想哭，想不通???

eatambre

.To map Earth’s interior, geologists use a network ofseismometers to chart seismic waves that originate in the earth’s crust andricochet around its interior, most rapidly traveling through cold, denseregions and slower through hotter rocks. C
(A) interior, most rapidly traveling throughcold, dense regions and slower
(B) interior, which travel most rapidlythrough cold, dense regions, and more slowly
(C) interior, traveling most rapidly throughcold, dense regions and more slowly
(D) interior and most rapidly travel throughcold, dense regions, and slower
(E) interior and that travel most rapidlythrough cold, dense regions and slower


C选项中的travelling修饰richochet,也就是它的逻辑主语是waves。好的，这跟我的想法一致，可是它把travelling放在这个地方，逻辑主语不应该是geologists吗，感觉想表达的和实际表达的不一样啊！啊啊啊啊！????

eatambre

自己找到了一个让人醍醐灌顶的解释，分享给大家

eatambre

Can you please explain that in OA HOW and WHAT COMMA+VERBing(TRAVELLING) refers to?
Generally, COMMA + VERBing serves to refer to the agent of the NEAREST PRECEDING ACTION.
OA: waves that...ricochet around its interior, traveling most rapidly through cold, dense regions.
Here, the action that most closely precedes COMMA + traveling is ricochet.
Thus, traveling serves to refers to waves, the agent of this action.
Conveyed meaning:
As waves RICOCHET, they are at the same time TRAVELING.
Quote:
2) Can you please explain more about that and which clause can't be connected by conjunction and and hence can't be VALID parallel structure.
Parallel forms must serve the SAME FUNCTION.
A that-modifier is an ESSENTIAL MODIFIER: one that is necessary to convey the intended meaning of the sentence.
A which-modifier is a NONESSENTIAL MODIFIER: one that can be removed without altering the basic meaning of the sentence.
Since a that-modifier and a which-modifier serve different functions, they cannot be connected by a conjunction such as and.

eatambre

emmahiggins09 发表于 2017-4-1 22:11
这是个经典的例子，comma ving 修饰逗号前动作的发出者：

1/如果逗号前是简单句那么动作的发出这就是这简 ...

感谢，呜呜呜～

Mr.Long

emmahiggins09 发表于 2017-4-1 22:11
这是个经典的例子，comma ving 修饰逗号前动作的发出者：

1/如果逗号前是简单句那么动作的发出这就是这简 ...

同意！               

emmahiggins09

这是个经典的例子，comma ving 修饰逗号前动作的发出者：

1/如果逗号前是简单句那么动作的发出这就是这简单句的主语
2/如果逗号前是拥有从句形式的mdofier (例如上题是 S + V + O + that clause)，那么动作的发出者就不一定是S 而是要看comma Ving 的动作发出者是什么，在这题里comma Travelling 的动作发出这是 waves 而不是主语 geologists