Can you imagine a world without the Internet？It's     1    (surprise) to think about it. Now, China has more than 162 million Internet     2    (use), according to the China Internet Network Information Centre. This is the second     3    ( high) number of users in the world after the United States. Today, 66%of Chinese “netizens（网民)” are teenagers. “They spend about thirteen hours every week online, ”said Qian Hulin, an Internet expert. Doctor Song in Beijing Xuanwu Hospital said about 14% of Chinese netizens     4     are teens often lasted over ten hours to play online games.

The main reasons why teenagers surf the Web are     5    (search) for information, to communicate with others and to have fun. On the Internet,teenagers can find out almost anything. And surfing the Web can help students with their homework     6     widen their knowledge.

Li Dong, a teacher at No. 41 Middle School in Shijiazhuang, likes her students to use the Internet. “When we talk in class, students who surf     7     Net usually know more background information than the others,” she said.

    8    ( addition), people can use the Internet to write letters or stories and send emails. Many teens keep in touch with     9    (they) friends online. It is     10    (cheap) than phoning somebody far away and much quicker.

On Saturday night, a five-person team of the Chinese e-sports club, with the full name EDward Gaming,     1     (win) the 2021 League of Legends (LoL) World Championship in Iceland. The team has made very good use of the opportunity     2     (share) Chinese culture with the world. At the beginning of the championship, the members of EDG displayed Tai Chi martial arts, launching a “Chinese hurricane” there.

With the popularity of digital technology, new forms of cultural exchanges have been emerging, of which e-sports are of the     3     (hot). Unlike texts and videos, e-sports are understandable around the world, with the barriers of language     4     (break) down. Also e-sports appeal most to those in     5     (they) early 20s, as shown by the celebrations of college students on Saturday night,     6     in turn makes them a good bridge of communication between Chinese youngsters and their peers around the world. More     7    (important), the e-sports industry is sustainable in spreading Chinese culture, as the large audiences mean huge commercial potential.

As early as 2019, Hainan province announced its plan of building     8     international e-sports center. On Nov 5, the 2022 Asian Games Committee announced it had listed eight e-sports     9     events in the Games. As more Chinese star gaming clubs and teams appear, the industry     10     (expect) to further grow and continue spreading Chinese culture to the world.

Human memory is unreliable. Even people with the sharpest facial recognition skills can only remember so much.

It’s tough to quantify how good a person is     1     remembering. No one really knows how many different faces someone can recall, for example, but various estimates tend to hover in the thousands.

Machines aren’t limited this way. Give the right computer a massive database of faces, and it can process what it sees — then recognize a face it     2     (tell) to find — with remarkable speed and precision. This skill is     3     supports the enormous promise of facial-recognition software in the 21st century.

The thing is, machines still have limitations when it comes to facial recognition: And scientists are only just beginning to understand what those constraints are.     4     (figure) out how computers are struggling, researchers at the University of Washington created a massive database of faces and     5     (test) a variety of facial-recognition algorithms (算法) as they scales up in complexity. The idea was to test the machines on a database that included up to 1 million different images of nearly 7, 000 different people — and not just a large database     6     (feature) a relatively small number of different faces.

As the databases grew, machine     7     (accurate) dipped across the board. Algorithms     8     were right 95% of the time when they were dealing with a 13,000-image database; for example, were accurate about 70% of the time when face with 1 million images.

Machines also had difficulty adjusting for people who look a lot alike — either doppoelgangers (长相极相似的人) , whom the machine would have trouble in identifying as two separate people,     9     the same person who appeared in different photos at different ages or in different lighting, whom the machine would     10     (correct) view as separate people.

In the coming era of budget cuts to education, distance learning could become the norm.

The temptation for those in charge of education budgets to trade teachers     1     technology could be so strong that they ignore the disadvantages of distance learning. School facilities are expensive     2    (build). Online classes do not require buildings and each class can host hundreds of people at the same time,     3    (result) in greater savings. But moving away from a traditional classroom     4     a living, breathing human being teaches and interacts with students daily is a disaster.     5    (physical) attending school has hidden benefits: getting up     6    (early), interacting more with peers, and building better relationships with teachers. Moreover, schools should be more than simple institutions of traditional learning. They are places where students     7    (offer) counseling(咨询) and other support.

Those policy-makers are often fascinated by the latest technology in education and its potential to transform education overnight.     8    , online education does not allow a teacher to keep a struggling student after class and offer help. Educational videos are unable to make eye contact or assess a student’s level of     9    (engage). Given these expectations, schools should not become permanently “remote”. Technology, however     10    (advance), should simply be a tool of a good teacher.

    1     I hated dinner parties, I decided to give another try because I’m in London. I did so     2     dinner parties in London were very different from those back in New York. Also, my friend Carla’s invitation encouraged me. There, “I’m having a dinner party” means: “I’m booking a table for 12 at a restaurant; you can’t afford and we’ll be sharing the money, no matter     3     you eat.” Worse, in New York someone always leaves     4     the bill arrives. They’ll throw down cash—half of     5     they owe, and then people like me,     6     don’t drink, end up paying even more. But     7     I try to use the same trick, the hostess will be angry. And it’s not like I can say I have somewhere to go—everyone knows I have nowhere to go.

But in London, dinner parties are in people’s homes. Not only that, the guests are an interesting mix.     8     I went to one last time, the guests were from France and Japan.     9     I arrived, I felt it was like a gathering at the United Nations. In New York, the mix is less striking. It’s like a gathering at a well-known department store.

For New Yorkers, people like talking about other parts of the world     10     they are free. They are interested in new things.