天山 3-7

In Scotland, the number of wild salmon have been reduced because of uncontrolled deepsea
and coastal netting, by pollution, and by various other threats to the fish’s habitat.
A. number of wild salmon have been reduced because of uncontrolled deep-sea and
coastal netting
B. number of wild salmon is reduced because deep-sea and coastal netting is not
controlled
C. numbers of wild salmon has been reduced because of uncontrolled deep-sea and
coastal netting
D. wild salmon’s numbers are reduced by deep-sea and coastal netting that is not
controlled
E. wild salmon’s numbers have been reduced by uncontrolled deep-sea and coastal
netting

MINE B

ANS E

WHY?

我怎么觉着A也读的通呀!

A和E有什么不同呢????

哦~如果把A中的have been 改成has been就对了,是吧!

这个是过去完成时的被动语态, 所以B不对

没见过numbers的形式来表示某某的数目,不知道是不是题目输入有误

这题真的很难选，无奈中我选了E，主要是考虑到未画线部分的by对称。

而这里的numbers一直让我难以理解，是不是除了“数量”外还有其他的意思？如果不是这个numbers这个选项就很完美。

I picked E because all others have some obvious faults.

A. have been reduced --> has been reduced.  The first part of the sentence is not parallel with the 2nd.

B. is not controlled --> are not controlled.  The first part of the sentence is not parallel with the 2nd.

C. has been reduced --> have been reduced.  The first part of the sentence is not parallel with the 2nd.

D. is not controlled --> are not controlled.  Awkward.

however, can we use "wild salmon’s numbers" ?