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  3. Thinner isn’t always better. A number of studies have【C1】________that normal-weight people are in fact at higher risk of some di

Thinner isn’t always better. A number of studies have【C1】________that normal-weight people are in fact at higher risk of some di

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问题     Thinner isn’t always better. A number of studies have【C1】________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【C2】________. For example, heavier women are less likely to develop calcium deficiency than thin women.【C3】________, among the elderly, being somewhat overweight is often an【C4】________of good health.
    Of even greater【C5】________is the fact that obesity turns out to be very difficult to define. It is often defined【C6】________body mass index, or BMI. BMI【C7】________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,【C8】________, can be divided into moderately obese, severely obese, and very severely obese.
    While such numerical standards seem【C9】________, 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,【C10】________others with a low BMI may be in poor【C11】________. For example, many collegiate and professional football players【C12】________as obese, though their percentage body fat is low. Conversely, someone with a small frame may have high body fat but a【C13】________BMI.
    Today we have an【C14】________to label obesity as a disgrace. The overweight are sometimes【C15】________in the media with their faces covered. Stereotypes【C16】________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.【C17】________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,【C18】________in health concerns, have stimulated a number of anti-obesity【C19】________. My own hospital system has banned sugary drinks from its facilities. Many employers have instituted weight loss and fitness initiatives. Michelle Obama has launched a high-visibility campaign【C20】________childhood obesity, even claiming that it represents our greatest national security threat.
【C3】
选项 A、Instead
B、However
C、Likewise
D、Therefore
答案C
解析 本题考查上下文逻辑关系，即选择一个选项来表达本句子和前句之前的逻辑关系。首先应明确本句子和前句均是首段的分述信息，特别是根据前句句首的标志词For example判定出本句和前句都是具体的例子，用来支持说明本文的主旨观点1％ inner isn’t always better：(瘦不总是好事。)再把握前句的信息：heavier women are less likely to develop calcium deficiency than thin women (较重的女性患缺钙的可能性小于较瘦的女性)。本填空所在句子的信息为：among the elderly, being somewhat overweight is often an________of good health，根据分述中的例子与文章主旨倾向一致的原则，可以猜测本句子的意思是：在老年人中，超重经常是有益于健康的。该句与同样是分述信息的前句之间最可能的逻辑关系就是并列或递进，四个选项中最佳选项为C项Likewise (同样地)，表达并列逻辑关系。其他选项例如A项Instead(反而)和B项However(但是)表示的是转折逻辑关系；D项Therefore(因此)表示因果逻辑关系，均与本题前后句的逻辑关系不符。
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