Self-driving cars are so popular that the University of Michigan has even established a town called Mcity to allow car manufacturers to safely test their autonomous cars.
While Mcity can be used to simulate(模拟)many real-life road conditions,it can't help test gestures drivers use to communicate their intention(意图)to other drivers,pedestrians or cyclists. To find a solution,US car manufacturer Ford,with researchers from Virginia Tech,at the beginning considered using text as a way to communicate the car's intention,but decided it would probably not work universally. The option of using symbols was also rejected,because research shows that a majority of people do not have a good understanding of what they mean.
Finally, the researchers settled on light signals. A white light warned that there were no humans in the car. A slow blinking one indicated that the car was coming to a stop, while a rapidly flashing light cautioned passersby that the car was about to speed up.
Then came the big challenge—testing the signals on real roads. "We needed to try out this new lighting to communicate the intention of the vehicle, but if you've got a driver behind the seat, you still have natural communication between humans," said Andy Shaudt, who led the research team. "So we needed to make it look like a driverless car."
The team designed a car seat costume(戏装)that the driver would wear to cover his or her face and upper body. Of course,the drivers could see very clearly. The researchers then equipped the car with cameras to capture human reactions to a light bar,which flashed one of the three signals when appropriate. Six drivers,all keeping their hands low on the wheel so as not to be noticed,took turns to test driving the car through the busy streets.
The overall reaction to the flashing lights was very encouraging. Who knew costumes could be useful for more than Halloween?
1. What did the team first consider using as a way to communicate the car's intention?A.Light. | B.Language. |
C.Symbols. | D.Sound. |
A.symbols | B.drivers |
C.researchers | D.flashes |
A.The car was coming to a stop. |
B.There was no driver in the car. |
C.The car was about to speed up. |
D.The car was about to slow down. |
A.amuse the driver | B.attract the pedestrians |
C.warn the cyclists | D.confuse the people |
相似题推荐
【推荐1】The science of papermaking addresses the methods, equipment, and materials used to make paper and cardboard, these being used widely for printing, writing, and packaging, among many other purposes and useful products. Today almost all paper is produced using industrial machinery.
The method of manual(手工的)papermaking changed very little over time, despite advances in technologies.
The wooden frame is called a “deckle” (定纸框).
A.Screening the fibre involves using a special net. |
B.The process of papermaking is really complicated. |
C.It leaves the edges of the paper slightly irregular and wavy. |
D.In laboratories handmade paper is prepared to study papermaking. |
E.However, traditional papermaking in Asia uses the inner skin fibres of plants. |
F.The process of manufacturing handmade paper can be generalized into five steps. |
G.But handmade paper is still appreciated for its distinctive uniqueness and the skilled craft. |
【推荐2】It’s a small step for Steve, but could this be a great progress in paralysis(瘫痪)?
Steve’s arms and legs were paralyzed after a fall four years ago. But when he’s wearing this robotic suit, he can use his thoughts to move again.
Learning to walk came quite quickly, but using the exoskeleton(外骨骼) to correctly bend and stretch his arms or turn his wrists took much longer.
So how does the exoskeleton work? Well, first Steve has electric device on the surface of his brain. They are reading his thoughts, his brain activity, his brainwaves, and they are being sent to a computer. Now, the computer has to receive that information at once and change that brain activity into orders, which are sent to the exoskeleton. From thought to movement, it takes less than a third of a second.
Steve first used this electric device in his brain to control a computer game before trying the exoskeleton. Now the French researchers plan to test the technology on three more patients.
This experimental exoskeleton is not going to become widely used soon. If you look, Steve’s body is connected to the ceiling of the room to stop him falling over. It means the exoskeleton can’t be used outside the lab. And it is also too expensive for most of the world to benefit. But this is still a breakthrough and shows the potential of technology to change lives.
1. What’s the usage of the underlined sentence in Paragraph 1 ?A.To question the usefulness of the exoskeleton. |
B.To lead in the topic and make readers interested. |
C.To compare with the former part of this paragraph. |
D.To offer the result of the experiment in advance. |
A.Brain→Computer→Orders→Exoskeleton |
B.Exoskeleton→Orders→Computer→Brain |
C.Orders→Computer→Exoskeleton→Brain |
D.Computer→Orders→Brain→Exoskeleton |
A.It’s readily available. | B.It can be used everywhere. |
C.It’s very steady to walk in it. | D.It’s far from perfect |
A.Steve walks a small step after paralysis. |
B.Mind-reading machine helps man walk again. |
C.Paralysis recovered with the help of a robotic suit. |
D.An experiment testing a machine. |
【推荐3】The Waverly Pilot (翻译耳机)
Technology seems to be advancing daily, but the Pilot by Waverly Labs, the world’s first translation earpiece, might be a truly huge step forward for communication.
The product
Though the Pilot is still very much in development, the product will be sold as two earpieces and a smartphone app. When first released, the technology will translate between only five European languages -English, Spanish, French, Italian and Portuguese.
Applications
Sci-fi dreams coming true
Flying into the future
Though the Pilot’s translation app is available now, the entire earpiece package is planned for delivery in May 2017 at a retail cost of US$250 to $300.
A.The earpiece has microphones to isolate the speaker’s voice, after which the speech will be sent to the app. |
B.The pilot can translate the information without any delay and pass it to the listener as quickly as possible. |
C.The product proved to be a great success the first time it appeared in the market, which helped its backers realize their dreams. |
D.The Pilot is joining other translators like Skype Translator and Google Translate, but it’s the first to add earpieces to the concept. |
E.For now, Waverly Labs is still hard at work improving the Pilot’s speed of translation and developing an offline mode. |
F.When the fundraising for the Pilot was launched on Indiegogo in May this year, it became apparent just how much the market wanted the product. |
【推荐1】The Google Brain team has been working on computing systems called “neural networks”—systems that were designed based on how neurons work in the human brain.
This time, they gave a mission to three of the neural networks, which they named Alice, Bob and Eve. Each of the networks had its own job—Alice sent messages to Bob, Eve tried to “eavesdrop”(偷听) and find out the messages, and Alice and Bob had to figure out a way to hide the messages from Eve. All the help that Alice and Bob got from the researchers before the mission began was made up of a set of numbers, which Eve didn’t have access to.
At first, Alice was not very good at sending secret messages. But slowly it worked on a way to encrypt(加密) them—putting information into a special code so that others could not understand it if they got the information—using he numbers given by researchers. And after practice, Bob also came to be able to decrypt(解密) Alice’s messages. Without the numbers or keys, Eve failed to understand Alice’s “speech” most of the time.
This test is considered a big step in the development of computers’ learning skills. “Computing with neural networks on this scale has only become possible in the last few years, so we truly are at the beginning of what’s possible, ” Joe Sturonas of US encryption company PKWARE told New Scientist magazine.
Unfortunately, the test happened only one week after UK physicist Stephen Hawking, While speaking at Cambridge University, warned how AI(artificial intelligence)could develop a will of its own. This could be “either the best or the worst thing ever to happen to human being”, he said.
But just as Sturonas pointed out, no matter what the possibilities of computers are in the future, they are just starting out. We still have plenty of time to work out a solution before they get anywhere near becoming a threat to humanity.
1. For what purpose was the test conducted?A.To study how neurons work in the human brain. |
B.To study how computing systems work and learn. |
C.To find out a more effective way to keep secrets. |
D.To find out a more powerful way to break the codes. |
A.encrypting—messages—code—messages—decrypting |
B.messages—encrypting—code—decrypting—messages |
C.code—messages—encrypt—decrypting—messages |
D.messages—code—decrypting—encrypting—messages |
A.AI must be a blessing. | B.AI should be forbidden. |
C.AI is sure to be a failure. | D.AI is a double-edged sword. |
A.Hopeful. | B.Doubtful. |
C.Puzzled. | D.Panicked. |
【推荐2】Want to see 16 sunrises in one day? Float in zero gravity? Be one of the few to have gazed upon our home planet from space? In just four years’ time, and for an astronomical $9.5 million dollars, it’s claimed you can.
What’s being billed as the world’s first luxury space hotel, Aurora Station, was announced Thursday at the Space 2.0 Summit in San Jose, California. Developed by US-based space technology start-up Orion Span, the fully modular space station will host six people at a time, including two crew members, for 12-day trips of space travel. It plans to welcome its first guests in 2022.
“Our goal is to make space accessible to all,” Frank Bunger, CEO and founder of Orion Span, said in a statement. “Upon launch, Aurora Station goes into service immediately, bringing travelers into space quickly and at a lower price point than ever seen before.” While a $10 million trip is outside the budget of most people’s two-week vacations, Orion Span claims to offer a real astronaut experience.
During their 12-day adventure, the super-rich travelers will fly at a height of 200 miles above the Earth’s surface in Low Earth Orbit, or LEP, where they will see incredible views of the blue planet. The hotel will orbit Earth every 90 minutes, which means guests will see around 16 sunrises and sunsets every 24 hours.
Activities on board include taking part in research experiments such as growing food while in orbit--which guests can take home for a super-smug souvenir—and soaring over their hometown. Guests can have live video chats with their less-fortunate loved ones back home via high-speed wireless Internet access and, upon return to Earth, will be greeted with a specially arranged hero’s welcome. While enjoying the thrills of zero gravity, the travelers will be able to float freely through the hotel, taking in views of the northern and southern Aurora from the station’s windows.
DepositsHYPERLINK “https://www.orionspan.com/aurora-station-reservations”(订金)are already being aHYPERLINK“http://www.orisonspan.com/aurora-station-reservations”cHYPERLINK“http://www.orionspan.com/aurora-station-reservations” cepted for future stays on the space hotel. The $80,000 is fully returnable, should applicants find themselves unable to rise to the full $9.5 million. Travelers will complete a three-month Orion Span Astronaut Certification (OSAC) program before takeoff. Orion Span has a team of space industry veterans who together have more than 140 years of human space experience.
1. What’s the purpose of questions in Paragraph 1?A.To ask questions about space travel. |
B.To describe what you can do in space. |
C.To arouse interest and introduce the topic. |
D.To tell us scientific facts about space and planet. |
A.old soldiers | B.doctors specializing in treating animals |
C.researchers | D.experienced people |
A.The luxury space hotel is designed specially for super-rich travelers. |
B.A 3-month training program is unnecessary before space travel. |
C.The space hotel will orbit the earth 16 times in total. |
D.The space hotel can only host 4 guests at a time. |
A.taking incredible photos of the earth |
B.receiving warm greetings from people back on earth |
C.buying a souvenir for loved ones from the space store |
D.participating in research experiments and appreciating Aurora |
A.they can not finish the Orion Span Astronaut Certification |
B.they are physically unfit for space travel |
C.they cannot hand in the full payment |
D.the space hotel is not ready in 2022 |
【推荐3】When it came to imaging the future, Arthur C. Clarke stubbornly refused to take credit for any predictions. The Internet, 3-D printers, email: he may have described them all long before they existed. As a science fiction writer, he came up with the idea of a “personal transceiver” that is small enough to be carried about, able to contact with anyone in the world and perform global positioning, making getting lost a thing of the past. Elsewhere, he predicted everything from online banking to reusable spacecraft. His best remembered fictional work of all is 2001: A Space Odyssey. It also happened to forecast the iPad, computer software that is able to read lips, and space stations.
Interestingly, his vision of the future has barely aged. For example, life in Sri Lanka inspired his 1979 novel, featuring a “space elevator”, a planet-to-space transportation system that would do away with the need for rocket travel. Those human settlements on Mars or Venus are decidedly behind schedule(we humans were expected to have set foot on both by 1980), and we’re still looking for the key that should have fully unlocked the languages of whales and dolphins by 1970.
It’s a way of thinking that was likely fuelled by his inability to be anything other than utterly absorbed in all that interested him. At the very start of his career, he shared a flat on London’s Gray’s Inn Road with fellow science fiction writers who nicknamed him “Ego” because of his talent for turning out (关掉) distraction. Once he’d become a big enough name to be interviewed, he’d send journalists home loaded with research papers.
He once said, “Trying to predict the future is a discouraging and risky occupation.” If a prediction sounds at all reasonable, technological progress is sure to leave it seeming “ridiculously conservative”. But if, by a miracle, a person were to be able to describe the future exactly as it will unfold, “His predictions will sound so absurd and far-fetched that everybody would laugh him to scorn (轻蔑).”
1. What can we infer from the first paragraph?A.Clarke is an imaginative science fiction writer. | B.Clarke is crazy about the future devices. |
C.Clarke is expert at telling one’s fortune. | D.Clarke is a rarely talented inventor. |
A.there is no need for rocket travel in future |
B.unlocking the languages of animals is ahead of time |
C.humans were expecting to settle on Mars by 1980 |
D.Clarke’s predictions still seem impossibly distant |
A.He could focus all his mind on something. | B.He cared more about himself than others. |
C.He was absorbed in what interested him. | D.He was proud of being a big name. |
A.The rapid progress of technology. | B.The absurdness of some predictions. |
C.The difficulty of predicting the future. | D.The miracle of dependable predictions. |