组卷网 > 高中英语综合库 > 主题 > 人与社会 > 科普与现代技术 > 科学技术
题型:阅读理解-阅读单选 难度:0.4 引用次数:251 题号:12818298

Most online fraud(诈骗) involves identity theft Passwords help. But many can be guessed. Newer phones, tablets, laptops and desktop computers often have strengthened security with fingerprint and facial recognition. But these can be imitated. That is why a new approach, behavioural biometrics(行为生物识别) is gaining ground.

It relies on the wealth of measurements made by today’s devices. These include data from sensors that reveal how people hold their phones when using them, how they carry them and even the way they walk. Touchscreens, keyboards and mice can be monitored(监测) to show the distinctive ways in which someone’s fingers and hands move. These features can then be used to determine whether someone attempting to make a deal is likely to be the device’s habitual user.

“Behavioural biometrics make it possible to identify an individual’s unique motion fingerprint”, says John Whaley, head of Unifyid, a firm in Silicon Valley that is involved in the field. When coupled with information about a user’s finger pressure and speed on the touchscreen, as well as a device’s regular places of use—as revealed by its GPS unit—that user’s identity can be pretty well determined.

Used wisely, behavioural biometrics could be a great benefit. In fact, Unifyid and an unnamed car company are even developing a system that unlocks the doors of a vehicle once the pace of the driver, as measured by his phone, is recognized. Used unwisely, however, the system would become yet another electronic spy on people’s privacy, permitting complete strangers to monitor your every action, from the moment you reach for your phone in the morning, to when you throw it on the floor at night.

1. What is behavioural biometrics for?
A.To identify network crimeB.To ensure network security.
C.To track online fraud.D.To gather online data.
2. How does behavioural biometrics work?
A.By limiting and discovering users’ passwords.
B.By spotting and revealing where a device is regularly used.
C.By offering and analyzing users’ facial features.
D.By monitoring and comparing how users interact with devices.
3. What’s the author’s attitude towards behavioural biometrics?
A.Doubtful.B.ConcernedC.Favorable.D.Objective.
4. From which section of a magazine can this passage possibly be taken?
A.Science and technology.B.Health and wealth.
C.Finance and economicsD.Books and arts

相似题推荐

阅读理解-阅读单选(约510词) | 较难 (0.4)
名校

【推荐1】Imagine how you’d feel if you had to get more than 9,000 tons of junk out to the sidewalk. That’s how much trash is floating around in space. In fact, there’s about 4 million pounds flying over our heads in low-Earth orbit. Daan, a Dutch artist, and his team at Space Waste Lab have come up with a creative plan that could clear up space junk in a spectacular fashion.

Most space waste comes from dead satellites and rockets. Functioning satellites are the backbone of the information systems that keep our world running smoothly. But all the satellites eventually become obsolete within just a few decades. When they die out, there’s the problem of them drifting in outer space, collecting in what scientists call the “graveyard orbit.”

Maybe you’re thinking, “Why should I care about garbage 12,500 miles above me?” Well, all that fun stuff that satellites help beam down to us—mobile games, Instagram, cat videos—could be shut down by space waste. Lots of old junk floating around up there, plus new satellites added each year, means more and more high-speed collisions (碰撞). And when chunks of junk crash into one another, they break apart into millions of pieces, quickly building up speed and turning into fast-moving objects, which are dangerous to operational satellites as well as astronauts working on the International Space Station.

Space waste is a problem that’s escalated so much, some scientists say that by 2050 we’ll be forced to stop launching new spacecraft altogether, including new satellites. Think about that for a minute. When the last satellites finally become disused, GPS, cell phones, and the Internet will no longer function.

So we have to find a way to deal with this space garbage, and Daan pictures a sort of trash pickup, which involves groups of small spacecraft casting large nets into orbit that would collect space debris (碎片) and send it back toward Earth at top speed. Here’s the best part—while reentering Earth’s atmosphere, the pieces of junk would burn up all at once, creating a light show similar to hundreds of shooting stars falling in the night sky. A spectacle indeed!

To get ready for such an amazing effort, Space Waste Lab has been traveling to major cities across Europe and enlightening the public on the problem of the junk in space. But Daan doesn’t just talk about ways to relieve the problem—he’s created something a little grander than that. In October 2018, his team launched Space Waste Lab Performance, an outdoor art exhibition that shows the location of each piece of space trash using large lasers that make each debris look a bit like a star wandering slowly and silently over the sky, allowing viewers to wave and say, “Hallo, space trash!”

1. The word “obsolete” (paragraph 2) is closest in meaning to “______”.
A.accessibleB.profitable
C.floatingD.outdated
2. According to the passage, which sentence best replaces the question mark in the diagram?
A.Working satellites can be damaged and astronauts can be hurt.
B.Satellites can help people track the weather and find new locations.
C.There is more junk floating in space each year as new satellites are added.
D.The Space Waste Lab Performance can show people where satellites are located.
3. Which of the following best supports the idea that space waste should be dealt with very soon?
A.Sentences ①B.Sentence ②
C.Sentence ③D.Sentence ④
4. Which of the following might be the best title of the passage?
A.Space Junk Harms Digital Systems
B.Artists’ Proposal to Save Space
C.A New Glimpse into Outer Space
D.Test of Waste Collection Nets
2020-01-03更新 | 325次组卷
阅读理解-阅读单选(约390词) | 较难 (0.4)
文章大意:本文是夹叙夹议文。本文探讨了虚拟现实(VR)和元宇宙(Metaverse)的潜在问题,特别是关于过度使用和成瘾的问题。

【推荐2】My family has a new toy. At every gathering, a Mata Quest 2 virtual reality headset is now carefully unpacked and passed around. The metaverse (元宇宙) that the headsets access sounds like an appealing place. Create your own form, move between worlds and beyond the limitations of reality — what could be better? Yet the headsets are still massive and the apps cartoonist. Even the game my family loves best shows that perfect interaction with the real world and realistic pictures are still years away. After an hour, not even my nephews want to play anymore.

Yet this observation runs counter to the steady drumbeat of warnings that have emerged about virtual life over the past year. When Meta whistleblower Frances Haugen spoke out against her employer, addiction to the metaverse was one of the things she claims to be most worried about. Immersive environments would encourage users to disconnect from reality altogether, she said.

You can see why product managers like Haugen might worry. Many of us lost the battle against limiting our Internet use long ago. Tech addiction has tricked our brains into habits that ensure our overconsumption of tech products. For instance, our addiction to checking and rechecking our messaging apps. Or looking out for email notifications (通知). On this point, I agree. I’m guilty of both. I turned my own screentime reminders off months ago. Simply knowing how much time I was spending on my phone didn’t seem to be having any effect on my habits.

In lockdowns, spending hours at a time on the Internet became normalized. Yet this does not mean we are all on the edge of spending hours and hours in the metaverse. In the four years I have spent testing out virtual and augmented (强化的) headsets, I have yet to try one that feels comfortable. “Like tying a brick to your forehead,” as one friend put it. It is possible to buy upgraded head bands that attempt to redistribute the weight, but even so the sets still remain heavy.

1. How did the attitude of the author’s family change towards playing VR games?
A.From being absorbed to bored.
B.From being confused to confident.
C.From being curious to excited.
D.From being casual to interested.
2. In paragraph 2, what does the underlined phrase “run counter to” mean?
A.Confirm.B.Challenge.C.Repeat.D.Ignore.
3. What does the underlined word “both” refer to?
① minimizing online use.
② checking messaging apps repeatedly.
③ being addicted to email notifications.
④ silencing the screen-time reminders.
A.①②B.②③C.③④D.①④
4. What might stop people from spending too much time on the metaverse?
A.The addiction to virtual reality.
B.The anxiety caused by lockdowns.
C.The heaviness of virtual reality headsets.
D.The cost involved with buying tech products.
2024-01-29更新 | 137次组卷
阅读理解-阅读单选(约340词) | 较难 (0.4)

【推荐3】Criminals who try to pass off fake art as the real deal should be careful now. A new identification method could make recognizing fakes much easier. The technique allows scientists to tag paintings and other artworks with tiny pieces of DNA, which act like a signature. If an artwork missed the tag, people would immediately know it was an illegal copy.

DNA is normally found inside the cells of all living things. However, researchers at the State University of New York at Albany, who developed the tagging technique, have created DNA in a lab, whose code is just as unique as that of DNA found in nature.

The scientists would apply the engineered DNA to a small tag and place it on an artwork. Over time, the DNA in the tag would bond with the art at a molecular(分子的) level. That way, even if the tag is removed, the DNA remains. Possible buyers and sellers can use a scanner to read a DNA tag or, if the tag is missing, swab(擦拭) the artwork to test for DNA inside. Then they check the molecular marker against a database of artists to make sure the work is real.

Some famous artists have already agreed to try this high-tech way to sign their art. That’s because fakes are huge problems in the art world. It’s said that as many as two out of every five artworks sold these days are fakes. Some seem so convincing that experts are needed to prove whether they’re real or not.

Although a painting may be perfectly copied, it would be nearly impossible to copy a DNA tag. Applying the tag doesn’t harm the work itself. Even better, they each cost only about $150—an inexpensive price for a technology that could save museums, art galleries, and private collectors billions.

1. What’s the main idea of the third paragraph?
A.How the DNA tag works.B.How the DNA tag is made.
C.What a database is used for.D.What can be done if the DNA tag is lost.
2. Which of the following is NOT the advantage of the DNA tag?
A.It is affordable.B.It can hardly be copied.
C.It can renew automatically.D.It does no damage to the artworks.
3. What does the underlined word “convincing” in Paragraph 4 probably mean?
A.Authentic.B.Elegant.C.Attractive.D.Complex.
4. What might be the best title of the text?
A.Copying a DNA TagB.Spotting a Fake
C.The Discovery of DNAD.A New Application of Natural DNA
2018-01-30更新 | 148次组卷
共计 平均难度:一般