I went to the Tsavo National Park in northern Kenya for a film. We set off early for a distant water hole. A huge elephant covered with dry mud, drank calmly and deeply. He might have traveled 50 km to reach the water. He wasn't going to hurry now. We thought he'd drink a while and rest in the shade, and then drink again. What actually happened was that he drank deeply and stepped away. Then he suddenly fell down. Within minutes he was dead.

    We called animal doctor Jeremiah Poghon immediately. He removed the head of a poisonous arrow (箭) from the elephant's body, and let out over 100 liters of drug—the result of the elephant's meeting with a poacher (偷猎者) months before.

    Today's poacher fires an arrow, covered with poison, into the body of an elephant. If the poacher is lucky, the elephant might die in an hour or two; if not, he might have to follow the elephant for days before it dies. Often the arrow head fails to kill the elephant at once—it doesn't mean the poison won't finally kill the elephant, but it will be a slow death.

    Living in Tsavo through these times, I could see the results of poaching from time to time. When I think about the death of that elephant, what stays with me is the great silence after the shocking sound of his body hitting the ground. I couldn't escape the feeling that with the death of such a large animal, the world seemed to be a poorer and emptier place.

    There is an English saying that goes,“he who laughs last laughs the hardest.”High School Musical star Zac Efron is laughing a lot these days.

    {#blank#}1{#/blank#} Because he was always the smallest in his class and was laughed at because he had a big space between his teeth. In sixth grade, Efron's basketball team made it to be the league championships. In double overtime(两个加时赛),with three seconds left, he rebounded the ball and passed it to the wrong team! {#blank#}2{#/blank#}.

    {#blank#}3{#/blank#} Now at 21,Efron is one of People Magazine's 100 Most Beautiful People, graces(荣登)the cover of Entertainment Weekly Hollywood's most influential magazine, and is travelling the world promoting the third High School Musical film. Director Adam Shankman described Efron as “arguably the biggest teen star in America right now” Simply google “Zac Efron”, and you get more than 14 million responses. Yes, it seems Efron has a lot to smile about these days.

    Efron was born and raised in California. {#blank#}4{#/blank#} According to Efron,“he would flip out(发疯) if he got a B and not an A in school, and that he was a class clown.”It was his father who encouraged him to act. {#blank#}5{#/blank#} He also took singing lessons. He graduated from high school in 2006 and was accepted at the University of Southern California to study film. But he put it off —why study movies when you can star in them. Efron has risen all the way to the top of the movie business. And he can now laugh all the way to the bank.

A. He owed it a lot to his father that he succeeded.

B. But history, as they say, is a thing of the past.

C. He took part in school performances and acted in a local theater.

D. When he was young, Efron was an unqualified basketball player.

E. He took school seriously.

F. They scored and his team lost the game.

G.As a young boy, Efron was picked on by his classmates.

    Australia's koalas could die out within 30 years unless immediate action is taken to stop the losing in population, according to researchers. They say development, climate change and bushfires have all combined to reduce the number of wild koalas sharply.

    The Australian Koala Foundation said a recent survey showed the population could have dropped by more than half in the past six years. The number of koalas was once estimated to be more than 100,000, but now is as few as 43,000.

    The foundation collected field data from 1,800 sites and 80,000 trees to calculate the numbers. In one area in northern Queensland estimated to have 20,000 koalas a decade ago, a team of eight people could not find a single animal in four days of searching.

    The foundation said besides problems caused by cutting down forests, hotter and drier conditions because of global warming had reduced the nutritional value of their main food, eucalyptus (桉树) leaves, leading to poor nutrition for them. Koalas, which live in the forests in Australia's east and south, are very picky about what types of the leaves they eat.

    Foundation chief Deborah Tabart said: “The koalas are missing everywhere we look. It's really no tree, no me. If you keep cutting down trees you don't have any koalas.”She is hoping the new figures will persuade the government's Threatened Species Steering Committee (TSSC) to list the koala as threatened. But committee chairman Bob Beeton said a decision was not likely recently and the koala's status as one of the country's favorite animals would not be a factor. “There's a number of species which are attractive and people have special feelings towards them. We don't consider that,” Mr Beeton said.

    A few years ago, my wife, Sue had some serious health problems. She had suffered surgery after surgery and had also put on weight. Diets had not helped her and she suffered constantly from undiagnosed pain. One day the whole family sat down and drew up a “wish list”. To our surprise, one of Sue's items was to run in a marathon. Given her history and physical limitations, I thought her goal was completely unrealistic, but Sue became committed to it.

    She began by running very slowly and every day she ran just a little farther than she did the day before. Soon she could run three miles. Then five. Sue kept practicing and longed to run in the St. George Marathon in southern Utah.

    On the big day, I parked our van near the finish line, waiting for Sue. The rain was steady and the wind was cold. The marathon had started over five hours ago. The fast and strong competitors had finished already. Several cold and injured runners had been transported past me, and I began to panic. The image of Sue, alone and cold, off the road somewhere, made me sick with worry.

    Another hour passed and I spotted a small group running up. As they approached, I could see Sue, in the company of three others, and a woman in her twenties was near Sue. It was obvious that they had become friends during the race. I could see her begin to struggle. But when the finish line came into sight, she confidently even happily picked up her pace the last hundred yards to the finish line. Few people were left to congratulate my wife. They openly praised and embraced her, “She made us believe we could do it,” her new friend stated.

    From then on, she was carrying herself differently. Her head was more upright. Her shoulders were squared. Her walk had a new confidence. Her voice held a new, quiet dignity. It was not as if she had become someone new; it was more as if she had discovered a real self she had not known before. It was perseverance that made her realize she was an undiscovered masterpiece with a million things left to learn about herself. She truly liked her newly discovered self. So did I.

    For years, there has been a prejudice against science among clinical psychologists (临床心理学家). In a two-year analysis to be published in November in Perspectives on Psychological Science, psychologists charge that many clinical psychologists fail to “provide the treatments which are given the strongest evidence of effectiveness” and “give more weight to their personal experiences than to science.” As a result, patients have no guarantee that their “treatment will be informed by science.” Walter Mischel of Columbia University is even crueler in his judgment. “The disconnect between what clinical psychologists do and what science has discovered is an extreme embarrassment,” he told me, and “there is a widening gap between clinical practice and science.”

    The “widening” reflects the great progress that psychological research has made in identifying the most effective treatments. Thanks to strict clinical trials, we now know that teaching patients to think about their thoughts in new, healthier ways and to act on those new ways of thinking are effective against depression, panic disorder and other problems, with multiple trials showing that these treatments the tools of psychology bring more lasting benefits than drugs.

    You wouldn't know this if you sought help from a typical clinical psychologist. Although many treatments are effective, relatively few psychologists learn or practice them.

    Why in the world not? For one thing, says Baker from the University of Wisconsin, clinical psychologists are “very doubtful about the role of science” and “lack solid science training”. Also, one third of patients get better no matter what treatment (if any) they have, “and psychologists remember these successes, believing, wrongly, that they are the result of the treatment.”

    When faced with evidence that treatments they offer are not supported by science, clinical psychologists argue that they know better than some study that works. A 2008 study of 591 psychologists in private practice(诊所) found that they rely more on their own and colleagues' experience than on science when deciding how to treat a patient. If they keep on this path despite the fact that insurance companies demand evidence-based medicine, warns Mischel, psychology will “discredit itself.”

    Five-year-old Prisilla Perez, a student at Meador Elementary School in Willis, was unhappy with her recent haircut, which resulted from a severe disease. When students in her class started calling Prisilla a boy, she felt ashamed, often crying and losing focus in school.

    Her teacher, Shannon Grimm, sympathized with her unhappiness. Grimm and Prisilla's mom were concerned, but their ideas didn't work. “We had classroom discussions about how girls have short hair and boys have long hair, and I showed them photos of movie stars with different looks,” Grimm said. “However, it wasn't sinking in.”

Grimm thought about Prisilla throughout winter break, and one morning, she had an idea: Cut off her hair — a scary thought for Grimm, who wore her hair long and took pride in it. “I've never had short hair, and I stressed about it for two weeks before making a decision,” she said. On Jan. 4, Grimm invited a hairstylist friend to her home. “I told him to keep going, even if I cried,” she said.

    The class loved their teacher's new do, especially Prisilla, who excitedly ran off the school bus that afternoon yelling, “Mom, Ms. Grimm cut her hair!” The teacher also bought matching bows for herself and the girl, so they could style their hair together.

    In February, the teacher recommended Prisilla for the school district's Student of the Month Award, but during the Monday ceremony, she received a surprise “hero medal” from the girl. “Now we have matching awards,” says Grimm.

Prisilla's mother, Maria, said that Grimm's thoughtfulness brought her to tears. “I was shocked. I was crying. I couldn't believe it — she did something I wouldn't have the bravery to do. I will never forget that.”