GRE作文习作（argument）_GRE写作

GRE作文习作（argument）

　　In this argument ,the arguer claims that all athletes could win more games just by taking vitamin N along with a fiber supplement .To support this argument ,the arguer cites the recent discovery that the particular combination of vitamin N and fiber found in some nuts provides a boost for those who participate in strenuous physical activities daily .Unfortunately ,a careful and thorough analysis reveals several logical fallacies .

　　First of all ,the particular combination of vitamin N and fiber may could increase the athletes endurance .But there is no guarantee that eating them separately could also make effects .Moreover ,probably ,it is not the result of taking nuts but something other which the arguer ignores .Unless the arguer present more proofs ,otherwise ,we could not be convinced .

　　In addition ,the arguer fails to rule out other possibilities which could increase the athletes endurance as well ,and takes for granted that it is the vitamin N and fiber leading the increase of endurance ,but this argument is not sufficient to substantiate that this is the case .Probably ,the long-endurance athletes possess a stronger constitution and a healthy psychological quality ,which makes them look endurant .And the arguer fails to inform that the nuts eaten by athletes must contain vitamin N and fiber and the discovery cited in this argument could only tell us that some nuts not all contain vitamin N and fiber ,Therefore ,it is absolutely possible that it is not relevant to the vitamin N and fiber essentially .However ,granted that it is the contribution of the nuts ,it maybe some other ingredients other than the vitamin N and fiber .