Penny's family moveinto a new house in a new town, so she has to go to a new school. Everything isnew to the 11-year-old girl.

Luckily, she soonfinds one friend in her neighbourhood, and her name is Lark. Penny likes scienceand enjoys making robots. She always says that the robots are her best friends.Lark is good at building birdhouses. She is interested in Penny's robots andjoins her to build a robot town.

Everything works well.However. Penny is havingtrouble making friends at her new school. One day.Penny gets an invitation (邀请)from theScience Club at school. But the problem is that the club only wants Penny, notLark. Penny has to choose between the best friend she's always wanted and theclub she's always dreamed of. In the end. Penny chooses Lark and she thinks onetrue friend is enough.

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In our school, some of students have obesity and vision problems (肥胖和近视问题). How are we going to solve the problems? 

In a hanfu show in Changsha, Hunan, 20 models in beautiful hanfu won many people's hearts. They looked like they walked out of old Chinese paintings. The 20 sets of hanfu are a recreation(再现)of clothing in Yongle Palace murals (壁画). Zhang Zening made these clothes. 

Zhang Zening is from Nanjing. When she got to know about hanfu, she fell in love with it. She has great interest in hanfu. But Zhang found that some styles she liked were not available on the market. So she started to learn to design(设计) hanfu herself. 

In 2015, Zhang started to teach herself how to recreate hanfu. Zhang visited cities, studied museum murals and looked for information online to learn more about hanfu. Eight years later, Zhang recreated over 50 sets of hanfu from different times. She got ideas from murals in places like Yongle Palace in Shanxi, Fahai Temple in Beijing, Dunhuang in Gansu, and from paintings by Tang Bohu. 

The work is not     ▲     because Zhang always tries to make the clothes the same as those in murals and paintings. It takes about a month to recreate each hanfu set. In Zhang's eyes, recreating hanfu is not just about making a piece of clothing; it's also about learning about traditional Chinese culture. It helps her understand people from earlier times. Zhang finds it exciting to learn about the traditional culture. 

My hometown Nanjing is in the eastern part of China.As the capital of Jiangsu，it is a modern and busy city.And it is one of the cities with the longest history in China.With the development of the economy（经济），it has changed a lot in the past few years.

For one thing, people took tramcars (有轨电车) to go out in the past. But now many people choose to take a subway because of its convenience (便捷). What's more, taking a taxi becomes very popular. It has an app on the phone, and some people use it to call a taxi. It may be much cheaper.

Besides，the building is different from the past.In the past，the tallest building in Nanjing was Jinling Hotel.It had 37 floors.At that time，the tallest building is Zifeng Tower.It has 78 floors.Different from the past，you can see tall buildings everywhere in Nanjing.

As for the environment，in the 1980s and before，Nanjing was full of trees，people paid little attention to the importance of plants and fresh air.Plants were cut down and the air got worse. Now, to improve the living place, people take all actions to grow plants and cut down pollution. The environment is getting better now.

To stop more teenagers from becoming addicted（沉迷） to the Internet, the Ministry of Education （MOE, 教育部） sent a letter on April 20, 2018 to all parents in China, It calls on them to pay more attention to their children's online activities. Nowadays more and more teenagers become addicted to the Internet. A 17-year-old boy from Guangdong Province nearly died after playing online games for 40 hours. It shows how bad things can get when one becomes addicted to the Internet. 

The MOE also sent a notice to primary and middle schools, asking them to manage students' Internet use. From now on, schools will pay more attention to their students' Internet use, as well as their use of mobile phones. Schools have been told to teach students how to avoid violent（暴力的）online contents（内容）. As long as students show signs of being addicted to the Internet, they can get help from their teachers to give up their addiction. 

To make better use of the Internet, experts suggest that students should limit（限制） their screen time to less than 1. 5 hours a day. They can develop healthy hobbies, like reading or playing sports in their free time. 

Many other countries are also taking action. The Australian government has called for schools to confiscate （没收） mobile phones during school hours. And in South Korea, there is a law that children under the age of 16 are not allowed to play online between midnight and 6 am.