问题
问答题
图腾崇拜
答案
参考答案：
解析：图腾崇拜产生于旧石器时代晚期，那时人类由于不能正确认识自然，于是将某种在经济上与自己有着密切关系的动物或植物当做自己的亲属，认为这些动物或植物和自己有着共同的血缘关系，或认为其氏族的全体成员均源于某种动物或植物，因而对这些动、植物加以崇拜。这种宗教崇拜即图腾崇拜。
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图腾崇拜
参考答案：
解析：图腾崇拜产生于旧石器时代晚期，那时人类由于不能正确认识自然，于是将某种在经济上与自己有着密切关系的动物或植物当做自己的亲属，认为这些动物或植物和自己有着共同的血缘关系，或认为其氏族的全体成员均源于某种动物或植物，因而对这些动、植物加以崇拜。这种宗教崇拜即图腾崇拜。
| The ocean bottom—a region nearly 2.5 times greater than the total land area of the Earth —is a vast frontier that even today is largely unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely inaccessible, hidden beneath waters averaging over 3,600 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earth’s surface, the deep-ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of outer space. Although researchers have taken samples of deep-ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundation’s Deep Sea Drilling Project (DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP’s drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean’s surface and drill in very deep waters, extracting samples of sediments and rock from the ocean floor. The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983. During this time, the vessel logged 600,000 kilometers and took almost 20,000 core samples of seabed sediments and rocks at 624 drilling sites around the world. The Glomar Challenger’s core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably look like millions of years in the future. Today, largely on the strength of evidence gathered during the Glomar Challenger’s voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth. The cores of sediment drilled by the Glomar Challenger have also yielded information critical to understanding the world’s past climates. Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land-based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change—information that may be used to predict future climates. |
The author mentions "outer space" underlined in Paragraph 1 because______.
A．the Earth’ s climate millions of years ago was similar to conditions in outer space
B．it is similar to the ocean floor in being alien to the human environment
C．rock formations in outer space are similar to those found on the ocean floor
D．techniques used by scientists to explore outer space were similar to those used in ocean exploration