环境工程考研英语复试专业问题.docx
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环境工程考研英语复试专业问题
1.EnvironmentalProblems
Theenvironmentisourphysicalsurroundings.Thisincludesbothhuman(man-made),socialandphysical(natural)features.Naturalfeaturesincludesoil,theatmosphere,vegetationandwildlife.Humanfeaturesincludehousing,transportandindustry.Socialfeaturesincludethingssuchasculture,languageandpoliticalsystems.
Geographersareconcernedabouthumanactionintheenvironment.Humaninterferencewiththeenvironmentcausesproblemssuchassoilerosion,globalwarmingandacid.
Youmayaskhowweasindividualscanhaveanimpactontheenvironment.Ouractionscanhelptoincreaseanddecreasetheproblemshighlightedabove.Forexampleturningofflightsthatarenotbeingusedhelpstoreduceglobalwarming.
Questions:
1.Whatistheenvironment?
2.Howcanwehelptodecreasetheglobalwarmingproblems?
GlobalWarming
Globalwarmingistheworldwidewarmingoftheatmosphere.Tounderstandglobalwarmingyoufirstneedtoknowaboutthegreenhouseeffect.Thegreenhouseeffectisanaturalphenomenonthatcontrolsthebalanceofheatwithintheearth'satmosphere.Itistheprocesswherebythenaturallayerofgasesinouratmospheretrapasmallpercentageofthesun'sradiationreflectedfromtheearth'ssurface.Withoutthegreenhouseeffect,theaveragesurfacetemperaturewouldbeabout-18degreesCelsius.
Globalwarmingiscausedbytheincreasesintheamountofcarbondioxideandothergasesbeingreleasedintotheatmospherebytheburningoffossilfuels.Thesegasesaddtothenaturalgreenhouseeffect.Causingglobaltemperaturestorise.
Questions:
1.Whatisglobalwarming?
2.Whatcausesglobalwarming?
Atmosphericparticulatematter
Inrecentyears,ourcountryappearmuchhazeweather,whichisnowoftenreferredtoPM2.5.Specifically,PM2.5isintheatmosphereofdiameterlessthanorequalto2.5micronparticles,whichisalsoknownasentersthelungparticlematter.Itsdiameterislessthanthethicknessofahumanhair1/20.
Atmosphericparticulatematter-alsoknownasparticulatesorparticulatematter(PM)-aretinypiecesofsolidorliquidmatterassociatedwiththeEarth'satmosphere.Theyaresuspendedintheatmosphereas atmospheric aerosol,atermwhichreferstotheparticulate/airmixture,asopposedtotheparticulatematteralone.However,itiscommontousethetermaerosoltorefertotheparticulatecomponentalone.
Someparticulatesoccurnaturally,originatingfromvolcanoes,duststorms,forestandgrasslandfires,livingvegetation,andseaspray.Humanactivities,suchastheburningoffossilfuelsinvehicles,powerplantsandvariousindustrialprocessesalsogeneratesignificantamountsofparticulates.Coalcombustionindevelopingcountriesistheprimarymethodforheatinghomesandsupplyingenergy.
Particulatematteremissionsarehighlyregulatedinmostindustrializedcountries.Duetoenvironmentalconcerns,mostindustriesarerequiredtooperatesomekindofdustcollectionsystemtocontrolparticulateemissions.Thesesystemsincludeinertialcollectors(cyclonecollectors),fabricfiltercollectors(baghouses),wetscrubbers,andelectrostaticprecipitators.
Questions:
1、
1.WhatisAtmosphericparticulatematter?
2.Whatcausesglobalwarming?
Theacidityofacidrain
AcidityinrainismeasuredbycollectingsamplesofrainandmeasuringitspH.Tofindthedistributionofrainacidity,weatherconditionsaremonitoredandrainsamplesarecollectedatsitesalloverthecountry.Theareasofgreatestacidity(lowestpHvalues)arelocatedintheNortheasternUnitedStates.Thispatternofhighacidityiscausedbythelargenumberofcities,thedensepopulation,andtheconcentrationofpowerandindustrialplantsintheNortheast.Inaddition,theprevailingwinddirectionbringsstormsandpollutiontotheNortheastfromtheMidwest,anddustfromthesoilandrocksintheNortheasternUnitedStatesislesslikelytoneutralizeacidityintherain.
Questions:
1.Howdowemeasuretheacidityofrain?
2.Howdothedensityofpowerplantsaffectacidicrain?
4.TheGreenhouseEffect
Greenhouseeffectistheeffectproducedbytheaccumulationofcarbondioxidecrystalsandwatervaporintheupperatmosphere,whichinsulatestheearthandraisestheatmospherictemperaturebypreventingheatloss.Chlorofluorocarbonsalsohelpcreatethegreenhouseeffect.
AnumberofgasesintheatmospherearetransparenttoincomingsunlightbutabsorbtheheatemittedfromtheEarth'ssurfaceandreradiateitinalldirections,includingbacktowardthesurface.Asaresult,thesurfaceiswarmedmorethanitwouldhavebeenintheabsenceofthesegases,whichserveapurposesimilartothatoftheglasswallsofagreenhouse.
Globalwarmingreferstotheenhancementofthenaturalgreenhouseeffectduetorisingatmosphericconcentrationsofgreenhousegasesresultingfromhumanactivities.
Questions:
1.Whatisthegreenhouseeffect?
2.Howtoreduceatmosphericparticulatepollution?
3.WATERPOLLUTION
Comprisingover70%oftheEarth’ssurface,waterisundoubtedlythemostpreciousnaturalresourcethatexistsonourplanet. Withouttheseeminglyinvaluablecompoundcomprisedofhydrogenandoxygen,lifeonEarthwouldbenon-existent:
itisessentialforeverythingonourplanettogrowandprosper. Althoughweashumansrecognizethisfact,wedisregarditbypollutingourrivers,lakes,andoceans.Subsequently,weareslowlybutsurelyharmingourplanettothepointwhereorganismsaredyingataveryalarmingrate. Inadditiontoinnocentorganismsdyingoff,ourdrinkingwaterhasbecomegreatlyaffectedasisourabilitytousewaterforrecreationalpurposes. Inordertocombatwaterpollution,wemustunderstandtheproblemsandbecomepartofthesolution.
Questions:
1.Whyisitimportantforustounderstandthewaterpollutionproblems?
2.Howimportantiswaterforourhumanbeing?
Whatisacidrain?
Theterm"acidrain"iscommonlyusedtomeanthedepositionofacidiccomponentsinrain,snow,fog,dew,ordryparticles.Themoreaccuratetermis"acidprecipitation."Distilledwater,whichcontainsnocarbondioxide,hasaneutralpHof7.LiquidswithapHlessthan7areacid,andthosewithapHgreaterthan7arealkaline(orbasic)."Clean"orunpollutedrainhasaslightlyacidicpHof5.6,becausecarbondioxideandwaterintheairreacttogethertoformcarbonicacid,aweakacid.AroundWashington,D.C.,however,theaveragerainpHisbetween4.2and4.4.
Theextraacidityinraincomesfromthereactionofairpollutants,primarilysulfuroxidesandnitrogenoxides,withwaterintheairtoformstrongacids(likesulfuricandnitricacid).Themainsourcesofthesepollutantsarevehiclesandindustrialandpower-generatingplants.InWashington,themainlocalsourcesarecars,trucks,andbuses.
Questions:
WhatisthepHofthecleanrain?
WhyisthepHofcleanrainlessthan7?
Theacidityofacidrain
(2)
AcidityinrainismeasuredbycollectingsamplesofrainandmeasuringitspH.Tofindthedistributionofrainacidity,weatherconditionsaremonitoredandrainsamplesarecollectedatsitesalloverthecountry.Theareasofgreatestacidity(lowestpHvalues)arelocatedintheNortheasternUnitedStates.Thispatternofhighacidityiscausedbythelargenumberofcities,thedensepopulation,andtheconcentrationofpowerandindustrialplantsintheNortheast.Inaddition,theprevailingwinddirectionbringsstormsandpollutiontotheNortheastfromtheMidwest,anddustfromthesoilandrocksintheNortheasternUnitedStatesislesslikelytoneutralizeacidityintherain.
Questions:
Howdowemeasuretheacidityofrain?
Howdothedensityofpowerplantsaffectacidicrain?
1.Whichkindofprofessordoyoulikebest?
2.What impressed you most when you were at university?
3.Do you think the subjects you are studying today are relevant to present-day society?
Why?
4.Does your family support your decision on studying?
What help do they offer?
5.Where have you been traveling to?
Which place interested you most?
6.WhatdoyouthinkabouttherelationshipbetweeneducationandemploymentaftergraduationfromtheUniversity