You're rushing to work and a man ahead of you falls down on the sidewalk. Do you stop to help? In a study of by-standers, it was found that some people keep on walking.

    "There is a tendency to decide that no action is needed," says a psychologist, "In order to take action, you have to work against them." Here are some common thoughts that stop you from helping.

    ●Why should I be the one? I'm probably not the most able person in this crowd. You might think someone older or with more medical knowledge should offer assistance.

    ●What if he doesn't really need my help? The fear of embarrassment is powerful; no one wants to risk looking foolish in front of others.

    ●No one else looks concerned. We can follow the people around us, but most people tend to hold back their emotions in public.

    "If you spot trouble and find yourself explaining inaction, force yourself to stop and evaluate the situation instead of walking on," says the psychologist. "Then retry to involve other people; you don't have to take on the entire responsibility of being helpful. Sometimes it's just a matter of turning to the person next to you and saying, 'It looks like we should do something.' Or asking someone if an ambulance has been called and, if not, to call for one. Once you take action, most people will follow you."

    When Johnnie Martin was in the second grade in high school, one day a psychologist of the school called him into his office.

    “Johnnie, I've made a very careful study of you. And I feel sorry to have to tell you… Though you have worked very hard, it has not helped. You're just not fit for it.”

    The boy buried his face in his hands, “This will be hard on my parents,” he said. “Their one idea is for me to be a college man.”

    The psychologist laid his hand on the boy's shoulder and said, “People have different kinds of talents. Some day you will find what your special gift is and when you do, you will make your parents very proud of you.”

    Johnnie never went back to school. Jobs were scarce in town, but he managed to keep busy mowing the lawns of the householders and puttering in their flowerbeds. Before long he discovered he had an eye for color.

    One day while he was downtown, he happened to notice a stretch of unused land behind the city hall. Chance or fate or whatever you may like to call it brought one of the town's aldermen（市政委员会委员）round the corner just at that moment. The boy said, “I can make a garden out of this dump, if you'll let me do it.”

    “The town's got no money for it,” said the alderman.

    “I don't want any money for it,” said the boy. “I just want to do it.”

    The alderman was shocked to find someone who did not want money. He took Johnnie into an office, and when the young man came out he had the authority to clean up the public eyesore. Before long the old dump became a little beautiful park.

    It was also a kind of show window for Johnnie. People saw the result of his skill and knew him as a natural landscape gardener.

    That was twenty-five years ago. Today Johnnie is the head of a successful business in landscape gardening. His aging parents are proud of Johnnie, for he is not only a success, but he has also made his part of the world a lovelier place to live in.

    Are you looking for something to do? You might like to try one of these four experiences.

    Crocodile watching

    Do you fancy getting up close to some of the most terrifying animals on earth? Crocosaurus Cove, in Darwin (Australia) has the “Cage of Death”. It's an enclosure that's lowered into a pool. This gives you a 360 degree view of a crocodile as it's being fed. The cable broke once and the cage sank to the bottom, but they've fixed it since then.

    Edge walk

    How about walking along the edge of a building several hundred meters up in the air? If that sounds like fun, head off to the CN Tower in Toronto (Ontario, Canada). Built in 1976, the tower is 553.33 meters tall.

    The Edge walk consists of a 20-30 minute stroll along a 1.5 meter wide platform that runs around the tower's restaurant roof. During the walk, you're encouraged to lean forwards as you look over Toronto's skyline (轮廓线).

    Plastic ball rolling

    Do you fancy rolling down a hill in a plastic ball?

    Plastic ball rolling is popular all over the world, but the place to give it a go is in Rotorua (New Zealand). Brother David and Andrew Akers came up with the idea in 1994. A typical orb(球) is about 3 meters in diameter, with an inner orb size of about 2 meters. There's no brake or steering mechanism, but the inner layer of the plastic ball helps absorb the shock.

    Volcano bungee jumping

    If you're looking for the adventure of a lifetime, how about going bungee jumping off a helicopter into the crater of a live volcano? As part of the jumping, a helicopter ride takes you to the Villarreal volcano, one of the most active in Chile. Once you're at the drop zone, you leap off the helicopter and fall into the volcano. Finally, you enjoy the ride back to the airport flying at 130kph.

    Attracted by the above? If so, please contact us. Only half price from March 22 to April 25th For more information, please click here.

    A team of researchers at the University of Illinois at Chicago found that too many kids are eating too much pizza and too many calories are doing harm to children's health.

    "There are a lot of takeaways from the study. But the biggest thing is that parents are serving their kids too much pizza," said Dr. William Dietz, one of the study's authors and the director of the Sumner M. Redstone Global Center for Prevention and Wellness at the Milken Institute of Public Health at the George Washington University.

    The researchers used data from the National Health and Nutrition Examination Survey, which tracked the diets of more than 11,000 children and teenagers. Researchers figured how many children eat pizza in the United States, how often they eat it, and how much they eat when they do.

    Pizza, pretty alarmingly, is the second leading source of calories in the diets of America's children, next only to grain desserts, such as cookies and other sweets. On any given day, roughly 20 percent of all children aged 2 to 11 and adolescents aged 12 to 19 eat pizza. And when they do, they eat a lot of it. When children eat pizza, they eat roughly 400 calories, according to the study. For teenagers, it's upwards of 600 calories.

    All that is pretty problematic, according to Dietz largely because kids don't tend to balance the pizza slices with salads, vegetables and other more nutritional(有营养的) foodstuffs. Days on which children and teenagers eat pizza are not only associated with considerably higher intakes of fat, but also, quite simply, with more food: on average, children consume 84 extra calories on the days they eat pizza, while adolescents consume an extra 230 calories.

    "When you eat extra calories and don't compensate(抵偿) for them at another point of the day or week, it can lead to weight gain and even obesity." Dietz said.

    There is a Silver lining. Pizza consumption is still too high by nutrition standards, but it's lower than it used to be. Consumption(消费) fell by roughly 25 percent between 2007 and 2016, according to the study. Much of that has come at dinner where it's fallen by 40 percent for children and about 33 percent for teenagers. It's unclear whether the decline has been in connection with a growing concern over obesity, especially among the country's youth.

    But the drop in pizza consumption, while significant hasn't been big enough "It's a positive trend," Dietz said. "But we're not quite them yet."

    It's easy to see the appeal of pizza. It's cheap. Parents can buy a lot of pizza for not a lot of money. Besides, they can buy pizza from a chain shop, a mom-and-pop store or a grocery freezer. And it's universally loved. The estimated 3 billion pizza eaten each year in the United States is a proof of the food's unmatched popularity. Given how much the country loves pizza, what's to be done? Dietz suggests pizza with smaller serving sizes and healthier toppings(配料). "We're not suggesting that kids avoid pizza altogether." said Dietz. "But when parents serve it, it's important that they understand it's extremely caloric. They should serve smaller pizza, or at least smaller slices."

    They were a happy family: four daughters all in the same school in different grades. The youngest, Janice, who was in my class, seemed to be glued (粘) to her mother's skirts. The three older girls took the bus to school every morning, but Janice was always driven to school by her mother.

    One Friday, Janice's mother asked for a talk with me. She said in a soft voice, "My husband is going to Europe on business for two weeks, and he insists that I go with him. I have tried to explain over and over that Janice needs me here. But he thinks that she will be fine without me so I have no choice; I have to go. I have told the babysitter to drive her every morning. Will you please give Janice special attention and help her? I want to be sure everything goes well for her."

    I told her that we would make every effort to support Janice. I even volunteered to meet Janice at her car so she would see a familiar face. As a mother myself, I'd like to help. Janice's mother thanked me for our understanding.

    On Monday morning, expecting a tearful, anxious child, I planned a special program of fun and games. I waited outside to greet Janice, but just then the bus arrived and not three, but four girls got off. Janice skipped along joyfully, saying "goodbye" to her sisters as she ran with two friends into the classroom. I walked slowly into the classroom and called Janice over to ask how the bus ride went. Impatiently she said, "Oh, I always want to take the bus with the other kids, but Mother needs to be with me. You see there won't be any more babies, so I have to be a baby a little longer. While she is away, I'll just ride the bus every day. I am five, you know."

    With the Chinese language growing in popularity, the UK government plans to invest (投资)10 million pounds to help more kids learn Mandarin(普通话).Do you think it is necessary for the UK pupils to learn Mandarin? Some people share their opinions online.

    Tsd(UK):The learning of any language can be valuable and rewarding, but it is not suitable for everyone. Chinese is a difficult language to learn and the UK has a poor reputation for teaching foreign languages. Why should they learn Chinese when most people in the world speak English?

    Mark(US):I studied French for 2 years in high school and German for 4 years in college. I studied Mandarin informally for about 4 months before moving to China. Now I speak Mandarin every day as my wife doesn't speak English. But it is far from being fluent, learning additional languages is a great thing, which offers a different perspective on the world around us. Nowadays, it's almost necessary to be able to speak more than just your native tongue.

George(UK):No, unless they're taught from a very early stage of childhood. Mandarin is so difficult. If China really is going to dominate the world, it'll have to do so by speaking the world's dominant language—English.

    Sam(UK):I don't think Chinese will become as widely spoken throughout the world as English. It is too difficult to learn as a second language. To learn Chinese you completely have to devote yourself to learning how to write and read it. If you have to learn it besides other subjects you can't be good at it. But Chinese will become more popular, and that is a good thing.