請問新PP1- 102 !! 感謝!

kbkgqoo

In parts of South America, vitamin-A deficiency is a serious health problem, especially among children.  In one region, agriculturists hope to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in betacarotene, which the body converts into vitamin A.  The plan has good chances of success, since sweet potato is a staple of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene.

Which of the following, if true, most strongly supports the prediction that the plan will succeed?

A. There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.

B. The flesh of SPK004 differs from that of the currently cultivated sweet potatoes in color and texture, so traditional foods would look somewhat different when prepared from SPK004.

C. For successful cultivation of SPK004, a soil significantly richer in nitrogen is needed than is needed for the varieties of sweet potato currently cultivated in the region.

D. There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.

E. The currently cultivated varieties of sweet potato contain no important nutrients that SPK004 lacks.

 答案是E~!  這是GWD1-Q15的變化題~~ 我想問選項D~~可以想成如果有其他sweet potatos有更高的beta-carotene 的話~~~就不會想繼續種SPK004了~所以沒有其他有更高的話~SPK004才會被種~降子想是錯在out of scope嗎~? 而E選項~我想問的是題目並沒有說SPK004要代替currenly cultivated varieties of sweet potatos~~就算是SPK004真的缺了些重要的nutrients~~currently cultivated varieties of sweet potato 有那些nutrients就好啦~! 種植SPK004不就只是為了要多點betacarotene嗎~~? 請大家糾正一下我的思考錯的點~~謝謝~~!!

fighting127

题目问的是最能支持的是什么

我的理解是

D. There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is. 题目说the varieties currently grown contain little beta-carotene而SPK004 that is rich in betacarotene 只要SPK比现有的营养多就能支持  D太绝对了

E. The currently cultivated varieties of sweet potato contain no important nutrients that SPK004 lacks. E是说SPK没有的营养 现有的type里也不会有 是在支持SPK和原来的比不会有很大缺陷 而原来的type是作为主食 如果新type缺少了必要的营养 就不能满足食物和农业需求

alohabrian

很tricky的题目，我也选错了5555

嗯。。。是这样。 如果 现在种的 植物里 含有 SPK004没有的 Nutrients, 那么全部改成食用SPK004的话，人们就会营养不良了。E是一个 其实 是一个根本的Assumption，只有E成立 ，原文的SUCCESS 的逻辑才才成立。

Strengthen的方式是 突出原文隐藏的assumption。

D的话，也不错的，但是属于原文逻辑线之外的内容，解释了 为什么种 SPK004而不种别的植物。

反过来想，即使D成立，原文的assumption不成了，人们都开始食用SPK004, 但是都营养不良了，这个计划也谈不上SUCCESS。

[此贴子已经被作者于2009-3-26 19:09:05编辑过]

kbkgqoo

恩恩~~看了兩位的分析~~對這題更了解不少~~!!
多謝NN們的解釋阿~~謝謝~!!!

stavan

我觉得这个错误重点不是在于out of scope.

而是加强对力度那个更大.

题目中说, SPK004富含BETA胡萝卜素, 这是事实

D.说SPK004的胡萝卜素的含量最高, 这个当然是加强了, 如果没有E这个肯定可以成为答案

E.说SPK004不比别的土豆含的其他营养少, 也就是说, SPK004不但富含胡萝卜素, 其他营养成分也不逊色,

D,E比较起来,自然是E的加强力度更有效.

从套路上来说, D就是把原文事实程度拔高, 当然算是加强项, 但是力度较弱,

遇到这种选项, 一定要注意看其他选项, 因为很有可能这个是一个典型干扰陷阱

同样类型还可以设置出很多比D更强的加强项, 可以有很多种玩法:

1. 直接去掉选项E, 则D为正确答案

2. 去掉选项E, 把B改为: The flesh of SPK004 DOES NOT differ from that of the currently cultivated sweet potatoes in color and texture, AND traditional foods would NOT look somewhat different when prepared from SPK004. 在这种情况下, B就是答案

3. 去掉选项E, 吧C改为: 种植SPK004需要的土壤和种植其他土豆没有任何区别, 那么在这种情况下, C就是答案

同理, 这个题目选项设计属于典型套路, 搞清楚之后, 自然知道在什么时候需要小心, 也可以比较出怎样的选项是更强的加强项, 遇到削弱题目, 与此同理, 不再赘述

凤梨酥

简直太崇拜楼上各位  解答无比清晰，一下理解了D