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Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadavers.

正确答案: C

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prep2-21

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楼主
发表于 2007-5-21 12:26:00 | 只看该作者

prep2-21

Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadavers.

 

(A) scientists learned how to make a synthetic growth hormone, removing it painstakingly

(B) scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly

(C) scientists learned how to synthesize the growth hormone, it had to be painstakingly removed

(D) learning how to make a synthetic growth hormone, scientists had to remove it painstakingly

(E) learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists

C是正确答案

我选的是D,虽然make a synthetic growth hormone比较罗嗦,但用的是相同的主语

如果是

learning how to synthesize the growth hormone, scientists had to remove it painstakingly

语法对吗

沙发
发表于 2007-5-22 21:38:00 | 只看该作者
D的it指的是合成的生长素,而不是要remove的(天然的)生长素
板凳
发表于 2007-5-23 23:12:00 | 只看该作者

从分词修饰角度来讲,D没错,但是错在逻辑意思,科学家不 painstakingly,而是从体内拿出荷尔蒙是 painstakingly

地板
发表于 2007-11-6 17:20:00 | 只看该作者

科学家只管synthesize,不可能是remove的主语,应该是"doctors" remove it。所以d错。


[此贴子已经被作者于2007-11-6 17:20:55编辑过]
5#
发表于 2007-12-28 13:56:00 | 只看该作者
up
6#
发表于 2008-3-27 20:34:00 | 只看该作者
以下是引用gonghao在2007-5-23 23:12:00的发言:

从分词修饰角度来讲,D没错,但是错在逻辑意思,科学家不 painstakingly,而是从体内拿出荷尔蒙是 painstakingly

这个解释很好!!!!!!

7#
发表于 2009-8-8 23:27:00 | 只看该作者

(C) scientists learned how to synthesize the growth hormone, it had to be painstakingly removed

C中it指代growth hormone

(D) learning how to make a synthetic growth hormone, scientists had to remove it painstakingly

D中it指代a synthetic growth hormone,逻辑不合理

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