关于while的用法

weirui5621

请教下牛人，有没有能够总结下while的用法的帖子

这个次有时候表示并列同时发生，有时候表示转移意味，而且在大多数情况下都是错的，如下面这个例子：新prep167
167.(26958-!-item-!-188;#058&002073)



On August 13, 1868, the warship U. S. S. Wateree, anchored in the harbor of Arica, off the coast of what is now northern Chile, rode on the crest of a tsunami (seismic sea wave) and coming to rest in the Atacama Desert, it was some three miles up the coast and almost two miles inland from its initial anchorage.

A. rode on the crest of a tsunami (seismic sea wave) and coming to rest in the Atacama Desert, it was

B. rode on the crest of a tsunami (seismic sea wave), while it came to rest in the Atacama Desert,

C. rode on the crest of a tsunami (seismic sea wave) and came to rest in the Atacama Desert,

D. riding on the crest of a tsunami (seismic sea wave), to come to rest in the Atacama Desert

E. riding on the crest of a tsunami (seismic sea wave), it had come to rest in the Atacama Desert, which is

答案C
B就用了一个while来表示并列，不过没有用and的那么简洁

那么能不能有人能够总结下while的用法呢？感激不尽

pennyconan

在表示转折的同时看有没有同时发生的意思。
http://forum.chasedream.com/GMAT_SC/thread-21348-1-1.html
http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=35969

weirui5621

感谢LS解答问题

embracechange

anchored in the harbor of Arica 是US Warship的后置定语？

off the coast of what is now northern Chile修饰前面的harbor？

全句的真正主语是rode？

rode on the crest of a tsunami (seismic sea wave) and came to rest in the Atacama Desert, some three miles up the coast and almost two miles inland from its initial anchorage. 不明白some three miles up...前面为什么要有逗号呢？

超超琪琪格

主语当然是warship， some three miles up the coast and almost two miles inland from its initial anchorage.这个我也觉得有点奇怪，是修饰desert的吧？那是什么成分呢？谁能把整个句子的结构分析一下？