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 with us for a long time. "Most experts agree that the changes were【C3】________to something in the environment," says social epidemiologist Thomas Glass of The Johns Hopkins Bloomberg School of Public Health. That something could be a【C4】________of the green.
    The new research,【C5】________in the American Journal of Preventive Medicine, isn’t the first to associate greenery with better health, but it does get us closer【C6】________identifying what works and why. At its most straightforward, a green neighborhood【C7】________means more places for kids to play—which is【C8】________since time spent outdoors is one of the strongest correlates of children’s activity levels. But green space is good for the mind【C9】________: research by environmental psychologists has shown that it has cognitive【C10】________for children with attention-deficit disorder. In one study, just reading【C11】________in a green setting improved kids’ symptoms.
    【C12】________to grassy areas has also been linked to【C13】________stress and a lower body mass index among adults. And an【C14】________of 3,000 Tokyo residents associated walkable green spaces with greater long life among senior citizens.
    Glass cautions that most studies don’t【C15】________prove a causal link between greenness and health, but they’re nonetheless helping spur action. In September the U.S. House of Representatives【C16】________the delightfully named No Child Left Inside Act to encourage public initiatives【C17】________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,【C19】________what’s there. Your children in particular will love it—and their bodies and minds will be【C20】________to you.
【C15】

选项 A、comfortably
B、curiously
C、negatively
D、necessarily

答案D

解析 副词辨析题。根据后半句but表转折的部分“但这些研究有助于激励人们采用行动”,可推知前半句应该是说大多数研究不一定能证明绿地和健康之间“必然”存在因果关系,故选D项necessarily“必然地,必定地”。空格处的副词修饰prove,不存在“舒适地或好奇地证明”,因此排除A项comfortably“舒适地”与B项curiously“好奇地”。空格前有否定词don’t,若填入C项negatively“否定地;消极地”,表示“肯定能证明绿地和健康之间‘必然’存在因果关系”,这与原文but后的内容相悖。
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