题目内容

Since last year, short videos have gotten tons of attention online. Many people create and share short videos on popular video apps like Douyin and Kuaishou. You can even add music and special effects (特效) 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. Many junior high school students said they enjoyed watching these short videos. The videos let teenagers see funny and exciting things they don't usually see. Many teens like to share the fun things they do with others as well. For example, a 12-year-old user named Xiaoqianyu 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.

To deal with this problem, Douyin added a new function (功能) in April. It locks the app if someone uses the app for over two hours a day. In the same month, the government asked companies to regulate(管理) these apps much more strictly.

1.How long does a short video usually last according to the passage?

A.15 seconds B.A few minutes C.over 2 hours D.15 seconds to a few minutes

2.What does It in the last paragraph refer to ?

A.The app B.The government C.The new function D.The website

3.What is the passage mainly about?

A.Short videos are now popular among teenagers. B.Short videos can cause trouble.

C.Xiaoqianyu won many fans by posting videos. D.Short videos are funny and exciting.

练习册系列答案
相关题目

Roman numerals were invented over 2,500 years ago. They came from ancient Roman. The Romans were active in trade and business. They had a system of writing, but they needed a way to record numbers so they developed their own system of numbers. That was Roman numerals.

Around 500 AD, a new number system was born in India. It was later known as Arabic numbers because it was largely used by Arabian businessmen and people. Roman popes (教皇) stopped the use of Arabic numbers when the new system came to Europe. They said that Roman numerals were invented by God and were perfect to use. However, compared with Arabic numbers, Roman numerals didn't have a symbol for zero and were too complicated ( 复杂) to use. From the 14th century on, Roman numerals began to be taken place by the more convenient Arabic numbers.

Today, people still use Roman numerals, though not so often. You may find these numbers on some clocks or the front pages of books. You may also see them after the names of kings, queens or popes ( e. g. Elizabeth II ). Sometimes they are used on gravestones (墓碑) as well.

1.How long have Roman numerals been used?

They have been used for__________________.

2.Why did the Romans want to develop their own system of numbers?

Because they needed a way to________________.

3.What did Roman popes say about Roman numerals?

They said God_______________ Roman numerals and Roman numerals were perfect to use.

4.What were the disadvantages of Roman numerals?

They had______________ and they were too complicated to use.

5.When did Roman numerals begin to be replaced by Arabic numbers?

Roman numerals began to be replaced by Arabic numbers from______________.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网