[解析]
(1)B.细节理解题。根据第二段的Astronomers know it's there even though it's nowhere to be seen,because when they measure the stars and other regular matter in galaxies,they find that there is not nearly enough gravity to hold them together. (天文学家知道它就在那里,尽管它在哪里都看不见,因为当他们测量星系中的恒星和其他规则物质时,他们发现没有足够的重力将它们连在一起)可知,暗物质是看不见的,并且很难发现。故选B。
(2)B.段落大意题。根据第四段The idea is that a mile of dirt and rock,a giant tank,a second tank and the purest titanium in the world will block nearly all the cosmic rays and particles (粒子) around us every day.But dark matter particles,scientists think,can avoid all those obstacles.They hope one will fly into the liquid xenon (疝气) in the inner tank and smash into a xenon nucleus (原子核),revealing its existence in a flash of light seen by a device called "the time projection chamber."(他们的想法是用一英里的泥土和岩石、一个巨大的水箱、第二个水箱和世界上最纯净的钛材料来阻挡我们周围每天几乎所有的宇宙射线和粒子。但科学家们认为,暗物质粒子可以避开所有这些障碍。他们希望有一架飞机能飞进内槽中的液态氙中,撞进氙核中,通过被称为"时间投射室"的设备看到的闪光,揭示出它的存在)可知,本段主要介绍了科学家们的研究是如何设计的。故选B。
(3)C.细节理解题。根据第五段的So far the device has found…nothing.(到目前为止,该装置没有发现任何东西)可知,到目前为止,该实验什么也没有发现,即没有任何结果。故选C。
(4)D.推理判断题。根据倒数第二段中Kevin Lesko所说的You don't go into rare search physics without some hope of finding something.(如果没有找到什么东西的希望,你就不能进入稀有物理搜索领域)可知,Kevin Lesko认为如果我们有希望,总会有所发现。由此推知,他会同意"Every cloud has a silver lining.(黑暗中总有一线光明)"这个说法。故选D。