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
OA:C
B选项which右面有个comma，表示which引导的从句是插入语，和后面的and slowly…无法形成平行对比关系。
插入语在归纳主旨意思是可以省略，后面的, and … 如果是独立句，则缺少主语；如果和前句共享主语，则表示平行，那么前面的… crust and ricochet…中的and，就应该用commma代替。
好的，我们要说一下跳跃修饰这个问题，跳跃修饰的结构是：n.+prep./V-ing/parentheses, which...这个时候可以用跳跃修饰。E.g:OG13: 29. Emily Dickinson’s letters to Susan Huntington Dickinson, which werewritten over a period beginning a few years before Susan’s marriage to Emily’sbrother and ending shortly before Emily’s death in 1886, outnumber her lettersto anyone else. 但要注意能否用跳跃修饰的核心在于main idea. 有些符合这样的结构可是却不能理解成跳跃形式，因为句子会wordy or unclear.
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发表于 2015-9-4 14:56:12
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