英语之家-免费英语学习网站
加入收藏 设英语之家为首页
当前位置: 英语之家>出国考试>GRE>

GRE逻辑题到底有什么难点?

2017-09-01 17:53 | 来源:英语学习网站 | 编辑:学英语

  》点击查看2017留学备考全攻略

dedecms.com

  GRE逻辑题有什么难的? 老师在上课:“逻辑题在GRE阅读中占比重并不大,但是令人震惊的是,逻辑题却能被分为boldface, assumption, inference, weaken, strengthen等等很多类别。” 本文来自织梦

  老师补充说到:“那要是我们不分类呢?那要是复习逻辑题也能同时复习作文呢?,逻辑题做对了阅读文章也更清晰了呢?保不齐还能提高口语水平呢?想要同时考GMAT的同学,,逻辑题占了verbal的1/3,GMAT数学中的data sufficiency也是在用逻辑。所以你要不要试一试好好学一学?” 内容来自dedecms

  开门见山,我们看这道题。

织梦内容管理系统

  In the past ten years, there have been several improvements in mountain-climbing equipment. These improvements have made the sport both safer and more enjoyable for experienced climbers. Despite these improvements, however, the rate of mountain climbing injuries has doubled in the past ten years.

本文来自织梦

  Which of the following, if true, best reconciles the apparent discrepancy presented in the passage?

织梦好,好织梦

  A. Many climbers, lulled into a false sense of security, use the new equipment to attempt climbing feats of which they are not capable.

dedecms.com

  B. Some mountain-climbing injuries are caused by unforeseeable weather conditions. 织梦好,好织梦

  C. Mountain climbing, although a dangerous sport, does not normally result in injury to the experienced climber. 本文来自织梦

  D. In the past ten years there have been improvements in mountain-climbing techniques as well as in mountain-climbing equipment. 织梦内容管理系统

  E. Although the rate of mountain-climbing injuries has increased, the rate of mountain-climbing deaths has not changed.

copyright dedecms

  一句话来概括就是:登山设备性能提高反而造成登山死亡率升高。 本文来自织梦

  要选择一个选项去和解这个矛盾。而且这个选项必须是合理的并且完全可以通过已知信息推出来的。经常出现的混淆视听的选项可能有哪些?

copyright dedecms

  比如,登山人数增多。但是由于题干中已经指出说是死亡率(百分比死亡人数)增高,所以绝对人数并不能解释此现象。所以,留给我们的有用信息只有—登山设备性能提高这一个条件而已。那么什么衍生行为能够被登山设备性能提高这一条件直接合理影响并且可以造成死亡率升高的结果呢?

本文来自织梦

  人们开始变的更作了呗!所以此题应该选A。 织梦内容管理系统

  看完了简单题,那我们看一个难一点的。

织梦好,好织梦

  A photograph from 1843 is sometimes claimed to be the earliest surviving portrait of Abraham Lincoln (1809-1865), sixteenth President of the United States. The photograph shows a face without a cleft chin, whereas Lincoln’s chin was cleft. However, since skilled retouching of a photographic negative can undetectably change a feature such as a cleft chin in portraits produced from the negative, absence of a cleft chin is inconclusive as evidence that the photograph is not Lincoln.

dedecms.com

  Which of the following, if true, most seriously undermines the argument 织梦内容管理系统

  A. Few of the authenticated photographs of Lincoln show his cleft chin, since during his presidency (1860-1865) he was bearded.

织梦好,好织梦

  B. An authenticated photograph of Lincoln taken in 1846 clearly shows a cleft chin.

copyright dedecms

  C. The photograph was made by the daguerreotype process, an early photographic process in which no negative was produced. 织梦内容管理系统

  D. The 1843 photograph differs from authenticated photographs of Lincoln from the time before he was President in that those photographs show a man with a sunburned face and wearing rough clothes.

dedecms.com

  E. There is no surviving documentary evidence from Lincoln’s letters or elsewhere that he sat for a photograph at any time before 1846. copyright dedecms

  逻辑关系是:由于在负片上可以运用美图技术,所以即使照片的下巴和真人的不太一样,所以并不能说明照片不是林肯。

copyright dedecms

  我们要做的是什么:削弱这个结论,所以我们目标要建立的结论应该是:能说明这个照片不是林肯。

dedecms.com

  跟上一道题一样,结论简历在一个假设上,这个假设为:负片上可以运用美图技术。

本文来自织梦

  所以我只要证明这个假设不成立即可:比如1,没有负片;2,不会美图。 内容来自dedecms

  所以 此题应该选C。

dedecms.com