[求助]大全4 (4/63) Q7

happylifelin

toquiny:

it is in the second para. "When a pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape along each side of the animal’s body."

hru

up

Yangsuolibyu

Yes, i agree with you on #5, that come from the second hypothesis

never3738

AGREE.

[此贴子已经被作者于2007-7-15 6:00:24编辑过]

raikey

以下是引用晶莹在2006-6-15 13:53:00的发言：

5.     It can be inferred from the passage that which of the following is characteristic of the pterosaurs?

(A) They were unable to fold their wings when not in use.

(B) They hung upside down from branches as bats do before flight.

(C) They flew in order to capture prey.

(D) They were an early stage in the evolution of the birds.

(E) They lived primarily in a forest-like habitat.

请问这一题是因为文章里面说“The second hypothesis seems unlikely because large pterosaurs could not have landed in trees without damaging their wings”么，还是应该定位在别的地方？

我认为E错是因为没有足够证据能证明翼龙生活在类似森林的地方,
但是为什么A对呢?文章说了When a pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape along each side of the animal’s body, 即翼龙走路时每个翅膀成"倒V字形",这种形态,与翼龙飞翔时翅膀的形态相比,难道不算是"折起来了"吗?

另外,文章有提到" The anatomy of their wings suggests that they did not evolve into the class of birds", 这还不足以说明"翼龙是鸟类的初始形态"吗?------D貌似正确.

lemony55

我做时也选了D,不过看此句-"The anatomy of their wings suggests that they did not evolve into the class of birds".我的理解是以翼龙根本不算是鸟类一众,更不用说是处于早期.但A我也不知道为什么对,求有效解!

nk_jade

我觉得文章已经说了科学教比较接受翼龙是属于reptile，而非鸟类。

所以鸟类的进化跟翼龙就没有关系啊~~

[此贴子已经被作者于2008-8-30 18:33:53编辑过]

ryanyong

    

我觉得文章已经说了科学教比较接受翼龙是属于reptile，而非鸟类。

所以鸟类的进化跟翼龙就没有关系啊~~

同意，文章第二段开头就点明了

Perhaps the least controversial
assertion about the pterosaurs is that they were reptiles.

"……最少争议……”

michzhou

i don't agree with wangyu73cn. the key for q7 is cliff in the last paragraph: cliff: A steep rock face, usually facing the sea.

gracezz

贴个第四题问一下：
3.    According to the passage, the skeleton of a pterosaur can be distinguished from that of a bird by the
(A) size of its wingspan
(B) presence of hollow spaces in its bones
(C) anatomic origin of its wing strut
(D) presence of hooklike projections on its hind feet
(E) location of the shoulder joint joining the wing to its body

选C，但是我选的E， 因为原文里说：小龙是第四个finger支持翅膀，鸟是第二个，因为这个我就选了E，现在明白了原文的定位在第二段第三句。但是也没有说是 anatomic origin 啊？这个origin是怎么来的呢？
请指教请指教~不胜感激！！