Peoplehavebeenmakingandflyingkitesforabout2，000years．N...

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  People have been making and flying kites for about 2，000 years．No  one knows for sure who invented the kite．Some historians believe that the ancient Chinese may have started kite flying 2,000 years ago．36  .There‘s even a special Kites Day on which children and adults fly kites．

    Simple kites are made by crossing two sticks and covering them with paper or cloth．Then you attach a string at the end．More expensive kites have frames made of fiber glass or plastic．The name comes from a graceful bird called Kite．

   Kites are made．in many different sizes，co1ors and shapes．  37 It  flies because air flows over and under the kite's wing．The pressure hewing helps the kite lift into the air.

    38  Early scientists sent kites into air to measure temperature at different heights．In 1752，Benjamin Franklin used a kite to prove that lightning was a form of electricity．He attached a metal key to the string of a kite．When lightning hit the kite，electricity passed down the string and Franklin got an electric shock．  3 9

   Kites were also used to develop airplanes．The Wright Brothers experimented with kites before they flew the first airplane．In the past kites were used to take pictures in wars．In World War I the Germans developed a large kite that could transport people to a submarine(潜艇)．40

   Today most people fly kites as a hobby．Kite festivals are organized in many cities in all parts of the world．

  A.It is still a popular hobby in China．

  B.Kites have also been used in experiments．

  C. Many families fly fish kites on Children’s  Day．

  D．A flat kite is the oldest and simplest type of kite．

  E. Kites of various shapes are decorated in different colors．

  F. It was a very dangerous experiment that you shouldn’t copy．

  G.Kites were also used to carry radio signals over long distances．

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