The Pew Internet Project did the survey with the National Writing Project. Judy Buchanan is the vice director of the National Writing Project and a co-author of the report. Ms. Buchanan says digital research tools are helping students learn more and faster. “Teachers really favor these tools because they are ways to make some of the learning exciting and engaging. Young people favor these tools. The goal is to really help them become creators of meaningful content, and not just sort of consumers.”

    But one problem the survey found is that many students lack digital literacy. They trust too much of the information they find on the Internet. Judy says these students haven't developed the skills to determine the quality of online information.“It's something that really has to be taught and paid attention to. Because in a world in which things happen quickly, you do need to step back, reflect and analyze the information you have.”

    Another problem is blamed on something that might not seem like a problem at all: being able to quickly find information online. Teachers say the result is a reduction in the desire and ability of their students to work hard to find answers. They say students are overly dependent on search engines and do not make enough use of printed books or research libraries.

    Many teachers are also concerned that the Internet makes it easy for students to copy work done by others instead of using their own abilities.

    Watching a 3D movie can more than double the concentration powers and the cognitive（认知的）process of children,new re-search claims.

    A study by visual technology firm Read and led by child psychologist Dr Richard Woolfson and associate lecturer at Goldsmiths Patrick Fagan suggests that children aged between 7 and 14 experienced twice the cognitive processing speed and performed better in tests after watching 20 minutes of a 3D film.

    This suggests that children's attention spans have shortened in the last decade due to unlimited access to entertainment,including on-demand TV,gaming and social media.

    A 2015 study claimed that watching 3D content had a similar effect to brain-training exercises.

    Consumer psychologist Mr Fagan said that the increased stimulation found in watching something in 3D "exercised" the brain and improved performance in the short term.

    3D films can play the role of brain-training "games and help to make children 'smarter' in the short term," he said. "The response speed after watching 3D was almost three times as quick as that gained from watching 2D; in other words,3D helps children process aspects of their environment more quickly.This is likely because 3D is a mentally exciting experience which 'gets the brain's juices flowing'."

    Perhaps no one knows the power of imagination better than Chinese writer Liu Cixin. Until four years ago, Liu worked full-time as a computer engineer at a power plant in Shanxi province. He only wrote science fiction in his spare time. But it was during this time that Liu's imagination took flight. He did what he might never have the chance to do in real life – wander in space, fight with aliens, and visit planets light-years away.

    But even with such a powerful imagination, Liu, 55, probably hadn't expected that he would become the first Asian to win the Hugo Award, science fiction's highest prize, in 2015. Perhaps neither did he think that former US president Barack Obama would read his novel The Three-Body Problem, nor that on Nov 9 in Washington DC, he would win the 2018 Arthur C. Clarke Award for Imagination in Service to Society. It's the first time a Chinese writer has ever won the award.

    In his acceptance speech, Liu said that he owed his imagination to Arthur C. Clarke (1917-2008), a famous UK sci-fi author. He said that reading Clarke's 1968 classic novel 2001: A Space Odyssey in the early 1980s had a great effect on him.

    “My mind opened up like never before. I felt like a narrow river finally seeing the sea,” Liu said. “That night, in my eyes, the starry sky was completely different from the past. For the first time in my life, I was awed (使……敬畏) by the mystery of the universe.”

    But no matter how far away Liu's imagination takes him, somehow his novels always stay rational.

    In The Three-Body Problem, for example, Liu tells a tale of aliens invading Earth. But unlike other alien stories, Liu talks more about relationships between civilizations(文明), rules of survival, and the meanings of life. And in The Wandering Earth, Liu looks ahead to the day when our solar system comes to an end and humans have to look for a new place to live. However, all his visions and solutions are based on “hard science”. Liu's works aren't simply daydreams.

    Have you ever realized that the smallest countries in the world have so much to offer? Whether it's historic and cultural heritage or unspoiled nature, these microstates are worth a visit.

    Grenada

    Grenada is a small country in the world. It is located on island of Caribbean, which is also known as The Island of Spice for several spices like cinnamon, ginger and rare nutmeg. Grenada relies on tourism. Its pristine beaches, warm turquoise water and unspoiled nature make it a wonderful holiday destination. Recently ecotourism has been growing as well.

    San Marino

    Located within Italy and surrounded by the Apennine Mountains. San Marino is visited by approximately 2 million tourists annually. It's a beautiful country, which also claims to be the oldest surviving state in the world! Therefore its cultural and historic heritage is undoubtedly fascinating. Although very small, the microstate has a lot of architectural attractions as well as the Romagna, which is loved by Italians, who are among the main guests here.

    Maldives

    Maldives is located on the bank of Indian Ocean. Maldives has a range of different habitats including deep sea, shallow coast, and reef ecosystems, fringing mangroves, wetlands and dry lands. Visitors to the Maldives do not need to apply for a pre-arrival visa, regardless of their country of origin, provided they have a valid passport, proof of onward travel, and the money to be self-sufficient while in the country.

    Andorra

    It's a picturesque microstate found in the Pyrenees Mountains, bordering Spain and France. Over 10 million tourists visit Andorra every year! Unlike the neighboring countries' high prices, the country has a duty-free policy, allowing shoppers to enjoy lower costs. Also there are winter and summer resorts, so you can visit anytime.

    World-famous scientist Stephen Hawking has died at the age of 76. He was often called the most brilliant theoretical physicist since Albert Einstein. But his amazing career actually started as a young man who struggled to get around to doing his homework at Oxford University where he studied physics. He then went on to Cambridge to research cosmology, the study of the origin of universe.

    When he was 21, Hawking's life hit a big hurdle. He was diagnosed with Motor Neurone Disease. The disease causes the brain to stop sending messages to a person's muscles. At the time, doctors said he would only live for around 2 years, but he proved them very, very wrong.

    And with the help of a special wheelchair and speech computer, Hawking spent much of his time researching the beginning of the universe and black holes. His most famous discovery was probably when he demonstrated that black holes emit some radiation, which has since become known as Hawking Radiation. He also spent a lot of time thinking about what existed before the big bang.

    Hawking wrote books that explained his big ideas in ways that could be understood by the average person. In 1988 he published A Brief History of Time. It became really popular and sold more than 10 million copies. However, he wasn't just known for his books. He also had a lot of fun becoming a regular on TV screens around the world. He even had a big Hollywood film made about his life.

    Throughout his life Stephen Hawking inspired people to look beyond our planet and expand our knowledge of the universe. His family says that he'll be greatly missed and the legacy of his amazing ideas will live on.

    When Jenny Benson was eight, her mother took her to soccer practice for the first time.

    "She's never played soccer before," Mrs. Benson told the coach." I'm not sure how she'll do."

    Jenny ran onto the field and joined the other players. Over the next hour, Mrs. Benson and the coach watched as Jenny out­ran many of the more experienced players.

    "I knew then that soccer would be Jenny's sport." Mrs. Benson recalls. And she was right.

    It may have helped that Jenny had spent much of her time trying to keep up with her three brothers." I wanted to be just like them," Jenny says." My family has inspired me for my entire life."

    Jenny has retired from the United States women's national soccer team. She started out on her professional career in the Philadelphia Charge, a team in the Women's United Soccer Association (WUSA)．Later on, she joined FC Energy Voronezh, and then New Jersey Wildcats.

    When the WUSA was being formed, league officials watched many college soccer games, looking for players good enough to join the league. They were very interested in Jenny, who played for the University of Nebraska.

    "Throughout that college season, I knew I was being watched," Jenny says, "I knew I couldn't be perfect, so I just tried to be very consistent and have fun."

    As a professional, Jenny relied on her focused but fun­loving attitude. "In a game, I try never to put too much pressure on myself. The more I concentrate on having fun, the better I play." She says. "I have good and bad days, just like everyone else, but I know the sun will always come up after a bad day. So all I have to do is to adjust myself, either to the change of my inner feelings or to the change of circumstances. That helps me get through anything."