涛涛GWD31-10-33

ailingzh

Q33:

After more than four decades of research and development, a new type of jet engine is being tested that could eventually propel aircraft anywhere in the world within two hours or help boost cargoes into space at significantly lower costs than current methods permit.

 

A.       tested that could eventually propel aircraft anywhere in the world within two hours or help

B.       tested that could eventually have the capability of propelling aircraft anywhere in the world within two hours or to help

C.       tested, eventually able to propel aircraft anywhere in the world within two hours, or helping

D.       tested, and it eventually could propel aircraft anywhere in the world within two hours or helping

E.        tested, and it could eventually have the capability to propel aircraft anywhere in the world within two hours or help

   Answer: E

 

我觉得A比E更合适。不知A中的that从句用法对否。但E中的help 的并列有混淆，且have the capacity to do sth的用法准确吗？不应该是have the capacity of doing sth吗？

请高手答疑。

carolhide

A中结构混乱，肯定错

LZ搞错一个用法

the caability to do sth

be capable of doing sth

gonghao

A.   a new type of jet engine is being    tested that could eventually propel aircraft anywhere in the world within two hours or help

这里的结构中that比较的奇怪

定语从句肯定是不对的

宾语从句么也显奇怪，前面的被动语态已经非常明显，而且用的是being，结构非常混乱，

就算是宾从的话，that后面没有主语啊

所以一定是再DE当中选择的

D后面的helping不正确

选了E

ailingzh

that 是 a new type of jet engine的定语从句，因为太长，所以放在句子末尾，怎么是结构混乱呢。

gonghao

定从的话，应该是这样的结构

 a new type of jet engine ，which could eventually propel aircraft anywhere in the world within two hours or help boost cargoes into space at significantly lower costs than current methods permit，is being tested

ailingzh

看来也没有更好的理解了。谢谢！

yukovan

that必须紧跟在先行词的后面啊