Body language is one of the most powerful means of communication, often even more powerful than spoken language. It is said that our body movements communicate about 50 percent of what we really mean while words only express 7 percent. So, while your mouth is closed, your body is just saying.

    Arms. How you hold your arms shows how open and receptive you are to people you meet. If you keep your arms to the sides of your body or behind your back, this suggests you are not afraid of taking on whatever comes your way. Outgoing people generally use their arms with big movements, while quieter people keep them close to their bodies. If someone upsets you, just cross your arms to show you're unhappy!

    Head. When you want to appear confident, keep your head level. If you are a monitor in class, you can also take on this position when you want your words to be taken seriously. However, to be friendly in listening or speaking, you must move your head a little.

    Legs. Your legs tend to move around a lot more than normal when you are nervous or telling lies. If you are at interviews, try to keep them still!

    Posture (姿势). A good posture makes you feel better about yourself. If you are feeling down, you normally don't sit straight, with your shoulders inwards. This makes breathing more difficult, which can make you feel nervous or uncomfortable.

    Mouth. When you are thinking, you often purse(噘嘴) your lips. You might also use this position to hold back an angry comment you don't wish to show. However, it will probably still be noticed, and people will know you're not pleased.

    Face. When you lie, you might put on a false face. But that expression would crack briefly, allowing displays of true emotions such as happiness, sadness, disgust (厌恶) and fear to come through.

C

    Modern fathers spend an average of six and a half hours a week playing with their children. A study said this equals 338 hours a year, or just over 14 days, three whole days more fun time than their own fathers spent with them.

    The report said modern parents are ''adventurous”, as many encourage their children to play outside. A third of parents also prefer family trips which encourage children to learn new skills, and most say that having fun together improves family ties. The study said the lack of time that today's parents shared with their own dads encouraged them to be more active with their children.

    Dr. Amanda Gummer, psychologist and founder of Fundamentally Children, a company which provides advice on child development, said being adventurous helps children. She said, “Being adventurous from an early age helps children develop important skills that will last throughout childhood and set them up for a healthy and successful adulthood.”

    Outdoor activities are a popular choice for dads and their children, with 40 percent choosing nature trails and 26 percent looking for wildlife, while 13 percent say their top outdoor activity is climbing trees. The simple things are the most popular, with 46 percent going to the park and 41 percent choosing to kick a ball around their children.

    Dr Gummer said, “Children are able to challenge themselves by being more adventurous, and they can be safe in the knowledge that their dad will be there to help if things start getting out of control. Parents can help encourage their children's adventurous, outdoor spirit with wildlife treasure hunts and adventure playgrounds. They can even do more exciting things, like going on camping trips.

    Life affects friendships. As we grow, marry, fight in wars, move across the country or change jobs, old friendships fall away and new ones form. As long as we live, the things around us change, and as long as things change, friendships are affected.

    When we were children, we had best friends. No matter what happened we were still friends. We live our lives, however, and do what life calls for us to do, and as we got older, memories fade, faces blur(变得模糊),and even friend's names from childhood are forgotten.

    Do you have a question about friendship? Do you wonder what to do with a friend who is no longer friendly? Perhaps you will see that you can't control others. If someone wants to be your friend, it is their choice. All you can do is treat them well and do the best for them when you are with them. Then you wish them well when they leave.

    You can talk to old timers and they will tell you that life is full of incredible(令人难以置信的)joy and incredible sorrow, and that what bothers you today will one day becomes a memory and the pain will be gone. Seniors might tell you that you will learn more as you get older. They will tell you that friendships come and friendships go. Sometimes when they go it will hurt, but you will be okay with it. It's the way life works, after all.

    Since 2013,Torobo, a robotic are designed to test the limits of artificial intelligence, has had one ambition—to be admitted to the University of Tokyo, one of Asia's top-ranked educational institutions. Although equipped with an extensive database of textbooks and other teaching materials, Torobo has repeatedly failed to obtain the university's required minimum 80% score in the National Center Test, a yearly standardized entrance examination adopted by Japanese universities. This year was no exception.

    In early November, Torobo, along with millions of Japanese high school students, took a mock(模拟的)exam to prepare for the all-important standardized test.

    Torobo's total score of 525 out of 950, which was higher than the national average, was enough for it to get admitted to many other influential Japanese universities.

    However, its standard score of 57.1%, though 14 points higher than in 2015, still fell short of the minimum required for the University of Tokyo.

    A closer analysis of the results showed that Torobo was able to draw from its database to solve knowledge-based questions and ones involving complex mathematical calculations, but it had a hard time thinking independently, failing to comprehend multiple sentences and phrases to arrive at the logical conclusions. This weakness was reflected in its shabby English scores.

    Fortunately, the robot's creators have decided to free Torobo from its four-year sufferings. Noriko Arai, professor of the University of Tokyo who heads the team, says, “From the present results, we are able to evaluate the possibilities and limits of artificial intelligence. From now on, we will grow its abilities in the fields where it is doing well and aim to improve them to levels that can be applied in industry.” So while Torobo will never graduate from the University of Tokyo, it can still look forward to a bright future!

    Climate change, pollution, overuse of water and development are killing some of the world's most famous rivers including China's Yangtze. India's Ganges and Africa's Nile. WWF said on Tuesday. At the global launch of its report "World's Top 10 Rivers at Risk", the group said many rivers could dry out. affecting hundreds of millions of people and killing unique aquatic (水生的) life.

    "If these rivers die, millions will lose their livelihoods, biodiversity (生物多样性) will be destroyed on a massive scale, there will be less fresh water and agriculture, resulting in less food security, "said. Rayi Singh, secretary—general of WWF—India. The report, launched ahead of "World Water Day" today, also cited the Rio Grande in. the United States, the Mekong and Indus in Asia, Europe's Danube, La Plata in South America and Australia's Murray—Darling as in need of greater protection.

    Rivers are the world's main source of fresh water and WWF says about half of the available supply is already being used up. Dams have destroyed habitats and cut rivers off from their flood plains, while climate change could affect the seasonal water flows that feed them, the report said. Fish populations, the top source of protein and overall life support for hundreds of thousands of communities worldwide, are also being threatened, it found. The Yangtze basin is one of the most polluted rivers in the world because of decades of heavy industrialization, damming and huge influxes (流入) of sediment (积淀) from land conversion.

    Climate change, including higher temperatures, also means serious consequences for fishery productivity, water supply and political security in Africa's arid Nile basin. Tributaries (支流) flowing into the Ganges are drying up because of irrigation, WWF said.

    The TED speaker series features "ideas worth spreading". With over 1,400 to choose from, we've selected a few that are perfect for students.

    ⒈Larry Smith: Why you will fail to have a great career

We humans may have an unfavorable habit of making excuses for ourselves or being too confident about ourselves. Accordingly, Larry Smith, a professor of economics at the University of Waterloo in Canada, tells us why most of us will fail to have a great career. Luckily, as he puts it, there is a way out—follow your heart, as long as it is good for your career.

    ⒉Andy Puddicombe: All it takes is 10 mindful minutes

Between dance team, volunteering and –oh, right—lectures, your life's crazy factor(因素)is about to go way up. In this entertaining and informative talk, Mindfulness, expert Andy Puddicombe teaches us how to be "more healthy, more mindful and less distracted" by taking just 10 minutes out of the day to be "more present".

    ⒊Shane Koyczan: To this day…for the bullied(欺凌)and beautiful

    This talk is sure to stay with you. Shane Koyczan's "To This Day" is an affecting spoken-word poem about bullying and being different that gained over 10 million views on YouTube. In this talk, Koyczan gives a live reading of the poem, along with some stories about his background.

    ⒋Susan Cain: The power of introverts(性格内向者)

    Does a cup of tea and a good book sound like a perfect Friday night? In this personal talk, Susan Cain argues that introverts have talents and abilities. Our culture may value being outgoing, but the world needs all kinds.