标题: 求牛人指点此题，小弟不胜感激 [打印本页] 作者: bobchowz 时间: 2011-8-29 11:21 标题: 求牛人指点此题，小弟不胜感激 Navigators have known for thousands of years that the ocean has variable currents, but it is only in the last half century that a reasonably clear picture has emerged of the patterns and causes of ocean currents.
a reasonably clear picture has emerged of the patterns and causes of ocean currents
a reasonably clear picture of the patterns of ocean currents and their causes have emerged
a reasonably clear picture emerged of ocean currents, their patterns and the causes of them
there have emerged a reasonably clear picture of the patterns of ocean currents and what caused them
there had emerged a reasonably clear picture of the patterns of ocean currents and their causes
C按照句意emerged应该是分词形式，所以C没有动词 DE的there指代不对（有没有能更明确的解释一下，我的印象里，there很少是考点，除非五个选项都有，否则对的可能性小）作者: CC梦洁 时间: 2011-9-28 18:48
可不可以讲解一下A为什麽对？ a reasonably clear picture has emerged of the patterns and causes of ocean currents emerged 后面接of 吗？还是 a reasonably clear picture of the patterns and causes of ocean currents 的部分被后置了？