7．Clean your ears，because airport security might soon be scanning them．According to a recent discovery，the shape of ears could provide a reliable new way of identifying people at airports．
Researchers discovered that ears of each person have a unique shape and they have created a system that can scan them．The ear scanning technique uses a technology called image ray transform that highlights all the tubular structures （結(jié)構(gòu)） of the ear and measures them．Professor Mark Nixon，a computer scientist who led the team from the University of Southampton，believes ear scanning could take place as passengers walk through security gates，for example，by placing cameras on either side to record an image of their ears．Comparing the results against a database of ear shapes，the new system could help airport security workers instantly identify passengers．
Nixon and his team tested 252 images of different ears and found the system was able to match each ear to a separate image held in its database with 99 percent accuracy．
Besides ear scanning，there have been other systems developed for identity recognition．
"With facial recognition，the systems are often confused by crows feet （魚尾紋） and other signs of ageing，"Nixon said．"Your ears，however，age very gracefully．They grow proportionally （按比例） and your lobe （耳垂） gets a bit larger，but otherwise your ears are fully formed from birth．"What's more，facial recognition software is often confused by changes in expression so people need to control their faces and in some cases even avoid wearing make-up．
An ear scan system would also offer a less invasive alternative to retina （視網(wǎng)膜） scanning，which requires passengers to stare at scanners from a close range．
Fingertip detection has long been the most effective way of identifying someone．Nixon expects there to be a combination of different techniques that can be used at the same time to identify a person．"
56．The ear scanning system would help to find outC
A．where you come from                          
B．whether you are healthy
C．who you are                                                       
D．who shares your ear shape
57．The article does not sayD．
A．who developed the system                            
B．how the system works
C．where the system can be applied                
D．how long the system took to develop
58．Ear scanning would work better than facial recognition mainly becauseB
A．the ear scanning system is computerized 
B．ears change less with age than faces
C．facial expressions are often the same                 
D．facial appearances aren't unique
59．The underlined word"invasive"in the last but one paragraph possibly means"D"．
A．comfortable          
B．expensive                 
C．disappointing                 
D．a(chǎn)nnoying
60．Nixon has developed the ear scanning system while there's already the fingertip detection becauseC．
A．ear scanning can be used at airports                  
B．fingertip detection is not so convenient
C．he doesn't think one system is enough      
D．ear shapes are easier to read than fingerprints．

分析 文章講述了機場可以掃描耳朵來確認(rèn)客戶身份．因為耳朵有其唯一的結(jié)構(gòu)，且不太受年齡的影響．

解答 56-60 CDBDC
56題答案是C．細(xì)節(jié)理解題．根據(jù)According to a recent discovery，the shape of ears could provide a reliable new way of identifying people at airports．可知耳朵的形狀能辨別身份．故選C．
57題答案是D．歸納題．文章介紹了是Nixon開發(fā)了掃描耳朵的系統(tǒng)，系統(tǒng)的工作原理以及系統(tǒng)可以應(yīng)用于機場等，沒有提及開發(fā)系統(tǒng)花費多長時間，故選D．
58題答案是B．細(xì)節(jié)理解題．根據(jù)age very gracefully．They grow proportionally （按比例） and your lobe （耳垂） gets a bit larger，but otherwise your ears are fully formed from birth可知隨著年齡增長，耳朵沒有面部變化大．故選B．
59題答案是D．推理判斷題．根據(jù)which requires passengers to stare at scanners from a close range．讓客戶盯著掃描儀是很令人惱火的，即annoying．故選D．
60題答案是C．細(xì)節(jié)判斷題．根據(jù)Fingertip detection has long been the most effective way of identifying someone．Nixon expects there to be a combination of different techniques that can be used at the same time to identify a person他希望兩個系統(tǒng)結(jié)合使用．故選C．

點評 這是一篇說明文．題目涉及多道細(xì)節(jié)理解題，做題時需要結(jié)合原文和題目有針對性的找出相關(guān)語句進行仔細(xì)分析，結(jié)合選項選出正確答案；考查文章大意的題需要對文章大意有清晰的理解才能得出正確答案，切記胡亂猜測，一定要做到有理有據(jù)．

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