比较as...as题和v-ing

marjoriee

还有一道：

To meet the rising marketing demand for fish and seafood, suppliers are growing fish twice as fast as their natural growth rate, cutting their feed allotment by nearly half and raising them on special diets.

A. their natural growth rate, cutting their feed allotment

B. their natural growth rate, their feed allotment cut

C. growing them naturally, cutting their feed allotment

D. they grow naturally, cutting their feed allotment

E. they grow naturally, with their feed allotment cut

答案是D， 求解，cutting在这里应该做的是什么哇？？？
按照原则应该是修饰they grow naturally ，但是自然条件下的生长还要cutting their feed allotment？？
肿么办？？？！！！！
路过大神大姐大哥大弟，求解答哇~~~~~

boalgmat

这里是 V+ing修饰 主系表的用法  V+ing在这里修饰整个句子

marjoriee

boalgmat 发表于 2014-4-24 20:42
这里是 V+ing修饰 主系表的用法  V+ing在这里修饰整个句子

。。。。。。应该是主谓宾吧

boalgmat

suppliers are growing fish twice as fast as their natural growth rate,  修饰主系表时 要修饰整个句子       I ate an apple 主谓宾  I am a boy 主系表

marjoriee

boalgmat 发表于 2014-4-24 22:16
suppliers are growing fish twice as fast as their natural growth rate,  修饰主系表时 要修饰整个句子  ...

are是助动词，这是现在进行时态

boalgmat

marjoriee 发表于 2014-4-25 03:14
are是助动词，这是现在进行时态

我觉得 还是要把 主系表 从 主谓宾中分出来   it is a car 是主系表 it has a car 主谓宾 因为有些语法点是跟主系表有关系的

marjoriee

boalgmat 发表于 2014-4-26 22:24
我觉得 还是要把 主系表 从 主谓宾中分出来   it is a car 是主系表 it has a car 主谓宾 因为有些语法点 ...

这真心不是主系表。。。。。你可以看看别的语法书

boalgmat

恩 谢啦

marjoriee

boalgmat 发表于 2014-4-27 01:04
恩 谢啦

不客气~~