首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The average automatic teller machine (ATM)is not very smart.It will give money to anyone who has the right card and punches four
The average automatic teller machine (ATM)is not very smart.It will give money to anyone who has the right card and punches four
admin
2021-03-06
30
问题
The average automatic teller machine (ATM)is not very smart.It will give money to anyone who has the right card and punches four or five keys in the right order.Some analysts estimate that as many as 30% of ATM transactions worldwide are cases of theft.To increase security at cash machines, some banks have tried to make their ATMs a little smarter.A small camera on the machine looks directly into the eye of every customer.It scans one iris and compares the tiny patterns of ridges, dots, and other features to a code in its computer.If there is a match, the ATM will start counting out cash.If not, a message is automatically sent to the nearest police station.
Iris-scanning is one fast-growing form of biometric identification—determining who someone is by examining features of the body.One of the earliest biometric techniques was fingerprinting.The lines on fingertips are unique to each person, so not even identical twins have the same fingerprints.Fingerprinting has become famous as a way of finding out who committed a crime, but it very often fails.A careful criminal can wear gloves, avoid touching thing, or even alter his fingerprints by burning, cutting, or scraping them.In the search for a more reliable system, security experts have focused on the eye.
Like a fingerprint, every iris is, for all practical purposes, unique.Each person’ s right iris is even different from his or her left one.A low—cost digital camera, like the kind installed at ATM machines, can easily detect hundreds of different features in the iris.The chance of two irises having the same features is close to zero.Tests have shown that iris-scanners are very hard to fool.They can tell the difference between a real iris and a false one.They can see right through coloured contact lenses, eyeglasses, and even mirrored sunglasses.Although many criminals are willing to burn or cut their fingers in pursuit of the perfect crime, few would be willing or able to alter their irises.
To make iris—scanning work, a computerized database has to match certain iris features with certain people.This means that each ATM customer has to allow a bank to photograph his or her iris and keep that highly personal information in a computer.Some people have worried, however, that an increased use of iris-scanning will lead to a dangerous loss of privacy.By mounting iris-scan cameras in public places, governments could track a private citizen all day long without the person’ s knowledge.This would be a great advantage to the police, but it could also give corrupt officials a new way to control their opponents.The military’s development of tiny robots suggests that government iris-scanners could even invade private homes!
Questions 11—15Complete the summary with words from the passage, changing the form where necessary, with no more than three word for each blank.
ATM transactions are often cases of theft, where an unauthorized user takes【R1】__________.To decrease insecurity, some banks have installed iris-scanning machines at ATMs.These small cameras scan the user’ s iris, recording its features and 【R2】__________ them to a digital file.Every person has a 【R3】__________iris, making iris identification highly reliable.Earlier efforts at biometric identification often relied on fingerprints.However, fingerprints can easily be 【R4】__________ through cutting, burning or scraping.Iris scanners are so effective that they can even see through contact lenses and mirrored sunglasses.Use of iris scanners would provide great advantages to the police.However, others worry about a loss of 【R5】__________ .
【R4】
选项
答案
altered
解析
由关键词through cutting, burning or scraping定位至原文第二段最后一句“A careful criminal can wear gloves, avoid touching things,or even alter his fingerprints by burning, cutting or scraping them.”即“一个细心的罪犯可以戴上手套,避免接触东西,甚至可以通过燃烧、切割或刮擦来改变自己的指纹。”空格前面有fingerprints can easily be,可以判断所填词为动词,且为被动语态,故本空填altered。
转载请注明原文地址:https://kaotiyun.com/show/DsAK777K
本试题收录于:
C类竞赛(非英语专业本科)题库大学生英语竞赛(NECCS)分类
0
C类竞赛(非英语专业本科)
大学生英语竞赛(NECCS)
相关试题推荐
Peoplewearclothestoprotecttheirbodiesfromthecoldortheburningsun,frominsectbitesandinjuries,andfromtheunwel
Itisjustaboutimpossibletoimaginehowbigtheuniverseis.Allwecandoistodescribecertainthingsweknowaboutitand
Whichnumbershouldreplacethequestionmark?
Thewordorphrasethatyouusetoopenyouremailaccountmayprovideakeytoyourpersonalityaswellastoyour【D1】______,a
WhichofthefollowingtypeofpollutionisNOTmentionedintheconversation?
Whenitisdifficulttofindspacetobuildmorehousesandoffices,weautomaticallybuildupwards—webuildskyscrapers.Now,
I____youavaluablepresentforyourbirthday,butIwasshortofmoney.
Acensus-takercallsatahouse.Heasksthewomanlivingtheretheagesofherthreedaughters.Thewomansays,"Ifyoumultipl
Whenlookingforlove,peoplemaygotosomeextremelengths.Theymightgoonblinddatessetupbyfamilyandfriends.Theymi
WhenDavidistwiceasoldasheisnowhewillbefourtimesasoldashisdaughterJanewillbeinfiveyear’stime.Ifin1990
随机试题
某患儿生后诊断为法洛四联症,随年龄增长发绀越来越重,而心脏杂音越来越轻,如何解释这一现象
设a和b均为int型变量,且a=6、b=11、c=3,则能使值为3的表达式是()。
Itmightbeagoodideaifeducatorscouldmakeknowledgeaboutenvironmentalprotectionanimportantpartofthe_____schoolcu
浆汁,淀粉粒,糖多的药材,为利于干燥,产地加工时应
A公司系上市公司。2004年3月,A公司为了取得配股权,经公司董事会研究,决定采取虚增利润的形式骗取配股权。并由公司董事长吴某全面负责,分管证券的副董事长陈某具体负责,授意和组织其各下属企业制作虚假财会报告,2005年至2007年期间,A公司在向股东和社会
以下不是煤矿突水预兆的是()。
我国公路运输、航空运输从总体上看,属于完全竞争市场。
四大名著作者中,()与《聊斋志异》的作者是同一时代。
请编写函数fun,其功能是分别统计形参t所指二维数组中字母A和C的个数。注意:部分源程序存在PROG1.C中,请勿改动主函数main和其他函数中的任何内容,仅在函数fun的花括号中填入所编写的若干语句。1#nclude<stdio.h>2
Tomcouldhardly_____hisexcitementasheknewthathehadmadearealdiscovery.
最新回复
(
0
)