完形填空：

　　Tea, the most popular drink in the world, was invented by accident．　　1　　 an ancient Chinese legend, the emperor Shen Nong 　　2　　 tea when he was boiling drinking water over an open fire．Some leaves from a nearby bush fell into the water and 　　3　　 there for some time．The emperor noticed that the leaves in the water produced a 　　4　　 smell．Later he decided to 　　5　　 the hot mixture．It was quite delicious．And 　　6　　, one of the world’s favorite drinks was invented．

　　China is home of tea, which has more than 4,000 years of 　　7　　．People in China drink tea daily．　　8　　 the three major drinks－tea, coffee and cocoa, tea is drunk by 　　9　　 people in the world．Tea from China, 　　10　　 silk and porcelain(瓷器), began to be known by the world over a thousand years ago and has been an important Chinese export(出口产品)　　11　　．

　　Tea leaves are grown 　　12　　 in the south area of the Changjiang River, in the provinces of Zhejiang, Jiangxi and Fujian．Longjing, Wulong, Pu’er and Tieguanyin are all 　　13　　 kinds of tea．

　　Over the past centuries, Chinese people have developed their special tea culture, which 　　14　　 tea planting, tea-leaf picking, tea making and so on．Tea is also a popular 　　15　　 which is often mentioned in dances, songs, poems and novels．