Thesharingeconomyhasgrowninrecentyearstoincludeeverythingfromapartmentsharingtocarsharingtocommunitytoolsharing．Since2009，anewformofsharingeconomyhasbeenemerginginneighborhoodsthroughouttheUSandaroundtheworld-LittleFreeLibraries．Thelibrariesareboxesplacedinneighborhoodswhereresidents（居民） cantakeoutandleavebooks．LittleFreeLibrariescomeinallshapesandsizes．Somelibrariesalsohavethemes，focusingonbooksforchildren，adults，ortourguides．

In2009，TodBolbuiltthefirstLittleFreeLibraryasagifttohismother，adevotedreader．Whenhesawthepeopleofhiscommunitygatheringaroundit，exchangingconversationsaswellasbooks，heknewhewantedtotakehissimpleideafurther．"IthinkLittleFreeLibrariesopenthedoortoconversationswewanttohavewitheachother．"Bolsaid．

Sincethen，hisideahasbecomeamovement，spreadingfromstatetostateandcountrytocountry．AccordingtoLittleFreeLibrary．org，therearenow18，000ofthelittlestructuresaroundtheworld，locatedineachofthe50USstatesand70countriesinEurope，AfricaandAsia．

TheInternethashelpedtospreadLittleFreeLibraries．ButanAtlanticarticlesaysthelittlestructuresserveasacureforaworldofe-readerdownloads．Thelittlewoodenboxesarerefreshinglyphysicalandhuman．Formanypeople，thesenseofdiscoveryisLittleFreeLibraries'mainappeal．"Agirlwalkinghomefromschoolmightpickupagraphicnovelthatgetsherexcitedaboutreading； amanonhiswaytothebusstopmightfindavolumeofpoetrythatchangeshisoutlookonlife，"saystheAtlanticarticle．"Everybookisapotentialsourceofinspiration．"

24．HowdoLittleFreeLibrariesgettheirbooks？___

A．Citizenssharedthem．

B．TodBoldonatedthem．

C．USgovernmentprovidedthem．

D．Thecommunitiesboughtthem．

25．WhydidTodBolwanttobuildmoreLittleFreeLibraries？___

A．Hewantedtopromotehisideaworldwide．

B．Hewasinspiredbythesharingeconomy．

C．Theycanofferneighborsmorechancestotalk．

D．Theyareagifttopleasehismother．

26．AccordingtotheAtlanticarticle，LittleFreeLibraries___．