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.
小題1:What's the research really about?
A．Boys and girls.B．Food and weight. C．Sleep and health. D．Screens and fat.
小題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.
小題3:From the sixth paragraph we can infer that ______.
A．girls usually sleep less and have healthier lifestyles than boys
B．the researchers expected to see the same result in girls
C．peoples' diet has a great effect on their health
D．boys are usually lazier than girls
小題4:Who would be the most pleased to hear the news?
A．Teachers.B．Girls.C．Parents. .D．Boys.

小題1:C
小題2:A
小題3:B
小題4:D

試題解析：本文是一項對青少年的關(guān)于睡眠與健康的關(guān)系的調(diào)查，結(jié)果是：睡眠越多越健康（只適合于男孩子）
小題1:C歸納總結(jié)題。根據(jù)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.惠靈頓，九月十九日（新華社）——如果你十幾歲的兒子在早晨不起床，那么你將得到安慰,根據(jù)這個事實他可能正在睡覺以預(yù)示著有著將來更加健康的方式睡覺，根據(jù)來自新西蘭的一項新的研究，所以C正確。
小題2:A細(xì)節(jié)理解題。根據(jù)第三段內(nèi)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.
可知一天睡八個小時的男孩子和睡十個小時的男孩子作比較，腰圍更寬，體重更大，所以Ａ正確。
小題3:B推理判斷題，根據(jù)第六段It was unexpected that we did not find the same result in girls我們沒有在女孩身上看到同樣的結(jié)果，這是沒有預(yù)料到的，可以推斷出Ｂ正確。
小題4:D推理判斷題。通讀全文可以知道調(diào)查研究的結(jié)果是：男孩子睡得多反而更加健康，而女孩子卻沒有這樣的結(jié)果，所以Ｄ正確。
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科目：高中英語 來源：不詳 題型：閱讀理解

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If blood is red, why are veins (靜脈) blue?
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Why do teeth fall out, and why don't they grow back in grown-ups?
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C．The brains of the other mammals are as complex as those of humans.
D．Our feelings and emotions come from the most developed area in our brain.
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科目：高中英語 來源：不詳 題型：閱讀理解

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