请教 GWD2-19

Possible long-term consequences of the “greenhouse effect,” the gradual warming of the Earth’s climate, may include melting the polar ice caps and a rising sea level.

A.      may include melting the polar ice caps and a rising sea level

B.      may include the melting of polar ice caps and the rising sea level

C.      may include polar ice caps that are melting and sea levels that are rising

D.      include melting the polar ice caps and sea levels that are rising

E.       include melting of the polar ice caps and a rise in sea level

 答案给的是E，OG上有the or a 加在一个动名词前面，这个动名词就名词化了，这个题里面是不是因为用了melting of the polar ice caps 的结构，所以melting 也是名词化了，就不用在melting前面加 the or a 了呢。

GMAT里面的语法都是找相对正确的，这题我是按照排除法做的，ABC肯定不对，may 和possible重复，DE里面D不对称，所以相对而言E比较正确。这里melting感觉是现在分词作动名词，虽然不是完全对称，但是也还凑合！