第12课职称英语原卷测验及分析2Word文件下载.docx
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第12课职称英语原卷测验及分析2Word文件下载.docx
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B
phoneC consult
D
invite
2 Wehadalongconversationaboutherparents.
A speech
questionC talk
debate
3 Thechairmanproposedthatwestopthemeeting.
A stated
announcedC demanded
suggested
4 Obviouslythesepeoplecanbereliedoninacrisis.
A livedon
dependedonC believedin
joinedin
5 ThereisalwaysexcitementattheOlympicGameswhenanathletebreaksarecord.
A beats
maintainsC matches
tries
6 Allthepupilsseemtobeverycheerful.
A happy
healthyC naughty
busy
7 Thetraditionalpaintingsareexhibitedonthesecondfloor.
A laid
displayedC kept
stored
8 Shestoodthere,shakingwithfury.
A misery
B laughter
C anger
D cry
9 Maryevidentlyisthemostdiligentstudentamongus.
A intelligent
B beautiful
C talkative
hardworking
10PersistentattemptstointerviewGarbowerefruitless
A Forceful
B ReasonableC
Continuous
D Firm
11Whycan'
tyoustopyoureternalcomplaining?
A everlasting
long
C temporary
boring
12Hundredsofbuildingswerewreckedbytheearthquake.
A shaken
damaged
C fallen
jumped
13Thesepaintingsareconsideredbymanytobeauthentic.
A faithful
royal
C genuine
sincere
14Manyeconomistshavegivenintothefatallureofmathematics.
A attraction
B simplicity
C power
rigor
15Tenyearsaftertheevent,herdeathstillremainsapuzzle.
A mist
B fog
C mystery
D secret
P188
phone后C consult
invite 前
2 Wehadalongconversationaboutherparents.P264
3 Thechairmanproposedthatwestopthemeeting.P868
4 Obviouslythesepeoplecanbereliedoninacrisis.P920rely
dependedonC believedin
5 ThereisalwaysexcitementattheOlympicGameswhenanathletebreaksarecord.P170
6 Allthepupilsseemtobeverycheerful.P212
7 Thetraditionalpaintingsareexhibitedonthesecondfloor.P409
displayedC kept
8 Shestoodthere,shakingwithfury.P475
9 Maryevidentlyisthemostdiligentstudentamongus.P327
B beautiful
C talkative
10PersistentattemptstointerviewGarbowerefruitlessp819
P399
longC temporary
12Hundredsofbuildingswerewreckedbytheearthquake.P1174
B
damagedC fallen
13Thesepaintingsareconsideredbymanytobeauthentic.P105
royalC genuine
14Manyeconomistshavegivenintothefatallureofmathematics.P682
simplicityC power
rigor 00
15Tenyearsaftertheevent,herdeathstillremainsapuzzle.P879
A mist
B fogC mystery
第2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。
RadiocarbonDating
Nowadaysscientistscananswermanyquestionsaboutthepastthroughatechniquecalledradiocarbon(放射性碳),orcarbon-14,dating.Onekeytounderstandinghowandbysomethinghappenedistodiscoverwhenithappened.
Radiocarbondatingwasdevelopedinthelate1940sbyphysicistWillardF.LibbyatheUniversityofChicago.Anatomofordinarycarbon,calledcarbon-12,hassixprotons(中子)andsixneutrons(质子)initsnucleus.Carbon-14,orC-14,isaradioactive,unstableformofcarbonthathastwoextraneutrons(原子核).Itreturnstoamorestableformofcarbonthroughaprocesscalleddecay(衰减).Thisprocessinvolvesthelossofheextraneutronsandenergyfromthenucleus.
InLibby'
sradiocarbondatingtechnique,theweakradioactiveemissions(放射)fromhisdecayprocessarecountedbyinstrumentssuchasaradiationdetectorandcounter.hedecayrateisusedtodeterminetheproportionofC-14atomsinthesamplebeingdated.
Carbon-14isproducedintheEarth'
satmospherewhennitrogen(氮)-14,orN-14,
interactswithcosmicrays(宇宙射线).ScientistsbelievesincetheEarthwasformed,themountofnitrogenintheatmospherehasremainedconstant.Consequently,C-14formationisthoughttooccurataconstantrate.NowtheratioofC-14toothercarbontomsintheatmosphereisknown.Mostscientistsagreethatthisratioisusefulfordatingitemsbacktoatleast50,000years.
AlllifeonEarthismadeoforganicmolecules(分子)thatcontaincarbonatomscomingfromtheatmosphere.SoalllivingthingshaveaboutthesameratioofC-14
atomstoothercarbonatomsintheirtissues(组织).Onceanorganism(有机体)diesittopstakingincarboninanyform,andtheC-14alreadypresentbeginstodecay.OvertimetheamountofC-14inthematerialdecreases,andtheratioofC-14toothercarbontomsgoesdown.Intermsofradiocarbondating,thefewerC-14atomsinasample,theolderthatsampleis.
16 Nowadaysmanyscientistsdependonradiocarbonfordatingage-oldobjects.
ARightB WrongCNotmentioned
17 Theradiocarbondatingtechniqueisonlyabout40yearsold.
ARightB WrongCNotmentioned
18 Anatomofordinarycarbonhassixprotonsandeightneutrons.
19 Radarisusedtodeterminethecharacteristicsofradiocarbon.
ARightB WrongCNotmentioned
20 Radiocarbonisreliableindatinganobjectbacktoatleast50,000years.
21 TheC-14inanorganismbeginstodecaywhenitdies.
22 Thehalf-lifeofC-14isabout25,000years.
第3部分:
概括大意与完成句子(第23~30题,每题1分,共8分)3
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个选项中为第1~4段每段1选择个最佳标题;
(2)第27~30题要求从所给的6个选项中为每个句子确定1个最佳选项。
Chimpanzees
1 Chimpanzees(黑猩猩)willsoonbeextinct(灭绝).Ifthepresentrateofhuntingandhabitat(栖息地)destructioncontinues,thenwithin20years,therewillbenochimpanzeeslivinginthewild.Butthisismorethananenvironmentalormoraltragedy(悲剧).Chimpanzeeextinctionmayalsohaveprofoundimplications(含意)forthesurvivaloftheirdistantrelatives—humanbeings.
2 In1975thebiologistMarie-ClaireKingandAllanWilsondiscoveredthatthehumanandchimpanzeegenomes(基因组)matchbyover98%.Comparethistothemouse,usedasmodelforhumandiseaseinlabtests,whichsharesonly60%ofitsDNAwithus.Infact,chimpanzeesarefarmoresimilartohumansthantheyaretoanyotherspeciesofmonkey.Aswellasresemblingusgenetically,chimpsarehighlyintelligentandabletousetools.Thesefactsaloneshouldbeenoughtomakeprotectionofchimpsanurgentpriority(优先).Butthereisanother,moreselfishreasontopreservethechimp.
3 Thechimpanzees'
trumpcard(王牌)comesinthefieldofmedicalresearch.Chimpanzeesaresosimilartohumansthatveterinarians(兽医)oftenrefertohumanmedicaltextbookswhentreatingthem.Yetchimpanzeesdoshowdifferencesinseveralkeyareas.Inparticular,chimpsaremuchmoreresistanttoanumberofmajordiseases.Itisthisabilitythatissointeresting.
4 Forexample,chimpsseemtoshowamuchhigherresistancethanhumanstoHIV,thevirusthatcausesAids.Indeed,theiruseasexperimentalanimalsinAIDSresearchhasdeclinedbecausetheyaresoresistant.
5 Bysequencingthechimpgenomeandpinpointing(找到)theplacewherethechimpanzeeDNAsequencediffersfromthatofhumans,scientistshopetobeabletodiscoverwhichpartofthegeneticcodegiveschimpstheirincreasedresistancetosomediseases.This,theyhope,willallowthemtodevelopnewandmoreeffectivetreatmentsforthehumanformsofthesediseases.Suchtreatmentscouldincludetheproductionofnewdrugsoreventhealteration(改变)ofthehumangeneticsequence.Therecentlycompletedhumangenomesequencingprojecthasshownthatsuchaneffortisnowwellwithinourreach.
23 Paragraph1
24 Paragraph2
25 Paragraph3
26 Paragraph4
A ReasonsforHIVresistance
B Implicationsofchimpanzeeextinctionforhumans
C EffectiveAIDstreatment
D Geneticsimilaritiesbetweenchimpsandhumans
E Chimps'
resistancetoHIV
F Geneticdifferencesbetweenchimpsandhumans
27 Chimpanzeeextinctionmayaffect
28 Thereisadifferenceoflessthan2%betweenthechimpand
29 Scientistssuspectthatgenes.Playasignificantroleinprotectingchimpsfromgetting
30 Thediscoveryofthegeneticcodeofchimpswillbehelpfulto
A somehumandiseasetreatments
B somediseases
C humansurvival生存
D humangenomes
E keyareas
F healthierlifestyle
Chimpanzees3
1 Chimpanzees(黑猩猩)willsoonbeextinct(灭绝).Ifthepresentrateofhuntingandhabitat(栖息地)destructioncontinues,thenwithin20years,therewil
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