In January 1994 an oil barge ran aground off the coast of San Juan, Puerto Rico, leaking
its cargo of 750,000 gallons into the ocean, while causing the pollution of the city’s
beaches.
22
A. leaking its cargo of 750,000 gallons into the ocean, while causing the pollution of
B. with its cargo of 750,000 gallons leaking into the ocean, and it polluted
C. and its cargo of 750,000 gallons leaked into the ocean, polluting
D. while it leaked its cargo of 750,000 gallons into the ocean and caused the
pollution of
E. so that its cargo of 750,000 gallons leaked into the ocean, and they were polluting
ANS C
A为什么不对呢?
In January 1994 an oil barge ran aground off the coast of San Juan, Puerto Rico, leaking its cargo of 750,000 gallons into the ocean, while causing the pollution of the city's beaches.
22
A. leaking its cargo of 750,000 gallons into the ocean, while causing the pollution of
B. with its cargo of 750,000 gallons leaking into the ocean, and it polluted
C. and its cargo of 750,000 gallons leaked into the ocean, polluting
D. while it leaked its cargo of 750,000 gallons into the ocean and caused the
pollution of
E. so that its cargo of 750,000 gallons leaked into the ocean, and they were polluting
ANS C
A为什么不对呢?
请用句子中逻辑主语和逻辑谓语来仔细理解一下句子的逻辑关系。
A leaking its cargo of 750,000 gallons into the ocean, while causing the pollution of
那么LEAKING 了什么呢？从逻辑上判断应该是OIL，但A LEAKING 了CARGO。因此是不对的。
c也是 its cargo leak了?也不对啊?
请指教
C and its cargo of 750,000 gallons leaked into the ocean, polluting
这里的AND 连接了ITS CARGO 和an oil barge
形成了一个双主语的结构，LEAKED是接在ITS CARGO的后面，因此是ITS CARGO的动词，也正好和前面的RAN对称！
这里把逻辑宾语OIL省掉了！
C and its cargo of 750,000 gallons leaked (oil)into the ocean, polluting
这里的AND 连接了ITS CARGO 和an oil barge
形成了一个双主语的结构，LEAKED是接在ITS CARGO的后面，因此是ITS CARGO的动词，也正好和前面的RAN对称！
这里把逻辑宾语OIL省掉了！
oil是补在leak的后面嘛?
我觉得这道题最要考察时的是动作之间的关系，doing一般表伴随，或者伴随动作，或者伴随结果。
是因为 an oil barge ran aground off and its cargo of 750,000 gallons leaked into the ocean, 才导致污染这种结果的，polluting伴随结果，除了C以外，其他的逻辑关系都不对。
我觉得这道题最要考察时的是动作之间的关系，doing一般表伴随，或者伴随动作，或者伴随结果。
是因为 an oil barge ran aground off and its cargo of 750,000 gallons leaked into the ocean, 才导致污染这种结果的，polluting伴随结果，除了C以外，其他的逻辑关系都不对。
就是这个道理了. C对. 是造成polluting的是leak,
A 中好象成了oil barge ran aground off the coast, 造成了leaking and polluting, 逻辑错误.
好像gwd里也有此题,当时选了c
刚才做到这题,选了a
再看一遍,还是'应该选c
怎么办哪,马上考试了,语法还是没有清晰的感觉
希望大家继续讨论，楼上我不记得GWD有这个题啊？
我当时没选C是因为觉得有run-on问题。而且while的确有不跟句子的时候，do sth while doing sth几乎是GMAT中的固定搭配了。如果说我对A还有什么戒心的话，那就是：while前面最好不加comma.
再次希望大家继续讨论
举个 do sth while doing sth的例子：
大全95 Although some officials noted that using machines for farming in China costs more than traditional hand cultivation, the mechanization of farming in the village of Long Bow doubled the corn yield while the previous year’s costs were cut in half.
(A) mechanization of farming in the village of Long Bow doubled the corn yield while the previous year’s costs were cut in half
(B) mechanization of farming in the village of Long Bow doubled the corn yield while cutting costs to half those of the previous year
(C) mechanization of farming in the village of Long Bow doubled the corn yield as cost were cut to half of the previous year’s
(D) farming mechanization in the village of Long Bow doubled the corn yield as it cut in half the previous year’s costs（B）
(E) farming mechanization in the village of Long Bow doubled the corn yield while costs were cut to half that of the previous year
举个do sth while doing sth的例子
大全95 Although some officials noted that using machines for farming in China costs more than traditional hand cultivation, the mechanization of farming in the village of Long Bow doubled the corn yield while the previous year’s costs were cut in half.
(A) mechanization of farming in the village of Long Bow doubled the corn yield while the previous year’s costs were cut in half
(B) mechanization of farming in the village of Long Bow doubled the corn yield while cutting costs to half those of the previous year
(C) mechanization of farming in the village of Long Bow doubled the corn yield as cost were cut to half of the previous year’s
(D) farming mechanization in the village of Long Bow doubled the corn yield as it cut in half the previous year’s costs（B）
(E) farming mechanization in the village of Long Bow doubled the corn yield while costs were cut to half that of the previous year
版主的意思是不是说：SVO, and SVO这种形式是对的
那我就顺下来总结一下comma的用法吧，我记得这几种情况是对的：
SVO and VO
SV who VO, and who VO
SVO, VO, and VO
好像这个情况是错的：
SVO, and VO
NN们看看吧，有错误的话帮我纠正一下，谢谢了！
举个 do sth while doing sth的例子：
大全95 Although some officials noted that using machines for farming in China costs more than traditional hand cultivation, the mechanization of farming in the village of Long Bow doubled the corn yield while the previous year’s costs were cut in half.
(A) mechanization of farming in the village of Long Bow doubled the corn yield while the previous year’s costs were cut in half
(B) mechanization of farming in the village of Long Bow doubled the corn yield while cutting costs to half those of the previous year
(C) mechanization of farming in the village of Long Bow doubled the corn yield as cost were cut to half of the previous year’s
(D) farming mechanization in the village of Long Bow doubled the corn yield as it cut in half the previous year’s costs（B）
(E) farming mechanization in the village of Long Bow doubled the corn yield while costs were cut to half that of the previous year
请注意本题中while引导成分的逻辑主语
這題的關鍵在於leak這個詞，
其實a.的while causing 沒有錯，只是比較wordy，也不存在雙主詞的什麼結構，
單純連接兩個句子，但是重點還是在leak 慣用 intransive 只有c才對。
2{longman}
[intransitive always + adverb/preposition]if a gas or liquid leaks somewhere, it gets through a hole in something
ￚsynonym seep
leak into/from/out
Sea water was leaking into the batteries which powered the electric motors.
while doing在og中的例子
233. Recently implemented "shift-work equations" based on studies of the human sleep cycle have reduced sickness, sleeping on the job, fatigue among shift workers, and have raised production efficiency in various industries.
(A) fatigue among shift workers, and have raised
(B) fatigue among shift workers, and raised
(C) and fatigue among shift workers while raising
(D) lowered fatigue among shift workers, and raised
(E) and fatigue among shift workers was lowered while raising
The best answer, C, grammatically states that the equations... have reduced x, y, and i. and have raised efficiency. Choices A and B fail to use and to signal that fatigue among shift workers completes the series begun by have reduced, and so produce awkward and unclear sentences. Both D and E fail to use and to introduce the last item in the list, which is sleeping in these constructions. In E, while raising has no logical referent, producing only the absurd statement that fatigue has raised efficiency.
所以不能把while doing作为错误点
继续请教
大全中另一个while doing 例子
246. Joachim Raff and Giacomo Meyerbeer are examples of the kind of composer who receives popular acclaim while living, often goes into decline after death, and never regains popularity again.
(A) often goes into decline after death, and never regains popularity again
(B) whose reputation declines after death and never regains its status again
(C) but whose reputation declines after death and never regains its former status
(D) who declines in reputation after death and who never regained popularity again
(E) then has declined in reputation after death and never regained popularity
我觉得此题a的错误是逻辑主语问题
In January 1994 an oil barge ran aground off the coast of
A) leaking its cargo of 750000 gallons into the ocean, while causing the pollution of
leaking的主语是an oil barge 是一艘驳船，不能主动leaking，也不能主动causing
而是驳船翻了，并漏油这件事，污染了。。。。。
逻辑意思最重要啊
是C了 应该是这件事产生pollute
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