A study of nearly 140,000 women in the U. S. showed that regular helpings of a small portion of nuts can have a powerful protect

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问题     A study of nearly 140,000 women in the U. S. showed that regular helpings of a small portion of nuts can have a powerful protective effect against a disease that is threatening to become a global epidemic. Women who consumed a 28 gram packet of walnuts at least twice a week were 24 per cent less likely to develop type 2 diabetes than those who rarely or never ate them. Eating walnuts just two or three times a week can reduce the risk of type 2 diabetes by almost a quarter.
    The latest findings, published in the Journal of Nutrition, are not the first to highlight the antidiabetic effects of walnuts, with earlier research showing similar benefits. However, this is thought to be one of the largest studies to find regularly snacking on them can help prevent the condition. Although the latest research was carried out on female nurses, it’s likely that the same benefits apply to men.
    According to the charity Diabetes UK, at the current rate of increase, the numbers affected by type 2 diabetes in the UK will rise from around 2. 5 million currently to four million by 2025 and five million by 2030. Left untreated, it can raise the risk of heart attacks, blindness and amputation(截肢). Being overweight, physically inactive and having a poor diet are major risk factors for the disease.
    Scientists at the Harvard School of Public Health in Boston, U. S. , tracked 137,893 nurses aged from 35 to 77 over a ten year period to see how many developed type 2 diabetes. Their dietary habits were closely monitored, including details on how often they ate nuts, particularly walnuts. After allowing for body fat and weight, the researchers found eating walnuts one to three times a month reduced the risk by four per cent, once a week by 13 per cent and at least twice a week by 24 per cent.
    In a report on the findings the researchers said: " These results suggest higher walnut consumption is associated with a significantly lower risk of type 2 diabetes in women. " Walnuts are rich in healthy fatty acids(脂肪酸)which have been shown to reduce inflammation(炎症)in the body and protect against heart disease, cancer and arthritis(关节炎). Last year, experts at the University of California Los Angeles also found young men in their twenties and thirties who ate walnuts every day increased their sperm count and boosted their fertility.
    The research comes just after a Louisiana State University study which showed that eating nuts can reduce people’s risk of obesity. The study found that those who consumed varieties such as almonds and pistachios(开心果)demonstrated a lower body weight, body mass index(BMI)and waist circumference compared to non-consumers. They were also at lower risk of developing heart disease, type 2 diabetes and metabolic syndrome.
It has been proved that eating nuts can______.

选项 A、lower people’s body weight, BMI and waist circumference
B、reduce inflammation in the body
C、lower people’s risk of heart disease, cancer and arthritis
D、increase young men’s sperm count and boost their fertility

答案A

解析 事实细节题。本题考查吃各种坚果的益处。定位句指出“路易斯安那州州立大学的一项课题表明吃坚果可以降低人们肥胖的风险,在这之后便展开了相关的研究。经研究证明,那些吃各种坚果如杏仁、开心果的人与那些不吃坚果的人相比,体重相对较低、身体质量指数较低、腰围相对较细”,A)“降低人们的体重、身体质量指数、腰围”与原文表述一致,故为答案。B)“能缓解体内炎症”、C)“降低患心脏病、癌症和关节炎的危险”和D)“增加精子数量提高了男性生育能力”都是吃核桃的好处,故均排除。
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