hi!!我想向各位请教一下概括性同位语&独立主格结构的区分。
主要是两者一般都是：xxxx（句子）, noun+noun modifier的结构，所以我有点分不清到底是对前句进行概括还是有其他作用。
举两个例子：
第一个是og19-287
Floating in the waters of the equatorial Pacific, an array of buoys collects and transmits data on long-term interactions between the ocean and the atmosphere, interactions that affect global climate.
(A) atmosphere, interactions that affect (B) atmosphere, with interactions affecting (C) atmosphere that affects (D) atmosphere that is affecting (E) atmosphere as affects 答案是A，然后我翻看了各路帖子都写的是interaction是同位语结构，因为interaction起补充说明的作用
第二个是og19-288 Sixty-five million years ago, according to some scientists, an asteroid bigger than Mount Everest slammed into North America, which, causing plant and animal extinctions, marks the end of the geologic era known as the Cretaceous Period.
A. which, causing plant and animal extinctions, marks
B. which caused the plant and animal extinctions marking
C. and causing plant and animal extinctions that mark
D. an event that caused plant and animal extinctions, and it marks
E. an event that caused the plant and animal extinctions that mark 答案是E，我就是对这里的E的event疑问比较大 按照“同位语起修饰作用、进行补充说明；独立主格与主句间有逻辑关系，表原因、状态等”这个原则的话，我认为这里的event应该是一个独立主格结构，但我不是很确定，上网搜的话各种说法都有，想向各位请教一下~
另外我看的概括性同位语和独立主格的用法基本都是在句尾noun+noun modifier，所以我想问一下区分它们除了句子意思上认识得更清楚外，实际上在语法中是不是没有差别？（也可能是我语法知识有欠缺，没有注意到两者的用法差别）
先提前感谢各位！
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发表于 2018-9-11 00:54:37
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