With the growing popularity of the Internet, more and more children are addicted to play online games day and night. It does harm not only to our health, especially to their eyes, but also to their studies.

Comparing with online games, many traditional games, like hide-and-seek, benefits kids mentally and physically. They were ever popular to several generations, which not only learned something valuable but also had fun playing the games. Therefore, the games are dying away now.

Personal, I think teachers and parents should take measures to limit their children's Internet time. Let children to know the harm of online games and the benefits of traditional games. Help children judge the healthy and unhealthy games. What's more, we should often organize events for children in which traditional games played.

4 . Singapore uses about two billion liters of water every day-a number it expects could double in the next four decades.

That kind of consumption is adding pressure to the Asian city state to address growing concerns about global water shortage. So it's building new technology to prepare itself for a future where obtaining clean water will be even more difficult. "Singapore truly has become a global water center,"said Shane Snyder,executive director of the Nanyang Environment & Water Research Institute at Singapore's Nanyang Technological University. “But as it stands, it imports approximately 40% of its water today. And with climate change,that water has become far less dependable.”

Singapore, meanwhile, is home to more than five million people and is covered in fountains,reservoirs and other water features-including the world's tallest indoor waterfall, The Rain Vortex that pumps about 45,000 liters of water per minute. But it has no natural water sources of its own,instead relying heavily on recycled water and imports from its neighbors.

Snyder's research facility is one of several places developing solutions for Singapore's water dependency. The hope is to create projects that could be used across the city. "What we have become used to as reliable water may quickly change-so we have to be prepared,and we have to be thinking about the basic facilities in advance. " Snyder said. " There's a big drive to become water independent-to control our own future -and that is largely dependent on the technologies we're developing. "

Another company,Wateroam, is already taking innovation from Singapore to the rest of the region. Founded in 2014,Wateroam says it has developed a lightweight,portable filtration（过滤）device that has already provided clean drinking water to more than 75,000 people across Southeast Asia. Wateroam CEO David Pong said one of the most innovative aspects of the product is its simplicity. The water filtration device is no bigger than a bicycle pump,yet it can provide clean water to villages of 100 people for up to two years.

"We've been very blessed to have access to clean drinking water," Pong said. It's necessary to bring the privilege to the rest of the region, and advocate that clean water is an essential aspect for life on Earth,according to him.

5 . Gerardo Ixcoy is a 27-year-old teacher in Guatemala. He teaches in the area where having electricity is something of a luxury and students have no access to mobile apps or computers, which became a problem when Guatemalan government had to choose distance education for students at home because of COVID-19 in mid-March.

Gerardo Ixcoy felt that he had to teach those children living far from the digital world. After all, education is a universal right. But what was the solution?

Gerardo bought himself a secondhand tricycle with his savings. Once he had the tricycle, the next step was to change it into a classroom on wheels. He put a roof with a solar panel（太阳能电池板）on it, along with a screen to avoid the spread of COVID-19. He fixed a whiteboard on it so he could explain to the students the basics of primary education： math, the local language and the national language Spanish.

The purpose of the solar panel is to provide constant power for a small loudspeaker so he can teach from a distance. It's a matter of respecting the healthy distance required to be safe from the virus. He, the teacher, stays outside, and the student participates from his or her house.

He tries to visit his students at least twice a week, riding his classroom — cycle. The children he serves say that, although he visits them for only a few hours a week, they look forward to it. They appreciate his visit because they know he has limited time he can devote to them. They must take advantage of it to learn.

6 . Mobile phones have become a problem for middle schools. Some middle schools in Australia have prevented students from carrying mobile phone during school hours.

Mobile phone use among children has become a problem for the school this year. Several children have got mobile phones as Christmas gifts, and more students will want them.

Mary Bluett, an official, said mobile phone use is a distraction(悲伤的事) to students during school hours and it also gives teachers so much trouble in their classrooms. Teachers were also saying that sometimes students might use phone messages to cheat during exams.

She said some schools had tried not to let students use mobile phones at school. Some parents felt unhappy because they couldn’t get in touch with their children.

Many teachers said students should not have mobile phones at school, but if there was a good reason, they could leave their phones at school offices. They also said there were many reasons why the students should not have mobile phones at school. They were easy to lose and were a distraction from studies.

Many people say that they understood why parents would want their children to have mobile phones, but they think schools should let the students know when they can use their mobile phones.

7 . This is a real story about an old man in China. Sixty-three-year-old Zhuang Guorong is a_______rural primary school art teacher, who has had a life of_______for more than 40 years.

Every year, the strong, younger-than-his-actual-age pensioner (领养老金者) goes to “the farmers’ home” of Chenyang Community to paint or_______other villagers how to paint.

“The farmers’ home”, a public building,_______the venue (聚集地点) for a_______ of the Sheyang Farmers Painting Institute. The institute is a government _______cultural organization in Sheyang County, in the north of Jiangsu Province, east China.

Zhuang works at the institute part time, and each year he_______up to ten paintings, which are then _______ by the local government. He_______ around 5,000 yuan — that’s about 740 US dollars — a year by doing this________ .

As well as earning himself some money, Zhuang says the job gives him an opportunity to ________his views of life to his fellow countrymen,________ the elderly.

“This painting is about a nursing home. We now live in a(n)________ society. We can no longer ________the traditional way of taking care of our elderly just with our children doing it.________, professional nursing homes are________ for elderly people’s ________.”

“In this painting, I________a scene of young people celebrating the birthday of a senior citizen. The ________I want to convey is that life in one’s later years can be happy. And all of my paintings are like this one — based on our ________lives.”

Of all my teachers, Mr. Jenkins is the one which impresses me most. Though he is 34, yet he looks very young for his age. And he's one of the most popular teacher in our school.

Comparing with other teachers, Mr Jenkins pays more attention to his ways of teaching. He tries various of ways to make his classes lively and interestingly. In his opinion, we should not only know "what", and also understand "why". So, instead of giving us answers immediately, he inspired us to think by ourselves whenever he puts forward questions. With her help, we've learned how to analyze and settle problems. Even the students who previously lacked confidence now take active part in his class. We all appreciate that he has done for us.