An international team led by scientists at the Hong Kong University of Science and Technology（HKUST） has recently developed the world's first 3 D artificial eye with capabilities that even outperform those of the human eyes，bringing vision to humanoid robots and new hope to patients with visual damage.
Scientists have spent decades trying to produce the exact copies of the structure and clarity of a biological eye，but vision provided by existing artificial eyes with external wires are still in poor resolution （分辨率） with 2 D flat image sensors.The Electrochemical Eye （EC-Eye） developed at HKUST，however，may actually offer sharper vision than a human eye，with extra functions such as the ability to see things in darkness.
The key feature allowing such breakthroughs is a 3 D artificial retina （視網(wǎng)膜），made of nanowire light sensors which are like the photoreceptor in human retinas.The scientists connected the nanowire light sensors to some liquid metal wires serving as nerves behind the human made retina during the experiment，and successfully carried out the visual signal transmission to reflect what the eye sees onto the computer screen.In the future，those nanowire light sensors could be directly connected to the nerves of the visually damaged patients.Apart from that，the artificial retina can receive more light signals and potentially attain a higher image resolution than human retina.
With further adjustment，the EC-Eye can be a self-powered image sensor，so there is no need for external power source which will be much more user-friendly as compared with the current technology. "The current artificial eyes are still of no match to the human eyes.A new technology is in urgent need and it gives me a strong motivation to start this unconventional project.In the next step，we plan to further improve the performance of our device.Animal and clinical trials are now being planned.I think if everything is on track，perhaps in five years，the technology will become practical，" said Prof.Fan，whose team has spent nine years to complete the current study.
（1）What's the feature of the EC-Eye？ BB
A．It uses 2 D flat image sensors.
B．It provides a clearer vision than human eyes.
C．It performs better at night than in the day.
D．It is attached with external wires.
（2）What's the function of nanowire light sensors？ CC
A．To send computer signals.
B．To serve as nerves behind the retina.
C．To receive visual signals.
D．To connect nerves of patients to the wires.
（3）What can we infer about the EC-Eye from Dr.Fan's words？ AA
A．It is different from the previous devices.
B．It has been improved by the team.
C．It will be in clinical trials in five years.
D．It is of no match to human eyes.
（4）What can be the best title for the text？ CC
A．EC-Eye Will Become Popular
B．Nanowire Light Sensors Help People See
C．Scientists Have Developed First Artificial 3 D Eye
D．EC-Eye Helps to Cure People of Eye Diseases
【答案】B；C；A；C
【解答】
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發(fā)布：2024/5/27 14:0:0組卷：3引用：2難度：0.6
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（1）What can we know about Burlington School？
A．It is open all year.
B．It is located in London.
C．It provides no accommodation.
D．It offers no social practice classes.
（2）Which school offers the biggest discounts？
A．Burlington School.
B．New School of English.
C．University of Liverpool.
D．Interactive English School.
（3）How is New School of English different from the others？
A．It sets a strict age limit.
B．Its accommodation is optional.
C．Its teachers are qualified and experienced.
D．It offers General and Specialist English courses.發(fā)布：2025/1/6 16:30:6組卷：0引用：1難度：0.6 -
2．Ever since I graduated from high school I've worked in the factories surrounding my hometown every summer.However，making the transformation between school and full-time blue-collar work during the break never gets any easier.For a student like me who considers any class before noon to be unacceptable，getting to a factory by 6 o'clock each morning is suffering.My friends never seem to understand why I'm so relieved to be back at school or that my summer vacation has been anything but a vacation.
There are few people as self-confident as a college student who has never been out in the real world.People of my age always seem to overestimate the value of their time and knowledge.In fact，all the classes did not prepare me for my battles with the machine I ran in the plant，which would jam whenever I absent-mindedly put in a part backward or upside down.
The most stressful thing about blue-collar life is knowing your job could disappear over night.Issues like being laid off and overseas relocation had always seemed distant to me until my co-workers told me that the unit I was working in would shut down within six months and move to Mexico，where people would work for 60 cents an hour.
After working 12-hour shifts（輪班）in a factory，the other options have become only too clear. "This job pays well，but it's hell on the body，" said one co-worker. "Study hard and keep reading." she added.When I'm back at the university，skipping classes and turning in lazy re-writes seems too irresponsible after seeing what I would be doing without school.All the advice and public-service announcements about the value of an education that used to sound stale（陳腐的）now ring true.
My experiences in the factories have inspired me to make the most of my college years before I enter the real world for good.
（1）What does the author think of his summer holiday？
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B．He learned to be more practical at work.
C．He began to respect blue-collar workers.
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3．The size of the British Isles often leads people to think that the languages spoken in its countries of England，Scotland，Wales and Northern Ireland are somewhat the same.At first，visitors are often surprised to find that they have difficulty in understanding the accents and dialects of certain regions.Even in England there are many different dialects.
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A．show they are different from others
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A．By speaking to him.
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D．It shows the relationship between people from different classes.發(fā)布：2025/1/6 16:30:6組卷：0引用：5難度：0.5
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