炎德英才大联考雅礼中学2024届高三2024届高三月考试卷四英语

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When only about eight years old,Ben Choi became attracted by mind-controlled prostheses()He saw a documentary on these prostheses,which are controlled by devices planted in thebrain."I was really amazed,"recalls the now 17-year-old senior at the Potomac School in McLean,Va."But it was also pretty alarming."Planting the devices required risky brain operations,andthose prostheses cost hundreds of thousands of dollars.That always kind of stuck with him.In2020,Ben set out to create his own non-invasive,low-cost bionic(仿生学的)arm.He setup shop on a basement ping-pong table.His first arm was built with a small 3-D printer borrowedfrom his sister.After updating his design more than 75 times,Ben has now showed a developedversion of the arm using industry-grade material.It still costs less than $300 to make.The arm is controlled by a device worn on the forehead whose sensors pick up the brain'selectrical activity,or brainwaves.Thinking about different arm motions,such as waving ormaking a fist,creates different brainwave patterns.An artificial intelligence,or AI,systemtranslates thosebrainwave patterns to move the robotic arm.The aI system had to be trained to translate those brainwaves.Ben gathered brainwave datafrom volunteers at his school and in his family."From those participants,I collected maybe anhour or two of brainwave activity,"he says."That's thousands of data points."Studying those datahelped the AI system learn to read minds.In early tests,Ben said that his robotic arm has proved to be as smart as the world's bestbrain-controlled prostheses.What he said needs to be confirmed in a clinical trial.But if it holdsup,this bionic arm could be a game-changer for prosthetic technology.24.What caused Ben Choi to make the artificial arm?A.The drawbacks of existing prostheses.B.The potential business value of prostheses.C.His urgent demand for cheaper prostheses.D.His interest in artificial intelligence systems25.What does the underlined word "non-invasive"in Paragraph 2 mean?A.Not sensitive.B.Not standard.C.Not traditional.D.Not hurtful.26.Why did Ben gather brainwave data?A.To help the AI system to understand brainwaves.B.To analyze the different functions of brainwaves.C.To identify individual differences in brainwaves.D.To offer proper service to different disabled people.27.What can be learned about Ben's robotic arm in the last paragraph?A.It needs to be further tested.B.It has been widely used worldwideC.It is not as smart as Ben expected.D.It is a game changer for prosthetic techWildflower meadows are beautiful;so beautiful in fact that a village in Britain has found theyact as natural speed traps from motorists slowing down to look at them.The village of Long Newnton in Gloucestershire has a problem with fast-moving trafficbetween nearby towns.Almost all drivers moving through areas they frequent will break postedspeed limits,and neither a 30 mile per hour limit,nor warning signs made any difference.Officials first planted flowers along the roadside during the pandemic to help improvebiodiversity.But they noticed that as well as attracting more wildlife,motorists also slowed downwhen they passed the flowers.The village,between Tetbury and Malmesbury,has traffic regularlytravelling between them,and the small parish council(教区行政机构)receives limited fundsfrom the government for traffic control measures.Putting two and two together,the village is now relying on its flowers to do the work that theroad signs could not,paying for the blooms with crowdfunding()in the village.Why exactly people slow down isn't entirely clear."Evidence has shown that if youintroduce things like wildflowers,drivers will slow down because they feel like they're cominginto somewhere that's looked after,"said Jenny Forde,cabinet member for health and wellbeing atCotswold District Council.A crowdfunding campaign has raised almost f8,000 for traffic-calmingmeasures,which will be used to fund a three-year care program for the wildflowers.A sign that flashes and records data when people are breaking the 30 mph (48 kmph)speedlimit was also fixed by the council.According to the data,90%of motorists drive below the speedlimit.It goes to show that something the homeschooling revolution in America is getting right