比较难题请教

nina23

According to analysists, analliance between three major personal computer companies and most of the nation's largest local telephone companies would enable customers to receive internet data over regular telephone lines at speeds much higher than are currently possible

这是一道语法题及其正确答案，THAN 的前后比较中心词应该都是SPEEDS，可是画线部分的答案显示比较前后一个是名词SPEEDS另一个是句子，比较的中心词是不一样的，与这道题很相似的Og中的题如下
132.    According to a study by the Carnegie Foundation for the Advancement of Teaching, companies in the United States are providing job training and general education for nearly eight million people, about equivalent to the enrollment of the nation’s four-year colleges and universities.
(A) equivalent to the enrollment of
(B) the equivalent of those enrolled in
(C) equal to those who are enrolled in
(D) as many as the enrollment of
(E) as many as are enrolled in
The phrases equivalent to in A, the equivalent of in B, and equal to in C have too broad a range of meanings to be used precisely here: that is, they can suggest more than merely numerical equality. Also, as quantitative expressions, equivalent and equal often modify nouns referring to uncountable things, as in “an equivalent amount of resistance” or “a volume of water equal to Lake Michigan.” To establish numerical comparability between groups with countable members, the phrase as many as is preferable. Choice D, however, uses this phrase improperly in comparing eight million people to enrollment, not to other people. The comparison in E, the best choice, is logical because people is understood as the subject of are enrolled.

那位大侠能分析一下比较的句子结构么，不甚感谢！

ecsniffer

这两个例子都属于比较中省略主语的情况
lzm一书164页有介绍

2love2live

are you saying 省略主语 is like the following?

at speeds much higher than ( those that ) are currently possible,

as many as are ( those that ) enrolled in

?


but when should we 省略主语, and when not?
thanks

ecsniffer

我觉得是
at speeds much higher than （speeds）are currently possible
as many as ( those) are enrolled in
LZM一书的例子即OG187.    
187.In one of the bloodiest battles of the Civil War, fought at Sharpsburg, Maryland, on September 17, 1862, four times as many Americans were killed as would later be killed on the beaches of Normandy during D-Day.
(A) Americans were killed as
(B) Americans were killed than
(C) Americans were killed than those who
(D) more Americans were killed as there
(E) more Americans were killed as those who
OG解释中有这么一句： in C and E, those who is a wordy intrusion.
什么时候该省略主语？这个问题我也没有想清楚。看了OG187的解释，有一些体会，但是又总结不出来，可能是例句还太少的原因。
感觉把987省略主语的题都找出应该能回答这个问题，可惜我的word使用没有gemj那么熟练呀！

dreadpower

个人看法：我觉得无须总结一个固定的比较的定理，因为文法的表达千变万化，但是万变不离其宗，这个宗就是比较的对等和一致。
     如OG187：B，C两个选项容易混：
     B插分两个句子：
     1。Americans were killed （（in one of the bloodiest battles of the Civil War, fought at Sharpsburg, Maryland, on September 17, 1862））（4份）
     2。would later be killed on the beaches of Normandy during D-Day.（1份）这里就省略了Americans，语法上成立的。
     再比较这两个句子，是不是对等呢？？是的，因此：成立

    C插分为两个句子：
    1。Americans were killed （（in one of the bloodiest battles of the Civil War, fought at Sharpsburg, Maryland, on September 17, 1862））（4份）
   2。 those who would later be killed on the beaches of Normandy during D-Day.（1份）
    比较看，1句在说Americans were killed ，2句比的却是 those ，肯定不对等，错

dreadpower

再比如这个句子：According to analysists, analliance between three major personal computer companies and most of the nation's largest local telephone companies would enable customers to receive internet data over regular telephone lines at speeds （（（that are）））much higher than are currently possible
    首先，我认为：这个句子本身在at speeds 后省略了that are，而这个比较，其实是比较从句：

    插分：
    1。 at speeds （that are high）（high的多）
    2。（at speeds that）are currently possible（high的少）
   

    不知道可以理解我的意思没有。

    有一点补充：这样的插分永远默认比较两个句子。

dreadpower

nina23，请注意一下发帖格式，好吗？？

      参见：http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=36320

shellyaaa

不好意思，我认为你的说法有误。

比较中，than 和 as 都可以兼做其后面比较部分的主语。（如果是主语和主语在比较的话） 所以都可以省略主语，直接接谓语。

没有你们说的那么复杂阿！

dreadpower

呵呵 ，我这个就是土办法，自己总结的。献丑了，不好意思