2023年考研外語(yǔ)提分沖刺試卷4_第1頁(yè)
2023年考研外語(yǔ)提分沖刺試卷4_第2頁(yè)
2023年考研外語(yǔ)提分沖刺試卷4_第3頁(yè)
2023年考研外語(yǔ)提分沖刺試卷4_第4頁(yè)
2023年考研外語(yǔ)提分沖刺試卷4_第5頁(yè)
已閱讀5頁(yè),還剩22頁(yè)未讀 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說(shuō)明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡(jiǎn)介

考研外語(yǔ)提分沖刺試卷4

一、UseofEnglish

1>Mostofusaretaughttopayattentiontowhatissaid一the

words.Wordsdoprovideuswithsomeinformation,butmeanings

are(1)fromsomanyothersourcesthatitwouldhinder

oureffectiveness(2)apartnertoarelationshiptorely

tooheavilyonwords(3)Wordsareusedtodescribeonly

asmallpartofthemanyideasweassociatewithanygiven

(4).Sometimeswecangaininsightintosomeofthose

(5)ifwelistenfor(6)words.Wedon'talwayssay

whatwemean(7)meanwhatwesay.Mostlywemeanseveral

thingsatonce.Apersonwantingtopurchaseahousesaysto

thecurrentowner."ThisstephastobefixedbeforeI'11buy”.

Theownersays,"It'sbeenlikethatforyears”.(8),the

stephasn'tbeenlikethatforyears,butthe(9)message

is:“Idon,twanttofixit.Wecanputupwithitwhycan,t

you?”The(10)foramoreexpansiveviewofmeaningcan

bedevelopedbyexaminingamessage(11)whosaidit,when

itoccurred,the(12)conditionsorsituation,andhowit

wassaid.

Whenamessageoccurscanalso(13)associatedmeaning.

Afriend'sunusuallydocilebehavior,mayonlybeunderstood

by(14)thatitwasprecededbysituationsthatrequired

a(n)(15)amountofassertiveness.

Wewoulddowelltolistenforhowmessageare(16)The

words,“itsurehasbeennicetohaveyouover”,canbesaid

with(17)andexcitedorritualistically.Thephrasecan

besaidonceor(18)severaltimes.Andthemeaningwe

associatewiththephrasewillchange(19)Sometimesif

wesaysomethinginfrequentlyitassumesmoreimportance;

sometimesthemorewesaysomethingthe(20)importance

itassumes.

A.omitted

B.resulted

C.dismissed

D.derived

2、(2)

A.for

B.under

C.as

D.against

3、⑶

A.aswell

B.alone

C.longbefore

D.though

4、⑷

A.message

B.description

C.statement

D.explanation

5、⑸

A.associations

B.appointments

C.appliances

D.agitations

6、(6)

A.lessthan

B.ratherthan

C.morethan

D.otherthan

7、(7)

A.orelse

B.or

3

C.butrather

D.but

8、(8)

A.Theoretically

B.Ironically

C.Probably

D.Actually

9、(9)

A.inclined

B.declared

C.implied

D.delivered

10、(10)

A.search

B.inquiry

C.worry

D.confusion

IK(11)

A.intermsof

B.inthelightof

C.inlinewith

D.inthewakeof

4

12、(12)

A.involved

B.included

C.related

D.concerned

13、(13)

A.uncover

B.expose

C.display

D.reveal

14、(14)

A.marking

B.noting

C.labeling

D.spotting

15、(15)

A.complex

B.abnormal

C.moderate

D.ambiguous

16、(16)

A.offered

B.granted

C.presented

D.agreed

17、(17)

A.emphasis

B.hesitation

C.interest

D.pressure

18、(18)

A.renewed

B.recovered

C.repeated

D.restored

19、(19)

A.unexpectedly

B.occasionally

C.especially

D.accordingly

20、(20)

A.better

B.less

C.worse

6

D.more

二、ReadingComprehension

1、PartA

Directions:Readthefollowingfourtexts.Answerthequestions

beloweachtextbychoosingA,B,CorD.(40points)

AfterLosAngeles,AtlantamaybeAmerica'smostcar-dependent

city.Atlantanssentimentallygivetheircarsnames,compare

speedingticketsandjealouslyguardanysidestreetwhereit

ispossibletopark.Thecity'sroadsaresowellwornthatthe

firstactofthenewmayor,ShirleyFranklin,wastostart

repairingpotholes.In1998,13metrocountieslostfederal

highwayfundsbecausetheirair-pollutionlevelsviolatedthe

CleanAirAct.TheAmericanHighwayUsersAlliancerankedthree

Atlantainterchangesamongthe18worstbottlenecksinthe

country.

Othercitiesinthesamefixhavereorganizedtheirhighways,

imposedcommuterandcartaxes,orexpandedtheir

public-transportsystems.Atlantadoesnotlikeanyofthese

things.Publictransportisavexedsubject,too.Atlanta,s

metropolitanregionisdividedintonumerouscountyandsmaller

citygovernments,whichfindithardtoworktogether.Railways

nowservethecitycenterandtheairport,butnotmuchelse;

busstopsareoftennearinvisiblepoles,offeringno

indicationofwhichbusmightstopthere,orwhen.

Georgia(sDemocraticgovernor,RoyBarnes,whohopesfor

reelectioninNovember,hasotherplans.Towinbackthefederal

highwaymoneylostundertheCleanAirAct,hecreatedthe

GeorgiaRegionalTransportationAuthority(GRTA),a15-member

boardwiththepowertomakethecountygovernments,thecity

andtheten-countyAtlantaRegionalCommissioncooperateon

transportplans,whetherthey1ikeitornot.

NowGRTAhasissueditsownpreliminaryplan,allocating$4.5

billionoverthenextthreeyearsforavarietyofschemes.The

planearmarksmoneytowidenroads;tohaveanelectricshuttle

busshuttletouristsamongtheelegantvillasofBuckhead;and

tocreateacommuterraillinkbetweenAtlantaandMacon,two

hourstothesouth.Countieswillbeencouraged,withgenerous

ten-to-onematchingfunds,tostartexpressbusservices.

Publicgoodwill,however,maynotstretchasfarasthenext

plan,whichistobuildtheNorthernArchighwayfor65miles

acrossthreecountiesnorthofthecitylimits.GRTAhas

allotted$270mforthis.Supporterssayitwou1deasethe

congestiononlocalroads;opponentsthinkitwouldworsen

over-developmentandtraffic.Thecountiesaffected,andeven

GRTA'sownboard,aredivided.

Thegovernorisinfavor,however;andsincehecanappointand

fireGRTA'Smembers,thatisprobablytheendofthestory.Mr.

Barneshasatendencytodoashewants,regardless.His

arroganceontrafficmatterscouldalsolosehimvotes.ButMr.

BarnesthinkthatAtlanta,sslowingeconomycoulddohimmore

harmthantheanti-sprawlmovement.

Theauthor'spresentationofAtlanta*scar-dependenceis

meant.

A.tobeironic.

B.topokefuntothem.

C.tobefair.

D.tomakeitnotorious.

2、

Theword"bottleneck”(Para.1)bestconnotes.

A.toviolatethelaw.

B.toslackthepace.

C.tobestuckintraps.

D.tobeheldup.

3、

WhichofthefollowingisNOTmentionedinthetext?

A.ControversiesexistconcerningthetrafficinAtlanta.

B.ThefederalfundswerelostundertheCleanAirAct.

C.Atlantamustabandonbusesandbuildmorehighways.

D.Thecountygovernmentsshouldlearntobecooperative.

4、

WhichofthefollowingisNOTpartofthe“anti-sprawl

movement"asplannedbygovernorRoyBarnes?

A.HissuccessinreelectioninNovember.

B.Theinitiationofshuttlebustransit.

C.Theallocationofmoneytowidenroads.

D.Theconstructionofacommuterrail.

5、

Itseemsthatthebestsolutiontothetrafficproblemin

Atlantaseemstoliein.

A.theenforcementoftrafficregulations.

B.theimprovementofitsroadconditions.

C.theincreaseofcommuterandcartaxes.

D.theimprovementofitspublictransports.

6、Iftheopinionpollsaretobebelieved,mostAmericans

arecomingtotrusttheirgovernmentmorethantheyusedto.

ThehabithasnotyetspreadwidelyamongAmericanIndians,who

suspectanorganizationwhichhassooftenpatronizedthem,

liedtothemanddefraudedthem.ButtheIndiansmaysoonwin

avictoryinalegalbattlethatepitomizesthoseabuses.

ElouiseCobell,abankerwhoalsohappenstobeamemberofthe

BlackfeettribeinMontana,istheleadingplaintiffina

massiveclass-actionsuitagainstthegovernment.Atissueis

upto$10billionintrustpaymentsowedtosome500,000Indians.

ThesuitrevolvesaroundIndividualIndianMoney(11M)accounts

thatareadministeredbytheInteriorDepartment,sBureauof

IndianAffairs(BIA).Backinthe1880s,thegovernmentdivided

morethan11macresoftriballandintoparcelsof80to160

acresthatwereassignedtoindividualIndians.Becausethese

parcelswererarelyoccupiedbytheirnewowners,the

governmentassumedresponsibilityformanagingthem.Asthe

Indians,trustee,itleasedthelandoutforgrazing,logging,

miningandoi1drilling一butitwassupposedtodistributethe

royaltiestotheIndianowners.

Infact,officialsadmitthatroyaltieshavebeenlostorstolen.

Recordsweredestroyedandthegovernmentlosttrackofwhich

Indiansownedwhatland.Theplaintiffssaythatmoneyisowing

to500,000Indians,buteventhegovernmentacceptsafigure

ofabout300,000.Foryears,CobellheardIndianscomplainof

notgettingpaymentfromthegovernmentfortheoil-drilling

andranchingleasesontheirland.Butnothingmuchgotdone.

ShereturnedtoWashingtonand,afterabrush-offfrom

governmentlawyers,filedthesuit.

GaleNorton,GeorgeBushesinteriorsecretarywaschargedwith

contemptinNovemberbecauseherdepartmenthadfailedtofix

theproblem.InDecember,JudgeLamberthorderedtheinterior

Departmenttoshutdownallitscomputersfortenweeksbecause

trustfundrecordswerevulnerabletohackers.Thesystemwas

partlyrestoredlastmonthandpaymentstosomeIndians,which

hadbeeninterrupted,resumed.

Andthatisnottheendofit.Ms.Nortonhasproposedthe

creationofanewBureauofIndianTrustManagement,separate

fromtheBIA.Indiansarecrossthatshesuggestedthiswithout

consultingthem.Somewantthetrustfundstobeplacedin

receivership,underaneutralsupervisor.Othershavecalled

forCongresstoestablishanindependentcommission,including

Indians,todrawupaplanforreformingthewholesystem.A

messyinjusticemayatlastbegettingsortedout.

ElouiseCobellcriticizedtheInteriorDepartment(sBIAfor

A.itsleasinglandoutforexploitation.

B.itsdistributionofmoneycollected.

C.itssupposedmisconductofabuses.

D.itsreactiontoamassiveaction.

7、

Itseemsthattheauthorismostcriticalofthegovernment's

A.irresponsibility.

B.interference.

C.bureaucracy.

D.inequality.

8、

Whenmentioning“parcelsof80to160acres”,thewriteris

talkingabout.

A.oilprospectors.

B.trustpayments.

C.privateproperty.

D.landownership.

9、

WhatistheattitudeofAmericanIndianstowardsGaleNorton,s

proposal?

A.Skeptical.

B.Scornful.

C.Annoyed.

D.Indifferent.

10、

WhichofthefollowingisTRUEaccordingthetext?

A.TrustfundshavebeenplacedinthehandsofAmerican

Indians.

B.PaymentsowedtoAmericanIndianhavebeenindefinitely

delayed.

C.BIAdeliberatelyleavestrust-fundrecordsvulnerableto

risks.

D.AmericanIndiansshouldbecomeincreasinglyvocalfor

justice.

11、TheEuropeanUnion'sBarcelonasummit,whichendedon

March16th,wasplayedoutagainsttheusualbackdropofnoisy

“anti-globalization“demonstrationsandmassivesecurity.If

nothingelse,thedemonstrationsillustratedthateconomic

liberalizationinEurope一themeeting'smaintopic一presents

genuinepoliticaldifficulties.Influentialsectionsofpublic

opinioncontinuetoopposeanythingthattheyimaginethreatens

“socialEuropetheidealofacradle-to-gravewelfarestate.

Inthisclimateofpublicopinion,itisnotsurprisingthat

theoutcomeinBarcelonawasmodest.Thetotemicissuewas

openingupEurope'senergymarkets.TheFrenchgovernmenthas

foughthardtopreserveaprotectedmarketathomeforits

state-ownednationalchampion,ElectricitedeFrance(EDF).At

Barcelonaitmadeawell-flaggedtacticalretreat.The

summiteersconcludedthatfrom2022industrialusersacross

Europewouldbeabletochoosefromcompetingenergysuppliers,

whichshouldaccountfor“atleast”60%ofthemarket.

SinceEurope'senergymarketisworth350billion($309billion)

ayearandaffectsjustabouteverybusiness,thisisa

breakthrough.Buteventheenergydealhasdisappointing

aspects.Confiningcompetitiontobusinessusersmakesit

hardertoshowthateconomicliberalizationisthefriend

ratherthanthefoeoftheordinaryperson.ItalsoallowsEDF

tokeepitsmonopolyinthemostprofitablechunkoftheFrench

market.

Inotherareas,especiallytodowithEurope'stoughlabor

markets,theEUisactuallygoingbackwards.Thesummiteers

declaredthat''disincentivesagainsttakingupjobs"shouldbe

removed;20mjobsshouldbecreatedwithintheEUby2022.But

onlythreedaysafteraBarcelonajamboree,theEuropean

Commissionendorsedanewlawthatwouldgiveall

temporary-agencyworkersthesamerightsasfull-timerswithin

sixweeksofgettingtheirfeetunderthedesk.Sixoutof20

commissionersdid,unusually,voteagainstthemeasure一a

blatantpieceofre-regulation—butthesocialaffairs

commissioner,AnnaDiamantopoulou,wasunrepentant,indeed

triumphant.Adissatisfiedliberaliserinthecommission

calledthedirective“anabsolutedisaster'".

Thesummit'sotherachievementsarestillmorefragile.

Europe'sleaderspromisedtoincreasespendingon''researchand

development"fromitscurrentfigureof1.9%ofGDPayearto

3%.ButhowwillEuropeanpoliticianscompelbusinessesto

investmoreinresearch?Nobodyseemstoknow.Andtheonebig

researchprojectagreedonatBarcelona,theGalileo

satellite-positioningsystem,whichissupposedtocost3.2

billionofpublicmoney,isofdubiouscommercialvalue,since

theEuropeansalreadyenjoyfreeaccesstotheAmericans,GPA

system.EdwardBannerman,headofeconomicsattheCentrefor

EuropeanReform,aBlairitethink-tank,callsGalileo"the

commonagriculturalpolicyinspace”.

Whatisthepassagemainlyabout?

A.AreviewofEU'sBarcelonasummit.

B.AboutmeritsofaEU'ssummit.

C.AsurveyofEurope,scompetitors.

D.AbouttheachievementsoftheEU.

12、

Thepubliclaunchedademonstrationsagainstthesummitwith

respectto.

A.politicaldifficulties.

B.itsstronginfluence.

C.imaginativeideals.

D.itssocialwelfare.

13、

Accordingtothistext,“anti-globalization"isto

liberation"as.

A.securityisto"threats”.

B.monopolyisto"competition”.

C.publicityisto"privacy”.

D.researchisto“development”.

14、

WelearnfromthetextthatEdwardBannermanisprobably

A.anenthusiastinagriculturalpolicy.

B.atoughleaderinsocialaffairs.

C.andoubterofspendingonresearch.

D.apioneerinspaceexploration.

15、

Intheeyesoftheauthor,theEU'sBarcelonasummit,

A.turnedouttoberatherdisappointing.

B.wasasproductiveasexpected.

C.provedtobequitedissatisfactory.

D.wasnotsofruitfulasanticipated.

16、Everydaysome16mbarrelsofoilleavetheGulfthrough

theStraitofHormuz.Thatisenoughtofillasoft-drinkcan

foreveryoneonearth,ortopowereverymotorvehicleonthe

planetfor25miles(40km).Gulfoilaccountsfor40%ofglobal

tradeinthestickystuff.Moreimportant,itmakesup

two-thirdsofknowndeposits.Whereasatpresentproduction

ratestherestoftheworld'soilreserveswilllastforamere

25years,theGulf'swilllastfor100.Inotherwords,the

region'sstrategicimportanceissettogrowandgrow.

Oratleastsogoestheconventionalwisdom,whichisusually

roundedoutwithscarytalkofunstablesupplies,spendthrift

regimesandapotentialfundamentalistmenace.Yetallthose

numberscomewithcaveats.Agreatdealofoilisconsumedby

thecountriesthatproduceitratherthantraded,soinreality

theGulfaccountsforlessthanaquarteroftheworld'sdaily

consumption.Asforreserves,thefiguresareaschangeableas

amirageinthedesert.Themostcomprehensiveresearch

available,conductedbytheUSGeologicalSurvey,referstoan

“expected"totalvolumeforglobalhydrocarbondepositsthat

isaboutdoublecurrentknownreserves.Usingthatfigure,and

throwinginnaturalgasalongwithoil,itappearsthattheGulf

containsamoremoderate30%orsooftheplanet'sfuture

fossil-fuelsupplies.LeavingoutthetwoGulfstatesthatare

notcoveredinthissurvey—IranandIraq一theremainingsix

betweenthemholdsomethinglike20%ofworldhydrocarbon

reserves,notmuchmorethanRussia.

Allthesame,itisstillaheftychunk;enough,youmightthink,

tokeepthepeoplelivingatopthewellsincomfortforthe

foreseeablefuture.Butyoumightbewrong.Atpresent,the

nationsoftheGulfCooperationCouncilhaveacombined

nationalincomeroughlyequaltoSwitzerland's,buta

populationwhich,ataround30m,ismorethanfourtimesasbig.

Itisalsothefastest-growingonearth,havingincreasedat

ninetimestheSwissrateoverthepastquarter-century.

Meanwhiletheregion,sshareofworldoiltradehasfallen,as

hastheaveragepriceperbarrel.

Asaresult,theincomeperpersongeneratedbyGCCoilexports

hasbeendiminishingsincethe1970s.True,surgingdemandfrom

AmericaandAsiahasrecentlyboostedtheGulf'sshareoftrade,

butthemedium-termoutlookforoilpriesremainsweak.

Combinedwithcontinuedgrowthinoilconsumption,thisshould

createsustainedupwardpressureonprices.Andhighoilprices

willspeedthesearchforalternatives.Whoknows,in20years'

timefuelcellsandhydrogenpowermayhavestartedtobecome

commercialpropositions.

Intheeyesoftheauthor,conventionalopiniononthe

strategicimportanceoftheGulfoilis.

A.reassuring.

B.changeable.

C.paradoxical.

D.exaggerated.

17、

Bymentioning"thefiguresareaschangeableasamiragein

thedesert”,theauthoristalkingabout.

A.thewealthypeoplewholiveatopthewellsintheGulf.

B.theplanet'sfuturefossil-fuelsupplies.

C.theinconsistentestimatesonoildepositsintheGulf.

D.theoiltradedintheinternationalmarkets.

18、

Whensaying"itisstillaheftychunk”(Para.3),theauthor

impliesthat.

A.ThepeopleintheGulfwouldnotbenefitincertainways.

B.TheGulfcountriesareincomparabletothecountySwiss.

C.Continuedoilconsumptionwillcreatehighpricepressures.

D.Thesearchforotheralternativeswouldendupwith

failures.

19、

ItisgenerallybelievedthatoilproducedintheGulf.

A.willleavethelocalsinimpoverishedconditions.

B.islessthantheassessmentinaconductedresearch.

C.willdiminishtheregion,sstrategicimportance.

D.istradedratherthanconsumedbyitsproducers.

20、

Towhichofthefollowistheauthorlikelytoagree?

A.Someoftheworld'sbothersomehotspotsareneartheGulf.

B.Oilisbig,butitisnottheonlyreasontotaketheGulf

seriously.

C.Whiletheoilpricekeepsrising,theGulfisanattractive

totraders.

D.Tightenthriftregimesonoilconsumption,thesingle

remedy.

21、PartB(10points)

Thefollowingparagraphsaregiveninawrongorder.Youare

requiredtoreorganizetheseparagraphsintoacoherenttext

bychoosingfromthelistA一G.Thefirstandthelast

paragraphshavebeenplacedforyous.

A.ThestrainofHIVthatwasdiscoveredinSydneyintrigues

scientistsbecauseitcontainsstrikingabnormalitiesinagene

thatisbelievedtostimulateviralduplication.Infact,the

virusismissingsomuchofthisparticulargene一knownasnef,

fornegativefactor一thatitishardtoimaginehowthegene

couldperform,anyusefulfunction.Andsureenough,whilethe

SydneyvirusretainstheabilitytoinfectTcells—whiteblood

cellsthatarecriticaltotheimmunesystem'sabilitytoward

offinfection—itmakessofewcopiesofitselfthatthemost

powerfulmoleculartoolscanbarelydetectitspresence.

B.Ifthisspeculationprovesright,itwillmarkamilestone

inthebattletocontainthelate-20thcentury'smostterrible

epidemic.Forinadditiontoexplainingwhythissmallgroup

ofpeopleinfectedwithHIVhasnotbecomesick,thediscovery

ofaviralstrainthatworks1ikeavaccinewouldhave

far-reachingimplications."Whattheseresultssuggest”,says

Dr.BarneyGrahamofTennessee*sVanderbiltUniversity,“is

thatHIVisvulnerableandthatitispossibletostimulate

effectiveimmunityagainstit”.

C.Butassixyearsstretchedto10,thento14,theanxiety

ofhealthofficialsgavewaytoastonishment.Althoughtwoof

therecipientshavediedfromothercauses,notoneoftheman's

contaminatedbloodhascomedownwithAIDS.Moretellingstill,

thedonorisalsohealthy.Infacthisimmunesystemremains

asrobustasifhehadnevertangledwithHIVatall.Whatcould

explainsuchunexpectedgoodfortune?

D.Attheveryleast,thenefgeneoffersanattractivetarget

fordrugdevelopers.Ifitsactivitycanbeblocked,suggests

Deacon,researchersmightbeabletobringtheprogressionof

diseaseundercontrol,eveninpeoplewhohavedeveloped

full-blownAIDS.TheneedforbetterAIDS-fightingdrugswas

underscoredlastweekbytheactionsofaU.S.FoodandDrug

Administrationadvisorypanel,which,recommendedspeedy

approvaloftwonewAIDSdrugs.AlthoughFDAcommissionerDavid

Kesslerwasquicktopraisethenewdrugs,neithermedication

canpreventorcureAIDSonceithastakenhold.Whatscientists

reallywantisavaccinethatcanpreventinfectionaltogether.

Andthat,swhatmakestheSydneyvirussopromising—andso

controversial.

E.AteamofAustralianscientistshasfinallysolvedthe

mystery.Thevirusthatthedonorcontractedandthenpassed

on,theteamreportedlastweekinthejournalScience,contains

flawsinitsgeneticscript,thatappeartohaverenderedit

harmless."Notonlyhavetherecipientsandthedonornot

progressedtodiseasefor15years”,marvelsmolecular

biologistNicholasDeaconofAustralia'sMacfarlaneBurnet

CentreforMedicalResearch,“butthepredictionisthatthey

neverwill”.Deaconspeculatesthatthis"impotent"HIVmay

evenbeanaturalinoculantthatprotectsitscarriersagainst

morevirulentstrainsofthevirus.

F.Butfewscientistsareenthusiasticabouttestingthe

propositionbyinjectingHIV一howeverweakened一intomillions

ofpeoplewhohaveneverbeeninfected.Afterall,theynote,

HIVisaretrovirus,aclassofinfectiousagentsknownfor

theiralarmingabilitytointegratetheirowngenesintothe

DNAofthecellstheyinfect.Thusonceittakeseffect,a

retrovirusinfectionispermanent.

G.About15yearsago,awel1-meaningmandonatedbloodtothe

RedCrossinSydney,Australia,notknowinghehasbeenexposed

toHIV-1,thevirusthatcausesAIDS.Muchlater,publichealth

officialslearnedthatsomeofthepeoplewhogottransfusions

containinghisbloodhadbecomeinfectedwiththesamevirus;

presumablytheywerealmostsuretodie.

Order:Gisthe

22、(42)

23、(43)

24、(44)

25、(45)

26、PartC

Directions:Readthefollowingtextcarefullyandthen

translatetheunderlinedsegmentsintoChinese.(10points)

Radiationoccursfromthreenaturalsources:radioactive

materialintheenvironment,suchasinsoil,rock,orbuilding

materials;cosmicrays;andsubstancesinthehumanbody,such

asradioactivepotassiuminboneandradioactivecarbonin

tissues.Thesenaturalsourcesaccountforanexposureofabout

100milliremsayearfortheaverageAmerican.

Thelargestsinglesourceofman-maderadiationin

溫馨提示

  • 1. 本站所有資源如無(wú)特殊說(shuō)明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽,若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫(kù)網(wǎng)僅提供信息存儲(chǔ)空間,僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請(qǐng)與我們聯(lián)系,我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

評(píng)論

0/150

提交評(píng)論