全国职称英语理工A真题及答案Word格式文档下载.docx
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全国职称英语理工A真题及答案Word格式文档下载.docx
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A.controlB.easeC.experienceD.suffer
3.Ouraimwastoupdatethehealthservice,andwesucceeded.
A.offerB.provideC.fund
D.modernize
4.Everyweekthemagazinepresentstheprofileofawell-knownsportspersonality.
A.descriptionB.successC.evidenceD.plan
5.Alltheflatsinthebuildinghadthesamelayout.
A.colorB.sizeC.functionD.arrangement
6.Newbornbabiescandiscriminatebetweenaman’sandawoman’svoice.
A.treatB.expressC.distinguishD.analyze
7.Theweatherwascrispandclearandyoucouldseethemountainsfiftymilesaway.
A.hotB.heavyC.freshD.windy
8.Nothingwouldinducemetovoteforhimagain.
A.teachB.helpC.attractD.discourage
9.WhenIheardthenoiseinthenextroom,Icouldn’tresisthaveapeep.
A.chanceB.lookC.visitD.try
10.Hercommentsaboutmenareutterlyridiculous.
A.slightlyB.partlyC.faintlyD.completely
11.Hewaswearyoftheconstantbattlebetweenthem.
A.fondB.proudC.tiredD.afraid
12.Shemovesfromoneexoticlocationtoanother.
A.unusualB.familiarC.similarD.proper
13.HehasbeengrantedasyluminFrance.
A.protectionB.powerC.reliefD.license
14.Thephotographsevokedmemoriesofour
A.storedB.blockedC.erased
D.refreshed
15.Thewallsaremadeofhollowconcreteblocks.
A.emptyB.bigC.longD.new
二、阅读判断
Europa’swateryunderworld
Europa,oneofJupiter’s63knownmoons,looksbrightandicyonthesurface.Butappearancescanbedeceiving:
Mileswithinitscracked,frigidshell,Europaprobablyhidesgiantpoolsofliquidwater.Wherescientistsfindliquidwater,theyhopetofindlifeaswell.
Sincewecan’tgodivingintoEuropa’sdepthsjustyet,scientistsinsteadhavetoinvestigatethemoon’ssurfaceforcluestowhatliesbeneath.Inanewstudy,scientistsinvestigatedonegroupofstrangeicepatternsonEuropaandconcludedthattheformationsmarkthetopofanundergroundpoolthatholdsasmuchwaterastheU.S.GreatLakes.
PicturesofEuropa,whichisslightlysmallerthanEarth’smoon,clearlyshowatangled,icymishmashoflinesandcracksknownas“chaosterrains.”ThesechaoticplacescovermorethanhalfofEuropa.Formorethan10years,scientistshavewonderedwhatcausestheformations.Thenewstudysuggeststhattheyarisefromthemixingofvastundergroundstoresofliquidwaterwithicymaterialnearthesurface.
ForscientistswhosuspectthatEuropaalsomaybehidinglifebeneathitsicysurface,thenewsaboutthenewlakeisexciting.
“Itwouldbegreatiftheselakesharboredlife,”BritneySchmidt,aplanetaryscientistwhoworkedonthestudy,toldScienceNews.“Buteveniftheydidn’t,theysaythatEuropaisdoingsomethinginterestingandactiverightnow.”
Schmidt,ascientistattheUniversityofTexasatAustin,andhercolleagueswantedtoknowhowchaosterrainsform.Sincetheycouldn’trockettoEuropatoseeforthemselves,theysearchedforsimilarformationshereonEarth.TheystudiedcollapsediceshelvesinAntarcticaandicycapsonvolcanoesinIceland.ThosefeaturesonEarthformedwhenliquidwatermixedwithice.ThescientistsnowsuspectsomethingsimilarmightbehappeningonEuropa:
thataswaterandiceofdifferenttemperaturesmingleandshift,thesurfacefractures.Thiswouldexplainthejumbledicesculptures.
“FracturingcatastrophicallydisruptstheiceinthesamewaythatitcausesiceshelvestocollapseonEarth,”SchmidttoldScienceNews.SheandherteamfoundthattheprocesscouldbecausingchaosterrainstoformquicklyonEuropa.
Thenewstudysuggeststhatonthismoon,elementssuchasoxygenfromthesurfaceblendwiththedeepbodiesofwater.Thatmixturemaycreateanenvironmentthatsupportslife.
16.TheliquidwaterofanundergroundpoolofEuropaisestimatedxxxxxoftheUSGreatlakes.
A.RightB.WrongC.Notmention
17.ThestrangeicepatternsonEuropaareformedasaresultofaxxxxxundergroundwaterpool.
18.EuropaisthemostrecentlydiscoveredoneamongJupiter’s
19.ThesizeofEuropaisabitlargerthanthatofEarth’smoon.
20.SchmidtandhercolleaguesarethefirstgroupofscientistsxxxxxEuropa.
21.TheformationsonEuropa’ssurfaceareratheruniqueinthe
22.Theexistenceofliquidwaterisanecessityforalife-support
三、概括大意与完成句子
LearnaboutNobleGases(惰性气体)
1 Haveyoueverriddenonaballoon?
Manytouristspotsofferballoonridesinorderforpeopletoseethebeautyofaplacefromabove.Aballooncontainsanoblegascalledhelium(氦).Formerly,balloonscontainedhydrogenbuthydrogenisveryflammableanddangerouswhenuncontrolled.Therefore,peopleshiftedtohelium,whichissafer.Heliumissafebecauseithasthepropertiesofthenoblegases.
2 Peopleoncebelievedthatnoblegasescouldn’tchemicallyreactatall.Forthisreason,theywerecalledinertgases(惰性气体).TheywerealsolistedunderGroup0intheoldperiodictablebecausescientistsbelievedthatthegaseshavezerovalence(价)electronsintheiroutershell.Thiswaslaterproventobeuntruewhensomenoblegascompoundswerediscovered.
3 Thegasesareelements,whichsharesimilarproperties.Thesepropertiesincludebeingmonoatomic,colorless,odorless,beingabletoconductelectricity,andhavinglowchemicalreactivity.NoblegasesincludeHelium,Neon,Argon,Krypton,XenonandRadon.TheseareallfoundinGroup18,intherightmostcolumnoftheperiodictable.Ifyoulookattheperiodictable,youwillnoticethattheseelementsaretheonlyones,whichdonothaveacharge.Heliumhasthelowestmolecular(分子的)weightwhileRadonistheheaviest.
4Rememberthatchemicalreactionsoccurbecauseatomshavevalenceelectrons,whichareelectronsintheiroutershell.Whentheoutershellis“unfilled”ortherequirednumberofelectronsisnotyetcomplete,theatomismorereactive.Noblegaseshaveafulloutershell,meaningthattheyhavecompleteelectronsintheiroutershell.Thiscompletenumbervaries.Forinstance,theoutershellofHeliumhas2valenceelectronswhiletheoutershellofXenonhas8electrons.Nowadays,thereremainstobeafewnoblegasesbecauseofthelowchemicalreactivityofthesesaidgases.
A.whatistheperiodictable?
B.Whatarenoblegases?
C.Whatcausesthelowchemicalreactivityofnoblegases?
D.Howwerenoblegasesdiscovered?
E.Howwerenoblegasesunderstoodinthepast?
F.whataretheapplicationsofnoblegases?
5becauseoftheirproperties,noblegaseshavemanyimportantapplications.Theyarewidelyusedinmedicineandindustries.Forinstance,liquidHeliumisusedforsuperconductingmagnets(磁体).Thesemagnetsareveryimportantinphysicsandmedicine.Whenadoctorsuspectsthataperson’sbrainhasbeendamaged,hemightrequestforMagneticResonanceImaging(MRI).MRIallowsthedoctorto“see”thebrain,withoutoperatingonthepatient.
23.paragraph2__E___
24.paragraph3__B____
25.paragraph4___C____
26.paragraph5___F_____
27.Noblegasesarenotverychemically
A
28.AmongtheelementsofnoblegasesHeliumisthe
B
29.Therequirednumberofelectronsinnoblegases’outershellis
D
30.MRImaymakeoperatingonthepatient
F
A.reactiveB.lightestC.importantD.completeE.flammableF.unnecessary
that
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