Question

    In a world where nearly 6 million fingerprint records of government employees are stolen in one computer hack, and here millions of people are victims of identity theft every year, the next step in cybersecurity may well be mapping your brain.

Researchers at Binghamton University, State University of New York are working on a biometric system that records how your brain reacts to certain images. With a little more polishing, the scientists^’ brainchild could become the way you get into a safe deposit box, your office or past scanners at the airport. It could replace the password for your online banking, your email or your social media accounts.

The started their project by measuring the brain waves of 30 subjects, The subjects were fitted with a cap that had 30 electrodes attached to it, and then shown various images and symbols—celebrity faces, words, pictures of food—on a computer screen in 200- millisecond bursts. The brain's reaction was recorded.

The idea is that every time a person needs to use a “password”, he or she goes through the same procedure, and the results are matched with their first-time reaction. If the “brainprint”' is compromised—like what happened with the fingerprint records—then the system is merely reset by running another set of images and collecting a different set of brain waves. “Even if that was stolen, you could just cancel it and record one to something else”, says professor Laszlo.

Laszlo and her team have shown that their system can be 100 percent accurate. So one of the more difficult parts of making the system practical already has been overcome. Now they're spending much time recording accurate brainprints with as few as three electrodes, which could make recording in the future as easy as wearing a pair of special glasses. They're also working with cheaper material and methods to see if they can bring the cost down.

1.What does the underlined word “brainchild” in Paragraph 2 refer to?

A.The brain function. B.The fingerprint record.

C.The biometric system. D.The online password.

2.Why were the images and symbols shown to the subjects?

A.To create their brainprints. B.To check the brain's reaction.

C.To match brainprints with pictures. D.To connect brain waves to electrodes.

3.What are the researchers doing with the program now?

A.Making it user-friendly. B.Improving its accuracy.

C.Recording more brainprints. D.Increasing the number of electrodes.

4.Which's the best the title of this passage?

A.Brain waves—the necessity of passwords B.Biometric systerm—the hope of cybersecurity

C.Brainprint—the future of passwords D.Fingerpint—the challenge of cybersecurity

Answer

1.C

2.A

3.A

4.C

【解析】

这是一篇说明文。文章主要介绍了在一次电脑黑客攻击中，近600万份政府雇员的指纹记录被盗，每年有数百万人成为身份盗窃的受害者，网络性安全的下一步很可能就是绘制你的大脑地图。文章主要介绍了一项生物识别技术——“脑印”技术的开发过程和未来的方向。

1.

词义猜测题。根据上文Researchers at Binghamton University, State University of New York arc working on a biometric system that records how your brain reacts to certain images. 说纽约州立大学宾汉姆顿大学的研究人员正在研究一种生物识别系统，该系统可以记录大脑对特定图像的反应。由此可知划线词所在的句子With a little more polishing, the scientists' brainchild could become the way you get into a safe deposit box, your office or past scanners at the airport.意思是再稍加打磨，科学家的生物识别系统就可以成为你进入保险箱、办公室或机场扫描仪的方式。由此可知，“brainchild”指的是“生物识别系统”。故选C。

2.

推理判断题。根据第三段The subjects were fitted with a cap that had 30 electrodes attached to it, and then shown various images and symbols—celebrity faces, words, pictures of food—on a computer screen in 200-millisecond bursts. The brain’s reaction was recorded.可知受试者戴上一个有30个电极的帽子，然后在电脑屏幕上以20毫秒的速度显示出各种各样的图像和符号——名人的脸、文字、食物的图片。大脑的反应被记录下来。由此可知，图像和符号被展示给受试者，是为了创造他们的脑印。故选 A。

3.

推理判断题。根据最后一段Now, they're spending much time recording accurate brainprints with as few as three electrodes, which could make recording in the future as easy as wearing a pair of special glasses. They're also working with cheaper materials and different methods to see if they can bring the cost down.可知现在，他们只需要三个电极就可以记录下精确的脑印，这使得在未来记录起来就像戴上一副特殊的眼镜一样简单。他们也在使用更便宜的材料和不同的方法，看看是否能降低成本。可知现在，研究人员正在使这个程序更容易使用。故选A。

4.

主旨大意题。根据第一段In a world where nearly 6 million fingerprint records of government employees are stolen in one computer hack, and here millions of people are victims of identity theft every year, the next step in cybersecurity may well be mapping your brain.可知当今世界，在一次电脑黑客攻击中，近600万政府雇员的指纹记录被窃取，每年有数百万人成为身份盗窃的受害者，网络安全的下一步很可能就是绘制你的大脑图谱。结合文章主要介绍了“脑印”技术的开发过程和未来的方向。由此可知，C选项“脑印——密码的未来”最符合文章标题。故选C。