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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
句子主干 Examples include brain growth…and an increase in neurons…
If you say \"when + PAST PARTICIPLE\", then this automatically applies to the SUBJECT of the clause to which it\'s attached.
，即主语examples，而并不是语义上的mice，所以AD错误
D的they指代也错了，Ron原话：
"they" is totally wrong in (d). it would automatically refer to "neurons", since "canaries' " is possessive and therefore ineligible to be the referent.
D的they只能指代Neurons，但是Neurons不会learn new sons, Canaries才会，所以D错
examples包括了（ABC都不行，不能是大脑或者老鼠）。看DE，placed的主语应该是老鼠被放置，D是examples被placed，错误。所以选E
include A and B
D 错在they 指代错误，应该指代动物，但指代成了动物的神经元
they指代canaries，when canaries learn new song的神经元增长，没有不对
但也确实可以指代神经元s，存在指代不清的问题
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include A and B
D 错在they 无指代
考察parallel
句子主干 Examples include brain growth…and an increase in neurons…
If you say \"when + PAST PARTICIPLE\", then this automatically applies to the SUBJECT of the clause to which it\'s attached.
，即主语examples，而并不是语义上的mice，所以AD错误
D的they指代也错了，Ron原话：
"they" is totally wrong in (d). it would automatically refer to "neurons", since "canaries' " is possessive and therefore ineligible to be the referent.
neurogenesis：the growth and development of nervous tissue.
故后面的主语应该是growth，而不是mice或者brain
D选项when placed in a stimulating environment的主语是brain growth，错误
且D后面they指代不明
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neurogenesis, the production of new brain cells=神经发生，脑细胞形成的过程，不是脑细胞的分泌物！所以要用growth and increase
or前后，mice和canaries的情况应该是平行的
neurogenesis的例子不应该Include是动物（mice等）或brain，应该是一个过程，因此不优选ABC
BC、They中途换了指代对象，WRONG
D、when placed中间省略的只能是主句主语，即examples，在这里肯定不对（AD）；而且所有格canaries‘不能用They代指（CD）
or前后，mice和canaries的情况应该是平行的
neurogenesis的例子不应该Include是动物（mice等）或brain，应该是一个过程，因此不优选ABC
BC、They中途换了指代对象，WRONG
D、when placed中间省略的只能是主句主语，即examples，在这里肯定不对（AD）；而且所有格canaries‘不能用They代指（CD）
Examples include brain growing in mice when placed ... place的主语是examples不是mice!
"examples of neurogenesis include" - so the examples should lead off with whatever the actual thing is that indicated neurogenesis. The mice aren't the example - the example is the brain growth. That eliminates B and C. A also breaks parallelism.
And the other thing wrong with A, B, C and D is "when placed in a stimulating environment" - it sounds like they are referring only to the time that the mice are in the stimulating environment - but the brain growth is permanent. It doesn't shrink back down once the mice are no longer in the stimulating environment. Ditto for the increase in neurons in the canaries.
CHOICE E：“the brain growth in mice" ---"an increase in neurons in canaries" 平行，，找核心词 “growth” --- "increase"
canary金絲雀
If you say \"when + PAST PARTICIPLE\", then this automatically applies to the SUBJECT of the clause to which it\'s attached.
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.
this strikes choice (d), since the SUBJECT is "recently documented examples", not "mice" as required.
if you say "when + PAST PARTICIPLE", then this automatically applies to the SUBJECT of the clause to which it's attached.
if i say
iron accumulates rust when submerged in water
then it's the iron, not the rust, that's submerged in water.
D : "when placed in a stimulating environment" - it sounds like they are referring only to the time that the mice are in the stimulating environment - but the brain growth is permanent. It doesn't shrink back down once the mice are no longer in the stimulating environment. They 指代有误 canaries' 是所有格无法被they 指代
D increase in canaries' neurons 表达有歧义,应使用 increase in neurons in canaries " GMAT avoids the plural possessive answer choice or choices"
if you say "when + PAST PARTICIPLE", then this automatically applies to the SUBJECT of the clause to which it's attached.
Moreover, neurons cannot learn!
mice是复数
D选项 placed的主语是examples❌