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GMAT逻辑GWD-10例题解析(一)

信息来源:网络  发布时间:2016-05-07

  因为GWD语文套题中的题目数量和题目排列多以考试为准,所以逻辑题单独拿出来分析在题号上有跳跃性,大家可以对应原版的试题来练习。

  GWD-10-Q9

  Although exposure to asbestos is the primary cause of mesothelioma, a slow-developing cancer, researchers believe that infection by the SV40 virus is a contributing cause, since in the United States 60 percent of tissue samples from mesotheliomas, but none from healthy tissue, contain SV40. SV40 is a monkey virus; however, in 1960 some polio vaccine was contaminated with the virus. Researchers hypothesize that this vaccine was the source of the virus found in mesotheliomas decades later.

  事实一:(尽管)接触了A是引发一种慢性发展癌症(M)的主要原因。

  事实二:(但由于)在美国M病人的组织标本中有百分之六十带有SV40,但在健康人的组织标本中却没有一例发现有SV40,所以研究者相信感染了SV40也是引起M病的一个原因。

  事实三:SU40是一种猴子病毒,但是在1960年有一批小儿麻痹症疫苗感染了这种病毒。

  结论:研究学者怀疑在M病人组织标本中发现的SV40的来源就是这批感染了病毒的疫苗。

  Which of the following, if true, most strongly supports the researchers’ hypothesis? 下面哪一个选项可以加强研究学者的hypothesis? (所谓研究学者的hypothesis,就是说因为注射了感染了病毒的疫苗而让有些人得了M病)

  SV40 is widely used as a research tool in cancer laboratories.一,在实验室里广泛被应用不等于得了M病的病人用;二,即使病人用,也不知道是在得病前还是得病后用。无关。

  Changes in the technique of manufacturing the vaccine now prevent contamination with SV40. 现在的疫苗和是不是以前的疫苗让人们得了M病没关系。

  Recently discovered samples of the vaccine dating from 1960 still show traced of the virus.即使那批疫苗现在已经没有病毒了,但是无法否认当初是有的。而结论在于说由于当初注射了这批疫苗而让人生了M病,而M这病是慢性发展的,所以不是今天发病的人是因为今天体内的病毒辣才开始发挥作用。

  In a small percentage of cases of mesothelioma, there is no history of exposure to asbestos. 小比例的样本永远说明不了问题,不能拿部分当成全部。

  In Finland, where the polio vaccine was never contaminated, samples from mesotheliomas do not contain SV40.消弱结论的有一个可能就是这个SV40不一定是通过疫苗进入体内的,也可能得了这个病以后身体会产生SV40。这个选项的意义在否定了这个可能性-----不是所有的M病都会有SV40这种病毒。同题干提供的信息一样和想要建立的结论相联系:这个病可能有两种原因引起,一种是接触了A这种物质,一种是注射了疫苗。而这两个原因引起的区别在于:如果没有注射了含病毒的疫苗,即使得了这个病,身体里面也不会有SV40;也就是说不是得了这病身体里面才有的SV40,因果关系的顺序是先SV40再M.正确。

  此题争论颇多,以上是我个人的理解。请大家多看看讨论再做你的选择。但这题我对LAWYER的解释有不同的看法,在题干中已经说了这病是个慢性发展的病,也就是说不管是感染了SV40或者是接触了A这种物质,到真正发展成M这个病是一个缓慢的过程。所以C选项中的病素有可能现在失效,但在当初注射进人体里的时候是存在的,那么病人实际上就在那一刻开始了向M病发展的过程。

  GWD-10-Q14

  Yeasts capable of leavening bread are widespread, and in the many centuries during which the ancient Egyptians made only unleavened bread, such yeasts must frequently have been mixed into bread doughs accidentally. The Egyptians, however, did not discover leavened bread until about 3000 B.C. That discovery roughly coincided with the introduction of a wheat variety that was preferable to previous varieties because its edible kernel could be removed from the husk without first toasting the grain.

  用发酵物来发酵面包是被广泛利用的。古埃及在许多世纪里都只做没有发酵的面包,那些发酵物一定是在无意间加到面团里去的。然而埃及人在3000.B.C前并没有发现怎么样去发酵面包。他们发现(可以用发酵物发面包)是和引进更好的小麦品种的时间相吻合的。因为新的小麦品种的可食用的谷粒可以不需要先烘就可以从外皮中除去。

  Which of the following, if true, provide the strongest evidence that the two developments were causally related?

  Even after the ancient Egyptians discovered leavened bread and the techniques for reliably producing it were well known, unleavened bread continued to be widely consumed. 把这句话加到题干中去,两句话仍然是没有联系,反正我是仍然没看懂。

  Only when the Egyptians stopped the practice of toasting grain were their stone-lined grain-toasting pits available for baking bread.就是说埃及人以前用来烤谷子的架子现在没用了,但是埃及人不愿意让这个架子空着没用,所以拿来烤其它东西。就算我们相信埃及人的架子那么不够,或者他们那么不能容忍让设施闲置,但我们怎么知道这个利用闲置物品和他们知道主动的去用发醇物有什么必然联系呢?

  Heating a wheat kernel destroys its gluten, a protein that must be present in order for yeast to leaven bread dough.正确。因为以前烤谷子,而谷粒里有种蛋白质被破坏了,没有这种蛋白质发酵物就不起作用。现在不需要烤了,就发现了无意加入面团里的发酵物的作用。

  The new variety of wheat, which had a more delicate flavor because it was not toasted, was reserved for the consumption of high officials when it first began to be grown.谁吃它和发现发酵物在作面包中的作用没关系。

  Because the husk of the new variety of wheat was more easily removed, flour made from it required less effort to produce 现在谈的是发酵,没谈制作面粉容不容易。

  GWD-10-Q15

  Which of the following most logically completes the argument below?

  Although the number of large artificial satellites orbiting the Earth is small compared to the number of small pieces of debris in orbit, the large satellites interfere more seriously with telescope observations because of the strong reflections they produce. Because many of those large satellites have ceased to function, the proposal recently been made to eliminate interference from nonfunctioning satellites by exploding them in space. This proposal, however, is ill conceived, since .

  尽管现在绕着地球转的大型人工卫星数量比那些围着地球转的小的碎片数量要少,但是由于其更强的反射,所以大的卫星可能对天文镜观测的有着更大的干扰。因为有些大型卫星已经停止运行,所有有提议说应该让它们在太空引爆以消除这些没有卫星对天文镜观测的影响。这个提议是不能让人令人信服的,因为。。。。。

  many nonfunctioning satellites remain in orbit for years 存在很多年不等于就应该继续存在。存在很多年也不等于对天文观测没有影响。

  for satellites that have ceased to function, repairing them while they are in orbit would be prohibitively expensive 既然修理太贵,不修理它们就在那儿转呀转的影响天文观测,那不如引爆它们?这是在帮提议方说话,所以不是正确答案。

  there are no known previous instances of satellites’ having been exploded on purpose 没做过不是不应该做的理由。

  the only way to make telescope observations without any interference from debris in orbit is to use telescopes launched into extremely high orbits around the Earth 现在没有讨论减少小碎片对天文观测的影响,无关。

  a greatly increased number of small particles in Earth’s orbit would result in a blanket of reflections that would make certain valuable telescope observations impossible 就是爆了会产生更多的小碎片,而更多的小碎片会更影响天文观察。也就是说实际结果和希望目标是背道而驰的。正确。

  GWD-10-Q17

  Editorial:

  An arrest made by a Midville police officer is provisional until the officer has taken the suspect to the police station and the watch commander has officially approved the arrest. Such approval is denied if the commander judges that the evidence on which the provisional arrest is based is insufficient. A government efficiency expert has found that almost all provisional arrests meet standards for adequacy of evidence that watch commanders enforce. The expert therefore recommends that the watch commander’s approval should no longer be required since the officers’ time spent obtaining approval is largely wasted. This recommendation should be rejected as dangerous, however, since there is no assurance that the watch commanders’ standards will continue to be observed once approval is no longer required.

  社论:M地警察逮捕的程序:警察把犯罪嫌疑人带到警署后,由检查指挥官正式同意逮捕。如果检查指挥官认为这个先行逮捕的证据不够,他将不会签发正式的逮捕令。一个政府部门的效率专家建议应该把这个逮捕的审查程序去掉,因为几乎所有的先行逮捕都被证实是证据充分的。这个建议是应该被否定的,因为它具有危险性。因为如果不存在这个审查程序,那么现在执行的逮捕标准就没有保障可以继续地被执行下去。

  In the editorial, the two portions in boldface play which of the following roles?

  The first is a recommendation made by the editorial; the second acknowledges a potential objection against that recommendation. 第一个是效率专家的意见,而不是社论的。

  The first is a proposal against which the editorial is directed; the second is a judgment reached by the editorial concerning that proposal.正确。

  The first provides evidence in support of a recommendation that the editorial supports; the second is the conclusion reached by the editorial.第一个是社论反对的,而不是支持的。

  The first is a position that the editorial challenges; the second is a judgment that was made in support of that challenged position.第一个不是Positon,而是proposal.

  The first is a recommendation that the editorial questions; the second provides evidence against that recommendation. 第一个是社论明确反对的,而不仅仅是质疑的。

  GWD-10-Q19

  Which of the following most logically completes the passage?

  A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. Subsequently, the rate of liver cancers among those islanders increased sharply. The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein. This result is relevant because .

  一个热带岛屿的居民接受了捐赠的奶粉,这些奶粉分给了这个岛屿上最穷的居民,因为觉得他们营养不足。紧接着,这个岛上的肝癌发病率大幅度上升。其原因可能是这些被捐来的奶粉,最近的实验室研究表明:实验的老鼠在接触到A这种物质的情况下,如果再给它吃C这种牛奶蛋白质的话,就容易得肝癌。这个结果是(和岛上得肝癌的人多了)相关的, 因为。。。。。。

  in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin. 就是说这个地区的居民通常会接触到A物质,然后又喝了牛奶,所以得了肝癌。正确。

  the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs. A物质在致病中的原因不在讨论范围。

  casein is not the only protein contained in milk. 结论的推出接触了A,然后吃C,就有可能得肝癌,这和C是不是唯一的蛋白质没关系。

  powdered milk is the most appropriate form in which to send milk to a tropical destination. 为什么送奶妢不送其它的是得肝癌的人想问的问题,但不是这个我们需要要的正确答案。

  the people who were given the donated milk had been screened for their ability to digest milk. 可以消化牛奶和喝了牛奶怎么就得了肝癌没有联系。

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