【推荐1】How To Take Care of your Eyes

A lot of people don’t think about protecting their eyes before something goes wrong. There’s a lot we can do to keep our eyes healthy. Here are some of our tips.

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We’ve always been told we should be getting 5 different kinds of fruit or vegetables a day. However, a study shows it would be much better to have 10 kinds of fruit and vegetables a day!

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Don’t look at a computer screen all day. You should give your eyes a break. Please follow the 20-20-20 rule. Every 20 minutes look 20 feet into the distance for at least 20 seconds.

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Even on cloudy days, ultraviolet light (UV) (紫外线) can harm your eyes. Make sure your sunglasses have 100% UV protection, this will mean you’ll be protected from both UVA and UVB radiation.

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Every time you touch your eyes with unclean hands, you’re putting bacteria (细菌) into the eye area. Make sure hands are clean and dry when you are wearing your glasses.

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A lot of people will say they don’t have the time to get their eyes checked. They might also think there’s no point because they aren’t in pain and they can see well. Regular sight tests are important and will help you be out of trouble before it can get worse.

【推荐3】With her eyes always feeling tired as she prepared for an exam, 16-year-old Sun Ran went to the hospital with her parents in January. She was shocked when she found out that her eyesight dropped from 5.0 to 4.6. “Some of my friends have had the same experience recently,” Sun said.

In fact, poor eyesight among Chinese primary and high school students went up from 59.2 percent to 70.6 percent in the first six months of 2020, according to the Ministry of Education (教育部).

To protect students’ eyesight, the Chinese government has worked out new requirements (要求) that will take effect on March 1st, 2022. For example, according to the requirements, the size of text in students’ textbooks should not be too small. Teachers should also avoid using projectors (投影仪) or other teaching helpers that are too bright, Beijing Daily reported.

There are also requirements for desks and classroom lights. For example, these lights should give off as little blue light as possible. Blue light is bad for our eyes, as it can kill the photoreceptor cells (感光细胞) we need for vision, according to Harvard Medical School. Many of the electronic products (电子产品) we use every day, such as our phones and computer screens, give off blue light.

What about other rules? The government has taken action to protect students’ eyesight in China. In May 2020, the National Health Commission (国家卫生健康委员会) asked schools to make sure that students should have at least two hours of outdoor activities a day.

【推荐1】Different cultures have different ideas about why people catch colds. For example, in the United States, some people think that you can catch a cold if your feet get cold. So, mothers tell children to wear warm boots in the winter. In other places, including parts of the Middle East, some people believe that strong winds cause colds. So, on trains and buses, people usually don’t like to sit next to open windows. In parts of Europe, some people think that wearing wet clothes will give you a cold. They say that after you go swimming. you should quickly put on dry clothes.

Today, scientists know that colds are caused by a virus (病毒). But the old ideas are still very strong, and many people still follow them to avoid (避免) getting ill.

【推荐3】Scientists believe the Earth is 4.6 billion years old. However, the mountains, valleys (山谷), hills, rivers, deserts and forests we see today are much younger than that. For example, Mount Qomolangma is about 60 million years old and the Amazon rainforest is only 10 million years old. The youngest sea in the world is the Baltic Sea, at about 15000 years old.

The Earth is always changing because of volcanoes (火山), earthquakes and of course, wind and rain. Some of these changes are very slow and others are quick. Water and ice can make very great changes to the planet. For example, rivers of ice can cut through mountains and make lakes and deep valleys. Many volcanoes are under the oceans and sometimes they become new islands. This is happening in the South Pacific.

It’s normal for our planet to change, but at the moment, scientists think it’s changing faster than usual. Some deserts are growing and many forests are getting smaller. The weather is getting wetter in some places and drier in others, and there are more big storms. According to the research, the sea level will continue to rise in the next hundred years. As a result, many cities will possibly be covered by water and much of the most productive farming areas will be lost. Some island countries are likely to disappear on the map of the world.

These changes will bring great harm to the planet. However, they can be beneficial to some people. For example, as the Arctic (北极) is getting warmer, some people in Greenland now own businesses and sell vegetables they grow on their land. That wasn’t possible in the far north 50 years ago. Farmers in Greenland like the warm weather and hope it will continue.

【推荐1】Takeout boxes, used masks, fish bones, autumn leaves…Do you know which trash bin (垃圾箱) each of these goes in? To help solve this problem, three students from Xi’an Aerospace City No. 1 High School made a smart trash bin that uses voice recognition. The trash bin can even understand different Chinese local languages.

“We find it’s troublesome to find the right trash bin for our daily life and we know that many people face the same problem. That’s why we want to give a hand,” said Zhang Zehua, 17, who was building a garbage-sorting database (数据库). Starting last April, the three students built databases and made a sorting system for their smart bin. They learned how to use less energy and allow the bin to work for a longer time at a lower temperature.

Team member Zhang Zhenjie, 16, had a hard task to complete. He was collecting data. While talking with his classmates, he found that people had several different ways to describe the same piece of garbage. So he made some change of the voice recognition system and greatly increased its accuracy. He also counted how much garbage a family makes daily. This helped him choose the right space for the bin.

The three teenagers are getting a patent (专利) for their design and looking for producers. They will continue to improve the trash bin and introduce it to more communities in the future. Maybe more families will use their smart bins in the future.

【推荐2】What do you often do when you are free? Many people like running these days. They run for their health. Doctors say many of the health problems come from these bad habits: eating too much, drinking too much, smoking too much and not having enough exercise. Doctors tell us, "Eat less, don' smoke and exercise more.

Running is good exercise, because it helps most people lose weight（减肥）. One 68-year-old woman runs three times a week. She runs to lose weight. "I love to eat," she says. "So I have to run every week to lose weight. And it helps a lot."

Running is good for our health in other ways, too. Many runners say running makes colds and other small health problems go away. That's because it helps to have a healthy body. Running is my doctor, "says one man.

Running can also help people to relax. So today men and women of all ages like running.

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In our city, there is a big zoo. There are a lot of animals in it.

Mona is an Australian koala. She is seven years old. She is very cute. She likes sleeping during the day. But at night she gets up and eats leaves. Mona doesn’t drink water for months. But she is healthy, because she can get water from the leaves.

Here is a big house. A lion lives in it. His name is Gerry. He is ugly. He is from South Africa. Meat is his favorite food. Gerry is very lazy. He sleeps and relaxes for 20 hours every day. Today is Gerry’s eighth birthday. The workers in the zoo are having a birthday party for him.

This is a big elephant. His name is Johnny. He is from India (印度). He’s eleven years old. He has bad eyesight (视力). He’s friendly and clever. People can teach him to do something for them.

Tiantian is a cute panda. She is five years old. She’s from China. She is very beautiful, but she’s shy, so please keep quiet. She likes eating bamboos (竹子) and drinking water. She relaxes for about 10 hours every day.

【推荐2】Now students’ English handwriting(书写) gets worse and worse. That makes their teachers feel worried. Is your English handwriting beautiful? If not, here are four steps that really work!

Use paper with lines

Using paper with lines can keep you writing straight instead of up or down when you write English words or sentences. Those lines on the paper can help you to write words in the right size. Be sure to fill the lined space completely. And make sure those capital letters are written properly.

Slow down

If your writing is hard to read, try slowing down a little. For some kids, going slower makes the handwriting clear. If you write too fast , it’s hard for you to stop where you should, and even worse, you may make more mistakes .

Hold your pencil right

When you hold your pencil the correct way, writing is much easier. Some kids press down really hard when they write. That makes the handwriting not nice. Try to be relaxed and don’t hold the pencil so hard. Let your writing appear(显得) nice and clean. If you do so, people will guess you are a student with a good habit.

Draw more pictures

Drawing can improve your handwriting. You need to use the skills to control your pencil better when you are drawing pictures. Even though you have no chance to draw at school, you can practice by yourself at home.

Handwriting is very important. Imagine you are a world-famous movie star or a well-known sports player, what do you do when your fan run up to you? Give them your signatures, of course!

【推荐3】Do you know hiking? Hiking is good for people’s health. Many hikers like to hike in the countryside, forests and mountains. Just walking for fun is the first kind of hiking. Many people like to hike in city parks or just on the sidewalks.

A hike can take a few hours or weeks. For most hiking, people just need clothes and shoes that are fit（适合）for the weather. At the beginning, hikers should start with walks that they can do in one day. As you get stronger, you can go on overnight hikes. Later you can go longer than that. You can make your hike last for days or weeks.

For safety（安全）, hikers should hike with someone. You should always have one or two friends with you. It is also a good idea to carry a map.

Backpacking is another kind of hiking. People carry food, clothes and other things on their backs in a pack. Backpackers can stay many days in places where there is no food to buy. They carry what they need on their backs.

Now, put on your hiking shoes and take a hike!