OG179一个从来没有涉及的问题

179. During the early years of European settlement on a continent that was viewed as "wilderness" by the newcomers. Native Americans, intimately knowing the ecology of the land. were a help in the rescuing of many Pilgrims and pioneers from hardship, or even death.
(A) Native Americans, intimately knowing the ecology of the land, were a help in the rescuing of
(B) Native Americans knew the ecology and the land intimately and this enabled them to help in the rescue of
(C) Native Americans, with their intimate knowledge of the ecology of the land, helped to rescue
(D) having intimate knowledge of the ecology of the land. Native Americans helped the rescue of
(E) knowing intimately the ecology of the land, Native Americans helped to rescue

THE key is C但是有一个疑点就是native americans 是给两个逗号隔开的 是不是会形成与newcomers同为语的歧异?anybody have ideas?

179. During the early years of European settlement on a continent that was viewed as "wilderness" by the newcomers, Native Americans, intimately knowing the ecology of the land. were a help in the rescuing of many Pilgrims and pioneers from hardship, or even death.
(A) Native Americans, intimately knowing the ecology of the land, were a help in the rescuing of
(B) Native Americans knew the ecology and the land intimately and this enabled them to help in the rescue of
(C) Native Americans, with their intimate knowledge of the ecology of the land, helped to rescue
(D) having intimate knowledge of the ecology of the land. Native Americans helped the rescue of
(E) knowing intimately the ecology of the land, Native Americans helped to rescue

题目应该是这样得，有没有NN解答？

我的版本是句号。。。楼上的朋友。

179.  During the early years of European settlement on a continent that was viewed as "wilderness" by the newcomers. Native Americans, intimately knowing the ecology of the land, were a help in the rescuing of many Pilgrims and pioneers from hardship, or even death.

(A)  Native Americans, intimately knowing the ecology of the land, were a help in the rescuing of

(B)  Native Americans knew the ecology and the land intimately and this enabled them to help in the rescue of

(C)  Native Americans, with their intimate knowledge of the ecology of the land, helped to rescue

(D)  having intimate knowledge of the ecology of the land. Native Americans helped the rescue of

(E)   knowing intimately the ecology of the land, Native Americans helped to rescue

从句子结构分析来看，newcomers后面肯定是逗号的，因为during引导的并非是一个完整的句子，只是during引导的状语从句中还包含了一个定语从句用来修饰continent。

既然during引导的只是一个时间状语从句，那么如果Native Americans作为newcomers的同位语的话，划线部分及其后面未划线部分都成为that引导的定语从句的一部分，整个句子就没有主语了，根本就无法成为一个完整的句子。因此，Native Americans在这里是主句的主语，不会造成修饰歧义的问题。