题目内容：
Questionsarebasedonthefollowingpassage. InthevillagesoftheEnglishcountrysidetherearestillpeoplewhorememberthegoodolddayswhennoonebotheredtolocktheirdoors.Theresimplywasn’tanycrimetoworryabout.
Amazingly,thesehappytimesappearstilltobewithusintheworld’sbiggestcommunity.AnewstudybyDanFarmer,agiftedprogrammer,usinganautomatedinvestigativeprogramofhisowncalledSATAN,showsthattheownersofwelloverhalfofallWorldWideWebsiteshavesetuphomewithoutfittinglockstotheirdoors.
SATANcantryoutavarietyofwell-knownhacking（黑客的）tricksonanInternetsitewithoutactuallybreakingin.Farmerhasmadetheprogrampubliclyavailable,amidmuchcriticism.Apersonwithevilintentcoulduseittohuntdownsitesthatareeasytoburgle（闯入…...行窃）.
ButFarmerisveryconcernedabouttheneedtoalertthepublictopoorsecurityand,sofar,eventshaveprovedhimright.SATANhasdonemoretoalertpeopletotherisksthancausenewdisorder.SoistheNetbecomingmoresecure?Farfromit.Intheearlydays,whenyouvisitedaWebsiteyourbrowsersimplylookedatthecontent.NowtheWebisfulloftinyprogramsthatautomaticallydownloadwhenyoulookataWebpage,andrunonyourownmachine.Theseprogramscould,iftheirauthorswished,doallkindsofnastythingstoyourcomputer.
Atthesametime,theNetisincreasinglypopulatedwithspiders,worms,agentsandothertypesofautomatedbeastsdesignedtopenetratethesitesandseekoutandclassifyinformation.Allthesemakewonder
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