[求助]GWD5-39

蓝露

GWD5-39

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

这道题为什么不选C呢？是因为不太平行么？

应该怎么区分not...but 和not only...but also呢？

Zeldaw

C的问题在于完成时不好，另外that are可以省略

zyk19861221

首先，那个c选项的，occurring就是多余的废话。其次，not和not also分别是中文里的“不是，而是”，“不仅，而且”！

deadendjy

occurring现在分词表示反复，持续的动作。a phenomenon已经发生应该用从句。because of一般不接复杂的句型，如果里面出现动词的各种形式可以用because从句代替