Biological Identification Technologies
When a person walks,the movement of his head,trunk,and limbs(肢体)are a reflected in changes in his body.A computer stores these database(数据库).Later,the computer can accurately to these changes.This is a new biological identification quickly identify an examinee without disturbing him.
Eve body’S voice is_______(51)into a_______(52)him according________(53)and it can_________(54).When a person’S voice is recorded by an instrument,his voice frequency spectrum(频谱)is called sound print fingerprint,eye.body’S sound print is different.How can a computer his sound? First,his voice is recorded_________(55)a fingerprint, everybody’s sound print is different. How can a computer________(56)his sound? First, his voice is recorded,________(57)allows the computer to become familiar with his voice.It will then turn his sound characteristics into a series of digits(数字).These are the _________(58)on which the computer can distinguish his voice from another's.
We often bring ID cards,work cards,or driving licenses with US to _________(59)our identity.If all these cards are forgotten or lost,how can we prove whom we are? in________(60),it's not difficult to prove whom you are________(61)your body itself has identifying markers.Some are physiological(生理的)features,such as fingerprints,一sounds,facial(面部的)types and eye color.The computer can________(62)to identify you.Suppose your features have already been________(63)in the database.To identify you.we have to take your picture with a camera and send it to a computer for________(64).First,the computer needs to reposition this picture according to the position of your eyes,and then starts to read the ________(65)of your physiological features such as the ratio of your pupil to the whites of your eyes and the shape of your nose.Next,it seeks matching records from the database.Finally, it makes a decision.
51. A parts B changes C positions D directions
52. A identify B inform C affect D bother
53. A number B card C level D method
54. A soft B loud C unique D clear
55. A With B Like C For D As
56. A distinguish B make C gather D develop
57. A who B where C that D which
58. A reasons B causes C basis D origin
59. A prove B create C hide D protect
60. A all B fact C summary D casewww.
61. A unless B though C so D because
62. A stop B help C mean D continue
63. A stored B borrowed C searched D linked
64. A printing B researching C processing D filing
65. A point B picture C size D message
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