(Q).
Read the article and select the best answer. Article: Air traffic controllers in the US have been advised to take 26-minute naps , after a series of accidents involving workers falling asleep. Now the National Transportation Safety Board (NTSB) is calling for "controlled naps" during nightshifts . NTSB member Mark Rosekind said that a 26-minute nap would improve performance by 34%. He believes that beyond the aviation industry, other professions, such as motoring and machinery, also carry obvious risks. But other experts doubt whether 26 minutes is the appropriate napping time. It's a bit too long and risks you falling into a deep sleep, says Jim Horne, director of the Sleep Research Council. He said, "A nap of about 15 minutes is best; once you get beyond 20 minutes, you risk a deep sleep and you can be much more tired when you wake up. Therefore, we suggest that a nap be combined with a cup of coffee so that you can enjoy an effective sleep before the caffeine takes effect in 20 minutes. However, this method only works on those who have had a poor night's sleep. If you haven't had a sleep the night before, this method won't be enough to make you fresh." Health writer, Linda Wasmer Andrews, also believes that 26 minutes is too long. She says a nap between 10 and 20 minutes is enough, and the timing of the nap is also important. Putting your head down too early means your body may not be ready to sleep yet, but a nap that is too late in a day might make it harder to fall asleep. Early afternoon is often the best time, between l pm to 3pm, when people experience a post-lunch decrease in energy. Question: What does the text mainly talk about? Options: A: People who need a nap. B: How long a nap should last. C: When people should take a nap. D: The reason why people need a nap.
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B

(Q).
Read the article and select the best answer. Article: When 47yearold volunteer Susan Boyle stepped onto the stage of Britain's Got Talent and announced she was unemployed, had never been married and "never been kissed, actually", few in the audience would have wondered why. This Ms Boyle, looking unfashionable, from a village in Scotland, shocked the three judges and the audience with the song I dreamed a dream on a show of Britain's Got Talent. She couldn't hide the awkwardness when walking to the center of the stage in a house dress, and everyone -- including the judges -- seemed laughing at her when she said she wanted to be as successful as Elaine Paige. As soon as she began singing, however, everyone in the hall fell silent, then rose within seconds to admire her wonderful voice as the celebrity judges sat openmouthed, and remained standing to the end. After her performance, one of the judges Piers Morgan said,"Without doubt that was the biggest surprise I've had in three years of this show. When you stood there everyone was laughing at you. No one is laughing now. That was amazing." Actress Amanda Holden followed,"I'm so thrilled because I know that we everybody were against you. I honestly think that we were all being very cynical and I think that's the biggest wakeup call ever." Susan obviously won over the hearts of millions around the world with success spreading across the Atlantic. Hollywood actor Ashton Kutcher, who has nearly 1.5 million followers, speaks highly of her. Kutcher posted a link to the video clip . The Scottish talent made her live American show via satellite connection on CBS's The Early Show, doing an interview and singing live from her room. And she already accepted an invitation from talk show hostess Oprah Winfrey. Now Boyle has become one of the world's hottest celebrities. The video clip of her performance has been viewed more than 50 million times on Youtube, becoming a hit on the Internet. Question: We learn from the passage that Susan Boyle _ . Options: A: rose from a low social class B: had an unhappy marriage C: lived with a dog alone on a farm D: won the championship in the Britain's Got Talent show
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A

(Q).
Read the article and select the best answer. Article: Ice Hotel Quebec, located 30 minutes west of Downtown Quebec City, Canada, is only open during the winter season. The hotel is made entirely of ice. The two galleries at the Ice Hotel Quebec feature events such as ice painting and ice sculpture competitions. Things to Do Guests have a choice of different winter vacation activities, including cross-country skiing, ice skating, dog sledding , ice fishing and sliding . Ice Hotel Quebec has a sauna( ),so remember to pack your bathing suit. Rooms & Suites The hotel offers 18 rooms and 14 theme suites built from 12,000 tons of snow and 400 tons of ice. The walls at Ice Hotel Quebec are four feet thick and allow the hotel to keep a temperature of -2degC to -5degC. The furniture at the hotel is made of snow and ice, including the beds. The beds are equipped with a thick foam mattress and an extra thick sleeping bag. That is enough to prevent you from catching a cold. Vacation Tip Ice Hotel Quebec offers 30-minute guided public tours daily from 10:30am to 4:30pm. It costs $15 CAD for adults, $7.5 for children (under eight), $13for students\seniors (above sixty), and $42 for families. Plan This Vacation Ice Hotel Quebec-Canada will be open for its sixth season from January 5thto April 1st. Costs for overnight stays start at $199CAD per person. If you're looking for something really different to do on your next trip, think creatively and plan to visit the truly unusual Ice Hotel Quebec! Question: If Mr. Smith attends a 30-minute public tour with his wife and seven-year-old twin sons, he should pay at least _ . Options: A: $37.5 CAD B: $45 CAD C: $42CAD D: $199 CAD
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C