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标题: Prep 2 21题 [打印本页]

作者: tommy8163    时间: 2010-4-11 16:23
标题: Prep 2 21题
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 错,没有主语

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

(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 相对原文改动最小

(E) learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists learning的逻辑主语是it ,不对

本题答案是C ,我选择了D,答案边上是我认为了一些解释,不过C 和 D一时也想不出如何选择,还望请教啊

作者: flames001    时间: 2010-4-11 17:26
make a synthetic growth hormone 不简洁,除此以外,好像D也没啥句法问题
作者: hughlv    时间: 2010-4-11 18:03
before learning ... 有“开始学习之前”,而不是原文中“学会之前”的含义。
作者: v20AND750    时间: 2010-5-4 15:49
(C)it指代the growth hormone(明确it的指代对象,是做对本题的关键)。
(D) it指代synthetic growth hormone不符合逻辑。
给与我一样没看清题目跟解释的同学一个参考。。。。
作者: dldennis    时间: 2010-5-9 15:46
我觉得还是synthesize优于make a synthetic growth的问题导致it指代的变化
作者: chaneldl    时间: 2010-6-15 08:41
A: learn how to make a synthetic growth hormone和removing变成伴随关系,也就是同时发生,不符合原意。
B:learn how to synthesize应该在painstakingly removed之后,所以后者应该用过去完成时而前者用过去时,B中用反了。
C:答案。
D:it指代的是synthetic growth hormone. 这个东西在painstakingly removed的时候还没被合成出来,不符合逻辑。
E:it变成learning的主语了,不对。




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