It is exciting to imagine that the advance in technology may be changing the most basic condition of human existence, but many technical problems still must be cleared up on the way to this wonderful future.
52.According to the passage, human death is now mainly caused by ________.
A.diseases and aging
B.accidents and war
C.accidents and aging
D.heart disease and war
答案 A [细节理解题。由文章第一段最后一句得知,今天主要的杀手,如心脏病、癌症、年老将会成为遥远的记忆。]
53.In the author's opinion, today's most important advance in technology lies in
________.
A.medicine
B.the Internet
C.brain cells
D.human organ
答案 A [细节理解题。第二段前两句的意思是说“在讨论技术变化时,人们往往注意到的是网络。然而药学方面的变化可能是当今真正技术方面的大事件”,故选A项。]
54.Humans may live longer in the future because ________.
A.heart disease will be far away from us
B.human brains can decide the final death
C.the basic materials of cells will last forever
D.human organs can be repaired by new medicine
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