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  3. A new study found that inner-city kids living in neighborhoods with more green space gained about 13% less weight over a two-yea

A new study found that inner-city kids living in neighborhoods with more green space gained about 13% less weight over a two-yea

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问题     A new study found that inner-city kids living in neighborhoods with more green space gained about 13% less weight over a two-year period than kids living amid more concrete and fewer trees. Such 【C1】______ tell a powerful story. The obesity epidemic began in the 1980s, and many people 【C2】______ it to increased portion sizes and inactivity, but that can’t be everything. Fast foods and TVs have been 【C3】______ us for a long time. "Most experts agree that the changes were 【C4】______ to something in the environment," says social epidemiologist Thomas Glass of the Johns Hopkins Bloomberg School of Public Health. That something could be a 【C5】______ of the green.
    The new research, 【C6】______ in the American Journal of Preventive Medicine, isn’t the first to associate greenery with better health, but it does get us closer 【C7】______ identifying what works and why. At its most straightforward, a green neighborhood 【C8】_____ means more places for kids to play—which is 【C9】______ since time spent outdoors is one of the strongest correlates of children’s activity levels. But green space is good for the mind 【C10】______ ;research by environmental psychologists has shown that it has cognitive 【C11】______ for children with attention-deficit disorder. In one study, just reading 【C12】______ in a green setting improved kids’ symptoms.
    【C13】______ to grassy areas has also been linked to 【C14】______ stress and a lower body mass index (体重指数) among adults. And an 【C15】______ of 3,000 Tokyo residents associated walkable green spaces with greater longevity (长寿) among senior citizens.
Glass cautions that most studies don’t 【C16】______ prove a causal link between greenness and health, but they’re nonetheless helping spur action. In September the U. S. House of Representatives 【C17】______ the delightfully named No Child Left Inside Act to encourage public initiatives aimed at exposing kids to the outdoors.
    Finding green space is not 【C18】______ easy, and you may have to work a bit to get your family a little grass and trees. If you live in a suburb or a city with good parks, take 【C19】______ of what’s there. Your children in particular will love it—and their bodies and minds will be 【20】______ to you.

【C16】
选项 A、curiously
B、negatively
C、necessarily
D、comfortably
答案C
解析 词语辨析题。此句需要填一个副词，来修饰否定意思，只能选择C，not necessarily表示不一定、未必。其他选项都不合句意。此句译为格拉斯注意到大多数的研究并不一定证明了绿色与健康的因果关系。
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