请教Verbal分册里SC103题(比较级问题)

maggie303

103.Inuits of Bering Sea were in isolation from contact with Europeans longer than Aleuts or Inuits of the North Pacific and northern Alasla.
A . in isolation from contact with Europeans longer than
B. isolated from contact with Europeans longer than
C. in isolation from contact with Europeans longer than were
D.isolated from contact with Europeans longer than were
E. in isolation and without contacts with Europeans longer than
我选择了B，正确答案是D.解释说不加were会造成比较主体的混淆。
但是加了were后是说比较主体能确定为Inuits of Bering sea距离Europeans 和Inuits of Bering sea距离Aleruts or Inuits of Norther Pacific...的比较了吗？因此是省略了Inuits of Bering Sea, in isolation from contact with，只留下了谓语和介词宾语？？如果是这样省略，总觉得这后边部分句子非常变扭。
如果说是比较Inuits of Bering sea距离Europeans和Aleruts or Inuits of Norther Pacific距离Europeans,难道是主语和were倒装?可是than后面倒装我没有查到这样的语法。

请大家帮助解答。
谢谢

maggie303

求解自己顶下

waterblue01

这里是主语进行比较，由于最后有介宾短语，所以如果than后面不加动词则会产生歧义（1，主语比较，2，介宾后面的宾比较）
然后是A do sth. than B do 也可以写成 A do sth. than do B，可能你没有找到相关的资料。在OG13的解析和Prep的解析里面都有提到。

maggie303

waterblue01 发表于 2013-12-10 19:37
这里是主语进行比较，由于最后有介宾短语，所以如果than后面不加动词则会产生歧义（1，主语比较，2，介宾后 ...

先谢谢你的回复，好激动，头次发帖。现在去找解析看看，确实没找到可以do B的语法依据

maggie303

waterblue01 发表于 2013-12-10 19:37
这里是主语进行比较，由于最后有介宾短语，所以如果than后面不加动词则会产生歧义（1，主语比较，2，介宾后 ...

找了很久，只在987大全注释里找到只字片语，The phrasing of the comparisons in choices A, B, and E is incomplete, so the comparisons are ambiguous: because longer than could be followed by either from or were, it is unclear whether Inuits of the Bering Sea were isolated from Europeans longer than from the other Native American groups, or whether they were isolated from Europeans longer than the other groups were. In A and C, in isolation from contact is wordy and unidiomatic. The awkward phrasing of E further distorts the sense of the sentence: because with cannot idiomatically serve as the preposition for in isolation, the sentence suggests that the Bering Sea Inuits were totally isolated. Choice D is best: it employs concise, idiomatic phrasing to express a logically complete comparison.
主要前面有Europeans，省了were就会产生歧义：than后的Aleuts or Inuits 跟前面Inuits和Europeans哪个比。
如果你有更好的索引资料，请告诉我。特别是倒装。谢谢

maggie303

度娘强大，此问题已解决，还找到了CR里的例句来支持。开心

patricialiu

isolated from contact with Eurpoeans longer than from。。。补出from 【“与Euro隔离的时间比与后面的所描述的主体隔离的时间长”】
isolated from contact with Eurpoeans longer than were。。。补出were【“与Euro隔离的时间比Aleuts or Inuits of the North Pacific 与northern Alaska隔离的时间长”】