天山 3-7

dudegmat2006

E;

A-"the number of..." is singular, but "have been reduced" is plural--subject-verb disagreement;

B-parallelsim--"is reduced because..." is not parallel with "by pollution, and by various other threats...," plus, the present tense changes the meaning of the sentence, and "deep-sea and coastal netting is not controlled..." doesn't work, in replacing "uncontrolled deep-sea and coastal netting...;"

C-"numbers of" is always wrong and "because of" is better said as "by;"

D-present tense changes meaning, plus, awkward, passive construction.

mymengming

赞一个，先

终于知道怎么总结了，但是好像时间不多了，呜呜

小小亚述

呵呵，明显是E

B是个好大的陷阱－－语法形式看起来很对，但解释起来却毫无逻辑！专给我这种一看到"the number of ...+ 单数谓语"就两眼发亮，然后又没有耐性看完所有选项的人踩的。不要和我一样糊涂啊！！！

heshaohua666

faint,e or d

guoguo463

以下是引用audreylin100在2005-10-5 1:53:00的发言：

b 錯喔

因為, by pollution, and by various other threats to the fish’s habitat.

說明題目中會有三個由by開頭的平行對稱的介詞片語
即by A, by B ,and by C

如果是兩個對秤的用and連接,就應該是by pollution and by various other threats

AND 前不加逗號

剛好E 符合這個語法原則  故e對喔~~

yes! u r right!

云在青天水在瓶

对e选项我还有一个疑问：为什么要用完成时？并没有时间标志显示这里要用完成时。

从这一点看，d要好一些 （虽然 deep-sea and coastal netting that is not controlled 不太简洁）

yorien

the number of 的意思是什么什么的数字，所以ABC都错  无故改变时态   选E

kimiinlove

a不能用被动阿，只有d比较顺眼，但d不是最完美

tangzimo

以下是引用chenjm在2005-7-3 15:15:00的发言：

vote for B,the wild salmon's number 感觉不对，the特指wild salmon不对，没有理由特指

不是特指吧。the加单数名词不是可以用来指这一类的东西吗？

而且，虽然感觉不太好，但是也有类似the wild salmon's number 的说法啊……

longbai

从, by A, and by B的结构来看，前面一定还有一个by C.因此只有D和E选项具有 by，但D中的C部分没有E中的C部分更好的和后面的A，B平行