【题目】 We often find that weekends and holidays feel so short while classes and work feel so long. Actually, though, we know that this is not true. But we still wonder where that strange feeling comes from. In fact, this is one of the ways that we’re tricked by time, according to the website All That Is Interesting. The website lists several wrong impressions we often have about time. Let's have a look. First of all, emotions affect our time-keeping abilities: Negative emotions, especially anxiety and boredom, make time seem longer because they make us concentrate more on the passage of time. However, when we are enjoying ourselves, we pay more attention to what we are doing and are likely to lose track of (失去对...的意识) time.

Here is another example. In 2007, a group of scientists carried out a test. In the test, people fell 50 meters into a safety net and were then asked about their experience. Although the experience took shorter than 3 seconds, the people thought it was much longer than it actually was.

This is because of the way our bodies reply to danger, according to the scientists. Our bodies produce a chemical called adrenaline (肾上腺素) when we are faced with danger. It allows us to concentrate better so that we can stay alive. As a result, we are able to remember far more details (细节) over a short period of time, which makes it seem like time is going more slowly.

Another situation when we make mistakes about time is when we take afternoon naps(午觉). Have you ever had trouble telling what time it is after a long nap? That's because the best amount of time for a nap is 20 minutes. After 20 minutes, you enter a new stage of sleep called slow-wave sleep. If you wake up mid-way in this stage, it will take a while before you can correctly perceive(感知)time again. Yes, time can be mysterious and there is no way to control it. So, perhaps the best thing to do is to make good use of every minute.

1According to the passage, what possibly makes people feel so long?

A.weekends and holidaysB.weekends and work.C.classes and workD.holidays and work

2Which will not affect our time-keeping abilities according to the website listing?

A.negative emotionsB.positive emotionsC.adrenalineD.scientists

3According to the passage, in which situation don’t we make mistakes about time?

A.We wake up after a long nap.

B.We fall down from a high place.

C.We have many problems left in the test paper, but the time is up.

D.We go to school on the school bus as usual on weekdays.

4According to the passage, what will NOT happen when we are faced with danger?

A.Our bodies will produce a chemical called adrenaline.

B.We are able to feel that time seems to go more slowly.

C.Adrenaline will make us concentrate better to stay alive.

D.We will forget far more details over a short period of time.

5Which of the following statements is NOT true according to the passage?

A.Negative emotions make time seem longer.

B.We feel like time is going more slowly while having fun.

C.Time can be mysterious and there is no way to control it.

D.If we wake up mid-way after a long nap, maybe we can't correctly perceive time again soon.

【题目】 Since 2017, short videos have gotten millions of views (关注) 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. More than 50 percent of Grade 7 and 8 students said they enjoy watching these short videos. About 47 percent of them have posted their own videos, according to a recent report by the China National Youth Palace Association.

The videos let teenagers see funny and exciting things they wouldn’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 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 are vulgar and not suitable for teenagers.

To deal with this problem, Douyin added a new function (功能). It locks the app if someone uses the app for over two hours a day. Also the government asked companies to make more strict rules for these apps and cancel the unsuitable videos.

1Kuaishou is a kind of popular__________app.

A.exercisingB.videoC.cookingD.music

2The Chinese meaning of vulgar in Paragraph 4 means “__________” in Chinese.

A.冗长的B.健康的C.积极的D.低俗的

3The passage tells us that__________

A.teenagers can't use the app over 2 hours a day on Kuaishou.

B.a video about learning jazz dance can't be posted on Douyin.

C.more than 50% of the teenagers have won many fans on the apps.

D.about 47% of the students in Grade 7 and 8 had shared videos on the apps.

4Maybe the passage comes from__________.

A.a history bookB.a sports magazineC.a newspaperD.a science book

5If we divide the passage into three parts, which of the following is the best?

(=Para.1 =Para.2 =Para.3 =Para.4 =Para.5)

A.①②;③④;B.;②③;④⑤C.①②;;④⑤D.;②③④;

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