标题: 这题彻底让我迷糊了，崩溃了，求教各位cdr! [打印本页] 作者: bhchka 时间: 2012-3-30 14:32 标题: 这题彻底让我迷糊了，崩溃了，求教各位cdr! 155.With surface temperatures estimated at minus 230 degrees Fahrenheit, Jupiter's moon Europa has long been considered far too cold to support life, and with 60 square miles of water thought to be frozen from top to bottom. A. Europa has long been considered far too cold to support life, and with B. Europa has long been considered far too cold to support life, its C. Europa has long been considered as far too cold to support life and has D. Europa, long considered as far too cold to support life, and its (B) E. Europa, long considered to be far too cold to support life, and to have 我选的是A，后来发现and 后面的with 引导的不是个句子，所以这个选项应该排除，答案是B，一开始我觉得逗号后面的its开头的句子不是一个很完整的句子吗，这样不是很明显的run-on句型么，解释是说这个its开头的句子是独立主格，我崩溃了，这以后怎么判断什么时候是run-on，什么时候是独立主格啊，作者: reebe 时间: 2012-3-30 16:37
个人见解哈， run-on 指用逗号连接的两个独立的完整句子，独立主格的结构是：n + n/Ved/Ving/介词短语/形容词短语。这道题its后面并不是一个完整的句子，而是一个n +Ved的结构，所以是独立主格。作者: 594davidvilla 时间: 2012-3-30 17:31
问个白痴点的问题， E为什么不对，to support life, and to have不是很对称么。是因为consider to be冗长了么。 还有A选项如果去掉and,只用with 做伴随对么。谢谢作者: reebe 时间: 2012-3-30 18:51
E选项，因为 long considered to be far too cold to support life是修饰Europa的，Jupiter's moon Europa and to have...根本不是个完整句子。若理解为修饰cold和to support life平行，那么too cold to have 60 square of water 也是个病句不成立。另外，consider sth (to be) adj ,一般趋于简洁，GMAT会省略to be。 A选项去掉and，私认为是正确的独立主格结构