How much water should we drink?我们每天应该喝多少水?
文章来源:未知 文章作者:enread 发布时间:2024-03-07 02:17 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
How much water should we drink?我们每天应该喝多少水?、

  我们都知道 “多喝水有益身体健康” 的说法。确实,水中含有人体必需的营养,水还可以帮助我们的身体排出毒素、促进消化。有些人相信 “8x8” 的 “饮水法则”,即每天分8次喝8大杯水。不过实际上,每个人每天应该喝多少水是由个体的年龄、体重和运动量等多重因素而决定的。本期 “随身英语” 讨论我们是否应该严格定时定量地喝水。
  词汇:water水
  In school, kids are told to drink water in class, tannoy announcers encourage us to remember our bottles on public transport, and we're reminded by experts that water will help us have glowing skin and regulate our weight. But how much should we actually be drinking?
  For many years, people have followed the unofficial advice of drinking eight glasses of water, eight times a day, known as the '8x8 rule'. According to Jessica Brown, writing for BBC Future, this seems to have partly come from not understanding guidance that was published almost 80 years ago. In 1945, the US Food and Nutrition Board of National Research Council advised drinking one millilitre of liquid for every recommended calorie of food. This is equivalent to around two litres of water a day, or eight glasses per person. But, Jessica says, the reality is that individuals have different needs. Weight, age and activity level all affect how much water someone should drink.
  So, should we control our water intake1 at all? It's not that important, according to Dr Stanley Goldfarb from the University of Pennsylvania. He told BBC podcast More or Less that our body is very good at hydration control– it tells us when we are dehydrated. First, there is 'the thirst system, which tells us go drink because your body water content is slightly reduced. And secondly2, we have the kidney system which helps to retain any water and kicks in well before we really sense any thirst'.
  There are, of course, benefits to drinking water. It helps our bodies regulate temperature, flushes outtoxins, aids digestion3 and acts as a shock absorber for our joints4. It also contains essential nutrients5 like calcium6 and magnesium7, which are important for bone strength.
  So, next time you feel thirsty, reach for a glass of water, but otherwise, don't worry about it! Your body knows what it's doing.
  词汇表
  bottle 水瓶
  glowing 容光焕发的,水灵的
  millilitre 毫升
  liquid 液体
  calorie (热量单位)卡路里
  litre 升
  intake 摄入量
  hydration control 人体内水分控制
  dehydrated 缺水的 ,脱水的
  thirst system 口渴感知系统
  body water content 人体内水分含量
  kidney system 肾脏系统
  retain 保持,留存
  kick in 开始起作用,见效
  flush out 清除,排出
  toxin 毒素
  digestion 消化
  shock absorber 起减震缓冲功能的物体
  calcium 钙
  magnesium 镁
 


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1 intake 44cyQ     
n.吸入,纳入;进气口,入口
参考例句:
  • Reduce your salt intake.减少盐的摄入量。
  • There was a horrified intake of breath from every child.所有的孩子都害怕地倒抽了一口凉气。
2 secondly cjazXx     
adv.第二,其次
参考例句:
  • Secondly,use your own head and present your point of view.第二,动脑筋提出自己的见解。
  • Secondly it is necessary to define the applied load.其次,需要确定所作用的载荷。
3 digestion il6zj     
n.消化,吸收
参考例句:
  • This kind of tea acts as an aid to digestion.这种茶可助消化。
  • This food is easy of digestion.这食物容易消化。
4 joints d97dcffd67eca7255ca514e4084b746e     
接头( joint的名词复数 ); 关节; 公共场所(尤指价格低廉的饮食和娱乐场所) (非正式); 一块烤肉 (英式英语)
参考例句:
  • Expansion joints of various kinds are fitted on gas mains. 各种各样的伸缩接头被安装在煤气的总管道上了。
  • Expansion joints of various kinds are fitted on steam pipes. 各种各样的伸缩接头被安装在蒸气管道上了。
5 nutrients 6a1e1ed248a3ac49744c39cc962fb607     
n.(食品或化学品)营养物,营养品( nutrient的名词复数 )
参考例句:
  • a lack of essential nutrients 基本营养的缺乏
  • Nutrients are absorbed into the bloodstream. 营养素被吸收进血液。 来自《简明英汉词典》
6 calcium sNdzY     
n.钙(化学符号Ca)
参考例句:
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
7 magnesium bRiz8     
n.镁
参考例句:
  • Magnesium is the nutrient element in plant growth.镁是植物生长的营养要素。
  • The water contains high amounts of magnesium.这水含有大量的镁。
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