Problems in primary schools

There are hundreds of idioms at the beginning:

Perseverance, victory, obedience, foolproof, bored

A total of 100 stories are forgiven. It is better to buy a house at first sight and a neighbor for 10 million.

Being a hundred years old is a good thing, but you can't appreciate the benefits of being a hundred years old.

A hundred years of career, a hundred years of old age, a hundred years of great plans, and a hundred years of hard work.

The idiom 10,000 begins:

Colorful, United, innovative, foolproof, dead, dead, tireless.

Wanshui Qian Shan is ready to live a long life. Everything goes well except the east wind.

A model for all ages, it is not easy to be enemies for all ages.

Under the eyes of the public, the Great Wall in Wan Li, Ma Benteng is silent and beyond redemption.

Thousands of swords and arrows are full of light, and the family is rich.

If you don't do everything, you won't lose everything You won't leave your family if necessary.

Edit the introduction of this paragraph.

Kite: pinyin fēng Zheng

Kites were invented in China. It is said that Mo Zhai made wooden birds out of wood, and it took three years to develop them. This is the earliest origin of kites. Later, his student Lu Ban used bamboo to improve the materials of kites in Mo Zhai, and even evolved into today's multi-line kites.

Kites originated in the Spring and Autumn Period and have a history of more than 2,000 years. According to legend, "Mozi is a wooden kite, which was made in three years and lost in one day." In the Northern and Southern Dynasties, kites began to be a tool for transmitting information, starting from the Sui and Tang Dynasties. With the development of paper industry, people began to paste kites with paper. Flying kites became a popular outdoor activity in the Song Dynasty. Song people's meticulous "Old Wulin Events" wrote: "During the Qingming Festival, people fly kites in the suburbs and return at sunset." "Kite" means kite. There are vivid kite-flying scenes in Zhang Zeduan's The Riverside Scene at Qingming Festival in the Northern Song Dynasty and Su Hanchen's The Hundred Poems in the Song Dynasty.

Nowadays, flying kites in China plays an important role in foreign cultural exchanges, strengthening friendship with people all over the world, and developing economy and tourism.

Edit this paragraph history

/kloc-in the 3rd century, the Italian Kyle Poirot returned to Europe from China and spread all over the world.

According to ancient records: "In the Five Dynasties, Li Zheng made a paper kite in the palace to attract kites to ride the wind as a play, and then used bamboo as the flute head to make the wind enter the bamboo, making it sound like A Zheng, hence the name kite." So those who can't make a sound are called "paper kites", and those who can make a sound are called "kites".

Ancient kites were used as military reconnaissance tools, and also recorded the history of ranging, crossing risks and carrying people.

Southern and Northern Dynasties-Kites were once used as a communication tool for asking for help. In Liang Wudi, Hou Jing surrounded Taicheng. Bamboo slips tasted like paper kites, but they flew out in a hurry. As a result, he was shot and defeated, Taicheng fell, and Liang Wudi starved to death, leaving the story of this kite calling for help.

In the Northern Qi Dynasty, in Levin, people tied people's wings and made them jump off a tall tower and die. This is the so-called "Sheng".

During the Han Dynasty, Chu and Han contended with each other. Han Xin once made a big kite, fitted it with bamboo whistle and bowstring, and floated out of Chu camp at night to make it make strange noises, so as to break the morale of Chu army.

Tang Dynasty-Kites, which will be used for military purposes, have gradually turned into entertainment purposes, flying kites in the palace.

In the Song Dynasty, flying kites was considered as a function of physical exercise. When people are in Tomb-Sweeping Day, they will fly kites high and far, then cut the strings and let them take away the bad luck accumulated over the past year.

Ming Dynasty-Kites were loaded with explosives, and the fuse on kites was detonated according to the principle of "kite collision", so as to kill the enemy.

Qingganlong-that is, there are two pieces of paper to control the detailed size and description of the kite.

During the Japanese occupation era, flying kites was forbidden for military reasons, because bright kites could send information to the enemy and provide targets for aircraft bombing.

In World War II, the US military used stunt kites as moving targets for shooting training.

1980, kites became popular, except for the initial double line, which evolved into three-line and four-line technical kites or stunt kites.

Edit the source of this paragraph

Tracing the origin of kites can be traced back to the Spring and Autumn Period and the Warring States Period more than 2,000 years ago. Due to the needs of war, the ancients made a "wooden kite" that could fly in the air with birds as shapes and wood as materials. According to "Everything is done by Han Feizi, the foreign reserve said left", "Mozi is a wooden kite, which was made in three years and lost in one day". According to Hongshu's records, Lu Ban also made wooden kites, saying that "the public transport class made wooden kites to see Song Cheng". Mozi was an outstanding thinker, politician and founder of Mohism in the Spring and Autumn Period and the Warring States Period. He was also a native of Lu (involving Song people). Therefore, it is inferred that Qilu should be the birthplace of the "wooden kite", the originator of kites.

Wooden kites were born and used in the war. With the invention of silk weaving and papermaking in China, it has been constantly evolving and developing. According to legend, in 203-202 BC, in the final stage of the confrontation between Chu and Han, Han soldiers surrounded Chu camp first, and Han will release a silk kite from the seclusion of Nanshan in the fog, so that the boy who plays Xiao can lie on it and play Chu songs. At the same time, he ordered the Han army to sing Chu songs in all directions, which made the officers and men of Chuying homesick and broke up without a fight. Wang Chu Xiang Yu also committed suicide.

Up to now, it has left a legend that Sean "blew away eight thousand soldiers of the King of Chu". According to Cheng Zhai Miscellaneous Notes, when preparing for the rebellion, Han Xin "set out from it, but released it as the distance from Weiyang Palace, hoping to go deep into the palace of the underground people". "Duzhi" contains: In the third year of Taiqing in Liang Wudi (AD 549), Taicheng in Weitai, Hou Jing, bamboo slips were made of paper kites. They rushed into the air and cleared the way with reinforcements.

Some folklorists believe that the ancients invented kites mainly to miss the sophisticated relatives and friends, so when the death gate of Tomb-Sweeping Day was briefly opened, they pinned their sympathy on kites and gave them to the dead relatives and friends.

The earliest kites were not toys, but were used for military and communication. In the late Tang Dynasty, it was called "kite" because someone added strings to the kite, which sounded like a guzheng when the wind blew.

In BC 1000, people in China first flew kites. It is said that people in China could fly kites long before they believed in history. According to legend, in the 4th century BC, Lu Ban, a famous craftsman in China, made a kite and took off for three days without falling. There is also a story in which a general surrounded the palace and used a kite to measure the distance between the palace wall and his own army. Kites can be used to send bricks to and from home, or to tie hooks to the tail of kites for fishing. In 1600, oriental kites (diamonds) were introduced to Europe by the Dutch. /kloc-In the 9th century, the British inventor Clay was inspired by kites and invented the glider. Texas actor Cody "Captain" once used a kite to drag a folding boat across the English Channel. 190 1 year, I made persistent efforts to fly kites with double boxes, which aroused great interest from the British War Department. Soon, the plane replaced the military kite, and Cody, the "captain", died in an air crash while flying his new biplane on 19 13. 1970, the American space program designed various "flying wings" to make kites become toys for adults again. For example, the Rogge Lele folding flying wing was originally designed for the safe landing in the Mercury spacecraft cabin, and was later replaced by a parachute; But this folding wing was originally the wing of today's hang glider. Flying a kite provides the principle and inspiration for the plane to fly into the sky.

Kites were called "kites" in ancient times and "kites" in the north. Most people think that kites originated in China and then spread all over the world. This is a traditional folk handicraft. In fact, the earliest kites in China were made of wood. During the Spring and Autumn Period and the Warring States Period, Mo Zhai (478-392 BC), a philosopher of the Eastern Zhou Dynasty, used a wooden kite to fly to the sky in three years. Mozi was in Lushan (now Weifang, Shandong). "Cypress is a kite. It took three years to make it, but it was lost in one day." This means that Mozi finally made a wooden bird out of a board after three years of research and trial production, but it broke down after only one day's flight. This "wooden kite" made by Mozi is the earliest kite in China and the earliest kite in the world. (about 300 BC), 2400 years ago.

It was not until Cai Lun invented papermaking in the Eastern Han Dynasty that kites were made of paper, which was called "paper kites". Therefore, it can be inferred that China kites have a history of more than 2,000 years.

Mozi passed on his kite-making career to his students' open class (also called Luban). Lu Wen said that Lu Ban made kites out of bamboo according to Mo Zhai's ideal and design. Lu Ban split the bamboo, cut it into smooth slices, roasted it with fire, made it look like a magpie, and flew in the air for three days. The book "Hongshu" says: "The public transport class made a wooden kite to see Song Cheng".

At first, kites were usually used as military tools, as a means of triangulation signals, sky wind direction measurement and communication. Just like in the Spring and Autumn Period, Lu Ban made a wooden kite to see Song Cheng.

In BC 190, Chu and Han contended, and Han and Han Xin attacked Weiyang Palace to measure the distance under the tunnel with kites. In the Battle of Gaixia, Xiang Yu's army was besieged by Liu Bang's army. Han Xin sent people to make kites out of cowhide, put bamboo flutes on them, and let them work in the wind (Sean played the flute with a kite). The Han army sang Chu songs and dispersed the morale of the Chu army. This is the story of the idiom "Embattled".

There are also records about kites in the official history, which are earlier than the Five Dynasties. One is the Hou Jing Rebellion in the Southern Dynasties, when Liang Wudi was besieged by Hou Jing and the city walls were besieged. He used to fly kites for help. According to the Biography of Hou Jing in Southern History 80, in the third year of Liang Wudi (AD 549), Hou Jing made an insurrection, and the rebels besieged Liang Wudi in Jianye, Du Liang (now Nanjing), and were cut off from both inside and outside. Someone suggested making a paper crow and tying the imperial edict to it. At that time, the prince's suicide note was thrown by the northwest wind outside Taijitang for help, but it was discovered by the rebels. This is the story of Jane Wen's unfortunate failure to fly a kite for help.

According to legend, in the 5th century BC, the Greek Alkell Das invented the kite, but it was later lost. It was not until13rd century that the Italian Kyle Poirot returned to Europe from China that kites began to spread in the west.

According to other textual research, it spread to Korea in the tenth century, then to Japan, and to Europe in the thirteenth and fourteenth centuries.

There is also a story about flying kites in America. At that time, people thought that lightning and flash were the roar of religious gods and caused fear. Fran Green used kites to prove that lightning and flash are air discharges and invented the lightning rod.