题目内容:
Questions25to28arebasedonthefollowingpassage: Therearerobotsallaroundus,Somedoverycomplicatedjobslikeflyingairplanesanddrivingsubwaytrains。Andsomedoasimplejob. Whenanautomaticwashingmachineisswitchedon,waterpoursin.Themachinewaitsuntilthewaterishotbeforewashingtheclothes.Itdoesthisby“feedback.”Information aboutWhatishappeningis“feedback”intotherobottote11itwhattodonext. Oureyes,earsandothersensesareourfeedback.Theytelluswhatisgoingonaroundus.Sorobotsarelikepeopleintwoways,Theyworkandtheyhavefeedback. Therearerobotsallaround,makingourliveseasier.Someofthem,likethepocketcalculator,canworkmuchmorequick1ythanhumanbeingscan.Andtheyrarelymakemistakes. Insomewaysrobotsarebetterthanpeople.Theyworkquick1y,butdonotmakemistakes,Theydonotgetboreddoingthesamejoboverandoveragain。Andtheynevergettired. Robotsareveryusefulinfactories.Theycanbetaughttodomanydifferentjobs.Firsttheirelectronicbrainsmustbeshownhowthejobisdone.Apersonmovestherobot’s“arm”and“hand”througheachpartofthejob.Therobot’sbrainrememberseachmove。Whentherobotisputtoworkonitsown,itsbraincontrolstherods,wheelsandmotorswhichmoveitsarm. Whentherobotisneededforanewjob,itselectronicmemoryis“wipedclean.”Thenitistaughthowtodoitsnewtask. Iftherobot’shandstopsworking,orifsomethinggetsintheway,itcannotdothenextpartofthejob.Soitstopsandsignalsforhelp,Thenahumanengineerrepairsit. Themost“intelligent”robotscanmoveandsee.Theireyesarecameras.Theirmetalfingerscanfeelshapesandevenfindouthowhotandcoldobjectsare.Theserobotshavecomputerbrains,linkedtotheireyesandfingers,whichcontroltheiractions. 25.Inthisstorytheauthortellsusthat______________. A.therearevervfewrO6ots B.weseerobotsonlyatcertaintines C.robot5aresomethingnewinourlife D.ro6otsareallaroundus
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