[求助]一道语法真题

BeyondGMAT800

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

tigerzheng

我选C

howardwang

尽管有代词指代不清的嫌疑。可是，我还是觉得D对。

earlybirdcyu

最优原则则只能选D，看来WHICH只能指代前面的整个句子。希望大家讨论！

jxjiao

E?

这里的从句，需要限制还是不限制性从句，我感觉不出来，请教呢

jxjiao

改选D.应该非限制吧，which 修饰前面词组的中心词teches,

讨论

ESeraph

why not A?

sunarain

我感觉没有一个选项正确,相比而言,C or E 更好.D 应该不对,which 不能指代句子,makes应该用复数形式make.

jxjiao

我真粗心，呵呵，还是选E

以下是引用800在2005-10-21 7:41:00的发言：

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   use跟to do 比较好吧

B.   With the same techniques to genetically enhance plants, so that they are  没有语气词，错

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 单数表明修饰前面的整个句子，错

E, that 修饰中心词

[此贴子已经被作者于2005-10-22 3:07:38编辑过]

earlybirdcyu

E中的THAT从句修饰PLANTS 逻辑意义不对吧！而且FOR DOING STH 这种结构不是很好！