Looking good can matter a lot when you are a teenager. Of course the budget(财政） matters a lot, too. Luckily, fashion trends (流行趋势) in the UK mean that getting the right image doesn't have to cost the earth. Here's a quick guide to which looks are hot this year.

    For girls, the 70s are back. Wide-legged jeans, platform shoes and skirts that reach the feet are again in fashion among UK teens, topped off with colored, shining eyeshadow. Girls can have fun mixing and matching bright shades. Colors like pink, orange and light yellow-green are all perfectly fit. Shorts and mini-skirts are still popular in cold weather. By wearing a pair of tights underneath ( 在..底下), girls can stay warm as well as fashionable in the winter.

    How about boys? To look lively, fans of skateboards and snowboards can dress in skinny jeans accompanied by a T-shirt topped off with a baseball cap or a woolen hat. Music is often an inspiration for fashion, and hip-hop music fans like to dress in baggy jeans, T-shirts, baseball caps and sneakers. For those who can afford it, designer clothing is a must, especially if the logo is showing.

    Henri Cartier-Bresson (1908-2004) is one of the most original and influential figures in the history of photography. His photographs helped establish photojournalism as an art form.

    Henri's family was wealthy—his father made a fortune as a textile manufacturer—but Henri later joked that due to his parents' economical ways, it often seemed as though his family was poor.

    Educated in Paris, Henri developed an early love for literature and arts. As a teenager, Henri was against his parents' formal ways of education. In his early adulthood, he fell in love with several appetites, but it was art that remained at the center of his life.

    Henri traveled to Africa in 1931 to hunt antelope and boar. And Africa fueled another interest in him: photography. He then wandered around the world with his camera, using a handheld camera to catch images from fleeting moments of everyday life.

    Not long after World War Ⅱ, Henri traveled east, spending considerable time in India, where he met and photographed Gandhi shortly before he was killed in 1948. Henri's work to document Gandhi's death and its immediate effect on the country became one of Life Magazine's most prized photo essays.

    Henri's approach to photography remained much the same throughout his life. He made clear his dislike of images that had been improved by artificial light, darkroom effects, and even cutting. The naturalist in Henri believed that all editing should be done when the photo is taken. In 1952, his first book, The Decisive Moment, a rich collection of his work spanning two decades, was published. "There is nothing in this world that does not have a decisive moment," he said.

    In 1968, he began to turn away from photography and returned to his passion for drawing and painting.

    Indian-origin Anvitha Vijay has given a new meaning to the phrase “age is just a number”; she has proved that achievements and knowledge follow passion and not just age and experience.

    Vijay, who lives with her parents in Melbourne, Australia, at the age of seven realized that her piggy bank did not have enough money to hire a developer to make her an app, so she decided to teach herself how to code. With the help of YouTube videos, the young techie learned to code. For one entire year, she watched multiple coding tutorials on the web and became a programmer herself.

    Vijay's inspiration for developing the apps was her little sister, who was still learning to talk. Therefore, Vijay developed an educational app for children that were her sister's age. The app is called Smartkins, which uses about 100 sounds and flashcards of different animals that help children learn and identify. Later, Vijay developed a similar iOS app for children to identify and learn colors. Each app has been downloaded thousands of times.

    Anvitha's skills won her a scholarship to attend a big tech conference hosted by Apple in San Francisco, California. There, she got tips from the pros. She went to workshops where she learned about the latest software for app building.

    All that training led to an idea for a third app. This one, called GoalsHi, inspires kids to practice good habits. Users are rewarded for achieving goals, such as eating their vegetables or practicing piano. Anvitha says the rewards are like getting a sticker for a job well done.

    Anvitha's goal is to continue creating technology that helps kids learn while having fun. But even more important to her is that the world sees the power of technology in kids' hands. “The more training we get in tech at an early age,” she says, “the better chance we have of becoming creativity champions who will one day change the world.”

    The possibility of self-driving robot cars has often seemed like a futurist's dream, years away from coming into reality in the real world. Well, the future is apparently now. The California Department of Motor Vehicles began giving permits in April for companies to test truly self-driving cars on public roads. The state also cleared the way for companies to sell or rent out self-driving cars, and for companies to operate driverless taxi services. California, it should be noted, isn't leading the way here. Companies have been testing their cars in cities across the country. It's hard to predict when driverless cars will be everywhere on our roads. But however long it takes, the technology may change our transportation systems and our cities, for better or for worse, depending on how the transformation is managed.

    While much of the debate so far has been focused on the safety of driverless cars, policymakers should be talking more about how self-driving cars can help reduce traffic jams, cut emissions(排放)and offer more convenient and affordable choices to move around. The arrival of driverless cars is a chance to make sure that those cars are environmentally friendly and more shared.

    Do we want to copy or even worsen the traffic of today with driverless cars? Imagine a future where most adults own their self-driving cars. They accept long, slow journeys to and from work on crowded highways because they can work, entertain themselves or sleep on the ride. They take their driverless car to a date and set the empty car to circle the building to avoid paying for parking. Instead of walking a few blocks to pick up a child or the dry cleaning, they send the self-driving minibus. The convenience even leads fewer people to take public transport — an unwelcome side effect researchers have already found in ride-hailing(网约车)services. Policymakers should start thinking now about how to make sure the appearance of driverless cars doesn't worsen the transportation system we have today. The coming technological development presents a chance for cities and states to develop transportation systems designed to move more people, and more affordably. The car of the future is coming. We just have to plan for it.

    With the development of our society, cell phones have become a common part in our lives. Have you ever run into a careless cell phone user on the street? Maybe they were busy talking, texting or checking updates on WeChat without looking at what was going on around them. As the number of this new "species" of human has kept rising, they have been given a new name—phubbers (低头族).

    Recently a cartoon created by students from China Central Academy of Fine Arts put this group of people under the spotlight. In the short film, phubbers with various social identities bury themselves in their phones. A doctor plays with his cell phone while letting his patient die, a pretty woman takes a selfie (自拍) in front of a car accident site, and a father loses his child without knowing about it while using his mobile phone. A chain of similar events finally leads to the destruction(毁灭) of the world.

    Although the ending of the film sounds unrealistic, the damage phubbing can bring is real. Your health is the first to bear the effect and result of it. "Always bending your head to check your cell phone could damage your neck," Guangming Daily quoted doctors' words. "The neck is like a rope that breaks after long-term stretching." Also, staring at cell phones for a long time will damage your eyesight gradually, according to the report.

    But that's not all. Being a phubber could also damage your social skills and drive you away from your friends and family. When getting together with family or friends, many people prefer to play their cell phones while others are chatting happily with each other and this creates a strange atmosphere, Qilu Evening News reported.

    It can also cost your life. There have been lots of reports on phubbers who fell to their death, suffered accidents, and were robbed of their cell phones in broad daylight.

    Barbara McClintock was one of the most important scientists of the twentieth century. She made important discoveries about genes and chromosomes (染色体).

    Barbara McClintock was born in 1902 in Hartford, Connecticut. Her family moved to the Brooklyn area of New York City in 1908. Barbara was an active child with interests in sports and music. She also developed an interest in science.

    She studied science at Cornell University in Ithaca, New York. Barbara was among a small number of undergraduate students to receive training in genetics in 1921. Years later, she noted that few college students wanted to study genetics.

    Barbara McClintock decided to study botany, the scientific study of plants, at Cornell University. She completed her undergraduate studies in 1923. McClintock decided to continue her education at Cornell. She completed a master's degree in 1925. Two years later, she finished all her requirements for a doctorate degree.

    McClintock stayed at Cornell after she completed her education. She taught students botany. The 1930s were not a good time to be a young scientist in the United States. The country was in the middle of the great economic Depression. Millions of Americans were unemployed. Male scientists were offered jobs. But female geneticists were not much in demand.

    An old friend from Cornell, Marcus Rhoades, invited McClintock to spend the summer of 1941 working at the Cold Spring Harbor Laboratory. It is a research center on Long Island, near New York City. McClintock started in a temporary job with the genetics department. A short time later, she accepted a permanent position with the laboratory. This gave her the freedom to continue her research without having to teach or repeatedly ask for financial aid.

    By the 1970s, her discoveries had had an effect on everything from genetic engineering to cancer research. McClintock won the Nobel Prize for Physiology or Medicine in 1983 for her discovery of the ability of genes to change positions on chromosomes. She was the first American woman to win an unshared Nobel Prize.