water movement that controls the waves such as abdominal plates, Kneeling boards, inflatable rubber pads, rowing rowing, kayaks, etc.No matter which equipment is used, athletes must have high skills and balance ability, and at the same time be good at swimming in the middle and long distances.So how do you stand up on the surfing board in the actual operation?

The surfing movement is the athlete's proling or Kneeling on the surfing plate, and draws the starting point where there is a suitable wave.When the waves are pushing the surfing board to slide, the athletes keep the surfboard standing up in front of the waves, and open the front and back of the legs (usually the balanced legs are in front, control the legs behind).Waves, fast gliding.

2. Why can't the surfing board sink

The root cause is buoyancy.For surfingboards, the value of buoyancy and gravity determines that the surfboard will not sink.

There are two causes of buoyancy:

1. The density of the surfboard itself is less than water. The buoyant caused by the part that is not soaked under the water can offset gravity.

2. The shape of the surfing board determines that it has a larger volume of water (which is related to the slightly rolling of the bottom area and edge), which causes a large buoyancy to offset gravity.If the bottom area of the surfing board is small, there will be no chance to get enough buoyancy.

The pressure is just a manifestation of the effect of the interaction between the surfing board and the seawater, and does not determine the ups and downs of the object.Water's force on surfing boards is buoyancy and not support.If it is supported, it is related to the size of the pressure.

How to train

1 As well as Accelerating the training method of free landing, which is often saidAFF

This training is a licensed coach grab the students when parachuting and show certain skills.Because students wear their own parachutes, he must receive ground training of emergency procedures and landing procedures.AFF Training usually includes several hours of ground training, and the first jump can usually be completed on the same day.

Student and twoUSPa Aff The coach leaves the plane together and falls freely together 30 to 50 Second, the specific depends on the jump height, usually 10000 to 13000 foot.The coach maintains the control of the student's seat Belt to provide air guidance and assist in stability when necessary.Student 4000 Open your parachute and land on the landing area. AFF Training requires more teaching staff to participate, so it is a relatively expensive method in various methods.

2 As well as Stable line training method

The stable wire is a cable or webbing. One end is fixed on the parachute and the other end is fixed on some parts of the aircraft. It is used to expand or partial parachute when the student leaves the plane.Teachers will not jump with students in these two methods.

Static training and the first jump can usually be completed on the same day.Students jumped out of the plane while the parachute started.Usually3500 Jump out, and then the students operate the parachute to the landing area.spend Usually compareAFF Low 100 DollarEssence

3 As well as Double Umbrella Training Method

Most parachute bases use double umbrella teaching methods to guide students to gradually switch to single -person skydiving.The coach operates a parachute and shares a parachute with students.The training time is shorter than the student's independent operation.traintime Usually less than30 minute.

Students and coaches are connected to the same parachute and pass by together30-50 The free fall of the second depends on the level of skydiving, usually in 10000-13000 foot.They use a single but larger parachute and have a dual control handle.Spend more than AFF The training method is cheap 100 US dollars.

What to pay attention

1, Listen carefully

Now the popular double skydiving, which brings convenience to users who experience parachuting. You only need to listen carefully before the training, and remember that the movement and knowledge points of the coach said.You just need to appreciate the beauty, it's okay to have a concave shapeEssence

2, Stable mood

Many people experienced the first time and are more or less nervous. It may be that their own psychological construction is too strong. It is recommended that you try not to set too much psychological limitations. Try to use the method that suits you.Essence

3, Believe in coach with you

The coaches of these skydiving bases are thousands of skydiving experience for thousands or even tens of thousands of times, so I believe your coach, if you have any uneasiness or anxiety, and fear, you can tell youEssence

4, Like one"banana" Same

When parachuting, your body should imitate the shape of the banana. When you are in half, this means that your head is tilted backwards. Looking at the horizon in front of you, the back of the arch, the arms extend to the sides comfortably, the soles of the shoe sole, the soles of the shoeShould be directed to the skyEssence

5. Parachute preparation

1 . Try to wear casual comfort as much as possible, do not wear too many buttons;

2 . Girls should not wear shoes with heels, mainly sports shoes and casual shoes;

3 . The parachuting is greatly affected by the weather. It is recommended to advance in advance2-7 To make an appointment, communicate well with customer service;

4 . For safety reasons, the electronic products and necklaces, rings and other jewelry cannot be worn in their hands.

Basic action of skydiving

The basic action of parachuting is to accept qi, take breathing correctly, relies on both ears to analyze the airflow, and then adjust the various parts of the body, make the body in a balanced state, know how to keep the umbrella, open the umbrella, the main umbrella in time, and quickly analyze the analysis.50 In the rice range, the airflow snail, control your main umbrella according to the airflow, and finally the key: understand the correct timing of the main umbrella cutting and a side umbrella.therefore Novices are afraid of out of the cabin,, Old hands are afraid of landing,, This is the best description of the skydiving exercise.

1. How to play Surfboards

1.

Looking up, holding your chest, and eyesight, your hands are padded along the sides of the surfboard, and your hands are scratched from the forefront to the end. Please pay attention to your hands and fingers together together. According to personal weight and the size of the surfing board, you need to adjust your position on the surfing board, and your toes are close to the edge of the board. During the stroke, you can dialect the water along the two sides of the plate, adjust the breathing rhythm, one left and right, and do not open your arms when paddling. This will greatly reduce the efficiency of water paddling.

Drawing is the most basic technique of surfing. Most exercises should be placed on this. The quality of your paddling will depends on whether you can catch the waves.

2. Get up

When the waves come, you are successful, and when you feel your surfing board pushed forward and feel the speed is accelerating, we start to get up.Find your ribs in your palm, and then flatten on both sides of your ribs to support your body.

3. Take the ride

When the speed is fast, you can "get rid of".His arm is pushing up and holding your body.Jump to the surfing board, keep your feet width with the shoulders and straight spine.The knee is slightly bent to absorb some bumps, so that you can stand on the surfing board more stable.

2. What are the precautions for the use of surfing boards

1. Pay attention to the place where the surfing board is carried. When placed on the ground, put it lightly and when the wind is strong, put on the sand on the sand on the surfboard to avoid being blown away by the wind.

2. When the surfing board is rushed back to the shore from the outside of the sea about 30 cm, please immediately go down to avoid the surfing board directly impacts the stone.There will be a lot of coral rocks near the shore near the shallow water area of the sea, and when there is a certain depth of water when it is rushed to the water, do not use your own abdomen to shoot the water on the water. This will increase the force area.Side towards water or back to the water.

3. When the surfing board and the waves are impact, do not use your hands to pull the safety foot rope and surfboard, so as not to be strained.

4. When surfing, please keep the length of the two Surfboards at the sea.