求助：OG verbal review第二版33

udsifhi

33. The Wallerstein study indicates that even after a
decade young men and women still experience some
of the effects of a divorce occurring when a child.
(A) occurring when a child
(B) occurring when children
(C) that occurred when a child
(D) that occurred when they were children
(E) that has occurred as each was a child

答案（D）。E选项不懂那里错。
就是OG10的第一题。搜了之前论坛里的讨论，基本都在谈as和when的区别问题。但是现在OG自己改了对E的解析，没提as/when了，变成了：E Each does not agree with men and women; has occurred is not the correct verb tense.
each为什么不能指men and women？发生在过去影响一直持续到现在，为什么不能用完成时？

alzn2765

E的时态使用不当。when引导的时间状语从句表示伴随主句一同发生的一件事。比如D选项中divorce occurred 和 they were children是同时发生的。
如果先用each was a child，再用divorce has occurred，那么这两个动作就有时间上的先后顺序了。was a child在前，divorce has occurred在后，逻辑上似乎不对。
你举的例子中从句是条件状语从句，一般都是先满足某个条件（发生一件事），之后主句的动作才发生。你看看例子中是不是条件状语从句先“Trim”，之后tourists才来看？

udsifhi

alzn2765 发表于 2015-5-30 18:24
你举的例子是proposal has been made, 完成时的动词是make，跟to trim有什么关系？                ...

最后，once the animals' horns have been trimmed

alzn2765

udsifhi 发表于 2015-5-25 13:17
现在完成时这个句子就绝对不能用吗？随便举一个OG的正确句子Aproposal has been made to trim the horns fr ...

你举的例子是proposal has been made, 完成时的动词是make，跟to trim有什么关系？               

udsifhi

现在完成时这个句子就绝对不能用吗？随便举一个OG的正确句子Aproposal has been made to trim the horns from rhinoceroses to discourage poachers; the question iswhether tourists will continue to visit game parks to see rhinoceroses once the animals' horns have been trimmed. 总不是表示一直在trim吧
as表示当...的时候也有正确句子的例子，而且这句后面明明是个从句怎么可能歧义成occurred as something。不过看前人讨论as前面好像最好是延续性的动词不能是occur这种瞬间动词，但是OG上专门把关于as的这个错误的解析删掉了，大概说明这现在也不是不能接受的错误

接着求助

ukyo2003

E的问题
1、has occurred表示现在还在occur，时态错误
2、as在这里有歧义，表示a divorce that occurred as something；或者as可以表示因为；所以不如when
3、each指代不明，each什么？