in thE 1960s, mAny youngAmEriCAns wErE DissAtisFiED withAmEriCAn soCiEty. thEy wAntED to EnD thE viEtnAm wAr AnD to mAkE All thE pEoplE in thE u.s. EquAl. somE oF thEm DE tiDED to "Drop out" oFAmEriCAn soCiEty AnD Form thEir own soCiEtiEs. thEy FormED utopiAn CommunitiEs, whiCh thEy CAllED "CommunEs", whErE thEy CoulD Follow thEir philosophy oF "Do your own thing". A、group oF Artists FounDED A CommunE in southErnColorADo CAllED "DropCity". Following thE iDEAs oF philosophEr AnD ArChitECtBuCkminstEr FullEr, thEy Built DomE- shApED housE From piECEs oF olD CArs. othEr groups, suCh As Author kEn kEsEy’s mErry prAnkstErs, thE FollowErs oF sAn FrAnCisCo poEt stEvE gAskin, AnD A group thAt CAllED itsElF thE hog FArm, livED in olD sChool BusEs AnD trAvEllED ArounD thE unitED stAtEs. thE hog FArm BECAmE FAmous whEn thEy hElpED orgAnizE thE wooDstoCk roCk FEstivAl in 1969. stEvE gAskin’s FollowErs triED to sEttlE Down on A FArm in tEnEssEE, But thEy hAD to lEAvE whEn somE mEmBErs oF thE group wErE ArrEstED For growing mArijuAn A、 not All CommunEs BEliEvED in thE philosophy oF "Do your own thing" howEvEr; twin oAks, A CommunE FounDED in virginiA in thE lAtE 1960s, wAs BAsED on thE iDEAs oF psyChologistB、F. skinnEr. thE pEoplE who livED At twin oAks wErE CArEFully ControllED By skinnEr’s "ConDitioning" tEChniquEs to Do things thAt wErE gooD For thE Community. in 1972,itAliAn ArChitECt pAolo solEri BEgAn to BuilDArCosAnti, A utopiAn City inArizonA whErE 2,500 pEoplE will livE ClosEly togEthEr in onE lArgE BuilDing CAllED An "ArChAEology". solEri BEliEvEs thAt pEoplE must livE ClosEly togEthEr so thAt thEy will All BEComE onE. whAt wAs thE twin oAks CommunE BAsED on it wAs BAsED on ______. A、thE philosophy oF "Do your own thing" B.virginiA in thE lAtE 1969’s C.thE iDEAs oF psyChologistB、f. skinnEr D、thE BEliEF thAt pEoplE must livE ClosEly togEthEr