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大学英语四级改革适用(阅读)模拟试

卷8(共9套)

(共190题)

大学英语四级改革适用(阅读)模拟试

卷第1套

一、仔细阅读(本题共20题,每题1.0分,共20分。)

Duuloibandthelicallli-uaicsyslcnibinallnaliunsslilllargelyusepapciluuomiiiuiiicalc.

Thispaperisshuttledfromonehospitaltoanother,oftendoesn'tarriveonlimeand

sometimesdoesn'tshowupatall.Someofthemostimportantinformationiswrittenin

longhand,andhowlegibleisyourdoctor'shandwriting?Fortunately,thereisagrowing

movementtochangethat,usingelectronicinformationtechnology.Whilerelativelyfew

providersuseelectronichealthrecordsintheiroffices,thatfigureisincreasingrapidly.

Moredoctorsarcusingcomputerstoorderdiagnostictestsandtreatment.Gradually,

institutionsarebuildingsystemswithcommoncodingsystemsthatallowthemto

exchangedata.Thesinglemostimportantbenefitofelectronicrecordsisthattheymake

itpossibletodeliverinformationtoyourdoctoratthemomentheismakingdecisions

aboutyoucare.Insteadofhavingtoreadthroughwhatcanbehundredsofpagesinyour

medicalrecordtofindaparticulartestresults,oryourweighthasbeenoverthepastthree

years,thatdataarenowavailableinaninstant.Technologyisalsomakingiteasierfor

patientstocommunicatewithdoctorsandparticipateintheirtreatment-enablingthem,

forexample,toaskforarefillandreferral,ortotransmitimportantinformationlikethe

blood-pressurereadingstakenonhomemachines.Prescribingmedicinesisalsogettinga

lotsaferandmoreefficient.Computersnotonlysolvethelegibilityproblemwith

prescriptions,theycanalsoremindthedoctoraboutpocentialadversedrug-drug

interactionsorpatientdrugallergies,andevenrecommendanadjusteddosebasedona

patient'skidneyfunction.Insomehospitals,drugordersarebar-codedtobesuretheyare

goingtotherightpatient,andintravenousdrugsaredeliveredthrough"smartpumps'that

ensurethedoseisacceptable.Withoutsuchchecking,itiseasyforanursetomakean

error,andgive10timestoomuchmedication.Computerizingmedicalcarewillbe

expensive,butthereshouldbeahugereturnoninvestment.Ifnotdoneproperly,

computerizingmedicalcarecanfrustratedoctorsandthreatentheconfidentialityof

patientrecords.Butinhcalth-caresystemsthathaveadoptedthetechnology,theseare

occasionalproblems,whileimprovedsafety,qualityandefficiencyarcadailyreality.

1、Thecommunicationbypaperbetweendoctorshasproblemspartlybecause.

A、itcostsalargeamountforpostage

B、somedoctorshavedifficultyreadingthehandwritingonthepaper

C、thereisn'tagoodfillingsystemtorecordthedocument

D、ittakestoomuchtimetocopywhatiswritteninthediagnosis

标准答案:B

知识点解析:细节题。该细节在文章的第一段开头.如把病历从一个医院转移到另

外一个医院很慢,医生的笔迹不好辨认等等。选项中,邮费的问题文中没有提到,

故A错误,没有好的记录系统文中也没有提到。抄写诊断书的内容文中也没有涉

及,只有B,书写很难辨认文中提到了,故选B。

2、Whatwasmadepossiblebyadoptingcomputertechnologyinmedical

communication?

A、Patientsdon'thavetocometothephannacytopickuptheirmedicine.

B、Doctorscanprovideatreatmentwithouttheassistanceofnurses.

C^Hospitalscanacceptmorepatientsattheemergencyroom.

DxPatientsathomecancoinmnnicatewiththeirdoctorabouttheirbloodpressure.

标准答案:D

知识点解析:细节题。该细节在文章的第二、三段,比如医生可以在第一时间知道

你的过往病历,方便医生和患者的沟通,和患者信息的交换,更安全高效等。选项

中,文中没有说到患者可以不去抓药,也没有说医生不需要护士帮忙治疗,或者说

医院可以在急救室接受病人,A、B、C都没有提到,只有D正确,病人可以在家

和医生沟通自己的血压。

3^Inmakingprescriptions,.

A、doctorsshouldbecarefulnottowritedownpersonalinformation

B、itisdifferenttofindoutallthepatient,sallergies

C、thenewtechnologyhelpsavoiderrorsabouttheamountofmedication

D、doctorsandnursesworktogethertodoublecheckwhoreceivedthemedication

标准答案:C

知识点解析:细节题。艰据文章的第三段,在处方方面。4ithcycanalsoremindthe

doctoraboutpotentialadversedrug-druginteractionsorpatientdrugallergies,and

evenrecommendanadjusteddosebasedonapatient'skidneyfunction,,»''intravenous

drugsarcdeliveredthrough4smartpumps'thatensurethedoseisacceptable”,即提醒医

生药物间不良的相互作用或药物过敏,还会根据患者的肾功能推荐药量.可以控制

静脉注射的约量等等,选项中只有避免约物用量错误符合题意。

4、Computerizinghcalth-caresystems.

A、arestillimprovingandbecomingsafer

B、requiremanyspecialistsaboutcomputerstoavoidaccidents

C、solveeveryproblemwehavenowinhospitals

D^areconvenientfordoctorsandnurses,butnotforpatients

标准答案:A

知识点解析:推断题。根据文章的最后一段,作者提到如果操作不当,会使医生迷

惑降低病历的可信度,但是这些问题只是有时发生。可以推断还是需要今后的改

进。而没有说到需要电胸专业人员来避免危险.不可能解决医院的一切问题。电子

病例对医生、护士和患者都有利,故B、C、D错误,A正确。

5、Whichofthefollowingstatementsistrue?

A、Ihcnewhcalth-carcsystemwithcomputersistooexpensivetobeadoptedbymost

medicalinstitution.

B、Thenumberofhospitalswheredoctorsuseacomputerizedhealth-caresystemis

increasing.

C>Evencomputersmakemistakes,soitissaferfbrdoctorsandnursestocheckeach

prescription.

D、Inthefuture,patientsdon'thavetogotothehospitalbecausetheycangetthe

diagnosisandtheprescriptiononline.

标准答案:B

知识点解析:细节题。文章的第一段和最后一段提到这种系统正在被越来越多的医

院使用,虽然贵,但是收效很大,但是没有说到大多数机构都买不起,故A错

误,B正确。也没有提到电脑出错的问题,故C错误。电子病历只是方便了医生和

患者的沟通,但并不是说患者就可以不去医院了,故D错误。故选B。

Astheearth'ssurfaceswarm,evaporation(蒸发)isdryingoutforestsandsoils,increasing

susceptibilitytofire.Lastsummer,morethan7.3millionacresofU.S.forestsburned

duringanintensedrought.Mostalarmingly,asanintergovernmentalpanelconcludedin

2001,earth'sbiologicalsystemsarealreadyrespondingtoclimatechange.Thecurrent

epidemic(传染病)ofbarkbeetlesaddsanewdimensiontotheriskoffires.Mountain

barkbeetlesattacklodgcpolc,pondcrosa(黄松),Douglassfir(极木),sugarandwestern

whitepines,destroyingthembyinjectingafungus(真菌).Thegalleriesofeggstheylay

insidethebarkpavethewayfbrthetrees'deathwithinayear.Healthytreessccrctcpitch

todrowntheinvadersandplugtheholestheybore,butdroughtdriesoutthepitch.

Woodpeckersandnuthatcheskeepadultnumbersincheck,butwithwarmerwinters,

beetlepopulationscanquadrupleinayear,outpacingtheirpursuers.Warmingis

increasingthereproduction,abundanceandgeographicrangeofbeetles,destabilizingthe

age-old,hardwontrucebetweeninsectsandvegetation.Since1994,mildwintersin

Wyominghavehelpedthebeetlelarvae(幼虫)survivetheseason.Usually,80percentdie,

butthemortalityratehasdroppedtolessthan10percent.InAlaska,sprucebarkbeetles

arcsneakinginanextragenerationayearduetowanning,andhavedestroyed4million

acresintheKenaiPeninsulainthepastfiveyears."Thisisanotherexampleofglobal

climatechangethathasdeadlyimplicationsformystate,"declaredAlaska'sRepublican

Sen.TedStevenslastyear.Warmingisalsoexpandingthebeetles'rangeintohigher

altitudes.Inthepastfourorfiveyears,theyhavebeguntoattackwhitebarkpinesatan

elevationof8,000feetorhigher.JesseLogan,whoworksfortheUtahForestService,

toldtheBillings(Mont.)Gazettelastmonththatthisdevelopmentcoincideswithan

overallwanningtrendthatbeganinthe1980s."Beetlesarccold-blooded,sotheir

metabolismisrelatedtotheenvironmentthey'rein,"accordingtoLogan,whosaidthe

beetlesseemtobeareliableindicatorofglobalclimatechange.

6、Barkbeetles.

A、aredisappearingbecauseoftheincreaseofwildfires

B、areeasilykilledbywoodpeckersandnuthatches

C^laytheireggsunderthegroundatthebottomoftrees

D、havebecomeabletosurvivethewinter

标准答案:D

知识点解析•:细节题。本文讲述了因为全球变暖,导致一种害虫在森林肆虐的情

况。因为全球变暖,树木的树脂干枯,不能淹死入侵的害虫,导致害虫的繁殖量增

大,幼虫死亡率降低,在森林中肆虐。故A错误。"Woodpeckersandnulhatches

keepadultnumbersincheck,butwithwarmerwinters,beetlepopulationscan

quadrupleinayear,outpacingtheirpursuers^,故它的天敌不能有效地控制虫害,B

错误。由“Thegalleriesofeggstheylayinsidethebark..”,可以看出他们把卵产在树

皮下,故C错误。从"mildwintersinWyominghavehelpedthebeetlelarvae(幼

虫)survivetheseason”中看出D正确。

7、Whatistherelationshipbetweenbarkbeetlesandclimatechange?

A、Moreandmorebarkbeetlesdieduetoglobalwanning.

B、Barkbeetleshavemoreriskofdyinginwarmingwinters.

C、Globalwarmingcausesanincreaseinthenumberofbarkbeetles.

D、Thereisnorelationbetweenthem.

标准答案:C

知识点解析:细节题。从上题的解析中可以看出,气候变暖对于这种害虫的繁衍有

利.暖冬可以使他们的死亡率降低,故A、B、D错误。他们的关系是变暖可以导

致害虫数量的增长。

8、Whydowehavemorewildfiresnowthanbefore?

A、Becausethenumberofthebarkbeetlesisdecreasing.

Becausetreeswherebarkbeetleslivedryouteasilyandcatchfire.

C、Becausebarkbeetlespreventtheearthfromgettingwarmer.

D^Becausebarkbeetlesarecold-bloodedandneedfiretowarmuptheirbodies.

标准答案:B

知识点解析:推断题。眼据文章的第一段,气候变暖导致树木及土壤水分量减少,

导致火灾数量的增多。由此可见问题在于水分的减少。而这种害虫导致树木死亡,

死亡的树木含水量很低,就更容易着火,故选B。

9、Whatkindofchangeshasappearedinthelivingareaofbarkbeetles?

A、Theyaremovingfromthecoolercasttothewarmerwestareas.

B、Theyhavebecomeabletoliveinthehigherareasofthemountains.

C、TheyaremovingfromAlaskatoWyoming.

D^Theyhavecometoliveinthedeadtreesafterwildfires.

标准答案:B

知识点解析:细节题。由文章的最后一段,“Warmingisalsoexpandingthe

beetles'rangeintohigherakitudes.”可知,因为气候变暖,地球上高海拔地区也开始

温度升高,这样这种害虫的生活范围向上延展,可以在更大的范围内生活,故B

正确。这种扩大是海拔上的,立体的,而不是横向的,故A、C错误。D文中没有

提及。

10、Whichofthefollowingstatementistrue?

A、Thelifeexpectancyofthebarkbeetlesisbecomingshorter.

B、Globalwarmingdoesn,tinfluencetheearth'sbiologicalsystems.

C>Thenumberofwoodpeckersisrapidlyincreasingbecauseofwarmerwinters.

D、Wecanrelyonbarkbeetlestoindicateglobalclimatechange.

标准答案:D

知识点解析:细节题。艰据本文的大意(见第1题解析),A、B和文章的意思相

悖。C中因为暖冬数量增加的是这种甲虫,而不是啄木鸟,故错误。D这一细节在

文中结尾,“thebeetlesseemtobeareliableindicatorofglobalclimatechange''提及

过,故选Do

Inmanycountries,governmentsarctryingtogetcitizenstocatmorehealthily.Oneway

inwhichgovernmentsaretryingtodothisisbyincreasingtaxesonfoodsthatare

unhealthy.Forexample,Denmark,acountryinEurope,taxesproductsthatcontainalot

ofsugar,suchasicecreamandchocolate.In2011,theDanishgovernmentwentonestep

furtherandintroducedataxonthefatscontainedinfoodslikebutterandcheese.

However,expertsdonotagreewhethersuchtaxeswork.Somehealthexpertshave

alwaysdisagreedwithtaxingfats.Theysayweneedtoconsidereachfoodseparatelyand

notsimplyworryabouthowmuchfatitcontains.Forthesamereason,Danishdairy

farmersfeltthatthegovernmentwaswrongtosaythatthefoodstheyproduceare

unhealthy.Cheese,forexample,containsalotoffat,butitdoesnotseemtoleadto

healthproblemsinthewayotherkindsoffatdo.Suchcriticsbelievethatthegovernment

shouldinsteadUytomakehealthyfoods,suchasvegetables,cheaper.Therehavealso

beeneconomicproblemsbecauseofthetax.TheDanishgovernmentthoughtthatifthe

costoffattyfoodswentup,peoplewouldnotbuyasmuchofthem.However,some

foodssuchasbutterandchccscarcanimportantpartofthetraditionalDanishdiet.Since

thesecouldnotbeboughtinDenmarkatreasonableprices,manyDanishpeoplebegan

shoppinginnearbycountries.Onestudydiscoveredthatasmanyas48percentofDanish

peopleweregoingtoGermanyorSwedentodoshopping,andtheDanisheconomylost

about$1.8billionbecauseofthis.Forthesereasons,theDanishgovernmentdecidedto

getridofthetaxafteronlyoneyear.However,manydoctorssaythatoneyearisnotlong

enoughtoknowifthetaxhelpedDanishcitizens'health.TheyclaimthattheDanish

governmentisworriedmoreabouttheeconomythanitisabouttheDanishpeople.But

eventhoughthetaxdidnotworkinDenmark,somecountrieshavenotgivenuponthe

idea.TheUnitedKingdomandFrancearethinkingoftryingsimilartaxes,andHungary

hasalreadyputataxonfattyfoods.

11、Whatisonewaygovernmentsaretryingtomakepeoplehealthier?

A、Bypromotinglow-fatversionsofmanypopularfoods.

B、Byforcingthemtopaymoreforcertainkindsoffood.

C、Bydecreasingtheamountofsugarallowedinproducts.

D、Bycreatinglawsconcerninghowmuchpeopleareallowedtoeat.

标准答案:B

知识点解析:细节题。在很多国家,为了使本国的人民吃得更健康.政府正在准备

增加不健康食物的消费税,以减少人们对这些食物的购买。本题的答案可以从文章

的第—段得出."'governmentsaretryingtogetcitizenstoeatmorehealthily...Oneway

inwhichgovernmentsaretryingtodothisisbyincreasingtaxesonfoodsthat

areunheakhy.”即促使人们在买这些食物的时候多花钱,故选B。其他三项文中都

没有提及。

12、DairyfarmersinDenmark.

A^feltthattheywerebeingmadetoproducetoomanyproducts

B、wereworriedthatthegovernmentwasplanningtobancheese

C、arguedthattheirproductsarehealthierthanthegovernmentsaid

D、admittedthattheirproductscontainedanunhealthyamountoffat

标准答案:C

知识点解析:细节题。该细节在文章的第二段,^Danishdairyfarmersfeltthatthe

governmentwaswrongtosaythatthefoodstheyproduceareunhealthy.Cheese,for

example,containsalotoffat»butitdoesnotseemtoleadtohealthproblemsinthe

wayotherkindsoffatdo.”即他们认为他们生产的食物不是不健康的.故选C。

13、Whatwasoneresultoftaxingfoodsthathavealotoffat?

A、Manypeopleavoidedpayingthetaxbyshoppingabroad.

B、ManypeoplebeganeatingtraditionalDanishfood.

C、Itmadehealthyfoodslikefruitandvegetablescostmore.

D、ItcausedpeopleinGermanyandSwedentospendlessmoney.

标准答案:A

知识点解析:细节题。该细节在文章的第三段,“Sincethesecouldnotbeboughtin

Denmarkatreasonableprices,manyDanishpeoplebeganshoppingin

nearbycouniries.”即他们离不开这些食物,只能去邻国买这些产品。故A符合题

意。

14、ManyductorslliinkdialtheDanishgovcriiiiicnl.

A、couldhaveendedthetaxonfatsmuchsooner

B、ismoreconcernedaboutmoneythanthehealthofitscitizens

C、hasenoughinformationtoseeiftaxesonunhealthyfoodsareeffective

D、shouldaskothercountriestomakelawsagainstsellingfattyfoods

标准答案:B

知识点解析:细节题。医生的看法可以在文章的最后一段找到,umanydoctorssay

thatoneyearisnotlongenoughtoknowifthetaxhelpedDanish

citizens,health...TheyclaimthattheDanishgovernmentisworriedmoreaboutthe

economythanitisabouttheDanishpeople.”即他们认为政府考虑经济多些,而不是

人民的健康,故与B相符。

15、Whichofthefollowingstatementistrue?

A、Somepeoplethinkthatmakinghealthyfoodscheaperwouldworkbetterthanatax.

B、Healthexpertssaythatweshouldeatmoredairyproductsthanotherfoods.

C、Somekindsoffruitandvegetablesareasunhealthyasmeat.

D、Manypeoplebuyunhealthyfoodstoavoidpayinghightaxes.

标准答案:A

知识点解析:细节题。“Suchcriticsbelievethatthegovernmentshouldinsteadtryto

makehealthyfoods,suchasvegetables,cheaper.”即不该多收不健康食物的税,而

应该降低健康食物的价格,故A正确。而文中健康专家说“weneedtoconsidereach

fbodscparatclyandnotsimplyworryabouthowmuchfatitcontains”.并没有说奶制品

更健康,故B错误。文中没有提到水果和蔬菜不健康,故C错误。D与文意相

反,不健康的食物有更高的税,人们为了避开交税而不会买不健康的食物,故选

Ao

ThoughitnowseemsmerelyanepisodeinthelastyearofWorldWarI,theinfluenza

pandemicoftheautumnof1918wasoneofthethreegreatestoutbreaksofdiseasein

history.OnlytheplagueofJustinianandtheBlackDeathcomparewithit.Aquarterof

theworld'spopulationwasaffected;allinall,itkilled22millionpeople,almosttwiceas

manyaswerekilledinthewaritself.InIndia,morepeoplediedfrominfluenzainafew

monthsthanhaddiedfromcholeraintwentyyears.IntheUnitedStates,halfamillion

peopledied.Throughcenturies,thecourseofepidemicshasrunfromeasttowest.The

1918influenzaepidemicfollowedthispattern,reachingAmericalast.Traditionally.Asia

hasbeenthematrixofdisease,almostasthoughthereexisted,inthevastnessof

Mongolia,apermanentfocusofinfectionwhichwoulderuptperiodicallyintotherestof

theworld.SomedoctorsmaintainedthattheinfluenzawasintroducedbyChineselabor

battalionsthatlandedonthecoastofFrance.SomeattributedittoRussiansoldiers

amvingfromVladivostock.OthersthoughtitmighthavedevelopedinSpainfroman

earlierbronchitiswhichwassoprevalentduringthespringthatthename"Spanish"was

giventotheautumninfluenza.Therewasevenonetenuoustheorythatthediseasesprang

intobeinginanisolatedGeorgiatrainingcampduringthewinterof1917andmigrated

westwarduntilithadcircumnavigatedtheearth.Influenzaisstillamysteriousdisease.

Nooneyetknowswhetheritisonevirusorseveral,whyitoccursincycle,orhowand

whereitliesdormantbetweenepidemics.Therearetheoriesofweather,theoriesofthe

wearingoffofgroupimmunity,andevenaiheoryofdeterminationbyeconomic

circumstances.Themostgenerallyheldcurrentexplanationis,however,thatapandemic

likethatof1918ariseswhenanewandexplosivestrainofvirusdevelopsthrougha

spontaneousprocessofmutationorrenewal.

16、Whatisthisarticlemainryabout?

A^TheBlackPlague.

B、Thefluepidemicof1918.

C、TheplagueofJustinian.

D、Allepidemics.

标准答案:B

知识点解析:主旨题。短文第一段第一句"Thoughitnowseemsmerelyanepisodein

thelastyearofWorldWarI.theinfluenzapandemicoftheautumnof1918wasoneof

thcthrccgreatestoutbreaksofdiseaseinhistory”指出文章的主题.即短文主要是讲

theinfluenzapandemicof1918,与选项B吻合,故选B。

17、Whichofthefollowingistrueoftheepidemicof1918?

A、Itwasoneofthethreegreatestoutbreaksofdiseaseinhistory.

B、Itaffectedaquarteroftheworld'spopulation.

C^Itwasthegreatestoutbreakofdiseaseinthehistoryofman.

D^BothAandB.

标准答案:D

知识点解析:细节题。艰据短文第一段中“theinfluenzapandemicoftheautumnof

1918wasoneofthethreegreatestoutbreaksofdiseaseinhistory"可知选项A符合短文

表述:根据“Aquarteroftheworld'spopulationwasaffbcled”可知选项B也符合短文

表述,故选项D正确。选项C在文中没有涉及。

18、Whichofthefollowingisaresultofthe1918epidemic?

A、22millionpeopledied.

B、22millionAmericansdied.

CNHalfasmanypeoplediedaswerekilledinWorldWarI.

D、AsmanypeoplediedaswerekilledinWorldWarI.

标准答案:A

知识点解析:细节题。短文第一段指出“allinall,itkilled22millionpeople,almost

twiceasmanyaswerekilledinthewaritself\故选项A正确。

19、Throughthecenturies,thecourseofepidemicshasbeen.

A、fromwesttoeast

B、fromnorthtosouth

C^fromeasttowest

D、haphazard

标准答案:C

知识点解析:细节题。限据短文第二段第一句"Throughcenturies,thecourseof

epidemieshasrunfromeasttowest.”故选项C正确。

20、Theword"mutation"(Line6,Para.3)means.

A、development

B>evolution

C^cultivation

D^transformation

标准答案:D

知识点解析:词汇题。通过理解上下文,从相近的词语中猜测词义。文中提到了

“mutationorrenewa「故可知renewal便是它的近义词,意为“突变,演变”,D选项

也表示这个意思,故选D。

大学英语四级改革适用(阅读)模拟试

卷第2套

一、仔细阅读(本题共20题,每题1.0分,共20分。)

Imagineananimalthatbecomesfrozenincoldweather.Then,whenitgetswarmer,the

animalsimplyunfreezesandgoesbacktoitsnormallite.Althoughthismaysoundlike

somethingfromascience-fictionmovie,itisexactlywhathappenstothewoodfrogover

winterandspring.Whenwinterbegins,thefrog,whichisfoundthroughoutmuchof

Canada,buriesitselfinleavesanddirt.Asthegroundbeginstofreeze,sodoesthefrog1s

body.Normally,ifalivingcreatureisfrozen,thecellsinsideitsbodyaredestroyed,

leadingtodeath.How,then,doesthewoodfrogsurvive?Thesecretliesinthefactthat

althoughthewaterbetweenthecellsinthefrog'sbodybecomesfrozen,thewaterinside

thecellsdoesnotfreeze.Beforethewinterbegins,thefrogstoresstarchinitsbody.As

theweathergetscolder,thedropintemperaturecausesthefrog'sbodytochangethis

starchintoglucose.Thisglucose,inturn,lowersthetemperatureatwhichtheliquid

insidethefrog'scellsfreezes.Asaresult,thecellsdonotfreezeevenatverylow

temperatures,allowingthefrogtostayalive.Somewoodfrogsstayinthisfrozenstate一

withtheirheartsstoppedcompletely—formonthswithoutharm.Nowresearchersare

hopingtoadaptthewoodfrog'ssecrettohelpthempreservehumanorgansfor

transplants.Currently,afterorgansarcremovedfromadonor'sbody,theyarcpackedin

aspecialliquidandkeptverycold.However,theycannotbefrozenbecausetheice

woulddamagethecellsintheorgans.Forthisreason,theorgansmustbeusedquickly.If

doctorshadawaytopreserveorganslonger,theywouldhavemoretimetofindthebest

matchesamongpeoplewaitingfororgantransplants.Thereisstillalotaboutthewood

frogthatscientistsdonotunderstand.Theystillhavetoworkout,forexample,exactly

howthefrogisabletounfreezeitselfandwhatactuallyrestartsthefrog'sheartwhenthe

wualherbuuomeswanner.Whalisuluar,however,isdiallessonslearnedbystudyingthis

tinycreaturecouldbeofgreatbenefittohumansinthenearfuture.

1、Thewoodfrogisunusualbecauseit.

A^canmoveabouteasilyonfrozenground

B、buriesitselfinleavesanddirtatthestartofspring

C、survivesevenafteritsbodyhasbecomefrozen

D^livesanormallifeeveninverycoldweather

标准答案:C

知识点解析:细节题。限据短文开头内容...frozenincoldweather...unfreezesand

goesbacktoitsnormallife.以及thismaysound...science—fictionmovie...woodfrog

可知woodfrog的不寻常之处在于即使它全身都结冰了,它也可以复活。故选C。

2、Whateffectdoestheglucoseproducedinthewoodfrog,sbodyhave?

A、Itstopsthewaterinthefrog5scellsfromfreezingincoldweather.

B、Itlowersthetemperatureinthespacesbetweenthefrog'scells.

C、Itcausesthefrog*scellstoproducemorestarch.

D、Itallowsthefrog5scellstoproducemorewater.

标准答案:A-

知识点解析:细节题。短文第二段中间指出Thisglucose,inturn,lowersthe

temperatureatwhichtheliquidinsidethefrog'scellsfreezes.意为这种葡萄糖可以降

低woodfrog细胞液体垢冰的温度。由此可知这种葡萄糖使细胞里的水不会结冰,

故选Ao

3、Researchersarehopingtousethewoodfrog'ssecrettoallowthemto.

A、usetransplantorgansmorequickly

B、removeorgansfromadonormoreeasily

C>unfreezetransplantorganswithchemicalsfromthefrogs

D、keeptransplantorganslongerthantheycannow

标准答案:D

知识点解析:细节题。艰据短文第三段前半部分helpthempreservehumanorgans

fortransplants和最后Ifdoctorshadawaytopreserveorganslonger,可知选项D正

确。

4、Whichisonethingthatscientistswouldliketofindoutaboutthewoodfrog?

A、Whetheritbecomesfrozeninthespring.

B、Howitsheartstartsagainwhenitunfreezes.

C>Whichpartsofitsbodyfreezeincoldweather.

D、Whyittakessolongtounfreezeattheendofwinter.

标准答案:B

知识点解析:细节题。祚者在最后一段指出...workout…howthefrogisableto

unfreezeitselfandwhatactuallyrestartsthefrog'sheart...,由此可知,答案为Bo

5、Whichofthefollowingistrue?

A、Thewoodfrogneedsstarchinordertostopthecellsinitsbodyfromdying.

B、Researchersaretryingtofindawaytotransplanttheorgansofwoodfrogs.

C^Woodfrogsusetheglucoseintheircellstounfreezetheirbodiesattheendofwinter.

D、ScientistsarenowusingtheprocessthattakesplaceinawoodfYog'sbodytoprepare

humanorgansfortransplant.

标准答案:A

知识点解析:细节题。艰据短文第二段对woodfrog这种特殊能力的描述以及the

frogstoresstarchinitsbody和Thisglucose...lowersthetemperalure…可知选项A正

确.选项C错误:根据短文倒数第二段中researchersarehopingtoadapt...help

thcmprcscrvchumanorgansfortransplants,由此可排除B、D。故选A。

Sinceancienttimes,thedestructiveeffectsofearthquakesonhumanlivesandproperty

haveencouragedthesearchforreliablemethodsofearthquakeprediction.Thischallenge

remainsandmodernscientistscontinuetosearchlorreliablemethodstodeterminethe

time,placeandintensityofindividualquakes.Onepredictiontechniqueinvolvesan

analysisoftherecurrence(重现)ratesofearthquakesasindicatorsoffutureactivity.

Earthquakesareconcentratedincertainareasoftheworldwhicharesubjecttoconstant

movementsofearth'splatesanditisintheseareasthatscientistsfocustheir

investigations.Thissearchforpre-earthquakephenomenahasreceivedparticular

attention.IncontrasttotheancientGreeksandRomans,whoreliedonthecryingofdogs

asawarningsign,modernscientistshavefocusedonphysicalevidenceforacoming

earthquake.Evidenceofplatestraincanbefoundbymeasuringrelativemovements,

whilechemicalchangesalsooffersignalsforscientistsAnalysisofthechangesin

magneticpropertiesandconduclivily(传导性)ofrocksprovidesfurtherdatafor

prediction.Theelectricalandmagneticpropertiesofcrustal(地壳的)rocksare

particularlysensitivetostrain.Theconductivityofcrustalrockisdeterminedbythe

degreetowhichtherockissoakedwithfluidandtheelectrolyticpropertiesofthose

fluids.Beforelargeearthquakes,smallfracturesdevelopinrocks,whichchangethe

quantityoffluidpresent.Thesechangescanbemeasuredandprovideusefuldata.

However,similarchangesinthefluid,bearingcapacityofrockcanoccurasaresultof

otherfactorssuchaschangesinthewatertable,andthereforethistechniqueisnot

entirelyreliable.Theancientbelievethatthebehaviorofbirds,catsanddogsprovides

evidenceofinevitableearthquakeshasrecentlybeenattendedasaresultoftestscarried

outinCalifornia.Ithasbeenshownthatchangestakingplaceinthemetabolic(新陈弋谢

的)ratesoftheseanimalscorrelatewithsubsequentseismicactivity.Itisassumedthatthe

animalsaresensitivetotheseismicwaveswhichprecedemajorquakes.Inzoneswhere

earthquakesareknowntooccur,improvedconstructiontechniquescansignificantly

reducetheeffectsofseismicwaves.Ifmoreaccurateinformationregardingthetimeand

intensitywereavailable,governmentscouldtakeevenmoreeffectivemeasurestoreduce

theimpactonhumanlife,if,however,anentirelyaccuratepredictiontechniquebecame

available,therewouldbesignificantsocialandpoliticalimplications.

6、Recurrenceratesofearthquakescanhelppredictfuturequakesbecause.

improvementinmathematicsallowsfigurestobemoreaccurate

B>thismethodhasbeenusedsinceancienttimesandprovedveryeffective

C、mostscientistsfocustheirinvestigationsonthequakesofcertainareas

D^continuousplatemovementsoftenresultinearthquakesincertainareas

标准答案:D

知识点解析:细节题。由题干可定位至第一段最后两句,根据Earthquakes

areconcenHatedincertainareasoftheworldwhicharesubjecttoconstantmovements

ofearth'splates可知,地震总是集中在受到地球板块持续运动影响的特定区域。故

选项D正确。

7、Whichofthefollowing

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