【最后的问题，请各位大侠助一臂之力。】

jeffery2541

以下5道题目的答案分别是CEABE

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1·这个题目不明白A选项错误的原因。还有C中，只说明revenue from making components for other consumer-electronics manufacturers占总的revenue比例大可以吗？并没有指明这部分本身的变化啊。
Denoma, a major consumer-electronics maker, had a sizable decline in sales revenue for its most recent fiscal year. This result appears surprising, because electronics retailers report that although their overall sales were considerably lower than in the previous year, their sales revenue from Denoma models actually grew, largely thanks to some innovative and popular models that Denoma introduced.
Which of the following, if true, does most to explain the apparently surprising result?
A . Because of the need to educate the public about its new models’ capabilities, Denoma’s advertising spending was higher than normal over the period.
B. For the period at issue, Denoma’s major competitors reported declines in revenue that were, in percentage terms, greater than Denoma’s.
C. A significant proportion of Denoma’s revenue comes from making components for other consumer-electronics manufacturers.
D. Unlike some of its major competitors, Denoma has no lines of business outside consumer electronics to provide revenue when retail sales of consumer electronics are weak.
E. During the period, consumer-electronics retailers sold remaining units of Denoma’s superseded models at prices that were deeply discounted from those models’ original prices.

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2·这个题目不明白E为什么正确？
Outbreaks of Rift Valley fever occur irregularly in East Africa, several years apart. When outbreaks do occur, they kill thousands of cattle. A livestock vaccine against the disease exists but is rarely used. It is too expensive for farmers to use routinely, and since it is not effective until a month after vaccination, administering it after an outbreak begins helps very little. Nevertheless, experts predict that use of the vaccine will increase significantly within the next few years.
Which of the following, if true, provides the strongest justification for the experts’ prediction?
A. Rift Valley fever is spread by mosquitoes, but each outbreak is so widespread that it is impractical to control it by using insecticides.
B. When an outbreak of Rift Valley fever occurs, unaffected countries often refuse to import livestock from the countries affected by the outbreak.
C. It would take less than a month for producers of the vaccine to adjust their production operations to cope with a large increase in demand.
D. Many cattle farmers in East Africa are nomadic or live in remote villages, and such farmers, who have little access to modern veterinary medicine, are particularly hard hit by outbreaks of Rift Valley fever.
E. Recently published research has shown that certain identifiable climatic conditions are almost invariably followed, within two to five months, by an outbreak of Rift Valley fever.

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3·这个题目整体都不是很明白，这个method of reasoning类型题目的stimulus在阅读的时候要注意哪些东西呢？我估计是没读懂逻辑意思。
X: In order to reduce the amount of plastic in landfills, legislatures should impose a ban on the use of plastics for packaging goods.
Y: Impossible! Plastic packaging is necessary for public safety. Consumers will lose all of the safety features that plastic offers, chiefly tamper-resistant closures and shatterproof bottles.
Which of the following best describes the weak point in Y's response to X's proposal?
A. Y ignores the possibility that packaging goods in materials other than plastic might provide the same safety features that packaging in plastic offers.
B. The economic disadvantages of using plastics as a means of packaging goods are not taken into consideration.
C. Y attempts to shift the blame for the large amount of plastic in landfills from the users of plastic packaging to the legislators.
D. Y does not consider the concern of some manufacturers that safety features spoil package appearances.
E. Y wrongly assumes that X defends the interests of the manufacturers rather than the interests of the consumers.

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4·这个题目不明白B选项的意思，以及B为什么正确？
Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally, deer ticks pick up the bacterium while in the larval stage by feeding on infected white-footed mice. However, certain other species on which the larvae feed do not harbor the bacterium. If the population of these other species were increased, more of the larvae would be feeding on uninfected hosts, so the number of ticks acquiring the bacterium would likely decline.
Which of the following would it be most important to ascertain in evaluating the argument?
A. Whether populations of the other species on which deer tick larvae feed are found only in areas also inhabited by white-footed mice
B. Whether the size of the deer tick population is currently limited by the availability of animals for the tick's larval stage to feed on
C. Whether the infected deer tick population could be controlled by increasing the number of animals that prey on white-footed mice
D . Whether deer ticks that were not infected as larvae can become infected as adults by feeding on deer on which infected deer ticks have fed
E. Whether the other species on which deer tick larvae feed harbor any other bacteria that ticks transmit to humans

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5·这个题目是个老问题了，做过好几遍，总是错。题目本身就不是很理解，我感觉我没有读懂原文的逻辑。求讲解，求指教。
Excavations of the Roman city of Sepphoris have uncovered numerous detailed mosaics depicting several readily identifiable animal species: a hare, a partridge, and various Mediterranean fish. Oddly, most of the species represented did not live in the Sepphoris region when these mosaics were created. Since identical motifs appear in mosaics found in other Roman cities, however, the mosaics of Sepphoris were very likely created by traveling artisans from some other part of the Roman Empire.
Which of the following is an assumption on which the argument depends?
A. The Sepphoris mosaics are not composed exclusively of types of stones found naturally in the Sepphoris area.
B. There is no single region to which all the species depicted in the Sepphoris mosaics are native.
C. No motifs appear in the Sepphoris mosaics that do not also appear in the mosaics of some other Roman city.
D. All of the animal figures in the Sepphoris mosaics are readily identifiable as representations of known species.
E. There was not a common repertory of mosaic designs with which artisans who lived in various parts of the Roman Empire were familiar.

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Jeffery先谢谢大家咯~

jeffery2541

睡前一顶~

jeffery2541

自习前再顶一下~

jeffery2541

回来顶一下~

SharonZ0902

第一题：

意思：D（生产商）销售收入下降, 但surprising，因为零售商说虽然零售商总销售收入下降，但D销售收入上升因为D创新。

A中说的是成本。我的理解是：利润=收入-成本。可是此题说的是收入，而不是说利润下降，所以成本不能导致收入下降。你肯定是把收入当成利润了。

C对。是因为零售商说零售商自己的总收入小了，卖D的产品多了，可以推出卖别的生产商的产品就少了。如果D主要的收入是来自给别的生产商制造零件。那别的生产商收入少了，他就也少了。

SharonZ0902

不过我想问你第一题怎么排除E的？

E选项中零售商把D产品打折销售了，正好也符合零售商总销售少，D卖的多，并且D收入少的所有条件啊。。。。

SharonZ0902

第二题：
E正确是因为E中说，在疾病来临之前一段时间会有奇怪的气候现象。
请注意看，题中是说 climatic conditions are ...........followed ....... by an outbreak of Rift Valley fever.是气候变化先，疾病后。

SharonZ0902

第三题：

意思：X说，为了减少垃圾中的塑料，应该立法ban掉所有的塑料包装。
Y说：不能啊，如果没了塑料那人们要lose很多塑料包装的好处，比如防震啦什么的。
问题是：weak point in Y's response to X's proposal。就是Y反驳X的时候weak在哪里？即weakenY。

A正确，说Y忽略了这种可能性：除塑料外别的包装也能起到塑料包装这种安全的防护作用。就是说ban掉塑料也没事。

这类题出到的比较少，所以我也没什么办法。我觉得这种题其实跟加强削弱差不多。

SharonZ0902

第四题：

B选项的意思:  the size of the deer tick population 有没有被tick在幼虫阶段available的食物所限制。
这题我也是纠结了好久问过很多人才得到的答案。
可以用yes no判断一下：若yes, 如果deer tick population被食物量限制了，即食物不够吃，那么我们增加别的无害的食物，tick还是会吃很多有害的以及那些无害的，因为食物不够吃嘛。 若no, tick的食物够吃的，那么如果增加别的无害的食物，那吃有害食物就少了。。嗯，虽然我觉得我们也不能确定在yes的情况下他们会先吃哪种，但是大致是可以这么理解的。

SharonZ0902

第五题：
Roman S地区那发现了很多mosaic depicting关于一些动物的。奇怪的是，这些画created的时候，这些动物都不live in S地区。
又说有一些相同的motif在Roman别的城市也出现了，所以题中认为是罗马帝国一些travelling的艺术家带过来的。问assumption.

E选项说在罗马时期没有一种共同的艺术形式是在各个地方都熟悉的，言外之意是说这种描绘的手段Ｓ地方的人不熟悉，只能通过其他地方的工匠带过去的，支持了结论。

这个我第一次竟然给蒙对了。后来做的时候就这么想的：题中结论是某地方没有某物，肯定是别人带过来的。那如果有一种形式是大家都熟悉的，不就削弱了么。所以不能有~就是E啦。