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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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请教PREP-P2-21

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楼主
发表于 2008-6-10 18:24:00 | 只看该作者

请教PREP-P2-21

21.   (25520-!-item-!-188;#058&002357)

 

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

请问D错在哪里啊,答案是C.

沙发
发表于 2008-6-10 18:46:00 | 只看该作者

这道题好大的陷阱,乍一看绝对中计。

scientist have to painstakingly remove的是growth hormone,不是synthetic growth hormone。只有C,E在这一点上是正确的,但E的逻辑主语错误。

论坛有PREP笔记的,MM可以去看一下。

板凳
发表于 2008-6-11 00:33:00 | 只看该作者

‘惯性’陷阱;

synthesize the growth hormone和make a synthetic growth hormone意思相差很多,

我说一下后者的不合常理之处,

在学会make一个人造的H之前,必须把这个人造的H从身体里remove掉;

地板
 楼主| 发表于 2008-6-11 12:30:00 | 只看该作者
thanks. NNs
5#
发表于 2009-8-18 23:25:00 | 只看该作者
ding
6#
发表于 2009-9-27 15:30:00 | 只看该作者
ding
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