大学英语六级听力 99.docx
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大学英语六级听力 99.docx
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大学英语六级听力99
大学英语六级听力-99
(总分:
100.00,做题时间:
90分钟)
一、ListeningComprehension(总题数:
12,分数:
100.00)
(分数:
10.00)
A.Seismologistshavendevelopedanywaystopredictearthquake.
B.Scientistscanforetellthespecifictimeandlocationofanearthquake.
C.Theearthquakepredictionhelpspeoplepreventithappening.
D.Theearthquakepredictioncanonlylocatepotentialareasofdanger.√
解析:
[听力原文]
Now,youvebeenreadingarticlesaboutthetremendousdamagedonetolifeandpropertyby
earthquakes.Thatswhyseismologistshavebeenworkingsohardtodevelopmethodsofearthquake
prediction.Wecannowpredictearthquakefairlywell,butthepredictionsonlylocatepotential
areasofdanger.Theydonpredictthespecifictimeandlocationatwhichanearthquakeislikely
tooccur.TodayIwanttointroduceyoutothreepredictionmodelsthathavebeendeveloped.
Thefirstpredictionmodellooksalongearthquakefaults,thosecracksintheEarthscrust,to
findwhatareknownasseismicgaps.Seismicgapsareplaceswherethefaulthasshownlittle
ornoseismicactivityforalongtime.Thistheorypostulatesthatsuchplacesareduefora
majorshock.
Thesecondmodelreliesonphenomena—likegroundtilt.Usinglongcylindricaltubescontaining
water,observersnotedthatgroundtilttendedtooccurbeforemajorearthquakes.Thatledthem
tocorrectlypredictthebigHaicheng(HICHUNG)quakeof1975—thefirstsuccessfulearthquake
predictionscientistshaveevermade.AmillionpeoplewereevacuatedfromthatChinesecitybefore
theearthquakestruck.Unfortunately,thismethodhasnworkedconsistently,sowecansay
itsbeenperfected.
Thethirdmodelisbasedonthetheorythatmajorearthquakescloselyfollowaseriesofminor
ones.Startingwiththemeasurementsandtimingofthesmallerquakes,acomplexformulacalculates
theimesofincreasedprobabilityofamuchlargerquake.Rightnow,thismethod,likethe
firstmethod,cannotpredictspecifictimeandplaces,butthatmaychangeasitisfurther
developed.
Forthemoment,noneofthesemodelscanpredictwithreasonablelevelsofconfidence.
Whatcanweknowabouttheearthquakepredictionaccordingtothespeaker?
[解析]短文开头部分提到,地震学家一直致力于大力发展地震预报方法,已经可以很好地预测地震,但只能找到潜在的危险地区,不可预测地震发生的具体时间和地点。
选项D与原文相符,故选D。
A.Seismicactivity.
B.AnopeningintheEarthscrust.√
C.CrackintheEarthscore.
D.Alotofnoisebeforeanearthquake.
解析:
[听力原文]
Whatistheearthquakefault?
[解析]短文在提到地震断层的时候,紧随其后就进行了解释,即地壳裂缝,故选B。
A.Theytermedthesecondpredictionmodel.
B.Theyobservedgroundtiltbeforeearthquakes.√
C.Theylearnedlessonsfrommajorearthquakes.
D.Theyevacuatedpeoplefromthecityintime.
解析:
[听力原文]
WhycouldthescientistscorrectlypredictHaichengquakeof1975?
[解析]在解释第二种预测模型时,观察家指出,地面倾斜往往会发生在大地震之前。
正因为如此,科学家于1975年第一次成功预报了地震。
选项B与原文相符,故选B。
A.Hebelievesthethirdmodelwillbecombinedwiththefirstone.
B.Hecouldnagreewiththesecondmodelanymore.
C.Hehassomereservationsaboutallthethreemodels.√
D.Heobviouslydoesnfavoranyofthethreemodelsatall.
解析:
[听力原文]
Whatisthespeakersattitudetowardthethreepredictionmodels?
[解析]短文最后提出,就目前而言,没有哪种模型可以很有信心地,合理地做出地震预测。
选项C表明作者持有保留态度,故选C。
(分数:
7.50)
A.20%adultsareinfectedwithHIVinBotswana.
B.TherearenaggressiveAIDSpreventioncampaigns.
C.BotswanasHIVinfectedratestillremainshigh.√
D.PeopleinBotswanasufferfromshortagesofvitamins.
解析:
[听力原文]
PatientswithHIVoftendevelopshortagesofvitaminsinthebody.Researchersexaminedwhether
givingthesepatientsamultivitaminwithamineralsupplementhelpstoimprovethebodysnatural
defensesinfightingdisease.
For30years,AIDShasbeenamajorhealthprobleminsomeAfricancountriessouthoftheSahara
Desert.InBotswana,oneofeveryfouradultsisinfectedwithHIV.Yetthecountryalsohas
aggressiveAIDSpreventioncampaigns.ThatiswhyProfessorMariannaBaumdecidedtocarryout
herresearchonHIVandvitaminsthere.
ProfessorBaumstudiedalmost900newlyinfectedadultsinBotswanawhohadnotyetbeengiven
anti-AIDSdrugsthattargetHIV.Theadultsweredividedintogroups.Eachgroupgotdifferent
combinationsofvitaminsB,C,E,andthemineralselenium,oraplacebo.
MostpatientswithHIVdonothaveenoughvitamins.ProfessorBaumsaysshethoughtthe
multivitaminsbythemselvesorthemineralseleniumbyitselfwouldhelpstrengthentheimmune
system.Shewaswrong.
Weweresurprisedtofindthatonlythecombinationwaseffective.
StudiesshowthatwhenpeoplewithHIVbegintakinganti-retroviraldrugsshortlyafterinfection,
theycanstayhealthyandarelesslikelytopassthevirustotheirsexualpartners.Butmany
patientsdonothaveenoughmoneytopayfortreatment.
ProfessorBaumsaysthevitaminandmineraltherapycombinationshouldhelppeopleinlow-income
countriesbettercontrolthevirus.
AsimplemultivitaminsupplementationwithseleniumprovidedearlyinHIVdiseasecanactually
slowtheHIVdiseaseprogression,anditshouldbeprovidedveryearlyinHIVinfection.
Shesaysthevitamintherapyshouldnotreplaceanti-retroviraldrugs,butitcanhelppeople
whocannotgetthosemedicines.
WhydidProfessorMariannaBaumdecidetocarryoutherresearchinBotswana?
[解析]短文提到Botswana时,介绍那里每四个成年人就有一个是艾滋病毒携带者,然而该同也有积极有力的艾滋病预防项目。
选项C符合原文,故选C。
√A.ThecombinationofvitaminandmineralcanhelppatientswithHIV.
B.Themultivitaminsbythemselveswouldhelpstrengthentheimmunesystem.
C.Vitaminshelpthebodyabsorbmineralandkeepithealthy
D.HIVweakensthebodysnaturaldefensesforfightingdisease.
解析:
[听力原文]
WhatdidProfessorMariannaBaumfindoutaboutvitaminsandHIV?
[解析]短文中提到,Baum教授说她原来认为多种维生素或是硒自身都能增强免疫力,但是她错了。
下文继续强调只有多种维生素和矿物质的组合才有效,故选A。
A.Itisfreeofchargetothepeoplewithlowincome.
B.ItchangesHIVinfectioninthelongrun.
C.ItslowsrapidlytheHIVdiseaseprogression.
D.Itcantaketheplaceofanti-retroviraldrugs.√
解析:
[听力原文]
AccordingtoProfessorMariannaBaum,whatdoweknowaboutthevitamintherapy?
[解析]短文最后转述了Baum教授的观点,维生素疗法不能替代抗逆转录病毒药物,却能帮助那些无法得到这些药物的病人。
选项D符合原文,故选D。
(分数:
7.50)
A.Toremainthesponsorofanevent.
B.Tocompletelyavoidpayingtax.
C.Togetwell-knownandsavemoney.√
D.Toactivelydosomesocialcharity.
解析:
[听力原文]
Itiscommonnowadaysforcompaniesandindustriestosponsorbigsportsevents.Forexample,
manycompaniessponsoredthe8thNationalGamesheldinShanghaiin1997.Then,whatexactlydo
companiesandindustriesgetoutofsponsoringbigsportsevents,suchasinternationalgames?
Andwhyneedtheydoso?
Thereisanobviousanswerandanot-so-obviousone.Theobviousansweristhattheygetknown
worldwide,particularlyiftheyaretheprincipalsponsorofanevent.Thisisespeciallyimportant
whenyouconsiderthenumberofcountriesaroundtheworldthatmightshowtheeventonTV.The
not-so-obviousansweristhatsponsorshipcanhelpfirmstosavemoney.
Thenhowcantheysavemoneyinthisway?
Companiescanclaimexpendituresonsponsorshipor
supporttosportandtheartsagainsttheamountoftaxthattheyowe.So,iftheyaregoing
tohavetopaytaxanyway,whynotspendthemoneyonpromotingtheirnameorproduct?
However,sponsorshipissurelyaveryexpensivebusiness.So,howdoesonedecidewhichevents
oractivitiestosupport?
Companiesspendalotoftimemakingsurethattheyhaveaperfectmatch
betweentheproductstoberepresentedandtheactivitythatneedssponsorship.Basically,
companieshavetomakesurethattheimageisrightandthattheproductgetsmaximumcoverage
throughtheevent.Imean,youwouldnexpectacompanywhoseproducthasayounginternational
imagetosponsorasportthathasafollowingamongolderpeople.Thereareallsortsofreasons
behindsponsorship.Thatswhatthegamesaboutforthosewhoaretryingtosellit.
Whydocompaniesandindustriessponsorbigsportsevents?
[解析]短文开头部分提到,各公司、企业赞助大型体育赛事已经十分普及。
它们究竟能获得什么呢?
它们为什么要这样做呢?
显而易见的答案是为了闻名世界,不那么一目了然的答案是为公司省钱。
选项C符合原文,故选C。
A.Theydonneedtopaytax.
B.Theyprefertoraisespiritandholdsportseventsthemselves.
C.Theydevotethemselvestosportandarts.
D.Theywouldratherpromotetheirproductsthanpaythetax.√
解析:
[听力原文]
Whatcanweknowfromthepassageaboutthosecompaniesthatsponsorbigsportsevents?
[解析]在说明为什么赞助体育赛事能够为公司省钱时,文中提到,公司可以以此开支为由来抵消它们必须要付的税款。
所以,反正它们要缴税,何不花钱来宣传自己的知名度和产品呢?
由此可以推测,公司宁愿花钱来促销它们的产品而不愿缴税,故选D。
A.Valuethediscountthattheorganizersoftheeventscanoffer.
B.Spendmuchtimeensuringtheymatchtheproductsandtheeventsperfectly.√
C.Predictthepossibilitythattheirproductshaveayounginternationalimage.
D.Trytogetminimumcoveragethroughtheevent.
解析:
[听力原文]
Howdocompaniesdecidewhicheventsoractivitiestosupport?
[解析]文中问道:
“(公司)如何决定赞助哪项赛事或者活动呢?
”紧接着给出了答案,即公司会花大量的时间确保它们要推广的产品和它们要赞助的赛事之间能够完美地匹配。
B选项所述内容与文章内容一致,故选B。
(分数:
10.00)
A.Sheranasuccessfulsportinggoodsstore.
B.ShehadagreatinfluenceonPaulsactingcareer.√
C.Shedidnthinkthatactingwasapromisingjob.
D.SheagreedtosupportPaulthoughshedidnlikeacting.
解析:
[听力原文]
PaulLeonardNewmanwasborninCleveland,Ohioin1925.Hisfather,ArthurNewman,ranasuccessful
sportinggoodsstore.Hismother,TheresaNewman,lovedthetheater.SheinfluencedhersonPaul
toactinschoolplays.
ArthurNewmandidnotthinkthatactingwasapromisingjob.But,heagreedtosupporthisson
forayearwhilePaulworkedwithsmallthe
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