《大學(xué)英語(yǔ)四級(jí)閱讀200篇》前40篇

書(shū)名：《大學(xué)英語(yǔ)四級(jí)閱讀200篇》前40篇

出版社：上海交通大學(xué)出版社

1/200.

Therearethreekindsofgoals:short-term,medium-rangeandlong-termg

oals.

Short-rangegoalsarethosethatusuallydealwithcurrentactivities,which

wecanapplyonadailybasis.SuchgoalscanbeachievedinaweekorI

ess,ortwoweeks,orpossiblemonths.Itshouldberememberedthatjust

asabuildingisnostrongerthanitsfoundation,outlong-termgoalscann

otamounttoverymunchwithouttheachievementofsolidshort-termgoal

s.Uponcompletingourshort-termgoals,weshoulddatetheoccasionand

thenaddnewshort-termgoalsthatwillbuildonthosethathavebeenco

mpleted.

Theintermediategoalsbukldonthefoundationoftheshort-rangegoals.Th

eymightdealwithjustonetermofschoolortheentireschoolyear,orth

eycouldevenextendforseveralyears.Anytimeyoumoveastepatati

me,youshouldneverallowyourselftobecomediscouragedoroverwhelme

d.Asyoucompleteeachstep,youwillenforcethebeliefinyourabilityto

growadnsucceed.Andasyourlistofcompletiondatesgrow,yourmotiv

ationanddesirewillincrease.

Long-rangegoalsmayberelatedtoourdreamsofthefuture.Theymight

coverfiveyearsormore.Lifeisnotastaticthing.Weshouldneverallow

along-termgoaltolimitusorourcourseofaction.

1.Ourlong-termgoalsmeanalot__.

a.ifwecompleteourshort-rangegoals

b.ifwecannotreachsolidshort-termgoals

c.ifwewritedownthedates

d.ifweputforwardsomeplans

2.Newshort-termgoalsarebulidupon_.

a.twoyears

b.long-termgoals

c.currentactivities

d.thegoalsthathavebeencompleted

3.Whenwecompleteeachstepofourgoals,_.

a.wewillwinfinalsuccess

b.weareoverwhelmed

c.weshouldbuildupconfidenceofsuccess

d.weshouldstrongdesireforsettingnewgoals

4.Onceourgoalsaredrawnup,―.

a.weshouldsticktothemuntilwecompletethem

b.wemaychangeourgoalsaswehavenewideasandopportunities

c.wehadbetterwaitfortheexcitingnewsofsuccess

d.wehavemadegreatdecision

5.Itisimpliedbutnotstatedinthepassagethat___.

a.thosewhohabelong-termgoalswillsucceed

b.writingdownthedatesmaydiscourageyou

c.thegoalisonlyaguideforustoreachourdesination

d.everyshouldhaveagoal

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TheeconomyoftheUnitedstatesafter1952wastheeconnomyofawell-

fed,almostfullyemployedpeople.Despitoccasionalalarms,thecountryes

capedanypostwardepressionandlivedinastateofboom.Aneconomic

surveyoftheyear1955,atypicalyearofthe19505s,maybetypicalasi

llustratingtherapideconomicgrowthofthedecade.Thenationaloutputw

asvalueat10percentabovethatof1954(1955outputwasestimatedat

392billiondollars).Theproductionofmanufacturerswasabout40percen

tmorethanithadaveragedintheyearsimmediatelyfollowingWorldWar

2.Thecountry'sbusinessspentabout30billiondollarsfornewfactoriesa

ndmachinery.Nationalincomeavailableforspendingwasalmostathirdg

reaterthanithadbeenithadbeenin1950.Consumersspentabout256

billiondollars;thatisabout700milliondollarsaday,orabouttwenty-five

milliondollarseveryhour,allroundtheclock.Sixty-fivemillionpeopleh

eldjobsandonlyalittlemorethantwomillionwantedjobsbutcouldnot

findthem.Onlyagriculturecomplainedthatitwasnotsharingintheroo

m.Tosomeobserversthiswasanominousechoofthemid-1920Js.Asfa

rmer'sshreoftheirproductsdeclined,marketingcostsrose.Buttherewe

re,amongtheobserversofthenationaleconomy,afewwhowerenotas

confidentasthemajority.Thosefewseemedtofearthattheboomcoul

dnotlastandwouldeventuallyleadtotheoppsite-depression.

1.Whatisthebesttitleofthepassage?

a.TheAgriculaturalTrendsof195018

b.TheUnemploymentRateof1950's

c.U.S.Economyinthe50's

d.TheFederalBudgetof1952

2.InLine4,theword“boom”couldbestbereplacedby.

a.nearbyexplosion

b.thunderousnoise

c.generalpublicsupport

d.rapideconomicgrowth

3.Itcanbeinferredthenationalfromthepassagethatmostpeopleinth

eUnitedStatesin1955viewedthenationaleconomywithanairof

a.confidence

b.confusion

c.disappointment

d.suspicion

4.WhichofthefollowingwereLEASTsatisfiedwiththenationaleconomyi

nthe1950's?

a.Economists

b.Frmaers

c.Politicians

d.Steelworkers

5.ThepassagestatesthatincomavailableforspendingintheU.S.wasgr

eaterin1955thanin1950.Howmuchwasit?

a.60%

b.50%

c.33%

d.90%

2/200答案：cdabc

3/200

Womenarealsounderrepresentedintheadministrationandthisisbecaus

etherearesofewwomenfullprofessors.In1985,RegentBerylMilburnpr

oducedareportblastingtheUniversityofTexasSystemadminitrationfor

notencouragingwomen.TheUniversitywasratedamongthelowestforthe

system.Ina1987update.Milburncommendedtheprogressthatwasmad

eandcalledforevenmoreimprovement.

OneofthepositiveresultsfromherstudywasaSystem-wideprogramto

informwomenofavailableadministrativejobs.

CollegeofCommunicationAssociateDeanPatricaWitherspoon,saiditisim

portantthatwomanbeflexiblewhenitcomestorelocatingiftheywantto

riseintheranks.

Althoughawomanmayfaceachillyclimateoncampus,manytimesino

rderforhertosucceed,shemustriseabovetheproblemsaroundheran

dconcentrateonherwork.

Untilwomenmakeupagreaterpercentageoftheseniorpositionsinthe

Universityandallacademia,inequitieswillexist.

"Womenneedtospendtheirenergiesandtimedoingscholarlyactivitiest

hatareimportanthereattheUniversity.'*Spirdusosaid."Iftheydothat

willbesuccessfulinthissystem.Iftheyspendtheirtimeinlittlegroupsm

ourningthesexualdiscriminationthattheythinkexistshere,theyarewas

tingvaluablestudytime."

1.AccordingtoSpirduso,womenneedto___.

duceareportonsexualdiscrimination

b.callforfurtherimprovementintheirworkingconditions

c.spendtheirenergiesandtimefightingagainstsexualdiscrimination

d.spendmoretimeandenergydoingscholarlyactivities

2.Fromthispassage,weknowthat.

a.therearemanywomenfullprofessorsintheUniversityofTexas

b.womenplayanimportantpartinadminitratingtheUniversity

c.theweatheronthecampusischilly

d.womenmakeupasmallpercentageoftheseniorpositionsintheUniver

sity

3.Whichofthefollowingstatementsistrue?

a.thenumberofwomenprofessorsintheUniversityin1987wasgreatert

hanthatof1985

b.thenumberofwomenprofessorsintheUniversityin1987wassmallert

hanthatof1985

c.thenumberofwomenprofessorswasthesameasthatof1985

d.moreandmorewomenprofessorsthoughtthatsexualdiscriminationdid

exitintheUniversity

4.OneofthepositiveresultsfromMilburn'sstudywasthat.

a.womenweretoldtoconcentrateonteirwork

b.womenweregiveninformationaboutavailableadministrativejobs

c.womenwereencouragedtotakeonalltheadministrativejobsintheUn

versity

d.womenwereencouragedtodomorescholarlyactivities

5.Thetitleforthispassageshouldbe.

a.TheUniversityofTexas

b.Milburn'sReport

c.WomenProfessors

d.SexualDiscriminationinAcademia

3/200答案：ddabd

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Today,asineveryotherdayoftheyear,morethan3000U.S.adlescents

willsmoketheirfirstcigaretteontheirwaytobecomingregularsmokers

asadults.Duringtheirlifetime,itcanbeexpectedthatofthese3000abou

t23willbemurdered,30willdieintrafficaccidents,andnearly750willb

ekilledbyasmoking-relateddisease.Thenumberofdeathsattributedto

cigarettesmokingoutweithtsallotherfactors,whethervoluntaryorinvolun

tary,asacauseofdeath.

Sincethelate1970s,whendailysmokingamonghighschoolseniorsreach

ed30precent,smokingratesamongyouthhavedeclined.Whilethedeci

ineisimpressive,severalimportantissuesmustberaised.

First,inthepastseveralyears,smokingratesamongyouthhavedeclined

verylittle.Second,inthelate1970s,smokingamongmalehighschoolsen

iorsexceededthatamongfemalebynearly10percent.Thestatisticisre

versing.Third,severalrecentstudieshaveindicatehighschooldropoutsha

veexcessivelyhighsmokingrates,asmuchas75percent.

Finally,thouthsignificantdeclinesinadolescentsmokinghaveoccurredin

thepastdecade,nodefinitereasonsforthedeclineexist.Withinthisconte

xt,theNaionalCancerInstiute(NCI)beganitscurrentefforttodeterminet

hemosteffecivemeasurestoreducesmokingleveslamongyouth.

1.Accordingtotheauthor,thedeathsamongyoutharemainlycausedby

a.trafficaccidents

b.smoking-relateddesease

c.murder

d.allofthese

2.Everydaythereareover____highschoolstrdentswhowillbecomereg

ularsmoker.

a.75b.23c.30d.3000

3.By"dropout"theauthormeans.

a.studentswhofailedtheexamination

b.studentswholeftschool

c.studentswholosttheirway

d.studentswhoweredrivenoutofschool

4.Thereasonfordecliningadolescentsmokingisthat.

a.NCIhastakeneffectivemeasures

b.smokingispreventedamonghighschoolseniors

c.therearemanysmokerswhohavediedofcancer

d.noneofthese

5.Whatisimpliedbutnotstatedbytheauthoristhat.

a.smokingratesamongyouthhavedeclinedverylittle

b.therearenowmorefemalethanmalesmokersamonghighschoolseni

ors

c.highsmokingratesareduetotheincreaseinwealth

d.smokingathighschoolarefromlowsocio-economicbackgrounds

4/200答案:bdbdb

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Thefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsc

iencehasmadeenormousstepsinmakingfoodmorefittoeat,ithas,at

thesametime,mademanyfoodsunfittoeat.Someresearchhasshownt

hatperhapseightypercentofallhumanillnessesarerelatedtodietandf

ortypercentofcancerisrelatedtothedietaswell,especiallycancerofth

ecolon.Differentculturesaremorelikelytocausecertaindifferentillness

esbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodis

relatedtoillnessisntoanewdiscovery.In1945,about35yearsago,go

vernmentresearchersrealizedthatnitrates,commonlyusedtopreserveco

lorinmeats,andotherfoodadditivies,causedcancer.Yet,thesecarcinogen

icadditivesremaininourfood,anditbecomesmoredifficultallthetime

toknowwhichthingsonthepackaginglabelsofprocessedfoodarehelpfu

Iorharmful.Theadditiveswhichweeatarenotallsodirect.Farmersoft

engivepenicillintobeefandlivinganimals,andbecauseofthis,penicillin

hasbeenfoundinthemilkoftreatedcow.Sometimessimilardrugsare

giventoanimalsnotformedicalpurposes,butforfinancialreasons.Thefa

rmersaresimplytryingtofattentheanimalsinordertoobtainahigherp

riceonthemarket.AlthoughtheFoodandDrugAdministration(FDA)hast

riedrepeatedlytocontroltheseprocedures,thepracticescontinue.

1.Whatisthebestpossibletitleofthepassage?

a.DrugandFood

b.CancerandHealth

c.FoodandHealth

d.HealthandDrug

2.WhichofthefollowingstatementsisNOTture?

a.Drugsarealwaysgiventoanimalsformedicalreasons

b.Someoftheadditivesinourfoodareaddedtothefooditselfandsome

aregiventothelivinganimals

c.Researchershaveknownaboutthepotentialdangersoffoodadditivesfo

roverthirty-fiveyears.

d.Foodmaycausefortypercentofcancerinworld.

3.Howhassciencedonesomethingharmfultomankind?

a.Becauseofscience,diseasescausedbypollutedfoodhavenbeenvirtual

lyeliminated.

b.lthascausedalackofinformationconcerningthevalueoffood.

c.Becauseoftheapplicationofscience,somepotentiallyharmfulsubstances

havebeenaddedtofood.

d.Thescientistshavepreservedthecolorofmeats,butnotofvegetables.

4.Whatarenitratesusedfor?

a.Theypreserveflavorinpackagedfoods.

b.Theypreservethecolorofmeats.

c.Theyaretheobjectsofresearch.

d.Theycausetheanimalstobecomefatter.

5.Theword'carcinogenic'mostnearlymeans'

a.trouble-making

b.color-retaining

c.money-making

d.cancer-causing

5/200答案：cacbd

6/200

Asthepaceoflifecontinuestoincrease,wearefastlosingtheartofrela

xation.Onceyouareinthehabitofrushingthroughlift,beingonthegofr

ommorningtillnight,itishardtoslowdown.Butrelaxationisessentialf

orahealthymindandbody.

Stressisannaturalpartofeverydayliftandthereisnowaytoavoidit.I

nfact,itisnotthebadthingitisoftensupposedtobe.Acertainamount

ofstressisvitaltoprovidemotivationadngivepurposetolife.Itisonly

whenthestressgetsoutofcontrolthatitcanleadtopoorperformancea

ndillhealth.

Theamountofstressapersoncanwithstanddependsverymuchonthei

ndividual.Somepeoplearenotafraidofstress,andsuchcharactersareob

viouslyprimematerialformanagerialresponsibilities.Othersloseheartat

thefirstsignsofunusualdifficulties.Whenexposedtostress,inwhateverf

orm,wereactbothchemicallyandphysically.Infactwemakechoicebetw

een"fight*'or"flight"andinmoreprimitivedaysthechoicemadethediffe

rencebetweenlifeordeath.Thecriseswemeettodayareunlikelytobes

oextreme.buthoweverlittlethestress,itinvolvesthesameresponse.Itis

whensuchareactionlastslong,throughcontinuedexposuretostress,that

healthbecomesendangered.Suchseriousconditionsashighbloodpressur

eandheartdiseasehaveestablishedlinkswithstress.Sincewecannotre

movestressfromourlives(itwouldbeunwisetodosoevenifwecould),

weneedtofindwaystodealwithit.

1.Peoplearefindinglessandlesstimeforrelaxingthemselvesbecause___

a.theydonotknowhowtoenjoythemselves

b.theydonotbelievethatrelaxationisimportantforhealth

c.theyaretravellingfastallthetime

d.theyarebecomingbusierwiththeirwork

2.Accordingtothewriter,themostimportantcharacterforagoodmanag

erishis.

a.notfearingstress

b.knowingtheartofrelaxation

c.highsenseofresponsibility

d.havingcontroloverperformance

3.Whichofthefollwingstatementsisture?

a.Wecanfindsomewaystoavoidstress

b.Stressisalwaysharmfultopeople

c.ltiseasytochangethehagitofkeepingoneselfbusywithwork.

d.Differentpeoplecanwithstanddifferentamountsofstress

4.InParagraph3,“suchareaction"refersbackto.

a."makingachoicebetween'flight'or'fight'"

b."reactiontostressbothchemicallyandphysically',

c."respondingtocrisesquickly"

d."losingheartatthesignsdifficulties',

5.Inthelastsentenceofthepassage,"doso"refersto

a.Hexposeourselvestostress*'

b/'findwaystodealwithstress'*

c.nremovestressfromourlives"

d."establishedlinksbetweendiseasesandstress"

6/200答案：dadbc

Inthe1960s,manyyoungAmericansweredissatisfiedwithAmericansoci

ety.TheywantedtoendtheVietnamWarandtomakeallofthepeoplei

ntheU.S.epual.Someofthemdecidedto"dropout"ofAmericansociety

andformtheirownsocieties.Theyformedutopiancommunities,which

theycalled"communes,*'wheretheycouldfollowtheirphilosophyofHdoy

ourownthing.'tAgroupofartistsfoundedacommuneinsouthernColora

docalled"DropCity."FollowingtheideasofphilosopherandarchitectBuc

kminsterFullertheybuiltdomeshapedhousesfrompiecesofoldcars.Oth

ergroups,suchasauthorKenKesey*sMerryPranksters,thefollowersfo

SanFranciscopoetSteveGakin,andagroupthatcalleditselftheHogFar

m,livedinoldschoolhusesandtraveledaroundtheUnitedStates.TheH

ogFarmbecomefamouswhentheyhelpedorganizetheWoodstockRockF

estivalin1969.SteveGaskin'sfollowerstriedtosettledownonafarmin

Tennessee,buttheyhadtoleavewhensomemembersofthegruopwere

arrestedforgrowingmarijuana.

Notallcommunesbelievedinthephilosophyof"doyouownthing,*'howe

ver.TwinOaks,acommunefoundedinVirgianiainthelate1960s,was

basedontheideasofpsychologistB.F.Skinner.ThepeoplewholivedatT

winOakswerecarefullycontrolledbySkinner'sconditioning'*techniquest

odothingsthatweregoodforthecommunity.In1972,ItalianarchitectP

aoloSoleribegantobuildArcosanti,autopiancityArizsonawhere2500p

eoplewilllivecloselytogetherinonelargebuildingcalledan"archology'*

Soleribelievesthatpeoplemustlivecloselytogethersothattheywillallb

ecomeone.

1.WhydidsomeyoungAmericansdecideto"dropout*'ofscoietyduringth

e1960s?

a.TheywerenotsatisfiedwithAmericansociety.

b.Theywantedtogrowmarijuana.

c.TheywantedtogototheVietnamWar.

d.Theydidnotwantallpeopletobeequal.

2.WheredidthemembersoftheHogFarmcommunelive?

a.Indome-shapedhouse

b.lnoldschoolhuses

c.OnafarminTennessee

d.lnanarchologyinArizona

3.WhogavethepeopleofDropCitytheideatobuliddome-shapedhouse?

a.PaoloSoleri

b.B.G.Skinner

c.SteveGaskin

d.BuckminsterFuller

4.WhatwastheTwinOakscommunebaseon?

a.Thephilosophyof"doyourownthing"

b.Virginaiainthelate1960s

c.Theideasofpsychologist

d.Thebeliefthatpeoplemustlivecloselytogerher.

5.Whatisan"archology"?

a.Apersonwhostudiesarchaeology

b.Alargebuildingwherepeoplelivecloselytogether

c.AcityinArizona

d.Atechniquetocontorlpeople

7/200答案：abdcb

8/200

Therearetwofactorswhichdetermineanindividual'sintelligence.Thefirst

isthesortofbrainheisbornwith.Humanbrainsdifferconsiderably,so

mebeingmorecapablethanothers.Butnomatterhowgoodabrainheh

astobeginwith,anindividualwillhavealoworderofintelligenceunless

hehasopportunitiestolearn.Sothesecondfactoriswhathappenstothe

individual—thesortofenvironmentinwhichheisreared.Ifanindividual

ishandicappedenvionmentally,itislikelythathisbrainwillfailtodevelop

andhewillneverattainthelevelofintelligenceofwhichheiscapable.

Theimportanceofenvironmentindetermininganindividual'sintellingence

canbedemonstratedbythecasehistoryoftheidenticaltwins,Peterand

MarkX.Beingidentical,thetwinshadidenticalbrainsatbirth,andtheirg

rowthprocesseswerethesame.Whenthetwinswerethreemonthsold,

theirparentsdied,andtheywereplacedinseparatefosterhomes.Peter

wasreatedbyparentsoflowintelligenceinanisolatedcommunitywithpo

oreducationalpooprtunities.Markwasrearedinthehomeofwell-to-dopar

entswhohadbeentocollege.Hewasreadtoasachild,senttogoodsc

hools,andgiveneveryopportunitytobestimulatedintellectually.Thisenvir

omentaldifferencecontinueduntilthetwinswereintheirlateteens,when

theyweregibentesetstomeasuretheirintelligence.Mark*sI.Q.was125,

twenty-fivepointshigherthantheaverageandfullyfortypointshigherth

anhisidenticalbrother.Givenequalopportunities,thetwins,havingide

nticalbrains,wouldhavetestedatroughlythesamelevel.

1.Thisselectioncanbestbetitled.

a.MeasuringYourIntelligence

b.IntelligenceandEnvironment

c.TheCaseofPeterandMark

d.HowthebrainInfluencesIntelligence

2.Thebeststatementofthemainideaofthispassageisthat.

a.humanbrainsdifferconsiderably

b.thebrainapersonisbornwithisimprotantindetermininghisintelligen

ce

c.environmentiscrucialindeterminingaperson'sintelligence

d.personshavingidenticalbrainswillhaveroughlythesameintelligence

3.Accordingtothepassage,theaverageI.Q.is.

a.85

b.100

c.110

d.125

4.Thecasehistoryofthetwinsappearstosupporttheconclusionthat

a.individualwithidenticalbrainsseldomtestatsamelevel

b.anindividual'sintelligenceisdeterminedonlybyhisenviroment

c.lackofopportunityblocksthegrowthofintelligence

d.changesofenviromentproducechangesinthestructureofthebrain

5.ThispassagesuggeststhatanindividualtsI.Q._____.

a.canbepredictedatbirth

b.staysthesamethrouthouthislife

c.canbeincreasedbyeducation

d.isdeterminedbyhischildhood

8/200答案：bcbcc

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Asshewalkedroundthehugedepartmentstore,Edithreflectedhowdifficul

titwastochooseasuitableChristmaspresentforherfather.Shewishtha

thewasaseasytopleaseashermother,whowasalwaysdelightedwith

perfume

Besides,shoppongatthistimeoftheyearwasamostdisgreeableexperien

ce:peopletrodonyourtoes,pokedyouwiththeirelbowsandalmostknoc

kedyouoverintheirhastetogettoabargainaheadofyou.

Partlytohavearest,Edithpausedinfrontofacounterwheresomeattra

civetieswereondisplay."Theyarerealsilk,*'theassistantassuredher,t

ryingtotempther."Worthdoubletheprice.nButeditknewfrompastexp

eriencethatherchoiceoftieshardlyeverpleasedherfather.

Shemovedonreluctantlyandthenquitebychance,stoppedwhereasma

IIcrowdofmanhadgatheredroundacounter.Shefoundsomegoodqual

itypipesonsale-----andthepriceswereveryreasonable.Edithdidnothe

sitateforlong:althoughherfatheronlysmokedapipeoccasionally,she

knewthatthiswasapresentwhichwasbundtopleasehim.

Whenshegothome,withhersmallwell-chosenpresentconcealedinherh

andbag,herparentswerealreadyatthesuppertable.Hermotherwasin

anespeciallycheerfulmood,"Yourfatherhasatlasttodecidedtostops

moking."Sheinformedherdaughter.

1.Edith*sfather.

a.didnotlikepresent

b.nevergotpresent

c.preferredties

d.wasdifficulttochooseapresentfor

2.TheassistantspoketoEdithbecausesheseemed

a.attractive

erestedinties

c.tired

d.inneedofcomfort

3.Edithstoppedatthenextcounter.

a.purosely

b.suddenly

c.unwillingly

d.accidentally

4.Edith'sfathersmokedapipe.

a.whenhewasobliged

b.onsocialoccasions

c.fromtimetotime

d.whenhewasdelighted

5.Shoppingwasverydisagreeableatthattimeoftheyearbecause

a.coustomerstrodoneachother*stoes

b.coustomerspokedeachotherwiththeirelbows

c.customersknockedeachother

d.customersweredoingtheirshoppinginagreathurry

9/200答案：dbdcd

10/200

Ifthepopulationoftheearthgoesonincreasingatitspresentrate,there

willeventuallynotbeenoughresourceslefttosustainlifeontheplanet.B

ythemiddleofthe21stcentury,ifpresenttrendscontinue,wewillhaveu

sedupalltheoilthatdrivesourcarsjorexample.Evenifscientistsdevelo

pnewwaysoffeedingthehumanrace,thecrowdedconditionsonearthwi

IImakeitnecessaryforlustolookforopenspacesomewhereelse.Butn

oneoftheotherplanetsinoursolarsystemarecapableofsupportinglife

atpresent.Onepossiblesolutiontotheproblem,however,hasrecentlybe

ensuggestedbyAmericanscientist,ProfessorCarlSagan.

Saganbelievesthatbeforetheearth'sresourcesarecompleetelyexhauste

ditwillbepossibletochangetheatmophereofVenusandsocreateane

wworldalmostaslargeasearthitself.ThedifficultisthatVenusismuch

hotterthantheearthandthereisonlyatinyamountofwaterthere.

Saganproposesthatalgaeorganismsthatcanliveinextremelyhotorcol

datmospheresandatthesametimeproduceoxygen,shouldbebredinco

nditionsimilartothoseonVenus.Assoonasthishasbeendone,thealga

ewillbeplacedinsmallrockets.SpaceshipwillthenflytoVenusandfire

therocketsintotheatmosphere.Inafairlyshorttime,thealgewillbreak

downthecarbondioxideintooxygenandcarbon.

Whenthealgaehavedonetheriwork,theatmospherewillbecomecooler,

butbeformancansetfootonVenusitwillbeneccessaryfortheoxygen

toproducerain.ThesurfaceoftheplanetwillstillbetoohotformantoI

andonitbuttherainwilleventuallyfallandinafewyearssomethinglik

eearthwillbereproducedonVenus.

1.Intelongrun,themostinsolubleproblemcausedbypopulationgrowtho

nearthwillprobablybethelackof.

a.food

b.oil

c.space

d.resources

2.CarlSaganbelievesthatVenusmightbecolonizedfromearthbecause_

a.itmightbepossibletochangeitsatmosphere

b.itsatmosphereisthesameastheearth's

c.thereisagoodsupplyofwateronVenus

d.thedaysonVenusarelongenough

3.OnVenusthereisalotof.

a.water

b.carbondioxide

c.carbonmonoxide

d.oxygen

4.Algaeareplantsthatcan___.

a.liveinveryhottemperatures

b.liveinverycoldtemperatures

c.manufactureoxygen

d.alloftheabove

5.MancanlandonVenusonlywhen.

a.thealgaehavedonetheirwork

b.theatmospherebecomescooler

c.thereisoxygen

d.itrainsthere

10/200答案：cabdd

11/200

Whatisyourfavouritecolour?Doyoulikeyellow,orange,red?Ifyoudo

,youmustbeanoptimist,aleader,anactivepersonwhoenjoyslife,peo

pieandexcitement.Doyouprefergreysandblues?Thenyouareprobabl

yquiet,shy,andyouwouldratherfollowthanlead.Youtendtobeapessi

mist.Atleast,thisiswhatpsychologiststellus,andtheyshouldknow,bee

ausetheyhavebeenseriouslystudyingthemeaningofcolourspreference,

aswellastheeffectthatcolourshaveonhumanbeings.Theytellsus,a

mongotherfacts,thatwedonotchooseourfavouriteclouraswegrowup

——wearebornwithourpreference.Ifyouhappentolovebrown,youdid

so,assoonasyouopenedyoureyes,oratleastassoonasyoucouldse

eclearly.

Coloursdoinfluenceourmoods----thereisnodoubtaboutit.Ayellowroo

mmakesmostpeoplefeelmorecheerfulandmorerelaxedthanadarkgr

eeno