prep07 cr2 22 23 求助~！！逻辑简直就是lz的悲剧……

onlysilence222

22.

Herbicides allow cereal crops to be grown very efficiently, with virtually no competition from weeds.In Britain, partridge populations have been steadily decreasing
since herbicide use became widespread.Some environmentalists claim that these birds, which live in and around cereal crop fields, are being poisoned by the herbicides.
However, tests show no more than trace quantities of herbicides in partridges on herbicidetreated land.Therefore, something other than herbicide use must be
responsible for the population decrease.

Which of the following, if true about Britain, most seriously weakens the argument?A

(A) The elimination of certain weeds from cereal crop fields has reduced the population of the small insects that live on those weeds and that form a major part of
partridge chicks' diet.

(B) Since partridges are valued as game birds, records of their population are more carefully kept than those for many other birds.

(C) Some of the weeds that are eliminated from cereal crop fields by herbicides are much smaller than the crop plants themselves and would have no negative
effect on crop yield if they were allowed to grow.

(D) Birds other than partridges that live in or around cereal crop fields have also been suffering population declines.

(E) The toxins contained in herbicides typically used on cereal crops can be readily identified in the tissues of animals that have ingested them.
选A，A的意思应该是鸟是饿死的不是毒死的啊，明明就support啊！

23

A product that represents a clear technological advance over competing products can generally command a high price. Because technological advances tend t
o be quickly surpassed and companies want to make large profits while they still can, many companies charge the maximum possible price for such
a product.But large profits on the new product will give competitors a strong incentive to quickly match the new product's capabilities.Consequently, the strategy
to maximize overall profit from a new product is to charge less than the greatest possible price.

In the argument above, the two portions in boldface play which of the following roles?

[A) The first is a consideration that has been raised to argue that a certain strategy is counterproductive; the second presents that strategy.

B) The first is a consideration raised to support the strategy that the argument recommends; the second presents that strategy.

(C) The first is a consideration raised to explain the appeal of a certain strategy; the second presents that strategy.
(D) The first is an assumption, rejected by the argument, that has been used to justify a course of action; the second presents that course of action

(E) The first is a consideration that has been used to justify pursuing a goal that the argument rejects; the second presents a course of action that has been adopted
in pursuit of that goal.

答案是C，我选的E。bf我从来都不错的啊！！！prep答案没问题吧？？

答案是C，我选的E。bf我从来都不错的啊！！！prep答案没问题吧？？

viewlam

感谢！终于明白了

xiaofanzaikg

通透了，赞大神

onlysilence222

逻辑笔记ms没有，逻辑原题有

断夏夏

请问07prep逻辑笔记哪里有？？万分感谢

sandychen168

第二题这个C选项说的太隐晦了…………太隐晦了……
E错是因为这个Goal本身argument是没有反对的……

-- by 会员 onlysilence222 (2011/10/30 20:53:54)

是的，这道题当时我也错了，相当隐晦，后来看了manhattan的大牛ron的解释才想通

onlysilence222

第二题这个C选项说的太隐晦了…………太隐晦了……
E错是因为这个Goal本身argument是没有反对的……

onlysilence222

哦我懂了~~~鸟不是被毒死的不能推出除草剂没有导致鸟的减少，除草剂可以通过毒死鸟之外的方法让鸟减少……
OMG我感觉prep07比gwd的cr还难……

onlysilence222

之前看过这位NN的分享帖，很受益啊
CD真是卧虎藏龙

sandychen168

第二题，之所以先将这句话提出以便后来解释某种政策的吸引力是因为，大多数公司都这样做（题目说这样做不好），但如果你不这样做，你就好。相对于别人你就有优势，但如果别人都这么做，这个政策对你就不会有特别的优势了，从而也不会有很大的吸引力。

第二句说的就是这个政策（采用了你就能比别人有优势的政策）