GMATPrep2008 语法笔记 V 2.02 第190题 句子究竟是什么语法

turboswm

The thirteen original British colonies in North America, some formed as commercial ventures, others as religious havens, each had a written charter that set forth its form of government and the rights of the colonists.
A.    some formed as commercial ventures, others as religious havens, each had a written charter
B.    some being formed as a commercial venture, others as religious havens, all of which had written charters
C.    some that formed as commercial ventures, others as religious havens, all had written charters
D.    with some being formed as a commercial venture, others as religious havens, all had a written charter      
E.    with some formed as commercial ventures, while others as religious havens, each had a written charter

本题中的 some formed as commercial ventures, others as religious havens, 究竟是什么语法，GMATPrep2008 语法笔记 V 2.02答案的解释中说是独立主格结构，但是我查过独立主格语法后发现，独立主格常用包括：名词(代词)+现在分词、过去分词；名词(代词)+不定式；名词(代词) +介词短语，那么本句中的formed显然不属于上述情况，那么应该怎么理解formed，是过去式还是被动式，这里是不是独立主格，还有some formed as commercial ventures, others as religious havens,如果不是独立主格而是独立句子那么前面加上while似乎更通顺。

turboswm

谢谢版主解答。本句中：
some formed as commercial ventures, others as religious havens,
和
each had a written charter that set forth its form of government and the rights of the colonists.
都是完整句子，所以我才不清楚究竟是什么结构，是不是独立主格。

Elroy

独立主格有三种形式：     prep 173.                                                             1)一般形式：n.+v-ed/v-ing/介词短语/形容词短语
2)with形式：with+宾语+宾补，如：with+n.+v-ed/v-ing/介词短语/形容词短语
3)each/some形式等词 （必须前面有复数名词,强调的是句尾名词）：each+v-ed/v-ing/介词短语/形容词短语，each+n.+介词短语                                                         独立主格表示对主句的一个信息补充说明，做状语功能。不要求逻辑主语，但要求和主句有逻辑关系。独立主格形式中都不是完整句子<==>同位语结构，一般是N.,n+that从句：that从句后是完整句子（前者状语，后者定语，不可互换）
这里注意 each with 结构是对的， with each 是错的

这才是完整的独立主格

turboswm

好的，谢谢你的解答，互相代替式。我想看看还有没有别的解释。

evysy

对，你的句子是对的，这个例子跟你的第2种句子是一样的（我不知怎么的忘打who了）
some...other... 就是代替who的

turboswm

你好，很感谢你的解答，我还是不清楚如何使用这种语法。
LZ Turboswm, entered CD as a GMAT student, had a written plan for taking the test.

这个句子如果我自己写通常会写为：

LZ Turboswm, entering CD as a GMAT student, had a written plan for taking the test.
或者
LZ Turboswm, who entered CD as a GMAT student, had a written plan for taking the test.

本题中究竟是采用什么语法我还是不清楚，我印象中几乎没有看过这种结构的句子。

evysy

其实就是一个修饰语:
LZ Turboswm, entered CD as a GMAT student, had a written plan for taking the test.

一个意思。

这里的entered和题里的formed一样，简单的过去分词，用来描述逗号前面的主语，唯一的trick就是加了some……others……