英语六级阅读长难句结构分析

英语六级阅读长难句构造分析 　1. Unlike most of the world's volcanoes, they are not always found at the boundaries

英语六级阅读长难句构造分析 1. Unlike most of the world's volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth's surface; on the contrary, many of them lie deep in the interior of aplate. [参考译文] 跟世界上的大多数火山不同的是，它们(热点)并不 总是在由构成地球 外表宏大漂流板块之间的边界上出现；相反，它 们中有许多位于一个板 块较纵深的内部。 2. The relative motion of the plates carrying these continents has been constructed in detail, but the motion of the plates with respect to another cannot readily be translated into motion with respect to the earth's interior. [参考译文] 携带这些大陆板块的相对运动已经能够被详细地表 述出来，但是这些板 块相对于另一些板块的运动还不能轻易地解释 为它们相对于地球内部 的运动。 3. As the dome grows, it develops seed fissures (cracks); in at least afew cases the continentmay break entirely along some of these fissures, so that the hot spot initiates the formation of anew ocean. [参考译文] 暂缺 4. While warnings are often appropriate and necessary--the dangers of drug interactions, for example--and many are required by state or federal regulations, it isn't clear that they actually protect the