【BBC】每日听力-水果、蔬菜和疾病

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听力原文


One of the most commonly-held beliefs regarding health and nutrition in the UK has been found to be untrue, according to a new scientific study.


For many years British people have been recommended to eat at least 'five-a-day' – that is five items of fruit or vegetables every day in order to improve their health and reduce the likelihood of illness, in particular cancer.


The recommendation was first put forward in 1990 by the World Health Organization which said that the 'five-a-day' diet could prevent cancer and other chronic diseases.


Since then the advice has been a mainstay of public health policies in many developed countries, such as the UK, where the population eat a high proportion of junk food.


Many health campaigns have promoted the advice, and indeed much food packaging in Britain states how the contents will constitute part of your five-a-day.


However, a study of 500,000 Europeans from 10 different countries refutes the commonly-believed suggestion that up to 50% of cancers could be prevented by increasing the public's consumption of fruit and vegetables.


Instead the study, which is led by researchers from a well-respected New York medical school, estimates that only 2.5% of cancers could be averted by eating more fruit and veg.


It seems that the key to avoiding cancers is to have an overall healthy lifestyle which includes not smoking or drinking a lot of alcohol, taking exercise and avoiding obesity.


But medical charities have spoken out to remind people that diet is an important factor in staying healthy, and that even a 2.5% reduction in cancers is still a positive step.


Cancer Research UK said: "It's still a good idea to eat your five-a-day but remember that fruits and vegetables are pieces in a much larger lifestyle jigsaw."



译文

一份新的科学研究表明,英国人关于健康和营养方面的一个最普遍的信仰是错误的。


多年来,英国人一直被推荐“每日五份”——每天吃五份水果蔬菜以改善健康状况,减少患病的可能性,尤其是癌症。


该建议是由世界卫生组织在1990年首次提出。该组织表示,“每日五份”的饮食可以预防癌症和其他慢性疾病。


自那时起,该建议成为许多发达国家公共健康政策的支柱,例如英国,改国民众的饮食中垃圾食品的比例非常高。


许多健康活动也开始给出建议。实际上,英国许多食品的包装上都注明这些食品可以构成你“每日五份”的一部分。


该建议称,多吃蔬菜和水果可以预防50%的癌症。然而,在对十个不同国家里的50万名欧洲人进行的一项研究中,这一观点被推翻。


该研究是由纽约一所受人尊重的医学院发起的。该研究估计,食用更多水果和蔬菜只可以避免2.5%的癌症。


似乎避免癌症的关键是拥有全面健康的生活方式,其中包括不吸烟,不酗酒,多运动,避免肥胖。


但是医疗慈善机构提醒大家,饮食是保持健康的重要因素,即便只能避免2.5%的癌症,这也是非常积极的。


英国癌症研究机构表示:“每日五份仍然很好,但是记住,蔬菜和水果仅仅是生活方式的两个组成部分。”


重点词汇

1. mainstay 主要支持者 支柱 骨干

例句:Agriculture is still the mainstay of the country's economy.

农业仍然是这个国家经济的主要支柱。


2. avert 防止 避免

例句:He managed to avert suspicion.

他设法避嫌。


3. chronic 慢性的 长期的

例句:There is a chronic unemployment problem in America.

美国存在长期失业问题。


4. jigsaw 拼图游戏

例句:Both her children did jigsaw puzzles easily.

她的两个孩子玩拼图游戏都很轻松。




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