英国一项大规模研究发现了每天喝一大杯牛奶等高钙饮食能帮助降低肠癌风险的更多证据。癌症慈善机构表示，健康均衡的饮食习惯、维持健康的体重以及戒烟都是降低肠癌风险的最佳方式。
Bowel cancer is the fourth most common cancer in the UK, and experts believe poor diet is behind half of all cases.
肠癌是英国第四大最常见的癌症，而专家认为引起一半肠癌病例背后的原因都是不健康的饮食习惯。
Researchers at Oxford University, funded by Cancer Research UK, looked at data from more than half a million UK women over more than 16 years. It found that those with an extra 300 milligrams of calcium in their diets, equivalent to a large glass of milk a day, had a 17% lower risk of bowel cancer.
牛津大学研究人员在英国癌症研究基金会的资助下对 50 多万名英国女性在超过 16 年间的医学数据展开了研究。研究发现，每天在饮食中额外摄入 300 毫克钙的人，即等同于每天多喝一大杯牛奶，患肠癌的风险降低了 17%。
Researchers also said dark, leafy greens, white wholemeal bread and some non-dairy milks, which contain calcium, also had a protective effect.
研究人员还表示，同样含钙的深色绿叶蔬菜、全麦白面包以及部分种类的非乳制牛奶也具有一定的保护效果。
词汇表
behind 是…背后的原因
funded by 由…资助
calcium 钙
equivalent 等同于，等效于
leafy greens 绿叶蔬菜
wholemeal 全麦的，用全麦面粉制成的
听力练习
一、听第一遍音频，回答问题。
1. What does the audio mainly discuss?
二、用一分钟阅读下列问题，然后听第二遍音频并回答问题。
1. Bowel cancer is the most common cancer in the UK.
a. True
b. False
c. Not given
2. Besides dairy milk, other sources of _______ include dark, leafy greens, white wholemeal bread and some non-dairy milks.
3. What do experts believe is responsible for half of all bowel cancer cases?
a. genetics
b. poor diet
c. lack of sleep
4. The study also investigated how exercise impacts bowel cancer risk.
a. True
b. False
c. Not given
三、听第三遍音频，将句子补充完整。（提示：可以反复听，直到听清楚每一个词）
1. Experts believe poor diet is behind ________________ all cases.
2. Researchers at Oxford University, funded by Cancer Research UK, looked at ________________ from more than half a million UK women over more than 16 years.
答案
一、听第一遍音频，回答问题。
1. What does the audio mainly discuss?
The audio mainly discusses things that can reduce the risk of bowel cancer.
二、用一分钟阅读下列问题，然后听第二遍音频并回答问题。
1. b. False. Bowel cancer is the fourth most common cancer in the UK.
2. Besides dairy milk, other sources of calcium include dark, leafy greens, white wholemeal bread and some non-dairy milks.
3. b. Experts believe poor diet is behind half of all cases.
4. c. Not given. The speaker does not mention whether the study investigated exercise as a factor.
三、听第三遍音频，将句子补充完整。（提示：可以反复听，直到听清楚每一个词）
1. Experts believe poor diet is behind half of all cases.
2. Researchers at Oxford University, funded by Cancer Research UK, looked at data from more than half a million UK women over more than 16 years.