Thefactthatpeoplearenolongertiedtospecificplacesforfunctionssuchasstudyingorlearning，saysWilliamMitchell，aprofessorofarchitectureandcomputerscienceatMIT，meansthatthereis"ahugedropindemandfortraditional，（51）___，enclosedspaces"suchasofficesorclassrooms，andsimultaneously"ahugeriseindemandforsemi-publicspacesthatcanbeinformallyappropriatedtoad-hocworkspaces"．Thisshift，hethinks，amountstothebiggestchangein（52）___inthiscentury．Inthe20thcenturyarchitecturewasabout（53）___structures-officesforworking，cafeteriasforeating，andsoforth．Thiswasnecessarybecauseworkersneededtobenearthingssuchaslandlinephones，faxmachinesandfilingcabinets．
Thenewarchitecture，saysMrMitchell，will"makespacesintentionally（54）___"．Architectsarethinkingaboutlight，air，treesandgardens，allintheserviceofhumanconnections．Buildingswillhavemuchmorevariedshapesthanbefore（55）___，peopleworkingonlaptopsfinditcomfortingtohavetheirbackstoawall，sohybrid（混合的）spacesmaybecomecurvier，withmorenooks（角落），inorderto（56）___thesurfaceareaoftheirinnerwalls．
"This（57）___iswhatseparatessuccessfulspacesandcitiesfromunsuccessfulones，"saysAnthonyTownsend，anurbanplannerattheInstitutefortheFuture，athink-tank．Almostanypublicspacecanassumesomeofthesefeatures．Forexample，anot-for-profitorganizationinNewYorkhas（58）___BryantPark，aonceabandonedbutcharminggardeninfrontofthecity'spubliclibrary，intoahybridspacepopularwithofficeworkers．Thepark'smanagersnoticedthatalotofvisitorswereusingmobilephonesandlaptopsinthepark，sothey（59）___Wi-Fiandaddedsomechairswithfoldablelecturedesks．Theideawasnottodistractpeoplefromtheflowersbuttoletthemcustomizetheirlittlebitofthepark．
Theacademicnameforsuchspacesis"thirdplaces"，atermoriginallycoinedbythesociologistRayOldenburginhis1989book，"TheGreat，GoodPlace"．Atthetime，longbeforemobiletechnologiesbecamewidespread，MrOldenburgwantedto（60）___betweenthesociologicalfunctionsofpeople'sfirstplaces（theirhomes），theirsecondplaces（offices）an
