标题: 老PREP—p1—CR1，第一题就看不懂 [打印本页] 作者: zjsxsj 时间: 2011-7-20 22:54 标题: 老PREP—p1—CR1，第一题就看不懂 Although fullerenes--spherical molecules made entirely of carbon--were first found in the laboratory, they have since been found in nature, formed in fissures of the rare mineral shungite. Since laboratory synthesis of fullerenes requires distinctive conditions of temperature and pressure, this discovery should give geologists a test case for evaluating hypotheses about the state of the Earth's crust at the time these naturally occurring fullerenes were formed.
Which of the following, if true, most seriously undermines the argument?
(A) Confirming that the shungite genuinely contained fullerenes took careful experimentation. (B) Some fullerenes have also been found on the remains of a small meteorite that collided with a spacecraft. (C) The mineral shungite itself contains large amounts of carbon, from which the fullerenes apparently formed. (D) The naturally occurring fullerenes are arranged in a previously unknown crystalline structure. (E) Shungite itself is formed only under distinctive conditions.作者: jetball 时间: 2011-11-12 18:06
这题我也看不明白。。。第一句话就不明白。。。作者: yeah529 时间: 2011-11-12 19:18
这题我也看不明白。。。第一句话就不明白。。。
-- by 会员 jetball (2011/11/12 18:06:31)
Although fullerenes--spherical molecules made entirely of carbon--were first found in the laboratory, they have since been found in nature, formed in fissures of the rare mineral shungite. Since laboratory synthesis of fullerenes requires distinctive conditions of temperature and pressure, this discovery should give geologists a test case for evaluating hypotheses about the state of the Earth's crust at the time these naturally occurring fullerenes were formed.
(A) Confirming that the shungite genuinely contained fullerenes took careful experimentation. 错误。证实S确实含有F的这个实验过程是仔细的。（大概是这个意思= =自己中文翻译也觉得绕口）无关选项。 (B) Some fullerenes have also been found on the remains of a small meteorite that collided with a spacecraft. 错误。说一些F也在一些碰撞后的流星上找到，其实也是无关选项。因为主要结论是说确定在自然界中形成的F的条件与实验室中的条件（即温度和压力）是一样的。KEY WORD是在形成条件。而不是问我们F是不是在地壳形成的，还是由流星碰撞产生。 (C) The mineral shungite itself contains large amounts of carbon, from which the fullerenes apparently formed. 无关选项。s含有大量碳元素与结论毫无关系 (D) The naturally occurring fullerenes are arranged in a previously unknown crystalline structure. 正确。说自然界中形成的F是以一种之前未知晶体结构出现的。说明和实验室中产生的F是完全不同的，既然完全不同，形成条件肯定也不可能一样。 (E) Shungite itself is formed only under distinctive conditions. S在特定条件下形成。也是无关选项。
open to discussion~~作者: bank11 时间: 2012-1-27 14:59
