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1、考点规范练32(选修7 Unit2)Ⅰ.阅读理解ARobotshaveprovenveryusefulindifferentsituations.Butthoserobotsaresmallremote-controlledtankswithamechanicalarm,andtheycangethunguponnarrowstairwells(楼梯井)andarestoppedbyladders.“Alotoftheplaceswhereyoudodisasterrecoveryareonlyaccessibleforpeople,”saysMa
2、rcRaibert,thepresidentofBostonDynamics,whichisprovidingadviceandhelpforDefenseAdvancedResearchProjectsAgency(DARPA)—thescientificresearchdepartmentoftheU.S.military(军队)—tocreatethemostadvancedrobotsonearth.“Ifyou’reahumanoid—amachineorcreaturewiththeappearanceandqualitiesofahu
3、man—accesscanbeincreasedandyoucanuseavailabletools.”InthefutureDARPAhopes,ahumanoidrobotwillbeabletodrivetrucks,andenterpowerplants.Thatfutureisalongwayoff.Simplemovementslikesquatting(蹲)arealmostimpossibleforsomethingwithmetalpartsandskinthatcannotbend,saysRaibert.Still,recen
4、tprogressisimpressiveenoughthatthemilitaryhasbeguntobetonleggedbots.TheOfficeofNavalResearchisworkingwithVirginiaTechonahumanoidfirefightingrobot,andDynamicsshowedofftwoofitslatestprojects:Cheetah,afour-leggedrobotcapableofrunning28milesperhour,andtheLeggedSquadSupportSystem,a
5、bigandawkwardheadlessrobotfundedbyDARPAandtheMarineCorpstohelpcarrythingsinplaceslikemountainareas.“Halfthelandonearthistoorough,sandy,orrockyforwheeledthings,”saysRaibert.“Humansandanimalscangotothoseplaces.Theyaretheonlyexamplesofsuccessfulsystemsthatdowhatwe’retryingtodo.”N
6、oneofthewalkingrobotsismeanttofight.They’redesignedtoputoutfiresandcleanupindustrialaccidents.Buttheyareallfundedbythemilitary.“I’mwellawareofhowtheworldworks,”saysDennisHong,foundingdirectorofVirginiaTech’sroboticslab.“Robotsformearetoolstohelpsociety,nottofightinwars.Butonce
7、atechnologyleavesourlab,there’snowaytocontrolhowpeoplecanuseit.”1.InMarcRailbert’sopinion,robotsneedtobedesignedlikehumansto . A.accomplishcomplextasksB.becontrolledefficientlyC.survivedisastersD.appearfriendly2.WhichofthefollowingismostlikelytobeCheetah?3.Theunderlinedword“
8、They”inParagraph3mostprobablyrefersto . A.CheetahandtheLegg