Question

6．Darek Fidyka，a 38-year-old Bulgarian，had been paralysed （瘫痪的） from the chest down for four years after a knife attack．Scientists from Britain and Poland took cells from his nose，transplanted  （移植） them into his back and re-grew his spinal cord （脊髓）．Now he can walk and even drive a car．The doctors were delighted but said it was the first step in a long journey．
       The breakthrough came after 40 years of research by Professor Geoff Raisman，who found that cells had the possibility to repair damage to nasal （鼻腔的） nerves，the only part of the nervous system that constantly re-grows．"The idea was to take something from an area where the nervous system can repair itself，and does so throughout life，and put it into an area that doesn't repair itself，"Professor Raisman said．
       Polish doctors injected the nasal cells into Mr Fidyka's spinal cord above and below the injury and used some nerves from his ankle to form a bridge across the damaged tissue．The nasal cells appear to have caused the spinal nerves to repair themselves．
       Professor Raisman achieved this with rats in the late 1990s，but this is his greatest success．"I think the moment of discovery for me was Christmas in 1997 when I first saw a rat that couldn't control its hand put its hand out to me．That was an exciting moment，because I realised then that my belief that the nervous system could be repaired was true．"
       Doctors chose the easiest case for their first attempt-it might not work for others．But there is a real sense of hope that an idea once thought impossible has been reali sed．
       David Nicholls，who helped provide money for the breakthrough，said information about the breakthrough would be made available to researchers across the globe．
"What you've got to understand is that for three million paralysed people in the world today，the world looks a totally brighter place than it did yesterday，"he said．
28．Why did Professor Geoff Raisman choose cells from the nose？A
A．The nervous system in the nose can repair itself．
B．Cells in the nose can be easily transplanted．
C．Cells in the nose re-produce rapidly．
D．He just wanted to give it a try．
29．Why did the operation work for Darek Fidyka？D
A．The nasal cells re-produced and spread quickly．
B．The nerves from his ankle helped cure the injury．
C．The nervous system in the spinal cord can repair itself．
D．The nasal cells helped the spinal nerves to repair themselves．
30．What made Professor Geoff Raisman believe the nervous system can be repaired？D
A．His study on animals．
B．His operation on a paralysed patient．
C．His sudden thoughts about Christmas．
D．His unusual experience with a sick rat．
31．David Nicholls'words suggest thatB．
A．the world is becoming better and brighter
B．paralysed people have the hope of recovery
C．the report of the breakthrough will be published soon
D．researchers across the globe will carry out the operation．

Answer 1

分析 本文是一篇科教类阅读，属于说明文，主要讲述了科学家通过小白鼠的例子发现鼻腔的神经系统能自我修复且能移植到其他器官对受伤的器官进行修复，这种手术在医学上已经取得了成功．

解答 28．A 细节推理题．根据第二段Professor Geoff Raisman，who found that cells had the possibility to repair damage to nasal （鼻腔的） nerves，the only part of the nervous system that constantly re-grows．可知鼻腔的神经系统能自我修复，故选A．
29．D 细节理解题．根据The nasal cells appear to have caused the spinal nerves to repair themselves．可知，鼻腔的神经细胞能帮助脊髓神经细胞自我修复．
30．D 细节推理题．根据第四段Professor Raisman achieved this with rats in the late 1990s，but this is his greatest success．when I first saw a rat that couldn't control its hand put its hand out to me．That was an exciting moment，because I realized then that my belief that the nervous system could be repaired was true．"可知Raisman教授是通过对老鼠观察的经历有了这个发现的，故选D．
31．B 推理判断题．根据最后一段What you've got to understand is that for three million paralysed people in the world today，the world looks a totally brighter place than it did yesterday．可知David Nicholls认为这个发现给了世界上300多万患者治愈的希望，故选B．

点评 本文是一篇科教类阅读，题目涉及多道细节理解题，推理判断题．做题时学生应仔细阅读原文，把握文章主要内容，联系文章上下文内容并结合所给选项含义，从中选出正确答案，一定要做到有理有据，切忌胡乱猜测