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.com选择性必修第三册Unit4AglimpseofthefutureⅠ.阅读理解A(★)ArobotcreatedatStandfordUniversityisdivingdowntoshipwrecks(沉船)inawaythathumanscan’tdo.KnownasOceanOneK,therobotallowsitsoperatorstofeellikethey’reunderwaterexplorers,too.OceanOneKresembles(像)ahumandiverfromthefront,witharms,handsandeyesthatcapturetheunderwaterworldinfullcolor.Thebackoftherobothascomputersandeightmultidirectionalthrusters(推进器)thathelpitcarefullyexplorethesitesoffragileshipwrecks.Whenanoperatorattheocean’ssurfaceusescontrolstodirectOceanOneK,therobot’stouch-basedfeedbacksystemcausesthepersontofeelthewater’sresistance.TheideaforOceanOneKcamefromadesiretostudycoralreefsintheRedSeaatdepthsbeyondthenormalrangefordivers.WhileOceanOneKwasdesignedtoreachmaximumdepthsof656feet,researchershadanewgoal:1kilometer,hencethenewnameforOceanOneK.Theresearcherschangedtherobot’sbodybyusingspecialfoamtoincreasebuoyancy(浮力)andfightthepressureof1,000metersmorethan100timeswhathumansexperienceatsealevel.OceanOneKalsogottwonewtypesofhandsandincreasedarmandheadmotion.DuringOceanOneK’sdeepdiveinFebruary,teammembersdiscoveredtherobotcouldn’trisewhentheystoppedforathrustercheck.Flotationsonthecommunicationsandpowerlinehadcollapsed,causingthelinetopileonthetopoftherobot.OceanOneK’sdescentwasasuccess.Itdroppedoffamemorialmarkerontheseabedthatreads,“Arobot’sfirsttouchofthedeepseafloor—Avastnewworldforhumanstoexplore.”Khatib,aprofessor,calledtheexperiencean“incrediblejourney”.“Thisisthefirsttimethatarobothasbeencapableofgoingtosuchadepth,interactingwiththeenvironment,andpermittingthehumanoperatortofeelthatenvironment,”hesaid.1.WhatcanwelearnaboutOceanOneK?A.Itseyesarecolorful.B.Itfunctionsautomatically.C.Itlookslikeitsoperatorfromthefront.D.Itisremotelycontrolledtoexploreunderwater.2.Howdoestheauthordevelopthethirdparagraph?A.Bylistingdata.B.Byraisingquestions.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.comC.Byreasoningandanalyzing.D.Bypresentinganargument.3.Whatdoestheunderlinedword“descent”meaninthelastparagraph?A.Successfuloperation.B.Deepdiving.C.Pressureresistance.D.Flexibleexploration.4.Whatisasuitabletitleforthetext?A.ACreativeExplorerB.TheAmbitiousExplorationC.ASelf-DrivenSeeker—ARobotD.ADeep-SeaExplorer—OceanOneKB(★)Geo-trackingappssuchasFindMyKidsandGoogleFamilyLinkarefastgrowinginpopularity,handingparentspowerstomonitortheirchildren.Buthowarethelatterexperiencingwhatpreviousgenerationsmighthavelabelledasaninvasionoftheirprivacy?Couldthesedevicesevenhurtyouths’senseofindependence?Wesetouttoanswerthesequestionsinourresearch,whichinvolvedaseriesofone-on-oneinterviewswithparentswhogeo-trackedtheirchildren,andteenagerswhoweregeo-tracked.Overall,theparentswhotookpartinoursurveyclaimedtheyweredriventousetheseappsnotbynosiness(多管闲事),butasenseofcareinthefaceofwhattheyperceivedasdangerousoruncertainenvironments.Knowingachild’sgeographicalpositioncannotguaranteetheirsafetywhenfacedwithanincidentinrealtime,butcheckingwheretheyarecanhelpeaseparentalfears.Otherparentssurveyedadmittedtomonitoringtheirchildrenonlyinthecaseofuna...