题目内容
Have you heard of the video—sharing app Douyin? It's quite popular these days. There are some interesting videos on it. They are very short—— from 15 to 30 seconds（秒）. I like watching them. But there are some bad things about the app, too.
First, it can take up too much of our time. You can easily become addicted（上瘾的） to it. Once, I watched videos for nearly a whole afternoon. I forgot to do my homework. It was a waste（浪费） of time.
Secondly, there are a lot of meaningless videos.For example, some students do some boring things and then post their videos on the app. You can't really learn anything useful by watching these boring videos.
I just want to tell people that we can learn meaningful things from the Internet. Maybe we shouldn't spend（花费） so much time on Douyin.
1.A video on Douyin may be________ seconds.
A.5 B.20 C.40
2.From Paragraph（段落） 2, we know that________.
A.Douyin can take too much time
B.there are some interesting videos on Douyin
C.we can learn meaningful things from the Internet
3.The underlined word "meaningless" may mean "________" in Chinese.
A.积极的 B.悲观的 C.无意义的
4.Which of the following statements is TRUE（正确的）?
A.Douyin was quite popular in 2016.
B.We should spend much time on Douyin.
C.We can easily become addicted to Douyin.
