Directions：Foreachnumberedblankinthefollowingpassage，therearefourchoicesmarkedA,B,CandD.ChoosethebestoneandmarkyouranswerontheANSWERSHEETwithapencil.In1999,thepriceofoilhoveredaround$16abarrel.By2008,ithad21the$100abarrelmark.Thereasonsforthesurge22fromthedramaticgrowthoftheeconomiesofchinaandIndiatowidespread23inoil-producingregions,includingIraqandNigeria'sdeltaregion.Triple-digitoilpriceshave24theeconomicandpoliticalmapoftheworld,25someoldnotionsofpower.Oil-richnationsareenjoyinghistoricgainsandopportunities,26majorimporters—includingchinaandIndia,hometoathirdoftheworld'spopulation27risingeconomicandsocialcosts.Managingthisneworderisfastbecomingacentral28ofglobalpolitics.Countriesthatneedoilareclawingateachotherto29scarcesupplies,andarewillingtodealwithanygovernment,30howunpleasant,todoit.Inmanypoornationswithoil,theprofitsarebeing,losttocorruption,31thesecountriesoftheirbesthopefordevelopment.Andoilisfuelingenormousinvestmentfundsrunbyforeigngovernments,32someinthewestseeasanewthreat.CountrieslikeRussia,VenezuelaandIranarewellsuppliedwithrisingoil33,achangereflectedinnewlyaggressiveforeignpolicies.Butsomeunexpectedcountriesarereapingbenefits,34costs,fromhigherprices.ConsiderGermany.35itimportsvirtuallyallitsoil,ithasprosperedfromextensivetradewithaboomingRussiaandtheMiddleEast.GermanexportstoRussia36128percentfrom2001to2006.IntheUnitedStates,asalreadyhighgaspricesrose37higherinthespringof2008,theissuecroppedupinthepresidentialcampaign,withSenatorsMcCainandObama38forafederalgastaxholidayduringthepeaksummerdrivingmonths.Anddrivinghabitsbeganto39,assalesofsmallcarsjumpedandmasstransportsystems40thecountryreportedasharpincreaseinriders.21.A.comeB.goneC.crossedD.arrived22.A.coveredB.discoveredC.arrangedD.ranged23.A.intensityB.infinityC.insecurityD.instability24.A.drawnB.redrawnC.retainedD.reviewed25.A.fightingB.strugglingC.challengingD.threatening26.A.andB.whileC.thusD.though27.A.confineB.conflictC.conformD.confront28.A.problemB.questionC.matterD.event29.A.look...
