阅读理解。

Hover Camera(无人相机)

    Wang Mengqiu, the inventor of Hover Camera, was born in Hangzhou in 1982. He once studied at Stanford University in the United States. He became famous overnight(一夜成名) because of the invention.

    Forget selfie sticks(自拍杆)! Compared to other cameras, Hover Camera has many advantages.

    *It can fly and stay in mid-air, track your face and even follow you to make sure it gets the perfect picture.

    *It can be controlled by using a smartphone(智能手机).

    *It records movements with a 13MP camera and takes 4K video.

    *It is the best choice for weddings, sports games and holidays.

    Mr. Wang also said: “The main design consideration is easy and safe to take for the users. It's very light and small. It can be folded(折叠) in two, so it can be easily put into a bag. When the power is low, it can land on the ground safely on its own.”

    It's reported that the company has raised $ 25 million to produce it. As it is still being tested(测试), Hover Camera can be bought later this year.

The price has not yet been decided. But a spokesman says the company hopes to sell it for less than $ 600.

    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 S interesting. The website lists several wrong impressions (印象) we often have about time. Let's have a look.

    First of all, emotions affect (影响) our time-keeping abilities. Negative emotions (消极情绪). especially anxiety and boredom, make time seem longer because they make us concentrate (集中) 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 (神秘的) and there is no way to control it. So, perhaps the best thing to do is to make good use of every minute.

Sammie Vance, 14, knows there's nothing worse than feeling left out. For years, she's been helping kids who feel lonely make friends. 

What she was doing was running the Buddy Bench(伙伴长 椅 )program. She started it when she was in the third grade, in Fort Wayne, Indiana. The idea was that anyone at school who was feeling lonely could sit on the"buddy bench". That let other kids know someone needed a friend. "It's really helpful to have other people be able to notice you, "Sammie says. 

The idea quickly caught on (流行起来). The bench brought kids together. Since then, Sammie has helped communities all over the country set up buddy benches. "It means a lot to me, "she says, and this is making a difference in people's lives. "

Sammie got the idea for the Buddy Bench program at summer camp in 2017. She thought it would be cool to have a buddy bench in her school, so when she got home, she presented the idea to her principal(校长), her teachers, and her parents. 

Getting approval(批准)for the project was just the first step. "There have been a lot of small challenges, like money, "Sammie says. 

To reduce costs and be eco-friendly(环保的), she asked her community to collect bottle caps. Soon Sammie was getting caps from people in 50 states. She even got them from people in Germany, the Netherlands, and other countries. In the end, she collected more than 1, 200 pounds of bottle caps. A company was able to make these into three benches. 

Sammie says the effort has helped her overcome personal challenges. "I used to be really, really shy, "she says. I'm much more outgoing now. What Sammie's work shows is that we don't have to be an adult to make a difference. Even small acts of kindness can be powerful. She says, "Just be kind, in general. "

Studies show that people now have more free time than ever before. Then why doesn't it feel that way? These days, many of us spend lots of free time playing with our phones. Pictures and information keep getting into our minds, so it's no wonder(难怪) we don't feel fully relaxed. To help you feel relaxed and energetic, it is important to use your free time wisely. Here is how to do it.

Set your goals. Think about what you want to achieve in your free time. Do you want to get fit, learn something new or just relax? Don't worry about what you should do. Just think about what will bring you satisfaction(满足感).

Get creative. When we watch TV or read, we are only taking things in. Try to be a producer for a change. Build a model or write a blog. You will use different parts of your brains and feel more energetic as a result.

Meet like-minded people. Everyone has different interests, so don't expect your friends to be into the same things as you. You can join a club and get to know people with the same interests as you.

Guard your time. Don't let anything else take up(占据) your free time. For example, ____. Otherwise (否则), the line between your free time and everyday life will be unclear, and you won't feel relaxed.

Once you're fully relaxed, you can think about what you'd like to improve in your life. Want to be stronger? Learn a skill? There are many groups, clubs and classes that you can join to help you start a new life. So just get out there and enjoy yourself!

①Today, it is a big problem for young people to get fine jobs after they leave universities. There are different kinds of jobs in the world. But how should young people choose the right one? That often worries them. 

②"Finding a job" is not the same as"choosing a job". Many young people can't get right jobs. Here are a few steps to help you think about jobs which you might enjoy doing after you leave school or university. 

③First, it is important to know what kind of person you are, what special qualities you have and what you are interested in? There is a difference between an interest and a skill. If you like art and enjoy looking at pictures, that is an interest. But if you can draw a horse and it looks like a horse not a big dog, that is a skill. 

④Then ask yourself a question, "Of the following three skills— skill with people, skill with information and skill with things, which is my best skill?"

⑤After finding out your best skill, the next step is to study carefully. To find out as many different kinds of jobs as possible, go to the library and read books, magazines and newspapers for information. Ask your friends what they think of the work they do. 

⑥The last step is to trust your own ideas and your own thinking! It is your own life. Just find the job you really enjoy doing.