Question

【题目】“Iris scan (虹膜扫描) ， 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( 生物测定学) 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 ,including fingerprints , 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!

【1】The first paragraph serves as a(n) __________.

A. example B. explanation

C. comment D. conclusion

【2】The underlined word “verify” in Paragraph 2 probably means “_____”.

A. protect B. confirm

C. develop D. change

【3】Which is the most accurate form of biometrics?

A. The voice scan B. The fingerprint scan

C. The iris scan D. The facial scan

【4】What is the author’s attitude towards the future of biometrics?

A. He is uncertain about it . B. He feels doubtful about it .

C. He is worried about it . D. He feels hopeful about it .

Answer 1

【答案】

【1】A

【2】B

【3】C

【4】D

【解析】

本文是一篇说明文，主要介绍了新的身份识别系统“生物测定学”的具体运用、特点以及人们对这一新技术的态度看法。

【1】推理判断题。作者在第一段里列举银行利用“虹膜扫描”的技术辨别申请人的身份，顺利付款。引出下文生物测定学的讨论内容，所以第一段举例说明引起下文。故A项正确。

【2】猜测词义题。根据第三段第一句“Biometrics identification systems have a number of advantages over password systems.”可知生物测定识别系统有很多好处，它是用来识别具体对象的身份的。所以“verify a person’s identity”中的verify意为“坚定，识别”。与B项语意类似。

【3】细节理解题。根据第六段第一句“Iris scans currently give the highest level of accuracy among all the available biometrics systems.”可知“虹膜扫描”是所有的生物测定技术里最准确的。故C项正确。

【4】推理判断题。根据最后一段前两句“The potential of biometrics is exciting and encouraging . With continued development , testing , and application , current technologies will become even more effective in the future.”可知生物测定技术的潜力令人激动，也鼓舞人心，未来的技术会变得更加有效。说明作者对生物测定技术的未来是乐观的。故D项正确。