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  3. Eating healthily costs about $1.50 more per person daily, according to the most thorough review yet of the affordability of a he

Eating healthily costs about $1.50 more per person daily, according to the most thorough review yet of the affordability of a he

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问题     Eating healthily costs about $1.50 more per person daily, according to the most thorough review yet of the affordability of a healthy diet.
    "For many low-income families, an【C1】______$1.50 daily is quite a lot," says Mayuree Rao, "It【C2】______to about $550 more per year per person, and that could be a real【C3】______to healthy eating."
    Rao and her colleagues reached their【C4】______after analysing 27 studies from 10 high-income countries, comparing price【C5】______for healthy versus unhealthy ingredients and diets.【C6】______one study compared the cost of a diet rich in fruit and vegetables versus one that was【C7】______in them. Another compared prices of【C8】______healthy and less healthy items, such as wholegrain versus white bread.
    Individual items were【C9】______matched in price. Meats【C10】______the largest difference: healthier options cost an average of 29 cents per serving more than unhealthy options.
   【C11】______this, comparisons of whole diets showed that healthier diets cost averagely $1.48 more per day.
    This shows that comparisons based on single ingredients don’t tell the full【C12】______. "It tells us that,【C13】______, it doesn’t cost more to eat healthier based on one nutrient," says Rao. "But there’s growing evidence that the【C14】______of foods in your diet【C15】______your disease risk more than any single nutrient, so we think our【C16】______finding that healthier diets cost about $1.50 more has the most public health【C17】______."
    As to why healthier food has become more【C18】______Rao says that it may be because the food industry organizes itself and the types of food it produces to【C19】______its own economies of scale,【C20】______than what’s best for consumers.
【C11】
选项 A、Given
B、With
C、Since
D、Despite
答案D
解析 this指代上一句提到的对individual items比较中的发现，即便差别最大的肉类也仅相差29美分；而空格所在句的主句提到对whole diets的比较中，价格相差多达1．48美元，据此可知whole diets的价格差异远大于individual items的价格差异。所以this与空格所在句主干陈述的内容之间是转折让步的关系，故选D项Despite“尽管如此”。
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