一道曼哈顿语法题！

杀G曼巴

请问各位大牛，C 这里allowing them怎么理解？不是应该allowing themselves吗？   OA：C




Many of today’s mathematicians use computers to test cases that are either too time-consuming or involve too many variables to test manually, allowing the exploration of theoretical issues that were impossible to test a generation ago.

		are either too time-consuming or involve too many variables to test manually, allowing the exploration of
		either take too much time or involve too many variables to be tested manually; allowing the mathematicians to explore
		would either take too much time or involve too many variables to test manually, allowing them to explore
		would either be too time-consuming or would involve too many variables to test manually; this capability allows the mathematicians to explore
		take too much time or variables to test manually; this capability allows the mathematicians to explore

杀G曼巴

这道题Manhattan标注的难度是750.. 虽然我做对了（可以通过排除），但C真的非常勉强，不知道有没有大牛有什么见解？

LLEOE

allowing作伴随状语修饰前面的句子，这句话是说数学家可以用电脑测试这些非常复杂的案例的这件事允许数学家去探索这些问题，而不是数学家们自己允许自己去探索。

杀G曼巴

Note that these comma+ing modifiers may modify the subject of the sentence, but they will often do so by explaining why or how the subject is doing something:

Many of today’s mathematicians use computers, allowing them to explore theoretical issues.

Why do mathematicians use computers? To allow them to explore theoretical issues.

这是Manhattan老师的回复，这个观点我赞同，但是考虑到allowing的逻辑主语就是前面“Many of today’s mathematicians”，后面能用them吗？还是说them是acceptable suspect

杀G曼巴

LLEOE 发表于 2017-11-1 16:10
allowing作伴随状语修饰前面的句子，这句话是说数学家可以用电脑测试这些非常复杂的案例的这件事允许数学家 ...

同意！               

杀G曼巴

刚查了一下，伴随状语修饰的是前面这句话的动作，不一定逻辑主语要主句主语，是前面这句话
The pronoun them is also acceptable, as it points back to the subject of the first half of the sentence (many of today's mathematicians use computers, allowing them to explore...).

LLEOE

一般伴随状语放在主句前面的时候要考虑逻辑主语，而伴随状语放在主句后面的时候往往表示的是一种自然而然的结果，反正绝大多数题都是这样，但我还真不知道有啥语法依据。

杀G曼巴

LLEOE 发表于 2017-11-1 17:11
一般伴随状语放在主句前面的时候要考虑逻辑主语，而伴随状语放在主句后面的时候往往表示的是一种自然而然的 ...

今天无意看到一个语法点，想起这道题，有点新想法，分享一下~

A) 逻辑主语=句子主语，为伴随状语，对主句进一步解释；必须与主句动作同时发生，不能有时间断层。如果句意上有时间断层，一般改为定语从句；(M12章)
B) 逻辑主语=主句全句，为结果状语 (可以有时间上的断层)，可以在分词前面加thus，thereby，in effect等；

我觉得你之前理解的语义方向非常对，不过这里逻辑上感觉应该理解为结果状语语义更符合，这里其实是有一个因果关系的，可以参考上面的语法点作为原则支撑