Making and Keeping Friends Is More than Child's Play

    When 6-year­-old Rachel returned to school on a recent Monday morning, her eyes immediately scanned the playground for her friend Abbie. “Though they were only separated by a weekend, the girls ran right into each other's arms and hugged,” recalls Rachel's mother Kathryn Willis of Gilbert. “It was like a scene from a movie.”

    Most parents instinctively (本能地) know that having friends is good for their child. Experts agree that friendship isnot simply child's play, but a powerful predictor of social adjustment throughout life.

A Skill for Life

  “Childhood friendships serve as a very important training ground for adulthood,” says Dr. Robbie Adler­Tapia, psychologist with the Center for Children's Health & Life Development at the East Valley Family Resource Center.

    Researcher William Hartup states,“Peerrelations contribute significantly to both social and cognitive (认知的) development.” Hartup concludes that the single best childhood predictor of adult social adaptation is not school grades or classroom behavior, butrather, how well a child gets along with other children.

    The work of Arizona State University professor of Developmental Psychology Gary Ladd proves that just as being ableto make and keep friends is beneficial to kids while the lack of friends is detrimental.

Good Friendships Don't Just Happen

    Experts agree that it is essential forchildren to establish high­quality friendships. But, researchers warn, these friendships don't necessarily just happen. Often, a good friendship begins with involvedparents.

    Psychologist Dr. Lynne Kenney Markan believes kids should be taught social skills in much the same way they are taught math and reading.

Bad Company

Many parents worry about the quality aswell as the quantity of their child's friendships. “When she was in 1st grade, her supposed ‘best friend' began calling her names and threatening to hurt her,”says Mindy Miller. “My daughter wasn't allowed to talk to or even look at other girls in her class. It really crushed her spirit. I told my daughter she didn't need a ‘friend' like that.”

    “I'll bend over backwards(拼命) to help my son get together with a friend I think is good for him,” Adler­ Tapiasays. “I don't look at it as manipulation (操纵)，just positive parental involvement.”

    Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!

    Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. "Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground." I asked. "We are too far from the earth now to feel its pull, " he explained, "so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's. " I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.

    When we got there, I wanted to explore immediately. "Come on," I said. "If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!" I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. "Oh dear," I cried, "walking does need a bit of practice now that gravity has changed." After a while I got the hang of it and we began to enjoy ourselves.

    Ali, the boxing legend, died on Friday night at 74，after a Long battle with Parkinson's disease.

    Cassius Clay (Ali) was just 12 years old in 1954 when he got ready to beat the boy who stole his bicycle in his hometown of Louisville, Ky. But a local policeman warned him that he'd need to learn to box first. At just 89 pounds, Clay had his first fight and his first win just weeks later, according to Bleacher Report. By 1964, he was the heavyweight champion of the world, alter upsetting Sonny Liston.

    In 1969, he was forbidden to do boxing over his refusal to join the army and go to Vietnam. Ali was reportedly drowning in debt and still appealing his conviction(上诉).He made pocket change by touring colleges to discuss the war, and, as Playbill points out, he starred in the Broadway musical, Buck White.

Ali sang nearly every song in the musical, playing a black lecturer addressing a meeting organized by a black political group. But he would never return to the stage after his conviction was cancelled.

    In November 1990, Ali met with Iraq president Saddam Hussein in Baghdad on a "good-will tour" in an attempt to negotiate the release of 15 Americans held hostage(人质)in and Kuwait.  Ali was criticized by then-President George H. W, Bush and The New York Times, both of whom expressed concerns that he was fueling propaganda (宣传) machine.

    Despite running out of medicine for his disease and waiting more than a week to talk to Hus-rein, Ali was able to bring all 15 of a group of American war prisoners home.

    The Silk Road is a name given to the many trade routes that connected Europe and the Mediterranean（地中海）with the Asian world. The route is over 6,500 km long and got its name because the early Chinese traded silk along it. Although silk was the main trading item, there were many other goods that travelled along the Silk Road between Eastern Asia and Europe. In the course of time, medicine, perfumes, spices and livestock（家畜）found their way between continents.

    The Chinese learned to make silk thousands of years ago. For a long time they were the only ones who knew how to make this precious material. Only the emperor, his family and his highest advisers were allowed to wear clothes made of silk. For a long time the Chinese guarded this secret very carefully. The ancient Romans were the first Europeans who became aware of this wonderful material. Trading started, often with Indians as middlemen（中间人）who traded silk with the Chinese in exchange for gold and silver which they got from the Romans.

    Travelling along the route was dangerous. The hot desert, high mountains and sandstorms made traveling a rough business. Most of the goods along the Silk Road were carried by caravans（商队）. Traders sometimes brought goods from one destination on the silk Road to another, from where the goods would be transported by someone else. Over the centuries people settled along the ancient route and many cities emerged. Later on there were fewer hardships to overcome, but by no means was it easy.

    Religion, languages and diseases also spread along the Silk Road. Buddhism, which originated in India, spread to China along this route. European traders probably brought the plague from Asia to Europe along the ancient road.

    In the early Middle Ages, traffic along the route decreased because of the decline of the Roman Empire. Trading along the Silk Road became stronger again between the 13th and 14th centuries, when the Mongols controlled central Asia. During the Age of Exploration the Silk Road lost its importance because new sea routes to Asia were discovered.

    Scientists around the world are striving for effective detection of cancer in the early stages, which is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body, and a Chinese scientist may have found a quick way of knowing whether malignant tumors (恶性肿瘤) exist in a patient's body, with just one drop of blood.

    Malignant tumors in early phases can be cured. However, it's extremely difficult to be aware of cancer in its early stages, as patients don't show obvious symptoms and thus it can only be found in its later stages, which is already too late, so to detect cancer early remains a global challenge for scientists.

    Back in 1989, scientists have found a kind of heat shock proteins (HSP), named Hsp90α, which existed in human bodies and can be used as a cancer biomarker detection kit. Scientists around the globe have been working on it since then, and more than 10, 000 journals have been published on accredited magazines, yet no one has actually turned their research results into medical products.

    However, Luo Yongzhang and his team in Tsinghua University's School of Life Sciences in Beijing seemed to have cracked the code, after working on the problem since 2009.The team has produced an artificial Hsp90α protein for clinical use that gains structural stability by regrouping proteins. The test kit can diagnose multiple kinds of cancer by analyzing a drop of human blood. This means they are able to "create" the protein, in any quantity, and at any time they wish to.

    The kit has since been used in clinical trials involving 2, 347 patients at eight hospitals in China. It was the first clinical trial in the world to test if the protein could be a useful tumor biomarker for lung cancer, and it succeeded. Now, the kit has been approved to enter the Chinese and European markets, 24 years after Hsp90α was discovered.

    Only about 30 percent of people in the US know how to perform CPR (心肺复苏术). Recently, a 9-year-old boy showed a Georgia woman how to perform CPR on her newborn baby.

    Susanna Rohm said she had experienced a parent's worst nightmare (噩梦) — her 2-month-old son, Isiah, was not breathing. "I noticed he looked pale. I looked at his arms and his legs and they were limp (无力的)," Rohm told a local newspaper. "Then I noticed that he looked like he wasn't alive." Indismay, she dropped and broke her cellphone. Rohm had to run into the street, screaming for help.

    "I had him in my arms and screamed over and over. Then I ran outside. I saw two boys playing across the street, and I yelled, 'Go and ask your parents to call 911,'" Rohm said. But the two boys were able to do more than that. Nine-year-old Ethan Wilson took action, showing Rohm how to perform CPR on little Isiah while ten-year-old Rocky Hurt helped as well.

    Rocky said he had learned the CPR technique from a poster in a health class at their school, Sedalia Park Elementary. "I was thinking we'd better give her a helping hand instead of getting scared," Ethan said. "I told her to push on the baby's chest five to ten times a minute with only two fingers, tilt back the baby's head, plug the baby's nose and breathe into the baby's mouth," Ethan said in an interview.

    At last, Isiah began crying and was breathing again. He spent two nights in a local hospital. "If the little boy hadn't shown me what to do right there, my baby would probably not be alive right now," Rohm said.