揽瓜阁逻辑做题小分队 第22天

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Researchers studying the Greenland ice shelf were shocked to discover the presence of water, colored pink, two miles under the ice. They concluded that the pink color was probably due to microorganisms. They also concluded that the water was likely due to a drastic increase in global warming, an increase that has been occurring for just a few hundred years. But these conclusions may not be correct. It is just as possible that the water has accumulated under the ice for thousands of years, since the ice could have acted as a perfect insulator to trap heat emanating from the earth. Moreover, ____.

Which of the following would, if true, most logically complete the argument?

A. it would take much longer than a few hundred years for such an ecosystem of microorganisms to establish itself

B. recent evidence suggests that the rate of global warming is increasing rapidly as a result of human activities

C. some scientists believe that the increase in global warming in the last few hundred years has been even greater than is generally acknowledged

D. similar areas of pink water have been found under ice shelves in Antarctica

E. scientists have in recent years discovered microorganisms in locations where they had believed no life could survive

1.Scientists have long taken a buried/crater-shaped geological formation off the coast of Australia to be the remnant of a volcano, but recent analysis of one of its lowest (and therefore oldest) layers of sediments found evidence of a meteor impact: meteor fragments, glass droplets of the sort formed during meteor impacts, and various chemical elements that most likely came from outer space. This shows that the crater was instead probably formed by a meteor impact.

Which of the following would it be most useful to determine in order to evaluate the argument above?

A. Whether the uppermost layer of the sediment covering the formation contains elements that most likely came from a meteor.

B. Whether the remnants of a meteor impact could have been carried to the location by ocean currents.

C. Whether lava flows contain organic material from die-offs of plant and animal life

D. Whether the composition of meteor fragments around the globe is relatively uniform

E. Whether there was more global volcanic activity at the time of this feature's formation than there is now

参考答案：

AB

lfengi

1. A
Researchers studying the Greenland ice shelf were shocked to discover the presence of water, colored pink, two miles under the ice --> They concluded that the pink color was probably due to microorganisms -->They also concluded that the water was likely due to a drastic increase in global warming, an increase that has been occurring for just a few hundred years
It is just as possible that the water has accumulated under the ice for thousands of years, since the ice could have acted as a perfect insulator to trap heat emanating from the earth
2.
Evaluation: D
P: recent analysis of one of its lowest (and therefore oldest) layers of sediments found evidence of a meteor impact: meteor fragments, glass droplets of the sort formed during meteor impacts, and various chemical elements that most likely came from outer space
C: crater was instead probably formed by a meteor impact.

B -- 流星撞击的残余物是否会被洋流带到该地。
Yes， 残余被带到这里， 坑还是火山形成的。
No,  残余是由流行撞击而留下的， 坑也是流星撞击形成的。

大月亮cyn

Day22
1. [Strength C2 / Weaken C1] A
C1 pink color<---microorganisms; water <---increase in global warming, an increase that has been occurring for just a few hundred years.
C2 C! is wrong!
P1 ice = insulator, trap heat emanating from the earth ---> water |ice|+++ for thousands of years + P2: ? A
[思路: 一个是排除全球变暖这个原因，另一个排除几百年这个说法]
2. [Evaluation] A ❌ B
P A=remnant of a volcano X； evidence of a meteor impact: meteor fragments&glass droplets&various chemical elements from outer space
C the crater was instead probably formed by a meteor impact. 日常错题搬解析：
F:科学家一直认为A的一个火山又地形是火山遗迹。 但最近对最底下的一层沉 积物分析，发现流星撞击的证据:流星碎片，撞击形成的玻璃滴及可能来自外 太空的各种化学元素
C:说明该坑很可能是陨石撞击形成的 Q: 评价
思路:
该坑是否由陨石撞击形成的 作者假设:该坑物质(证据)是撞击留下的还是其他地方通过海水漂流过来的 方向: 考场上选残余物是否被洋流带到此地的选项
正确答案B: 流星撞击的残余物是否会被洋流带到该地。

Syvlia

AB

维多利亚每天都很饿

2-D组成成分是否相同和这个坑到底是火山遗迹还是流星撞击无关 无论成分是否一致 都没法告诉我们怎么区分到底是火山遗址还是流星撞击 但是B如果这个流星撞击的残余是洋流带过来的话 那还是有可能是火山遗址的 （有帮助我们判断是A还是B所以正确）

维多利亚每天都很饿

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