【Sometimes,thesimplestideasarethebest.Forexample,toabsorbheatfromthesuntoheatwater,youneedlarge,flat,blacksurfaces.Onewaytodothatistobuildthosesurfacesspecially,ontheroofsofbuildings.Butwhygotoallthat】

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

　　Tenyearsago,thisthoughtcameintothemindofAriandeBondt,aDutchengineer.Hefinallypersuadedhisbosstofollowitup.Theresultisthattheirbuildingisnowheatedinwinterandcooledinsummerbyasystemthatreliesonthesurfaceoftheroadoutside.

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

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

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

　　小题1:Whichofthefollowingistrueaccordingtothefirsttwoparagraphs? A．AriandeBondtgothisideafromhisboss.B．Large,flat,blacksurfacesneedtobebuiltincities.C．TheDutchengineer’ssystemhasbeenwidelyused.D．Heatcanalsobecollectedfromasphaltroads.小题2:Forwhatpurposearethedivingpipesused? A．Toabsorbheatfromthesun.B．Tostoreheatforfutureuse.C．Toturnsolarenergyintoheatenergy.D．Tocarryheatdownbelowthesurface.小题3:Fromthelastparagraphwecanlearnthat__ A．somepipeshavetobere-arrangedinwin