阅读理解the oldest and most common source(来源) of renewable energy known to man答案

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1、阅读理解Theoldestandmostcommonsource(来源)ofrenewableenergyknowntoman答案　　阅读理解Theoldestandmostcommonsource(来源)ofrenewableenergyknowntoman,biomassisoneofthemostimportantformsofenergyproductionintheUnitedStatesandelsewhere.Sincesuchawidevarietyofbiomassmaterialsiseverywhere–fromtreesa

2、ndgrassestoagriculturalandcity-lifewastes-biomasspromisestoplayacontinuingroleinprovidingpowerandheatformillionsofpeoplearoundtheworld.　　AccordingtotheUnionofConcernedScientists(UCS),biomassisakindofrenewableenergysourcethatproducesnocarbondioxide(二氧化碳),becausetheenergyitcont

3、ainscomesfromthesun.Whenplantmatterisburned,itgivesoffthesun’senergy.Inthisway,biomassservesasasortofnaturalbattery(电池)forstoringthesun’senergy.Aslongasbiomassisproducedcontinuously–withonlyasmuchgrownasisused–the“battery”lastsforever.　　AccordingtotheEnergyInformationAdminist

4、ration,biomasshasbeenoneoftheleadingrenewableenergysourcesintheUnitedStatesforseveralyearsrunningthrough2007,makingupbetweenandpercentofthenation’stotalelectricitysupply.In2008—althoughthenumbersaren’tallinyet–windpowerprobablytookoverfirstplacebecauseoftherapiddevelopmentofw

5、indfarmsacrossthecountry.　　Producingpowerfrombiomasshelpsreducesome11milliontonsofcarbondioxideeachyear.Somehomeownersalsotrytomaketheirownheatbyusingbiomassmaterials.Suchpracticemaysavehomeowners’money,butitalsoproducesalotofpollution.So,thebestwayistoencouragepowerplantstou

6、seit.　　72.Whyisbiomassconsideredas“asortofnaturalbattery”　　A.Itburnsmerelyplantmatter.B.Itkeepsproducingelectricity.　　C.Itstorestheenergyfromthesun.D.Itproduceszerocarbondioxide.　　73.Welearnfromthetextthatin2008.　　A.windpowerwouldbetheleaderofnewableenergyB.therewasarapidgrow

7、thofelectricityproduction　　C.biomassmightbecomethemainenergysourceD.~%ofpowersupplycamefrombiomass　　74.Whydoestheauthorencouragepowerplantstousebiomass　　A.Topreventthewasteofenergy.B.Toincreaseproductionsafety.　　C.Toreducepollution.D.Tosavemoney.　　75.Wheredoesthetextprobablyc

8、omefrom　　A.Aresearchplan.B.Asciencemagazine.C.Abookreview.D.Abusines