英语四级练习资料快速阅读

ReadingComprehension（SkimmingandScanning）

Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthe

questions.

Forquestions/~7,choosethebestanswerfromthefourchoicesmarkedA）,B）,C）andD）.

Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.

ONE

RightandLeft-handednessinHumans

Whydohuman,quitedifferentfromtheotheranimalspecies,displayadistinctleftor

right-handedness?Notevenourclosestrelativesamongtheapes（猿）possesssuchdecidedlateral

（横向的）（不对称），aspsychologistscallit.Yetabout90percentofeveryhuman

populationthathaseverlivedappearstohavebeenright-handed.ProfessorBryanTurnerat

DeakinUniversityhasstudiedtheresearchliteratureonleft-handednessandfoundthat

handednessgoeswithsidedness.Sonineoutoftenpeopleareright-handedandeightare

right-footed.Henotedthatthisdistinctiveasymmetryinthehumanpopulationisitselfsystematic.

“Humansareabletothinkaboutthingsincategories;blackandwhite,upanddown,leftandright.

It'sasystemofsignsthatenablesustocategorizephenomenathatareessentiallyambiguous.^^

TheGeneticorInheritedElement

Researchhasshownthatthereisgeneticorinherited（继承的）elementtohandedness.But

whileleft-handednesstendstoappearinfamilies,neitherleftnorrighthanderswillautomatically

producechildrenwiththesamehandedness;infactabout6percentofchildrenwithtwo

right-handedparentswillbeleft-handed.However,amongtwoleft-handedparents,perhaps40per

centofthechildrenwillalsobeleft-handed.Withonerightandoneleft-handedparent,15to20

percentofthechildrenwillbeleft-handed.Evenamongidenticaltwinswhohaveexactlythe

samegenes,oneinsixpairswilldifferintheirhandedness.

ResearchersTurningtotheBrain

Whatthenmakespeopleleft-handedifitisnotsimplybecauseofgeneticcause?Other

factorsmustbeatworkandresearchershaveturnedtothebrainforclues.Inthe1860stheFrench

surgeonandanthropologist（人类学家），DrPaulBroca,madetheremarkablefindingthatpatients

whohadlosttheirpowersofspeechasaresultofastroke（abloodclotinthebrain）hadparalysis

（瘫痪）oftherighthalfoftheirbody.Henotedthatsincethelefthemisphere（半球）ofthebrain

controlstherighthalfofthebody,andviceversa,thebraindamagemusthavebeeninthebrain's

lefthemisphere.Psychologistsnowbelievethatamongright-handedpeople,probably95percent

havetheirlanguagecentreinthelefthemisphere,while5percenthaveright-sidedlanguage.

Left-handers,however,donotshowthereversepatternbutinsteadamajorityalsohavetheir

languagecentreinthelefthemisphere.Some30percenthaverighthemispherelanguage.

TheEvolutionofSpeechWentwithRight-handedPreference

DrBrinkman,abrainresearcherattheAustralianNationalUniversityinCanberra,has

suggestedthatevolutionofspeechwentwithright-handedpreference.AccordingtoBrinkman,as

thebrainevolved,onesidebecamespecializedfbrfinecontrolofmovement（necessaryfor

producingspeech）andalongwiththisevolutioncameright-handedpreference.Accordingto

Brinkman,mostleft-handershavelefthemispheredominancebutalsosomecapacityintheright

hemisphere.Shehasobservedthatifaleft-handedpersonisbrain-damagedinthelefthemisphere,

therecoveryofspeechisquiteoftenbetterthanaright-handedoneis.Andthisisexplainedbythe

factthatleft-handershavemorecapacityforspeechfunctionintherighthemisphere.Inher

studiesofmacaquemonkeys（短尾猴）Brinkmanhasnoticedthatprimates（monkeys）seemto

learnahandpreferencefromtheirmotherinthefirstyearoflifebutthiscouldbeonehandorthe

other.Inhumans,however,thespecializationinfunctionofthetwohemispheresresultsin

differencesinthestructureofhumanbrain;areasthatareinvolvedwiththeproductionofspeech

areusuallylargerontheleftsidethanontheright.Sincemonkeyshavenotacquiredthecapacity

fbrspeech,onewouldnotexpecttoseesuchadifference,butBrinkmanclaimstohavediscovered

atrendinmonkeystowardstheasymmetrythatisclearlyobservedinthehumanbrain.

DevelopmentoftheBrainMayLeadtoHandedness

TwoAmericanresearchers,GeschwindandGalaburda,studiedthebrainsofhumanand

discoveredthatthedifferencebetweenleftandrightasymmetryexistsbeforebirth.Butasthe

braindevelops,anumberofthingscanaffectit.Everybrainisinitiallyfemaleinitsorganization

anditonlybecomesamalebrainwhenthemalefetus（胎儿）beginstoproducehormones（荷尔

蒙）.GeschwindandGalburdaknewthatdifferentpartsofthebrainmatureatdifferentrates;the

righthemispheredevelopsfirst,thentheleft.Moreover,agirl'sbraindevelopssomewhatfaster

thanthatofaboy.So,ifsomethinghappenstothebrain'sdevelopmentduringpregnancy,itis

morelikelytobeaffectedinamaleandthehemispheremorelikelytobeinvolvedistheleft.The

brainmaybecomelessdifferentandthisinturncouldresultinleft-handednessandthe

developmentofcertainsuperiorskillsthathavetheiroriginsinthelefthemispheresuchaslogic,

rationallyandabstraction.Itshouldbenosurprisethenthatamongmathematicsandarchitects,

left-handerstendtobemorecommonandtherearemoreleft-handedmalesthanfemales.

PrejudiceagainstLeft-handedPeople

Theresultsofthisresearchmaybesomeconsolation（安慰）toleft-handerswhohavefor

centurieslivedinaworldthatisdesignedtosuitright-handedpeople.However,whatisalarming,

accordingtoMr.CharlesMoore,awriterandjournalist,isthewaytheword“right“reinforcesits

ownadvantages.

加加，（下意识土也）hesays,languagetellspeopletothinkthatanythingontherightcan

betrustedwhileanythingontheleftisdangerousorevenevil.Wespeakofleft-handed

advantages,andontheotherhandaccordingtoMoore,“itiscertainthatleft-hand,oftendevelopa

stammer（口吃）astheyarerobbedoftheirfreedomofspeech."However,asmoreresearchis

undertakenonthecausesofleft-handedness,attitudestowardsleft-handedpeoplearegradually

changingfbrthebetter.IndeedwhenthechampiontennisplayerIvanLendwasaskedwhatthe

onlyfactorhadimprovedhisgame,hesaidhewouldliketobecomealeft-hander.

1.Lateralasymmetryisatermusedbypsychologiststorefertothefactthat.

A）therearebothleftandrighthandedpeople

B）therearedistinctiveleftandrighthandedpeople

C)lessthanhalfofthepopulationisleft-handed

D)theoverwhelmingnumberofthepeopleareright-handed

2.proposedthathandednessgoeswithsidedness,evidencedbythatfactthatmostpeople

areright-handedandright-footed.

A)ProfessorBryanTurnerB)DrPaulBroca

C)DrBrinkmanD)GeschwindandGalaburda

3.Withonerightandoneleft-handedparent,ofthechildrenarelikelytobeleft-handed.

A)about40%B)about30%

C)lessthan20%D)lessthan15%

4.Howmanyoftheleft-handedpeoplehavetheirlanguagecenterinthelefthemisphere?

A)5%B)30%C)70%D)95%

5.Incaseofsufferingdamagetothelefthemisphere,farebetterintherecoveryof

speech.

A)right-handedpeopleB)left-handedpeople

C)mostright-handedpeopleD)mostleft-handedpeople

6.WhatisdiscoveredasthetrendinmonkeysaccordingtoDr.Brinkman?

A)Somemonkeyshaveacquiredthecapacityforspeech.

B)Somemonkeysdisplayhandpreference.

C)Monkeyswouldnotdevelopasymmetryintheirbrains.

D)Monkeysseemtobepickinghumanasymmetry.

7.HowdoesthebraindevelopaccordingtoGeschwindandGalaburda?

A)Themale'sbraindevelopsfasterthanthefemale'sbrain.

B)Malebrainsaremorelikelytobeaffectedinpregnancy.

C)Itishardtodeterminewhataffectsthegrowthofthebrain.

D)Hormonesplayadecisiveroleindevelopingthebrain.

8.Aboutpercentofchildrenwithtworight-handedparentswillbeleft-handed.

9.Withtwoleft-handedparents,aboutpercentofchildrenwillberight-handed.

10.Therighthalfofthebodyiscontrolledbyofthebrain.

TWO

UsingtheMindtoFightDiseases

Psychologyhasanewapplicationinthefieldofmedicine.Manydoctors,togetherwiththeir

patients,arelookingforalternativemethodsoftreatmentofphysicalproblems.Inlargehospitals

andresearchcenters,modernmethodsoftherapyseemtofocusonthephysicaldiseasewithout

consideringthepatient'smentalstate.Patientsmayfeelthattheyarebeingtreatedimpersonally,

likebrokenmachines.Somedoctorshaverecognizedthisasaproblem.Theyarenowusing

psychologicaltherapywithpatientstousetheirownmindstofighttheirdiseases.Becausethe

patientisworkingwiththemedicineandthedoctorsagainstthedisease,hisorherattitude

changes.Thepatientdoesnotwaitforthemedicineandtreatmenttocurehimorher,butinstead

thepatientjoinsinthefight.

Mentaltherapy

Thedoctorknowsthatadiseaseaffectsapatient'sbodyphysically.Thebodyofthepatient

(inthiscase,aman)changesbecauseofthedisease.Heisnotonlyphysicallyaffected,butasthe

physicianknows,healsohasanemotionalresponsetothedisease.Becausehismindisaffected,

hisattitudeandbehaviorchange.Themedicaltreatmentmightcurethepatient'sphysical

problems,butthepatient'smindmustfighttheemotionalones.Forexample,thestudiesofone

doctor,CarlSimonton,M.D.,haveshownthatatypicalcancerpatient(inthiscase,awoman)has

predictableattitudes.Shetypicallyfeelsdepressed,upset,andangry.Herself-imageispoorand

shefeelsself-pity.Asaresult,herbehaviorchanges.Becauseofherconstantdepression,sheacts

unfriendlytowardherfamily,friends,doctors,andnurses.Suchattitudesandbehaviorsprevent

thepatientfromgettingwell.Therefore,adoctor'streatmentmusthelpthepatientchangeher

attitudes.Simonton'smethodemphasizestreatmentofthewholepatientbytreatingboththebody

andthemind.

Theattitudeofacancerpatientwhoisreceivingradiationtherapy,anX-raytreatment,can

becomemorepositive.ThephysicianwhoisfollowingSimonton'spsychologicaltreatmentplan

suggeststhatthepatientimaginethatheorshecanseethetumor(肿瘤)inthebody.Inthemental

picture,thepatient"sees"apowerfulbeamofradiationlikeamillionbulletsofenergy.The

patientimaginesthebeamhittingthetumorcellsandcausingthemtoshrink.Foranothercancer

patient,Dr.Simontonmightmakeanothersuggestion.Thispatient,withadifferentkindofcancer,

needstotakecapsulesandpillsseveraltimesaday.Thedoctorasksthepatienttoimaginethe

medicinegoingfromthestomachintothebloodstreamandtothecancerceils.Thepatient

imaginesthatthemedicineislikeanarmyfightingthediseasedcellsandseesthecancercells

graduallydying.Hisorherbloodcarriesawaythedeadcells.Boththemedicaltherapyandthe

patient'spositiveattitudefightthedisease.

Doctorsarenotcertainwhythismentaltherapyworks.However,thisuseofpsychologydoes

helpsomepatientsbecausetheirattitudesaboutthemselveschange.Theybecomemoreconfident

becausetheyusethepowerwithintheirownmindstohelpstopthedisease.

Suggestiontherapy

Anotherapplicationofusingthemindtohelpcurediseaseistheuseofsuggestiontherapy.

Beforemakingthesuggestion,thedoctorhelpsthepatientstoconcentratedeeply.Thepatient(in

thiscase,aman)thinksonlyaboutonething.Hebecomessounawareofotherthingsaroundhim

thatheseemstobeasleep.Heissaidtobeintrance(昏睡).Thenthephysicianmakes”a

suggestion“tothepatientaboutthemedicalproblem.Thepatient'smindrespondstothe

suggestionevenafterthepatientisnolongerinthetrance.Inthisway,thepatientuseshismindto

helphisbodyrespondtotreatment.

Suggestiontherapyhelpfulforbothadultsandchildren

Doctorshavelearnedthatthisuseofpsychologyishelpfulforbothadultsandchildren.For

example,physicianshaveusedsuggestiontohelpadultsdealwiththestrongpainofsome

diseases.Furthermore,sometimestheadultpatient(inthiscase,awoman)worriesabouther

illnesssomuchthattheanxietykeepsherfromgettingwell.Therightsuggestionmayhelpthe

patienttostopbeinganxious.Suchtreatmentmayhelpthepatientwithachronicdisease.Asthma

(哮喘)isanexampleofachronicdisorder.Asthmaisadiseasethatcausesthepatienttohave

difficultyinbreathing.Thepatientstartstocoughandsometimeshastofighttogettheairthathe

orsheneeds.Psychologycanhelprelievethesymptomsofthisdisorder.Aftersuggestiontherapy,

theasthmapatientbreathesmoreeasily.

Physicianshavelearnedthatthepsychologicalmethodisveryusefulintreatingchildren.

Childrenrespondquicklytothetreatmentbecausetheyarefascinatedbyit.Forexample,Dr.

DavidR.Collisonhasworkedwith121asthmaticchildreninSydney,Australia,andhadgood

results.Twenty-fiveofthechildrenhadexcellentresults.Theywereabletobreathemoreeasily,

andtheydidnotneedmedication.Anotherforty-threewerealsohelped.Thesymptomsofthe

asthmaoccurredlessfrequently,andwhentheydid,theywerenotasstrong.Mostofthechildren

alsofeltbetteraboutthemselves.Doctorshavealsousedsuggestiontochangehabitslike

nail-biting,thumb-suckingandsleep-relatedproblems.

Responsefromthemedicalworld

Manyprofessionalmedicalgroupshaveacceptedthemedicaluseofpsychologybecause

theyrecognizeitsvalue.Nobodyknowshowsuggestionworks;however,doctorshavelearned

thatpsychologyhasimportantapplicationsinmedicine.

1.Whatisthepossiblefaultofmodemmethodsoftherapyaccordingtothepassage?

A)Theyfailtotakeintoconsiderationthepatient'smentalstate.

B)Theyseemtobeconfusedaboutthepatient'smentalstate.

C)Theyhavemisunderstandingaboutthephysicaldisease.

D)Theyhavetoomuchconcernforthepatient'smentalstate.

2.Workingwiththemedicineandthedoctors,patientsarehighlylikelytoexperiencesignificant

changesintheir.

A)physicalstatesB)attitudes

C)emotionalstatesD)recovery

3.WhatisNOTmentionedasapredictableattitudeofatypicalcancerpatient?

A)Energized.B)Angry.

C)Depressed.D)Upset.

4.ThemethodadvocatedbyDrSimontonfocuseson.

A)treatingthepatientasahealthyperson

B)treatingthepatientlikeafriend

C)treatingthewholepatientboththebodyandthemind

D)treatingthemindofthepatient

5.Thecancerpatientisaskedtoimaginethetumorbeingattackedbyradiationinas

providedbyDr.Simonton.

A)acancerremovaloperationB)apsychologicaltreatment

C)asuggestiontherapyD)aradiationtherapy

6.Itisimpliedfromparagraphfourthatthereactionofsomedoctorstotheeffectofmental

therapyisgenerally.

A)affirmativeB)suspicious

C)reservedD)supportive

7.isaconditionthataffectstheairwaysofthepatient,causingbreathingdifficulties.

A)AtranceB)Asthma

C)AtumorD)Mentaldisorder

8.Fromthelastpartofthepassage,wecanseebothadultsandchildrencanbenefitfrom

9.Physicianshavefoundthatchildrenmakeaquickresponsetosuggestiontherapybecause

10.Manyprofessionalmedicaldoctorshaverecognizedthevalueofpsychologicaltreatmentand

thereforetheywillingly.

Three

GeothermalEnergy

Whatdoestheword"geothermal"mean?

“Geothermal“comesfromtheGreekwordsgeo(earth)andthermo(heat).So,geothermal

meansearthheat.

Whatisgeothermalenergy?

Ourearth'sinterior-likethesun-providesheatenergyfromnature.Thisheat-geothermal

energy-yieldswarmthandpowerthatwecanusewithoutpollutingtheenvironment.

GeothermalheatoriginatesfromEarth's(炽热的)consolidationofdustandgasover4

billionyearsago.Atearth'score-4,000milesdeep-temperaturemayreachover9,000degrees

F.

HowdoesgeothermalheatgetuptoEarth'ssurface?

Theheatfromtheearth'scorecontinuouslyflowsoutward.Ittransfers(conducts)tothe

surroundinglayerofrock,themantle(地幔).Whentemperatureandpressuresbecomehigh

enough,somemantlerockmelts,becomingmagma(岩浆).Then,becauseitislighter(lessdense)

thanthesurroundingrock,themagmarises,movingslowlyuptowardtheearth'scrust,carrying

theheatfrombelow.

Sometimesthehotmagmareachesallthewaytothesurface,whereweknowitaslave(熔

岩).Butmostoftenthemagmaremainsbelowearth'scrust,heatingnearbyrockandwater

(rainwaterthehasseepeddeepintotheearth)-sometimesashotas700degreesF.Someofthis

hotgeothermalwatertravelsbackupthroughfaultsandcracksandreachestheearth'ssurfaceas

hotspringsorgeysers,butmostofitstaysdeepunderground,trappedincracksandporous(有孔

的)rock.Thisnaturalcollectionofhotwateriscalledageothermalreservoir(/$).

Howhavepeopleusedgeothermalenergyinthepast?

Fromearliesttimes,peoplehaveusedgeothermalwaterthatflowedfreelyfromtheearth's

surfaceashotsprings.Theoldestandmostcommonusewas,ofcourse,justrelaxinginthe

comfortingwarmwaters.Buteventually,this“magicwater“wasused(andstillis)inother

creativeways.TheRomans,forexample,usedgeothermalwatertotreateyeandskindiseaseand,

atPompeii,toheatbuildings.Asearlyas10,000yearsago,NativeAmericansusedhotsprings

waterforcookingandmedicine.ForcenturiestheMaorisofNewZealandhavecooked

4tgeo-thermally,\and,sincethe1960s,Francehasbeenheatingupto200,000homesusing

geothermalwater.

Howdoweusegeothermalenergytoday?

Todaywedrillwellsintothegeothermalreservoirstobringthehotwatertothesurface.

Geologists,geochemists,drillersandengineersdoalotofexploringandtestingtolocate

undergroundareasthatcontainthisgeothermalwater,sowe'llknowwheretodrillgeothermal

productionwells.Then,oncethehotwaterand/orsteamtravelsupthewellstothesurface,they

canbeusedtogenerateelectricityingeothermalpowerplantsorforenergysavingnon-electrical

purposes.

Whataresomeoftheadvantagesofusinggeothermalenergytogenerateelectricity?

Clean.Geothermalpowerplants,likewindandsolarpowerplants,donothavetoburnfuels

tomanufacturesteamtoturntheturbines（涡车仑机）.Generatingelectricitywithgeothermalenergy

helpstoconservenonrenewablefossilfuels,andbydecreasingtheuseofthesefuels,wereduce

emissionsthatharmouratmosphere.Thereisnosmokyairaroundgeothermalpowerplants-in

factsomearebuiltinthemiddleoffarmcropsandforests,andsharelandwithcattleandlocal

wildlife.

Fortenyears,LakeCountyCalifornia,hometofivegeothermalelectricpowerplants,has

beenthefirstandonlycountrytomeetthemoststrictgovernmentalairqualitystandardsinthe

U.S.

Easyontheland.Thelandarearequiredforgeothermalpowerplantsissmallerper

megawattthanforalmosteveryothertypeofpowerplant.Geothermalinstallationsdon'trequire

dammingofriversorharvestingofforests-andtherearenomineshafts,tunnels,openpits,waste

heapsoroilspills.

Reliable.Geothermalpowerplantsaredesignedtorun24hoursaday,allyear.Ageothermal

powerplantsitsrightontopofitsfuelsource.Itisresistanttointerruptionsofpowergeneration

duetoweather,naturaldisastersorpoliticalriftsthatcaninterrupttransportationoffuels.

Flexible.Geothermalpowerplantscanhavemodular（模块（Kj）designs,withadditionalunits

installedinincrements（增额）whenneededtofitgrowingdemandfbrelectricity.

KeepsDollarsatHome.Moneydoesnothavetobeexportedtoimportfuelforgeothermal

powerplants.Geothermal“fuel”-likethesunandthewind-isalwayswherethepowerplantis;

economicbenefitsremainintheregionandtherearenofuelpriceshocks.

HelpsDevelopingCountriesGrow.Geothermalprojectscanofferalloftheabovebenefitsto

helpdevelopingcountriesgrowwithoutpollution.Andinstallationsinremotelocationscanraise

thestandardoflivingandqualityoflifebybringingelectricitytopeoplefarfrom“electrified”

populationcenters.

Howmuchelectricityisfromgeothermalenergy?

Sincethefirstgeothermally-generatedelectricityintheworldwasproducedatLarderello,

Italy,in1904,theuseofgeothermalenergyfbrelectricityhasgrownworldwidetoabout7,000

megawattsintwenty-onecountriesaroundtheworld.TheUnitedStatesaloneproduces2,700

megawattsofelectricityfromgeothermalenergy,electricitycomparabletoburningsixtymillion

barrelsofoileachyear.

Howmuchgeothermalenergyisthere?

Thousandsmoremegawattsofpowerthanarecurrentlybeingproducedcouldbedeveloped

fromalready-identifiedhydrothermal（热液的）resources.Withimprovementsintechnology,

muchmorepowerwillbecomeavailable.Usablegeothermalresourceswillnotbelimitedtothe

“shallow“hydrothermalreservoirsatthecrustalplateboundaries.Muchoftheworldisunderlain

(3-6milesdown),byhotdryrock-nowater,butlotsofheat.ScientistsintheU.S.A.,Japan,

England,France,GermanyandBelgiumhaveexperimentedwithpipingwaterintothisdeephot

rocktocreatemorehydrothermalresourcesforuseingeothermalpowerplants.Asdrilling

technologyimproves,allowingustodrillmuchdeeper,geothermalenergyfromhotdryrock

couldbeavailableanywhere.Atsuchtime,wewillbeabletotapthetruepotentialofthe

enormousheatresourcesoftheearth'scrust.

1.Thewordof“geothermal"originatedfrom.

A)GermanicB)EgyptianC)GreekD)Latin

2.Whenmagmarisestowardstheearth'scrust,it.

A)becomeshotterB)becomesdense

C)bringsheatfrombelowD)bringsrocksfrombelow

3.Whenmagmareachesthesurfaceoftheearth,itbecomes.

A)hotspringsB)geysersC)areservoirD)lava

4.Mostcommonly,peopleusedgeothermalwaterfor.

A)relaxationB)electricityC)producingenergyD)scientificresearch

5.Peopleinusedgeothermalwaterforthesamepurpose.

A)RomeandPompeiiB)PompeiiandFrance

C)FranceandNewZealandD)NewZealandandRome

6.Geothermalpowerplantscanbebuiltinthemiddleofforeststhankstotheiradvantageof

A)beingcleanB)beingrenewableC)beingeasytorunD)beingspace-efficient

7.LakeCountyCaliforniahasbeentheonlycountythatisapprovedbythegovernmentforits

A)housingstandardsB)livingstandardsC)waterqualityD)airquality

8.Ageothermalpowerplantiseconomicallybeneficialbecauseitgetsitsfrom

whereitis.

9.LarderelloinItalywasthecitywheretheearliestwas

produced.

10.Withtheimprovementindrillingskills,wewillbeabletogetmoregeothermalenergyby

pipingwaterintothe.

FOUR

HealthyEating

Healthyeatingandbeingphysicallyactivearekeystoahealthylifestyle.Youmayreduce

yourriskofmanychronicdiseasessuchasheartdisease,diabetes,osteoporosisandcertain

cancers,andincreaseyourchancesoflivinglonger.Thisarticlehelpsyounavigatethemazeof

newFoodPyramidsandguidelinesavailableandhelpsyoudevelopahealthydietplanthatisbest

foryourneeds.

Whatarethebenefitsofahealthydiet?

Ahealthydietisoneofthemostimportantwaysyoucanmaintainanactivelifestyleand

protectagainsthealthproblems.Healthyeatingincreasesenergy,improvesthewayyourbody

functions,strengthensyourimmunesystemandthwartsweightgain.

Ahealthydiethelpsyou:

Meetyournutritionalneeds.Avaried,balanceddietprovidesthenutrientsyouneedtoavoid

nutritionaldeficiencies.Non-nutrients,suchasfiber,arealsonecessarytoahealthydiet.

Preventandtreatcertaindiseases.Healthfuleatingcanpreventtheriskofdevelopingcertain

diseasessuchascancerandheartdisease.Itisalsohelpfulintreatingdiabetesandhighblood

pressure.Followingaspecialdietcanreducesymptoms,andmayhelpyoubettermanagean

illnessorcondition.

Enjoylife.Foodisthemainstayofmanysocialandculturalevents.Notonlydoesitprovide

nutrition,ithelpsfacilitateconnectionsbetweenpeople.Cookingfresh,healthymealscanalsobe

anenjoyablewaytospendtime,eitheronyourownorwithothers.

Feelenergeticandmanageyourweight.Ahealthydietcanhelpyoufeelbetter,provideyou

withmoreenergy,andhelpyoufightstress.

Whataresomegeneralguidelinesforhealthyeating?

Don'tskipmeals.Planyourdailymealsandsnacks.Forhealthyeating,ifyourweightis

normal,enjoythreemealsandtwoadditionalsnacksifyou'rehungryinbetweenmealtimes.

Learnsimplewaystopreparefood.Healthyeatingdoesn'thavetomeancomplicatedeating.

Keepmealpreparationeasy,eatmorerawfoodssuchassaladsandvegetablejuices,andfocuson

thepleasureofeatinghealthyfoodratherthanthecalories.

Avoideatingmoresugar.Ifyoufeeltiredintheafternoon,reachforfruits,veggiesorahigh

proteinsnackra