Read the following article and select the best answer. Article: Astronauts aboard the space station celebrated a space first on Wednesday by drinking water that had been recycled from their urine , sweat and water got from air. They said "cheers," clicked drinking bags and toasted NASA workers on the ground. The urine recycling system is needed for astronaut stations on the moon and Mars. It also will have NASA money because it won't have to ship up as much water to the station by space shuttles or cargo rockets. Besides, it's important as the space station is about to expand from three people living on board to six. The recycling system had been brought up to the space station last November by space shuttles Endeavour, but it couldn't be used until samples were tested back on earth. So when it came time to actually drink up, NASA made a big deal of it. The three-man crew stood holding their drinks and congratulated engineers in two NASA centres that worked on the system. "This is something that had been the stuff of science fiction," American astronaut Michael Barratt said before taking a small mouthful. "The taste is worth trying." The new system takes the combined urine of the crew from the toilet, moves it to a big tank, where the water is boiled off, and the vapor is collected. The rest of the urine is thrown away. Then the water vapor is mixed with water from air, and then it goes through filters . When six crew members are aboard it can make about six gallons from urine in about six hours. "Some people may find the idea of drinking recycled urine distasteful, but it is also done on earth, but with a lot longer time between urine and the tap," said Marybeth Edeen, the space station's national lab manager. The technology NASA developed for this system has already been used for quick water purification after the 2004 Asian tsunami. Question: According to the text, the recycling system is important because _ . - it makes traveling to the moon for the average person possible - with it NASA won't need to ship any water up the space station - it can help meet the need for more water after the crew is expanded - it protects the environment in space by reducing the amount of waste
it can help meet the need for more water after the crew is expanded

Read the following article and select the best answer. Article: At the age of 11, Peter Lynch started caddying at Brae Burn Country Club in Newton, Mass. "It was better than a newspaper carrier, and much more profitable," the Fidelity vice chairman recalls. He kept it up during the summers for almost a decade. "You get to know the course and can give the golf players advice about how to approach various holes," he says. "Where else, at age 15 or 16, can you serve as a trusted adviser to high-powered people?" One of those people was George Sullivan, then president of Fidelity's funds, who was so impressed with Lynch's smarts that he hired him in 1966. "There were about 75 applicants for 3 job openings," Lynch says now. "But I was the only one who had caddied for the president for 10 years." In between caddying and managing money, Lynch went to Boston College on a scholarship from a program called the Francis Ouimet Fund. Named after the 1913 winner of the U.S. Open, the fund launched in 1949 which is open to Massachusetts kids only. Ouimet executive director Robert Donovan says, "Help with college is a logical extension of friendly relation between golfers and their favorite caddies, because there is a close tie to train up them to be excellent that happens between the players and the kids who carry their golf poles. And for the teens, caddying is all about being around successful role models." It is obvious that caddies who are finally successful include all kinds of outstanding personnel, from actor Bill Murray, to New York Times columnist Thomas Friedman, to former GE chairman and CEO Jack Welch. Of course, the great number of financial giants who caddied in their youth might be coincidence, but Dick Connolly thinks not. "Caddying life teaches you a lot about business, and about life," he says. "You learn to show up early and look people in the eye when you shake their hand, and you learn how to read people -- including who's likely to cheat and who isn't." Connolly is a longtime investment advisor at Morgan Stanley's Boston office, a former Ouimet scholarship student... Question: According to Dick Connolly, caddying experience in your youth _ . - helps you learn to live with loneliness - teaches you a lot about business and life - makes it possible to meet with great people - offers you chances to communicate with others
teaches you a lot about business and life

Read the following article and select the best answer. Article: People who speak or perform before the public sometimes may suffer from "Stage Fright. " Stage fright makes a person nervous. In the worst case it can make one's mind go back and forget what one ought to say, or to act. Actors, musicians, dancers, lawyers, even radio show hosts have suffered from stage fright at one time or another. Diana Nichols is an expert in helping people free from stage fright at a medical centre in New York City. She helps actors learn to control themselves. Miss Nichols says some people have always been afraid to perform before the audience. Others, she says, develop stage fright after a fearful experience. She offers them ways to control the fear. One way is to smile before going onto the stage. Taking two deep breaths also helps. Deep breathing helps you get control of your body. Miss Nichols persuades her patients to tell themselves that their speech or performance does not have to the perfect. It's all right to make a mistake. She tells them they should not be too cautious while they are performing. It is important that they should continue to perform while she is helping them. After each performance, they discuss what happened and find out what advice helped and what did not. As they perform more and more, they will fear less and less as much as 50%. Miss Nichols says the aim is only to reduce stage fright, not to _ it completely. This is because a little stage fright makes a person more cautious, and improves the performance. Question: One who is suffering stage fright may _ . - forget one's part before the audience - smile all the time on the stage - make a speech faster than ever - be cautious to improve his performance
forget one's part before the audience