Biologists believe that love is fundamentally a biological rather than a cultural construct, because the capacity for love is found in all human cultures and similar behavior is found in some other animals. In humans the purpose of all the desire is to focus attention on the raising of offspring. Children demand an unusual amount of parenting, and two parents are better than one. Love is a signal that both partners are committed, and makes it more likely that this commitment will continue as long as necessary for children to reach independence. But what does science have to say about the notion of love at first sight?

    In recent years the ability to watch the brain in action has offered a wealth of insight into the mechanics of love. Researchers have shown that when a person falls in love, a dozen different part of brain work together to release chemicals that trigger feelings of euphoria, bonding and excitement. It has also been shown that the unconditional love between a mother and a child is associated with activity in different regions of the brain from those associated with pair-bonding love.

    Passionate love is rooted in the reward circuitry of the brain—the same area that is active when humans feel a rush from cocaine. In fact, the desire, motivations and withdrawals involved in love have a great deal in common with addiction. Its most intense forms tend to be associated with the early stages of a relationship, which then give way to a calmer attachment form of love one feels with a long term partner.

    What all this means is that one special person can become chemically rewarding to the brain of another. Love at first sight, then, is only possible if the mechanism for generating long-term attachment can be triggered quickly. There are signs that it can be. One line of evidence is that people are able to decide within a second how attractive they find another person. This decision appears to be related to facial attractiveness, although men may favor women with waist-to-hip ratio of 0.7, no matter what their overall weight is. (This ratio may indicate a woman's reproductive health.)

    Another piece of evidence comes from work by a psychologist at Ben-Gurion University, who found in a survey that a small percentage (11%) of people in long-term relationships said that they began with love at first sight. In other words, in some couples the initial favorable impressions of attractiveness triggered love which sustained a lengthy bond. It is also clear that some couples need to form their bonds over a longer period, and popular culture tells many tales of friends who become lovers.

    One might also assume that if a person is looking for a partner with traits that cannot be quantified instantly, such as compassion, intellect or a good sense of humor, then it would be hard to form a relationship on the basis of love at first sight. Those more concerned with visual appearances, though, might find this easier. So it appears that love at first sight exists, but is not a very common basis for long-term relationships.

    A crisis is on the way．Global warming? The world economy? No，the decline of reading．People are just not doing it anymore，especially the young．Who's responsible? What is responsible? The Internet，of course，and everything that comes with it—Facebook，Twitter，etc..

    There's been a warning about the coming death of literate civilization for a long time．In the 20th century，first it was the movies，then radio，then television that seemed to end the written world．None did．Reading survived；in fact it not only survived，it has developed better．The world is more literate than ever before — there are more and more readers．and more and more books．

    The fact that we often get our reading material online today is not something we should worry over．The electronic and digital revolution of the last two decades has arguably shown the way forward for reading and for writing．Interconnectivity allows for the possibility of a reading experience that was barely imaginable before．Where traditional books had to make do with photographs and illustrations，an e-book can provide readers with an unlimited number of links：to texts，pictures，and videos．

    On the other hand，there is the danger of trivialization(碎片化)．One Twitter group is offering its followers single-sentence-long“digests”of the great novels．War and Peace in a sentence? You must be joking．We should fear the fragmentation(碎片)of reading．There is the danger that the high-speed connectivity of the Internet will reduce our attention span—that we will be incapable of reading anything of length or which requires deep concentration．

    In such a fast-changing world，in which reality seems to be remade each day，we need the ability to focus and understand what is happening to us．This has always been the function of literature and we should be careful not to let it disappear．Our society needs to be able to imagine the possibility of someone entirely in pace with modern technology but able to make sense of a dynamic，confusing world．

    An 80-year-old man was sitting on the sofa in his house along with his 45-year-old highly educated son. Suddenly a crow (乌鸦) landed on their window.

    The father asked his son, “What is this?”

    The son replied, “It is a crow.”

    After a few minutes, the father asked his son for the second time, “What is this?”

    The son said, “Father, I told you just now. It's a crow. ”

    After a little while, the father again asked his son the same question for the third time, “What is this?”

    This time, the son said to his father in a low and cold tone, “It's a crow, a crow.”

    After a moment, the father again asked his son for the fourth time, “What is this?”

    This time the son shouted at his father, “Why do you keep asking me the same question again and again? I have told you already, ‘IT IS A CROW'. Are you not able to understand this?”

    A minute later the father went to his room and came back with a diary, which he had kept since his son was born. On opening a page, he asked his son to read that page. The following words were written in it.

    Today my little son aged three was sitting with me on the sofa when a crow suddenly landed on the window edge. My son asked me 23 times what it was, and I replied him 23 times that it was a crow. I hugged him lovingly each time he asked me the same question. I didn't at all feet angry, but instead felt affection for my son.

    So...

    If your parents reach old age, do not look at them as a burden, but speak to them gently, and be kind to them. Be considerate to your parents.

    For an increasing number of students at American universities, Old is suddenly in. The reason is obvious: the graying of America means jobs, coupled with the aging of the baby-boom generation, a longer life span means that the nation's elderly population is bound to expand significantly over the next 50 years. By 2050, 25 percent of all Americans will be older than 65, up from 14 percent in 1995.The change poses profound questions for government and society, of course. But it also creates career opportunities in medicine and health professions and in law and business as well. “In addition to the doctors, we're going to need more sociologists, biologists, urban planners and specialized lawyers,” says Professor Edward Schneider of the University of Southern California's (USC) School of Gerontology（老年学）.

    Lawyers can specialize in “elder law”, which covers everything from trusts and estates to nursing-home abuse and age discrimination. Businessmen see huge opportunities in the elder market because the baby boomers, 74 million strong, are likely to be the wealthiest group of retirees in human history. “Any student who combines an expert knowledge in gerontology with, say, an MBA or law degree will have a license to print money,” one professor says.

    Margarite Santos is a 21-year-old senior at USC. She began college as a biology major but found she was “really bored with bacteria.” So she took a class in gerontology and discovered that she liked it. She says, “I did volunteer work in retirement homes and it was very satisfying.”

    Andreea, 18, from Romania, sent a photograph of the view from her window and included a brief (简短的）apology: “Sorry, this picture is plain and boring. No one would like it.”

    At home in New Jersey, US, Coreen Burke, 16, clicked on the same image in her inbox. She saw a village with its old houses, and a distant chimney puffing smoke.

    “Isn't this amazingly different from my country?” she thought to herself.

    Burke saw potential in that photo. She posted it to her blog, Outside My Window，which features a daily snapshot (快照）of someone's window view from different people around the world.

    The concept (理念）is simple: We can all relate to the act of staring through a pane of lass (一块玻璃)，onto the scene on the other side,

    “Maybe if we understood the way people from all over the world live,” she added, “we would get along better than we have been lately.”

    On the sit，Can see Frederic's window in the south of France, looking out on sailboats anchored in a tranquil  harbor(宁静的港湾).0r Virginia's view in Canada, a winter scene with trees laced in white.

    Like most high school students, Burke has yet to travel the world. But she hopes to someday collect many stamps in her passport,starting in Greece and India. In the meantime, however, she's devoting herself to her website.she posted the first window view from Switzerland, a sunset captured (拍摄）by an 18-year-old.Then others came flowing in by email, up to seven a day, from as far as Kazakhstan and Indonesia.

    Contributors are marked on a map on her bedroom wall: A blue dot indicates (表示）their country and a pink dot shows their city, if they provide it. The most responses have come from Europe - Estonia, Poland, Italy, Germany and Sweden, to name a few. She is crossing her Angers that she 11 receive a photo from Africa or Antarctica, which are unrepresented so far.

    And while Burke's become a cyber crusader (斗士）for appreciating the beauty outside our own windows, it will probably come as a surprise to learn that she doesn't actually have a window in her own bedroom. But with the views out of other people's she can enjoy whenever she wants to, she surely doesn't mind.

    An Indian movie about two sisters has become a huge hit in China. The Hindi language film, called Dangal, has earned almost $170 million in China since its release there on May 5.

    Much has been written about why Dangal has enjoyed such big success in China. Some people say one reason is that the film's star and producer, Aamir Khan. He is famous in India's Bollywood film industry. Two of his earlier films were also big hits in China.

    Khan's popularity was clear after he got more than 600,000 followers on the Chinese social media service Sina Weibo within two months of joining. But he is not the only reason that the film strongly connects with audience across China. Media has pointed out how it shows similarities between parental systems in China and India.

Dangal is based on the true story of a man who enjoyed the sport of wrestling(摔跤). He competed as a wrestler, but never could achieve his lifelong dream: winning a gold medal. As a father, he wanted his son to win the medal. But his wife only gives birth to daughters. So he finally decides to train them to be world-class wrestlers.

    The movie is more serious than most Bollywood productions, which tell happy love stories and include colorful music and dance performances.

    Edward Chan is a professor at the Hong Kong Polytechnic University. He says the strict way of parenting in the film is something people in China can easily relate to. "I think the father role described by the movie in India is quite to the culture, especially the traditional culture in China."

    The Chinese government supported Global Times newspaper pointed that movie critics (评论家) in China did not like Dangal. Most of them agree with the fact that the father in the film was forceful in pushing his daughters to become wrestlers. But the film Dangal is really aimed to educate children to work for their dreams.