首页 新闻 体育 娱乐 游戏 邮箱 搜索 短信 聊天 通行币 天气 答疑 交友 导航


新浪首页 > 新浪教育 > 每月一问:多喝牛奶“骨”好壮(上)

Is Drinking Milk the Best Way to Grow Strong Bones?
http://www.sina.com.cn 2004/05/26 11:16  空中美语

  语音讲解:
   (点击右键“另存为”可下载语音)

  We e all seen and heard the advertisements:1 “Got Milk?” and “Milk: It Does a Body Good.” As children, we are taught that milk has calcium and that drinking milk is good for building strong bones and teeth. This idea has become so deeply-rooted in society that it is now a sacred cow. But is all that we have been taught about milk true? Is milk the best source of calcium? The answer is both “yes” and “no.”

  The calcium in milk does in fact build strong bones by increasing what is known as “bone mineral density.” Increasing bone mineral density is essential when the bones are still growing. That’s why most doctors advise3 children to drink a lot of milk. But too much of a good thing may not be all that good. Some doctors now believe that drinking too much milk is actually unhealthy. They claim4 that the animal protein in milk may have a negative5 impact6 on our health.

每月一问:多喝牛奶“骨”好壮(上)

  我们都看过、也听过以下的广告词:“喝牛奶了没有?”以及“喝牛奶让你身体好壮壮”等。自孩提时代开始,我们被灌输的观念就是:牛奶含有钙质,多喝牛奶有益骨骼和牙齿的生长。这个信条深植于整个社会,就象印度的圣牛般不容侵犯。但是,我们所学到的这些关于牛奶的知识都是正确的吗?牛奶真的是人体摄取钙质的最佳来源吗?答案既“是”,也“不是”。

  牛奶中的钙质确实能增加所谓的“骨质密度”,以强化骨骼。当骨骼正值发育阶段时,增加骨质密度是绝对必要的。这正是大部分的医生之所以会建议小朋友多喝牛奶的原因。但是,好东西也是过犹不及。目前有部分医师认为,喝过多牛奶事实上并不利于健康。他们宣称,牛奶中的动物性蛋白质对健康有负面影响。

  Vocabulary

  1.advertisement n. sth. that tells people about a product that’s for sale 广告

  TV programs are regularly interrupted by advertisements.

  电视节目每隔一段时间就会插播广告。

  2.do sb./sth. good v. phr. to have a positive effect on sb./sth. 对 … 有益

  My boss said that I’mtoo tense, and that a vacation would do me lots of good.

  老板说我太紧张了,放个假对我大有好处。

  3.advise v. to suggest that sb. do sth. 劝告;建议

  My doctor advised me to quit smoking and start exercising.

  医师建议我戒烟并开始运动。

  ●4.claim v. to declare sth. is true even if there isn’t any proof 宣称;声称

  She claims to be friends with the mayor, but I don’t believe her.

  她宣称跟市长交情匪浅,但我不相信她。

  ●5.negative adj. bad; not positive 负面的

  SARS has had a negative effect on Taiwan’s tourism industry.

  SARS 对台湾的旅游业造成负面影响。

  ●6.impact n. effect 影响

  The emotional speech had a profound impact on the audience.

  那感人的演说深深地影响了听众。

  More Information

  1.calcium n. 钙

  2.sacred cow n. 神圣不容侵犯的人或物 (常指信仰、观念、制度等不容质疑,通常带有贬意)

  3.bone mineral density n. 骨骼矿物质密度(亦称骨质密度或骨钙盐密度)

  4.animal protein n. 动物性蛋白质




   更多精彩内容尽在:新浪网英语频道

   在线英语交流:[ E文杂谈 ] [ 午夜英文剧场 ] [ 翻译热线 ]



英语学习论坛】【评论】【 】【打印】【关闭
Annotation


新闻查询帮助

热 点 专 题
中国企业家治理沙尘暴
湖南嘉禾沈阳拆迁
陈水扁“5-20就职”
美英向伊政府移交权力
巴黎戴高乐机场坍塌
美英联军虐待伊俘虏
莎拉-布莱曼演唱会
2004年广博会官方网站
2004法国网球公开赛



教育频道意见反馈留言板 电话:010-62630930-5178 欢迎批评指正

新浪简介 | About Sina | 广告服务 | 联系我们 | 招聘信息 | 网站律师 | SINA English | 会员注册 | 产品答疑

Copyright © 1996 - 2004 SINA Inc. All Rights Reserved

版权所有 新浪网
北京市通信公司提供网络带宽