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    Would it surprise you to learn that, like animals, trees can communicate with each other and pass on their wealth to the next generation--their young trees?

    Suzanne Simard, forest ecologist at the University of British Columbia, explains how trees are much more complex than most of us ever imagined. Simard and her colleagues have made the major discovery that trees and plants really do communicate and interact with each other.

    Trees live on through their group work and support, passing around the resources such as nitrogen and carbon “depending on who needs it by miles of underground fungi（真菌） networks. This makes sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This 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 affects all.

Simard talks about "Mother Trees". These are the largest, oldest trees that rise above the forest, a concept explained in the movie Avatar. 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 these trees pass on the wealth to the next generation, transporting important resources to young trees 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 losing the chances to save the whole forest.

    "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 a chance.” If we could send this message to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.

What would you do if you see someone hurt badly? The following will help you to learn some important skills to give casualty (伤员) first aid.

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The first and most important thing you must do is to make sure the place is not dangerous. Can you see anything that might not be helpful to you? Can you hear anything that could be dangerous?

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When you see someone has been hurt, you may feel scared. If you feel yourself starting to be nervous, try to calm yourself down. For example, talk to people you trust about what happened, and you'll be relaxed.

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When someone needs first aid, talking to him will help him to stay calm and feel safe. Even if he does not answer you, you should still tell him what you are doing. It will let him know that you are helping him.

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Sometimes, the casualty will need more help than you are able to give. The best thing you can do is to phone some people for help. They can give you some useful advice or offer you some help.

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There are also many other things to do. Try your best to help the casualty. Asking people around you for help is really better than waiting for doctors. Besides, you can also try to keep in touch with his families and friends.

Many of us spent our childhoods dreaming of becoming astronauts. However, only a few would make it. But does that mean you'll never get the chance to work in space? Not necessarily.

In fact, some of the space jobs are not only for astronauts and they all sound just cool. One of the most interesting space jobs is "chief sniffer(嗅探员)". NASA has already had a sniffer named George Aldrich.

Using your nose at work might sound a little strange, but the job is actually important. A spaceship is of small size and high temperature, which makes smells inside stronger. And once a spaceship is sent, astronauts have no ways to run away from unpleasant smells. More importantly, smelling objects can help find things that could be harmful to astronauts' health.

Another job, the "space tour guide", may seem a little ahead of its time — after all, there aren't any tourists there. But now, many companies are starting to provide space trips and some rich space lovers have ordered the tours. It may not be long before space becomes one of the top travel destinations(目的地).

Being a space tour guide needs rich knowledge to help passengers get the most out of their journey. Space tour guides also need to be excellent storytellers so that passengers can experience the true beauty of the space travel.

Astronauts often spend long time in space with the same group of people, so a "space psychologist (心理学家)" is also needed to help astronauts overcome bad feelings. "We're crossing the boundaries(界限) between science fiction and reality,"s aid Rohit Talwar, director of the US company Fast Future Research, "Things we've seen in movies are now becoming reality!"

Some interesting things about Start of Spring

The traditional Chinese solar calendar divides the year into 24 solar terms. Start of Spring, the first solar term of the year, starts on Feb. 4th and ends on Feb. 18th this year. After that everything turns green and is full of energy; people clearly see that the daytime is becoming longer and the weather is becoming warmer. Here are some interesting things about Start of Spring. 

weather is becoming warmer. Here are some interesting things about Start of Spring. 

◆   Flying a kite

Spring is the best season for kite-flying. As a tradition, it has a history of more than 2, 000 years. It can help build one's health and prevent diseases. 

◆   Erecting the egg (立蛋)

In China, it is said that the egg can be set upright on the first day of Start of Spring. It is believed that if someone can erect the egg on the first day of Start of Spring, he will have good luck in the future. 

◆   Making a Spring Ox (做春牛)

This custom in Shaanxi is practiced right before the Start of Spring. The officers ask some artists to build an ox with bamboo, wood, paper and paint. When the paper ox is ready, people will worship (敬神) it and hope for a harvest year. 

◆   Posting spring calligraphy and paintings (张贴春季字画)

The custom of posting calligraphy and paintings on one's door in the spring was first celebrated during the Tang Dynasty (618-907). People would do so to welcome spring and pray for good luck on the first day of Start of Spring. 

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A player recently bought himself a two- meter- long golden cudgel(金箍棒) after playing the video game Black Myth:Wukong. It is similar in every de tail to the magic stick from the game.

The stick is now a popular product on Taobao and Tmall. On these platforms, other products co- branded with the game are also selling well.

Black Myth is China's first AAA video game. Since it came out on August 20, it has taken the gaming world by storm. It sold 10 million copies within the first three days. This makes it one of the fastest- selling video games.

Beyond that, the game has had a" Black Myth" effect across several industries. Sales of home video game consoles(游戏机) have increased greatly from last year. Other gaming- related goods like laptops, keyboards, mice and headphones have all seen big increases in sales.

Moreover, its success has led to a travel boom in parts of China. Many scenes in the game are from real places. Players want to follow their hero and visit the same places. As a result, several sites have reported increased tourist activity. Some have even seen ticket sales three times higher than before. For example, the Yuhuang Temple in Shanxi Province, has become one of the most popular tourist destinations in China. Large number s of visitors go there to see its famous coloured sculptures(彩塑) from the Jin, Yuan and Ming dynasties.