2024年高考英语一轮复习Unit17Laughter单元主题语篇训练三含解析北师大版选修6.doc

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Unit17单元主题语篇训练

Ⅰ.阅读理解

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AChinesecompanysaysithascreatedanewfacialrecognitionsystemthatcanidentifypeopleeveniftheyarewearingmasks.

EngineersattheBeijing-basedHanwangTechnologyLtd.saytheirsystemisthefirsttobecreatedtoeffectivelyidentifypeoplewearingfacemasks.Ateamof20peoplebuiltthesysteminaboutamonth.Thesystemisbasedonexistingtechnologiesdevelopedoverthepast10years.Theprocessinvolvedaddingacollectionofabout6millionunmaskedfacesandamuchsmallercollectionofmaskedfaces.

Hanwangisnowsellingtwomainkindsofproductsthatusethenewtechnology.Oneperforms“singlechannel”recognition,whichisdesignedtobeusedattheentrancestobuildings.Theotherproductisa“multi-channel”recognitionsystemthatusesgroupsofsurveillancecameras(监控摄像头)．

“Whenwearingamask,therecognitionratecanreachabout95percent,whichcanensurethatmostpeoplecanbeidentified，”saidHuangLei,Hanwangsvicepresident.Headdedthatthesystemssuccessrateforpeoplenotwearingamaskisabout99.5percent.

HuangsaidHanwangstechnologycanbeusedtoidentifyandtrackpeopleastheymoveabout.Headdedthesystemcanidentifycrimesuspects,terroristsormakereportsorwarnings.

However,thenewsystemstrugglestoidentifypeoplewearingbothamaskandsunglasses.“Inthissituation,allofthekeyfacialinformationislost.Insuchcasesrecognitionistough，”Huangsaid.

Itwasnotimmediatelyclearhowpeoplewerereactingtothenewtechnology.Whilesomehaveexpressedoppositiontosuchtools,manyothersseemtohaveshowedinterestinthenewsystemandaccepteditasawaytodealwiththecurrenthealthemergency—thespreadofthenovelcoronavirus(新型冠状病毒)．Huangsaysheseestheinterestlikelyexpandingiftheviruscontinuestospreadandtheuseoffacemasksincreases.

语篇解读：本文是一篇新闻报道。文章主要介绍了北京汉王科技有限公司研发的一种新的面部识别系统，该系统能够有效识别戴口罩的人。

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