各位好，查遍了论坛还是解决不了疑惑，所以来发帖望各位NN能来解答疑惑。
首先是论坛里对两者区别的简单说明：
同位语修饰名词或者短语，必须对修饰对象加油解释力，在修饰名词前后。结构：1）n, n; 2)n, a/an +n; 3) a/an n, n; 4) the+n, n；5）n+that clause; 6) n, n(重复修饰名词)+that clause; 7)n, one/ones+that clause
独立主格在句首或者句尾，做状语，表伴随原因、条件或状态。独立主格不跟从句，只有：1）n+n.; 2）n+_ed/_ing; 3）n+介词短语；4） n+形容词短语；或者以上结果前带with; 最后句尾each型主格，each带以上四种结构。
所以他们俩有两个非常明显的区别：1、同位语修饰名次或者短语；独立主格修饰整个句子；2、独立主格不跟从句
但之前看到一个同位语的解释（好像是在PREP08里），称同位语有这样一个用法：概括性同位语：用一个概括性的名词去概括前面的修饰对象：短语/句子，n. +that/doing/done...
前面是短语或者句子的话，这样同位语是不是就修饰整个句子了？
以下是OG里的题目
OG 17 766 In 2000, a mere two dozen products accounted for half the increase in spending on prescription drugs, a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing many more prescriptions for higher-cost drugs.
(A) a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing (B) a phenomenon that is explained not just by the fact that drugs are becoming more expensive but also by the fact that doctors are writing (C) a phenomenon occurring not just because of drugs that are becoming more expensive but because of doctors having also written 答案是B，这里phenomenon修饰的好像是前面整个句子，但是独立主格又不能跟that....so?
OG 17 754 Unlike the original National Museum of Science and Technology in Italy, where the models are encased in glass or operated only by staff members, the Virtual Leonardo Project, an online version of the museum, encourages visitors to "touch" each exhibit, which thereby activates the animated functions of the piece (A)exhibit, which thereby activates (B)exhibit, in turn an activation of (C)exhibit, and it will activate (D)exhibit and thereby activate (E)exhibit which, as a result, activates 答案是D，首先想问为什么不能把B看成独立主格？n+介词短语的结构？然后论坛里面网友们都说把前面的touch 换成 activate之后，B就成了同位语，那么这样子的话，这算是同位语里面的什么结构呢？
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发表于 2016-10-16 12:05:24
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