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题目:ARGUMENT 162 - A recent study shows that people living on the continent of North America suffer 9 times more chronic fatigue and 31 times more chronic depression than do people living on the continent of Asia. Interestingly, Asians, on average, eat 20 grams of soy per day, whereas North Americans eat virtually none. It turns out that soy contains phytochemicals called isoflavones, which have been found to possess disease-preventing properties. Thus, North Americans should consider eating soy on a regular basis as a way of preventing fatigue and depression.
字数:393 (532) 用时:0:30:00 日期:2006-8-24
In the argument, the author claims that North Americans should take more soy regularly so as to stay away from fatigue and depression. To justify the recommendation, the author cites the content of a recent research in which merely the fact that residents in North America suffers more chronic fatigue and depression. Besides, the author also mentions the fact that Asians have more soy per day than North Americans. Unfortunately, a comprehensive scrutiny reveals that the very two facts and the relevant reasoning do not lend credible support to the argument.
To begin with, the author fails to establish a causal relationship between the consuming of soy and the suffering of chronic fatigue and depression. On the one hand, although in reality the Asians have far more soy every, it is totally possible that some other factors, rather than substance in soy serves to prevent the chronic fatigue and depression. For instance, it is completely possible that the healthy life habit contributes to the healthy body of Asians and avoidance to such disease. Such as anther kind of daily eating food which contains the necessary substance and factors to keep from fatigue and chronic. Or the less suffering of chronic fatigue and depression are attributed to the proper climate and special geographical situation, which is particularly beneficial to the health of people. On the other hand, the mere fact that soy contains phytochemicals called isoflavones, which have been found to possess disease-preventing properties, does not tell anything concerning the function of soy for preventing fatigue and depression. It is entirely possible that the substance merely could prevent light cold, not all the disease, let alone defend the chronic fatigue and depression. Therefore, no convincing evidence is provided to support the assumed causal relationship between soy and the lack of fatigue and depression.
In addition, without analysis of the other potential alternatives which might result in chronic fatigue and depression in the continent of North America, it is unfair for the author to assume that the consuming of soy would be helpful in preventing the disease. The occurrence of fatigue and depression is probably cause by other factors, rather than the lack of isoflavoens. Such factors include unhealthy life habit, great pressure from work, and the local environment and so forth. For instance, perhaps many North Americans lead an unhealthy life for drinking too alcohol which damage the immune system in the body. Or the high pressure from work is extremely beyond tolerance, and it ultimately deteriorates the health condition of those people and results in more fatigue and depression. Consequently, the potential alternatives are various and numerous; and the author should not conclude so hastily. To strengthen the argument, the author would be better conduct some survey on the possible reasons for disease.
To sum up, the author unfairly and unpersuasively substantiates his or her claim in the argument. Particularly, no justifiable evidence is presented for validating the causal relationship between the consumption of soy and suffering of fatigue and depression. Also, more survey concerning the cause of fatigue and depression is supposed to be implemented to recognize the true reason for disease and further the advised method could be proved valid. |
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