大全401 - 关于同位语结构的题

iamyamy

thanks to all

elric9

up

mao猫子

4 in terms of physics, the characteristic feature of the roller coaster is that the cars' potential energy, gained through their being lifted by a chain drive through the earth's gravity to the top of the first drop, has been converted to kinetic energy by the time the ride ends.  b--àd
(a) cars' potential energy, gained through their being lifted by a chain drive
(b) cars' potential energy, a gain achieved as they are lifted by a chain drive
(c) potential energy from the cars' being lifted by a chain drive
(d) potential energy of the cars, gained as a chain drive lifts them
(e) potential energy gained by the cars, being achieved while a chain drive lifts them
A选项中的their指代的是energy，但是他的本意是想指代cars；B选项中they指代的还是energy，本意是想指代cars；E选项中的them指代的还是energy；答案在C,D中选择，但是GMAT更倾向用主谓结构而不是介词结构修饰，因为主谓结构表达更加明确 。
当然这是个人简介，希望大N来指正。

小小明噢耶

being用法 分享一下嘻嘻
being 用法
1)        being在一般情况下强调事物正在进行或正在保持一种状态，其强调的是动作的连续.
（特例：在介词结构后表达被动，则补出being，不表达进行
without their being grounded 错
without being grounded 对
was probably buried to keep it from being stolen by invaders.）

Besides a concert performance being staged by the composer himself in 1911, S’s opera was … 逻辑上判断，being应省略，因为staged这个动作仅发生在过去，并没有持续

the students are being increasingly successful in the job market. 在描述正在展开的事件时becoimg比Being更precise
Smokers frequently express anxiety that their prospects for being hired and promoted are being stunted by their habit. 强调进行状态和同时性
2) being在逗号后，则being修饰前面句子(的主语)(即作状语)而不是就近名词