The kite is believed to have originated （起源） in China.Since its（1）

invention

invention

（invent），there have been many changes to the kite by various cultures around the world.The kite you probably flew as a kid looks （2）

a

a

bit different from the ancient Chinese kites and even the kites of modern China.
    Kites （3）

were created

were created

（create） in the early Warring States Period by Mozi and Lu Ban.Kites were often made （4）

to look

to look

（look） like the shapes of birds. （5）

Mainly

Mainly

（main），they were used for military purposes.The first Chinese kites were used for measuring distances， （6）

which

which

was useful information for moving large armies across （7）

difficult

difficult

（difficulty） areas.They were also used to calculate （計(jì)算） and record wind readings and provided a unique form of communication similar（8）

to

to

ship flags at sea.
    Chinese kites usually represent symbolic creatures as well as legendary figures.Some have whistles designed to make unique sounds while（9）

flying

flying

（fly）.We can divide them into two types：large and small kites.In size they can range between 4 centimeters（10）

and

and

75 meters across.Today，you will see people flying small kites with children in many Chinese parks.You can also see adults flying the larger kites and using more advanced methods with larger ropes to support the great size.