There are countless short videos on YouTube. It's a website for people to post video made by themselves. Many people make a lot of money through doing so. Then, who made the most over the past year?

    YouTube's top-earning celebrity is a 25-year-old video-game-playing young man who shows a strong sense of humor in his videos. He earned $12 million over the past year. Forbes magazine says Sweden's Felix Kjellberg, better known by his handle "PewDiePie", tops its first list of people who have turned short videos into huge piles of cash.

    YouTube stars make money mainly by getting paid to interact with products on their channels and sharing ad revenue(收入) with YouTube. Some also star in movies, write books, go on tour, or sell music. They're a hit with younger audiences and brands trying to reach the next generation of consumers.

    Two acts tied for the second place on Forbes' list, both earning $8.5 million: comedy prankster(搞恶作剧的人) duo Smosh(Ian Hecox and Anthony Padilla) and the Fine Brothers(Benny and Rafi Fine). Dancing violinist Lindsey Stirling ranked fourth with $6 million. Tied for fifth were comedians Rhett and Link(made of Rhett McLaughlin and Charles Lincoln III) and video game commentators(解说员) Olajide Olatunji, known as "KSI," with $4.5 million. Make-up artist Michelle Phan was seventh at $3 million. The No. 8 place was a three-way tie at $2.5 million shared by comedian Lilly Singh, or "Superwoman;" prankster Roman Atwood; and chef Rosanna Pansino.

    Forbes is best known for its list of billionaires and this list marks its first attempt at ranking YouTube stars. It says it measured earnings before management fees and taxes and came up with the figures based on data from online sources such as Nielsen, IMDb and interviews with managers, lawyers, industry insiders and the stars themselves.

    Icelanders have a beautiful tradition of giving books to each other on Christmas Eve and then spending the night reading. This custom is so deeply rooted in the culture that it is the reason for Christmas Book Flood, when the majority of books in Iceland are sold between September and December in preparation for Christmas giving.

    “Books get attention here.” says Baldur Bjarnason, a researcher who has written about the Icelandic book industry.

    The small Nordic island, with a population of only 329,000 people, is extraordinarily literary（文学的）. They love to read and write. According to a BBC article, “The country has more writers, more books published and more books read, per head, than anywhere else in the world... One in 10 Icelanders will publish a book.”

    It seems there is more value placed on physical, paper books than in North America, where e-books have grown in popularity. One bookstore manager said, “The book in Iceland is such an enormous gift —you give a physical book. You don't give e-books here” The book industry is driven by the majority of people buying several books each year, rather than the North American pattern of a few people buying lots of books.

    It sounds like a wonderful tradition, perfect for a winter evening. It is something that I would love to incorporate（吸收）into my own family's celebration of Christmas.

    In the world, football is the most popular sport. This is because many countries have wonderful teams for the World Cup. The World Cup is held every four years.

    To remember 2002 FIFA World Cup ,children from different countries and more than 60 children from Japanese schools came together and spent three weekends drawing a big picture called “Dream(梦幻) World Cups ”in Japan .The children drew animals, flowers and people playing football under a blue bright sky. They wished each football team good luck by drawing the flags(旗帜)of all the countries that will take part in the World Cup in Japan and South Korea. The picture was put up in a park near a playground in Yokohama .Some football teams will have games there.

    Are you a football fan(迷)？The World Cup makes more and more people interested in football. Teenagers(青少年)like playing and watching football .Many of them love some football stars so much that they get the pictures of their favorite players on the walls of their rooms. That is the way to show their love for the World Cup as children in Japan.

    With only about 1,000 pandas left in the world, China is desperately trying to clone (克隆) the animal and save the endangered species (物种). That's a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called "Noah's Ark".

    Noah's Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A& M's College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.

    It is estimated that as many as 2,000 species of mammals, birds reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.

    This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.

    The entire procedure could take from three to five years to complete.

    "The nuclear transfer (核子移植) of one species to another is not easy, and the lack of available (capable of being used) panda eggs could be a major problem," Kraemer believes. "They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and ifs difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort, adds Kraemer, who is one of the leaders of the Project at Texas A& M, the first-ever attempt at cloning a dog.

    "They are trying to do something that's never been done, and this is very similar to our work in Noah's Ark. We're both trying to save animals that face extinction. I certainly appreciate their effort and there's a lot we can learn from what they are attempting to do. It's a research that is very much needed."

    You discover a shampoo that leaves your hair looking beautiful. But gradually, as you use it more, it's magical effects seem to disappear. "It's just your hair getting used to it, "your mom says. And so you put the shampoo away and look for your next wonder product.

    It sort of makes sense -why would something that left you looking nice at first suddenly start losing its effect after some time? Are there some other factors(因素)at play? Can your hair really get used to a certain shampoo?

    Marie Claire spoke to hair experts and it turns out that it's not true. Your hair cannot get so used to a product that it just stops working.

    So what is the deal? Cynthia Alvarez, a famous hair stylist, explained that there are a number of factors leading to your hair puzzle, but basically, it's not the shampoo. "A shampoo does not stop working because your hair get used to it, she said." If your shampoo stops giving you the results you want, the condition and needs of your hair have most likely changed, or the season may have changed -it's more humid(in $), the sun is stronger, or the air is drier. Your state of health may also be different from a recent illness.

    In other words, you need to give up blaming the shampoo. So what can you do to make your hair look beautiful for a little longer? Alvarez suggests changing your ways of hair care when factors, such as the weather, change. Experts also suggest keeping an eye on the amount of shampoo and conditioner(H%i )you're using because over conditioning can be bad for your hair.

When it comes to having fun in the sun, it's easy to lose track of time. If you're not careful, this can be quite dangerous.{#blank#}1{#/blank#}But it can easily be prevented—all you need is a little sunscreen.

{#blank#}2{#/blank#}People have been using chemical pastes to protect themselves from the sun for centuries. But the first modern sunscreen sold on the market was offered by French company: L'oreal in 1935.

Several other companies were quick to release their own sunscreens. Perhaps the biggest advancement in the world of sunscreen came in the 1970s, when scientists started looking at the sun protection factor, or SPF.{#blank#}3{#/blank#}

The advantages of using sunscreen are obvious. It limits the painful effects of sunburn.{#blank#}4{#/blank#}Millions of people have died from skin cancer caused by ultraviolet rays from the SUITL. Remember to apply sunscreen 30 minutes before going outside.

Unfortunately, there are many mistaken ideas about sunscreen.{#blank#}5{#/blank#}Some also think you only need to put it on once for a whole day's protection or that you don't need it on cloudy days. None of these things are true. Experts say you should apply sunscreen every two hours when outside in the daytime, no matter how dark your skin is or what the weather is like.

A. And it can even save your life.

B. Sunscreen is not exactly a recent invention.

C. Choosing a sunscreen isn't as simple as it used to be.

D. In direct sunlight, sunburn can occur in less than 15 minutes.

E. This rating is a number that shows how effective a sunscreen is.

F. It's believed that you don't need much sunscreen if you have dark skin.

G. Some think a good method is to cover as much as possible with protective clothing.