Reading can be a social activity. Think of the people who belong to book groups. They choose books to read and then meet to discuss them. Now the website BookCrossing.com turns the page on the traditional idea of a book group.

    Members go on the site and register the books they own and would like to share. BookCrossing provides an identification number to stick inside the book. Then the person leaves it in a public place, hoping that the book will have an adventure, traveling far and wide with each new reader who finds it.

Bruce Pederson, the managing director of BookCrossing, says, “The two things that change your life are the people you meet and books you read. BookCrossing combines both.”

    Members leave books on park benches and buses, in train stations and coffee shops. Whoever finds their book will go to the site and record where they found it.

    People who find a book can also leave a journal entry describing what they thought of it. E-mails are then sent to the BookCrossers to keep them updated about where their books have been found. Bruce Peterson says the idea is for people not to be selfish by keeping a book to gather dust on a shelf at home.

BookCrossing is part of a trend among people who want to get back to the “real” and not the virtual(虚拟). The site now has more than one million members in more than one hundred thirty-five countries.

My Favourite Travel Books

    The Old Patagonian Express by Paul Theroux

    Choosing my favorite Paul Theroux book is like picking my favorite place in the world: It's impossible to settle on just one. But The Old Patagonian Express, which is about a train journey Theroux made from Boston, USA to southern Argentina, is right up there at the top of my list. Theroux has a wicked sense of humor. He brings so much wisdom and experience to his travels.

    Walden by Henry David Thoreau

    If he were alive today, Thoreau would probably frown if he heard someone refer to Walden as a travel book. But I regard it as a travel-writing masterpiece. I went into the woods, he writes, because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived. That's the same spirit of discovery that defines so many great contemporary travel records.

    The Dharma Bums by Jack Kerouac

    Like so many people, I fell in love with Kerouac's novels in my late teens and early 20s. On the Road gets all the press, but I always love The Dharma Bums. Kerouac beautifully captures the romance of California trains, Berkeley, and backpacking in the Sierras. It's hard to read this book without wanting to leave for the mountains to brainstorm bad haikus on the trail and cook canned macaroni and cheese over a crackling campfire.

    Confucius Lives Next Door by T. R. Reid

    This is sort of A Year in Provence in Japan, only the cross-cultural differences are much greater. Reid and his family moved to Tokyo when he became the chief for The Washington Post, enabling him to uncover truths about the country. Among the highlights are his observations about Japanese schools, including Yodobashi No. 6 Elementary School, where his daughters were greeted by the whole school staff.

    The days of the hunter are almost over in India. This is partly because there is practically nothing left to kill, and partly because some steps have been taken, mainly by banning tiger-shooting, to protect those animals which still survive.

    Some people say that Man is naturally a hunter. I disagree with this view. Surely our earliest forefathers, who at first possessed no weapons, spent their time digging for roots, and were no doubt themselves often hunted by meat-eating animals.

    I believe the main reason why the modern hunter kills is that he thinks people will admire his courage in overpowering dangerous animals. Of course, there are some who truly believe that the killing is not really the important thing, and that the chief pleasure lies in the joy of the hunt and the beauties of the wild countryside. There are also those for whom hunting in fact offers a chance to prove themselves and risk death by design; these men go out after dangerous animals like tigers, even if they say they only do it to rid the countryside of a threat. I can respect reasons like these, but they are clearly different from the need to strengthen your high opinion of yourself.

    The greatest big-game hunters expressed in their writings something of these finer motives. One of them wrote.

    "You must properly respect what you are after and shoot it cleanly and on the animal's own territory(领地)。You must fix forever in your mind all the wonders of that particular day. This is better than letting him grow a few years older to be attacked and wounded by his own son and eventually eaten, half alive, by other animals, Hunting is not a cruel and senseless killing - not if you respect the thing you kill, not if you kill to enrich your memories, not if you kill to feed your people."

    I can understand such beliefs, and can compare these hunters with those who hunted lions with spears(矛) and bravely caught them by the tail. But this is very different from many tiger-shoots I have seen, in which modern weapons were used. The so-called hunters fired from tall trees or from the backs of trained elephants. Such methods made tigers seem no more dangerous than rabbits.

    Lucy, whose skeleton（骨骼） was discovered in Ethiopia in 1974, died shortly after she fell out of a tree, according to a new study published Monday in the British journal Nature.

    For their research, Kappelman and Dr. Richard Ketcham used a CT scanner to create more than 35,000 "slices" of Lucy's skeleton. Scientists named her Lucy from the Beatles song "Lucy in the Sky with Diamonds", which was played at the camp the night of her discovery.

    The following analysis of the slices showed sharp, clean breaks seen at the end of Lucy's right humerus （肱骨） are similar to bone breaks seen in victims of falls.

    The researchers concluded that these and other breaks in her skeleton show that Lucy, who is believed to have stood about 3 feet 6 inches and weighed about 60 pounds, fell feet first and used her arms to support herself﹣but that the injury was too severe to have been survivable.

    The researchers estimate that Lucy was going about 35 miles an hour when she hit the ground after falling from a height of roughly 40 feet, according to the statement.

    That sounds plausible. But other scientists are doubtful. "There are countless explanations for bone breaks," Dr, Donald C, Johanson, director of the Institute of Human Origins and one of the scientists who discovered Lucy, said, "The suggestion that she fell out of a tree is largely a just﹣so story and therefore unprovable." Johanson said it was more likely that Lucy's breaks occurred long after she died, saying that "elephant bones appear to have the same kind of breaks, It's unlikely they fell out of a tree.

    But the new research focused on "a small number of breaks" that are consistent with "high﹣energy bone﹣to﹣bone influences" and which differ from the sorts of breaks commonly seen in other collected bones. Kappelman responded in an email, "These appear to have occurred at or near the time of death."

    As smog forced students to stay home, the online learning industry saw a sharp increase in consumers.

    During the air pollution red alert from Dec. 8 to 10 last winter, the Beijing Commission of Education ordered all kindergartens, primary schools and middle schools to suspend classes (停课). But the commission urged that, "Teachers should guide students to make full use of digital materials and conduct online learning at home".

    According to the China Education and Research Network, the number of new users of 17zuoye. com, an online homework platform, tripled (增至三倍) on Dec. 8 compared to the previous day.

    Online courses companies also adopted special measures to meet students' demand for Internet learning during the red alert period. For example, New Oriental offered free online English classes for three days for school students as well as online question answering services.

    Recent years have seen the popularity of online courses increase sharply in China. Massive Online Open Courses (MOOC), for example, originated in the United States but have become widespread in China since 2013. Some Chinese universities, including Tsinghua University and Peking University, have started their own MOOC platforms. "MOOCs have enlarged the time and space of teaching, fired up learners' interest, helped more people benefit from high quality educational resources and accelerated reform in many aspects of teaching," an official at the Ministry of Education told China Daily.

    Food Parts You Should Never Throw Away in the Garbage

    Pineapple Core (果心)

    When you carve out the core of t pineapple, don't throw it in the garbage. You can use the pineapple core for all kinds of recipes, and there are tons of vitamins and  minerals hiding within.To use the pineapple core: cut it and add it to fruit salad, put it into smoothies (水果雪泥), cut it into cubes and freeze for law use, or simply add it to water or even tea to improve flavor.

    Kiwi Skln

    If you never thought you could eat kiwi in the way you eat a peach, think again. That skin really is good for you and contains a lot of vitamin C, and in fact, it's also higher hi fiber than the rest of the fruit. Of course, that rough, ugly skin isn't for everyone, so if you don't like it, try adding a whole kiwi to a smoothie to hide the taste of the skin.

    Banana Peel

    Most of us eat the banana without giving the soft peel a second thought. Here's why that's a mistake: banana peel contains tryptophan (色氨酸), which increases "the happiness hormone" to help with mood regulation and nerve system. There are a few creative ways to use the peel. Cook or boil for at least 10 minutes to soften. You can add it to smoothies, stir-fries, or soups. And, for a treat, simply slice and bake a banana with the skin on.

    Water melon Skin and Seeds

    The delicious, red inside makes for a refreshing snack or juice, but you're able to get some powerful nutrients in the skin and seeds as well. Cut out the white part under the green outside and use it in your cooking. It has vitamin C and B6, to keep you healthy. As for the seeds, you can roast them in the oven. Then add them to salads or to nut snacks.