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标题: 如今JJ里面GWD28-Q28题，逻辑一题，哪个答案更好？ [打印本页]
作者: 影月    时间: 2007-11-25 14:27
标题: 如今JJ里面GWD28-Q28题，逻辑一题，哪个答案更好？

本月有人考到这个逻辑题目，哪个答案更好呀？C？,E？

GWD28-Q28:

Which of the following most logically completes the argument?

 

 

A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants.  Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.  Possibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils, a hypothesis that would gain support if ______.

 

 

  1. histidine is found in all parts of the plant—roots, stem, leaves, and flowers

  2. the herb’s high level of histidine production is found to be associated with an unusually low level of production of other amino acids

  3. others of the closely related group of plants are also found to produce histidine in large quantities

  4. cultivation of the herb in soil with high concentrations of the metals will, over an extended period, make the soil suitable for plants to which the metals are toxic

  5. the concentration of histidine in the growing herb declines as the plant approaches maturity

作者: liuchang1988    时间: 2007-11-25 14:42
E。CD讨论里确定的答案
作者: AdamHHH    时间: 2007-11-25 16:55

同意樓上  基本上 CR.裡面OTHER開頭會是標準答案的很少

作者: aircavalry    时间: 2007-11-25 19:22

http://forum.chasedream.com/dispbbs.asp?boardid=24&replyid=1656674&id=140380&page=1&skin=0&Star=4

看看大牛lawyer的解释，支持选C

作者: AdamHHH    时间: 2007-11-25 19:37

別帖我已經把選E的理由講出來拉

http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=290071&star=2&page=  20F

原題有這一句A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants. 

選C不就自打嘴巴便成否定了

在強調一次...CR裡面採用OTHER /OTHERS開頭出現正確答案的機會不高...

這題選C變成否定


[此贴子已经被作者于2007-11-25 19:38:02编辑过]
作者: aircavalry    时间: 2007-11-25 20:43
LS的对题目第一句话理解有偏差吧，A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants.  这种草药只是能在重金属土壤环境中茁壮生长的一种，还有其他
作者: AdamHHH    时间: 2007-11-25 21:37

文中講的植物xx是相近類別植物YY中的一種....然後xx有histidine

....這裡沒說YY有沒histidine....

然後選項C說~YY也有histidine...那不就表是..xx有histidine不能表示他抗重金屬...

變成否定...那就錯拉..怎可能選C...

E是正確的我很肯定~~~

好拉不講了~~解釋半天~~

累了

作者: peter27    时间: 2007-11-25 21:51

我感觉D也比较美妙啊....支持D.嘿嘿

作者: Winterfish    时间: 2007-11-25 21:59
以下是引用peter27在2007-11-25 21:51:00的发言：

我感觉D也比较美妙啊....支持D.嘿嘿

晕啦？只有C和E值得讨论。偶支持E，你呢？

作者: Jocelynsu    时间: 2007-11-25 22:32
呵呵，别争了，争了几年都争不出来的答案。说不定这题是不算分的。GMAC就想考考我们，遇到敲不定的题目，敢不敢果断放弃，哈哈
作者: AdamHHH    时间: 2007-11-25 23:42
很明顯C一定不對阿？？....
作者: QingHuang    时间: 2007-11-25 23:59

I think D is the better answer

The experiment was originally performed in "test-tube solutions", but is it still true in realities (in soil)?  The answer D provides that it is still true in the soil (it render the mental inert in the soil, therefore make other plant survive)

作者: AdamHHH    时间: 2007-11-26 00:09
以下是引用QingHuang在2007-11-25 23:59:00的发言：

I think D is the better answer

The experiment was originally performed in "test-tube solutions", but is it still true in realities (in soil)?  The answer D provides that it is still true in the soil (it render the mental inert in the soil, therefore make other plant survive)

明明爭議就是C跟E就是有人要選D...沒有D這種神奇藥草拉...........ETS的題目不會不符合真理跟事實
作者: QingHuang    时间: 2007-11-26 07:58

The hypothesis is that "the herb’s high histidine production is what allows it to grow in metal-rich soil. 

There is no doubt that "this herb produces histidine", which is already proven by the study. 

What needs to be proven is that what happens in the test tube solution still happens in the soil. 

It is possible that the herb's histidine will make mental inert in the solution but can't make it inert in the soil. 

 


[此贴子已经被作者于2007-11-26 8:00:49编辑过]
作者: 伊布拉莫维琨    时间: 2009-7-22 21:01
作者: dlmmdajgal    时间: 2009-7-22 21:19

这题选C很明显

原题：one of a group;  it produces large amounts of histidine; renders these metals chemically inert 导致结论 the herb’s high histidine production is what allows it to grow in metal-rich soils

选项支持这个结论 当然要说 others in the group 也有同样的能力，所以在铁多土地里必须要具体吸收这些物质的能力。

e很模糊，长大成熟histidine减少怎么了？难道长大就不需要营养了？

作者: beiting    时间: 2009-7-22 22:16
这题选D 我确定
作者: alan722    时间: 2009-7-22 23:09

支持选C，题目先说one of group，选项呼应个others，正好支持这个观点。如果others没有H这东西也能活的好好的，是不是否定专家的假设呢？所以，反过来，是加强

D只是把题干说的东西反过来再说了一遍

至于E，题目有说植物长成熟了就需要的养分少了么？没有的话，都是做题人的主观臆测，是错误选项


[此贴子已经被作者于2009/7/22 23:20:21编辑过]
作者: aoi5551    时间: 2009-7-23 08:40
C. others of the closely related group of plants are also found to produce histidine in large quantities
作者: medusa0901    时间: 2012-1-10 18:28
GWD28-Q28:




Which of the following most logically completes the argument?









A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants.  Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.  ossibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils, a hypothesis that would gain support if ______.





首先，这个填空题型分3种：MUST BE TRUE/MAIN POINT/ASSUMPTION a hypothesis that would gain support if ______.
导致大家不知道选哪个的原因应该是清楚它到底问啥？




结论是: herb with high histidine-->grow in high metal soil
如果是assumption填补结论GAP
大家可能会选C
C. others of the closely related group of plants are also found to produce histidine in large quantities
但这个怎么看怎么像无关呢，gmat不会饶太多弯，other related plants 和结论提出的这个herb 不是一个东西啊，明显是背景信息填词用的


再看
如果是must be true 是原文某句话(premise/conclusion)的重写或逆否命题或某几句话的结合 (paraphrase, repeat)
herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.  ossibly, therefore, the herb’s high histidine production is what allows it to grow in metal-rich soils,
=herb 让metal 无用，所以 herb with high histidine-->grow in high metal soil


D. cultivation of the herb in soil with high concentrations of the metals will, over an extended period, make the soil suitable for plants to which the metals are toxic
第一句话说开始herb with high histidine thrive in soil with high concentrations of metals that are toxic to most other plants
=metal soil-->toxic to most other plants-->other plants do not thrive
soil suitable to other plants 不一定不toxic to other plants, 也许less toxic, 离题太远
D 说种herb with high histidine-->soil suitable for other plants 没有提到是不是herb with high histidine会让它自己grow in high metal soil


E. the concentration of histidine in the growing herb declines as the plant approaches maturity
因果正确herb with high histidine能在high metal soil里长
             histidine少了，histidine不用长了

作者: ttturtlett    时间: 2012-1-10 19:11
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
作者: 鼎鼎    时间: 2012-2-1 14:52
支持选C。
理由：D项：氨基酸可以改变金属性能只是在试管测试中，题中并未说H这种氨基酸可以进入土壤改变土壤中的金属。按常识理解也应该是有毒金属进如该植物体内，但被H改变了。所以不能说，该植物呆的时间长了，其他植物就能呆了~
        E项：the concentration of histidine 不等于large amounts of histidine。原题没有说H的浓度或其变化。
        C项，加强效果虽然不强，但试想我们做该研究时，也定会用这条增强结论的正确性。
个人拙见，一起讨论~
作者: masushuang    时间: 2012-5-5 13:23
同意选C！注意这句话：A certain cultivated herb is one of a group of closely related plants that thrive in soil with high concentrations of metals that are toxic to most other plants.

thrive 而不是thrives,说明这整个group of closely related plants 都能够在高浓度金属土壤里存活。
然后题干说在这个herb里面发现了H。

C选项，这些可以在金属土壤里存活的closely related plants 都产生H。
直接想可能发现加强不明显，那么我们对C取非：但是在这些closely related plants 里并没有发现H，于是结论削弱了。

所以我支持C。



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