gwd语法汇总里面的疑惑3

23. Gas hydrates, chemical compounds of water and natural gas, are increasingly being studied for their potential to be huge reservoirs of energy, possibly causing sea floor instability, and significant contributors to global warming.

A. to be huge reservoirs of energy, possibly causing sea floor instability, and

B. to be huge reservoirs of energy, possibly causing sea floor instability, and even as

C. as huge reservoirs of energy, possibly causing sea floor instability, and

D. as huge reservoirs of energy, and the possible cause of sea floor instability,     E

E. as huge reservoirs of energy, as possible causes of sea floor instability, and even as

从句意上理解，应该是两个部分不列，possibly causing sea floor instability作状语。所以我认为应该选C。

huge reservoirs of energy,是hydrate等等东东的正面效应，而causes of sea floor instability是负面效应，应该是并列的啊，我是这么理解的。

如果选C。正如你说的，possibly causing sea floor instability可以理解为状语 。那么就产生了歧意了。E选项很工整，并列。

chasemba, 歧义在哪里？

愿意：可能成为巨大的能量储蓄库，也可能引发海底的不稳定。

岐义：可能成为巨大的能量储蓄库，从而引起海底的不稳定。

我明白了，主要是修饰对象不唯一。谢谢