★沈阳四六级模拟试题

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1、沈阳四六级模拟试题PartTwoProof-readingExercisesPassage34Theconcernofsomeenvironmentalscientiststhattheincreasinglevelofcarbondioxideintheearth’satmospherewillraiseglobaltemperaturesuntilthemid-latitudinalregionsbecomesteamingjunglesareopentoquestion.Contendingscient

2、ists[1]_______arecorrectthattheconcentratingofcarbon[2]_______dioxide,duetoautomobileexhaust,forexample,isincreasing.Throughtheabsorptionandre-radiationofinfraredradiation,carbondioxidedoeswarmertheatmosphere.Unfortunately,indirect[3]_______effectsthatthese

3、scientistshavenotconsideredmayoccur.Ifglobaltemperatureincreasedasaresultofhighcarbondioxidelevels,evaporationof[4]_______waterfromthelakesandoceanswillalsooccur.[5]_______Uponreachingthelowerlimitofcondensation,cumulonimbuscloudswouldform.Watervaporistrans

4、parenttovisiblewavelengthsoftheelectromagneticalspectrum;however,Lamb[6]______estimatesthatcumulonimbuscloudsscatterseventypercentoftheearthincidentsolar[7]______radiation.Withareductionofsolarradiationreachingtheearth’ssurface,coolingwouldoccur,firstonland

5、,secondintheatmosphere.Other[8]_______indirecteffectofhigherglobaltemperaturesthatsomeenvironmentalscientistshaveconsideredis[9]_______thatagreatamountofheatwouldbeabsorbedfromtheatmospherepriortothemeltingofpolaricepacksandcontinentalglaciers.Theamountofhe

6、atenergythaticewouldabsorbpriortomeltingisknownas“theheatoffusion.”Theatmospherewouldloseasignificantgreatamountofheat[10]_______energyintheprocessofmeltingtheworld’snaturalicereserves.Passage35Beforeinvestingincommonstocks,oneshouldbeawareofboththeiradvant

7、agesanddisadvantages.Oneadvantageistheirhighpotentialreturnontheoriginalamountinvested.Ahighaverageannualpercentofreturnandlarge[1]_______capitalgainsoveraperiodofyearsarenotunusual.However,sincetheaveragepriceofall[2]________stockssoldonthemajorstockexchan

8、gescanbeexpectedtorisemorethantheaveragepriceofconsumergoodsoveranextensiveperiodoftime,[3]_______commonstocksofferanattractivehedgeagainstlong-terminflation.Finally,therearetaxadvantagestoinvestincomm