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
(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
答案是C，可是it 。。。和before。。。的主语不需要一致吗？后半句主语应该也是scientist吧？我怎么觉得D好一些？
我说说我的意见哈
说错了请指正
MM说的情况应该是介词+分词,才要看逻辑主语的
这里的before scientists…是个完整句子
当作时间状语用的
D的错误在那个it指代了a synthetic growth hormone在意思上是错误的
不过考试的时候哪想的到这么多啊~~~
谢谢MM
我做糊涂了，太多逻辑一致的病句，搞得我现在都这个都特别敏感。
這個問題事實上考的是指代啊～我第一次作也被騙了～
如果選D的話,it指的是合成的生長賀爾蒙,不合理，應該是生長賀爾蒙。
| 欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |