2、非常理原则

　　对于常识的把握是我们和美国人最大的区别。美国人讲究“逻辑推理”(当然本身由于从小的教育，常识也就少一些)，我们讲究“常识推理”，而GMAT[微博]的题目是ETS按照美国人的思维方式来出的，我们应该注意减少常识，这样才能避免错误和迅速定位答案。我们来看一个例子。

　　例3、Samples from a ceramic vase found at a tomb in Sicily prove that the vase was manufactured in Greece. Since the occupant of the tomb died during the reign of a Sicilian ruler who lived 2,700 years ago, the location of the vase indicates that there was trade between Sicily and Greece 2,700 years ago。

　　Which of the following is an assumption on which the argument depends?

　　(A) Sicilian potters who lived during the reign of the ruler did not produce work of the same level of quality as did Greek potters。

　　(B) Sicilian clay that was used in the manufacture of pottery during the ruler’s reign bore little resemblance to Greek clay used to manufacture pottery at that time。

　　(C) At the time that the occupant of the tomb was alive, there were ships capable of transporting large quantities of manufactured goods between Sicily and Greece。

　　(D) The vase that was found at the Sicilian tomb was not placed there many generations later by descendants of the occupant of the tomb。

　　(E) The occupant of the tomb was not a member of the royal family to which the Sicilian ruler belonged。

　　翻译：在西西里的一个坟墓中发现的陶瓷花瓶的取样证明这个花瓶是在希腊生产的。因为坟墓的主人死于2700年前西西里某位君王的统治时期，所以这个花瓶的位置表明在2700年前西西里和希腊之间就已经有贸易了。