Now, it seems that artificial intelligence (人工智能) is becoming more and more popular in life, and it has greatly influenced the ways we live, work and play. Can you imagine that you can play table tennis with a robot one day?

    Recently, a scientist has invented a special robot that can be a table, tennis coach. That means people can practice table tennis not only with humans but also with a robot.

    Named Forpheus, the smart table tennis robot is quite special. It can study the movements of human players and the speeds of the ball. In this way, it can exactly judge(判断) the players skill levels(KF). Then it uses the information to change the ways to play. If the players are just beginners, Forpheus will play in a slow and easy way, but if the players are better ones, the robot will play in a faster and more difficult way. What's more, while playing, it encourages players to try their best with words like "Good job!" ," Come on!" and so on. At the same time, it gives some good chance to improve their skills. So it is both a good partner and a clever coach. Science and technology is developing quickly these days and it's hard to imagine what will happen in the future. "In the next 20 years, it will be possible that one robot teaches another to play table tennis or even invents another one!" Takuoya, the inventor of the robot, said.

    Lydia is 14 years old. She lives in a small house with her parents and two brothers, Daniel and Henry. Daniel is 12 years old, and Henry is 9 years old. Daniel and Henry often complain about the small house. They want to live in a big house. Their dream house is very big. In the house, they each have a bedroom, a desk and a computer. In front of the house, there is a big beautiful garden. In the garden, there are some fruit trees. They like eating fruit very much. Behind the garden, there is a swimming pool. They like swimming, too. They can ask their friends to come to their house on weekends. They can play computer games, swim and do their homework together. They say they will have a lot of fun that time.

 Last month, Shenzhen launched its first smart cat adoption(领养) center in Bao' an District in July. The center is a 6- square- meter room with a glass door. It makes it easier for people to adopt street cats. Through this center, two cats have already found new homes.

 People who rescue street cats can apply to bring them to the center. If the staff think the cats are suitable to stay, there's a daily fee of 20 yu an to take care of the cats' health 24 hours a day. The fee can be paid by the rescuer or raised by the public.

 People who might want to adopt a cat can enter the center by scanning(扫描)a QR code and paying 10 yuan. Visitors also need to put on shoe covers before going in. Inside, visitors can find basic information about the cats and how to adopt the cats. There's also a smart feeding machine where visitors can buy food for the cats. And it doesn't cost anything to adopt a cat.

 Many people like the center for protecting street cats, especially in winter. However, some citizens worry that the cats might be harmed by cat haters. The staff explained that they will monitor the center all the time, and they can lock the doors through remote control if needed. Serious problems will be reported to the police at once. The center allows up to three visitors at a time, and children must be with a parent.

 More smart cat adoption centers are planned for Nanshan and Bao' an districts. With the adoption centers, over 10 pet- themed parks, and 50 pet- friendly malls, Shenzhen is on its way to becoming a" pet- friendly city".