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GMAT逻辑加强题解题方法

信息来源:网络  发布时间:2016-03-10

  GMAT逻辑加强题与削弱题不仅文章结构相似,连解题方法 也有很多想通之处,只是问题的提问方向和答案的选择方向相反,相信看完小编的介绍大家会有所了解。

  一、GMAT逻辑加强题分析

  1、GMAT逻辑加强题结构分析。

  演绎文章存在一个最主要的“原因和结论”——加强题/假设题/加强题/评价题都使用“演绎文章”。

  演绎文章的描述问题的方法有两种:原因推出结论(AB型)和结论揭示原因/现象解释(BA型)。

  1)原因推出结论(AB型)文章的通常形式为:since A, B; A, therefore B; A, conclude B; A, clearly B; A, obviously B; A, indicate/show B; Plan A to B.

  2)结论解释原因(BA型)文章的通常形式为:B is due to A; B is attributed to A; B is resulted from A; blame B on/for A.

  2、GMAT逻辑加强题基础知识。

  1)加强题的定义。

  加强题意在让结论成立,提高结论成立的可能性,表达与结论类似的观点,都属于支持题,目的是选出能够使得文章结论成立的答案。

  2)加强题的标志:

  1)标志词: support, strengthen, conclusion, can be drown if it were true that…

  2)典型问法。

  The answer to which of the following questions would be most important in determining whether implementing the proposal would be likely to achieve the desired result?

  In assessing the plan’s chances of achieving its aim, it would be most useful to know which of the following?

  (详情请看 GMAT逻辑加强题综述)

  二、GMAT逻辑加强题考察形式分类

  1、“措施”类文章:如果文章中含有政府/公司/个人的某一个措施。

  例如:为了获得足球奥会金牌零的突破,奥委会特批中国男足在奥运会后,直接参加残奥会。

  正确答案:

  1)此措施的目的由于一个原因可达到:

  文章特点:文章中出现了目的。

  答案特点:会出现一个和目的相关的原因。

  2)别的措施不好:

  文章特点:文章中出现别的措施。

  选项特点:含有别的措施。

  3)注意事项:不能说“自己的措施怎么了”;“新原因”跟目的很相关。

  2、现象解释文章(通常BA型)正确选项:A否àB否。

  3、加强后部(适用AB和BA)。

  正确答案:

  1)简单重复后部(会换词)。

  2)提高结论成立的可能性。

  注意:“互补性选项”和“补差异”型选项

  4、对文章的原因或结论处进行解释。

  正确答案:

  1)解释原因的弱点。

  2)解释结论(文中无原因)。

  (详情请看 GMAT逻辑加强题图解分析法)

  三、GMAT逻辑加强题例题分析

  Male bowerbirds construct elaborately decorated nests, or bowers. Basing their judgment on the fact that different local populations of bowerbirds of the same species build bowers that exhibit different building and decorative styles, researchers have concluded that the bowerbirds’ building styles are a culturally acquired, rather than a genetically transmitted, trait.

  Which of the following, if true, would most strengthen the conclusion drawn by the researchers?

  (A) There are more common characteristics than there are differences among the bower-building styles of the local bowerbird population that has been studied most extensively.

  (B) Young male bowerbirds are inept at bower-building and apparently spend years watching their elders before becoming accomplished in the local bower style.

  (C) The bowers of one species of bowerbird lack the towers and ornamentation characteristic of the bowers of most other species of bowerbird.

  (D) Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another.

  (E) It is well known that the song dialects of some songbirds are learned rather than transmitted genetically.

  例题分析:

  1、逻辑关系:

  原因:异地同种的B鸟建成的鸟巢风格各异。

  结论:B鸟建筑风格是后天获得,而非基因遗传。

  2、正确项:选项二。

  小雄鸟最初不会造巢,观看老鸟几年后,就能造出同风格的巢,说明是后天习得的,支持。

  3、其它选项:

  选项一:本地B鸟建筑风格的共同点多于不同点,新的比较。

  选项三:有种B鸟的巢不具有其他B鸟巢中的塔和装饰特点,无关。

  选项四:B鸟只出现于澳大利亚的某地区,此处鸟与鸟之间不接触,无关。

  选项五:有些鸟的叫声是后天的,而非先天,无关。

  (详情请看 GMAT逻辑OG13逻辑第23题)

  GMAT逻辑加强题小编通过例题分析已经为大家讲解了解题方法,加强题和削弱题是从不同方向对题干进行评估,掌握好原文中隐含的逻辑关系,解答这两种题型并不困难。

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