GWD-18-39

eSpirit · 发表于 2005-11-21 18:41:00

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？

laihong · 发表于 2005-11-21 18:50:00

A不对,both...and...要接等同的并列成分,A中also多了,其次 its指 mistletoe

joe11 · 发表于 2005-11-22 02:45:00

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)

babypigsxm · 发表于 2006-8-5 16:25:00

A中两个their指代了单数的mistletoe错误了

yangxuemei0111 · 发表于 2006-10-20 03:15:00

o ,原来是这样

claire_wen · 发表于 2006-11-11 21:54:00

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..

jimmyxuduosi · 发表于 2008-5-2 18:20:00

both, and,好 both, and also中的also多余了

xingxing23 · 发表于 2008-5-2 20:53:00

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

tonylin0824 · 发表于 2009-3-29 22:19:00

本贴相关题目 TN-16-SC-23 (GHJF)

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