标题: [逻辑资料] 3月27日换题库了——GMAT逻辑新题讨论汇总（1-19题） [打印本页]
作者: rossyx 时间: 2011-3-31 13:15 标题: 3月27日换题库了——GMAT逻辑新题讨论汇总（1-19题）
1.垃圾回收问题
有个是说某个地方原来是全部把垃圾弄到一个垃圾场什么的，后来把那个plastic的给了一个private的地方专门回收，可以减少成本，
问assumption
两种不同处理垃圾方式的对比：1.弄到垃圾场
2.给private专门回收
结论：2号方案可以减少成本
分析：个人认为，假设就是要进行一个成本的对比即可
狗主人选：未来这个地区的人用plastic的数量不会下降。（不确定）
作者: rossyx 时间: 2011-3-31 13:16
2.OG的变体-鸟类是恐龙那道题
OG 中的原题出现了！（by piscesu）
Networks of blood vessels in bats’ wings serve only to disperse heat generated in flight. This heat is generated only because bats flap their wings. Thus paleontologists’ recent discovery that the winged dinosaur Sandactylus had similar networks of blood vessels in the skin of its wings provides evidence for the hypothesis that Sandactylus flew by flapping its wings, not just by gliding.
In the passage, the author develops the argument by
(A) forming the hypothesis that best explains several apparently conflicting pieces of evidence
(B) reinterpreting evidence that had been used to support an earlier theory
(C) using an analogy with a known phenomenon to draw a conclusion about an unknown phenomenon
(D) speculating about how structures observed in present-day creatures might have developed from similar structures in creatures now extinct
(E) pointing out differences in the physiological demands that flight makes on large, as opposed to small, creatures
类似有关鸟类和恐龙的题（by lestatwn）
V1：
Recently discovered fossil evidence casts doubt on the evolutionary theory that dinosaurs are more closely related to reptiles than to other classes of animals. Fossils show that some dinosaurs had hollow bones-a feature found today only in warm blooded creatures, such as birds, that have a high metabolic rates. Dinosaurs had well-developed senses of sight and hearing, which is not true of present-day cold blooded creatures like reptiles. The highly arched mouth roof of some dinosaurs would have permitted them to breathe while eating, as fast –breathing animals, such as birds, need to do.Today all fast-breathing animals are warm blooded. Finally, fossils reveal that many dinosaurs had a pattern of growth typical of warm-blooded animals.
The argument in the passage proceeds by
(A)Attempting to justify one position by demonstrating that an opposition is based on erroneous information.
(B)Establishing a general principle that it then uses to draw a conclusion
about a particular case
(C)Dismissing a claim made about the present on the basis of historical
evidence
(D)Assuming that if all members of a category have a certain property then all things with that property belong to the category
(E)Presenting evidence that a past phenomenon is more similar to one than the other of two present day
V2：
Paleontologists hypothesize that modern birds evolved from the family of dinosaurs that included Tyrannosaurus rex. This hypothesis would be strongly supported if evidence that dinosaurs from this family had a body covering resembling feathers could be found, but so far no such evidence has been found. Which of the following, if true, would most help the paleontologists explain why no evidence of feathered dinosaurs has yet been found?
1.Fossilized dinosaurs have shown many birdlike characteristics, such as bone structure and wing like arms.
2.If birds are in fact the descendants of dinosaurs, then it can be argued that the dinosaurs never really died out.
3.Flying dinosaurs such as the Pteranodon, which is not thought to have been related to modern birds, do not appear to have had feathers.
4.Soft tissues such as skin and feathers do not fossilize like bones, and therefore are far less likely to have left permanent evidence in the fossil record.
5.The thousands of dinosaur fossils excavated by paleontologists represent only a tiny fraction of the billions of dinosaurs that once lived.
作者: rossyx 时间: 2011-3-31 13:16
3.人类行走问题
ape进化来的某种动物（O开头的单词）被发现在树林里有时会直立行走。由此提供证据，人类不是在迁移到grassland后开始直立行走的，而是在树林里时就开始了。
weaken
原因：某物中被发现在树林中有时会直立行走
结论：人类在树林里就开始直立行走
推理：由一个发现得到一个结论，削弱要么就说明这个发现不具备代表性
答案推测：此物种没有进化为人类
作者: rossyx 时间: 2011-3-31 13:16
4. 动物栖息地问题
一个north-什么的地方（据推测应该是座山）有着super diversity of animals，讲到某个valley的地理情况，有关专家认为这是因为地质地理上的因素，然后很多动物就选择栖息在这片美好的土地上了，问选项中哪个best support the conclusion
推理：地理因素super diversity of animals
推测：一个特殊的因素导致了一个特殊的现象。那么结论很有可能是有这个因素会出现这个现象，没有这个因素不一定会出现这个现象。或者有这个现象肯定是因为这个因素之类的结论。
选项：south-什么地方的动物貌似不diverse；
deeper valley 生物更加diverse，狗主人选了，不确定（施主觉得这个像正确答案）
还有动物因为south-north orientation所以栖息
作者: rossyx 时间: 2011-3-31 13:17
5.犯罪率的问题
某市警察局在downtown安了很多camera防止犯罪，但是2005年的整个city的犯罪率还高于2004年
哪些答案解释了2005年犯罪率不降反升的原因：
推理：downtown安装了camera防止犯罪，但是整个城市的犯罪率升高。要注意，downtown和整个city的区别，解释的点肯定是在这点上。
作者: rossyx 时间: 2011-3-31 13:17
6.医院和烟税
某地准备新开一个医院，然后要征收cigarette tax，但是调查发现，如果征税的话那么来自于其他cigarette tax高的地方的烟民就不会在本地买烟了，这就使本地的收入大幅下降。
问：下列哪项是在征税之前政府必须考虑得：
选项：A．现在的税率是多少？
B. 本地的税率比外地的高多少？
分析：是不是征税和开医院间有联系？征税是为了建医院？如果这样的话，是不是要考虑，收入下降之后，钱是否还能够建起医院。
作者: rossyx 时间: 2011-3-31 13:17
10. 政府指导问题
一种治小孩子什么病的要最近几年用得很多，然后GOVERMENT发觉这样不好，就让少用，然后真的用量就减少了。所以，goverment 的指导是有用的。
Strenghen.
推理：用某种药不好政府让少用用药量减少政府指导有用
分析：要支持结论，那么就是证明政府的指导的确是导致了用药量的减少，没有他因导致用药量减少，比如新疗法，比如小孩得病减少。
狗主人选：我选的是得这种病的孩子的数量没减少（施主暂时觉得正确）
作者: rossyx 时间: 2011-3-31 13:18
11.医院费用支出问题
一个城市的一个医院（假设是A）要求减少病人在医院的开支，最后好像这个医院（A）治病的效果和其他三个医院差不多，病人在A的支出却少了很多。
assumption
狗主人选：这个医院没把需要大开销的病人送去其他医院（这是老题，施主确认是这答案）
作者: rossyx 时间: 2011-3-31 13:18
14.药的销售利润问题
关于药的effectiveness的research大多由公司来完成。某种药的patent问题导致它不是很profitable，所以那个药要sell的话除非它由政府funding来research它的effectiveness。问presumption
分析：某种药不profitable必须友政府funding来research its effectiveness
两者的联系不是很紧密，需要架桥来添加一个必要条件
狗主人选：某个要想sell的话首先必须要经过effectiveness的research。（施主觉得对）
作者: rossyx 时间: 2011-3-31 13:19
7.植物与环境污染问题
说是一个地方的居民喜欢栽长在水中的植物，他们会把多出来的一种植物倒进河里，污染环境。有个人说如果居民自觉点环境就不会被污染。
问weaken.
我选的风会把这种没根的植物带到远方。（这个还是比较确定……）
8.夜间新闻问题
有个关于夜间新闻的什么~说是夜间新闻是一种很好的资源，因为它的新闻量和什么是一样的……哎，人老了~记不住了。
问evaluate.
选wether 人们看夜间新闻的平均时间是否跟什么一样
9.小孩子安全问题
调查显示小孩子（系安全带）坐在前排比后排的受伤多，不系安全带时，也是前排受伤多，结论是要让孩子坐后排，
然后问assumption
此题有考古，今儿没时间弄了，sorry
13.禁止smoker在apartment里面抽烟的问题
12.摄像头问题
OG里面有，关于在街上安装摄像头的。请有兴趣的朋友考下古。
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