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  3. Including a few bites of meat in the diets of poor children from developing countries improves both their health and their perfo

Including a few bites of meat in the diets of poor children from developing countries improves both their health and their perfo

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问题     Including a few bites of meat in the diets of poor children from developing countries improves both their health and their performance in mental tests, according to reports presented at this year’s annual meeting of the American Association for the Advancement of Science.
    In one study from rural Kenya,【C1】______found that children who ate【C2】______ounces of meat every day, along with their lunch of corn and beans,【C3】______better in problem-solving tests【C4】______children given supplements of milk or vegetable oil. This small【C5】______of meat gave children all their daily needs【C6】______vitamin B12, 68 percent of all they needed of zinc, and 26 percent of their daily iron【C7】______, the researchers noted.
    Dr. Howarth Bouis of the International Food Policy Research Institute in Washington D. C, told Reuters Health that research【C8】______children who don’t get enough iron, zinc and other【C9】______have a weakened immune system,【C10】______growth and cognitive impairments. And when entire generations of children aren’t getting enough nutrients,【C11】______can have implications nationwide, Bouis added.【C12】______, the World Bank estimates that micronutrient deficiencies【C13】______South Asia 5 percent of its GDP each year, he said. "When you can’t work【C14】______hard, you can’t think as well. It【C15】______from economic development, " Bouis said.
    He added that children in【C16】______countries don’t get enough nutrients【C17】______they can’t afford them, so it’s up to the government to【C18】______. For instance, the government could【C19】______programs that increase production of nutrient-rich foods, which【C20】______down the price, Bouis suggested.
【C18】
选项 A、interfere
B、intervene
C、interchange
D、intermix
答案B
解析 空格处所在的句子是说由于个人没有能力支付营养费用，因此政府应该…。下一句提到政府做出计划增加营养丰富的食物的产量。由此可见是政府出面干预。分析四个选项：[C]interchange“互换”与[D]intermix“混合；使混合或混合在一起”不符合题意．因此首先排除；[A]interfere是不及物动词。常与in或with连用，意为“干涉，干预，妨碍”，尤其以一种鲁莽或不礼貌的方式，政府并不是无理干涉，因此[A]也不对；[B]intervene也是不及物动词，意为“干涉，干预，斡旋”，强调“改变一项行动或一件事的发展”，常常指政府介入，采取措施解决某个社会问题。由分析可知[B]intervene最符合题意。
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