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    Suppose you're in a rush, felling tired, not paying attention to your screen, and you send an email that could get you in trouble.

    Realisation will probably set in seconds after you've clicked “send”. You freeze in horrors and burn with shame.

    What to do? Here are four common email accidents, and how to recover.

    Clicking “send” too soon

    Don't waste your time trying to find out if the receivers has read it yet. Write another email as swiftly as you can and send it with a brief explaining that this is the correct version and the previous version should be ignored.

    Writing the wrong name

    The sooner you notice, the better. Respond quickly and briefly, apologizing for your mistake. Keep the tone measured: don't handle it too lightly, as people can be offered, especially if your error suggests a misunderstanding of their culture(i.e. incorrect ordering of Chinese names).

    Clicking “reply all” unintentionally

    You accidentally reveal(透露)to entire company what menu choices you would prefer at the staff Christmas dinner, or what holiday you'd like to take. In this instance, the best solution is to send a quick, light-hearted apology to explain your awkwardness. But it can quickly rise to something worse, when everyone starts hitting “reply all” to join in a long and unpleasant conversation. In this instance, step away from your keyboard to allow everyone to calm down.

    Sending an offensive message to its subject

    The most awkward email mistake is usually committed in anger. You write an unkind message about someone, intending to send it to a friend, but accidentally send it to the person you're discussing. In that case, ask to speak in person as soon as possible and say sorry. Explain your frustrations calmly and sensibly—see it as an opportunity to clear up any difficulties you may have with this person.

    Suppose you work in a big firm and find English very important for your your job because you often deal with foreign businessmen.Now you are looking for a place where you can improve your English,especially your spoken English.

    Here are some advertisements about English language training from newspapers.You may find the information you need.

Global English Center

●General English in all four skills: listening,speaking,reading and writing.

●3-month (700 yuan),6-month (1,200 yuan) and one-year ( 2,000 yuan) courses.

●Choice of morning or evening classes,3 hours per day,Mon.—Fri.

●Experienced college English teachers.

●Close to city centre and bus stops.

Tel: 67605272           Add: 105 Zhongshan Road,100082

Modern Language School

●Special courses in English for business,travel,banking,hotel management and office skills.Small classes (12-16 students) on Sat.& Sun.from 2:00-5:00 pm.

●Native English teachers from Canada and USA.

●Language lab and computers supplied.

●3-month course: 1,050 yuan; 6 month course: 1,850yuan

Write or phone: Modem language School,675 Park Road,100056

Tel:67353019

The 21^st century English Training Center

●We specialize in effective teaching at all levels.

●We offer morning or afternoon classes,both of which last three months and a half at a cost of 800 yuan.

●We also have a six-week TOFEL preparation class during winter and summer holidays.

●Entrance exams: June 1 and Dec.1.

●Only 15-minute walk from city center.

Call 67801642 for more information

The International House of English

●Three/Six-month English courses for students of all levels at very low cost: 60 yuan for 12 hours per week; convenient class hours: 9:00-12:00 am.and 2:00-5:00 pm.

●A four-month evening program for developing speaking skills (same cost as day classes).

●Well-trained Chinese and foreign teachers experienced in teaching English as second/foreign language.

●Free sightseeing and social activities.

●Very close to the Central Park.

For further information call 67432308

    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.

    What will people die of 100 years from now? If you think that is a simple question，you have not been paying attention to the revolution that is taking place in bio-­technology（生物技术）. With the help of new medicine，the human body will last a very long time. Death will come mainly from accidents，murder and war. Today's leading killers，such as heart disease，cancer，and aging itself，will become distant memories.

    In discussion of technological changes，the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times. How long can humans live? Human brains were known to decide the final death. Cells（细胞） are the basic units of all living things，and until recently，scientists were sure that the life of cells could not go much beyond 120 years because the basic materials of cells，such as those of brain cells，would not last forever. But the upper limits will be broken by new medicine. Sometime between 2050 and 2100，medicine will have advanced to the point at which every 10 years or so，people will be able to take medicine to repair their organs（器官）. The medicine，made up of the basic building materials of life，will build new brain cells，heart cells，and so on－in much the same way our bodies make new skin cells to take the place of old ones.

    It is exciting to imagine that the advance in technology may be changing the most basic condition of human existence，but many technical problems still must be cleared up on the way to this wonderful future.

    It's common knowledge that some countries have higher life expectancies than others, but the city you live in can also affect your health.

    Some cities are hard on their residents. In places with poor city planning, for example Lagos, which was called out recently by the Economist Intelligence Unit, public spaces are few, making outdoor activities hard. Lack of infrastructure (基础建设) blocks the streets with cars and the air with pollutants, and residents work long hours for little money.

    These are just some of the factors added up by Spotahome, a rental agency. They've analyzed data from a range of sources, including the World Health Organization, TripAdvisor and the CIA World Factbook to score each city on health, gym availability and quality, life expectancy, obesity, green space and other elements to make a list to work out which are the world's healthiest cities.

    The list is certainly Euro-centric and sunshine is seen as a positive factor. It does go some way towards suggesting which cities are getting it right in providing a good life for their residents. It may not be surprising to learn that most of the healthiest cities are in northern Europe, known for its people-first approach to city planning. The cities of Australia and Canada also do well. However, the first American city is only in 34th place. The UK doesn't fare too well either-its only city in the top 50 list is London, in 40th.

    Whether you're planning a wholesome holiday, or simply wondering what your city can do better in its quest for happy citizens, the list of the 50 healthiest cities will give you pause for thought about the future of city planning. Here are the slender, healthy-eating, clean-aired cities that are getting it right.

According to a new research,the more people in a country who have a particular gene(基因),the happier the nation will be.This DNA is known as the FAAH gene.People with a particular version of it tend to be cheerier souls.There is a link between levels of the FAAH gene and the number of people who say they are very happy.

Sweden—one of the happiest countries in the world—also has lots of happy DNA.Ghana,Nigeria,Mexico and Columbia all come out near the top in the happiness league,and have high rates of the gene.In contrast,the people of Iraq,Jordan and China are among the least likely to rate themselves as very happy and also have the lowest level of the FAAH gene.

However,wealth and health are found to have little effect on happiness.The finding could help explain why some of the world's poorest nations are also the happiest.In addition,the FAAH gene and an optimistic attitude would not always go hand in hand.For example,Russians and Estonians score very low in happiness,despite having the right happy DNA.

Professor Michael Minkov said,"The climate condition is associated with the nation's happiness.We can notice the high occurrence of the FAAH gene in tropical(热带的) areas in the Americas and Africa.And the occurrence of the gene around the Mediterranean Sea is much lower than that in Northern Europe."

The social experts say that genetics is not the only determinant(决定因素) of happiness.The economic and political difficulties in some nations also contribute to the very low happiness scores.Nations that are not blessed with the right DNA aren't necessarily miserable.