解决无根据假设等问题，GMAT写作完美！.

　　GMAT写作冲刺高分，但总是出现拉后腿的问题。考生想要拿下GMAT写作的高分，解决一下的这些问题势在必行。在GMAT写作考试中，考生经常犯的错误也无非就是这几种：无根据假设、材料不足、类比错误、非此即彼、可疑调查、静止看问题、无因果联系。下面小编就来和大家分别谈谈。

　　无根据假设

　　指得出的结论是毫无根据的，或者是前面的假设是不能成立的。

　　The author falsely depends on gratuitous assumption that.... However, no evidence is stated in the argument to support this assumption. In fact, this is not necessarily the case. For example, it is more likely that.... Therore, this argument is unwarranted without ruling out such possibility.

　　材料不足

　　是指给出的论据或例子不充分，不足以说明某个问题，不能支撑作者得出这样的结论。

　　The evidence the author provides is insufficient to support the conclusion drawn from it. One example is logically unsounded to establish a general conclusion, unless it can be shown that A1 is representative of all A. It is possible that.... In fact, in face of such limited evidence, the conclusion that B is completely unwarranted.

　　类比错误

　　把毫不相关的两个事物拿来作比较，并由此得出一些结论。

　　The argument rests on the assumption that A is analogous to B in all respects. This assumption is weak, since although there are points of comparison between A and B, there is much dissimilarity as well. For example, A..., however, B.... Thus, it is likely much more difficult for B to do....

　　非此即彼

　　即限制了结论的范围，按照非此即彼的观点得出结论。

　　The author assumes that AA and BB are mutually exclusive alternatives and there is no room for a middle ground. However, the author provides no reason for imposing an either-or choice. Common sense tells us that adjusting both AA and BB might produce better results.

　　可疑调查

　　指作者提供的证据是片面的或者是有限的，不能保证结论的顺利推出。

　　The poll cited by the author is too vague to be informative. The claim does not indicate who conducted the poll, who responded, or when, where and how the poll was conducted. Until these questions are answered, the results of the survey are worthless as evidence for the conclusion.

　　静止看问题

　　主要是指没有用发展的观点看待问题，拿过去的事例和现在的作对比，并由此得出结论。

　　The author commits the fallacy of “all things are equal”. The fact that happened two years ago is not a sound evidence to draw a conclusion that.... The author assumes without justification that the background conditions have remained the same at different times or at different locations. However, it is not clear in this argument whether the current conditions at AA are the same as they used to be two years ago. Thus it is impossible to conclude that....

　　无因果联系

　　是指作者给出的解释和得出的结论没有因果上的联系，或者是二者毫不相关。

　　The author commits a fallacy of causal oversimplification. The line of the reasoning is that because A occurred bore B, the former event is responsible for the latter. But this is fallacious reasoning unless other possible causal explanations have been considered and ruled out. For example, perhaps C is the cause of these events or perhaps B is caused by D.

　　考生要利用小编整理的这些问题来提醒自己不要在GMAT写作中出现这些错误，准确的掌握GMAT写作的主要反驳方法。考生要让自己的论证更加充分，更加有理有据。