If you've been to Europe a few times already, chances are that you've hit all the big destinations: London, Paris, Rome,Berlin.On your next trip you can either visit those same cities a second time,or instead you can take a chance and walk the streets of some cities that are a little bit smaller,a little bit less famous,but still full of European grace and charm.Here are four European cities to visit that you probably haven't been to yet.

    Besancon,France

    This hidden French city has had a long reputation for being a well-kept secret.It can be at once sleepy with few tourists but abundant galleries,restaurants,and a wonderful Beaux Arts museum whose collection is second only to the Louvre.The city is wound by the River Doubs and also touts (吹捧) its own UNESCO World Heritage Site in the Citadel,home to several small museums and a zoo.

    Seville,Spain

    For the tourist who is already tired of Barcelona and Madrid,Seville offers a different take (意见) on Spain. Located on the Southern coast,it keeps beautiful signs of the long period of Moorish rule,nowhere more than in the Alcázar palace building,just one of the city's UNESCO World Heritage Sites.Seville has over a dozen museums, tropical parkland,and probably the best tapas (餐前小吃) culture in all of Spain.

    Ghent,Belgium

    Ghent is a city that looks like it should be the setting for a fairy tale. All of the typical Belgium features abound here-waffles and beer.Every year from Saturday before July 21,Ghent hosts a ten-day festival.This music and theater festival draws almost 2 million visitors,as the city streets transform into performance spaces for performers,buskers (街头艺人) and musicians.

    Palermo,Italy

    Palermo is the capital city of Sicily,the southern island off the coast of mainland Italy.The city has an ancient history,and the various cultures that have controlled the island through the years have all left their marks on it. You can see winding street markets,antique (古玩) fairs,and open air nightclubs here.

    Computer technology is still developing rapidly. The computer of the future will continue to increase in value and performance while decreasing in cost. It will become smaller, but faster and more powerful.

    It is possible to make some guesses about what the future of the computer will look like, based upon the types of technologies that are being developed now. A lot of progress has already been made in some of these new technologies, but some are still in their earliest stages and may not be ready for use for years. Two of the most interesting areas of computing that are currently being developed are quantum computing (量子计算) and nanotechnology (纳米技术).

    Quantum computing is one possibility for the future of the computer that could make computers run far faster than even the quickest computers do today. Quantum computers could be able to do what modern supercomputers are unable to do by using transistors that are able to take on many states at the same time.

    Nanotechnology could also change the face of computing, by creating computers that could be very powerful, though they are tiny in size. These computers could be incorporated (并入) into everyday objects, including electrical appliances (电器), clothes and even the human body. We will be able to use computers in new and unimaginable ways. They will become a part of our lives rather than simply being a box that is used only for specific purposes, such as work.

    Quantum computing and nanotechnology will be able to play new roles, which will make us live greener lives, as well as enjoy better health and happier lives.

Research shows that isolation(隔绝，孤立)is bad for us and associated with certain diseases including depression, high blood pressure and heart disease. Yet teenagers seek isolation by using the device of our times—a screen, screens of all kinds. However, in whatever form, screens are addictive, and addictive from an early age. Research has shown that given the chance, six-month-old babies prefer screens to real human faces.

    Hand in hand with this addiction to screens, we are seeing an explosion of teenage mental health problems. Social media claims to be inclusive, keeping you connected. But it's not. It isolates you from real people. Screens have even been described as being poisonous for teenagers.

    Psychologist Jean Twenge, a professor at San Diego State University, believes today's teenagers are “on the edge” of a major mental health crisis and requestes, “do anything that doesn't involve a screen”. The problem is, she claims, children born between 1995 and 2012 have grown up with a smart phone in their hands, and it has “changed every aspect” of their lives. The number of teenagers who actually see their friends frequently has dropped by more than 40% since 2000. In 2015, only 56% of 17-year-old went on a date, down from 85%. Modern teenagers are slower to learn to drive, or earn money and spend more time at home. They're “on their phone, in their room, alone and often depressed”, she says.

    Some critics, however, say we should encourage our children to spend more time online. Robert Hannigan, former director of GCHQ, said in August that Britain is badly short of engineers and computer scientists, and urged children to develop cyber skill to compete in the digital economy.

    I' m not the first to say that social media is inferior to real human contact, and harms mental health. Studies show teens who spend three hours a day online are 35% more likely to suicide(自杀).

    The suicide rate among girls aged 12 to 14 has more than doubled in a decade.

    Steven Spielberg never fails to blow us away with his imagination.

    The US director's latest film Ready Player One, which was released in Chinese mainland cinemas on March 30, is a story set in the year 2045, when people escape their hopeless everyday lives by putting on a VR mask and entering a virtual (虚拟的) world named Oasis. This fantasy land is filled with characters and settings right out of classic films and videogames like The Shining and Overwatch. It's a feast both for the eyes and mind. And at the age of 71, Spielberg is still “at the top of his game”, wrote reporter Rafer Guzman on Newsday.

    Indeed, Spielberg has always been a gamer himself or rather a game changer. When his thriller Jaws came out in 1975, it struck a chord (引起共鸣) with audiences all over the world and kept people from going swimming for fear. The film was also the first example of what we now know as summer blockbusters.

    “Jaws invented that form of pleasurable entertainment, wrote Stephen Marche on Esquire. It also turned sharks, in the popular imagination, from fish into monsters.”

    And again, in his 1982 film E. T. the Extra-Terrestrial Spielberg challenged people's beliefs that aliens are something to be feared by telling a story about a loving friendship between a space creature and a little boy. “Spielberg redefined popular sci-fi”, wrote Marc Lee on The Telegraph. “Extra-terrestrials no longer had to be a threat to humanity: the universe, he was saying, is also full of awe and wonder.”

    Now comes Ready Player One. When Wade Watts, the film's teenage protagonist (主角), finally prevents Oasis from falling into the wrong hands, he's given ownership of the virtual world by its late designer James Halliday. But Watts makes a decision that he hopes will make people want to appreciate their real lives, instead of spending all their free time escaping reality in Oasis, which is a real-life message that Spielberg is trying to deliver to the audience.

    Obviously,art always amuses children and they can easily get benefit from it.This only proves that introducing art education at an early age is a great way to let children express what they see in their environment.Art activities give your children pleasurable experiences.

    Art education helps children learn and improve communication skills.Apparently,there are children who find difficulty in communicating in words.In this sense,expressing their feelings through art is an excellent way.Art for kids offers a lot of important skills in life that will lead them to the right path.Simply watching television can teach them to read and count.Therefore,allowing your kids to paint can tell the thought in their mind.

    Every child should learn problem solving naturally and on his own.In fact,when children are making something like drawing or painting,it is one way of problem solving.It is because art gives more realistic models that are stable. Likewise,art education can also help in developing critical-thinking skills,music,dance and theater arts.

    Moreover,creating arts in group is a good way of mastering skills and in the same way they also learn from those of their age without pressure unlike the formal teaching lessons.That is why adult with children engaging in art should know that art is not all about expressing talent but it is a skill of creativity.

    Also,engaging in art education can help building confidence.It is because even if they do not make it the right way,yet they feel proud on their artistic creations.Since art is a good start to collaborate（合作）with others,children can easily learn the cultures from different parts of the world.Therefore,teaching art education to children can spark （激发）their interest.You can visit Madison Art Shop if you are looking for art materials and supplies.

    "Iris scan (虹膜扫描), please," the bank's computer voice tells you . You step up and the computer reads your eye, comparing it to the stored file it has of your iris. The images had better match—otherwise you won't be able to get your money.

    Iris scanning and other technologies, such as fingerprint and voice scanning, have appeared in many science fiction movies in the past. Today, these advanced technologies are part of the real world. They are common at work, the bank, the airport, and your local prison. The iris scan, fingerprint scan, and voice scan are all examples of biometrics( 生物测定学) a fast developing area of automatic personal identification technology . Basically, biometrics uses various ways to verify a person's identity, based on the individual's unique characteristics, including fingerprints, voices, irises, body heat patterns, facial images, handprints, signatures and so on.

    Biometrics identification systems have a number of advantages over password systems. The primary advantage is that an individual has to be physically present in order to be identified. Another important advantage is that there are no passwords to remember, forget, lose or steal.

    The voice scan is the simplest and most affordable form of biometrics. It only requires a computer, a microphone and the correct software. The software records a subject's voice and then compares it to a stored voice sample for identification purposes.

    For additional safety, fingerprint and handprint scans can also be employed. Fingerprint scans take the image of a fingerprint and compare it to a stored file of prints. Handprint scans identify the unique features of a hand.

    Iris scans currently give the highest level of accuracy among all the available biometrics systems. Another technology, full facial scans, is currently in use at border crossings and airports. Facial scanning equipment can actually track and identify moving faces within a crowd.

    The potential of biometrics is exciting and encouraging. With continued development, testing, and application, current technologies will become even more effective in the future. Soon, the days of password and car keys will be gone. Just don't leave home without your fingerprints!