Prep07 CR第一题，纠结B为什么不对呢？求牛人解答！

Hzhangxueke · 发表于 2012-5-4 17:18:13

Although fullerenes--sphericalmolecules made entirely of carbon--were first found in the laboratory, theyhave since been found in nature, formed in fissures of the rare mineralshungite. Since laboratory synthesis offullerenes requires distinctive conditions of temperature and pressure, thisdiscovery should give geologists a test case for evaluating hypotheses aboutthe state of the Earth's crust at the time these naturally occurring fullereneswere formed.

Which of the following, if true,most seriously undermines the argument?

(A) Confirming that the shungitegenuinely contained fullerenes took careful experimentation.

(B) Some fullerenes have also beenfound on the remains of a small meteorite that collided with aspacecraft.

(C) The mineral shungite itselfcontains large amounts of carbon, from which the fullerenes apparently formed.

(D) The naturally occurringfullerenes are arranged in a previously unknown crystalline structure.

(E) Shungite itself is formed onlyunder distinctive conditions.

D说自然中发现的晶体结构和实验室弄出来的不同，所以用实验室模拟方法制作出的 fullerenes不能用来讨论地球当时的环境，所以weaken没错

但是B说在meteorite也发现过，那么不就是说，条件有可能不是用来证明地壳状况也有可能是撞击状况的吗？

Hzhangxueke · 发表于 2012-5-4 17:25:30

自己顶一下，牛人们求解答啊！我马上要考试了。。。

DUKB24 · 发表于 2012-5-4 19:57:08

Focus on how the stimulus come to conclusion.
Premise：laboratory synthesis of fullerenes requiresdistinctive conditions of temperature and pressure

Conclusion：this discovery should givegeologists a test case for evaluating hypotheses aboutthe state of the Earth'scrust at the time these naturally occurring fullereneswere formed.

What doesthe author assume some unstated premise to allow this conclusion be drawn？（synthesis fullerenes is identicialto the natural fullernes）

The argumenthere is use the laboratory result to predict certain result on Earth.

The fullerenesthat exist other than Earth has nothing to do with the argument.

Also ，notice the background information：they

havesince been found in nature（So it is perfectly compatible to say that some fullerneshave been found in other places）

naoyixue · 发表于 2012-5-4 20:27:42

同意楼上的，因为有些也在那些和太空飞船碰撞的陨星里面存在，因为没有说其他任何信息，比如陨星里面的f存在不需要温度和压力（如果是这样，那么有weaken,而且由于some,所有小weaken),但是这里没有任何关于陨星里面f存在需要的特性，所以没有办法继续判断下去，所以不用B

Hzhangxueke · 发表于 2012-5-5 19:35:06

同意楼上的，因为有些也在那些和太空飞船碰撞的陨星里面存在，因为没有说其他任何信息，比如陨星里面的f存在不需要温度和压力（如果是这样，那么有weaken,而且由于some,所有小weaken),但是这里没有任何关于陨星里面f存在需要的特性，所以没有办法继续判断下去，所以不用B

-- by 会员 naoyixue (2012/5/4 20:27:42)

谢谢哦~~~

Hzhangxueke · 发表于 2012-5-5 19:35:21

Focus on how the stimulus come to conclusion.
Premise：laboratory synthesis of fullerenes requiresdistinctive conditions of temperature and pressure

Conclusion：this discovery should givegeologists a test case for evaluating hypotheses aboutthe state of the Earth'scrust at the time these naturally occurring fullereneswere formed.

What doesthe author assume some unstated premise to allow this conclusion be drawn？（synthesis fullerenes is identicialto the natural fullernes）

The argumenthere is use the laboratory result to predict certain result on Earth.

The fullerenesthat exist other than Earth has nothing to do with the argument.

Also ，notice the background information：they

havesince been found in nature（So it is perfectly compatible to say that some fullerneshave been found in other places）

-- by 会员 DUKB24 (2012/5/4 19:57:08)

谢谢哦

一只酵母君 · 发表于 2016-5-11 11:44:25

dingding!!

AnthonyMullin · 发表于 2016-12-10 17:39:18

感谢分享！

绿杨小庙 · 发表于 2018-7-30 17:45:52

DUKB24 发表于 2012-5-4 19:57
Focus on how the stimulus come to conclusion.Premise：laboratory synthesis of fullerenes requiresdis ...

Mark一下！

Prep07 CR第一题，纠结B为什么不对呢？求牛人解答！

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