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标题: GWD-18-39 [打印本页]

作者: plmnpler    时间: 2009-2-18 19:44     标题: GWD-18-39

Q39:

The survival of a rare New Zealand species of mistletoe that produces spectacular sprays of scarlet flowers is threatened both because their leaves are extremely tasty to a voracious opossum species and also because their flowers are pollinated by two species of birds whose populations are in decline.

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  1. is threatened both because their leaves are extremely tasty to a voracious opossum species and also because their
  2. is threatened both because its leaves are extremely tasty to a voracious opossum species and because its
  3. is threatened both because its leaves are extremely tasty to a voracious opossum species and also its
  4. are threatened both because its leaves are extremely tasty to a voracious opossum species and its
  5. are threatened both because their leaves are extremely tasty to a voracious opossum species and because their

答案是B,我选了A。

想请教species of mistleteo对应的代词应该是单数还是复数?


作者: susanyakis    时间: 2009-2-19 07:11

A不对,both...and...要接等同的并列成分,A中also多了,其次 its指 mistletoe
作者: aurora2008    时间: 2009-2-21 09:21

原文已经说明了 a (rare New Zealand) species, 单数
作者: dreamerp    时间: 2009-2-22 10:42

A中两个their指代了单数的mistletoe错误了
作者: plmnpler    时间: 2009-2-22 19:42

o ,原来是这样,谢谢 ~~~
作者: CrystalHW    时间: 2009-2-26 16:54

为什么不能选C呢?

我看不出來有沒有加上because会有很大差別..


作者: oliviading    时间: 2009-2-27 08:32

both, and,好 both,  and also中的also多余了
作者: shiningstar    时间: 2009-3-1 09:54

both because.... and because... 这样才平行,其他的楼上的都讲了


 


作者: babybluejia2    时间: 2009-11-20 11:11

明白了谢谢

 






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