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题库 / Prep2008E2-SC-207
Studying the fruit fly, a household nuisance but a time-honored experimental subject, has enabled the secrets of how embryos develop to begin to be unraveled by scientists.
Studying the fruit fly, a household nuisance but a time-honored experimental subject, has enabled the secrets of how embryos develop to begin to be unraveled by scientists.
By the study of the fruit fly, a household nuisance and also a time-honored experimental subject, it was possible for the secrets of how embryos develop to begin to be unraveled by scientists.
By studying a household nuisance but a time-honored experimental subject, the fruit fly enabled scientists to begin to unravel the secrets of how embryos develop.
By studying the fruit fly, a household nuisance and also a time-honored experimental subject, the secrets of how embryos develop are beginning to be unraveled by scientists.
The study of the fruit fly, a household nuisance but a time-honored experimental subject, has enabled scientists to begin to unravel the secrets of how embryos develop.
看与和前面状语的关系，study the fruit fly的是人，不是其他东西。CD错。
A 不能使某人/某物能够被如何，be able/enable to be done是错的。I'm currently unable to be hired by the XX Corporation, because my visa application is still pending.这个句子是可以的，因为可以说我没有能力（使自己）被雇佣。
B，it was possible for the secrets to be unraveled，逻辑错误，秘密不能发起任何主观的动作，不能to be unraveled。应该是t is possible for scientists to unravel the secrets。
it was adj for sb/sth to do sth也表示某人/某物具备一种能力去做某事；通常不说by the study，是by studying
主语是谁？？考虑清楚！
https://www.manhattanprep.com/gmat/forums/gmat-prep-sc-t12770.html
He was killed by using knife.这个句子里using没有逻辑主语，介宾通常就是没有逻辑主语的，不同于伴随状语。
He was killed by using knife by a robber，不佳，robber作为by doing的逻辑主语，应该处于一条顺行的逻辑链上，
By using knife, a robber killed him. using的逻辑主语是robber，kill的主语也是robber，逻辑链顺畅。
By using knife, he was killed by a robber.using的逻辑主语是robber，be killed的逻辑主语是he，逻辑链拧成了麻花，复杂化了而且不利于解意。
你说啥呢
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A，不能使某人/某物能够被如何，be able/enable to be done是错的。I'm currently unable to be hired by the XX Corporation, because my visa application is still pending.这个句子是可以的，因为可以说我没有能力（使自己）被雇佣。
B，it was possible for the secrets to be unraveled，逻辑错误，秘密不能发起任何主观的动作，不能to be unraveled。应该是t is possible for scientists to unravel the secrets。
it was adj for sb/sth to do sth也表示某人/某物具备一种能力去做某事；通常不说by the study，是by studying
C，果蝇使得科学家能够，错误
C/D，By studying the fruit fly逻辑上是scientists发起的动作，应该离scientists越近越好。
B，通过研究，秘密被科学家揭露是可能的。
C，果蝇使得科学家能够，错误
D/E，研究作状语VS研究作定语，E研究使科学家能够开始揭露秘密，研究作为语意的重要成分，作主语处在第一层，比作状语处在第二层更有利于表意。
D/E也有study作动词还是名词的差异，对果蝇的研究使科学家开始理解某事，说明研究还没有结束，用动词比名词好。但这些属于小点，先看成分，利用成分表达语意是否做到最优，大于除构句错误以外的其他错误点或瑕疵点。
enable，使能够；enable sb/sth to do sth,使某物/某人能够作某事。
类似于able/capable，不能说be able to be done，be capable of being done，能力是你自己所有的一种能力，被如何如何动作的发起者是别人，不是你，不能说有能力被如何如何
一定要注意逻辑主语的问题...
真正正确的选项的每一点都是（相对）最优的
不管什么时候都一定要关照逻辑主语的问题
两个考点
一、
ok Something enables people to hear sounds.
x Something enables sounds to be heard by people.
二、
x Coming home from school, the wind blew me off my bike.
modifier—>who/what was coming home?
Study的主语一定要是人来study
the scientists did the studying., so, the modifier about studying should be as close as possible to "scientists".
("by the study of..." is problematic idiomatically as well.)
Still no, because "enabled" should still be used to describe an actual ability. I.e., if you wouldn't say that someone/something is able to do something, then you can't use "enabled" to express that idea, either.
时间用了好多才理解到dp是逻辑主语迅速排出bcd