GMAT OG 语法专本上的一道题请教牛牛们~

蚊子小猴

Polio. although it is eradicated in the UnitedStates. it continues elsewhere and is able to be brought into the country by visitors.
(A) Polio, although it is eradicated in the United States, it continues elsewhere and is able to be
(B) Polio, although eradicated in the United States, it still continues elsewhere and can be
(C) Although still continuing elsewhere, polio has been eradicated in the United States and could be
(D) Although having been eradicated in the United States, polio still continues elsewhere and is capable of being
(E) Although eradicated in the United States, polio continues elsewhere and could be




这道题答案是E，我也选对了，其它选项的错误太明显了，但是我有一个疑问，做OG综合的时候看到答案解析力说although 后面必须接一个完整的句子（OG 691页14题C选项解释），但这道题的E选项，Although后面也不是一个完整的句子呀~

bbltxl

(ALTHOUGH should generally be followed by a clause.)此语法来自manhattan

e.g. ALTHOUGH a frequent napper,I STUDY effectively. 这句话只能说不好，但不是致命错，只有在其它条件都相同时才需要考虑这个语法点。

蚊子小猴

懂了~~~MANY thanks!!!

metoo9

不好意思，问一个比较弱一点的问题：
(A) Polio, although      it is eradicated      in the United States
(B) Polio, although        eradicated          in the United States
这两个里面的 it is eradicate和eradicated 分别是动词的被动式和过去分词，他们在充当修饰成分的时候有什么明显的区别么？
还有就是 E 里面的eradicated 可以改成 it is eradicated么？

一直有点分不清楚分词和过去式。
比如说以下两个句子：
(C) Excited about the prospects of harnessing Niagara Falls to produce electric power, Nikola Tesla, the inventor of alternating current, predicted in the mid-1890's that electricity generated at Niagara would one day power the streetcars of London and the streetlights of Paris.

(D) Nikola Tesla, the inventor of alternating current, excited about the prospects of harnessing Niagara Falls for the production of electric power and predicted in the mid-1890's that electricity generated at Niagara would one day power the streetcars of London and the streetlights of Paris.

D中的excited 和predicted 不能充当谓语呢，他们不能看成是 excite 和predicted的过去式么？那为什么C中的就可以看成谓语呢？（ps：根据正确答案，我认为的C中的excited当分词修饰NT，predicted当过去式，至于为什么我也不太理解）。

弱弱问题求助牛牛。