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. as huge reservoirs of energy, as possible causes of sea floor instability, and even as
正确答案是A，可是A中“possibly causing sea floor instability”这个分词短语放在中间不会导致修饰歧义吗？而且为什么E不对呢？挺平行的嘛。请指教！
E中their potential as possible causes 似乎欠妥。
A是形成了to be A,...,and B。 A后面加入一个独立的doing成分
我的意思是说，gas hydrates有潜力作为huge reservoirs of energy，也有潜力作为significant contributors， 但不能说有潜力作为 possible causes of sth.，从意义上说不通。
A中,possibly causing sea floor instability跟在huge reservoirs of energy，说明是这种能量causing sea floor instability.
对呀，我觉得我们说的是一个问题啊：
gas hydrates “有潜力成为地球变暖的重要原因”，和“有潜力成为海底不稳定的原因”，这两种潜力性质上不是类似的吗？即都是有潜力成为一种现象的原因。
请ESeraph继续指教!
对呀，我觉得我们说的是一个问题啊：
gas hydrates “有潜力成为地球变暖的重要原因”，和“有潜力成为海底不稳定的原因”，这两种潜力性质上不是类似的吗？即都是有潜力成为一种现象的原因。
请ESeraph继续指教!
谈不上指教。共同探讨。这道题分歧挺大的。
首先，我倾向于potential to，关于这点我还没有特别确凿的证据。Sorry
第二点，potential as possible casues.你不觉得便扭？“有潜力作为可能的原因”。意义有点模糊吧，到底是什么情况也没说清楚。两个划线词的使用我认为不太合适。用一个就够了.
第三点，句子在谈论gas hydrates，我认为huge resevoirs of energy 和contributors to ..意义是比较平行的，也是一致的，都跟能量有关。但在这两者间加入一个造成海床不稳定的原因，似乎太突兀了。这一点可能有推论的嫌疑，欢迎批评。
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