【已解决】请教OG12 100 E选项的OG解释

qiaowin88637

100. The stars, some of them at tremendous speeds, are in
motion just as the planets are, yet being so far away
from Earth that their apparent positions in the sky do
not change enough for their movement to be observed
during a single human lifetime.
(A) The stars, some of them at tremendous speeds,
are in motion just as the planets are, yet being
(B) Like the planets, the stars are in motion, some
of them at tremendous speeds, but they are
(C) Although like the planets the stars are in motion,
some of them at tremendous speeds, yet
(D) As the planets, the stars are in motion, some of
them at tremendous speeds, but they are
(E) The stars are in motion like the planets, some of
which at tremendous speeds are in motion but
正确答案B

但是OG说E答案：subject and verb of the second clause are omitted
可是some of which at tremendous speeds are in motion but so far way from earth that...有完整的主系表结构啊
some of which（which虽然错误的指代planet做逻辑主语，但好歹是主语）做主语，are系动词，in motion介词短语作表语，but后面不一定要跟完整主谓结构的句子也没问题啊（but前面又没有逗号）


困惑了。。求指点。。谢谢！！

qiaowin88637

后一句的主语不是planets，而是stars，不能省略。

-- by 会员 y001j (2012/4/28 15:32:30)

谢谢，我明白了，这样省略的话逻辑意思就完全错了。

y001j

后一句的主语不是planets，而是stars，不能省略。

qiaowin88637

谢谢回复。但是but前面没有逗号的情况，but后面一定要跟有完整主谓结构的句子吗？如果有的话，相同的主谓结构能否省略呢？

比如OG-43 正确句子
Laos has a land area comparable to that of Great Britain but a population of only four million people, many of whom are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north.
和E答案比较
planets at tremendous speeds are in motion but so far away from earth...

OG43省略了but后的主谓，但是E为什么不行呢？
Laos has a land area comparable to that of Great Britain but (Laos has) a population of only four million people
planets at tremendous speeds are in motion but (planets are) so far away from earth...

y001j

second clause 指的是but后面的未划线部分。