Since my mother moved to live with us in the city, she has been much heavier than before. As time went by, her health got1. So I had to take her to see a2. My mother was told to lose weight by doing exercise every day. She had no choice but to follow3the doctor said. I told her that I would exercise with her every morning.

    On the first morning, she got up very early4ran with me in our neighborhood. I tried to run slowly so that she could follow me. After5for some minutes, I told her the proper ways of exercise and the importance of eating healthy food. She listened to me carefully. It made me6that she told me everything very patiently when I was a kid. On the second morning, I praised her for keeping running with me.

    But after two weeks, she wanted to7running because she thought the two-week exercise didn't work at all. To encourage her, I taught her how to use the facilities (设施) for exercise in our8. She began to exercise again.

    With my help, it9her one month to develop a good habit of daily exercise. "Thank you, my dear daughter. Exercise brings health and happiness to me. I will10worry about my health." Her words touched my heart deeply. I felt happy to make a big difference to my mother's life.

    Since my mother moved to live with us in the city, she has been much heavier than before. As time went by, her health got1. So I had to take her to see a2. My mother was told to lose weight by doing exercise every day. She had no choice but to follow3the doctor said. I told her that I would exercise with her every morning.

    On the first morning, she got up very early4ran with me in our neighborhood. I tried to run slowly so that she could follow me. After5for some minutes, I told her the proper ways of exercise and the importance of eating healthy food. She listened to me carefully. It made me6that she told me everything very patiently when I was a kid. On the second morning, I praised her for keeping running with me.

    But after two weeks, she wanted to7running because she thought the two-week exercise didn't work at all. To encourage her, I taught her how to use the facilities (设施) for exercise in our8. She began to exercise again.

    With my help, it9her one month to develop a good habit of daily exercise. "Thank you, my dear daughter. Exercise brings health and happiness to me. I will10worry about my health." Her words touched my heart deeply. I felt happy to make a big difference to my mother's life.

    Now, it seems that artficial intelligence （人工智能）is becoming more and more popular in our 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 player' skill levels (水平). Then it uses the information to change the ways to play. If the player 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 beat with words like "Good job!", "Come on!" and so on. At the same time, it gives some good advice 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.