求教 OG16 SC 100

SimonPho

The results of the company’s cost-cutting measures are evident in its profits, which increased 5 percent during the first 3 months of this year after it fell over the last two years.
(A) which increased 5 percent during the first 3 months of this year after it fell
(B) which had increased 5 percent during the first 3 months of this year after it had fallen
(C) which have increased 5 percent during the first 3 months of this year after falling
(D) with a 5 percent increase during the first 3 months of this year after falling
(E) with a 5 percent increase during the first 3 months of this year after having fallen

答案选C，OG的解释
The first indicator to be identified, a 5 percent increase in profits, occurred after the indicator mentioned next. The sentence therefore needs to clarify the sequence by presenting the first-identified indicator in a clause with a verb tense that indicates a later time period than the verb tense in the clause presenting the second-identified indicator.
我的理解这里的两个indicator,一个是今年前3个月涨了5%，一个是前两年一直在跌。自然时态上，应该是后者的时间要早于前者。但是选项C中，falling为何是比have increased早？请各位NN赐教，感谢。

SimonPho

RyanR 发表于 2016-7-7 23:26
after之后的动作都比after之前的要早发生，另外after后面不需要用完成时态，因为after已经表示是完成了， ...

谢谢，刚才在找after用法分析的时候恰巧看到了前辈NN对于这道题的分析，很受用。
http://forum.chasedream.com/foru ... r%E7%94%A8%E6%B3%95

RyanR

SimonPho 发表于 2016-7-7 22:36
那如果这样说的话，只要把代词 it 改成 they解决主谓单复数问题，可不可以理解成AB都没有错吗？
OG解释C ...

after之后的动作都比after之前的要早发生，另外after后面不需要用完成时态，因为after已经表示是完成了，用after又同时用完成时是redundant的

SimonPho

RyanR 发表于 2016-7-7 21:54
单单after这一个词就已经足够表现先后顺序了，仔细体会一下~

那如果这样说的话，只要把代词 it 改成 they解决主谓单复数问题，可不可以理解成AB都没有错吗？
OG解释C正确的原因是说 The verb tenses clearly indicate the sequence of events. 所以我觉得还是时态的问题，还是不明白这里的after falling的时态为什么就比have increased...的早一点呢

RyanR

单单after这一个词就已经足够表现先后顺序了，仔细体会一下~