【每日逻辑链练习贴】【逻辑1-4】

抓抓sandra · 发表于 2011-8-9 20:58:32

貌似都算比较长…sigh…明天来被虐…
逻辑汇总贴：http://forum.chasedream.com/GMAT_CR/thread-580862-1-1.html
阅读姊妹篇：http://forum.chasedream.com/GMAT_RC/thread-562296-1-1.html
#1 LSAT TEST1 SECTION I Q10
Some people say that the scarcity of food is a function of the finite limits of the earth’s resources, coupled with a relentless rate of population growth. This analysis fails to recognize, however, that much of the world’s agricultural resources are used to feed livestock instead of people. In the United States, for example, almost one-half of the agricultural acreage is devoted to crops fed to livestock. A steer reduces twenty-one pounds of inexpensive grain to one pound of expensive meat. Thus, the scarcity of food is not merely a function of limited resources and population growth.

Which one of the following is an assumption that would allow the conclusion in the argument to be properly drawn?

#2 LSAT TEST1 SECTION I Q15
One of the more reliable methods of determining regional climatic conditions in prehistoric periods is to examine plant pollen trapped in glacial ice during ancient times. By comparing such pollen samples with spores taken from modern vegetation, scientists can figure out approximately what the weather was like at the time of pollen deposition. Furthermore, by submitting the prehistoric samples to radiocarbon dating techniques, we can also determine when certain climatic conditions were prevalent in that portion of the globe.

Which one of the following may be inferred from the information in the passage?

#3 FEIFEI LOGIC Q7
Problems caused by the leaching of pollutants from dumps and landfills are worst in countries with an annual per capita economic output of $4,000 to $5,000, and less severe for considerably poorer and considerably richer countries. This is so because pollution problems increase during the early stages of a country’s industrial development but then diminish as increasing industrial development generates adequate resources to tackle such problems. Therefore, problems caused by such leaching in Country X, where the annual per capita economic output is now $5,000, should begin to diminish in the next few years.

Which one of the following is an assumption on which the argument depends?

#4 FEIFEI LOGIC Q10
10. In order to pressure the government of Country S to become less repressive, some legislators in Country R want to ban all exports from R to S. Companies in R that manufacture telecommunication equipment such as telephones and fax machines have argued that exports of their products should be exempted from the ban, on the ground that it is impossible for a country to remain repressive when telecommunication equipment is widely available to the population of that country.

Which one of the following is an assumption on which the argument given by the manufacturers depends?

#5 FEIFEI LOGIC Q13
13. In 1712 the government of Country Y appointed a censor to prohibit the publication of any book critical of Country Y’s government; all new books legally published in the country after 1712 were approved by a censor. Under the first censor, one half of the book manuscripts submitted to the censor were not approved for publication. Under the next censor, only one quarter of the book manuscripts submitted were not approved, but the number of book manuscripts that were approved was the same under both censors.

If the statements in the passage are true, which one of the following can be properly concluded from them?

balapupu · 发表于 2011-8-9 23:35:07

先顶下~~明儿去单位偷偷做~~嘎嘎~~

fox0923 · 发表于 2011-8-10 11:41:47

抓抓后面就是我了，明天可不能忘记放，闹钟~~~

balapupu · 发表于 2011-8-10 11:45:24

1。[42s]世界的粮食短缺是由地球有限的资源不足人口的增加导致的－－》其实并不是这样，世界很多的的粮食资源都喂牲口了－》比如：美国每二分之一亩的的农业资源用来喂牲口，21磅的廉价稻谷转化成一磅的肉－－》资源有限和人口增加并不是是世界粮食短缺的唯一原因。
Assumption：这些廉价的稻谷也是可以转化成人的食物。
2。研究P时期气候的的有效方法是研究其冰闪体内的花粉－－》通过比较这个花粉和现代植物的花粉－－》我们可以有效的推断出当时的气候现象。－－》并且通过放射机器对古时期的样本进行研究，我们可以得出什么时候这种气候开始流行。
可以infer：这个想不出。。。
3。【30s】环境问题在经济出口在4000刀到5000刀的国家最为严重－－》而更富裕或者是更贫穷的国家环境问题反而不严重－－》这是因为，一个国家在工业发展的初期，会造成大量环境污染，而当经济发展到一定水平之后，国家会有能力来治理这些污染－－》所以某城市，现在的出口是5000刀，但是将来它的环境污染问题会减轻。
assumption:环境问题只和一个国家的经济能力有关。（排除它因）

balapupu · 发表于 2011-8-10 13:15:08

4、【41s】为了遏制S政府不要太消极，R政府想采取措施禁止所有从R到S的出口－－》在R出口电话和打印机的供应商说它们的产品应该免除这种禁止——》因为当沟通工具很流行的时候，保持一个国家的消极是不肯能的。
Assumption：R过得电话和打印机设备有利于提高S国的沟通水平。
5。【50s】在1712年，政府Y设置了一些检查员来管制发行任何攻击政府的书。－－。在1712年之后，有一半的书被第一任检查员。之后，四分之一的书被第二任检查员禁止。－－》但是，两任检查员任期中，发行的书的数量是一样的。
conclude：在第二任检查官的任期中，总共提交的书变少了。

superbat28 · 发表于 2011-8-10 15:35:49

1.54s 第一题我败了。。没看懂最后一句话和前文有什么关系。。
Con: The food shortage is not the result of population growth and limited sources
Premise: In US, half of the acreage is used for livestock

Assumptions: 1. The US case is representative
2. If we remove those acreage, which is used to feed livestock, we would have enough crops for people
3. Those acreage can be suitable for crops that people can consume

2. 45s
Info1: One method to estimate prehistoric condition is to evaluate the pollen in the glaciers
Info2: We can compare those pollens with modern ones
Info3: We can send those pollens to carbonradio to see what was the climate like

Inference: Thus, the condition could be estimated?!!!!! 不知道，过会我去查查答案吧还是。。

3. 44s
Con: Country X, GDP is 4,000, would diminish the pollutant problem
Premise: 4000-5000的country has the most serious pollutant problem, once it is higher, the problem diminishes

Assumption: The GDP can still go up in Country X

4. 50s…我去，这题好可怕啊。。读了两遍我才明白要说啥。。。
Con: Telecommunication manufacturer should still export to Country S
Premise: it is impossible for a country to remain repressive when telecommunication is widely available

Assumption: 依旧不知道。。觉得有问题啊。。莫非是，country S出口的电话和其本国生产的不一样？！

5. 40s
Info1: publication need censor
Info2: The first censor 1/2 not approved, the second censor 1/4 not approved
Info3: The absolute number approved is the same

Infer: The absolute number under the second censor is smaller than the first one.

superbat28 · 发表于 2011-8-10 15:37:28

4、【41s】为了遏制S政府不要太消极，R政府想采取措施禁止所有从R到S的出口－－》在R出口电话和打印机的供应商说它们的产品应该免除这种禁止——》因为当沟通工具很流行的时候，保持一个国家的消极是不肯能的。
Assumption：R过得电话和打印机设备有利于提高S国的沟通水平。
5。【50s】在1712年，政府Y设置了一些检查员来管制发行任何攻击政府的书。－－。在1712年之后，有一半的书被第一任检查员。之后，四分之一的书被第二任检查员禁止。－－》但是，两任检查员任期中，发行的书的数量是一样的。
conclude：在第二任检查官的任期中，总共提交的书变少了。

-- by 会员 balapupu (2011/8/10 13:15:08)

我觉得第四题好纠结。。
S的电话供应商先声称：当沟通工具流行的时候，保持一个国家消极是不可能的。
然后又说：我们应该从出口禁令中豁免。。意味着，这些供应商又想去给那个国家出口沟通工具。。

啊！！！我懂了。。我漏掉第一句话了T T
露怯了。。。

balapupu · 发表于 2011-8-10 16:14:53

[quote]

4、【41s】为了遏制S政府不要太消极，R政府想采取措施禁止所有从R到S的出口－－》在R出口电话和打印机的供应商说它们的产品应该免除这种禁止——》因为当沟通工具很流行的时候，保持一个国家的消极是不肯能的。
Assumption：R过得电话和打印机设备有利于提高S国的沟通水平。
5。【50s】在1712年，政府Y设置了一些检查员来管制发行任何攻击政府的书。－－。在1712年之后，有一半的书被第一任检查员。之后，四分之一的书被第二任检查员禁止。－－》但是，两任检查员任期中，发行的书的数量是一样的。
conclude：在第二任检查官的任期中，总共提交的书变少了。

-- by 会员 balapupu (2011/8/10 13:15:08)

我觉得第四题好纠结。。
S的电话供应商先声称：当沟通工具流行的时候，保持一个国家消极是不可能的。
然后又说：我们应该从出口禁令中豁免。。意味着，这些供应商又想去给那个国家出口沟通工具。。

啊！！！我懂了。。我漏掉第一句话了T T
露怯了。。。

-- by 会员 superbat28 (2011/8/10 15:37:28)

[/quote

其实我也是想了半天在明白过来的～～嘿嘿～～～

裤裤melo · 发表于 2011-8-10 18:29:24

抓抓你什么时候搞了一个这个帖子啊

daisyの小夢想 · 发表于 2011-8-10 21:58:28

1. 47s
Opinion: Scarcity is the result of the finite limit of earth resources and growth of population.
Refutations:
Only a number of corps are used to produce food for humans.
A great deal of corps are used to feed livestocks.
The prices of grains are lowered by a steer.
Conclusion:
The finite limit of earth resources and growth of population are not the only reasons for scarcity.
Assumption:
The livestocks were not ultimately used for food of humans.
-----
"A steer reduces twenty-one pounds of inexpensive grain to one pound of expensive meat. " 这句话不明白~

2. 50s
检测史前气候的其中一种方法是检验在冰川的plant pollen。通过比较这些pollen的不同，科学家可以测出不同时期的气候特点。而且把这些检测出来的数据应用到最新的检验技术中，就可以测出史前主要的气候情况。

3. 50
BG: 严重的环境污染通常发生在人均经济产值在4000-5000美元的国家，而很少发生在有钱的国家。
Premise: 原因在于那些有钱的国家以前也经历过严重的环境污染，当工业得到发展，环境问题就会渐渐得到解决。
Country X现在的人均经济产值在4000-5000.
Conclusion: Country X的环境问题也会渐渐得到改善。

4. 46s
BG:国家R想谴责国家S的专制行为，所以R要禁止一切产品出口到S。
Premise:
一些通讯企业如电话,传真等请求政府不要禁止他们的产品出口，
理由是在通信发达、消息灵通的情况下，S就无法专制了。
Conclusion: 为达到目的，R不应该禁止通讯产品出口到S。

5. 43s
所有涉及到批评政府的书籍都要经过审查。只有审查过关后才能出版。
第一次, 1/2被审查的书籍过关了。
第二次，3/4被审查的书籍过关了。
而两次过关的书籍数量一样。

T，T 速度越障逻辑all finished，终于被虐完了！！

【每日逻辑链练习贴】【逻辑1-4】

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