Acloserobserverofthesmallscreenoncecalledita“vastwastelandofviol

Acloserobserverofthesmallscreenoncecalledita“vastwastelandofviolence,sadismandmurder,privateeyes,gangstersandmoreviolence-andcartoons.”ThatishowNewtonMinow,aUStelevisionregulator,describeditin1961. 　　Sincethantelevisionlanguagehasbecomemorecolourful,violencemoreexplicitandsexmoreprevalent.?LadyChatterley’sLoverhasmovedfromthebannedbookshelftoaclassicBBCserial. 　　Concernoversuchchangingstandardshasshapedourviewoftelevision—andmaskeditsbroaderinfluenceindevelopingcountries. 　　Toillustrateitseffects,KennycitesthecaseofBrazil.Whentelevisiontherebegantoshowasteadydietoflocalsoapsinthe1970s,Brazilianwomentypicallyhadfiveormorechildrenandweretrappedinpoverty.Asthepopularityofthesoapsgrew,birthratesfell 　　Accordingtoresearchers,72%oftheleadingfemalecharactersinthemainsoapshadnochildrenandonly7%hadmorethanone.Onestudycalculatedthatsuchsoapshadthesameeffectonfertilityratesaskeepinggirlsinschoolforfiveyearsmorethannormal. 　　Itisnotjustbirthratesthatareaffected.Kennynotes:“KidswhowatchTVoutofschool,accordingtoaWorldBanksurveyofyoungpeopleintheshantytownsofFortalezainBrazil,areconsiderablylesslikelytoconsumedrugs.” 　　TelevisionappearstohavemorepowertoreduceyouthdrugusethanthestricturesofaneducatedmotherandBraziliansoapspresentingeducatedurbanwomanrunningtheirownbusinessesarethoughttobecompellingrolemodels. 　　Televisioncanalsoimprovehealth,InGhanaasoapoperalinethatwarnedmotherstheywerefeedingtheirchildren“morethanjustrice”iftheydidnotwashtheirhandsafterdefecatingwasfollowedbyaseeminglypermanentimprovementinpersonalhygiene. 　　Whydosuchchangeshappen?Simple,saysKenny:soapoperas,whetherlocalversionsofUglyBettyorvintageimportsofBaywatch,openupnewhorizons.“Somehourscouldhebetterspoutplantingtrees,helpingoldladiesacrosstheroadorplayingcricket,”hesaid.“ButwatchingTVexposespeopletonewideasanddifferentpeople.Withthatwillcomegreateropportunity,growingequalityandabetterunderstandingoftheworld.Notbad.” Whatisthemeaningof“mask”inthethirdparagraph?

A.suggest

B.cover

C.discover

D.reveal

正确答案是B