学进去

Your Internet experience is ruined(严重受损的) when the speed is too slow—it takes so long to open a web page and the show you’re watching stops every few minutes. This can cross you.

But this could become a thing of the past. On June 3, 2019, the Ministry of Industry and Information Technology(中华人民共和国工业和信息化部) announced(宣布) that China would allow the commercialization(商业化) of 5G. This means major(主要的) telecom carries(电信运营商) will start to provide 5G services.

5G promises much faster data(数据) download(下载) and upload(上载) speeds, and more stable(稳定的) connections. This means that you will be able to download an HD movie in seconds and only experience a short delay(延迟) when sending and receiving data. According to the Straits Times(海峡时报), 5G will be able to improve many most modern technologies, such as driverless cars, wearable devices(设备) and entertainment(娱乐).

With a 5G network, the short delay in information exchange(交换) will allow driverless cars to run more safely, as they will be able to communicate in real time and avoid dangers. At the same time, 5G-enabled(启用5G的) wearable devices will keep doctors paying attention to the health conditions of their patients all the time and warn them at once if there’s something wrong. VR games will become more popular with 5G. The short delay of 5G will make the games feel even more real.

What do people around the world think of China? According to a global survey published _____September 15th, China’s international image is improving.

The survey ____by the China International Publishing Group and Kantar, a leading data and consulting company（数据咨询公司）. More than 11,000 respondents（调查对象）from 22 countries,including the US and France, took part in _____. The ______ questions covered topics ranging from one general impression of China to its performance in global affairs（事务）.

Generally, developing countries had ____ impressions of China than developed countries, giving China an average score of 7.2. The respondents also regarded China as _____ second most influential（有影响力的）country in global affairs following the US.

China’s performance in fighting the COVID-19 pandemic（新冠肺炎疫情）has been recognized by the world. In 2020,many countries ______ their borders（边境）and stopped the export of medicine and medical equipment. However, China has been trying to help those countries _______ need help.

China has sent 34 medical expert teams to 32 countries _____ offered help to 150 countries and four international organizations.

As for the future, China is expected _____ more contributions to the global economy. Its international image will continue to improve.

The Green Planet, a new documentary series (系列纪录片), gives us a new look at plants and shows the secret lives of plants.

Plants compete against each other to live. Each species has its own ways of defense. In tropical rainforests, different kinds of plants race for sunlight. The forest floor is described as a “battlefield” in the series as only two percent of the sunlight filters (过滤，渗入) through it. Some plants like Monstera (龟背竹属植物) spread their big leaves to reach light. But they are caught up in a vine (藤本植物) that tries to hitch a ride. Finally, they are both overtaken by a fast-growing balsa (轻木) tree. As the balsa has slippery hairs on its leaves, the vine can’t get a hold. Similarly, some trees make poisonous sap (毒汁) to protect themselves.

Plants also help each other and even communicate. In deserts, the roots of Euphrates poplar (胡杨) are connected. If a tree finds water, it will share it with others through the roots. Studies also show that plants use fungus (真菌，霉菌) in the soil as a way to “talk” to each other. It’s kind of like how Wi-Fi works. If a tomato plant gets a leaf disease, it can tell nearby plants about it.

The series not only makes us surprised at the plant world but pushes us to understand that plants are important.

Let children learn to judge(判断) their own work. A child doesn’t learn to talk by being corrected all the time. If he is corrected too much, he will stop talking. He notices a thousand times a day the differences between the language he uses and the language others use. Little by little, he makes the necessary changes to make his language like other people’s.

In the same way, children learn to do all the other things without being taught—to walk, run, climb or ride a bicycle. They compare their performances with those of more skilled people, and slowly make the changes. But in school we never give a child a chance to find out his mistakes and correct them himself. We do it all for him. We thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Soon he becomes dependent on the teacher. Let him work out with the help of other children if he wants it.

If it is a matter in math or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time on such daily work? Our job should be to help the children when they tell us that he can’t find the way to get the right answer. Let the children learn what all educated persons must learn, how to measure(估量) their own understanding, how to know what they know or do not know.

Let them get on with this job in their ways. School teachers can offer help if they ask for it. Some parents and teachers are worried that the children might fail to learn something that they will need to get in the world. Don’t worry! If it is important, they will go out into the world and learn it.

For years I have noticed that one common characteristic (特征) that successful people have is curiosity (好奇心). Why is curiosity important? Because it provides you with a fresh perspective (视角) and fresh ideas, Curious people can see things that many other people can’t. So how can you develop curiosity? Here are some tips that you can follow.

Expect things to be fun.

Instead of expecting things to be boring, expect then to be fun. This small change in your thinking can make a big difference. Once you do it, it will be much easier for you to find the fun side of almost everything. And also, more doors of chances will be open for you.

Always have questions in your mind.

Whenever you deal with a topic, have questions in your mind. Find the answers and ask new questions. Questions keep your mind busy. They can change your learning process from being borng to being interesting.

Take on a new challenge.

By taking on a new challenge, you will want to prove to yourself (or perhaps to others) that you can make it. One good way to do that is to create a competition with your friends to find out who can do something faster or better.

Connect new things with what you’ve already known.

Things will be more exciting if you can connect what you’re learning with what you’ve already know. Why? Because that improves your understanding of the world and allows you to see new things that you haven’t noticed before.

Add variety (多样性) to your life.

Find new possibilities by stepping into new topics. Read books in new fields. Meet people from all walks of life.

All the advice above can be summarized (概括) in just one phrase make things fun.

What time of day do you feel most alert (清醒的)? Are you more of a morning person? Or does your brain need a few hours to get going? A lot of research suggests that we should pay attention to our body clock. It can tell us what time of day we are best able to perform, according to the Wall Street Journal (华尔街日报).

When it comes to the human brain, many people work best later in the morning. This is because the body’s temperature takes time to rise through the day. Taking a warm shower when you wake up can help speed this up.

But everyone’s body clock is different. Morning people will rise early and work better early in the day. Evening people will wake later but their brain will work better toward the end of the day.

Research shows that we’re better at some activities at certain times of the day. Physical performance is at its best between 3 pm and 6 pm, so it s better to exercise later in the day.

Between noon and 4 pm, people begin to get distracted. This is partly because our brain becomes less alert after we eat a big meal. Research also shows that we become sleepy around 2 pm.

Finally, it is best to eat during our active periods. This allows our body to burn calories better and stops our blood sugar levels from getting too high.