阅读理解。

Parentsandkidstodaydressalikelistentothesamemusicandarefriends.Isthisagoodthing?

SometimeswhenMr.Ballmerandhis16-year-olddaughterElizabethlistentorockmusictogetherandtalk

aboutinterestsbothenjoysuchaspopcultureheremembershismoredistantrelationshipwithhisparents

whenhewasateenager.

"Iwouldneverhavesaidtomymom'HeythenewWeezeralbumisreallygreat.Howdoyoulikeit?'"

saysBallmer."Therewasjustacompletegapintaste."

Musicwasnottheonlygulf.Fromclothingandhairstylestoactivitiesandexpectationsearliergenerations

ofparentsandchildrenoftenappearedtomoveinseparateorbits.

Todaythegenerationgaphasnotdisappearedbutitisgettingnarrowinmanyfamilies.Conversationson

subjectssuchassexanddrugswouldnothavetakenplaceagenerationago.Nowtheyarecomfortableand

common.Andparent-childactivitiesfromshoppingtosportsinvolveafeelingoftrustandfriendshipthatcan

continueintoadulthood.

Nowondergreetingcardstodaycarrythemessage"Tomymothermybestfriend."

Butfamilyexpertswarnthatthenewequalitycanalsoresultinlessrespectforparents.

"There'sstillalotofstrictnessandauthorityonthepartofparentsouttherebutthereisachange

happening"saysKerrieapsychologyprofessoratLebanonValleyCollege."Inthemiddleofthatchangethere

isalotofconfusionamongparents."

Familyresearchersofferavarietyofreasonsfortheseevolvingrolesandattitudes.Theyseethe1960sas

aturningpoint.Greatculturalchangesledtomoreopencommunicationandamoredemocraticprocessthat

encourageseveryonetohaveasay.

"Myparentswereonthe'before'sideofthatchangebuttoday'sparentsthe40-year-oldswereonthe

'after'side"explainsMr.Ballmer."It'snotsomethingeasilyaccomplishedbyparentsthesedaysbecauselife

ismoredifficulttounderstandordealwithbutsharinginterestsdoesmakeitmorefuntobeaparentnow."

1.Theunderlinedword"gulf"inPara.3mostprobablymeans_____.

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A.