请教GWD23-Q14

bdx2010

GWD-23-Q14(答案是B,请NN来给看看，非常感谢)

Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year.  This year the plantings are being seriously damaged by bollworms.  Bollworms, however, are not necessarily developing resistance to the cotton’s insecticide.  Bollworms breed on corn, and last year more corn than usual was planted throughout cotton-growing regions.  So it is likely that the cotton is simply being overwhelmed by corn-bred bollworms.

In evaluating the argument, which of the following would be most useful to establish?

A.    Whether corn could be bioengineered to produce the insecticide

B.    Whether plantings of cotton that does not produce the insecticide are suffering unusually extensive damage from bollworms this year

C.    Whether other crops that have been bioengineered to produce their own insecticide successfully resist the pests against which the insecticide was to protect them

D.    Whether plantings of bioengineered cotton are frequently damaged by insect pests other than bollworms

E.     Whether there are insecticides that can be used against bollworms that have developed resistance to the insecticide produced by the bioengineered cotton

overthere33

阅读没过关吧

这题读懂了题 没逻辑难度的 

建议还是先搞懂阅读 不然再简单的逻辑 看不懂题目也是白搭

[此贴子已经被作者于2009/8/19 23:14:35编辑过]

penelopexcy

谁能帮忙翻译一下呀。我一点都没搞懂这几句话之间到底有什么逻辑关系。

penelopexcy

2楼的战友，多谢啦，解释一下。

anniezhang12

以下是引用overthere33在2009/8/19 23:13:00的发言：

阅读没过关吧

这题读懂了题 没逻辑难度的 

建议还是先搞懂阅读 不然再简单的逻辑 看不懂题目也是白搭

。。。那你咋不解释一下~~

moonlolita

同问……我更想知道在时间来不及的情况下如何做对逻辑……没时间好好读啊

Sophin

好像还是没有解释清楚哎。。。顶一下~拜牛人们赶紧赐教，真的没看懂这个题目要评估的是什么？？？

Gail小M

er,U should figure out there are two kinds of planting of cotton: can produce its own insecticide against bollworms  / cannot produce

premise1lantings of cotton(can produce its own insecticide against bollworms) sustained little bollworm damage until this year.  This year the plantings are being seriously damaged by bollworms.

premise2: Bollworms, however, are not necessarily developing resistance to the cotton’s insecticide.
premise3: Bollworms breed on corn, and last year more corn than usual was planted throughout cotton-growing regions.
conclusion:  So it is likely that the cotton is simply being overwhelmed by corn-bred bollworms.

premise简单说就是 the planting of cotton 今年受bollworms影响很厉害。但是bollworm并没有完全形成对insecticide的抵抗力。同时corn今年种植特别多，导致靠C生长的B也很多。

B：不能形成insecticide的planting of cotton有没有因为Bollworm遭灾
I will go with B :B clearly establishes that it is not just the resistant cotton that are getting affected, and  supports the overwhelm theory.

the conclusion talks about COTTON in general, whereas argument only accounted for planting(bio...can produce insecticide）therefore, we must know something about non-bio one(cannot produce) to evaluate the conclusion. B does that.

坤kun

出去吃了个饭回来突然开窍了，说下我的理解

Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year.
经过基因改造的棉花自身能产生一种杀虫剂来对抗棉铃虫，所以这种棉花一种都受很低程度的害虫伤害。
This year the plantings are being seriously damaged by bollworms.
但是今年悲剧了。
Bollworms, however, are not necessarily developing resistance to the cotton’s insecticide.
究其原因呢，不一定是棉铃虫对杀虫剂免疫了。
Bollworms breed on corn, and last year more corn than usual was planted throughout cotton-growing regions.
（那应该是什么原因呢？）棉铃虫以谷物为食，而去年人们在种棉花的地方种了很多很多谷物。（隐含意思是：吃的东西多了，棉铃虫也就多了）
So it is likely that the cotton is simply being overwhelmed by corn-bred bollworms.
所以很有可能是太多太多棉铃虫了，完全淹没了棉花。（感觉有点类似遭受蝗灾~）

理解的题目相信就很好选择了~A\C\D\E基本都可以无关排除掉了，我们可以试着回答一下B：
如果答案是yes，那么很明显，大面积的棉铃虫确实有可能是原因，因为本来就没有抗虫能力的棉花也遭受了比以往更大的损失；
如果答案是no，那就说明不是棉铃虫太多的问题。