将前面完整句子描述过的名词，做句尾的补充修饰，在 GMAT SC 是 acceptable 的 有两种基本的形式: (1) 将前述名词的"部分"补充说明 (和本题是一样的用法): 例子如下: https://goo.gl/rdkWHJ 我们把正确句子节录下来: At the turn of the twenties century, forest covered as much as 90 percent of Thailand and accommodated as many as 300,000 elephants, a third of them domesticated and performing various essential tasks. 在绿底部分，句子已经完成了，而 a third of them (elephants) 则是把前面的 elephants 当中的 1/3 用分词另外说明 (domesticated and performing) 在你提问的这句也是: According to a recent study of consumer spending on prescription medications, increases in the sales of the 50 drugs that were advertised most heavily accounted for almost half of the $20.8 billion increase in drug spending last year, the remainder of the increase coming from sales of the 9,850 prescription medicines that companies did not advertise or advertised very little. 绿底部分已经是完整句子了，而再用 remainder 表示剩余的 increase 部分补充说明 (2) 将前述名词的"所有格"做补充说明: 简单例子: Ron 提供的例子如下 "John, his arms flailing in the wind, called out desperately for help." ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 这并不是同位语，也不是双主词的句子架构错误，而是补充说明前面名词的所有格 实际考题例子如下: https://goo.gl/Iwyjw2 我们在这里使用 GMAT 正确句子说明: With surface temperatures estimated at minus 230 degrees Farenheit, Jupiter's moon Europa has long been considered far too cold to support life, its 60 square miles of water though to be frozen from top to bottom 主要句子在绿色部分已经完成，而後面补出 its (Europa's) 60 square miles of water 再另外加上 "though to be" 的分词来补充说明。 这是 GMAT SC 接受的文法规则，并不是 sentence fragment ※ 引述《xlxl (Well...)》之铭言： : 想请教以下这题(我的mac贴上来後格式怎麽改都好怪,请大家点连结看题目好了) : http://forum.chasedream.com/thread-387950-1-1.html : og17 720 : According to a recent study of consumer spending on prescription medications, : increases in the sales of the 50 drugs that were : dvertised most heavily accounts for almost half of the $20.8 billion increase in : drug spending last year, the remainder of which prescription medicines that : companies did not advertise or advertised very little. : A. heavily accounts for almost half of the $20.8 billion increase in drug spending last year, the remainder of which came : B. heavily were what accounted for almost half of the $20.8 billion increase in drug spending last year; the remainder of the increase coming : C. heavily accounted for almost half of the $20.8 billion increase in drug spending last year, the remainder of the increase coming : D. heavily, accounting for almost half of the $20.8 billion increase in drug spending last year, while the remainder of the increase came : E. heavily, which accounted for almost half of the $20.8 billion increase in drug spending last year, with the remainder of it coming : 答案是C : 但我一开始就因为觉得C是sentence fragment而把它删掉了 : 查看到有网友说这是absolute phrase : 但还是有点看不懂，不知道有没有人可以说明一下怎麽判断到底是sentence fragment : 还是absolute phrase(实在看不太懂absolute phrase的定义) -- Donz GMAT 实力班: http://www.donzgmat.com/course-5weeks Donz GMAT FB: https://www.facebook.com/groups/DonzGMAT Donz 全科线上机经课: 请写信至 [email protected] --

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