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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