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题库 / Prep2007E1-SC-64
Recently documented examples of neurogenesis, 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.
the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that
主语 【 examples of neurogenesis, the production of new brain cells 】最近有文献记载的神经发生的例子，即新脑细胞的产生
所以后面的核心词肯定不是mice，也不是brain，ABC不行
D, canaries neurons learn 逻辑不对
D省略不成立；题干同位语非必要不看。
考察：
代词；；并列；
代词指代不清可以排除bcd
主句讨论的是生长现象，而不是器官brain，应该是brain growth，大脑生长；且brain growing ing形式怪怪的，正在生长的大脑？？ing修饰有时候比较尴尬，注意选择
a, neurogenesis include brain, 逻辑不对
b,neurogenesis include mice .. or canaries 逻辑不对
c, neurogenesis inlcude mice's brain.., or canaries' neurons that increase when they learn.. → canaries neurons learn 逻辑不对
d, canaries neurons learn 逻辑不对
B. they错误指代，且出现了不同指代的两个they
C. brains不能被placed
D. 第二个they所有格无指代
D的结构没有E来的平行
when+现在or过去分词是伴随状语！不是就近修饰
bcd中最后一个they的指代都不明确，不知道是指代brains还是neurons
其中d选项when placed修饰了the brain growth，growth不能用place修饰，所以是错误的
答案选e
if i say
iron accumulates rust when submerged in water
then it\'s the iron, not the rust, that\'s submerged in water.
this strikes choice (d), since the SUBJECT is \"recently documented examples\", not \"mice\" as required.
E，限制性定语表示限制先行词的某个类别，mice that are placed in a stimulating environment，那些放在刺激性环境中的老鼠，canaries that learn new songs，那些学新歌的C，ok
D，in canaries' neurons when they learn new songs，they就近指代neurons而不是canaries
NG的解释是production of cells，BC主语错。
D中they指代不明。