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I'm taking a test and have to guess the right answer to the question after the article. Article: It is common sense that children who walk or cycle to school have a lower risk of obesity than those by car. But driving your youngsters to the gates could also cause their academic work to suffer. Researchers found children who were driven to school, or who took public transport, had poorer concentration levels than those who took a more active route such as walking or cycling. The joint study by researchers at two Danish universities found the regular exercise could advance a student up to half a year in their studies. Children who were driven to school, or who took public transport, performed less well in a test measuring concentration levels, than those who had walked or cycled. The results surprised the researchers, as their hypothesis originally focused on the effects of eating breakfast and lunch on pupils' ability to concentrate. "The exercise one uses to transport oneself to school is reflected in the level of concentration one has about four hours later," Niels Egelund, a co- author of the report said. "The results showed that having breakfast and lunch has an impact, but not very much compared to having exercise." "As a third-grade pupil, if you exercise and bike to school, your ability to concentrate increases to the equivalent of someone half a year further in their studies," he added. In the survey, taken by 19, 527 pupils aged five to 19 years old, participants were asked about their exercise habits and were then given a basic test measuring their concentration. "Most people know the feeling of being refreshed after having exercised, but it is surprising that the effect lasts for so long," Egelund said. Previous research from the university of Montreal has found that exercise helps our brains make better use of oxygen. It may also reduce mental fatigue and sharpen your thinking in between gym sessions. And last week Swedish researchers said they found that muscular boys will live longer than their weaker friends. And even if they are overweight by the time they get to adulthood, those with... Question: Which of the following is NOT the result of the research from the University of Montreal? Options: A: Exercise helps our brain make the most of oxygen. B: Exercise can improve the level of concentration. C: Exercise can make you sharp- minded. D: Exercise can decrease mental fatigue.
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B

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I'm taking a test and have to guess the right answer to the question after the article. Article: Throughout seafaring history, ships and sailors have been lost to storms, accidents and war. Until recently, most of these ships were weak wooden sailing vessel , their skeletons quickly eaten away by sea creatures. Now, large vessels made of steel float on the seas. Thousands of these huge ships have been lost in times of war and in times of peace. The bones of great metal ships, unlike the wooden vessels of old, survive the destruction of the sea long enough to become home and harbor for underwater life of all kinds. Shipwrecks often provide the only hard surface and structure at the sandy bottom of the sea, something many sea creatures need. The ship has been underwater for only five days. Its surface is still clean. Six weeks later, the wreck is covered with a slimy layer of algae , but it is still recognizable as a ship. Soon, animals that need to attach themselves to a hard surface, like the feather duster worms, make the wreck their home. In warm waters, coral polyps settle on the wreck and begin the process of building a rock-like _ on the ship. Small fish are attracted on all of these creatures. Larger fish come to feed on these small fish that hide in the wreckage. Eventually, the largest animals are attracted to the rich life on the shipwreck. Shipwrecks give us valuable information about how sea plants and animals develop. We know exactly how long this wreck has been under water and how long sea life has been growing on it. Yet even the strongest steel shipwreck will finally be destroyed by the flows of water. But long after this wreck has been broken apart, it will still act as a reef . Layer upon layer of sea life has formed a structure that is now more natural than artificial, and will remain an island of life under the sea. Question: What will happen to shipwrecks in the end? Options: A: They will be pulled out of the sea for research. B: They are likely to disappear and form reefs. C: They will become an island under the sea. D: They will be like works of art.
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B

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I'm taking a test and have to guess the right answer to the question after the article. Article: American society is not nap -friendly. In fact, says David Dinges, a sleep specialist at the University of Pennsylvania School of Medicine, "There's even a prohibition against admitting we need sleep". Nobody wants to be caught napping or found asleep at work. To quote a proverb: "Some sleep five hours, nature requires seven, laziness nine and wickedness eleven." Wrong. The way not to fall asleep at work is to take naps when you need them. "We have to totally change our attitude toward napping," says Dr. William Dement of Stanford University, the godfather of sleep research. Last year a national commission led by Dement identified an " _ " which one member said was as important as the national debt. The commission was concerned about the dangers of sleepiness: people causing industrial accidents or falling asleep while driving. This may be why we have a new sleep policy in the White House. According to recent reports, President Clinton is trying to take a ha1f-hour snooze every afternoon. About 60 percent of American adults nap when given the opportunity. We seem to have "a mid afternoon quiet phase," also called "a secondary sleep gate." Sleeping 15 minutes to two hours in the early afternoon can reduce stress and make us refreshed. Clearly, we were born to nap. We Superstars of Snooze don't nap to replace lost shut-eye or to prepare for a night shift.Rather, we "snack" on sleep, whenever, wherever and at whatever time we feel like it. I myself have napped in buses, cars, planes and on boats; on floors and beds; and in libraries, offices and museums. Question: The purpose of this article is to _ . Options: A: warn us of the wickedness of napping B: explain the danger of sleepiness C: discuss the side effects of napping D: convince the reader of the necessity of napping
(Answer)
D