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GRE阅读题目解析:近距离观察奇点

2017-03-02 09:16:00来源:网络

  P3

  1

  It would be wonderful to observe a singularity (an infinitely dense concentration of matter) and obtain direct evidence of the undoubtedly bizarre phenomena that occur near one.

  能够近距离观察一个奇点(物质密度无穷大),掌握它周围发生的这种无疑称得上奇观的直接证据,该多好啊。

  2

  Unfortunately, in most cases a distant observer cannot see the singularity; outgoing light rays are dragged back by gravity so forcefully that even if they could start out within a few kilometers of the singularity, they would end up in the singularity itself.

  可惜,大多数情况下,有距离的观测者看不到奇点;外逃的光线会被重力拖回,即便它们射出了数千米,也会终结于奇点。

  6. Which of the following sentences would most probably follow the last sentence of the passage?

  (A) Thus, a physicist interested in studying phenomena near singularities would necessarily hope to find a singularity with a measurable gravitational field.

  (B) Accordingly, physicists to date have been unable to observe directly any singularity.

  (C) It is specifically this startling phenomenon that has allowed us to codify the scant information currently available about singularities.

  (D) Moreover, the existence of this extraordinary phenomenon is implied in the extensive reports of several physicists.

  (E) Although unanticipated, phenomena such as these are consistent with the structure of a singularity.

  选B。

  A “因此,感兴趣的物理学家在奇点附近将必定可期通过一个可测量的引力场来确定奇点。” 文中没有信息能够引出这种推论。

  “GRE文字推理部分,如果你没有背景知识——是一种幸运,倘若不幸具备一些背景知识——切记要非常谨慎地使用(尽量别用),一切从文本和常识出发。”

  C 不 allow,完全看不出 allow 。

  D 不知道,理由同上。

  E 不知道什么是 the structure of a singularity,电影倒是讨论过关于这个话题,比如《星际穿越》。

  以上就是新东方在线GER频道为你带来的GRE阅读题目解析:近距离观察奇点,更多精彩敬请关注新东方在线GRE频道。

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