English is an excellent language to learn, whether it's for business, travel or personal reasons. Here are some important ways to improve your spoken English.

    When you have time to speak, just try your best to practice. Don't wait until you “feel more comfortable” speaking in English, so start speaking English today. You'll be surprised at how quickly your language skills improve. Find a native English speaker who is willing to spend some time speaking English with you—you may be able to offer them a language exchange, where they spend 30 minutes speaking English with you and you spend 30 minutes speaking your native language with them.

    Even if you have a good knowledge of the grammar and vocabulary, native English speakers may find it's very difficult to understand if you don't work on your pronunciation. Correct , clear pronunciation is necessary if you really want to improve your English. Listen closely to how native English speakers pronounce certain words and sounds and do your best to copy them.

    The wider your vocabulary and the more English phrases you learn, the easier speaking English will become. Once you have learned a new word or phrase, you should make an effort to use it in a sentence—this is the best way to keep it in mind. You should also start a notebook of phrases that English speakers use all the time.

    Another great way to add some more English conversation into your weekly practice is to sign up for a class of discussion group. Attending an English class is a great way to pay attention to some of the more formal aspects of speaking English. A class will teach you the correct way of speaking. Attending a discussion group is a more informal and relaxed way of learning English, where the emphasis(重点) is more on communication and relationship building than on speaking “correct” English.

    For the past two years I have been travelling and living abroad. Home has become more of a feeling than a place. I feel at home when I am with my family in London, but I also feel at home in Italy with friends I love. Home is no longer a picture of a house with a front door and some windows. It is more complicated than that.

    This is one of the reasons that celebrating the new year has become very important for me. I do not care about "New Year's resolutions (愿望)"—living abroad has made me constantly reconsider what kind of person I want to be and how I will live my life, so I don't feel the need to plan for change: I live for change.

    New Year's Eve has become my time to reconnect with the friends that makes me feel at home. Every year we try to reunite wherever we are and remember the time when we knew each other so well that we felt like a family. It is a moment to reconnect and get to know each other again. Last year, we travelled to a cottage in Ireland where we had no internet and no neighbours. In the middle of the countryside, away from our big and constantly changing lives, we were able to become like a little family again.

    This year, we went to Barcelona. It was a very big change. We were surrounded by culture and life and joy. There were bars and parties. It was different, but one thing stayed very much the same-I felt at home again and we felt like a family again.

    A lot of people feel that New Year's Eve cannot live up to expectations. Ideas such as the "New Year's kiss" and "resolutions" create a lot of pressure for people to have a night to remember, a night that will change their lives and perhaps make the next year one worth living. I think those people are missing the point. If Christmas is about family, why can't New Year be about friends?

    NASA's (美国宇航局的) newly announced space tourism program is possibly the biggest mistake in the agency's history.

    Beginning as early as 2020, NASA will offer visits to the International Space Station for $35,000 per night, not including transportation, to pretty much anyone who can pass a physical.

    The reason this is a mistake, and a big one, is that NASA has worked for generations to create an image of astronauts as extraordinarily skilled, highly trained, courageous heroes. For example, NASA invites grade schools to participate in creating experiments that are carried on the space station. The astronauts talk to kids from space, sending a message that if you study, work hard and learn math and science, you may reach these heights, too.

    According to one report, Las Vegas-based Bigelow Aerospace is making plans to haul four tourists at a time to the space station on SpaceX rockets. U.S. taxpayers forked over a hundred billion dollars to build the International Space Station. It would be nice to try to preserve the image of it as an inspirational achievement, instead of turning it into a flying Howard Johnson's.

    NASA's press release about the space tourism program tries to cast it as a partnership with the private sector to "provide expanded opportunities" at the space station to "manufacture, market and promote commercial products and services." But it also states that one goal is "quantifying NASA's long-term demand for activities in low-Earth orbit."

    The space station has been costing U.S. taxpayers between $1.5 billion and $3 billion each year. If it's perceived as a private Disneyland for the top tax bracket, public support for the entire space program could be at risk.

    But worse, we will have degraded what once inspired us. Sometimes a nation needs stars in its eyes.

    Vinegar is great. It makes salad, fries and dumplings taste better, and you can even clean your windows with it. And now, according to scientists, it may even help the planet's population to ease hunger.

    Researchers from the RIKEN Center for Sustainable Resource Science (CSRS) in Japan found that growing plants in vinegar makes them more resistant to droughts.

    This could mean that in the future, worries about climate change affecting the world's supply of food will be much lower.

    The discovery was made after the researchers studied the Arabidopsis, a plant known for its ability to survive in dry weather. It was found that when the plant was placed in drought-like conditions, it produced a chemical called acetate(醋酸盐) – the main component of vinegar.

    After discovering this, the scientists experimented further by adding acetate to the soil of other plants, before they stopped giving them water completely. After leaving the plants for 14 days, they found that the ones treated with acetate had survived, while the untreated plants had dried up and died. It's hoped that this simple method of survival could soon be used to help farmers in dry countries keep their crops alive.

    Jong Myong Kim, co-author of the study, told Popular Science magazine that he's already been in touch with people all over the world who are interested in trying this simple and cost-effective method out for themselves from flower growing companies to amateur gardeners.

    Although at this point keeping thirsty plants alive isn't as easy as just pouring vinegar over them, Kim said he and his team are working on making the process as simple as possible. "Now we are trying to cooperate with some farmers, and also some companies, to make a method to apply this system." he said.

    And for those of us who always forget to ask our neighbors to water our plants when we go away, hopefully this means the end of returning home from a trip to find our favorite flowers have died.

    Everybody sleeps, but what people stay up late to catch or wake up early in order not to miss varies by culture.

    From data collected, it seems the things that cause us to lose the most sleep, on average, are sporting events, time changes, and holidays.

    Around the world, people change sleep patterns thanks to the start or end of daylight-saving time（夏令时间）. Russians, for example, began to wake up about a half-hour later each day after President Vladimir Putin shifted the country permanently to "winter time" starting on October 26.

    Russia's other late nights and early mornings generally correspond（相一致）to public holidays. On New Year's Eve, Russians have the world's latest bedtime, hitting the hay at around 3:30 a. m.

    Russians also get up an hour later on International Women's Day, the day for treating and celebrating female relatives.

    Similarly, Americans' late nights, late mornings, and longest sleep fall on three-day weekends.

    Canada got the least sleep of the year the night it beat Sweden in the Olympic hockey（冰球）final.

    The World Cup is also chiefly responsible for sleep deprivation. The worst night for sleep in the U. K. was the night of the England-Italy match on June 14. Brits stayed up a half-hour later to watch it, and then they woke up earlier than usual the next morning thanks to summer nights, the phenomenon in which the sun barely sets in northern countries in the summertime. That was nothing, though, compared to Germans, Italians, and the French, who stayed up around an hour and a half later on various days throughout the summer to watch the World Cup.

    It should be made clear that not everyone has a tool to record their sleep patterns; in some of these nations, it's likely that only the richest people do. And people who elect to track their sleep may try to get more sleep than the average person. Even if that's the case, the above findings are still striking. If the most health-conscious among us have such deep swings（明显改变）in our sleep levels throughout the year, how much sleep are the rest of us losing?

    In our annual Readers' Choice Awards survey, we asked our readers to rate their favorite cities in the world for arts and culture. These cities are centers of music and dance, museums, and theaters. Here are four of them where you can find inspiration in the arts, starting with the top spot.

    Rome, Italy

    At its peak, the Roman Empire extended over nearly two million square miles of land across Europe, Asia Minor and North Africa. Today, that history is on display everywhere. The city's main attractions are famous not because of tourist advertisements, but because they are really so impressive. No wonder it's known as the Eternal City: You could spend forever here and find new artistic and cultural treasures every day.

    Paris, France

    Hemingway famously called Paris "a moveable feast", but wherever you go while in the city, there is always something to see, hear, taste or feel. With some 150 museums, Paris doubles as an art history class, offering the very best of the discipline across centuries and styles.

    London, United Kingdom

    London is inspiration and setting for the rise of Shakespeare, Dickens, Orwell and Eliot and the breeding ground for all those iconic (标志性的) bands: The Kinks, The Clash and The Stones. London is also Banksy's favorite canvas, home to more than 1,000 galleries, and the kind of place where you can spend a whole day in a single museum and still be ready for more when it opens the next morning.

    Vienna, Austria

    As we all know, Western music would be unrecognizable without Austria's capital, which nurtured many famous musicians. It's also the site of the Vienna Secession, a revolutionary art movement founded in 1897 by Gustav Klimt. Visitors today can see the fruits of all that creativity in the city's 100 – odd museums.