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    What will people die of 100 years from now? If you think that is a simple question, you have not been paying attention to the revolution that is taking place in bio­technology. With the help of new medicine, the human body will last a very long time. Death will come mainly from accidents, murder and war. Today's leading killers, such as heart disease, cancer, and aging itself, will become distant memories.
    In discussion of technological changes, the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times. How long can humans live? Human brains were known to decide the final death. Cells are the basic units of all living things, and until recently, scientists were sure that the life of cells could not go much beyond 120 years because the basic materials of cells, such as those of brain cells, would not last forever. But the upper limits will be broken by new medicine. Sometime between 2050 and 2100, medicine will have advanced to the point at which every 10 years or so, people will be able to take medicine to repair their organs. The medicine, made up of the basic building materials of life, will build new brain cells, heart cells, and so on—in much the same way our bodies make new skin cells to take the place of old ones.
    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.
    小题1:According to the passage, human death is now mainly caused by ________.
    A．diseases and agingB．accidents and war
    C．accidents and agingD．heart disease and war
    小题2:In the author's opinion, today's most important advance in technology lies in ________.
    A．medicineB．the InternetC．brain cellsD．human organ
    小题3: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
    小题4:How long can humans live in the future according to the passage?
    A．Over 100 years.B．More than 120 years.
    C．About 150 years.D．The passage doesn't tell us.
    小题5:We can learn from the passage that ________.
    A．Cells aren’t the basic units of all living things any more
    B．humans have to take medicine to build new skin cells now
    C．much needs to be done before humans can have a longer life
    D．we have already solved the technical problems in building new cells

    小题1:A
    小题2:A
    小题3:D
    小题4:B
    小题5:C

    试题分析：文章大意：本文主要讲述了人类的生命由于生物技术的发展可以无限期延长的愿望有可能成为现实。
    小题1:A细节题。由文章第一段最后一句Today's leading killers, such as heart disease, cancer, and aging itself, will become distant memories.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。
    小题2:A 细节题。第二段前两句In discussion of technological changes, the Internet gets most of the attention these days. But the change in medicine can be the real technological event of our times.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。
    小题3:D判断题。由第二段的后半部分可知，在2050~2100期间，每隔10年左右，人们可以通过吃药来修整生病的或衰老的器官，这应是未来长生不老的原因。
    小题4:B概括题。阅读全文后得知，文章没有具体告诉我们人们将来能活多少年。
    小题5:C 推理题。由最后一段得知，想像一下将来技术的发展改变了人类最基本的生存条件，真是让人兴奋，但想达到美好的将来还有很多技术问题要澄清。
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