历年职称英语真题_第1页
历年职称英语真题_第2页
历年职称英语真题_第3页
历年职称英语真题_第4页
历年职称英语真题_第5页
已阅读5页,还剩100页未读 继续免费阅读

下载本文档

版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领

文档简介

2012年职称英语考试理工类A级试题及参考答案

第一部分:词汇选项(第1〜15题,每题1分,共15分)

下面每个句子中均有1个词或者短语有括号,请为每处括号部分确定1个意义最为接

近的选项。

1.Heshiftedhispositionalittleinorderto(alleviate)thepaininhisle

g.

A.controlB.easyC.experienceD.suffer

2.Ouraimwasto(update)thehealthservice,andwesucceeded.

A.offerB.provideC.modernizeD.fund

3.Shemovesfromone(exotic)locationtoanother.

A.unusualB.familiarC.similarD.proper

4.Nothingwould(induce)metovoteforhimagain.

A.teachB.helpC.discourageD.attract

5.Thephotographs(evoked)strongmemoriesofourholidayinFrance.

A.refreshedB.storedC.blockedD.erased

6.Theweatherwas(crisp)andclearandyoucouldseethemountainsfiftymil

esaway.

A.hotB.heavyC.freshD.windy

7.Everyweekthemagazinepresentsthe(profile)ofawell-knownsportsperso

nality.

A.successB.descriptionC.evidenceD.plan

8.Hercommentsaboutmenare(utterly)ridiculouscompletely.

A.slightlyB.completelyC.partlyD.faintly

9.Thewallsaremadeof(hollow)concreteblocks.

A.bigB.emptyC.longD.now

10.Wealmost(raninto)aRolls-Roycethatpulledoutinfrontofuswithout

signaling.

A.overtookB.hitC.passedD.found

11.WhenIheardthenoiseinthenextroom,Icouldn'tresisthavinga(peep)

look.

A.chanceB.visitC.lookD.try

12.Hehasbeengranted(asylum)inFrance.

A.powerB.reliefC.protectionD.license

13.Hewas(weary)oftheconstantbattlebetweenthem.

A.fondB.tiredC.proudD.afraid

14.Newbornbabiescan(discriminate)betweenaman,sandawoman'svoice.

A.treatB.distinguishC.expressD.analyzes

15.Alltheflatsinthebuildinghadthesame(layout)arrangement.

A.colorB.sizeC.functionD.arrangement

答案:

alleviate-ease

update一modernize

exotic-unusual

induce一attract

evoked一refreshed

crisp一fresh

profile一description

utterly-completely

hollow-empty

raninto-hit

peep-look

asylum一protection

weary一tired

discriminate一distinguish

layout一arrangement

第二部分:阅读判断(第16〜22题,每题1分,共7分)

下面的短文后列出了7个句子,请根据短文的内容对每个句子做出判断;如果该句提

供的是正确信息,请选择A;如果该句提供的是错误信息,请选择B;如果该句的信息文

中没有提及,请选择C。

Europa?sWateryUnderworld

Europa,oneofJupiter's63knownmoons,looksbrightandicyonthesurf

ace.Butappearancescanbedeceiving:Mileswithinitscracked,frigidshell,

Europaprobablyhidesgiantpoolsofliquidwater.Wherescientistsfindliq

uidwater,theyhopetofindlifeaswell.

Sincewecan'tgodivingintoEuropa,sdepthsjustyet,scientistsinste

adhavetoinvestigatethemoon'ssurfaceforcluestowhatliesbeneath.In

anewstudy,scientistsinvestigatedonegroupofstrangeicepatternsonEur

opaandconcludedthattheformationsmarkthetopofanundergroundpooltha

tholdsasmuchwaterastheU・S.GreatLakes.

PicturesofEuropa,whichisslightlysmallerthanEarth'smoon,clearly

showatangled(错综复杂的),icymishmash(混合物)oflinesandcracksknowna

s"chaosterrains.(混乱土也形)"Thesechaoticplacescovermorethanhalfof

Europa.Formorethan10years,scientistshavewonderedwhatcausesthefor

mations.Thenewstudysuggeststhattheyarisefromthemixingofvastunder

groundstoresofliquidwaterwithicymaterialnearthesurface.

ForscientistswhosuspectthatEuropaalsomaybehidinglifebeneathit

sicysurface,thenewsaboutthenewlakeisexciting.

“Itwouldbegreatiftheselakesharboredlife,“BritneySchmidt,apla

netaryscientistwhoworkedonthestudy,toldScienceNews."Butevenifthe

ydidn't,theysaythatEuropaisdoingsomethinginterestingandactiverigh

tnow.n

Schmidt,ascientistattheUniversityofTexasatAustin,andhercollea

gueswantedtoknowhowchaosterrainsform.Sincetheycouldn,trockettoEu

ropatoseeforthemselves,theysearchedforsimilarformationshereonEart

h.TheystudiedcollapsediceshelvesinAntarcticaandicycapsonvolcanoes

inIceland.ThosefeaturesonEarthformedwhenliquidwatermixedwithice.

ThescientistsnowsuspectsomethingsimilarmightbehappeningonEuropa:t

hataswaterandiceofdifferenttemperaturesmingleandshift,thesurface

fractures.Thiswouldexplainthejumbled(?昆舌L的)icesculptures.

uFracturingcatastrophically(灾难性的)disruptstheiceinthesameway

thatitcausesiceshelvestocollapseonEarth,“SchmidttoldScienceNews.

Sheandherteamfoundthattheprocesscouldbecausingchaosterrainstofo

rmquicklyonEuropa.

Thenewstudysuggeststhatonthismoon,elementssuchasoxygenfromth

esurfaceblendwiththedeepbodiesofwater.Thatmixturemaycreateanenv

ironmentthatsupportslife.

16.TheliquidwaterofanundergroundpoolofEuropaisestimatedxxxxxoft

heUSGreatlakes.

A.RightB.WrongC.Notmention

17.ThestrangeicepatternsonEuropaareformedasaresultofaxxxxxunde

rgroundwaterpool.

A.RightB.WrongC.Notmention

18.EuropaisthemostrecentlydiscoveredoneamongJupiter's

A.RightB.WrongC.Notmention

19.ThesizeofEuropaisabitlargerthanthatofEarth,smoon.

A.RightB.WrongC.Notmention

20.SchmidtandhercolleaguesarethefirstgroupofscientistsxxxxxEurop

a.

A.RightB.WrongC.Notmention

21.TheformationsonEuropa?ssurfaceareratheruniqueinthe

A.RightB.WrongC.Notmention

22.Theexistenceofliquidwaterisanecessityforalife-support

A.RightB.WrongC.Notmention

【答案】:ABCBBBA

第三部分:概括大意和完成句子(第23〜30题,每题1分,共8分)

下面的短文后有2项测试任务:(1)第23〜26题要求从所给的6个选项中为指定段落

每段选择1个小标题;(2)第27~30题要求从所给的6个选项中为每个句子确定一个最

佳选项。

LearnaboutNobleGases(惰性气体)

1.Haveyoueverriddenonaballoon?Manytouristspotsofferballoonrides

inorderforpeopletoseethebeautyofaplacefromabove.Aballooncontai

nsanoblegascalledhelium.Formerly,balloonscontainedhydrogenbuthydro

genisveryflammableanddangerouswhenuncontrolled.Therefore,peopleshif

tedtohelium,whichissafer.Heliumissafebecauseithasthepropertieso

fthenoblegases.

2.Peopleoncebelievedthatnoblegasescouldn,tchemicallyreactatall.Fo

rthisreason,theywerecalledinertgases.TheywerealsoclusteredunderG

roup0intheoldperiodictablebecausescientistsbelievedthatthegasesh

avezerovalenceelectronsintheiroutershell.Thiswaslaterproventobe

untruewhensomenoblegascompoundswerediscovered.

3.Thegasesareelements,whichsharesimilarproperties.Thesepropertiesi

ncludebeingmonoatomic,colorless,odorless,beingabletoconductelectrici

ty,andhavinglowchemicalreactivity.NoblegasesincludeHelium,Neon,Arg

on,Krypton,XenonandRadon.TheseareallfoundinGroup18,intherightmo

stcolumnoftheperiodictable.Ifyoulookattheperiodictable,youwill

noticethattheseelementsaretheonlyones,whichdonothaveacharge.Hei

iumhasthelowestmolecular(分子的)weightwhileRadonistheheaviest.

4.Rememberthatchemicalreactionsoccurbecauseatomshave“valence“elect

rons,whichareelectronsintheiroutershell.Whentheoutershellis”unfi

lied”ortherequirednumberofelectronsisnotyetcomplete,theatomismo

rereactive.Noblegaseshaveafulloutershell,meaningthattheyhavecomp

leteelectronsintheiroutershell.Thiscompletenumbervaries.Forinstanc

e,theoutershellofHeliumhas2valenceelectronswhiletheoutershellof

Xenonhas8electrons.Nowadays,thereremainstobeafewnoblegasesbecau

seoftheinherentlowchemicalreactivityofthesesaidgases.

5.Becauseoftheirproperties,noblegaseshavemanyimportantapplications.

Theyarewidelyusedinrecreation,medicineandindustries.Forinstance,L

iquidHeliumisusedforsuperconductingmagnets(磁体).Thesemagnetsareve

ryimportantinphysicsandmedicine.Whenadoctorsuspectsthataperson,s

brainhasbeendamaged,hemightrequestforMagneticResonanceImaging(MRI).

MRIallowsthedoctorto“see"thebrain,withoutoperatingonthepatient.

23.Paragraph2

24.Paragraph3

25.Paragraph4

26.Paragraph5

【答案】:ECDA

选项:

A.Whataretheapplicationsofnoblegases?

B.Howwerenoblegasesdiscovered?

C.Whatarenoblegases?

D.Whatcausethelowchemicalreactivityofnoblegases?

E.Howwerenoblegasesunderstoodinthepast?

F.Whatistheperiodictable?

27.Noblegasesarenotverychemically_____.

28.AmongtheelementsofnoblegasesHeliumisthe___.

29.Therequirednumberofelectronsinnoblegases'outershellis.

30.MRImaymakeoperatingonthepatient.

【答案】:FCBA

选项:

A.unnecessary

B.complete

C.lightest

D.important

E.flammable

F.reactive

第四部分:阅读理解(第31〜45题,每题3分,共45分)

下面有3篇短文,每篇短文后有5道题。请根据短文内容,为每题确定1个最佳选项。

第一篇

SmallButWise

OnDecember14,NASAblastedasmallbutmightytelescopeintospace.Thetele

scopeiscalledWISEandisaboutaswidearoundasatrashcan.Don,tletits

smallsizefoolyou:WISEhasapowerfuldigitalcamera,anditwillbetakingpic

turesofsomethewildestobjectsintheknownuniverse,includingasteroids,faint

stars,blazinggalaxiesandgiantcloudsofdustwhereplanetsandstarsareb

orn.

"I'mveryexcitedbecausewe'regoingtobeseeingpartsoftheuniverse

thatwehaven'tseenbefore,“saidNedWright,ascientistwhodirectsthe

WISEproject.

Sincearrivinginspace,theWISEtelescopehasbeencirclingtheEarth,h

eldbygravityinapolarorbit(thismeansitcrossesclosetothenorthand

southpoleswitheachlap).Itscameraispointedoutward,awayfromtheEarth,

andWISEwillsnapapictureofadifferentpartoftheskyevery11minute

s.Aftersixmonthsitwillhavetakenpicturesacrosstheentiresky.

ThepicturestakenbyWISEwon,tbelikeeverydaydigitalphotographs,how

ever.WISEstandsfor^Wide-fieldInfraredSurveyExplorer.”Asitsnamesu

ggests,theWISEcameratakespicturesoffeaturesthatgiveoffinfraredradi

ation.

Radiationisenergythattravelsasawave.Visiblelight,includingthef

amiliarspectrumoflightthatbecomesvisibleinarainbow,isanexampleof

radiation.Whenanordinarydigitalcameratakesapictureofatree,forexam

pie,itreceivesthewavesofvisiblelightthatarereflectedoffthetree.W

henthesewavesenterthecamerathroughthelens,they,reprocessedbytheca

mera,whichthenputstheimagetogether.

Wavesofinfraredradiationarelongerthanwavesofvisiblelight,soord

inarydigitalcamerasdon'tseethem,andneitherdotheeyesofhumanbeing

s.Althoughinvisibletotheeye,longerinfraredradiationcanbedetectedas

warmthbytheskin.

That'sakeyideatowhyWISEwillbeabletoseethingsothertelescopes

can,t.Noteverythingintheuniverseshowsupinvisiblelight.Asteroids,f

orexample,aregiantrocksthatfloatthroughspace——buttheyabsorbmostof

thelightthatreachesthem.Theydon,treflectlight,sotheyyredifficultto

see.Buttheydogiveoffinfraredradiation,soaninfraredtelescopelikeW

ISEwillbeabletoproduceimagesofthem.DuringitsmissionWISEwilltake

picturesofhundredsofthousandsofasteroids.

Browndwarfsareanotherkindofdeep-spaceobjectthatwillshowupinW

ISE,spictures.Theseobjectsare“failed”stars-whichmeanstheyarenotma

ssiveenoughtojumpstartthesamekindofreactionsthatpowerstarssucha

sthesun.Instead,browndwarfssimplyshrinkandcooldown.They'resodimt

hatthey,realmostimpossibletoseewithvisiblelight,butintheinfrareds

pectrumtheyglow.

31.WhatissospecialaboutWISE?

A.Itisassmallasatrashcan.

C.Neverbeforehasatelescopecarriedadigitalcamerainspace.

B.Itissmallinsizebutcarriesalargecamera.

D.Itsdigitalcameracanhelpastronomerstoseetheunknownspace.

32.ThecameraonWISE

A.producesimagesofobjectsgivingoffinfraredradiation.

B.isequippedwithexpensivecomputers

C.reflectslightvisibletothehumaneye

D.issimilartoanordinarydigitalcamera

33.Itistruethatinfraredradiation

A.isnotdetectabletohuman

B.looksbrightthanvisiblelight

C.isvisiblelightreflectedoffanobject

D.haslongerwavesthatthoseofvisiblelight

34.WhichofthefollowingstatementsaboutasteroidisNOTtrue?

A.TheWISEtelescopecantakepicturesofasteroids.

B.Theydonotreflectlightthatreachesthem.

C.Theyareinvisibletoordinarycamera.

D.Theyfloatthroughspacegivingoffvisiblelight.

35.Itcanbeinferredfromthelastparagraphthatbrowndwarfs?

A.arepowerstarslikethesun.

B.giveoffvisiblelight.

C.becomemassiveandactive.

D.areinvisibletotheWISEtelescope.

【答案】:DADDB

DownloadKnowledgeDirectlytoYourBrain

Forthefirsttime,researchershavebeenabletohackintotheprocessofle

arninginthebrain,usinginducedbrainpatternstocreatealearnedbehavio

r.It'snotquiteasadvancedasaninstantkung-fudownload,andit'snota

ssleekascognitiveinception,butit'sstillanimportantfindingthatcoul

dleadtonewteachingandrehabilitationtechniques.

Futuretherapiescoulddecodethebrainactivitypatternsofanathleteora

musician,andusethemasabenchmarkforteachinganotherpersonanewactiv

ity,accordingtotheresearchers.

ScientistsfromBostonUniversityandATRComputationalNeuroscienceLaborato

riesinKyotousedfunctionalmagneticresonanceimaging,orfMRI,tostudyt

helearningprocess.Theywereexaminingtheadultbrain,saptitudeforvisua

1perceptuallearning,orVPL,inwhichrepetitivetrainingimprovesaperso

n'sperformanceonaparticulartask.Whetheradultscandothisaswellasy

oungpeoplehasbeenanongoingdebateinneuroscience.

LedbyBUneuroscientistTakeoWatanabe,researchersusedamethodcalleddec

odedfMRIneurofeedbacktostimulatethevisualcortex.Firsttheyshowedpar

ticipantscirclesatdifferentorientations.ThentheyusedfMRItowatchthe

participants?brainactivity.Theresearcherswerethenabletotrainthepa

rticipantstorecreatethisvisualcortexactivity.

ThevolunteerswereagainplacedinMRImachinesandaskedtovisualizeshape

sofcertaincolors.Theparticipantswereaskedtousomehowregulateactivit

yintheposteriorpartofthebrain”tomakeasolidgreendiscaslargeas

theycould.Theyweretoldtheywouldgetapaidbonusproportionaltothesi

zeofthisdisc,buttheyweren,ttoldanythingaboutwhatthediscmeant.Th

eresearcherswatchedtheparticipants?brainactivityandmonitoredtheacti

vationpatternsintheirvisualcortices.

uParticipantscanbetrainedtocontroltheoverallmeanactivationofanen

tirebrainregion,“thestudyauthorswrite,“ortheactivationinoneregio

nrelativetothatinanotherregion.”

Thisworkedevenwhentestsubjectswerenotawareofwhattheywerelearning,

theresearcherssaid.

“Themostsurprisingthinginthisstudyisthatmereinductionsofneurala

ctivationpatternscorrespondingtoaspecificvisualfeatureledtovisualp

erformanceimprovementonthevisualfeature,withoutpresentingthefeature

orsubjects'awarenessofwhatwastobelearned,“Watanabesaidinastateme

nt.

Watanabeandcolleaguessaidthismethodcanbeapowerfultool.

“Itcan'incept'apersontoacquirenewlearning,skills,ormemory,orpo

ssiblytorestoreskillsorknowledgethathasbeendamagedthroughaccident,

disease,oraging,withoutaperson?sawarenessofwhatislearnedormemori

zed,“theywrite.

36.Whathaveresearchersbeenabletodowiththehelpofthestudy?

A.makeapersonknowhowtodosomethingwithoutlearning

B.setupdifferentlearningpatternsfordifferentpeople

C.Enablepeopletolearnkungfuinstantly

D.DiscoverapersonJslearningprocessinthebrain

37.Whathelpsapersontodoaparticulartaskbetterinvisualperceptual1

earning?

A.Testing.

B.Encouragement.

C.Repetition.

D.self-assessment.

38.Whichofthefollowingstatementsistrueoftheexperimentparticipants?

A.Theywerenottoldwhattobelearnedintheexperiment.

B.TheylearnedhowtocontrolMRLmachinesintheexperiment.

C.Theywerepaidtotakepartintheexperiment.

D.Theywerenotcooperativeintheexperiment.

39.Thefindingofthestudyismostsignificantinthatlearning

A.isfulloffun

B.isvisualized

C.becomesunnecessary

D.happensunconsciously

40.Whoaremostlikelytobenefitfromthestability?

A.seniorpeople

B.teenager

C.musicians

D.Athletes

【答案】:DCBBA

第三篇

GrossNationalHappiness

Inthelastcentury,newtechnologyimprovedthelivesofmanypeopleinmany

countries.However,onecountryresistedthesechanges.HighintheHimalaya

nmountainsofAsia,thekingdomofBhutanremainedseparate.Itspeopleand

Buddhist(佛教)culturehadnotbeenaffectedforalmostathousandyears.Bhu

tan,however,wasapoorcountry.Peoplediedatayoungage.Mostofitspe

oplecouldnotread,andtheydidnotknowmuchabouttheoutsideworld.The

n,in1972,anewrulernamedKingJigmeSingyeWangchuckdecidedtohelpBhut

antobecomemodern,butwithoutlosingitstraditions.

KingWangchucklookedatothercountriesforideas.Hesawthatmostcountrie

smeasuredtheirprogressbytheirGrossNatonalProduct(GNP)。TheGNPmeas

uresproductsandmoney.Whenthenumberofproductssoldincreases,peoples

aythecountryismakingprogress.KingWangchuckhadadifferentideaforBh

utan.Hewantedtomeasurehiscountry'sprogressbypeople'shappiness.If

thepeople'shappinessincreased,thekingcouldsaythatBhutanwasmaking

progress.Todecideifpeoplewerehappier,hecreatedameasurecalledGross

NationalHappiness(GNH)。

GNHisbasedoncertainprinciplesthatcreatehappiness.Peoplearehappier

iftheyhavehealthcare,education,andjobs.Theyarehappierwhentheyli

veinahealthy,protectedenvironment.Theyarehappierwhentheycankeept

heirtraditionalcultureandcustoms.Finally,peoplearehappierwhentheyh

aveagood,stablegovernment.

NowtheseissomeevidenceofincreasedGNHinBhutan.Peoplearehealthiera

ndarelivinglonger.Morepeopleareeducatedandemployed.Twenty-fiveperc

entofthelandhasbecomenationalparks,andthecountryhasalmostnopoll

ution.TheBhutanesecontinuetoweartheirtraditionalclothingandfollowt

heirancientBuddhistcustoms.Bhutanhasalsobecomeademocracy.In2008,Ki

ngWangchuckgavehispowertohisson.Althoughthecountrystillhadakin

g,ithelditsfirstdemocraticelectionsthatyear.Bhutanhadpoliticalpar

tiesandpoliticalcandidatesforthefirsttime.Finally,Bhutanhasconnect

edtotherestoftheworldthroughtelevisionandinternet.

Bhutanisasymbolforsocialprogress.Manycountriesarenowinterestedin

Bhutan,sGNH.Thesecountriesareinvestigatingtheirownwaystomeasurehap

piness.Theywanttocreatenewpoliciesthattakecareoftheirpeople,cultu

res,andland.

BrazilmaybethenestcountrytousetheprinciplesofGNH.Brazilianleader

sseetheprinciplesofGNHasasourceofinspiration.Brazilisalargecou

ntrywithadiversepopulation.Ifhappinessworksasameasureofprogressi

nBrazil,perhapstherestoftheworldwillfollow.

41.WhowasJigmeSingyeWangchuck?

A.Apresident.

B.ABuddhistpriest.

C.Ageneral.

D.Aking.

42.ApartfrommodernizingBhutan,whatelsedidWangchuckwanttodoforBhu

tan?

A.Tomakeitspopulationgrow.

B.Tokeepitseparatefromtheworld.

C.Toencourageitspeopletogetrich.

D.Tokeepitstraditionandcustoms.

43.AcountryshowsitsprogresswithGNPby

A.sellingmoreproducts.

B.spendingmoremoney.

C.spendinglessmoney.

D.providingmorejobs.

44.AccordingtoGNH,peoplearehappierifthey

A.havenewtechnology.

B.canchangetheirreligion.

C.haveagood,stablegovernment.

D.havemoremoney.

45.Today,manycountriesare

A.usingtheprinciplesofGNHtomeasuretheirprogress.

B.workingtogethertodevelopacommonscaletomeasureGNH.

C.takingbothBhutanandBrazilassymbolsforsocialprogress.

D.tryingtofindtheirownwaystomeasurehappiness.

【答案】:DDACD

第5部分:补全短文(第46〜50题,每题2分,共10分)

下面的短文有5处空白,短文后有6个句子,其中5个取自短文,请根据短文内容将

其分别放回原有位置,以恢复文章面貌。

TheMysteriesofNazca

InthedesertofPeru,300kilometersfromLima,oneofthemostunusual

artworksintheworldhasmystified(迷惑)peoplefordecades.(46)Butfrom

highabove,thesemarksarehugeimagesofbirds,fish,seashells,allbeauti

fullycarvedintotheearth.

TheNazcalinesaresodifficulttoseefromthegroundthattheyweren?t

discovereduntilthe1930s,whenpilotsspottedthemwhileflyingoverthea

rea.Inall,thereareabout70differenthumanandanimalfiguresonthepla

in,alongwith900triangles,circles,andlines.

Researchershavefiguredoutthatthelinesareatleast1,500yearsold,

buttheirpurposeisstillamystery.(47)However,itwouldprobablybever

ytrickytoxxxxx(单词暂不明)andaspaceshipinthemiddleofpicturesofd

ogsandmonkeys.

Inthe1940s,anAmericanexplorernamedPaulKosoksuggestedthatthedr

awingsareachronicleG己录)ofthemovementofthestarsandplanets.(48)

xxxxxanastronomertestedhistheorywithacomputer,buthecouldn,tfinda

nyrelationbetweenthelinesandmovementsinspace.

Anotherexplanationisthatthelinesmayhavebeenmadeforreligiousre

asons.xxxxxresearcherTonyMorrisoninvestigatedthecustomsofpeopleint

heAndesxxxxxandlearnedthattheysometimespraybythesideoftheroad.

It'spossiblethatxxxxx,thelinesofNazcawerecreatedforasimilarpurpo

se.(49)Butxxxxxpeoplehaveneverconstructedanythingthisbig.

Recently,twootherscientists,DavidJohnsonandSteveMabee,havespecu

latedxxxxxlinescouldhavebeenrelatedtowater.Nazcaisoneofthedries

tplacesinthexxxxxreceivesonly2cmofraineveryyear.WhileJohnsonwas

searchingforxxxxxwatersourcesinthearea,henoticedthatsomewaterway

sbuiltancientxxxxxwereconnectedwiththelines.Johnsonbelievesthatth

eNazcalinesareagiantxxxxxundergroundwaterinthearea.(50)

A.Otherscientistsarenowsearchingforevidencetoprovethis.

B.ASwisswriternamedErichVonDanikenwrotethattheNazcalinesweredes

ignedasalandingplaceforUFOs.

C.Scholarsdifferininterpretingthepurposeofthedesigns.

D.Thelargestpicturesmayhavebeenthesitesforspecialceremonies.

E.Seenfromtheground,itlookslikelinesscratchedintotheearth.

F.HecalledNazca“thelargestastronomybookintheworld”.

46〜50题【答案】:EBFDA

第6部分:完形填空(第51〜65题,每题1分,共15分)

下面的短文有15处空白,请根据短文内容为每处空白确定1个最佳选项。

SolarPowerwithoutSolarCells

AdramaticandsurprisingmagneticeffectoflightdiscoveredbyUniversityo

fMichiganresearcherscouldleadtosolarpowerwithouttraditionalsemicond

uctor-basedsolarcells.

Theresearchersfoundawaytomakean"optical______(51),〃saidStephenRan

d,aprofessorinthedepartmentsofElectricalEngineeringandComputerScie

nee,PhysicsandAppliedPhysics.

Lighthaselectricandmagnetic(52).Untilnow,scientiststhoughtthe

effectsofthemagneticfieldweresoweakthattheycouldbe_____(53).W

hatRandandhiscolleaguesfoundisthatattherightintensity,whenlight

istravelingthroughamaterialthatdoesnot______(54)electricity,theli

ghtfieldcangeneratemagneticeffectsthatare100milliontimesstrongert

hanpreviouslyexpected.Underthesecircumstances,themagneticeffectsdeve

lopstrength(55)toastrongelectriceffect.

“Thiscouldleadtoanewkindofsolarcellwithoutsemiconductorsandwitho

utabsorptiontoproducechargeseparation,,zRandsaid.〃Insolarcells,the

(56)goesintoamaterial,getsabsorbedandcreatesheat.Here,weex

pecttohaveaverylowheatload.Insteadofthelightbeingabsorbed,energ

yisstoredinthemagneticmoment.Intensemagnetizationcanbeinducedbyi

ntenselightandthenitisultimatelycapableofprovidingacapacitivepowe

r(57).〃Whatmakesthispossibleisapreviouslyundetectedbrandof

“opticalrectification,saysWilliamFisher,adoctoralstudentinappliedp

hysics.Intraditionalopticalrectification,light'selectricfieldcausesa

chargeseparation,orapulling_____(58)ofthepositiveandnegativecha

rgesinamaterial.Thissetsupavoltage,similarto(59)inabatte

ry.

RandandFisherfoundthatundertherightcircumstancesandinrighttypeso

fmaterials,thelight'smagneticfieldcanalsocreateopticalrectification

Thelightmustbesh

温馨提示

  • 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
  • 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
  • 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
  • 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
  • 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
  • 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
  • 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

评论

0/150

提交评论