1 . 随着电脑的普及和因特网的发展，上网已经成为生活的一部分。某中学高一（10）班同学就中学生上网的利与弊进行了讨论。请你用英文给某报社写一封信，描述此次讨论的结果。

利	弊
1. 及时了解国内外时事，开阔视野 2. 看电视、听歌、聊天、放松身心 3. 收发邮件又快又省钱	1. 导致上课注意力不集中，影响学习效率 2. 浪费时间和钱 3. 不利于身体健康

注意：
1. 不要逐字逐句翻译；
2. 词数100左右；
3. 开头和结尾已给出，不计入总词数。
Dear editor,

With the development of the computer and Internet, surfing the Internet has become a part of our life. Students are no exception. Our class has had a discussion.

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Yours,

Jamie

2 . These days, short videos have got millions of views online. Many people create short videos on popular video apps like Douyin and Kuaishou. You can even add music and special effects to your videos. The videos are 15 seconds to a few minutes long. They show people doing activities like cooking, exercising and singing.

Teenagers especially enjoy these videos. More than 50 percent of students in Grade 10 and Grade 11 said they enjoyed watching these short videos. About 47 percent have posted their own videos, according to a recent report.

The videos let teenagers see funny and exciting things they wouldn’t usually see. Many teenagers like to share the funny things they do with others as well. For example, a 12-year-old user named Xiao Qianyu has posted videos showing her learning jazz dance. This has won her many fans.

However, the videos can also cause trouble. Some students spend too much time watching them and not enough time studying. Some videos have vulgar content that is not good for teenagers.

To deal with this problem, Douyin added a new function (功能) in April, 2018. It locks the app if someone uses the app for over two hours a day. In the same month, the government asked companies to control these apps well and get rid of bad videos.

1. What can people add to their short videos with these apps?

A．Music and special effects.	B．Douyin and Kuaishou.
C．Jazz dance.	D．Locking the app.

2. What will happen if kids spend too much time watching short videos?

A．The app will be locked for over two hours.

B．They will not spend enough time studying.

C．Some vulgar videos will be shown to them.

D．They will win a lot of fans for themselves.

3. What does the underlined word “vulgar” mean?

A．kind

B．funny

C．wonderful

D．harmful

4. It can be inferred from the passage that ________.

A．the apps have been monitored (监管) much more strictly.

B．more and more teenagers enjoy sharing their short videos.

C．teenagers can add all kinds of special effects to their videos.

D．There will be no vulgar content in these short videos at all.