2013上海高考英语二模汇编简答题2013上海高考英语二模汇编简答题.doc

奉贤区 Section D A new study from Sweden found that men may be able to reduce their risk of having a stroke by about one-sixth, simply by eating one chocolate bar per week. Researchers at Stockholm’s Karolinska Institute followed more than 37,000 men between the ages of 45 and 79 for about 10 years. Compared to those who ate little or no chocolate, men who ate the most—about 2.2 ounces per week---had a 17% lower risk of having a stroke during that time span. The study adds to the growing evidence that chocolate, or even cocoa, has some heart-healthy properties. Cocoa contains flavonoids, compounds that have been shown to lower blood pressure, As a type of antioxidant, flavonoids can also thin the blood and improve the function of blood vessels. Therefore, it could help prevent heart attacks and strokes. As the researchers note, however, beside the substances in chocolate –or, more likely, certain traits associated with chocolate lovers—could just as easily explain the findings. The study participants who ate more chocolate tended as a group to be better educated and healthier than their peers. They were less likely to smoke or have high blood pressure. Fayad, a professor of neurological sciences at the University of Nebraska Medical Center, in Omaha, says, This association could also be due to the fact that (chocolate eaters) are healthier people, its possible that the link between chocolate consumption and strokes can be explained by health or lifestyle differences that went undetected . However, another professor Friedman adds,” when it comes to chocolate consumption, moderation is the key. Eating five chocolate bars a week might be worse for you in terms of obesity than it is good for you in terms of stroke risk.” “Actually, following a healthy diet, exercising regularly, and treating known risk factors such as high blood pressure will all have a bigger impact on stroke risk than chocolate consumption”. Fayad says. (NO MORE THAN TEN WORDS) 81. The research by Stockh