以下澳际留学为正在准备GMAT考试的同学们整理了gmat机经，2011年GMAT机经，以下2011年6月gmat阅读机经，共59篇，2011年6月3日至2011年6月28日。澳际留学祝大家GMAT考试顺利！

2.2.3 GWD27 q3-q6

BY ten0708

GWD-27-Q3-Q6 鸟为什么会飞的两种理论

Two opposing scenarios, 两种解释鸟飞的假设：树栖和疾走。

the “arboreal” hypothesis and

the “cursorial” hypothesis, have

Line traditionally been put forward con-

(5) cerning the origins of bird flight.

The “arboreal” hypothesis holds 树栖论说鸟祖先爬上树滑行下来，随

that bird ancestors began to fly 着羽毛越来越大，最终飞了起来。

by climbing frees and gliding

down from branches with the

(10) help of incipient feathers: the

height of trees provides a good

starting place for launching flight,

especially through gliding. As

feathers became larger over time,

(15) flapping flight evolved and birds

finally became fully air-borne.

This hypothesis makes intuitive 树栖论的问题：始祖鸟和M恐龙没有

Sense, but certain aspects are 明显的栖树适应性，如合适的脚。

Troubling. Archaeopteryx (the

(20) earliest known bird) and its

maniraptoran dinosaur cousins

have no obviously arboreal

adaptations, such as feet fully

adapted for perching. Perhaps 没分析显示始祖鸟曾用前肢爬树和飞，

(25) some of them could climb trees,

but no convincing analysis has

demonstrated how Archaeopteryx

would have both climbed and

flown with its forelimbs, and there

(30) were no plants taller than a few 始祖鸟化石发现的地方也没有发现高

meters in the environments where 树。

Archaeopteryx fossils have been

found. Even if the animals could 即使它会爬树也不表明会滑翔。

climb trees, this ability is not

(35) synonymous with gliding ability.

(Many small animals, and even

some goats and kangaroos,

are capable of climbing trees

but are not gliders.) Besides,

(40) Archaeopteryx shows no obvi-

ous features of gliders, such as 它没明显的滑翔特征。

a broad membrane connecting

forelimbs and hind limbs.

The “cursorial”(running)

(45) hypothesis holds that small 疾走论认为鸟为了躲避猎食者，奔跑

dinosaurs ran along the ground 并张开双臂平行

and stretched out their arms for

balance as they leaped into the

air after insect prey or, perhaps,

(50) to avoid predators. Even rudi- 前肢的原始特征能帮助身体稍微升高

mentary feathers on forelimbs

could have expanded the arm’s

surface area to enhance lift

slightly. Larger feathers could 然后鸟慢慢就飞起来了。

(55) have increased lift incrementally,

until sustained flight was gradu-

ally achieved. Of course, a leap

into the air does not provide the

acceleration produced by drop-

(60) ping out of a tree; an animal

would have to run quite fast

to take off. Still, some small

terrestrial animals can achieve

high speeds. The cursorial

(65) hypothesis is strengthened by

the fact that the immediate the- 兽脚亚目恐龙祖先拥有各种疾走的

ropod dinosaur ancestors of 特点。

birds were terrestrial, and they

had the traits needed for high

(70) lift off speeds: they were small,

agile, lightly built, long-legged, 另外，

and good runners. And because 它们用两足走，双臂有空用来拍打。

they were bipedal, their arms

were free to evolve flapping flight,

(75) which cannot be said for other

reptiles of their time.

---------------------------------------------------------

Q 3:

The primary purpose of the passage is to

A. present counterevidence to two hypotheses concerning the origins of bird flight

B. propose and alternative to two hypotheses concerning the origins of bird flight

correct certain misconceptions about hypotheses concerning the origins of bird flight

C. (missing)

D. rute a challenge to a hypothesis concerning the origins of bird flight

E. evaluate competing hypotheses concerning the origins of bird flight

---------------------------------------------------

Q 4:

The passage presents which of the following facts as evidence that tends to undermine the arboreal hypothesis?

A. Feathers tend to become larger over time

B. Flapping flight is thought to have evolved gradually over time

C. Many small animals are capable of climbing trees.

D. Plants in Archaeopteryx’s known habitats were relatively small

E. Leaping into the air does not provide as much acceleration as gliding out of a tree

------------------------------------------------

Q 5:

Which of the following is included in the discussion of the cursorial hypothesis but not in the discussion of the arboreal hypothesis?

A. A discussion of some of the features of Archaeopteryx

B. A description of the environment known to have been inhabited by bird ancestors

C. A possible reason why bird ancestors might have been engaging in activities that eventually evolved into flight

D. A description of the obvious features of animals with gliding ability

E. An estimate of the amount of time it took for bird ancestors to evolve the kind of flapping flight that allowed them to become completely airborne

-------------------------------------------------

Q 6:

The passage suggests which of the following regarding the climbing ability of Archaeopteryx?

A. Its ability to climb trees was likely hindered by the presence of incipient feathers on its forelimbs.

B. It was probably better at climbing trees than were its maniraptoran dinosaur cousins.

C. It had certain physical adaptations that suggest it was skilled at climbing trees.

D. Scientists have recently discovered fossil evidence suggesting it could not climb trees.

E. Scientists are uncertain whether it was capable of climbing trees

2.2.4 伽利略水泵

V1 by 千堂月莎 710

有问到 主旨，备选答案记得有 A-说明伽利略在发现某问题里的作用 B-描述 a series of scientists 不断找寻某答案的过程（我选的这个）

C-说明两种实质相同的，对某现象的解释/推论方法(应该是一对一错，不是实质相同吧)

还问了以下哪些因素与水可以上升的高度无关 选项包括什么 水管的直径 和什么什么的

V2 by michelleyiyan

再就是伽利略关于水能在pump里面通过多高的认识，后来说伽利略的认识是错误的，然后提出了另外一个人的观点

V3 by 小右twister 700+

关于气压的理论，伽利略合理接受力亚里士多德的部分理论，却在further research中astray了；然后另一个人discover了正确的理论

有一个主题题，一个小列举的提问（影响。。。的factors有哪些。。。关键词我给忘了。。。）

V4 by hhmia

还有一篇伽利略的实验那篇，问哪个不影响实验结果还是什么的，选项有weight of water, pressure of air, width of the pipe, height of the water, 还有一个不记得了

还有道题第一段有几行字highlight,大概是说伽利略学过一个A什么的人的一个discovery，问这句话有什么用，我选的是伽利略如何被mislead，不过应该错了

V5 by sweettrainbow 750

这篇是我的第一段，还蛮容易的

貌似全文只有一段，不过我帮大家分一下层次

第一层：有个现象，就是水在一根真空管子里面可以到34feet高，不过一旦超过就会break down

第二层：虽然伽利略familiar with亚里士多德对这个提出来的论点：dislike 真空，但是伽利略不知道怎么解释为什么dislike，然后他就假设可能是因为……（和一些东西做类比）但其实这个类比也是不对的。

第三层：伽利略虽然知道air有weight，但是没有考虑到。另一个人B. Baliani提出了这个观点

题目：

1. 主旨: 选的答案好像是几个人提出的不同观点（另一个选项是contrast两个人的观点，不过觉得伽利略和B那个人没有contrast，然后至少要顾忌下亚里士多德兄弟吧，所以没选这个）

2. 在这个试验中，什么不会影响XX：

A. weight of liquid

B. weight of air

C. height of liquid

D. width of the well

E. 忘了…… 不过不重要，因为答案选D

3. Highlight亚里士多德那段，问作用：狗主选的是（认为他误导了伽利略，导致伽利略从dislike 真空这个方面考虑，没有考虑到空气重量，这题非常不确定）

V6 by qianchangnan730

1、问哪个选项不是造成pump现象的原因还是决定液体能升到多少米，里面有weight of liquid, weight of air,啥的，我选的是井的宽度，这个文章确实没有提

2、文章主旨，选择两个人对现象的理解

3、有一段高亮，问目的，其实内容说得是伽利略对这个东西的理解正确的一部分，选的就是这个

背景知识

阅读材料：感谢xibao大人！ gmat机经,2011年6月gmat阅读机经(至6.28)(二十六)gmat机经,2011年6月gmat阅读机经(至6.28)(二十六)gmat机经,2011年6月gmat阅读机经(至6.28)(二十六)gmat机经,2011年6月gmat阅读机经(至6.28)(二十六)gmat机经,2011年6月gmat阅读机经(至6.28)(二十六)gmat机经,2011年6月gmat阅读机经(至6.28)(二十六)gmat机经,2011年6月gmat阅读机经(至6.28)(二十六)gmat机经,2011年6月gmat阅读机经(至6.28)(二十六)

以下澳际留学为正在准备GMAT考试的同学们整理了gmat机经，2011年GMAT机经，以下2011年6月gmat阅读机经，共59篇，2011年6月3日至2011年6月28日。澳际留学祝大家GMAT考试顺利！

2.2.3 GWD27 q3-q6

BY ten0708

GWD-27-Q3-Q6 鸟为什么会飞的两种理论

Two opposing scenarios, 两种解释鸟飞的假设：树栖和疾走。

the “arboreal” hypothesis and

the “cursorial” hypothesis, have

Line traditionally been put forward con-

(5) cerning the origins of bird flight.

The “arboreal” hypothesis holds 树栖论说鸟祖先爬上树滑行下来，随

that bird ancestors began to fly 着羽毛越来越大，最终飞了起来。

by climbing frees and gliding

down from branches with the

(10) help of incipient feathers: the

height of trees provides a good

starting place for launching flight,

especially through gliding. As

feathers became larger over time,

(15) flapping flight evolved and birds

finally became fully air-borne.

This hypothesis makes intuitive 树栖论的问题：始祖鸟和M恐龙没有

Sense, but certain aspects are 明显的栖树适应性，如合适的脚。

Troubling. Archaeopteryx (the

(20) earliest known bird) and its

maniraptoran dinosaur cousins

have no obviously arboreal

adaptations, such as feet fully

adapted for perching. Perhaps 没分析显示始祖鸟曾用前肢爬树和飞， 上12345678下

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