The 2016 Rio Olympic Games have come to an end. Without doubt, many Chinese sports fans sat in front of the TV and cheered our athletes on, hoping that they would get as many gold medals as possible.

    But sometimes our desire for gold medals can result in the sadness of failure. When Liu Xiang, China's track hero, pulled out of the Beijing Olympics due to injury, he greatly disappointed many Chinese sports fans.

    But things are different now. In the 2016 Rio Olympic Games, we saw a healthier and more lenient Chinese attitude toward the sports people, fully in line with the Olympic spirit.

    China didn't win any gold medals on the first day. But, instead of criticizing the athletes who failed to finish on top of the podium(领奖台), the majority of fans were happy with their efforts. “Reacting in the right way when an athlete misses out on gold shows the maturity of a person, and is also a challenge for a country to face up to in the process of development,” commented CRI.

    Swimmer Fu Yuanhui won fans' hearts, even if she only won a bronze medal in the 100m backstroke final. Her fans on her Sina Weibo micro blog have increased 100,000 to over 6 million. Many sports fans appreciated her straightforward character and attitude toward competition.

    “The warm support from Internet users shows that public attitude toward competitive sport and the Olympics have gotten to a higher level,” said an article in the People's Daily.

    Two new studies suggest that modem running shoes could increase the risk of injuries to runners.

    One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine (跑步机). Sometimes they wore running shoes. Other times they ran barefoot.

    Researchers from the JKM Technologies Company in Virginia, the University of Virginia and the University of Colorado did the study.

They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.

    The study appeared in the official scientific journal of the American Academy of Physical Medicine.

    The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.

    They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.

    Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.

    Harvard's Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.

    But the researchers do not suggest that runners immediately start running barefoot. They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.

    The study was partly supported by Vibram, which makes a kind of footwear that it says is like running barefoot. The findings have gotten a lot of attention. But the researchers say there are many problems in the way the press has reported in their paper. So they have tried to explain their findings on a Harvard Website.

    Imagination and fantasy can play an important role in achieving the things we fear. Children know this very well. Fred Epstein, in his book If I Make It to Five, tells a story he heard from one of friends about Tom, a four-year-old boy with a cancer in his back bone. He came through several operations and a lot of pain by mastering his imagination.

    Tom loved to pretend, and he particularly loved to play superheroes, Dr. Epstein explained that it was actually a brilliant way for his young mind to handle the terrifying and painful life he led.

    The day before his third trip to the operating room, Tom was terribly afraid. ”Maybe I could go as Superman,”he whispered to his mom. Hearing this, the mother hesitated for a while. She had avoided buying the expensive costume（戏装），finally she agreed.

    The next day Tom appeared as the powerful Superman, showing off through the hospital halls and coolly waving his hand to the people greeting him along the way. And Tom, with the strength of his fantasy, successfully made it through the operation.

    The power of imagination need not be reserved for children only. We all have the power to use our fantasies to attempt things we never thought possible, to go through those things that seem impossible, and to achieve what we never believed we could. Just as Dr. Epstein puts it, ”If you can dream it, you can do it.”

    It doesn't mean that you should dress as a superhero for your next job interview. But, next time you are texted in a way that seems impossible, imagine what it would take to overcome it .Become the person you need to become to win over your challenge and do it in your mind first. So, let your imagination run wild, and dare to dream.

    If you want to become a fluent English speaker you should take some advice. There are four skills in learning English. They are reading, listening, speaking, and writing. The most important thing you must remember is that if you want to improve your speaking and writing skills, you should first master the skills of reading and listening.

    Read as much as you can. But your reading must be active. It means that you must think about the meaning of the sentence, the meaning of the unfamiliar words, etc. There is no need for you to pay much attention to grammars or try to understand all the unfamiliar words you come across, but the fact that you see them for the first time and recognize them whenever you see them, for example, in other passages or books, is enough. It would be better to prepare yourself a notebook so you can write down the important words or sentences in it.

    As for listening, there are two choices: besides reading, you can listen every day for about 30 minutes. You can only pay attention to your reading and become skillful at your reading, then you can catch up on your listening. Since you have lots of inputs in your mind, you can easily guess what the speaker is going to say. This never means that you should not practice listening. For listening you can listen to cartoons or some movies that are specially made for children. Their languages are easy. Or if you are good at listening you can listen to VOA or BBC programs every day. Again the thing to remember is being active in listening and preferably taking some notes.

    If you follow these pieces of advice, your speaking and writing will improve quickly, and you can be a fluent English speaker one day.

    Everybody seeks happiness in the world. We will be really happy when we get a new car or a big house or get married... The thing is, if we are continually searching for happiness in the outside world, we will be very disappointed. It seems as if we are forever chasing it and it is always just one step away.

    Happiness is a short state of mind, just like the state of sadness or joy or anger. It would not be possible for us to be in a happy state 24 hours a day. If you think that sounds laughable, think about being at a funeral when everyone is mourning. Would it feel right to go about with a huge smile on your face?

    What we go through in our lives helps us grow and understand the value of happiness. We need to be able to respond in all manner of ways according to what we are dealing with at any given time. All emotions and states are part of the life.

    Happiness can be found in reaching out and being in relationship with people. Though time or money may be lost in helping others, these will become our happy memories. Happiness is a dance with whatever in front of you. It is a deep connection to everything around you. It does not come from expecting others to bring you joy but from how you can create joy for others.

    If you want to experience happiness more often, see what you can do to put a smile on someone else's face each day and notice how much happier you feel when you have achieved that. Happiness is not to be found in material possessions. It is freely available to everyone at any time. All that is required to experience happiness is that you place your focus on moments in your life that make you smile.

    Humans and elephants don't always get along. In Africa and Asia, elephants damage equipment, farmers' crops, and natural habitat for other species. If an elephant becomes a problem, humans may kill it. So local people and animal protectionists are trying to find better ways to keep elephants away from sensitive places. Now, researchers think they have a good tool to prevent elephants: honeybee pheromones (信息素).

    “Elephants dislike being stung(叮咬) in the trunk, because it's an extremely sensitive organ. Imagine being stung in your nose by a bee, and multiply that a few thousand times.” said Mark Wright, a professor at the University of Hawaii.

    Kenyan farmers have long known that if they hang live beehives (蜂箱) around their farms, they will drive elephants away. The problem is how to manage hundreds of thousands of hives, if you have a huge area to protect. And then the idea came up to look at the alarm pheromones, which are chemicals that the bees release to launch an attack on something that's damaging the hive.

    So the researchers tested out an artificial mixture of chemicals that imitates (模仿) honey bees' alarm pheromones. The researchers hung white socks treated with the artificial mixture as well as untreated control socks around an elephant watering hole, and then observed the animals' behavior. “Elephants are really curious creatures. They'll walk along and see something like a sock hanging on a branch. If it's not treated with the alarm pheromones, they'll pick it up, throw it around, and try to taste it, things like that. And in the case of the treated ones, they would show immediate signs of unease or uncertainty, and they'd eventually back off from them.”

    In order to avoid the elephants more effectively, the researchers plan to make the pheromone mixture purer. That way, elephants will stay far away from wherever they should not be going-and both elephants and humans can coexist a bit more peacefully.