Your next ca might drive itself. After years of trials on city streets, driverless vehicles are now nearing the live phase. Last moth, a driverless bus began carrying passengers through Lyon, France, Most in the automobile industry think self-driving vehicles will be on the road by 2020 or before.

    Driverless cars will at first be huddled with human-driven cars. But the first places where they will become dominant（统治的）are dense urban areas — precisely the spots most damaged by the automobile age. Many advanced cities are already reducing the role of human-driven cargo. Driverless cars will quicken that process and will bring us enormous benefits.

    Driverless cars will reduce accidents by around 90 percent. That's big—the annual death toll on the world's roads is about 1.2 million a year. Pollution and carbon emissions will drop, because urban driverless cars will be electric. The old, otherwise they would stay at home most of the time and the disabled and teenagers will suddenly gain mobility.

    On the other hand, driverless cars will bring catastrophe. The best thing about the automobile age was that it employed tens of millions of people to make, market, insure and drive vehicles. Over the next 20 years, the mostly low-skilled men who now drive trucks, taxis and buses will see their jobs reduced. Carmakers are especially scared. The few cars of the future might be made by tech companies such as Apple, Baidu and Google. Imaging the impact on Germany, where the automotive sector is the largest industry.

    Dramatic change is coming, and driverless cars could arrive by 2020. But governments have barely begun thinking about it. Only 6 percent of the biggest US cities have factored them into their long-term planning.

    A decade ago anyone hardly saw the Smartphone coming. It has bought an epidemic of mass addiction. Let's hope we do a better job of handling the driverless car.

    They like using the Internet. They have lots of pocket money to spend．And they spend a higher proportion of it online than the rest of us. Teenagers are just the sort of people an online seller is interested in, and the things they want to buy — games, CDs and clothing — are easily sold on the Web.

    But paying online is a tricky business for consumers who are too young to own credit cards. Most have to use a parent's card. They want a service that allows them to spend money.

    That may come sooner than they think: new ways to take pocket money into cyber (网络的) space are coming out rapidly on both sides of the Atlantic. If successful, these products can stimulate (刺激)online sales.

    In general, teenagers spend huge amounts: $153bn (billion) in the US last year and ￡20bn annually in the UK．Most teenagers have access to the Internet at home or at school — 88 percent in the US, 69 percent in the UK. According to the Jupiter Research, one in eight of those with Internet access has bought something online — mainly CDs and books.

    In most cases, parents pay for these purchases with credit cards, an arrangement that is often unsatisfactory for them and their children. Pressing parents to spend online is less productive than pressing on the high street. They are more likely to ask “Why?” if you ask to spend some money online.

    One way to help teenagers change notes and coins into cyber cash is through prepaid cards such as Internet Cash in the US and Smart cards in the UK. Similar to those for pay-as-you-go mobile telephones, they are sold in amounts such as￡20 or $50 with a concealed (隐藏的) 14-digit number that can be used to load the cash into an online account.

    If you are travelling in Britain, besides so many world-class things to see and do in London, planning a day trip away from it can also be worthwhile.

    Stonehenge

    Stonehenge consists of a group of huge standing stones. The 5,000-year-old stones are one of the world's biggest mysteries that no one has figured out yet. While exploring Stonehenge, you can imagine wildly and decide for yourself how the stones came to be there and why. Although you can't touch the stones, you can walk among them and feel the changes of seasons.

    Windsor

    Most people visit Windsor to see Windsor Castle, where the Queen spends most of her time. The castle itself could keep you busy for days. The best way to appreciate Windsor Castle is to approach via the Long Walk, a straight road where there are no cars, but you might see some deer.

    Oxford

    Oxford is best known for its world-famous university. The large student population keeps the atmosphere young and fresh, though there's no shortage of history if you want it. 30 colleges make up the university itself. A tour of the colleges is a must—Harry Potter fans will recognize various locations used in the movies.

    Bath

    Founded by the Romans, who used the area's springs to create a spa retreat（水疗中心）, Bath's now the best tourist attraction of Southwest England. Visitors never miss the Roman Bath Complex, which is divided into four main parts—the Bath House, the Sacred Spring, the Roman Temple and the museum, which displays fascinating finds from the historical ruins of the city.

    American and British people use different greetings. In the USA the commonest greeting is “Hi”. In Britain it is “Hello!” or “How are you?”. “Hi!” is creeping(不知不觉地进入) into British, too. When they are introduced to someone, the Americans say, “Glad to know you.” The British say, “How do you do?” or “Pleased to meet you.” When Americans say “Good-bye”, they nearly always add, “Have a good day.” or “Have a good trip.” etc. to friends and strangers alike. Britains are already beginning to use “Have a good day.”

    The British usually use “got” in the sense of “have”. The Americans hardly ever do.

AmE: Do you have a car, room, etc.? Yes, I do.

BrE: Have you got a car, room, etc.? Yes, I have.

    There are a number of differences between American and British English in the spelling of words, e.g. check(US)/cheque (UK). Many American words ending in “or”, e.g. honor, labor are spelt in British English with an “our,” e.g. honour, labour. Many verbs in American English with “ize” or “izing” forms, e.g. organize, realizing are spelt in BrE with “ise” or “ising”, e.g. organise, realising. In American English, “practice” is used both for the verb and noun. In BrE, the verb is spelt “practise”, and the noun “practice.” In American English, one writes “traveler,” while in British English, one writes  “traveller”.

    It was once predicted that British and American English would become separate languages finally. But the opposite has happened. The links(联系) between the two countries are so strong that linguistically(语言上地),and probably culturally(文化上地) too, they are closer together than ever.

    Everyone looks forward to progress, whether in one's personal life or in the general society. Progress indicates a person's ability to change the way he is living at the moment. Progress must lead a better way of doing things. All these, however, remain true only in so far as people want to accept technology and move forward by finding new and more efficient ways of doing things.

    However, at the back of the minds of many people, especially those who missed the “good old days”, efficiency comes with a price. When communication becomes efficient, people are able to contact one another no matter where they are and at whatever time they wish to. The click of a button allows people miles apart to talk or to see each other without even leaving their homes. With the communication gadgets, such as mobile phones and ipads, people often do not take the effect to visit one another personally. A personal visit carries with it the additional feature of having to be in the person's presence for as long as the visit lasts. We cannot unnecessarily excuse ourselves or turn the other person off.

    With efficiency also comes mass production. Such is the nature of factories and the success of industrialization today. Factories have improved efficiency. Unskillful tasks are left to machines and products are better made and produced with greater accuracy than any human hand could ever have done. However, with the improvements in efficiency also comes the loss of the personal touch when making these products. For example, many handcrafts are now produced in a factory. Although this means that supply is better able to increase demand, now that the supply is quick and efficient, the demand might fall because mass production lowers the quality of the handicraft and it is difficult to find unique designs on each item.

    Nevertheless, we must not commit the mistake of analyzing progress only from one point of view. In fact, progress has allowed tradition to keep up. It is only with progress and the invention of new technology that many old products can be brought back to their old state. New technology is required for old products to stay old.

    It is people's attitude towards progress that causes the type of influence that technology has on society. Technology is flexible. There is no fixed way of making use of it. Everything depends on people's attitude. The worst effects of progress will fall on those who are unable to think again about their attitudes and views of society. When we accept progress and adapt it to suit our needs, a new “past” is created.

    As a Fulbright（富布莱特法案基金）scholar at Yale, I wanted very much to get some individual help from some famous professors, but their office-hours were only once a week and there were always students waiting outside. At first, I was too polite to get their help. Then I realized that Chinese politeness does not work in this society. I needed to be aggressive to get what I wanted. I also noticed that Chinese students or Asian students were very polite in class while American students often interrupted the professor, asking questions and dominating the discussion. The Chinese students were not as aggressive as American students.

    I was impressed by the role of the professor in the class. The professor didn't act as an authority, giving final conclusions, but as a researcher looking for answers to questions together with the students. One linguistic feature of his interacting with his students was that he used many modal verbs-far more than I did in Beiwai. When answering questions, he usually said: "this is my personal opinion and it could be wrong. It would be a good idea if you could read the book I mentioned the other day." Or," You may find the book I recommended helpful." Or, "You could be right, but you might find this point of view also interesting." When making comments on students' performances, the professor usually said:" It might have been much clearer if you had taken in some of the ideas we discussed earlier this semester."

    In China, authorities are always supposed to give wise decisions and correct directions. Therefore students always expect the professor to give an answer to the question. I still remember how annoyed they were when foreign teachers did not provide such an answer. Their expectations from authorities are much higher than those of American students. Once the Chinese students got the answer, they were sure about it. That is why they make far more certain statement than American students. That is why Chinese students find it difficult to use modal verbs because the function of modal verbs is to provide room for negotiation and different ideas.