Sometimes，thesimplestideasaret-查字典问答网

来自董航的问题

　　Sometimes，thesimplestideasarethebest．Forexample，toabsorbheatfromthesuntoheatwater，youneedlarge，flat，blacksurfaces．Onewaytodothatistobuildthosesurfacesspecially，ontheroofsofbuildings．Butwhygotoallthattroublewhencitiesarefullofblacksurfacesalready，intheformofasphalt （柏油） roads？

　　Tenyearsago，thisthoughtcameintothemindofAriandeBondt，aDutchengineer．Hefinallypersuadedhisbosstofollowitup．Theresultisthattheirbuildingisnowheatedinwinterandcooledinsummerbyasystemthatreliesonthesurfaceoftheroadoutside．

　　Theheat-collectorisasystemofconnectedwaterpipes．Mostofthemrunfromonesideofthestreettotheother，justundertheasphaltroad．Some，however，divedeepintotheground．

　　Whenthestreetsurfacegetshotinsummer，waterpumpedthroughthepipespicksupthisheatandtakesitundergroundthroughoneofthedivingpipes．Atadepthof100metresliesanaturalaquifer （蓄水层） intowhichseveralheatexchangers （交换器） havebeenbuilt．Thehotwaterfromthestreetrunsthroughtheseexchangers，warmingtheground-water，beforereturningtothesurfacethroughanotherpipe．Theaquiferisthususedasaheatstore．

　　Inwinter，theworkingsystemischangedslightly．Waterispumpedthroughtheheatexchangerstopickuptheheatstoredduringsummer．Thiswatergoesintothebuildingandisusedtowarmtheplaceup．Afterperformingthattask，itispumpedundertheasphaltanditsremainingheatkeepstheroadfreeofsnowandice．

　　64．Whichofthefollowingistrueaccordingtothefirsttwoparagraphs？___

　　A．AriandeBondtgothisideafromhisboss．

　　B．Large，flat，blacksurfacesneedtobebuiltincities．

　　C．TheDutchengineer'ssystemhasbeenwidelyused．

　　D．Heatcanalsobecollectedfromasphaltroads．

　　65．Forwhatpurposearethedivingpipesused？___

　　A．Toabsorbheatfromthesun．

　　B．Tostoreheatforfutureuse．

　　C．Toturnsolarenergyintoheatenergy．

　　D．Tocarryheatdownbelowthesurface．

　　66．Fromthelastparagraphwecanlearnthat___

　　A．somepipeshavetobere-arrangedinwinter