题目内容：

    Becoming famous is the dream of many, and Tian is getting closer to that dream.

Tian, 30, is a white-collar worker in Beijing. On short video application Douyin, Tian has more than 2,000 fans. So far, she has received more than 50,000 likes on the Dubsmash-like app. On her page on Douyin, Tian shares everything, from her son’s daily activities, to her pet dogs, to little skits (段子) made up by her and her husband. “Making funny videos, and combining them with music is really interesting,” Tian said. “Of course, I make the videos for fun because it is quite relaxing.”

China’s short video market has seen great growth, according to a report. The report said that China’s short video market was valued at 5.73 billion yuan ($900 million) in 2017, an increase of 184 percent. The industry value is expected to go up to the 30 billion mark in 2020. Companies like Tencent, Sohu and Iqiyi have all started providing short video content.

“Short videos are popular because they are an addition to traditional audio and video content on the internet,” said Sun Jiashan with the Chinese National Academy of Arts.

Fans say that the short videos help them “chill out” from a stressed-out lifestyle. “My favorite videos are all about pets,” said Zhou Na, a nurse in Hefei, capital of East China’s Anhui province. “After a whole day’s work, watching the 15-second videos makes me laugh, which reduces my pressure.”

1.Why does Tian make short videos in Douyin?

A.To get fun. B.To become a well-known person.

C.To attract fans. D.To record her family’s routine.

2.What’s Sun Jiashan’s opinion about short videos?

A.They have huge value.

B.They greatly reduce people’s pressure.

C.They make people’s star dreams come true.

D.They enrich internet audio and video content.

3.What does the underlined words “chill out” probably mean?

A.Catch a cold. B.Feel cold.

C.Calm down. D.Become concerned.

4.What does the passage mainly tell us?

A.Every Chinese is using Douyin.

B.China’s short video market is open.

C.Douyin brings the Chinese great happiness.

D.China’s short video market has developed rapidly.