求助OG12-21

qiaowin88637

21．Neuroscientists, having amassed a wealth of knowledge over the past twenty years about the brain and its development from birth to adulthood, are now drawing solid conclusions about how the human brain grows and how babies acquire language.

a. Neuroscientists, having amassed a wealth of knowledge over the past twenty years about the brain and its development from birth to adulthood, are

B. neuroscientists, having amassed a wealth of knowledge about the brain and its development from birth to adulthood over the past twenty years, and are

c. neuroscientists amassing a wealth of knowledge about the brain and its development from birth to adulthood over the past wenty years, and are

d. neuroscientists have amassed  a wealth of knowledge over the past twenty years about the brain and its development from birth to adulthood.


e. neuroscientists have amassed, over the past twenty years, a wealth of knowledge about the brain and its development from birth to adulthood.

答案是a

之前看到有参考说 D中，Now drawing…就进修饰adulthood， 请问关于就近修饰有什么规则么？本人菜鸟级，求教！~

xinxiangwei

ding ya ding ya~meiren lai ya~~~

wenyiwendy

ving 做定语和状语两种情况
1.ving置于句尾，如果主句SVO完整，且和主句的时态搭配合理，则做状语表伴随（动作&结果的伴随）
2.ving置于句尾，如果主句SVO完整，且和主句的时态搭配不合理（如D,E)，则做定语，就进修饰前面的名词，此题就是这种情况，drawing 修饰 adulthood

yorku

OG说的是D和E的时态不对。
然后and前后是完整句子，就排除了BC了。