【推荐1】"I sometimes get up at three or four in the morning and I surf the net."

"I often check my e-mail forty times a day."

"I often spend more than three hours during one time on the net."

"I spend more time in chat rooms than with my 'real-life' friends."       

Do you know any people like these? They are part of a new addiction(瘾）called Internet addiction. Internet addicts spend at least thirty to forty hours online every week. The use of the Internet can be an addiction like drug（毒品）use. People lose control（控制）of the time they spend on the Internet. For example, one college student was missing for a few days. His friends are worried, and they call the police. The police find the student in the computer room: he was surfing the net for a few days.

Studies show that about 6-10% of Internet users become addicted. And people worry about the teens because the Internet is changing the playing field for some of them. They spend more time in cyberspace than in the real world of friends and family.

Is "surfing the net" a hobby or an addiction for you? You may have a problem if you have these symptoms:

*You do not go to important family activities or you do not do school work because you like to spend hours on the Internet.

*You can't wait for your next online time.

*You plan to spend a short time online, but then you spend several hours.

*You go out with your friends less and less.

【推荐2】Our ancestors used stars to guide them on a clear night. Now we have navigation systems (导航系统) to help us find our way, with the latest being the Beidou Navigation Satellite (卫星) System(BDS).

The BDS is completely built by Chinese engineers. With the last satellite from the Xichang Satellite Launch Center flew into space on Jun 23, 2020, the network of 59 satellites has been completed. On July 31, 2020, Beidou started providing full-scale services (全方位服务). It’s difficult to imagine what those satellites can’t do in our daily lives.

When you unlock one of the Hellobike’s bicycles, you are using the BDS. This popular bike-sharing company came out with two new bike models which have the positioning service this year. Users can also find shared bikes more exactly thanks to Beidou.

However, the BDS doesn’t just work on way. As the largest space-based system in China, Beidou uses a special two-way communication system, including its ability to receive messages sent by people from areas with poor communication signals. It isn’t for users to chat online. Instead, it plays a role when disasters like earthquakes happen and communications don’t work.

After the Wenchuan earthquake in 2008, all ground-based communication tools couldn’t work. Though Beidou could only send 120 characters(字符) in just one message at that time, communication between these poor areas and helping centers was successful. Now, it can sent 1, 200 Chinese characters in a message. It is widely used in areas such as disaster alarms, and information release.

Now, Beidou is more and more widely used in our everyday life. As SunJiadong, former chief designer of the BDS said, “Beidou can be used in more industries than you can imagine.”

【推荐3】①Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to their young trees?

②Professor Simard, forest ecologist (森林生态学家) from the University of British Columbia, explains how trees are much more complex (复杂的) than most of us ever imagined. Although Charles Darwin (达尔文) thought that trees are competing for survival of the fittest, Simard and her team have made a new discovery and showed just how wrong he was. In fact, the opposite is true: trees survive through their group work and support, passing around necessary nutrition (营养) like Nitrogen (氮) and carbon “depending on who needs it”.

③Nitrogen and carbon are shared through miles of underground fungi (真菌) networks. This makes sure that all trees in the forest ecological system give and receive nutrition to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神经元) in our brains, and when one tree is cut down, it influences all.

④Simard talks about “mother trees”. These are usually the largest and oldest plants on which all other trees depend. These “Mother Trees” are connected to all the other trees in the forest by this network of fungi, and may manage the resources of the whole trees and plants in the forest. She explains how dying trees pass on the wealth to the young trees, transporting important nutrition to them so they may continue to grow. When humans cut down “Mother Trees” without paying attention to these highly complex “tree societies” or the networks on which they feed, we are reducing the chances to save the whole forest.

⑤“We didn’t take any notice of it” Simard says sadly. “Mother trees move nutrition into the young trees before dying, but we never give them chances.” If we could explain the message clearly to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.

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【推荐2】A promise can go a long way in personal relationships. It is a commitment (承诺) to follow through on your word. But what does it mean when you say “I promise…”, and how does this influence your relationships?

We all have heard “I promise…” time and time again. Promises help us get closer to those we love. Studies suggest that keeping promises holds a lot of emotional value. When we break them, there is a decline (降低) in trust. But why is it so important to keep a promise and how do we stick to it? Here are some important reminders of promises.

Promises are hard work, Usually, it is not easy to follow through on a promise. They require us to step outside of our wants and achieve something for someone else or challenge ourselves to break old harmful habits.

Promises are meant to be taken seriously. Do you remember the first time someone broke a promise to you? When a promise is broken, your reputations (名声), relationships and personal charm suffer. Take each promise you make seriously to make sure that you are not the one causing unnecessary distrust.

Promises are proofs (证明) of love, friendships, family and human connection. Actions speak louder than words. Promises are actions that affirm our love and connection with other people. Whether that connection is through friendships, family or strangers, promises affirm that we want to pass on our feelings to others.

Promises are a necessary part of building our relationships. Making and keeping promises plays an important role in our lives. So here’s a word of advice; always keep your promises.

【推荐3】These days we are bringing up kids in a generation (一代) that we like to call the iPad generation. Kids enjoy spending hours playing on their computers and phones. Since it seems that most of us parents can’t live without the computer. (iPad, phone), it is normal for our kids to feel that that’s the way to go.

    1     Some of them are “I don’t want my kid on the computer; Am I right not letting him use it?”, “Should I allow him to play for so long?”, and “When should I say no?”

A lot of parents believe they shouldn’t let their kids use computers.     2     At the same time, there is another set of parents who let their kids use their iPads or their phones for long hours. They feel their kids have to be good at using them, or they will be left behind (落后).

    3     It can play a big role in the development of our kids. It can be I used even without an Internet connection (连接). Kids can use it to draw pictures, read books, listen to music or play games just like any other toy. However, the number of hours that they use it should be controlled.

Let us talk about the Internet now. Is it a big bad wolf? Not really.     4     Kids can know what is happening around them, and read wonderful facts about anything that interests them. There are a lot of healthy, kid-friendly websites that our kids can use. If you do allow your kid to use the Internet, be there while he or she uses it.

    5     Don’t let the Internet turn into something that just helps you to take care of your kid.