考研英语作文经典范文

考研英语作文经典范文

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研英语作文:BritishColumbiaBriti...

考研英语考试结束之后，对于它的英语写作大家是不是很快就会忘记了

呀。下面是我给大家整理的考研英语作文，供大家参阅！

考研英语作文：BritishColumbia

BritishColumbiaisthethirdlargestCanadianprovinces,both

inareaandpopulation.Itisnearly1.5timesaslargeasTexas,

andextends800miles(1,280km)northfromtheUnitedStatesborder.

ItincludesCanadasentirewestcoastandtheislandsjustoffthe

coast.

MostofBritishColumbiaismountainous,withlongruggedranges

runningnorthandsouth.Eventhecoastalislandsaretheremains

ofamountainrangethatexistedthousandsofyearsago.Duringthe

lastIceAge,thisrangewasscouredbyglaciersuntilmostofit

wasbeneaththesea.Itspeaksnowshowasislandsscatteredalong

thecoast.

Thesouthwesterncoastalregionhasahumidmildmarineclimate.

Seawindsthatblowinlandfromthewestarewarmedbyacurrent

ofwarmwaterthatflowsthroughthePacificOcean.Asaresult,

wintertemperaturesaverageabovefreezingandsummersaremild.

Thesewarmwesternwindsalsocarrymoisturefromtheocean.

Inlandfromthecoast,thewindsfromthePacificmeetthemountain

barriersofthecoastalrangesandtheRockyMountains.Astheyrise

tocrossthemountains,thewindsarecooled,andtheirmoisture

beginstofallasrain.Onsomeofthewesternslopesalmost200

inches(500cm)ofrainfalleachyear.

MorethanhalfofBritishColumbiaisheavilyforested.On

mountainslopesthatreceiveplentifulrainfall,hugeDouglasfirs

riseintoweringcolumns.Theseforestgiantsoftengrowtobeas

muchas300feet(90m)tall,withdiametersupto10feet(3m).More

lumberisproducedfromthesetreesthanfromanyotherkindoftree

inNorthAmerica.Hemlock,redcedar,andbalsamfirareamongthe

othertreesfoundinBritishColumbia.

考研英语作文：TheoriginofRefrigerators

Bythemid-nineteenthcentury,theterm"icebox"hadenteredthe

Americanlanguage,buticewasstillonlybeginningtoaffectthe

dietofordinarycitizensintheUnitedStates.Theicetradegrew

withthegrowthofcities.Icewasusedinhotels,taverns,and

hospitals,andbysomeforward-lookingcitydealersinfreshmeat,

freshfish,andbutter.AftertheCivilWar(1861-1865),asicewas

usedtorefrigeratefreightcars,italsocameintohouseholduse.

Evenbefore1880,halfoftheicesoldinNewYork,Philadelphia,

andBaltimore,andone-thirdofthatsoldinBostonandChicago,

wenttofamiliesfortheirownuse.Thishadbecomepossiblebecause

anewhouseholdconvenience,theicebox,aprecursorofthemodern

refrigerator,hadbeeninvented.

Makinganefficienticeboxwasnotaseasyaswemightnowsuppose.

Intheearlynineteenthcentury,theknowledgeofthephysicsof

heat,whichwasessentialtoascienceofrefrigeration,was

rudimentary.Thecommonsensenotionthatthebesticeboxwasone

thatpreventedtheicefrommeltingwasofcoursemistaken,forit

wasthemeltingoftheicethatperformedthecooling.Nevertheless,

earlyeffortstoeconomizeiceincludedwrappinguptheicein

blankets,whichkepttheicefromdoingitsjob.Notuntilnearthe

endofthenineteenthcenturydidinventorsachievethedelicate

balanceofinsulationandcirculationneededforanefficient

icebox.

Butasearlyas1803,andingeniousMarylandfarmer,ThomasMoore,

hadbeenontherighttrack.Heownedafarmabouttwentymiles

outsidethecityofWashington,forwhichthevillageofGeorgetown

wasthemarketcenter.Whenheusedaniceboxofhisowndesignto

transporthisbuttertomarket,hefoundthatcustomerswouldpass

uptherapidlymeltingstuffinthetubsofhiscompetitorstopay

apremiumpriceforhisbutter,stillfreshandhardinneat,

one-poundbricks.Oneadvantageofhisicebox,Mooreexplained,was

thatfarmerswouldnolongerhavetotraveltomarketatnightin

ordertokeeptheirproducecool.

考研英语作文：Plankton浮游生物

Scatteredthroughtheseasoftheworldarebillionsoftonsof

smallplantsandanimalscalledplankton.Mostoftheseplantsand

animalsaretoosmallforthehumaneyetosee.Theydriftabout

lazilywiththecurrents,providingabasicfoodformanylarger

animals.

Planktonhasbeendescribedastheequivalentofthegrassesthat

growonthedrylandcontinents,andthecomparisonisanappropriate

one.Inpotentialfoodvalue,however,planktonfaroutweighsthat

ofthelandgrasses.Onescientisthasestimatedthatwhilegrasses

oftheworldproduceabout49billiontonsofvaluablecarbohydrates

eachyear,theseasplanktongeneratesmorethantwiceasmuch.

Despiteitsenormousfoodpotential,littleeffectwasmadeuntil

recentlytofarmplanktonaswefarmgrassesonland.Nowmarine

scientistshaveatlastbeguntostudythispossibility,especially

astheseasresourcesloomevenmoreimportantasameansoffeeding

anexpandingworldpopulation.

Nooneyethasseriouslysuggestedthat〃plankton-burgers/zmay

soonbecomepopulararoundtheworld.Asapossiblefarmed

supplementaryfoodsource,however,planktonisgaining

considerableinterestamongmarinescientists.

Onetypeofplanktonthatseemstohavegreatharvest

possibilitiesisatinyshrimp-likecreaturecalledkrill.Growing

totwoorthreeincheslong,krillprovidesthemajorfoodforthe

greatbluewhale,thelargestanimaltoeverinhabittheEarth.

Realizingthatthiswhalemaygrowto100feetandweigh150tons

atmaturity,itisnotsurprisingthateachonedevoursmorethan

onetonofkrilldaily.

考研英语作文：Botany

Botany,thestudyofplants,occupiesapeculiarpositioninthe

historyofhumanknowledge.Formanythousandsofyearsitwasthe

onefieldofawarenessaboutwhichhumanshadanythingmorethan

thevaguestofinsights.Itisimpossibletoknowtodayjustwhat

ourStoneAgeancestorsknewaboutplants,butformwhatwecan

observeofpre-industrialsocietiesthatstillexistadetailed

learningofplantsandtheirpropertiesmustbeextremelyancient.

Thisislogical.Plantsarethebasisofthefoodpyramidforall

livingthingsevenforotherplants.Theyhavealwaysbeen

enormouslyimportanttothewelfareofpeoplenotonlyforfood,

butalsoforclothing,weapons,tools,dyes,medicines,shelter,

andagreatmanyotherpurposes.Tribeslivingtodayinthejungles

oftheAmazonrecognizeliterallyhundredsofplantsandknowmany

propertiesofeach.Tothem,botany,assuch,hasnonameandis

probablynotevenrecognizedasaspecialbranchof〃knowledge”

atall.

Unfortunately,themoreindustrializedwebecomethefartheraway

wemovefromdirectcontactwithplants,andthelessdistinctour

knowledgeofbotanygrows.Yeteveryonecomesunconsciouslyonan

amazingamountofbotanicalknowledge,andfewpeoplewillfailto

recognizearose,anapple,oranorchid.