To map Earth's interior, geologists use a network 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.
之前有同学发个这个问题了，不过讨论的点不太一样，我又重新发一下，复制了原来那个同学的题（http://forum.chasedream.com/foru ... &highlight=OG16）
我的问题是正确选项C中的COMMA+VING修饰的ricochet是不是从句动词？？如果是的话就说明句尾的Ving可以修饰从句动词，或给从句做伴随？这个纠结好久了 求助各位大神
86. To map Earth's interior, geologists use a network 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
OG解释
This sentence explains in detail an activity of geologists (using seismometers to chart waves), focusing primarily on the object, seismic waves. A description of these waves is developed in a relative clause (that originate ... hotter rocks) that contains a compound verb phrase (originate ... ricochet . .). The action, ricochet, is further described in a participial phrase in which traveling ... is then further described in a comparison of travel speeds in cold and hot regions of Earth's crust.
C Correct. The modifiers are parallel and correctly positioned in relation to the verb.
哈哈，谢谢回复两年前的帖子，答主已经毕业工作，题主状态应该也类似。
首先ricochet和travel意思重叠，不能并列，只能后者修饰前者。不过ricochet这词我到现在也不认识，现查字典知道的。。
退一步讲，即使能够并列，S that V1 and V2 and that V3句型非常别扭，不如说S that V1, V2, and V3。
做题步骤应该是slower秒杀三个，which远距离修饰秒一个。
祝你考试成功！
另外我倒是觉得这个E waves that, and that相当给力。。不像OG说的那么惨啊。只不过毁在了slower上。。
个人浅见~
我倒认为这是一个可以作为排除的split（parallelism）
E选项的结构是waves that originate… and ricochet rapidly...and that travel。简单来说就是，X that... and that...的结构，这种表达会造成歧义，好像是在说，这分别是X that orginated...and riochet... 和X that travel...
这里要考察的是parallel noun modifier, 修饰的是同一个noun。而重复that是gramatically correct but logically nonsensical
类似的错误选项在OG17/721也有。是讲combination of a reliable supply of water and good growing conditions。
错误选项B里有combination of a reliable supply of water and of good growing conditions。OG是这样点评的：the repetition of the preposition of before good growing conditions makes no sense. It seems to indicate that there is both a combination of a reliable supply of water and a combination of good growing conditions
travel是不修饰waves的，doing 表结果解释主语，表伴随修饰动词。这里的“traveling”是表示伴随的意思。
OG给出的解释是“the action, ricochet, is further described in a participial phrase in which traveling...is then further described in comparison of travel speeds in cold and hot regions of Earth's crust”
可见traveling修饰的时动词，ricochet本生。
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发表于 2015-8-9 21:24:45
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