OG18#766老题 关于正确选项的时态

唐僧的格子裳

In 2000, a mere two dozen products accounted for half the increase in spending on prescription drugs, a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing many more prescriptions for higher-cost drugs.

A.a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing
B.a phenomenon that is explained not just by the fact that drugs are becoming more expensive but also by the fact that doctors are writing
C.a phenomenon occurring not just because of drugs that are becoming more expensive but because of doctors having also written
D.which occurred not just because drugs are becoming more expensive but doctors are also writing
E.which occurred not just because of more expensive drugs but because doctors have also written
B项为正确选项，不过为什么该项使用了现在进行时？百思不得其解

LLEOE

因为其他四个选项有明显的错误，所以选B，GMAT考试中时态不是重点，所以没必要纠结时态的含义，这里用进行时，我觉得是表示现象的一种持续，药不断的变贵，医生开的处方也越来越多。

danyuchn

同意樓上的前半句，其他四個選項有明顯的錯誤，所以選B。但是個人認為時態是重點，而且是中高難度的題型常常考察的點，只是時態裡的「進行式」只是一種偏好性（好壞問題），而不是絕對的語意合理與否錯誤。

唐僧的格子裳

danyuchn 发表于 2017-10-17 17:37
同意樓上的前半句，其他四個選項有明顯的錯誤，所以選B。但是個人認為時態是重點，而且是中高難度的題型常 ...

多谢大佬指点！
查了一下，能够讲的通的只有：进行时表示一种感情色彩。选出来倒是很好选，只是某些地方感到疑惑，毕竟正确句子肯定是正确的，我试着去解析这个正确句子本身。

danyuchn

唐僧的格子裳 发表于 2017-10-17 21:26
多谢大佬指点！
查了一下，能够讲的通的只有：进行时表示一种感情色彩。选出来倒是很好选，只是某些 ...

正確句子會是文法正確，語意合理。但是某些正確句子可能會有歧義，或者寫得冗長無必要。這是因為相對選項都沒有更好的表達方式。GMAT的SC只有文法跟語意合理性是絕對的，其他都是相對的，端看相對選項的設計而言。