WELLINGTON, September 19 (Xinhua) If your teenage son won't get out of bed in the morni

WELLINGTON, September 19 (Xinhua) -- If your teenage son won't get out of bed in the morning, then take comfort from the fact that he might be sleeping his way to a healthier future, according to a new research from New Zealand.
Researchers in human nutrition at the University of Otago have found that teenage boys who sleep less have more body fat when compared to girls, for whom lack of sleep has no noticeable effect on their body fat ratios.
The study of 386 boys and 299 girls aged 15 to 18 found that average-sized 16-year-old boy weighing 69.5 kg and 176 cm tall, who slept for eight hours a day, had a waist size l.8 cm bigger and l.6 kg, or 9 percent, more body fat than the average-sized boy who slept 10 hours a day.
The boys who slept eight hours a day would also have l.8 kg more lean (bone and muscle) mass compared to the boys who slept 10 hours, but that's only a 1.4-percent increase, compared to the 9- percent increase seen in body fat, said lead researcher from the Department of Human Nutrition, Dr. Paula Skidmore.
Our results suggest that for older teenage boys, making sure that they get enough sleep may help to maintain a healthier body. It seems to be that, within reason, the more sleep the better for boys, Skidmore said in a statement Thursday.
It was unexpected that we did not find the same result in girls, who may actually be more aware of their diet and more in tune with a healthier lifestyle.
The researchers ruled out the effects of food choice and number of screens, such as televisions, games and consoles, which the teenagers had in their bedrooms.
【小题1】What's the research really about?A．Boys and girls.B．Food and weight. C．Sleep and health. D．Screens and fat.【小题2】What's the result of less sleep for teenage boys?A．Bigger waist and more fat in the body.B．An increase in weight and height.C．More concerned with their diet.D．A decrease in bone and muscle.【小题3】From the sixth paragraph we can infer that .A．girls usually sleep less and have healthier lifestyles than boysB．the researchers expected to see the same result in girlsC．peoples' diet has a great effect on their healthD．boys are usually lazier than girls【小题4】Who would be the most pleased to hear the news?A．Teachers.B．Girls.C．Parents. .D．Boys.C

(答案→)C 解析：试题解析：本文是一项对青少年的关于睡眠与健康的关系的调查，结果是：睡眠越多越健康（只适合于男孩子）【小题1】C归纳总结题。根据第一段WELLINGTON, September 19 (Xinhua) -- If your teenage son won't get out of bed in the morning, then take comfort from the fact that he might be sleeping his way to a healthier future, according to a new research from New Zealand.惠灵顿，九月十九日（新华社）——如果你十几岁的儿子在早晨不起床，那么你将得到安慰,根据这个事实他可能正在睡觉以预示着有着将来更加健康的方式睡觉，根据来自新西兰的一项新的研究，所以C正确。【小题2】A细节理解题。根据第三段内容The study of 386 boys and 299 girls aged 15 to 18 found that average-sized 16-year-old boy weighing 69.5 kg and 176 cm tall, who slept for eight hours a day, had a waist size l.8 cm bigger and l.6 kg, or 9 percent, more body fat than the average-sized boy who slept 10 hours a day.可知一天睡八个小时的男孩子和睡十个小时的男孩子作比较，腰围更宽，体重更大，所以Ａ正确。【小题3】B推理判断题，根据第六段It was unexpected that we did not find the same result in girls我们没有在女孩身上看到同样的结果，这是没有预料到的，可以推断出Ｂ正确。【小题4】D推理判断题。通读全文可以知道调查研究的结果是：男孩子睡得多反而更加健康，而女孩子却没有这样的结果，所以Ｄ正确。

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