求问OG的一题

theveryceci

To map Earth’s interior, geologists use a n etwork of seismometers to chart seismic waves that originate in the earth’s crust and ricochet around its interior, most rapidly traveling through cold, dense regions and slower through hotter rocks.
A interior, most rapidly traveling through cold, dense regions and slower

B interior, which travel most rapidly through cold, dense regions, and more slowly

C interior, traveling most rapidly through cold, dense regions and more slowly

D interior and most rapidly travel through cold, dense regions, and slower

E interior and that travel most rapidly through cold, dense regions and slower

正确选项是C。

但是我记得Ron曾经说过，逗号+doing，那这个doing一定是主句SVO的S发生的动作。

但这里很明显traveling是seismic wave 发出来的。

然后OG的官方解释的是traveling修饰的是这里的ricochet这个动作。

感谢各位大神！！！！

theveryceci

我已经自己解决了。manhattan上面chapter10最后写了：可以用逗号+动词ing 来代替独立主格，放在句子的末尾，来indicate a result of the preceding clause. 供大家参考！！ 另外Ron和Manhattan真是语法利器！！！