【Therearethreeseparatesourcesofdangerinsupplyingenergybynuclearpower.First,theradioactivematerialmusttravelfromitsformofproductiontothepowerstation.Althoughthepowerstationsthemselvesarestronglybuilt,thecontaine】

　　Therearethreeseparatesourcesofdangerinsupplyingenergybynuclearpower.

　　First,theradioactivematerialmusttravelfromitsformofproductiontothepowerstation.Althoughthepowerstationsthemselvesarestronglybuilt,thecontainersusedforthetransportofthematerialsarenot.Normally,onlytwomethodsoftransportareinuse,namelyroadorrail.Unfortunately,bothofthesemayhaveaneffectonthegeneralpublic,sincetheyaresuretopassnear,oreventhough,heavilypopulatedareas.

　　Secondly,thereistheproblemofwaste.Allnuclearpowerstationsproducewastethatinmostcaseswillremainradioactiveforthousandsofyears.Itisimpossibletomakethesewasteradioactive,andsotheymustbestoredinoneoftheinconvenientwaysthatscientistshaveinvented.Forexample,theymaybeburiedundertheground,ordroppedintodesertedmines,orsunkinthesea.However,thesemethodsdonotsolvetheproblem,sinceanearthquakecouldeasilybreakthecontainers.

　　Third,theremayoccurthedangerofaleakoranexplosionatthepowerstation.Aswiththeothertwodangers,thisisnotverylikely,soitdoesnotprovideaseriousobjectiontothenuclearprogram.However,itcanhappen.

　　Separately,thesethreetypesofdangersarenotagreatcauseforworry.Takentogether,though,theprobabilityofdisasterisextremelyhigh.

　　小题1:WhichofthefollowingisFALSE?A．Itispossiblethataleakoranexplosionoccursatapowerstation.B．Itisunusualforradioactivematerialstobetransportedacrossland.C．Thecontainersarelikelytobebrokenbyanearthquake.D．Nuclearwastesremaindangerousinmostcasesformanyyears.小题2:Theauthorthinksthatthewaystostorenuclearwastesare____________.A．easyB．impossibleC．reasonableD．ineffective小题3:Whatdowelearnfromthelastparagraph?A．Thepowerstationisasafeplace.B．Thedangersofnuclearenergycanbeprepared.C．Thegeneralpublicarestronglyagainstthenuclearprogram.D．Itself,noneofthethreedangersisverylike