Biomassenergy(生物能).oftenforgottenasapromisingalternative(替代物)tooilreceiveditsdayinthesunwiththegatheringoftheBio-EnergyWorldCongressandExpositioninAtlantaGeorgialateinApril1990.Nearly1700
Biomassenergy(生物能).oftenforgottenasapromisingalternative(替代物)tooilreceiveditsdayinthesunwiththegatheringoftheBio-EnergyWorldCongressandExpositioninAtlantaGeorgialateinApril1990.Nearly1700scientistsbusinessmenandpolicy-makersone-quarterfromtheforeignnationsgatheredforaweektodiscussvariousmeansofsqueezingusableenergyoutoftreescropsmanureseaweedalgaeandurbanwaste.BiomassintheUnitedStatescontributes2.5percentofthetotalsupplybutthisamountcanbedoubledby2000andthendoubledagainbytheyear2010.
EightpercentofSweden’senergysupplyforexampleispresentlycomingfromwoodbarkandpulpremainingsSwedenintendstoraisethispercentagebymoreintensiveharvestingofwastefoodlyingaroundinforestsandthroughtheplantingofso-calledenergyforestsoffast-growingtreessuchaswillowandbirch.
Brazilisfrequentlypointedtoasanationwithamajorsuccessfulinvestment(投资)inenergycomingfromgrains:itpresentlyruns330000automobilesonawaterandalcohol(酒精)mixturereplacing10percentofitspreviousoilsupply.Brazilianrepresentatives(代表)attheconferencesaidtheywishtodoublethisinfiveyearswithafinalgoaloftotalreplacement.Mostofthecarsarebuiltatthefactorytousethemixturewhileoldermodelsarechangedthroughlow-costgovernmentprograms.
4.InLine2thephrasereceiveditsdayinthesunmostprobablymeans________.
A.cametothepublicmind B.haditsturninthesunlight
C.wasregardedasasolarenergy D.camefromtheenergyofthesun
5.Whichofthefollowingstatementsissupportedbythepassage?
A.1700scientistsattendedtheconference.
B.AquarterofAmericanbusinessmenwerepresentattheconference.
C.Foreignpolicy-makersaccountedforaquarter.
D.Three-quartersoftherepresentativeswerefromtheU.S.
6.Ofthetotalsupplyin2010biomassintheU.S.willbe________.
A.5% B.20% C.10% D.15%
7.Whichofthefollowingisnotregardedasbiomassenergy?
A.Willowandseaweed. B.Woodandgrains.