China is a country on the move—especially around its Lunar New Year holiday. This year, the holiday crush（客流量） promises to be even heavier than before.

    Government officials estimate that Chinese people will take to the air, roads and railways 3.62 billion times over a 40-day period around the nation's most important holiday this year as people push their way home for family gatherings or to satisfy their new-found passion for travel.

    Getting tickets to all those would-be travelers is a discounting challenge that annually tries patience. And it is the railway system that routinely is most unable to cope. Railways are the transport of choice for low-cost long-distance travel, and that's where the ticketing system routinely falls down.

    Much of the criticism has, focused on the railway's online purchasing system, which has been unable to keep pace with the huge demand and also failed to stop scalpers（票贩子） from ending up with many of the hard-to-find tickets.

    While insisting that online sales were the fairest way to get tickets for travelers, railway officials told reporters that the public need to be patient. Efforts were being made to provide online identity checks that would reduce the ticket scalping problems. While officials had little good news for rail passengers, they did manage to bring a few smiles to those traveling by car as the country's extremely expensive highway tolls （通行费） will be free of charge for the period of the official holiday.

    A long time ago people thought that the sun went round the earth. In some countries people even said that the sun was a god(神). They thought the god drove across the sky each day on a golden horse. Now we know the earth goes round the sun. It takes the earth a year to go a circle(圈) round the sun. Today men even know how far it is for the earth to go round the sun. They tell us that the earth travels over a thousand miles a minute on its journey round the sun.

    The sun is really a star. It is much bigger than the earth and it is very hot. Some people have been to the moon but we know that no one can ever go to the sun. It is far too hot for people to live anywhere near it. The sun is three hundred thousand times heavier than the earth and more than million times larger.

    In the fall of 1959, Freed suffered a bad reputation for rumors of bribery (贿赂行为), and his troubles were too strong to be resisted. When WABC asked Freed to sign a statement swearing that he had never taken bribes, he refused and was fired. Although he later signed such a statement for WNEW-TV, he lost his television show as well.

    Finding himself unwelcome in New York, Freed fled to the West Coast, where he managed to land a daytime disc jockey (流行音乐播音员) job at KDAY in Los Angeles in 1960. Legal problems continued to bother him, though, and he was charged with taking bribes of more than $30,000 from a number of record companies. Publicly, Freed denied that he had ever accepted direct bribes, although he acknowledged that he had accepted gifts from record companies, but only for playing records that he was certain would become hits anyway. After a short time at KDAY, he left when the station management refused to let him promote his live rock ‘n' roll shows. He returned to New York, but not as a broadcaster. At the height of the great enthusiasm for the twist dance, he hosted a Manhattan twist revue (时事讽刺剧), but when this enthusiasm cooled, he found a disc jockey job at WQAM in Miami in 1962. During this difficult period, Freed began drinking heavily and lost his job in Miami after only two months. In December of 1962 he was found guilty in New York of two charges of commercial bribery and was given a six-month sentence and fined $300. This effectively ended his career.

    Freed spent the last years of his life in Palm Springs, California. Although he had redefined what it meant to be a disc jockey and named the music that had become an anthem (圣歌) for the world's youth, he was a disgraced (耻辱的) and broken man, no longer able to work in the business he loved. On January 20, 1965, he died in a hospital in Palm Springs.

    Most academics would view a post at an elite university like Oxford or Harvard as the crowning achievement of a career—bringing both honour and access to better wine cellars. But scholars desire such places for reasons beyond glory. They believe perching on one of the topmost branches of the academic tree will also improve the quality of their work, by bringing them together with other geniuses with whom they can collaborate and who may help spark new ideas. This sounds reasonable. Unfortunately，as Albert Laszlo Barabasi of Northeastern University，in Boston (and also, it must be said, of Harvard), shows in a study published in Scientific Reports, it is not true.

    Dr Barabasi and his team examined the careers of physicists who began publishing between 1950 and 1980 and continued to do so for at least 20 years. They ranked the impact of the institutions these people attended by counting the number of citations each institution's papers received within five years of publication. By tracking the association of individual physicists and counting their citations in a similar way, Dr Barabasi was able to work out whether moving from a low to a high-ranking university improved a physicist's impact. In total, he and his team analysed 2,725 careers.

    They found that, though an average physicist moved once or twice during his career, moving from a low-rank university to an elite one did not increase his scientific impact. Going in the opposite direction, however, did have a small negative influence. The consequence is that elite university do not，at least as far as physicists are concerned，add value to output. That surprising conclusion is one which the authorities in countries such as Britain, who are seeking to concentrate expensive subjects such as physics in fewer, more elite institutions—partly to save money, but also to create what are seen as centers of excellence—might wish to consider.

    February 14th is Valentine's Day! In China, it is only a day for boyfriends and girlfriends. But my teacher and my friends in America told me that Valentine's Day is a public day.

    This was my first Valentine's Day in America. I didn't understand the customs clearly. Maybe I didn't need to send any gifts. I watched others to see what they did, so next time I can understand.

    On that day, when we began the reading class, Mr. Peters gave every student some chocolates and said, “Happy Valentine's Day!” I was very happy. The teacher gave his students gifts and blessings! I never saw that in China. Maybe American teachers are very different. I didn't buy a gift for the teacher, so I owed a gift to the teacher. Anyway, I want to say, “Thank you teacher, and I'm sorry.”

When we had a break, one of my classmates gave me a Pokemon card. It was very funny. I felt we were children. I thought I owed a gift again, but I felt thankful. It was another gift, but it was from my new classmate.

    When we were moving to our grammar class, suddenly I heard someone calling me, “Shelly!” I stopped. Another classmate who had only been in our class one day gave me some chocolates. She said, “These for you and your friends. Have a good day!” I was looking at her leaving and thinking she spoke Arabic. We were in the same class only one day, but now we are friends. That's very good, but I owed a gift again.

    When I came home, my Chinese friend sent some roses and chocolates. I was surprised and happy because I had never received roses in my past life, but I hoped it was the last gift. I didn't want to owe more gifts.

We all love to take photographs. It's a simple way to snap a special moment, an amazing view, or just to show off your artistic skills. And it's great to look back through your photo albums and share memories with your friends. In fact, they show a snapshot (快照)in time. This hasn't really changed since the invention of photography in the 1830s. But one thing that has changed is the equipment we use.

For many years, we have used traditional cameras to take our pictures with. Our images were taken onto camera film which was then processed into negatives from which photos were printed— a lengthy process. And we've had a range of cameras to choose from— from the simple compact camera to more advanced single lens reflex, or SLR cameras.

But the biggest change has come with the development of digital devices. This has made taking photo quicker and easier. It's enabled us to take a snap and review our pictures instantly. We've been able to deal with them in post-production, using software on our computer. And of course, we've been able to share them like never before— particularly on social media.

Of course, now we have the smartphone— a phone that is, well, smart because it can take photos and sometimes very good quality ones, and we can share them easily. So does that mean the traditional camera will eventually become outdated? Figures from Japan show how the market is shrinking: shipments of compact digital cameras from companies like Olympus, Canon and Nikon were down 39 percent year on year.

But Phil Hall, editor of Tech Radar magazine, told the BBC that while people are swapping their compact cameras for smartphones, "manufacturers are looking at the more higher-end cameras, high-end compacts, DSLRs, which are the ones you can attach lenses to, mirrorless cameras. In this sense, there's nothing to worry about. "