After giving a talk at a high school,I was asked to pay a visit to a special student.An illness had kept the boy home,but he had expressed an interest in meeting me.I was told it would mean a great deal to him,so I agreed.

    During the nine-mile drive to his home,I found out something about Matthew.He had muscular dystrophy（肌肉萎缩症）.When he was born,the doctor told his parents that he would not live to five,and then they were told he would not make it to ten.Now he was thirteen.He wanted to meet me because I was a Gold-medal power lifter,and I knew about overcoming obstacles and going for my dreams.

    I spent over an hour talking to Matthew.Never once did he complain or ask,"Why me?"He spoke about winning and succeeding and going for his dreams.Obviously,he knew what he was talking about.He didn't mention that his classmates had made fun of him because he was different.He just talked about his hopes for the future,and how one day he wanted to lift weights with me.When we had finished talking,I went to my briefcase（公文包）and pulled out the first gold medal I had won and put it around his neck.I told him he was more of a winner and knew more about success and overcoming obstacles than I ever would.He looked at it for a moment,then took it off and handed it back to me.He said,"You are a champion.You earned that medal.Someday when I get to the Olympics and win my own medal,I will show it to you."

    Last summer I received a letter from Matthew's parents telling me that Matthew had passed away.They wanted me to have a letter he had written to me a few days before:

Dear Dick,

    My mum said I should send you a thank-you letter for the picture you sent me.I also want to let you know that the doctors tell me that I don't have long to live any more,but I still smile as much as I can.I told you someday that I would go to the Olympics and win a gold medal,but I know now I will never get to do that.However,I know I'm a champion,and God knows that too.When I get to Heaven,God will give me my medal and when you get there,I will show it to you.Thank you for loving me.

Your friend,

Matthew

    As more and more people speak the global languages of English, Chinese, Spanish, and Arabic, other languages are rapidly disappearing. In fact, half of the 6，000～7，000 languages spoken around the world today will likely die out by the next century, according to the United Nations Educational, Scientific, and Cultural Organization (UNESCO).

    In an effort to prevent language loss, scholars from a number of organizations—UNESCO and National Geographic among them—have for many years been documenting dying languages and the cultures they reflect.

    Mark Turin, a scientist at the Macmillan Centre, Yale University, who specializes in the languages and  oral traditions of the Himalayas, is following in that tradition. His recently published book, AGrammarofThangmiwithanEthnolinguisticIntroductiontotheSpeakersandTheirCulture, grows out of his experience living, working, and raising a family in a village in Nepal.

    Documenting the Thangmi language and culture is just a starting point for Turin, who seeks to include other languages and oral traditions across the Himalayan reaches of India, Nepal, Bhutan, and China. But he is not content to simply record these voices before they disappear without record.

    At the University of Cambridge Turin discovered a wealth of important materials—including photographs, films, tape recordings, and field notes—which had remained unstudied and were badly in need of care and protection.

    Now, through the two organizations that he has founded —the Digital Himalaya Project and the World Oral Literature Project—Turin has started a campaign to make such documents, found in libraries and stores around the world, available not just to scholars but to the younger generations of communities from whom the materials were originally collected. Thanks to digital technology and the widely available Internet, Turin notes, the endangered languages can be saved and reconnected with speech communities.

    Imagine being a crew member, hundreds of years ago, sailing in southern waters. Your captain is searching for food while exploring unfamiliar waters. Your job is to watch the sea off the ship's side for ice. The wind is cold on your face. Alongside the ship, a fish darts past. Another slows to a stop and raises its head above the water to look at you. How could a fish do that?

    Did the sailors see fish with feathers or swimming birds? Today, we know that the sailors saw birds that developed the ability to swim. Their wings became flippers, and they could “fly” through the water with amazing speed.

    There are many types of penguins. Only two kinds raise their young on the continent of Antarctic. Adelie penguins grow up to 29 inches tall and have a white ring around each eye. Emperor penguins have yellow orange color near their necks. Standing about 35 inches tall, they are the tallest penguins living today.

    Emperor penguins have nests on top of their feet. Father Emperor penguins keep the egg on top of their feet for more than two months, until the egg is ready to hatch. The mother penguin goes out for food during that time. Imagine holding an egg on your feet for two months until someone returns with food!

    Male and female penguins are both good parents. Once the chicks hatch, both parents travel long distances to find food for them in the sea. It may be days before the parents return and the chicks eat again. When they return with food, the fun really begins. Chicks chase their parents, begging for food. Penguin chicks eat huge amounts at one time.

    Eventually, the adult penguins stop feeding the chicks. This is nature's way of forcing children to grow up. When the penguin chicks are hungry enough, they find their way to the sea. Without any swimming lessons, they make their way into the icy waters and swim as only penguins do.

    There are many places to go on safari（观赏野生动物）in Africa, but riding a horse through the flooded waters of Botswana's Okavango Delta must rank as one of the world's most exciting wildlife journeys.

    Several safari camps operate as the base for this adventure, providing unique rides twice a day to explore deep into the delta. The camps have excellent horses, professional guides and lots of support workers. They have a reputation for providing a great riding experience.

    The morning ride, when the guides take you to beautiful, shallow lakes full of water lilies, tends to be more active. It is unlike any other riding experience. With rainbows forming in the splashing water around you and the sound of huge drops of water bouncing off your body and face. It is truly exciting. You are very likely to come across large wild animals, too. On horseback it is possible to get quite close to elephants, giraffes and many other animals. The sense of excitement and tension levels rise suddenly though, as does your heart rate, as you move closer to them.

    In the evening, rides are usually at a more relaxed and unhurried pace. With golden light streaming across the grassy delta and the animals coming out to eat and drink____though they are, rides at this time of day are still very impressive. As the sun's rays pass through the dust kicked up by the horses, the romance of Africa comes to life.

    Back at the camp you can kick off your boots and enjoy excellent food and wine. Looking back on your day, you will find it hard to deny that a horseback Safari is as close as you will ever come to answering the call of the wild.

    The discussion on renewable energy has been going on for at least a decade and people have relied on fossil fuels almost entirely for more than a century. However, the situation when fossil fuels were the most efficient and the cheapest source of energy has been left far in the past. Many countries such as Germany and Sweden have already made significant efforts to fix this situation, employing numerous power plants working on the renewable resources of energy. The most effective among these resources is geothermal（地热的）energy.

    Geothermal energy does not depend on the world's economic and political situation as strongly as fossil fuels do. Besides, extracting（提炼）fossil fuels adds to the price of energy produced from them. Therefore, geothermal energy is much cheaper than traditional ones, saving up to 80% of the costs over fossil fuels.

    Being a renewable resource, geothermal energy produces less waste and pollution than traditional energy sources. In geothermal systems, carbon dioxide makes up about 10% of air produced. Overall, in order to produce the electricity that can be used for one hour, the geothermal systems produce 0.1 pound of carbon dioxide and other harmful gases. For a comparison, a power plant producing from gas produces up to 2 pounds of carbon dioxide into the atmosphere, and those power plants that work on coal（煤）produce an astonishing 3.6 pounds of greenhouse gases.

    Low costs is another reason why using geothermal power plants should be the first choice for many countries. Geothermal heat systems require 25% to 50% less energy for work compared with the traditional systems for heating or cooling. Besides, geothermal equipment is less big: due to the very nature of geothermal energy, geothermal power plants have only a few moving parts, all of which can be easily sheltered inside a relatively small building. What's more, the life span of geothermal equipment is rather long. All these make geothermal power stations easy to build and keep.

    Plan your dream vacation to one of these excellent destinations.

    St. Lucia

    Abundant（丰富的） rainforests and splendid mountains are all reasons to visit this Caribbean island. St. Lucia offers the perfect mix of relaxation and adventure. To take in the breathtaking scenery, plan to hike the Piton Mountains or dive in the waters of Anse Chastanet.

    Banff. Alberta

    This Canadian destination will bring out the explorer in anyone who visits. From hiking and whitewater rafting to skiing and snowboarding, Banff offers travelers an abundance of year-round outdoor activities. The Lake Louise Ski Resort is one of the largest in North America and the striking photo opportunities of the Canadian Rockies from Moraine Lake can't be underestimated (低估).

    Machu Picchu

    According to travelers, a visit to this Peruvian UNESCO World Heritage (遗产) site is a once-in-a-lifetime adventure. Located in the Andes Mountains, it is the most familiar icon (象征物) of Inca civilization. Spend a few days accustoming yourself to the altitude in the neighboring city of Cusco, where you can experience a mix of Incan and Spanish cultures.

    Great Barrier Reef

    It's easy to see why the Great Barrier Reef is one of the Seven Natural Wonders of the World – it stretches nearly 1,500 miles along the eastern coastline of Australia and features about 3,000 reefs, 900 islands and more than 1,500 species of fish. Travelers can see these amazing natural structures from the air or underwater. However, large amounts of coral bleaching (褪色) caused by rising ocean temperatures put this place's continued existence at risk, so plan your visit soon to see this awesome sight up close.