Biological Identification Technologies
When a person walks, the movement of his head, trunk, hipbones and limbs are all reflected in changes in his body. A computer 1 these changes into a database. Later, the computers can 2 identify him according to these changes. This is a new biological identification method and it can quickly identify an examinee 3 disturbing him. Its especially suitable for use in airports and supermarkets.
Everybodys voice is 4 . When a persons voice is recorded by an instrument, its voice frequency spectrum is called his sound print. Like a fingerprint, everybodys sound print is different. How can computers 5 his sound? First, his voice is recorded, which allows the computers to become familiar with his voice. It will then turn his sound characteristics into a 6 of digits. These digits represent the frequency, pitch and rhythm of the persons voice. These are the 7 on which the computers can distinguish1 his voice from 8 .
When that person needs to be identified, after he says only one word or two, the computers can identify him. The computers can even identify sounds coming 9 the wires. This will provide a 10 guarantee to electric banks and electric purchases.
We often bring ID cards, work cards, or driver licenses with us to prove our identity. If all these cards are forgotten or lost, how can we prove 11 we are? In fact, its not difficult to prove whom you are, because your body 12 has identifying markers. Some are physiological features, such as fingerprints, sounds, facial types and eye color. The computer can help to identify you. Suppose your features have already been stored in the database. To identify you, we have to take your picture with a camera and send it to a computer for 13 . First, the computer needs to reposition this picture according to the position of your eyes and then starts to read the message of your physiological features such as the 14 of your pupil to the whites of your eyes and the shape of his nose. Next, it seeks matching records from the database. Finally, it makes a 15 .
练习:
1.A) checksB) storesC) revisesD) modifies
2.A) nearlyB) approximatelyC) roughlyD) accurately
3.A) withoutB) withC) forD) in
4.A) identicalB) similarC) uniqueD) sole
5.A) hearB) understandC) distinguishD) record
6.A) seriesB) packageC) lineD) pair
7.A) originB) causeC) reasonD) basis
8.A) othersB) anothersC) each othersD) one anothers
9.A) atB) onC) inD) through
10.A) clevererB) tidier C) smarterD) safer
11.A) howB) whomC) whatD) where
12.A) oneselfB) themselvesC) itselfD) himself
13.A) processingB) copyingC) coloringD) revising
14.A) sizeB) typeC) ratioD) shape
15.A) recommendationB) decisionC) proposalD) contribution
美国大学教授规定上课说错话可能被挂科
揭秘9.3大阅兵背后的故事
我国将推进“分级诊疗制度”
埃及人热衷沙漠黄沙浴,称可治疗多种疾病
新式现代病“爆炸头综合症”
谁说特朗普不可能当选美国总统
深圳出现高盛融资租赁公司
中国欧式小镇无人问津沦落成鬼城
莫斯科获评世界最不友好城市
男子搞笑发明防偷吃神器热卖
世锦赛中国1金7银1铜创历史
外出小心!全球15大手机高危旅游景点
英语初三暑假作业练习2015苏教版
中国单身男性人数5年后将超澳人口
白手起家到名利双收:5位最励志美国企业家
俄罗斯能够摆脱普京铁腕
奥巴马携手贝爷秀野外生存技能
抗日战争词汇权威英译
东京奥运会徽弃用网友来支招
一票难求的卷福版哈姆雷特 各大外媒怎么说
哪些事不去美国不知道 一去吓一跳
小学一年级英语下册暑假作业题
偏爱基情《神探夏洛克》中国腐女走红
抗战胜利70周年“纪念币”发行
中国放缓危及安倍经济学
牛津英语小学一年级下册暑假作业试卷
国防部披露裁军细节
投资or存款?跟美国创业者学理财
美国大学生求职不顺卖文凭
抗战胜利70周年阅兵在即 八大看点不容错过
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |