10."Iris scan (虹膜掃描),please,"the bank's computer voice tells you.You step up and the computer reads your eye,comparing it to the stored file it has of your iris.The images had better match-otherwise you won't be able to get your money.
Iris scanning and other technologies,such as fingerprint and voice scanning,have appeared in many science fiction movies in the past.Today,these advanced technologies are part of the real world.They are common at work,the bank,the airport,and your local prison.The iris scan,fingerprint scan,and voice scan are all examples of biometrics(生物測定學(xué)) a fast developing area of automatic personal identification technology.Basically,biometrics uses various ways to verify a persons identity,based on the individual's unique characteristics,includingfingerprints,voices,irises,body heat patterns,facial images,handprints,signatures and so on.
Biometrics identification systems have a number of advantages over password systems.The primary advantage is that an individual has to be physically present in order to be identified.Another important advantage is that there are no passwords to remember,forget,lose or steal.
The voice scan is the simplest and most affordable form of biometrics.It only requires a computer,a microphone and the correct software.The software records a subject's voice and then compares it to a stored voice sample for identification purposes.
For additional safety,fingerprint and handprint scans can also be employed.Fingerprint scans take the image of a fingerprint and compare it to a stored file of prints.Handprint scans identify the unique features of a hand.
Iris scans currently give the highest level of accuracy among all the available biometrics systems.Another technology,full facial scans,is currently in use at border crossings and airports.Facial scanning equipment can actually track and identify moving faces within a crowd.
The potential of biometrics is exciting and encouraging.With continued development,testing,and application,current technologies will become even more effective in the future.Soon,the days of password and car keys will be gone.Just don't leave home without your fingerprints!
29.The first paragraph serves as a(n).D
A.conclusion B.explanation C.comment D.example
30.The underlined word"verify"in Paragraph 2probably means"".B
A.change B.confirm C.develop D.protect
31.Which is the most accurate form of biometrics?A
A.The iris scan B.The fingerprint scan C.The voice scan D.The facial scan
32.What is the author's attitude towards the future of biometrics?C
A.He is uncertain about it.
B.He feels doubtful about it.
C.He feels hopeful about it.
D.He is worried about it.
分析 作者主要介紹了虹膜掃描和人的指紋識(shí)別、聲音識(shí)別、臉譜識(shí)別這些都是生物測定學(xué)的手段,可以更好的鑒定人的身份.
解答 29.D 細(xì)節(jié)題.根據(jù)文章內(nèi)容,"Iris scan (虹膜掃描),please,"the bank's computer voice tells you.You step up and the computer reads your eye,comparing it to the stored file it has of your iris.The images had better match-otherwise you won't be able to get your money.該部分介紹了去銀行取錢用電腦進(jìn)行虹膜掃描,這是現(xiàn)在對(duì)人的身份進(jìn)行生物測定.而虹膜掃描和人的指紋識(shí)別、聲音識(shí)別、臉譜識(shí)別這些都是生物測定學(xué)的手段,因此將虹膜掃描作為一個(gè)例子來引出話題,故選D
30.B 細(xì)節(jié)題.根據(jù)文章內(nèi)容,Basically,biometrics uses various ways to verify a persons identity,based on the individual's unique characteristics,includingfingerprints,voices,irises,body heat patterns,facial images,handprints,signatures and so on.通常情況,生物學(xué)可以用多種方式來測定人的身份,其中包括虹膜掃描、指紋識(shí)別、聲音識(shí)別、臉譜識(shí)別,結(jié)合選項(xiàng),故選B
31.A 細(xì)節(jié)題.根據(jù)文章內(nèi)容,Iris scans currently give the highest level of accuracy among all the available biometrics systems.虹膜掃描是生物測定里面精確率最高的一種方法了,結(jié)合選項(xiàng),故選A
32.C 主旨題.根據(jù)文章內(nèi)容.作者對(duì)各種生物測定都說明了其各自的好處,可以看出他對(duì)生物測定學(xué)的將來抱有很大的希望的.結(jié)合選項(xiàng),故選C
點(diǎn)評(píng) 本文是一個(gè)科教類閱讀,題目涉及多道細(xì)節(jié)理解題,做題時(shí)結(jié)合原文和題目有針對(duì)性的找出相關(guān)語句進(jìn)行仔細(xì)分析,結(jié)合選項(xiàng)選出正確答案.推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案,切忌胡亂猜測,一定要做到有理有據(jù).