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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.

正确答案: B

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GWD-18-39

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楼主
发表于 2005-11-21 18:41:00 | 只看该作者

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.




  • is threatened both because their leaves are extremely tasty to a voracious opossum species and also because their

  • is threatened both because its leaves are extremely tasty to a voracious opossum species and because its

  • is threatened both because its leaves are extremely tasty to a voracious opossum species and also its

  • are threatened both because its leaves are extremely tasty to a voracious opossum species and its

  • 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?

    沙发
    发表于 2005-11-21 18:50:00 | 只看该作者
    A不对,both...and...要接等同的并列成分,A中also多了,其次 its指 mistletoe
    板凳
    发表于 2005-11-22 02:45:00 | 只看该作者

    原文已经说明了 a (rare New Zealand) species, 单数


    spe‧cies W3 plural species [countable]


    HB a group of animals or plants whose members are similar and can breed together to produce young animals or plants:
    Seven species of birds of prey have been observed.

    pandas and other endangered species (=ones that may soon no longer exist)
    地板
    发表于 2006-8-5 16:25:00 | 只看该作者
    A中两个their指代了单数的mistletoe错误了
    5#
    发表于 2006-10-20 03:15:00 | 只看该作者
    o ,原来是这样
    6#
    发表于 2006-11-11 21:54:00 | 只看该作者

    為什麼不能選C呢?

    我看不出來有沒有加上because會有很大差別..

     

    7#
    发表于 2008-5-2 18:20:00 | 只看该作者
    both, and,好 both,  and also中的also多余了
    8#
    发表于 2008-5-2 20:53:00 | 只看该作者

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

    9#
    发表于 2009-3-29 22:19:00 | 只看该作者
    up
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