[问答] 请教下大家36套中的问题 [复制链接]

PhoenixZhou13
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电梯直达

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发表于 2014-7-12 14:15:57 |只看该作者 |倒序浏览

本帖最后由 PhoenixZhou13 于 2014-7-12 15:02 编辑

问题一：
36套中exercise3
In Hardy‘s novels, various impulses were sacrificed to
each other inevitably and often. Inevitably, because Hardy
did not care in the way that novelists such as
Line Flaubert or James cared, and therefore took paths of least
5  resistance. Thus, one impulse often surrendered to a
fresher one and, unfortunately, instead of exacting a
compromise, simply disappeared. A desire to throw over
reality a light that never was might give way abruptly to
the desire on the part of what we might consider a
10  novelist-scientist to record exactly and concretely the
structure and texture of a flower. In this instance, the new
impulse was at least an energetic one, and thus its
indulgence did not result in a relaxed style. But on other
occasions Hardy abandoned a perilous, risky, and highly
15  energizing impulse in favor of what was for him the
fatally relaxing impulse to classify and schematize
abstractly. When a relaxing impulse was indulged, the
style—that sure index of an author‘s literary worth—was
certain to become verbose. (167 words)

A desire to throw over reality a light that never was might give away abruptly to the desire on the part of what we might consider a novelist-scientist to record exactly and concretely the structure and texture of a flower.

想请教下大家这句话在文章中存在的意义是什么呢？对文章的架构有何用处？句子表面的意思能看懂，但是由于是文学评论类文章，表述比较抽象，所以就不懂作者真正想表达什么意思了。

问题二：
The essential condition for the decay of the vacuum is  the presence of an intense electric field. As a result of the  decay of the vacuum, the space permeated by such a field  can be said to acquire an electric charge, and it can be  called a charged vacuum. The particles that materialize in  the space make the charge manifest. An electric field of  sufficient intensity to create a charged vacuum is likely to  be found in only one place: in the immediate vicinity of a  superheavy atomic nucleus, one with about twice as many  protons as the heaviest natural nuclei known. A nucleus  that large cannot be stable, but it might be possible to  assemble one next to a vacuum for long enough to observe the decay of the vacuum.

7. The author‘s assertions concerning the conditions that lead to the decay of the vacuum would be most weakened if which of the following occurred?
  (A) Scientists created an electric field next to a vacuum, but found that the electric field was not intense enough to create a charged vacuum.
  (B) Scientists assembled a superheavy atomic nucleus next to a vacuum, but found that no virtual particles were created in the vacuum‘s region of space.
  (C) Scientists assembled a superheavy atomic nucleus next to a vacuum, but found that they could not then detect any real particles  in the vacuum‘s region of space.
  (D)Scientists introduced a virtual electron and a virtual positron into a vacuum‘s region of space, but found that the vacuum did not then fluctuate.
  (E) Scientists introduced a real electron and a real positron into a vacuum‘s region of space, but found that the total energy of the space increased by the energy equivalent of the  mass of the particles.

这道题我主要疑惑BC选项，它们的主要区别也是detect 和 were created,请问为什么选C，而B是错的呢？

期待收到大家的解答。谢谢啦！祝大家生活幸福~~~

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hijimoska
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沙发

发表于 2017-4-20 21:39:49 |只看该作者

你好，可能你已经不考GRE了，但是可能还会有别的考友在搜索这道题目，所以我想把我的见解写出来。
整个的逻辑链如下：
intense electric field in the vinicity of SAN(原文那个什么nucleus首字母缩写)---->decay of vacuum---->
intense electric field in the vinicity of SAN---->electric charge---->charged vacuum---->
intense electric field in the vinicity of SAN---->electric charge---->particles materialize in the space---->allows the decay of vacuum to happen

好了，那么，很多人疑惑的A选项，其实我认为它本身的逻辑就错了，并不是intense electric field直接的产生charged vacuum. 而且，这个A选项的意思是，是因为没有产生charged vacuum才导致的没有decay of vacuum，这个逻辑是与原文矛盾的。先有decay of vacuum, 才有charged vacuum.我觉得这样解释比较合理。
再说B选项。我认为选项中的virtual particle属于偷换概念。文章最后一段只是说particle 会 materialize在这个space中使得这个charged vaccum manifest，并没有说什么particles.而且，上文已经提到了virtual particles 本来就是转瞬即逝的不能被直接观测到。
最后，我们说C，这个particle 会 materialize在这个space中使得这个charged vaccum manifest。manifest，明显的，显然的，其实是在说没有particle, charge就不明显，不显然，所以particle的形成是charge形成的关键，从而组成电场，从而使vacuum decay了。

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