Passage Two
Drinking too much fluid when exercising vigorously—which is often recommended in training—can actually kill you, sports medicine expert Timothy Noakes has warned. He says that drinking too much is unnecessary and can be fatal. “Perhaps the best advice is that drinking according to the personal need of thirst seems to be safe and effective.”
Noakes cites the example last year, when a woman in the Boston marathon died from a severe lack of salt in the blood because she drank too much sports drink before and during the race. Her death was not an isolated incident. Similar cases occurred in athletes, army personnel and hikers.
Conventional thinking has been that thirst is not a good indicator of how much fluid we need, and is actually a late signal of severe fluid loss. This has led to doctrines where athletes are encouraged to drink more than they want to.
Now, a new set of guidelines based on evidence has been developed, and recently adopted by USA Track and Field. It says the average person should probably be drinking between 400 ml and 800 ml in an hour in most forms of recreational and competitive exercise. People gently exercising in a mild environment would probably need less, and professional athletes competing in warm environments at higher intensities would probably need more. Cool drinks are absorbed more readily by the exercising body than warm drinks, and those containing sodium, such as sports drinks, are also more quickly absorbed.
The word “fatal” in the first paragraph is nearest in meaning to _____.
文章开头第一句就指出“Drinking too much fluid can actually kill you”，故fatal表示“致命的， 毁灭性的”， 强调其带来的危害， harmful与之同义， 故选D。
By giving the example of the woman‟s death, the expert tries to tell us that_____.
根据题干内容定位至文章第二段， Noakes举例实则为了证明其（在第一段中） 所讲述的“...drinking too much is unnecessary and can be fatal”， 即C项符合题意。
Athletes are usually encouraged to drink more than they really need because many people think that _____.
文章第三段提到“Conventional thinking has been that thirst is not a good indicator of how much fluid we need, and is actually a late signal of severe fluid loss.”选项A与之意思相近， 故为正确答案。
How much you should drink while exercising seems to have nothing to do with _____.
文章最后一段分别说明不同环境、 不同的运动强度、 与血液中的盐分的不同， 其所需饮用量是不同的， 只有A项未提及， 故A为无关因素。
The best title for this article would be _____.
文章一开始就讲到“Drinking too much fluid when exercising vigorously can actually kill you...”并通过举例子、 列数字等方式验证这一说法， 故C项（Drinking Too Much during Sports Kills） 更能概括全文， 适合做文章标题。