[完形填空]  OffshorewindintheNorthSeaalonecanproducenearlytwicetheelectricityneedsoftheNorthSeacountries.Usingonly20%ofthatwouldsupplyone-thirdofthesecountries’electricity.Greenpeacearegoingtochallengegovernmentsandindustrytomakethishappen.TheRainbowWarriorsailedtodaytoHornsRev,theworld’slargestoffshorewindpark,whichisbeingbuiltoffthecoastofDenmark.AnotherGreenpeaceship,theArcticSunrise,willbeginthesecondpartoftheglobaltourinSoutheastAsianextmonth.“Duringtheseweeks,Greenpeacewillbeconductingthisglobaltourwithtwoshipstoshowthatrenewableenergyisreadyandabletoreplacedirtycoal,oil,gasandnuclearpower–notonlyinthefuture,buttoday”,saidaGreenpeacespokesperson.Windenergyisreportedtobecompetitivewithcoalandgaspowergenerationandclearlybeatscostlynuclearpower.TheUKgovernment’senergyreviewclaimedthatwindenergywillbethecheapestenergysourceby2020.Nextmonth,theArcticSunrisewillbevisitingthePhilippinesandThailand,wherecommunitiesarerejectingdirty,old-fashionedenergytechnologylikecoal-firedpowerstationsanddemandingclean,renewableenergy.Thepurposeoftheglobaltourwas1.A.toproduceelectricityneedsoftheNorthSeacountriesB.tosupportthedevelopmentofrenewableenergyaroundtheworldC.tovisitthePhilippinesandThailandD.toproduceclearandfashionedenergy2.Thedestinationoftheship,theRainbowWarriorwas2.A.DenmarkB.thePhilippinesC.ThailandD.HornsRev3.Accordingtothepassage,3willbethecheapestformofenergyby2020.A.windenergyB.nuclearpowerC.coal-firedpowerD.solarenergy4.ThepowerproducedbytheoffshorewindintheNorthSeacanbe4.A.one-thirdoftheelectricityneedsoftheNorthSeacountriesB.20%oftheelectricityneedsoftheNorthSeacountriesC.nearlytwicetheelectricityneedsoftheNorthSeacountriesD.exactlythesameamountoftheelectricityneedsoftheNorthSeacountries5.Wecaninferfromthispassagethat5.A.offshorewindintheNorthSeahasalreadyproducedenoughelectricityfortheNorthSeacountriesB.thepurposeoftheGreenpeaceshipistotransportrenewableenergyC.nuclearpoweristhecheapestpoweratpresentD.Greenpeacehavemorethanoneship