阅读理解Thehumanbraincontains10thousandmillioncellsandeachofthesemayhaveathousandconnections.Suchenormousnumbersusedtodiscourageusandeaseustodismissthepossibilityofmakingamachinewithhuman-likeab

　　阅读理解

　　Thehumanbraincontains10thousandmillioncellsandeachofthesemayhaveathousandconnections.Suchenormousnumbersusedtodiscourageusandeaseustodismissthepossibilityofmakingamachinewithhuman-likeabilitybutnowthatwehavegrownusedtomovingforwardatsuchapacewecanbe

　　lesssure.Quitesooninonlyl0or20yearsperhapswewillbeabletoassembleamachineascomplex

　　asthehumanbrainandifwecanwewill.Itmaythentakeusalongtimetorenderitintelligentbyloading

　　intherightsoftwareorbyalteringthearchitecturebutthattoowillhappen.

　　Ithinkitcertainthatindecadesnotcenturiesmachinesofsilicon(硅)willarisefirsttorivalandthen

　　exceed(超越)theirhumanancestors.Oncetheyexceedustheywillbecapableoftheirowndesignina

　　realsensetheywillbeabletoreproducethemselves.Siliconwillhaveendedcarbon'slongcontrol.And

　　wewillnolongerbeabletoclaimourselvestobethefinestintelligenceintheknownuniverse.

　　Astheintelligenceofrobotsincreasestomatchthatofhumansandastheircostdeclinesthrough

　　economiesofscalewemayusethemtoexpandourfrontiersfirstonearththroughtheirabilitytowithstandenvironmentsharmfultoourselves.Thusdesertsmaybloomandtheoceanbemined.Furtheraheadbyacombinationofthegreatwealththisnewagewillbringandthetechnologyitwillprovidetheconstruction

　　ofavastman-createdworldinspacehometothousandsormillionsofpeoplewillbewithinourpower.

　　1.Inwhatwaycanwemakeamachineintelligent?

　　A.Bymakingitworkinsuchenvironmentsasdesertsoceansorspace.

　　B.Byworkinghardfor10or20years.

　　C.Byeitherproperlyprogrammingitorchangingitsstructure.

　　D.Byreproducingit.

　　2.Whatdoesthewriterthinkaboutmachineswithhuman-likeability?

　　A.Hebelievestheywillbeusefultohumanbeings.

　　B.Hebelievesthattheywillcontrolusinthefuture.

　　C.Heisnotquitesureinwhatwaytheymayinfluenceus.

　　D.Hedoesn'tconsidertheconstructionofsuchmachinespossible.

　　3.Theunderlinedword"carbon"inPara.2standsfor .