2024届高考英语复习外刊精读：How much water should we drink 学案

2024届高考备考 外刊精读 Day 55 How much water should we drink 我们每天应该喝多少水？ 学案 文本导读： 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。本文 讨论我们是否应该严格定时定量地喝水。 Step 1:词汇温习 bottle 水瓶 glowing 容光焕发的，水灵的 liquid 液体 calorie （热量单位）卡路里 litre 升 intake 摄入量 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 Step 2: 原文精听+精读 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 intake 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 secondly, 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 wate