prep15，快考了快考了

15. Recently documented examples of neurogenesis（神经形成）, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

 A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that

 A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that

B. mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they

C. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they

D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they

E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

先回答LZ的问题：

D后面的they指的是neurons，逻辑含义不对

E的that引起的是限制性定语从句，that指代先行词mici/canaries

我自己的一个疑问：

我总觉得when修饰不对，when总给我种感觉：老鼠被放到刺激性环境里 老鼠脑子就长，一拿出来就不长了。
总觉得when＋具体动作仅仅表示这个特定动作发生的时点。不是很确定我这种理解到底对不对。俺也快考了，问问大家～

不知道

MM加油！偶不是NN，也在努力备考中……，意见仅供参考。

D后面的they指的是neurons，逻辑含义不对

E的that引起的是限制性定语从句，that指代先行词mici/canaries

我自己的一个疑问：

我总觉得when修饰不对，when总给我种感觉：老鼠被放到刺激性环境里
  老鼠脑子就长，一拿出来就不长了。
总觉得when＋具体动作仅仅表示这个特定动作发生的时点。不是很确定我这种理解到底对不对。俺也快考了，问问大家～
                

 解释的真清楚!!

D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they

你对when 的理解, 没错. when 引导状语(从句), 不能单纯修饰、限定名词.因此, 如果接when..., the brain growth 需要是句 子,

 解释的真清楚!!

D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they

你对when 的理解, 没错. when 引导状语(从句), 不能单纯修饰、限定名词.因此, 如果接when..., the brain growth 需要是句 子,

LZ和YY 取得好成绩!

YY, 我一直有一种但心,担心你会......考800分!!!

我同意你这种意见。when本来就翻译成为当....的时候，是表示处于某种状态或事情发生的时间.....我的理解...

谢谢闹闹和YY,快考了,只能干掉一个算一个

还是要再多问一句闹闹：

“偶只记住一个原则，定语修饰成分只修饰紧邻的名词，除非有插入语或in year 2000类似的状语。”

那么that定语从句不能跳跃修饰了？在n1  in  n2  that中，是跟n1 of n2 that一样二者都可以修饰，还是只能修饰n2？

如果是现在分词doing呢？跟定语从句有没有不同？