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注意emundeete forNowmofhas decipered()of the ver -ye lterh pningThe chain of events leading to this technoloy began in 2015 when MIT expert Jan Dambrogio got a callro Daniel Stara Smther KingCollege London.HeedWhat ouyou do ftold you there was a trunk with60unopenedte?The trunk had once belonged to 17th-century postmaster Simon de Brienne.Historians believe the postfehendeliveredtr Thatbeausein the7hcet the eipnhe sedrhobore the postage cost.When Brienne died in 1707,he donated the trunk of letters to an orphanage.Somchow,the trunk evently made its way to the postal museum,where it lay until recently.Since opening the letterswould destroy them,Dambrogio and her team decided to develop technologytoal them virtually.They began by using a high-resolution X-rayser tocreatea detailed three-dimen-sional image of a sealed letter.While the writing inside showed up very clearly,the numerous layers of foldedpaper pressed close together caused the words to overlap().To solve the issue,the researchers created sophisticated algorithm()capable of deciphering theritingin the cleverly folded letter,crease by crease.The virtual opening allowed the team to read the contentswhile preserving letter locking evidence."The algorithm took almost five years to perfeet.Once perfected,they used it to open four locked letters and fully decode()the one from Sennacques.24.What can we learn from the first paragraph?A.Quite a few people could write letters.B.Envelopes were not invented in 1697C.Jacques Sennacques was a postmaster.D.Researchers couldn't figure out the letter25.Why did the post office store the undelivered letters?A.To get paid.B.To find the senders.C.To save the cost.D.To scan the letters.26.We can conclude that the folded lettersA.were badly damagedB.were all decodedC.remained very freshD.were very fragile27.How did the researchers decode the letter from Sennacques?A.Physically.B.Chemically.C.Occasionally.D.DigitallyCThe annoying persons walking down the street with their heads buried in their cellphones-sometimesyou could be one of them-are not just slowing themselves down.They are also damaging other people'sability to move quickly and efficiently(有效地),according to a new study.Like flocks of birds or schools of fish,human crowds self-organize to move safely and efficiently.But suchefficiency is only possible when people can anticipate others'moves so that they can adjust their own move-Totest how a phone tapper might mess with this flow,scientists set up a straight passage ona closed-offments accordingly.street for two groups of 27 pedestrians to walk down in opposite directions.They tracked each person's path oftravel,measured how fast these walkers were moving,and calculated the groups'order parameter,whichmeasures where and when straight lanes()formed.The researchers also tasked three participants in onegroup with typing on their phones as they walked,and ran three different experimental conditions where theparticipants using cellphones were in front,middle or back of their walking group.Such is what happened with the inattentive individuals in front:Lanes both behind and opposite themdeveloped slowly and-when compared with the middle and back positions-several seconds later than theywould have if all pedestrians were alert(警觉的).As expected,phoneuser had rouble making predictions about the movements of others because they02022年全国联考精选卷(二)·英语第4页(共8页)。2022.03.0121:26
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