B
阅读下面材料,从题中所给的 A、B、C、D四个选项中选出一个最佳选项。
During ancient times（古时候）,children
didn't have smart phones,pads or computers to have fun. Instead, they came up with interesting games to play in their childhood. Let's take a look.
Flying kites
Kites have quite a long history. The earliest kites were made of wood. Now in China, the four most famous kites are the Beijing kite, Tianjin kite, Nantong kite and Weifang kite.Each of them has its own characteristic（特点）.
Watching shadow plays
The closest thing to watching a film or television during ancient times was watching a shadow play. People control puppets（木偶）behind the screen while singing with music to tell a story. Shadow play was listed as a national intangible cultural heritage（非物质文化遗产）in 2006.
Setting off firecrackers
Firecrackers have a history of more than 2,000 years.It is said that people burnt bamboo joints to make them blast（爆炸）to drive away the beast（野兽）named Nian in ancient China. Firecrackers are still set off during the Spring Festival to symbolize（象征）hope and good luck.


21. What were the earliest kites made of?
A.Wood.
B.Paper.
C.Cloth.
D.Bamboo.
22. When was shadow play listed as a national intangible cultural heritage?
A.In 2000.
B.In 2006.
C.In 2016.
D.In 2026.
23. Why did people burn bamboo joints in ancient China?
A.To listen to the sound.
B.To make people get up early.
C.To drive away the beast named Nian.
D.To drive away tigers.
24. Why are firecrackers still set off during the Spring Festival?
A.To symbolize hope and good luck.
B.To tell a story.
C.To make a sound.
D.To watch a play and a game.

21~24.ADCA