By the same techniques used for genetically enhancing plants, making them disease- or pest-resistant, researchers have been able to increase the amount of protein in potatoes, sweet potatoes, and tobacco.
GWD30-Q17 17. GWD30-Q17: By the same techniques used for genetically enhancing plants, making them disease- or pest-resistant, researchers have been able to increase the amount of protein in potatoes, sweet potatoes, and tobacco. A. By the same techniques used for genetically enhancing plants, making them B. With the same techniques to genetically enhance plants, so that they are C. Employing the same techniques used to genetically enhance plants so that they are D. Employing the same techniques to genetically enhance plants, which makes them E. Employing the same techniques for genetically enhancing plants that make them Answer: c 请问B选项错在何处?我觉得with的用法做“拥有”讲应该没有什么问题。大家指点
so that 从句在这里表结果,如果前面用了with的独立结构,就无法表达是什么导致so that后面的结果了。因为独立结构和主句平行,表明主语的状态,使得so that的结果变成无因之果,逻辑上没有依靠。并且前面加了逗号,they的指代有歧义,因为with独立于they之外的结构使得techniques,plants和they的关系变得平等起来,指代就不明了。
个人觉得weidehou 说的比较对,本来句子的意思是强调“ techniques used to genetically”, 如果换成with..句子的主题就在突出于researchers...句子的意思就出现变化了
-- by 会员 falconzy (2012/5/10 15:25:14)
???同学你说的好奇怪啊,这句话的主句不就是“ researchers have been able to increase the amount of protein in potatoes, sweet potatoes, and tobacco.”吗??researchers都成了句子的主语了,怎么可能不是句子的中心?即使是在所谓的正确选项“C”里,你说的“ techniques used to genetically”也不过是在句首的独立主格中的一部分,又怎么可能是句子的意思强调的重点呢??