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根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

仔细阅读课文《大自然的语言》2、3小节，回答

这两小节大自然告诉我们什么语言？

体积相同的铜、铁、铝三各小球，从同一高度的斜面滚下，在水平地面上撞击同一地点上放的同一木块，木块被撞击最远的是  （     ）

五一期间，有同学准备观看3D电影《泰坦尼克号》，观看3D电影时观众必须带上特殊的眼镜才能获得最佳观赏效果，这种眼镜是利用了光的什么原理？

阅读材料，回答问题。

“神十”发射成功。纵观我国航天事业的发展，从神一到神十，从无人到载人，从单人到多人，未来我们还将创建太空实验室，建立轨道空间站，一次次的突破和胜利都源于中国航天人不断的技术积累和创新，我们对宇宙空间的探索从未止步。

神十航天员首次太空授课成功。此次太空授课主要面向中小学生，使其了解失重条件下物体运动的特点、液体表面张力的作用，加深对质量、重量以及牛顿定律等基本物理概念的理解。在悬浮水珠实验中，王亚平轻挤水袋，在饮水管端口形成了一颗晶莹剔透的水珠，略微抖动水袋，水珠便悬浮在半空中。并风趣的说：“如果诗仙李白在天宫里生活，大概就写不出‘飞流直下三千尺’的名句了，因为，失重环境下水不可能飞流直下。”