小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com课时作业(十二)Unit4SectionⅢExtendedreading&Project阅读理解ASelf－drivingcarsaresopopularthattheUniversityofMichiganhasevenestablishedatowncalledMcitytoallowcarmanufacturerstosafelytesttheirautonomouscars.WhileMcitycanbeusedtosimulate(模拟)manyreal－liferoadconditions,itcannothelptestgesturesdriversusetocommunicatetheirintentiontootherdrivers,pedestriansorcyclists.Tofindasolution,theUScarmanufacturerFord,withresearchersfromVirginiaTech,firstlyconsideredusingtextasawaytocommunicatethecar'sintention,butdecideditwouldprobablynotworkuniversally.Theoptionofusingsymbolswasalsodiscarded，becauseresearchshowedthatthemajorityofpeopledidnothaveagoodunderstandingofwhattheymeant.Finally,theresearcherssettledonlightsignals.Awhitelightwarnedthattherewerenohumansinthecar.Aslowblinkingoneindicatedthatthecarwascomingtoastop,whilearapidlyflashinglightcautionedpassersbythatthecarwasabouttoaccelerate.Thencamethebigchallenge—testingthesignalsontherealroad.“Weneedtotryoutthisnewlightingtocommunicatetheintentionofthevehicle,butifyou'vegotadriverbehindtheseat,youstillhavenaturalcommunicationbetweenhumans，”saidAndyShaudt,wholedtheVirginiaTechresearchteam.“Soweneedtomakeitlooklikeadriverlesscar.”Theteamdesignedacarseatcostume(服装)thatthedriverwouldweartocoverhisorherfaceandupperbody.Ofcourse,thedrivercouldseeveryclearly.Theresearchersthenequippedthecarwithcamerastocapturehumanreactionstoalightbaronthewindshield(挡风玻璃),whichflashedoneofthethreesignalswhenappropriate.Sixdrivers,allkeepingtheirhandslowonthewheelsoasnottobedetected,tookturnstotestdrivingthecarthroughthebusystreets.Theoverallreactiontotheflashinglightswasveryencouraging.WhoknewcostumescouldbeusefulformorethanHalloween?1．Whatdidtheteamconsiderusingasawaytocommunicatethecar'sintention?A．Light.B．Language.C．Symbols.D．Sound.2．Whatdoestheunderlinedword“they”inthesecondparagraphreferto?A．Symbols.B．Drivers.C．Researchers.D．Flashes.3．Thecarseatcostumewasintendedto________．A．amusethedriversB．attractthepedestriansC．warnthecyclistsD．confusethepeopleBSelf－drivingcarsarejustaroundthecorner.Suchvehicleswillmakegettingfromoneplacetoanothersaferandlessstressful.Theyalsocouldcutdownontraffic,reducepollutionandlimitaccidents.Buthowshoulddriverlesscarshandleemergencies?Peopledisagreeontheanswer.And小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comthatmightputabrakeonthis,anewstudyconcludes.Tounderstandthechallenge,imagineacarthatsuddenlymeetssomepedestrians(行人)intheroad.Evenwithbraking,it'stoolatetoavoidacrash.Sothecar'sartificialintelligencemustdecidewhethertoswerve(急转弯).Tosavethepedestrians,shouldthecarswerveofftheroadorswerveintooncomingtraffic?Whatifsuchoptionswouldlikelykillthecar'sdriver?Researchersusedonlinesurveystostudypeople'sattitudestowardssuchsituationswithdriverlesscars.Surveyparticipantsmostlyagreedthatautomatedcarsshouldbedesignedtoprotectthemostpeople.Butthere'sadilemma(困境).Thosesamesurveyedpeoplewanttorideincarsthatprotectpassengersatallcosts—evenifthepedestrianswouldendupdying.Makersofcomputerizedcarsareinatoughspot,Bonnefon'sgroupwarns.Mostbuyerswouldwanttheircarstobeprogrammedtoprotecttheminpreferencetootherpeople.However,regulationsmigh...