Most people say “yes” much more readily than “no”.

    A friend is moving house this weekend and would like some help, and you agree. But, what you really wanted was a couple of quiet days relaxing at home. Or a roommate spends the entire weekends playing video games and wants to borrow your homework for “reference”. But, you've just finished it after taking a whole day to work hard.

    Many people say “yes” to those kinds of requests. They tend not to consider their own interests and feelings, and are often angry with themselves afterwards.

    Saying “no” requires courage and considerable practice, in fact, according to psychologists.

    “Everyone wants to be liked,” says Gabriel Steinki, a German psychologist. “Saying ‘no' risk losing the affection of the person asking the favor or even a job.”

    The result is that many people say “yes” just for keeping the peace. But experts say this is regrettable. Anyone should have the right to say “no”.

    In fact, rejecting a request can even help to strengthen a relationship because it expresses a true feeling.

    But, for people used to agreeing to every request, changing can be a long and uncomfortable learning process.

    Most people believe that “If I say ‘no', I'll lose the affection of the person. But the affection is important to me.” This way of thinking can be replaced by this “If he only likes me because I always do what suits him, then the price of his affection is too high in the long term.”

    Steinki says the key is talking to the other person to find a mutual(相互的) solution. “One needs to present the situation from one's own point of view, and to suggest how the situation can be dealt with to the advantage of both parties. The other person must have the feeling that his interests are being considered.”

    When the refusal is not accepted, Steinki advises giving the reasons calmly again until the person gets the message.

    The Chinese word "Shanzhai" means a small mountain village, but now it becomes an accepted name for fakes (假货), after "Shanzhai Cell-phones" produced by small workshops in southern China became popular in the mainland market over the past two years. Besides (除……之外，还有)"Shanzhai" electronic products, there are "Shanzhai" movies, "Shanzhai" stars and even a "Shanzhai" Spring Festival Gala, a copy of the 25-year-old traditional show presented by CCTV on Chinese Lunar New Year's Eve.

    "Shanzhai" has become a culture of its own, meaning anything that imitates something famous. In Chongqing, "Shanzhai" version "Bird's Nest（鸟巢）" and "Water Cube（水立方）" woven by farmers with bamboo attract(吸引) wide attention from tourists. Both are copies of the famous Olympic buildings in Beijing.

    A literature critic said that taking the "Shanzhai" Gala as an example, when the traditional CCTV program becomes less and less attractive to the audience, the "Shanzhai" version appears timely to attract people. "Although it is often connected with poor techniques and operation, 'Shanzhai' culture meets the psychological needs of common people and could be a comfort to their minds," he said.

    To the mainstream（主流） culture, the rise of "Shanzhai" culture is a challenge and a motivation（推动）. People believe different kinds of cultures developing together is a perfect way and it is for the public to choose.

    Having a learning disability doesn't mean you can't learn, but you'll need some help and need to work extra hard. If you have a learning disability such as dyslexia or dyscalculia, remember that you are not slow or stupid.

    Learning disabilities can be genetic. That means they can be passed down in families through the genes. But kids today have an advantage over their parents. Learning experts now know a lot more about the brain and how learning works, and it's easier for kids to get the help they need.

    Dyslexia is a learning disability that means a kid has a lot of trouble reading and writing. Kids who have trouble with math may have dyscalculia. Other kids may have language disorders, meaning they have trouble understanding language and understanding what they read.

    It can be confusing, though. What qualifies as “trouble" enough to be diagnosed as a learning disability? Reading, doing math, and writing letters may be tough for lots of kids at first. But when those troubles don't fade away and it's really difficult to make any progress, it's possible that the kid has a learning disability.

    Finding out you have a learning disability can be upsetting. You might feel different from everyone else. But the truth is that learning disabilities are pretty common. And if your learning specialist or psychologist has figured out which one you're facing, you're on the right track. Now, you can start getting the help you need to do better in school.

    But for this special help to really work, you'll need to practice the new skills you're learning. It may take a lot of efforts every day. That can be a challenge, but you can do it soon, you'll enjoy the results of all your hard work: more fun and success at school.

Dear Maya Shao­ming,

    To me, June 6, 1990 is a special day. My long­awaited dream came true the minute your father cried, "A girl！"You, little daughter, are the link to our female line, the legacy of another woman's pain and sacrifice 31 years ago.

    Let me tell you about your Chinese grandmother. Somewhere in Hong Kong, in the late fifties, a young waitress found herself pregnant(怀孕) by a cook. She carried the baby to term, suffered to give it birth, and kept the little girl for the first three months of her life. I like to think that my mother—your grandmother—loved me and fought to raise me on her own, but the daily struggle was too hard. Worn down by the demands of the new baby and perhaps the constant threat of starvation, she made the painful decision to give away her girl so that both of us might have a chance for a better life.

    Having a baby in her unmarried state would have brought shame on the family in China, so she probably kept my existence a secret. Once I was out of her life, it was as if I had never been born. And so you and your brother and I are the missing leaves on a family tree.

    Do they ever wonder if we exist?

    Before I was two, I was adopted by an Anglo couple. I grew like a wild weed and grasped all the opportunities they had to offer—books, music, education, church life and community activities. In a family of blue­eyed blonds, though, I stood out like a sore thumb. Moody and impatient, burdened by fears that none of us realized resulted from my early years of need, I was not an easy child to love. My mother and I conflicted countless times over the years, but gradually came to see one another as real human beings with faults and talents. Lacking a mirror image in the mother who raised me, I had to seek my identity as a woman on my own. The Asian American community has helped me regain my double identity.

    But part of me will always be missing: my beginnings, my personal history, all the delicate details that give a person her origin. Nevertheless, someone gave me a lucky name "Siu Wai". "Siu" means "little", and "Wai" means "clever". Therefore, my baby name was "Clever little one". Who chose those words? Who cared enough to note my arrival in the world?

    I lost my Chinese name for 18 years. It was Americanized for convenience to "Sue". But like an ill­fitting coat, it made me uncomfortable. I hated the name. But even more, I hated being Chinese. It took many years to become proud of my Asian origin and work up the courage to take back my birth name. That, plus a little knowledge of classroom Cantonese, is all the Chinese culture I have to offer you. Not white, certainly, but not really Asian, I try to pave the way between the two worlds and bridge the gap for you. Your name, "Shao­ming", is very much like mine—"Shao" means "little". And "ming" is "bright", as in a shining sun or moon. Whose lives will you brighten little Maya? Your past is more complete than mine and each day I cradle you in your babyhood, generously giving you the loving care I lacked for my first two years. Sweet Maya, it doesn't matter what you "become" later on. You have already fulfilled my wildest dreams.

    I love you,

Mummy

    Philadelphia offers a ton of attractions that are suitable for people of every age and here are some family—friendly attractions.

    Spruce Street Harbor Park

    Spruce Street Harbor Park, one of the best urban beaches in America, is an outdoor heaven on the Delaware River waterfront. Visitors can relax in a hammock, play on the playgrounds, and play games like table tennis and giant chess. Don't miss out on the park at night, when colorful LED lights hanging from treetops make the entire area bright.

    Blue Cross River Rink

    Offering ice skating in the winter and roller skating in the summer, Blue Cross River Rink creates a fun, outdoor experience for the whole family. Visitors can play on the nine-hole mini-golf course during the summer, and enjoy eats and drinks from the on-site(现场的)bar and restaurant all year round.

    Sesame Place

    Big Bird, Elmo and the other stars of Sesame Street come out and play at Sesame Place, the only theme park in the nation starring the popular TV show's most lovable characters. A water park, interactive activities, parades, fireworks and shows add to the fun.

    Once Upon a Nation Storytelling Benches

    On summer days, uniformed and professional storytellers at 13 storytelling benches throughout Philadelphia's Historic District entertain visitors with true, free, three-to-five minute tales about the colonial(殖民的)era as part of Once Upon a Nation. Children can pick up a Story Flag at any storytelling bench, and then collect a star from every storyteller on their journeys. Flags with all the stars can get free rides on the Parx Liberty Carousel at Franklin Square.

    As global temperatures rise, trees around the world are experiencing longer growing seasons, sometimes as much as three extra weeks a year. All that time helps trees grow faster. For the past 100 years, trees have been experiencing fast growth in temperate regions from Maryland to Finland, to Central Europe, where the growth rate of some trees has even sped up nearly 77% since 1870. Assuming wood is just as strong today, those gains would mean more timber(木材) for building, burning, and storing carbon captured from the atmosphere. But is wood really as dense as it used to be?

    Hans Pretzsch, a forest scientist at the Technical University of Munich in Germany, and his colleagues wanted to find an answer. They carried out a study of the forests of Central Europe. They started with 41 experimental plots in southern Germany, some of which have been continuously monitored since 1870. Pretzsch and his team took core samples from the trees—which included Norway spruce, sessile oak, European beech, and Scots pine—and analyzed the tree rings using a high-frequency probe.

    They found that in all four species, wood density has decreased by 8% to 12%, they report online in Forest Ecology and Management. “We expected a trend of the wood density like this, but not such a strong and significant decrease,” Pretzsch says. Increasing temperatures, and the faster growth they spur, probably account for some of the drop. Another factor, Pretzsch says, is more nitrogen in the soil from agricultural fertilizer(化肥) and vehicle exhaust. Previous studies have linked increased fertilizer use to decreased wood density. Above all, the study suggests that the higher temperatures—combined with pollution from auto exhaust and farms—are making wood weaker, resulting in trees that break more easily and wood that is less durable.

    “I am getting worried,” says Richard Houghton, an ecologist at the Woods Hole Research Center in Falmouth, Massachusetts, who was not part of the new study. As the density of the samples dropped, so did their carbon content, by about 50%. That means forests may suffer more damage from storms and may be less efficient at soaking up the greenhouse gas carbon dioxide (CO2) than scientists had thought, Houghton says.