2000年1月大学英语四级听力原文

WhenIraqitroopsblewuphundredsofKuwaitioilwellattheendofGulfWar,scientistsfearedenvironmentaldisaster.Wouldblackpowderinthesmokefromthefirescirclestheglobeandblockoutthesun?

Manysaid“Noway?;rainwouldwashtheblackpowderfromtheatmosphere.ButinAmerica,airsamplingballoonshavedetectedhighconcentrationsofparticlessimilartothosecollectedinKuwait.didn'tcatchfire.IthasformedhugelakesintheKuwaitidesert.Theytrapinsectsandbirds,andpoisonavarietyofotherdesertanimalsandplants.

Theonlygoodnewsisthattheoillakeshavenotaffectedtheundergroundwaterresources.Sofar,theoilhasnotbeenabsorbedbecauseofthehardsandjustbelowthesurface.

Nothing,however,stopstheoilfromevaporating.Theresultingpoisonousgasesarechokingnearbyresidents.

Officialsaretryingtoorganizeaquickcleanup,buttheyarenotsurehowtodoit.Onepossibillityistoburntheoil.Getthoseblack-powderdetectorsready.

18.WhatwerethescientistsworriedaboutsoonaftertheGulfWar?

19.Whatwasthegoodnewsforscientists?

20.Whataretheofficialstryingtodoatthemoment?

20.A)Torestorethenormalproductionoftheoilwells.

B)Toestimatethelossescausedbythefires.

C)Toremovetheoilleftinthedesert.

D)Tousetheoilleftintheoillakes.

这道题为什么选择C没明白