高考英语一轮复习 第1编 话题三 Book 5 Unit 5 First aid课时作业（含解析）试题VIP免费

Unit5Firstaid课时作业Ⅰ.阅读理解(2020·湖南师大附中高三摸底考试)Sharkattacksnotonlydisturbbeachactivities,butcanaffectassociatedtouristindustries.Sharknetsareacommonsolutiontopreventingsharkattacksonbeaches,buttheycausedangerstoseaecosystems.Seekingacosteffectivewaytomonitorbeachsafetyoverlargeareas,wehavedevelopedasystemcalledSharkspotter.Itcombinesartificialintelligence(AI)computingpower,anddrone(无人机)technologytoidentifyandwarnlifesaversofsharksnearswimmers.TheprojectisacooperationbetweentheUniversityofTechnologySydneyandTheRipperGroup,whichispioneeringtheuseofdrones—called“WestpacLittleRipperLifesavers”—inthesearchandrescuemovementinAustralia.Sharkspottercandetectsharksandotherpotentialthreatsusingrealtimeaerialimagery.Thesystemanalysesvideofromacameraattachedtoadronetomonitorbeachesforsharks,sendwarnings,andconductrescues.Developedwithtechniquesknownas“deeplearning”，theSharkspottersystemreceivesimageryfromthedronecameraandattemptstoidentifyallobjectsinthescene.Oncecertainobjectsaredetected,theyareputintooneof16categories:shark,whale,dolphin,rays,differenttypesofboats,surfers,andswimmers.Ifasharkisdetected,Sharkspotterprovidesbothavisualsignonthecomputerscreenandanaudiblewarningtotheoperator.TheoperatorconfirmsthewarningandsendstextmessagesfromtheSharkspottersystemtotheSurfLifeSaversforfurtheraction.Inanemergency,thedroneisequippedwithalifesavingflotationpod(漂浮仓)togetherwithanelectronicsharkrepellent(驱逐装置)thatcanbedroppedintothewaterincaseswhereswimmersareinseveretrouble,trappedinarip,oriftherearesharkscloseby.InJanuary2018,theWestpacLittleRipperLifesaverswasusedtorescuetwoyoungswimmerscaughtinaripatLennoxHead,NSW.Thedroneflewdownthebeachsome800metersfromthelifeguardstation,andalifesavingflotationpodwasdroppedfromthedrone.Thecompleterescueoperationtook70seconds.WebelieveSharkspotterisawinwin,forbothmarine(海洋的)lifeandbeachgoers.ThisuniquetechnologycombinesdynamicvideoimageprocessingAIandadvanceddronetechnologytocreativelydealwiththeglobalchallengeofensuringsafebeaches,protectingenvironments,andpromotingtourism.篇章导读：本文是一篇说明文。文章介绍了一种旨在防御鲨鱼袭击的技术Sharkspotter的工作原理以及重要意义。1．ASharkspotteris________.A．asolutiontomonitorsharksB．anequipmenttoidentifylifesaversC．atechnologytopreventsharkattacksD．aprojecttopioneertheuseofdrones答案：C细节理解题。根据第四段前两句“如果发现鲨鱼，Sharkspotter会在电脑屏幕上显示视觉信号，并向操作员发出听觉警告。操作员确认警告，从Sharkspotter系统向冲浪救生员发出短信，以便采取进一步行动。”可知Sharkspotter是一种防止鲨鱼袭击的技术，故选C。2．Whenasharkisspottednearaswimmer,thesystemwill________.A．taketimelyactionB．analyzethevisualdataC．classifytheidentifiedobjectsD．turnon“deeplearning”mode答案：A推理判断题。根据第四段最后一句“在紧急情况下，无人机配备了一个救生漂浮仓和一个电子驱鲨器，当游泳者遇到严重麻烦，被困在裂口或附近有鲨鱼时，可以将电子驱鲨器放入水中。”可推知游泳者在遇到麻烦时，系统会及时采取行动，故选A。3．Theexampleinthe5thparagraphshowsusthatthesystemis________.A．efficientinsavinglivesB．effectiveindetectingsharksC．smartindrivingsharksawayD．practicaloverthewholeseaarea答案：A推理判断题。第五段中的例子是一个成功营救两名被困游泳者的事件，由此可推知，这个系统在拯救生命方面是有效的，故选A。4．WhatistheauthorsattitudetowardsthefutureofSharkspotter?A．Doubtful.B．Optimistic.C...