GRE写作Argument部分有七种常犯的逻辑错误。从这七个方向去发掘Argument的错误会帮助考生快速定位，打开思路。下面是出国留学网整理的新GRE写作Arg部分七宗罪，欢迎阅读。
第一宗罪：无因果联系
The author commits a fallacy of causaloversimplification. The line of the reasoning is that because A occurred beforeB, the former event is responsible for the latter. (The author uses thepositive correlation between A and B to establish causality. However, the factthat A coincides with B does not necessarily prove that A caused B.) But thisis fallacious reasoning unless other possible causal explanations have beenconsidered and ruled out. For example, perhaps C is the cause of these eventsor perhaps B is caused by D.
第二宗罪：样本不足 (Insufficient-sample)
The evidence the author provides isinsufficient to support the conclusion drawn from it. One example is logicallyunsounded to establish a general conclusion (The statistics from only a fewrecent years are not necessarily a good indicator of future trends), unless itcan be shown that A1 is representative of all A.
第三宗罪: 错误类比 (based on a false analogy ) <横向>
The argument rests on the assumptionthat A is analogous to B in all respects. This assumption is weak, sincealthough there are points of comparison between A and B, there is muchdissimilarity as well. For example, A..., however, B.... Thus, it is likelymuch more difficult for B to do....
第四宗罪：时地全等 all thingsare equal