下面小编采用的方法不是我们常说的写作“七宗罪”，而是从一些具体的细节性的问题出发总结的，希望这些类型能在大家实际操作写作时派上用场。
一、vested interest特定利益集团
范本
we have strong reason to question the credibility and neutrality of the survy in which the conductor has vested interest and, therefore is inclined to manipulate the figures to his own advantage.
Of the remarks made by XX, who has invested interest and therefore is prone to take the position to his own advantage.
二、specious evidence证据可疑(数字/事实)
if so, the facts/statistics indiates nothing about ……, and thus renders/causes the author's conclusion based on it inconvincing.
I would suspend my judgemment about the author's conclusion until the author can provide more complete,concrete evidence or information about..
三、statistical evidence统计证据
insufficient samples样品是否足够大
the second problem with this argument involves the insufficiency of samples used in this study. ……might not be sufficient to …… lacking information about the number how many…… were reported at the end of the study, it's unreasonable to draw any credible/ convincing conclusion that.../about....
四、respondents受访者
one problem with this argument is that the respondents' views are not necessarily representative of/ may not necessarily reflectc the views of the workers in general. For example, because the survery has to do with apathy, it makes sense that only less apathetic workers would respond to it, thereby distorting the overall picture of apathy among workers. without knowing how the survey was conducted, it is impossible to assess whether or not this is the case.受访者能否代表?
Sample的规模?
Randomness随机抽样吗?
a threshold problem with the argument involves the statistcal reliability of the survey. The director provides no evidence that the number of respondents is statistically significant or that the respondents were representative of … in gerneral. Lacking information about the randomness and size of the survey's sample, the director cannot make a convincing argument based on that survey.
五、information too vague
the information provided in this program/ the poll cited by the author… is too vague to be informative…
the claim does not indicate who conducted the survey, who responded, or when, where and how the survey was conducted.
Lacking information about the number of people surveyed and the number of the respondents, it is impossible to assess/value the validity of the results. for example,200人，只有百分之二回应，那么结果没有意义。 because the argument offers no evidence that would rule out this kind of interpretation/ explanation, the results of the survey is worthless as basis for the conclusion.
关于survey…
操作人，受访者，回答者，
以上是GMAT写作一些论据错误的类型，大家可以找准方向从这些角度攻击。
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