18.What will people die of 100years 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).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 diseases,cancer,and aging itself,will become distant memory.
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 120years 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 2050and 2100,medicine will have advanced to the point at which every 10years 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 conditional human existence,but many technical problems still must be cleared up on the way to this wonderful future.
25.According to the passage,human death is now mainly caused byA.
A.diseases and aging B.a(chǎn)ccidents and war
C.a(chǎn)ccidents and agingD.heart diseases and war
26.In the author's opinion,today's most important advance in technology lies inA.
A.medicine B.the internet C.brain cellsD.human organs
27.Humans may live longer in the future becauseA.
A.human organs can be repaired by new medicine.
B.human brains can decide the final death.
C.the basic materials of cells will last forever.
D.heart disease will be far away from us.
28.We can learn from the passage thatC.
A.human life will not last more than 120years in the future.
B.human can have a much longer life now.
C.we don't have the technical problems in helping humans live longer at all.
D.much needs to be done before humans can have a longer life.
分析 本文是一篇醫(yī)學科普題材的文章.介紹了在未來,由于醫(yī)學的高度發(fā)達,人類的壽命將會更加長久.
解答 25.A.細節(jié)理解題.由文章第一段Today's leading killers,such as heart diseases,cancer,and aging itself,will become distant memory可知現(xiàn)在人類死亡的主要原因是心臟病、癌癥和衰老;故選A.
26.A.細節(jié)理解題.由文章第二段第二句"But the change in medicine can be real technological event of our times."可知作者認為,當今技術最重要的發(fā)展是醫(yī)學;故選A.
27.A.推理判斷題.根據(jù)第二段倒數(shù)第二句"sometime between 2050 and 2100,…people will be able to take medicine to repair their organs"可知在2050~2100期間,每隔10年左右,人們可以通過吃藥來修整生病的或衰老的器官,這應是未來長生不老的原因,故選A.
28.C.主旨大意題.全文主要介紹了科技發(fā)展尤其是醫(yī)學的發(fā)展給人類帶來的巨大突破.但文章最后一段告訴人們要想實現(xiàn)這個目標仍有好長的路要走;故選C.
點評 考察學生的細節(jié)理解和推理判斷能力,做細節(jié)理解題時一定要找到文章中的原句,和題干進行比較,再做出正確的選擇.在做推理判斷題不要以個人的主觀想象代替文章的事實,要根據(jù)文章事實進行合乎邏輯的推理判斷.