PREP-1-27

GreenGreen

27.   (31231-!-item-!-188;#058&004411)

 

 

Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage.  Unfortunately, the seeds themselves are quite expensive, and the plants require more fertilizer and water to grow well than normal ones.  Thus, for most farmers the savings on pesticides would not compensate for the higher seed costs and the cost of additional fertilizer.  However, since consumer demand for grains, fruits, and vegetables grown without the use of pesticides continues to rise, the use of genetically engineered seeds of this kind is likely to become widespread.

 

 

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

 

 

(A) The first supplies a context for the argument; the second is the argument's main conclusion.

(B) The first introduces a development that the argument predicts will have a certain outcome; the second is a state of affairs that the argument denies will be part of that outcome.

(C) The first presents a development that the argument predicts will have a certain outcome; the second acknowledges a consideration that weighs against that prediction.

(D) The first provides evidence to support a prediction that the argument seeks to defend; the second is that prediction.

(E) The first and the second each provide evidence to support the argument's main conclusion.

问题：A选项错在哪里呢。HOWEVER之后不就是main conclusion 吗？谢谢！

[此贴子已经被作者于2007-8-20 11:30:54编辑过]

lanseb8ma

是选C吗？A没什么大错，但是把这个观点当作作者的main conclusion有点草率，因为第二句用的是"is likely to"，还是讨论商量的语气，完整的作者观点应该包括上面提到的“for most farmers”，所以A不如C来得精确。

GreenGreen

lanseb8ma,我想再问一下。我认为THUS之后是中间结论。HOWEVER之后是main conclusion.

尽管HOWEVER之后是IS LIKE TO 的口气。但这不是结论吗？我不是很清楚。多谢指点。

lanseb8ma

确实从题目来看，作者对于后一种观点持肯定态度，但是也可以理解为是talking about the other side of the coin；我没有绝对的理由来推翻A，只是相比之下C更精确。

snowofjune

这题答案是什么？

wangtsong

我认为一定不能选A

文中的两段黑体字的论点是相反的

而A中的两个论点是相同的。

open to discuss...

wawadream

：）