GMAT—AWA： 矿泉水与健康

　　The short passage:

　　The following appeared in an article in a health and fitness magazine.

　　‘Laboratory studies show that Saluda Natural Spring Water contains several of the minerals necessary for good health and that it is completely free of bacteria. Residents of Saluda, the small town where the water is bottled, are hospitalized less frequently than the national average. Even though Saluda Natural Spring Water may seem expensive, drinking it instead of tap water is a wise investment in good health’

　　Discuss how well reasoned…etc.

　　The sample answer:

　　Drinking Saluda water is thought as an advisable investment as it is wholesome（事件的概括不拖沓）. With a couple of studies and facts stated, this seems plausible. Yet, when there lacks adequacy of proof verifying the healthful benevolence it is able to generate, it is too hasty to afford this investment advice.

　　At first, Bottled Saluda Natural Spring Water is more preferred as studies discover how wholesome and purified it is. It is declared the studies are conducted in a lab where the environment differs from the outside space （有相关实验的，都要考虑实验中的变量，比如实验地点）. Namely, the temperature, moisture and pressure are comparatively stable, making the experimental result pleasing and satisfactory（让步可以控制推导的节奏，层层剥离使得逻辑错误展露）. By contrast, when customers drink it in an open air where the environment is more intricate, they might not satiate its perfection, its purification for example, as long-distance delivery or improper storage may ruin it （指出错误后直接添加细节，信息紧凑完整）.Besides, the necessary minerals contained in this bottled water might not be wholesome to some groups of people whose bodies do not lack these minerals（详略得当，该简就简）. These flaws undetected, this investment advice tends to be implausible.

　　Besides, the other fact about Saluda is afforded to verify the rationality of drinking this brand of bottled water. Initially, though Saluda is the place where the water is bottled （事实细节可以放到让步的部分）, there is no substantiation disclosing the water residents drink daily is exactly from the river where this brand of water is bottled. Even though the water they drink is the same as that is bottled, it is suspicious it is the water that makes them less hospitalized （递进关系的衔接）. An agreeable living environment in Saluda, a less stressful lifestyle or a more nutritional dietary structure may jointly contribute to dwellers’ well-being.Lastly, when their hospitalization rate is compared with that of the national average, it is necessary to disclose the specific number of both （有关量的变化的，要考虑程度）. After all, only when there is significantly high rate of hospitalization nationally and quite low counterpart in Saluda, this data is worth noticing（适当分析显层次）. When there is inadequacy of verification, there is an unconvincing argument deduced.

　　Conclusion

　　(略)

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