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标题: 问一道搞不懂的语法 [打印本页]

作者: lllmmm    时间: 2011-6-2 15:01
标题: 问一道搞不懂的语法
***************** entirely to shows
produced specifically for children.
(A) Although at one time children's programming had been limited to a few hours a week, now,
however, there are at least four cable networks that dedicate themselves
(B) With children's programming having been limited at one time to a few hours a week, now at
least four cable networks have dedicated themselves
(C) Once limited to a few hours a week, there are now at least four cable networks with children's
programming that dedicate themselves
(D) Children's programming was once limited to a few hours a week, but now there are at least four
cable networks dedicated
(E) While children's programming had once been limited to a few hours a week, at least four cable
networks are now dedicated

这道题E为什么不对请问   ?
作者: pygmysog    时间: 2011-6-2 15:57
had been是过去完成时,只有在有明显的过去时动词出现时才会用到过去完成时
作者: hldada    时间: 2011-6-2 16:12
恩,同意楼上,时态是主要错误,但我也不喜欢这里用while 总觉得有点怪怪的,呵呵
作者: 爱吃巧克力    时间: 2011-6-2 19:36
答案是D么?
E中,had done 错误,过去完成时的使用一定要有明确的提示证明发生在过去的过去。而这里连一个过去的动作都找不到,何来过去的过去
另外,值得一提的是while在gmat中更多地表示同时发生,表示对比的较少
作者: lllmmm    时间: 2011-6-3 16:52
答案是D




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