2003-1-15

snow_mountain

15. Which of the following birds are mentioned as those that build nests that include unusual objects?

(A) Ravens

(B) Ospreys

(C) Crows

(D) Sparrowhawks

答案是C.

鸟儿们的行径以用黄色标出.

Although nest-building is an instinctive ability, there is considerable adaptability in both site selection and use of materials, especially with those species which build quite

elaborate constructions. Furthermore, some element of learning is often evident since younger birds do not build as well as their practiced elders. Young ravens, for example,

first attempt to build with sticks of quite unsuitable size, while a jackdaw's first nest includes virtually any movable object. The novelist John Steinbeck recorded the contents of a young osprey nest built in his garden, which included three shirts, a bath towel, and one arrow.

Birds also display remarkable behavior in collecting building materials. Crows have been seen to tear off stout green twigs, and sparrowhawks will dive purposefully onto a branch until it snaps and then hang upside down to break it off.

我选了B.  我的想法是不关Osprey是否是因为没经验, 捡那些东东终归是怪的.

至于crow, 捡嫩的树枝, 那好歹也是树枝呀?  不懂

Taurus

是B.

snow_mountain

谢啦.

不过MM这个签名档~~~~~~~~~~~倒

还是喜欢你以前这个头衔.  很幸福的感觉

enjoylife517

这题有点难，讨论一下看：

A、B是在一段，描述 do not build as well as their practiced elders，而且A是指大小，还有一个指movable，B是指的东西可能我们看来是不寻常的，但同样放在一段，感觉不是讲用奇怪的东西。

关于CD，为什么不同，也不是很懂，但觉得他们才属于那个unusual objects。

Taurus

以下是引用bryony在2004-7-15 12:26:00的发言：

谢啦.

不过MM这个签名档~~~~~~~~~~~倒

还是喜欢你以前这个头衔.  很幸福的感觉

Yay~!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

谢谢谢谢谢谢谢谢谢谢谢谢

Taurus

是这样的,  这里的unusual objects 是指非平常意义的鸟类的筑巢材料.  那么我们平常意义的材料就是树枝什么之类的东东.

我们来看看文中提到的鸟儿们都用了什么筑巢:

Young ravens---sticks of quite unsuitable size   这里尽管是规格不大合适, 但始终还是stick, 木棒棒,  不出大格.

jackdaw---virtually any movable object.   哇,  任何可移动的物体.  所以这个属于unusual objects.  不过选项里没有它.

osprey --- three shirts, a bath towel, and one arrow.   哇!!!  这么丰富,  当然是unusual objects啦.  最和树枝, 木棒接近的也就是那个arrow.  其他两样不必说了.

Crow---stout green twigs, 绿芽嫩枝,  没问题,  是我们能够接受的内容.

sparrowhawks --- branch  树枝, 谢天谢地,  太符合常规了.

哈哈,  综上所述,  唯有B才是正确答案.

enjoylife517

看来不用看那么复杂的说。。

谢谢T咪。。

Taurus

汗..   怎么被我画的那么花??

本来想把背景都调成无色的..  结果..  

汗..  对不住..

Taurus

以下是引用enjoylife517在2004-7-15 12:55:00的发言：

看来不用看那么复杂的说。。

谢谢T咪。。

不客气不客气..

enjoylife517

呵呵，T咪解释的真详细。。