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 bio-technology(生物技術(shù)).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(細胞) 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(器官).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.
【小題1】According to the passage,human death is now mainly caused by _______.

A．diseases and agingB．a(chǎn)ccidents and war
C．a(chǎn)ccidents and agingD．heart disease and war
【小題2】In the author’s opinion,today’s most important advance in technology lies in _______.
A．medicineB．the Internet
C．brain cellsD．human organs
【小題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
【小題4】We can learn from the passage that _______.
A．human life will not last more than 120 years in the future
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


【小題1】A
【小題2】A
【小題3】D
【小題4】C

解析【小題1】這是一道細節(jié)題。根據(jù)第一段“Today’s leading killers,such as heart disease,cancer,and aging itself,will become distant memories.”可知導致人類死亡的主要原因是疾病和衰老。
【小題2】這是一道推斷題。根據(jù)第二段“But the change in medicine can be the real technological event of our times.”可以推斷出醫(yī)藥的改變是我們這個時代發(fā)展最大的技術(shù)。
【小題3】這是一道推斷題。根據(jù)第二段“But the upper limits will be broken by new medicine...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.”可知醫(yī)藥將能夠修復人的器官使人活得更長。
【小題4】這是一道推斷題。根據(jù)最后一段“but many technical problems still must be cleared up on the way to this wonderful future.”可知還有很多技術(shù)問題需要解決,才能實現(xiàn)(延長人類生命的目的)。

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