题目内容

【题目】

If you can’t seem to catch enough Z’s during the week, you’re not alone. But bad things happen to your body when you’re sleep-deprived, not least of which is weight gain. Well, here’s some good news: Sleeping in on the weekend to make up for sleep lost during the week is 1 with lower body mass index (BMI), according to a study published in the Oxford University Press journal Sleep.

The researchers, a collaboration of scientists based in Boston, Massachusetts, and the Republic of Korean, sought to determine if what they refer to as “catch-up sleep”2 body mass index (BMI) in the general population. To do so, they conducted face-to-face interviews of a random sampling of 2,156 adults, comparing their sleep habits with their BMI scores. The 932 participants who slept in – “catch-up sleepers” (people who sleep longer on the weekend than on weekdays by approximately two hours) had a(n)3lower BMI than the other subjects. What’s more, every additional hour of catch-up sleep was linked with a decrease in BMI.

As to why sleeping in on weekends can lead to weight loss, one of the study co-authors, Robert Thomas, MD, MMSc, of the Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine at the Beth Israel Deaconess Medical Center in Boston,4 Reader’s Digest of the “substantial(大量的) experimental and epidemiological(流行病学的) data that short sleep contributes to weight gain.” He notes, “our best 5as researchers are that there are balances to be kept, and the body can adjust and 6 within reason. Catch-up sleep allows the basic balance to be maintained.”

Although the study showed significant differences in BMI with the 7of two or more hours of catch-up sleep, Dr. Thomas points out that there are “substantial individual differences,” such that the benefit we get from those extra hours will vary 8 on how much sleep each of us generally needs. “To determine your optional sleep, you can track the time spent sleeping on nights when there is no need to wake up to an alarm,” suggests Liza Baker, a health coach at Simply Health Coaching. That tells you about how many hours of sleep your body likes to get, since it 9greatly across the population, from just 4 to 5 hours to 9 to 10 hours.

So can you actually lost weight by sleeping in on the weekend? Only if you’re paying off a sleep 10from the week, according to the result of this study. It helps if you’re also eating less, Dr. Thomas adds.

【答案】

1AD

2A

3AB

4B

5BD

6ABC

7CD

8BC

9D

10C

【解析】

这是一篇说明文。当你睡眠不足时,你的身体会发生不好的事情,尤其是体重增加。周末睡个懒觉来弥补工作日的睡眠不足会降低身体体重指数(BMI)。文章介绍了研究人员对周末补觉的研究结果。

1考查固定搭配。句意:周末睡个懒觉来弥补工作日的睡眠不足会降低身体质量指数(BMI)。首先可以判断该空填形容词,周末补觉会降低BMI”,结合前后be…with,联想到固定搭配be associated with,所以该空填AD associated“联系,与……有关

2考查动词。句意:研究人员是来自美国马萨诸塞州波士顿和韩国的科学家合作的,他们试图确定所谓的补眠是否会影响一般人群的身体质量指数(BMI)。首先可以判断该空填动词,研究人员希望判断出所谓的补觉能否影响大部分人的BMI,所以填A. impacts“影响

3考查副词。句意:932补眠者”(周末比平日多睡约两个小时的人)BMI明显低于其他受试者。首先可以判断该空填副词修饰形容词lower,可知填AB significantly“较大程度上

4考查一般过去时态。首先可以判断该空填动词,周末补觉可以减肥这件事使人联想到缺觉导致增肥,所以填B .reminded“使人联想到

5考查名词。句意:作为研究人员,我们最好的估计是要保持平衡,身体可以在合理范围内调整和适应。首先可以判断该空填名词,根据句意判断填BD, estimates“估计

6考查动词。句意:作为研究人员,我们最好的估计是要保持平衡,身体可以在合理范围内调整和适应。首先可以判断该空填动词原形,结合句意可知填ABC adapt“适应

7考查名词。句意:尽管研究显示,在补眠两小时或更长时间后,身体质量指数(BMI)会有显著差异,但托马斯博士指出,个体之间存在显著差异。首先可以判断该空填名词,额外睡了2小时的BMI差异,所以填CD addition额外,增加

8考查现在分词作伴随状语。句意:因此,我们从这些额外的时间中得到的好处将取决于我们每个人通常需要多少睡眠。首先可以判断该空填动词,根据句意:额外睡眠的好处根据每个人总体所需睡眠时间而不同,所以填BC depending取决于

9考查时态和主谓一致。句意:这告诉你你的身体需要多少小时的睡眠,因为它在人群中变化很大,从45小时到910小时。首先可以判断该空填一个动词,个人所需睡眠时间因人而异,所以填D. varies使不同

10考查名词。句意:那么,周末睡懒觉真的能减肥吗?根据这项研究的结果表明,只有当你从一周中偿还了睡眠债的时候才能减肥。首先可以判断该空填名词,前文有pay off,所以填C. debt还债

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【题目】Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

Over-dried Earth

The south-west of the United States, together with some parts of Mexico across the Rio Grande, is one of the driest parts of the North American continent. But, over the past two decades, even that expected dryness 1 (take) to the limit. According to Park Williams, who works at Columbia University’s Lamont-Doherty Earth Observatory, the current lack of rainfall in the area constitutes a megadrought of a severity 2(see) on only four other occasions in the past 1,200 years.

Dr Williams studies the annual growth rings of 1,586 ancient trees, in order to reconstruct soil-moisture patterns going back to 800 A.D. During warm, wet years trees grow fast, producing wide rings. During cold, dry 3 they grow more slowly, producing narrow rings. During a drought, a tree 4 not grow much at all.

5they describe in this week’s Science, the team identified dozens of droughts over the centuries in question. But four stood out. They then took the average soil-moisture value for the current drought and compared it with sequential(连续的) 19-year averages with the previous four, one of them 6(last) nearly a century. This showed that the region is already drier than it was during the first three of the previous megadroughts, and is equivalent to the event of 1575-1603.

In a world 7 human actions are driving temperatures up, Dr Parker and his colleagues wondered how much people are 8(blame) for this state of affairs. To estimate that, they turned to climate modelling.

Climate models are able to re-run the past with and 9 the warming effects of human activity, offering a way to compare what actually happened with what might have done. In their simulated world in which anthropogenic(人类起源的) emissions had not increased the greenhouse-gas effect, the team found that a drought did indeed still influence the western reaches of North America during the first two decades of the 21st century. But this imaginary dry spell was considerably 10(severe) than the real one-ranking 11th rather than 2nd in the period under study (see chart).

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