Water: How Much Should You Drink Each Day?
How much water should you drink each day? 26____ Studies have produced different recommendations over the years. Although no single formula fits everyone, knowing more about your body's need for fluids will help you estimate how much water to drink each day.
Water is your body's main chemical element. 27____ Every system in your body depends on water. For example, water carries nutrients（营养成份） to your cells, and provides a good environment for ear, nose and throat Lack of water can lead to serious problems.
Every day you lose water. For your body to work properly, you must meet its water needs. So how much fluid does the average healthy adult living in a moderate climate need? Studies show an adequate intake for men is about 13 cups a day. 28____
Everyone has heard the advice, "Drink eight glasses of water a day. "29____ However, it remains popular because its' easy to remember.Just keep in mind that rule shuld be changed to: "Drink eight glasses of fluid a day,"because all fluids add up to the daily total.
You don't need to rely only on what you drink to meet your fluid needs.30____ On average, food provides about 20 percent of total water intake. But water is still your best choice since it is inexpensive and is everywhere.
A. For women, it is about nine cups.
B. What you eat also provides fluid.
C. This rule isn't supported by hard evidence.
D. It's a simple question with no easy answers.
E. You must limit your fluid intake on this occasion.
F. It makes up about 60 percent of your body weight.
【正确答案】：26. D 27. F 28. A 29. C 30. B
【题目解析】：26. 空格前一句问到你每天应该喝多少水？从而可推测空格该回答这个问题，选项中只有D（这是一个简单的问题，没有简单的答案）符合语境。27. 空格前提到水是人体主要的化学元素，后面也说到人体的每个系统都依赖于水，说明空格谈论的也应该是水与人体的关系，只有选项F（水占体重的60%）符合语境。28. 空格前面提到研究表明，男性每天大约要喝13杯，可推测之后说的应该是女性每天要喝多少水，故选A。29. 空格前面的“每天八杯水”是一条准则，可推测空格要填的应该与这条准则相关，只有选项C（这条规则没有确凿的证据支持）符合语境。30. 空格前面一句提到你不需要仅仅依靠喝什么来满足对水的需求，空格后一句也提到平均而言，食物提供了总摄水量的20%，从而可以推测空格要表达的是也可以通过食物来满足对水的需求，故选B。
