Question

【題目】“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 ,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】

本文是一篇說明文，主要介紹了新的身份識別系統(tǒng)“生物測定學(xué)”的具體運用、特點以及人們對這一新技術(shù)的態(tài)度看法。

【1】推理判斷題。作者在第一段里列舉銀行利用“虹膜掃描”的技術(shù)辨別申請人的身份，順利付款。引出下文生物測定學(xué)的討論內(nèi)容，所以第一段舉例說明引起下文。故A項正確。

【2】猜測詞義題。根據(jù)第三段第一句“Biometrics identification systems have a number of advantages over password systems.”可知生物測定識別系統(tǒng)有很多好處，它是用來識別具體對象的身份的。所以“verify a person’s identity”中的verify意為“堅定，識別”。與B項語意類似。

【3】細節(jié)理解題。根據(jù)第六段第一句“Iris scans currently give the highest level of accuracy among all the available biometrics systems.”可知“虹膜掃描”是所有的生物測定技術(shù)里最準(zhǔn)確的。故C項正確。

【4】推理判斷題。根據(jù)最后一段前兩句“The potential of biometrics is exciting and encouraging . With continued development , testing , and application , current technologies will become even more effective in the future.”可知生物測定技術(shù)的潛力令人激動，也鼓舞人心，未來的技術(shù)會變得更加有效。說明作者對生物測定技術(shù)的未來是樂觀的。故D項正確。