相关试卷

Researchers at Binghamton University are working on a biometric (生物特征的) 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 e-mail or your social media accounts.

They 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 to their first-time reaction. If the "brainprint" is cracked — like what happened to 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 per cent accurate. So one of the most 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 materials and different methods to see if they can bring the cost down.

Over a year ago, work to develop automaton (自动化) began. At first, it was designed like a machine, and didn't live up to expectations. Then the company sought ways to improve it. In the end, it was given two arms with joints to copy wrists and elbows, allowing it to move a stick similarly to how a human conductor would move it. It was named the EverR 6 robot, and stands at 1.8 meters. It was finally time to figure out how it could follow through on its musical role.

"We got involved in this project to see how far robots can go in more creative fields like the arts, and what the challenges are," Dong-wook Lee, a senior researcher at the Korean Institute of Industrial Technology said.

In order to pull this off, Dong-wook Lee cooperated with the Busan Philharmonic Orchestra. The 12-minute piece they planned to perform, "Feel" by Il-hoon Son, was created specifically for this event. It was created with the strengths of both EverR 6 and the human conductor, Soo-yeol Choi, in mind.

To pull off this impressive performance, the robot was preprogrammed to conduct through 30 cycles of beat patterns. Meanwhile, it was up to the human conductor to lead the orchestra in creating an improvisational (即兴的) score, adding depth to the otherwise planned piece.

Together, they pulled off a masterful performance that the audience seemed more than happy to have had the opportunity to witness it firsthand!

With the concert having gone so well, this is only the start of EverR 6. Still, no matter the improvements they're able to make to this Android robot, the human conductor isn't concerned about being replaced.

"Let's leave the accuracy to the robots," Soo-yeol Choi said, "but the musical and artistic aspects to a human conductor."

I always wanted to know what my mom was reading. Hearing mom say, "I can't believe what's printed in the newspaper this morning," made me want to grab it out of her hands and read it myself. I wanted to be like my mom and know all of the things she knew. So I carried around a book, and each night, just to be like her, I would pretend to be reading.

This is how everyone learned to read. We would start off with sentences, then paragraphs, and then stories. It seemed an unending journey, but even as a six-year-old girl I realized that knowing how to read could open many doors. When mom said, "The C-A-N-D-Y is hidden on the top shelf," I knew where the candy was. My progress in reading raised my curiosity, and I wanted to know everything. I often found myself telling my mom to drive more slowly, so that I could read all of the road signs we passed.

Most of my reading through primary, middle and high school was factual reading. I read for knowledge, and to make A's on my tests. Occasionally, I would read a novel that was assigned, but I didn't enjoy this type of reading. I liked facts, things that are concrete. I thought anything abstract left too much room for argument.

Yet, now that I'm growing and the world I once knew as being so simple is becoming more complex, I find myself needing away to escape. By opening a novel, I can leave behind my burdens and enter into a wonderful and mysterious world where I am now a new character. In these worlds I can become anyone. I don't have to write down what happened or what technique the author was using when he or she wrote this. I just read to relax.

We're taught to read because it's necessary for much of human understanding. Reading is a vital part of my life. Reading satisfies my desire to keep learning. And I've found that the possibilities that lie within books are limitless.

Classical Provence(13days)

Journey through the beautiful countryside of Provence，France，with Prof. Ori Z. Soltes. We will visit some of the best-preserved Roman monuments in the world. Our tour also includes a chance to walk in the footsteps of Van Gogh and Gauguin. Fields of flowers, tile-roofed(瓦屋顶)villages and tasty meals enrich this wonderful experience.

Southern Spain(15days)

Spain has lovely white towns and the scent(芳香)of oranges，but it is also a treasury of ancient remains including the cities left by the Greeks，Romans and Arabs. As we travel south from Madrid with Prof. Ronald Messier to historic Toledo，Roman Merida and into Andalucia, we explore historical monuments and architecture.

China's Sacred Landscapes(21days)

Discover the China of "past ages," its walled cities，temples and mountain scenery with Prof.   Robert Thorp. Highlights(精彩之处)include China's most sacred peaks at Mount Tai and Hangzbou's rolling hills，waterways and peaceful temples. We will wander in traditional small towns and end our tour with an exceptional museum in Shanghai.

Tunisia(17days)

Join Prof. Pedar Foss on our in-depth Tunisian tour. Tour highlights include the Roman city of Dougga，the underground Numidian capital at Bulla Regia, Roman Sbeitla and the remote areas around Tataouine and Matmata，uique for underground cities. Our journey takes us to picturesque Berber villages and lovely beaches.

E-Scooters

Over the past two years, electric scooters have become ever-present in many of Europe and America's biggest cities. Britain is the last major western European country to hold out against the . E-scooters are not allowed on public roads, though people do ride them on cycle  and pavements. But where they are permitted, the number of e-scooter sharing companies soars . To their , e-scooters are revolutionary: the "iPhone Of urban transport". To their critics (批评者), they are dangerous, anti-social and very annoying.

As with a dockless (无桩) bike, scooters are fitted with GPS trackers and wireless . Customers download an app and scan a QR code on the scooter to unlock it. They are then  a small amount. Bird, which launched its e-scooter in Santa Monica, California in September 2017 charges $l plus 15 cents per minute, on average, in the US-to travel where they want to go, at a maximum speed of around 15mph. At night, the scooters are rounded up, charged and returned to popularity.

E-Scooters have the potential to solve some of the worlds biggest transport problems. Most cities are already dangerously polluted and heavily congested, and it is simply not an option to put more cars and taxis on the streets. Scooters are efficient; one kilowatt hour of energy carries a car  by petrol less than a mile, and an e-scooter 80 miles.

Scooters are clean, cheap, and they require little new infrastructure. For a country like car- America, they could genuinely transform an  60% of US journeys under six miles. Even in European cities, which  have good public transport systems, they are very useful for travelling the "final mile". According to Bird,40% of taxi-riding journeys in London are under two miles, so e-scooters could help take a lot of cars off the streets.

—No.Only ________ hard working.

Conservation measures will have to be put in place if these deep-sea fish are to survive. Research on five such species shows that numbers have declined by between 87 percent and 98 percent. Many species could well disappear completely if the present trend continues. These are species that have been swimming in our oceans for hundreds of millions of years.

The problem is emphasized by the fact that the decline in numbers happened in less than twenty years. Deep-sea fish take a long time to reproduce and normally live for many years. The average size of such fish also declined, with one species showing a 57 percent decline in average size. This is of particular concern, as large fish tend to produce more offspring than small ones.

The deep-sea species have been caught as if they were the fast-breeding (快速繁殖) fish like sardine and herring. It is like killing elephants as if they reproduced at the same rate as rabbits.

The damage done by overfishing goes beyond the sea environment. Millions of people make a living in the fishing industry. Measures must be taken to not only conserve ecosystems, but also sustain livelihoods and ensure food security.

A. Billions of people rely on fish for protein.

B. Many people now choose not to eat deep-sea fish.

C. Unfortunately, their reproduction rate is very low.

D. This puts them in the category of "critically endangered".

E. None of these facts has been taken into account by the fishing industry.

F. Overfishing is a major cause of decline in populations of ocean wildlife.

G. This has resulted in a sharp decline in the numbers of many of the species caught.