sometimes, the simplest ideas are the best. for example阅读答案

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1、Sometimes,thesimplestideasarethebest.Forexample阅读答案　　Sometimes,thesimplestideasarethebest.Forexample,toabsorbheatfromthesuntoheatwater,youneedlarge,flat,blacksurfaces.Onewaytodothatistobuildthosesurfacesspecially,ontheroofsofbuildings.Butwhygotoallthattroublewhencitie

2、sarerubofblacksurfacesalready,intheformofasphalt（柏油）roads?　　Tenyearsago,thisthoughtcameintothemindofAriandeBondt,aDutchengineer.Hefinallypersuadedhisbosstofollowitup.Theresultisthattheirbuildingisnowheatedinwinterandcooledinsummerbyasystemthatreliesonthesurfaceofthero

3、adoutside.　　Theheat-colleetorisasystemofconnectedwaterpipes.Mostofthemranfromonesideofthestreettotheother,justundertheasphaltroad.Some,however,divedeepintotheground.　　Whenthestreetsurfacegetshotinsummer,waterpumpedthroughthepipespicksupthisheatandtakesitundergroundthr

4、oughoneofthedivingpipes.Atadepthof100metresliesanaturalaquifer（蓄水层）intowhichseveralheatexchangers（交换器）havebeenbuilt.Thehotwaterfromthestreetrunsthroughtheseexchangers,warningtheground-water,beforereturningtothesurfacethroughanotherpipe.Theaquiferisthususedasaheatstore

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

6、　　64.Whichofthefollowingistrueaccordingtothefirsttwoparagraphs?　　A.AriandeBondtgothisideafromhisboss.　　B.Large,flat,blacksurfacesneedtobebuiltincities.　　C.TheDutchengineer’ssystemhasbeenwidelyused.　　D.Heatcanalsobecollectedfromasphaltroads.　　【答案】D　　【解析】第一段最后一句话点明了主题,第

7、二段是介绍它的来历.　　65.Forwhatpurposearethedivingpipesused?　　A.Toabsorbheatfromthesun.　　B.Tostoreheatforfutureuse.　　C.Toturnsolarenergyintoheatenergy.　　D.Tocarryheatdownbelowthesurface.　　【答案】D　　【解析】从第四段的叙述中可知答案.　　66.Fromthelastparagraphwecanlearnthat__　　A.somepipeshavetobere-

8、arrangedinwinter　　B.thesystemcandomorethanwarmingupthebuilding　　C.theexchangerswillpickupheatfromthestreetsurface　　D.lesshea