请过来人指点, PREP的语法与最后考试语法题的风格相似度如何?

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

我觉得明明是D更好, 还是主动

 

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

我觉得明明是D更好, 还是主动

我觉得考场上的SC会比prep还要复杂一些

想的时候要冷静 慢一些

可能没有明显的排除标志 需要全部仔细的考虑 尤其是逻辑意思

我也觉得实战的SC难过prep，至少prep里还有什么like改成such as之类的错误，一上来就能排除两三个!

实战就把我搞惨了...

ls还再战吗？希望多和你交流啊!我3月肯定不考了，觉得自己弄不清楚sc到底怎么了。我的G分要申好点的学校(对我来说)是不够用啊。我特别想开个prep新sc题讨论帖。想一道题一道题拿出来大家讨论，不知道cders有没有人响应啊...

楼主这题主要考代词指代。首先明白代词指代中it是全部指代，即包括名词还有它的修饰成分，在本题中C的it是the growth hormone而D的意思是synthetic growth hormone. 楼主要想清楚逻辑意思，在科学家知道怎样合成growth hormone之前，科学家们需要把growth hormone从人体remove出来，而不是把synthetic growth hormone-合成的growth hormone-从人体remove出来(因为合成的生长荷尔蒙在未被科学家合成前是不再人体里存在的，remove的只能是人体原本有的生长荷尔蒙而不是合成的荷尔蒙)。

楼主这题旧prep里的。我考试的时候感觉还是考逻辑意思考表达准确多一些，我自己SC在考场上作的很不好，也在纳闷。总之多总结吧...