标题: 求解GWD-1-Q33 [打印本页] 作者: ymbspy 时间: 2011-5-10 11:35 标题: 求解GWD-1-Q33 A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color.The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the company’s implementing its plan to develop the prototype?
A.There is a considerable degree of variation in shade of color between weeds of different species.
B.The shade of color of some plants tends to change appreciably over the course of their growing season.
C.When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
D.Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.
E.Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.
答案是D.这道题在模拟时选对了，后来越想越晕。这道题应该属于SUPPORT的措施目的类，文中说用机器weeding比人工weeding更省成本， C说人工weeding不好 D说机器weeding可行 E说有了机器可以使有为weeding duties的农民腾出空做别的事 我觉得CDE都可以是正确答案 希望各位NN帮我讲解一下~ 作者: skyemotion 时间: 2011-5-10 14:19
CE都说人工有一定好处。削弱原文。作者: ymbspy 时间: 2011-5-11 21:30
C\E没说人工有好处啊 C的意思是说人工WEEDING有很多干扰，E是说有了机器那些原来负责人工WEEDING的农民就可以腾出空去做别的农活 都是在说人工的坏处或机器的好处吧 能否再帮忙解释一下？？作者: 我有我的小梦想 时间: 2011-6-6 13:24
C是说当人工作业的时候，overall size和leaf shape都被考虑进去，跟this plan无关；E是说有了机器以后原来负责weeding的这些人可以去干别的duties了，这也跟in favor of this plan无关啊；而D就是支持这个plan了，说只用shade of color而不用其他特征就能适用于所有的plant并economically bred；A和B都只说plant or weed，忽略了二者关系所能导致的implementing plan~~ 我是这么理解的~不知道对不对···作者: pygmysog 时间: 2011-6-6 13:51
A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding.
Which of the following is a consideration in favor of the company’s implementing its plan to develop the prototype?
A.There is a considerable degree of variation in shade of color between weeds of different species. [weed v.s crop plants , this option breaks a catagory]
B.The shade of color of some plants tends to change appreciably (明显地） over the course of their growing season. [weaken]
C.When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds. [i.e, with other terms considered, the prototype is not as effective as manually weeding, weaken]
D.Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics. [i.e, the crop plants are easily to be distinguished by prototype]
E.Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary. [irrelevant]
