长难句结构分析

45. Defenders of science have also voiced their concerns at meetings such as "The Flight from Science and Reason" , held in New York City in 1995, and "Science in the Age of (Mis) information, which assembled last June near Buffalo.

　　[参考译文]科学卫士们在会议上也表述了他们的关注，比如1995年在纽约市举行的 "逃离科学与理性"会议，以及去年6 月在布法罗附近召开的"(错误)信息时代的科学"会议。

　　46. A survey of news stories in 1996 reveals that the antiscience tag has been attached to many other groups as well, from authorities who advocated the elimination of the last remaining stocks of smallpox virus to Republicans who advocated decreased funding for basic research.

　　[参考译文]一项关于1996年新闻报道的调查显示，反科学的标签还可以贴在许多其他团体身上，从提倡消灭最后存留的天花病毒的权威机构，到鼓吹削减基础研究经费的共和党人(都被贴上了反科学的标签)。

　　47. The 'true enemies of science, argues Paul Ehrllch of Stanford University, a pioneer of environmental studies, are those who question the evidence supporting global warming, the depletion of the ozone layer and other consequences of industrial growth.

　　[参考译文]环境研究的先驱、斯坦福大学的保罗•厄尔里西认为，科学真正的敌人是那些对支持全球变暖、臭氧层损耗以及工业发展的其他后果的证据提出置疑的人。

　　48. This development--and its strong implication for US politics and economy in years ahead--has enthroned the South as America's most densely populated region for the first time in the history of the nation's head counting.

　　[参考译文]这种发展--以及其对美国政治、经济在未来几年的潜在的强有力的影响一一使得南部在全国人口普查中有史以来首次成为美国人口最密集的地区。

　　49. Often they choose--and still are choosing--somewhat colder climates such as Oregon, Idaho and Alaska in order to escape smog crime and other plagues of urbanization in the Golden State.

　　[参考译文]他们常常选择--现在依然这样选择--居住在那些气候较为寒冷的地区， 比如俄勒冈、爱达荷，还有阿拉斯加，为的是逃避烟雾、犯罪，以及"金州"(加利福尼亚)城市化进程中的其他问题。

长难句结构分析

50. As a result, California's growth rate dropped during the 1970's, to 18.5 percent--little more than two thirds the 1960's growth figure and considerably below that of other Western states.

　　[参考译文]结果，加利福尼亚的人口增长率在20世纪70年代时下降到了18.5％一稍高于60年代增长率的三分之二，大大低于西部其他各州。

　　51. 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 a plate.

　　[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表面巨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。

　　52. 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。

　　53. As the dome grows, it develops seed fissures (cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hot spot initiates the formation of a new ocean.

　　54. 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 manufacturers and sellers from liability if a customer is injured.

　　[参考译文]尽管警告常常是适当而且必须的--比如对于药物相互作用的危险提出警告--许多警告还是按州或联邦政府规定要求给出的，然而(我们)并不清楚，如果顾客受到伤害时，这些警告是不是确实可以使得生产者和销售者豁免责任。