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  3. Thinner isn’t always better.A number of

Thinner isn’t always better.A number of

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问题 Thinner isn’t always better.A number of studies have 1_that normal-weight people are in fact at higher risk of some diseases compared to those who are overweight.And there are health conditions for which being overweight is actually_2_.For example,heavier women are less likely to develop calcium deficiency than thin women.3 among the elderly,being somewhat overweight is often an_4 of good health.Of even greater 5 is the fact that obesity turns out to be very difficult to define.It is often defined 6_body mass index,or BMI.BMI 7 body mass divided by the square of height.An adult with a BMI of 18 to 25 is often considered to be normal weight.Between 25 and 30 is overweight.And over 30 is considered obese.Obesity,8,can be divided into moderately obese,severely obese,and very severely obese.While such numerical standards seem 9,they are not.Obesity is probably less a matter of weight than body fat.Some people with a high BMI are in fact extremely fit,10 others with a low BMI may be in poor 11.For example,many collegiate and professional football players 12 as obese,though their percentage body fat is low.Conversely,someone with a small frame may have high body fat but a 13 BMI.Today we have a（an）_14_to label obesity as a disgrace.The overweight are sometimes_15_in the media with their faces covered.Stereotypes_16_with obesity include laziness,lack of will power,and lower prospects for success.Teachers,employers,and health professionals have been shown to harbor biases against the obese._17_very young children tend to look down on the overweight,and teasing about body build has long been a problem in schools.Negative attitudes toward obesity,_18_in health concerns,have stimulated a number of anti-obesity_19_.My own hospital system has banned sugary drinks from its facilities.Many employers have instituted weight loss and fitness initiatives.Michelle Obama launched a high-visibility campaign_20_childhood obesity,even claiming that it represents our greatest national security threat.1选？A.deniedB.concludedC.doubledD.ensured
选项 A.denied
B.concluded
C.doubled
D.ensured
答案 B
解析 词义辨析【直击答案】空格所在句意为“一系列的研究已经，事实上，正常体重的人患病风险要高于超重的人”。根据句义，后面的部分实际上是研究结论，因此B项concluded符合题意。【命题思路】本题根据上下文所给信息判断答案，同时也考查考生对相近含义的词汇辨析。【干扰排除】A项denied“否认”，与原文意义相反；C项doubled“翻倍”，与题意较远；D项ensured“确保”，不符合题意，因为研究不能确保后面的事实，只能得出后面的事实作为结论。
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英语二研究生

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