【ThefailedSkylabwillcomescreaminghometotheearthindisappointmentsometimenextmonthbutwedon’tknowwhereitwillfall.Thatprecise（准确的）informationisbeyondeventhecalculationsofscientistandtheircomputers.】
ThefailedSkylabwillcomescreaminghometotheearthindisappointmentsometimenextmonthbutwedon’tknowwhereitwillfall.Thatprecise（准确的）informationisbeyondeventhecalculationsofscientistandtheircomputers.
Thebesttheycantellusisthatthespacestationweighting77tonsandashighasa12-storybuildingwillbreakintohundredsofpiecesthatwillbescattered（散落）acrossatrack100mileswideand4000mileslong.
Weareagainexposed（暴露）tooneofthoseunexpectedadventuresormisadventuresofsciencethatattractourattentionfromtheboringroutinesofdailyexistenceandencouragesustothinkalotaboutman’sfuture.
WhatworriesRichardSmiththeSkylab’sdirectoristhe“bigpieces”thatwillcomethroughtheatmosphere.Twolumpsweighing2tonseachandtenweighingatleast1000poundseachwillcomeinataspeedofhundredofmilesanhourandiftheycrashonlandtheywilldigholesupto100feetdeep.
Whatworriesuswithourlackofscientificknowledgeandourquickimaginationisboththebigandlittlepiecesalthoughprojectofficialssaythereisaverysmallchancethatanyonewillbeinjuredbythem.
That’sgoodtoknowbutitdoesn’tremovethedoubtofthemillionswhostillrememberthenuclearaccidentatThreeMileIsland.Thataccidenttookplacein1979inspiteofwhatscientistshadassured（向…保证）usastothesafetyofthenuclearreactor（反应堆）.
59.WheretheSkylabwillfall____.
A.iskeptsecret
B.willbeannouncedsoon
C.isforetoldbyscientists
D.can’tbeforetold
60.ThebrokenSkylabwillcomeintoview____.
A.intwolumps----oneweighing2tonsandtheotherweighing10tons
B.fallingwiththeforceofa12-storybuilding
C.as12biggerpiecesandhundredsofsmallerpieces
D.asanattractivescenetomillionsofpeople
61.ThewritermentionsThreeMileIsland____.
A.becausehefearsthatapieceoftheSkylabmaystrikeanuclearpowerplant
B.toexpresshisdoubtabouttheofficials’words
C.becauseheisafraidofnuclearpower
D.becausethenuclearreactorthereandtheSkylabwerebuiltbythesamecompany
62.Thewriterexpresseshis____.