The Speaker was the title of an eight-part television series. It was produced by the BBC in the UK. The aim of the series was to find Britain's best young speaker.

    Young people between the ages of 14 and 18 from across the country were invited to take part in The Speaker. Applicants included tough-talking teens, jokers, and shy, sensitive types. The one thing they had in common was a desire(渴望) to talk publicly and enthusiastically about what was important to them.

    Each applicant was asked to prepare and film a one-minute speech on any subject-from pop music to politics, from hooligans(小流氓) to homework. From all the entries received, 160 speakers were chosen by three judges. These speakers were invited to the next stage of regional auditions(海选), where they had to deliver their one-minute speech again, but this time in front of the judging panel(评审团) and an audience. Of the 160 speakers, only 20 were selected by the judges to go through to the next stage. They then had to give another speech on a subject they were given only seconds before making the speech. Some competitors also had to speak about a picture, again without any preparation.

    The final eight were then coached by celebrity mentors(指导老师) and given new challenges to help improve their speaking skills. Their speeches were judged by the judges and their mentor. By the last part in the series, which was shown at the end of April 2009, only three competitors remained. They were taken on a research trip to Malawi, where they found out first hand the effects of children's rights, ahead of their final speech. Duncan Harrison, a 14-year-old schoolboy from Bristol was chosen as the winner by the judges and mentors.

    When asked what makes a good speaker, the actor, director and teacher, Jeremy Stockwell, who was one of the judges on the series, said, “An effective speaker must know and trust who they are, what they have to say, and why they have to say u. Whether you're playing Hamlet, delivering a political message or presenting a school meeting, you must have a story to tell, a message to pass on and a clear sense of purpose.”

    For Suilasaikhan, a man living in the Inner Mongolia Autonomous Region(IMAR)(内蒙古自治区), life was hard years ago. When the wind blew, the sand made it almost impossible for him to see anything. He had to find his way back home by following the barking of dogs.

    Thankfully, things are much better today. About one third of the desert is now covered with trees, and sandstorms are less common. Ian Teh, who comes from Malaysia, came to China last year and was amazed to see people planting trees in the several deserts in northern China. "To be honest, it was hard to imagine it was ever a desert at all," he said.

    These are the results of Chinas years-long efforts to deal with desertification (沙漠化). In the 1950s, this widespread problem affected the life of about 400 million people in 18 provinces and autonomous regions in China. So China started several programs to deal with it. For example, the Three-North Shelter Forest Program, saw thousands of trees planted in northern China.

    In 1994, China joined the United Nations' convention (公约) against desertification and created the world's first law on sand prevention in 2001. With these efforts, the past five years have seen the area of desert in China decrease by 242,400 hectares.

    Desertification isn't the problem only in China. With china's success in dealing with desertification, the United Nations Environment Program (UNEP) believes the country is a good example for other countries to follow. "China is one of the most successful countries in greening the desert and has lessons to share with the world." UNEP Executive Director Erik Solheim told Xinhua.

    When we talk about famous UK writer Agatha Christie, it seems that her famous detectives Hercule Poirot and Miss Marple are must-reads. So, of course, are her best-selling novels Murder on the Orient Express (1934) and Death on the Nile (1937).

But when the readers around the world were asked to name their favorite Christie novel to mark her 125th birthday on Sept 15, And Then There Were None (1939) topped the list, reported The Guardian.

    It may surprise you to learn that it is a crime novel without a detective. What it does have is suspense (n.悬念) and a very sinister (adj.邪恶的) atmosphere. It is “on a knife edge”, as Mathew Prichard, Christie's grandson, told the newspaper.

    Ten people get an invitation to come to a house on a small island near Devon in South West England. Nobody refuses these invitations since each one promises something the person wants: a job, a holiday, a chance to meet up again with an old friend.

    These people are all responsible for deaths. Some are directly responsible, others are responsible because of what they did not do. Anthony James Marston, for instance, killed two children while driving dangerously. He did not feel guilty and actually complained when he was banned from driving. Another, Emily Caroline Brent, is a harsh person who threw out a young servant for becoming pregnant while unmarried. The servant later killed herself.

    When they arrive at the house they are played a recording. The voice gives details of the wrongdoing of each of the guests. Starting with Marston, each is killed in a way that fits their crime. The series of deaths is completed with a hanging, “and then there were none”, as the title suggests.

    Christie can be quite a predictable writer. Some of her stories are a little unoriginal. But this book is full of clever writing. Look it up to find out what this hugely successful mystery writer, the “Queen of Crime” as she was called, could do at her best.

    When you think of a jungle adventure, what comes to mind? Are they gorgeous birds flying through the air or monkeys jumping through the forest? Do you think of plants? Probably not. After all, plants aren't the most exciting living things in the world. They just sit there and absorb water and nutrients from the soil and the sun. But actually there are also some plants that eat insects and even small animals from time to time. We call these unusual things carnivorous(食肉性) plants. Although most carnivorous plants eat small insects, larger carnivorous plants in some hot and wet areas have been known to capture rats, birds, and frogs.

    One carnivorous plant many people are familiar with is the Venus flytrap. Its unique “jaws” will function when flies and other small insects touch it. Once its jaws close on its victim, it produces a chemical substance that breaks down the insect and absorbs the insect's nutrients.

    There are several other examples of carnivorous plants. For example, some plants can catch insects with their leaves, which are like a tall narrow wineglass, while some trap their victims with sticky tentacles(触手). And some growing in ponds and streams absorb their victims like underwater cleaners. Carnivorous plants tend to grow in areas where the soil is very thin and lacks necessary nutrients. These plants must find other sources for the nutrients they need.

    Trapping and eating insects allows these unique plants to survive. Unfortunately, human and environmental factors continue to threaten the limited environments where you can find wild carnivorous plants.

    Still for many people, the thought of a plant eating an animal seems very strange. In fact, more than one person has turned the idea into a scary story or movie. Carnivorous plants don't pose any danger to humans, though. Unless you're the size of a tiny insect, you don't have to worry about falling prey to a Venus flytrap.

    When men and women take personality tests, some of the old Mars-Venus stereotypes(定式)keep reappearing. On average, women are more cooperative, kind, cautious and emotionally enthusiastic. Men tend to be more competitive, confident, rude and emotionally flat. Clear differences appear in early childhood and never disappear.

    What's not clear is the origin of these differences. Evolutionary psychologists think that these are natural features from ancient hunters and gatherers. Another school of psychologists argues that both sexes' personalities have been shaped by traditional social roles, and that personality differences will shrink as women spend less time taking care of children and more time in jobs outside the home.

    To test these hypotheses(假设), a series of research teams have repeatedly analyzed personality tests taken by men and women in more than 60 countries around the world. For evolutionary psychologists, the bad news is that the size of the gender gap in personality varies among cultures. For social-role psychologists, the bad news is that the change is going in the wrong direction. It looks as if personality differences between men and women are smaller in traditional cultures like India's or Zimbabwe's than in the Netherlands or the United States. A husband and a stay-at-home wife in a patriarchal(男权的)Botswanan clan(部族)seem to be more alike than a working couple in Denmark or France. The more Venus and Mars have equal rights and similar jobs, the more their personalities seem to separate.

    These findings are so unbelievable that some researchers have argued they must be due to cross-cultural problems with the personality tests. But according to new data from 40.000 men and women on six continents, David P. Schmitt and his colleagues conclude that the trends are real. Dr. Schmitt, a psychologist at Bradley University in Illinois and the director of the International Sexuality Description Project, suggests that as wealthy modern societies level(使平等)the barriers between women and men, some ancient internal differences are being developed.

    The biggest changes recorded by the researchers involve the personalities of men, not women.

    Men in traditional agricultural societies and poorer countries seem more cautious and anxious, less confident and less competitive than men in the most progressive and rich countries of Europe and North America.

    To explain these differences, Dr. Schmitt and his partners from Austria and Estonia point to the hardships of life in poorer countries. They note that in some other species, environmental stress tends to extremely affect the larger sex. And, they say, there are examples of stress decreasing biological sex differences in humans.

    Ever walked to the shops only to find, once there, you've completely forgotten what you went for? Or struggled to remember the name of an old friend? For years we've accepted that a forgetful brain is as much a part of aging as wrinkles and gray hair. But now a new book suggests that we've got it all wrong.

    According to The Secret Life of the Grown-up Brain, by science writer Barbara Strauch, when it comes to the important things, our brains actually get better with age. In fact, she argues that some studies have found that our brain hits its peak between our 40s and 60s — much later than previously thought.

    Furthermore, rather than losing many brain cells as we age, we keep them, and even produce new ones well into middle age. For years it's been assumed that brain, much like the body, declines with age. But the longest, largest study into what happens to people as they age suggests otherwise.

    This continuing research has followed 6,000 people since 1956, testing them every seven years. It has found that on average, participants performed better on cognitive (认知的) tests in their 40s and 50s than they had done in their 20s. Specifically, older people did better on tests of vocabulary, verbal memory (how many words you can remember) and problem solving. Where they performed less well was number ability and perceptual speed — how fast you can push a button when ordered. However, with more complex tasks such as problem-solving and language, we are at our best at middle age and beyond. In short, researchers are now coming up with scientific proof that we do get wiser with age.

    Neuroscientists are also finding that we are happier with aging. A recent US study found older people were much better at controlling and balancing their emotions. It is thought that when we're younger we need to focus more on the negative aspects of life in order to learn about the possible dangers in the world, but as we get older we've learned our lessons and are aware that we have less time left in life: therefore, it becomes more important for us to be happy.