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大學(xué)英語四級改革適用(閱讀)模擬試
卷8(共9套)
(共190題)
大學(xué)英語四級改革適用(閱讀)模擬試
卷第1套
一、仔細閱讀(本題共20題,每題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
標準答案:B
知識點解析:細節(jié)題。該細節(jié)在文章的第一段開頭.如把病歷從一個醫(yī)院轉(zhuǎn)移到另
外一個醫(yī)院很慢,醫(yī)生的筆跡不好辨認等等。選項中,郵費的問題文中沒有提到,
故A錯誤,沒有好的記錄系統(tǒng)文中也沒有提到。抄寫診斷書的內(nèi)容文中也沒有涉
及,只有B,書寫很難辨認文中提到了,故選B。
2、Whatwasmadepossiblebyadoptingcomputertechnologyinmedical
communication?
A、Patientsdon'thavetocometothephannacytopickuptheirmedicine.
B、Doctorscanprovideatreatmentwithouttheassistanceofnurses.
C^Hospitalscanacceptmorepatientsattheemergencyroom.
DxPatientsathomecancoinmnnicatewiththeirdoctorabouttheirbloodpressure.
標準答案:D
知識點解析:細節(jié)題。該細節(jié)在文章的第二、三段,比如醫(yī)生可以在第一時間知道
你的過往病歷,方便醫(yī)生和患者的溝通,和患者信息的交換,更安全高效等。選項
中,文中沒有說到患者可以不去抓藥,也沒有說醫(yī)生不需要護士幫忙治療,或者說
醫(yī)院可以在急救室接受病人,A、B、C都沒有提到,只有D正確,病人可以在家
和醫(yī)生溝通自己的血壓。
3^Inmakingprescriptions,.
A、doctorsshouldbecarefulnottowritedownpersonalinformation
B、itisdifferenttofindoutallthepatient,sallergies
C、thenewtechnologyhelpsavoiderrorsabouttheamountofmedication
D、doctorsandnursesworktogethertodoublecheckwhoreceivedthemedication
標準答案:C
知識點解析:細節(jié)題。艱據(jù)文章的第三段,在處方方面。4ithcycanalsoremindthe
doctoraboutpotentialadversedrug-druginteractionsorpatientdrugallergies,and
evenrecommendanadjusteddosebasedonapatient'skidneyfunction,,?''intravenous
drugsarcdeliveredthrough4smartpumps'thatensurethedoseisacceptable”,即提醒醫(yī)
生藥物間不良的相互作用或藥物過敏,還會根據(jù)患者的腎功能推薦藥量.可以控制
靜脈注射的約量等等,選項中只有避免約物用量錯誤符合題意。
4、Computerizinghcalth-caresystems.
A、arestillimprovingandbecomingsafer
B、requiremanyspecialistsaboutcomputerstoavoidaccidents
C、solveeveryproblemwehavenowinhospitals
D^areconvenientfordoctorsandnurses,butnotforpatients
標準答案:A
知識點解析:推斷題。根據(jù)文章的最后一段,作者提到如果操作不當(dāng),會使醫(yī)生迷
惑降低病歷的可信度,但是這些問題只是有時發(fā)生??梢酝茢噙€是需要今后的改
進。而沒有說到需要電胸專業(yè)人員來避免危險.不可能解決醫(yī)院的一切問題。電子
病例對醫(yī)生、護士和患者都有利,故B、C、D錯誤,A正確。
5、Whichofthefollowingstatementsistrue?
A、Ihcnewhcalth-carcsystemwithcomputersistooexpensivetobeadoptedbymost
medicalinstitution.
B、Thenumberofhospitalswheredoctorsuseacomputerizedhealth-caresystemis
increasing.
C>Evencomputersmakemistakes,soitissaferfbrdoctorsandnursestocheckeach
prescription.
D、Inthefuture,patientsdon'thavetogotothehospitalbecausetheycangetthe
diagnosisandtheprescriptiononline.
標準答案:B
知識點解析:細節(jié)題。文章的第一段和最后一段提到這種系統(tǒng)正在被越來越多的醫(yī)
院使用,雖然貴,但是收效很大,但是沒有說到大多數(shù)機構(gòu)都買不起,故A錯
誤,B正確。也沒有提到電腦出錯的問題,故C錯誤。電子病歷只是方便了醫(yī)生和
患者的溝通,但并不是說患者就可以不去醫(yī)院了,故D錯誤。故選B。
Astheearth'ssurfaceswarm,evaporation(蒸發(fā))isdryingoutforestsandsoils,increasing
susceptibilitytofire.Lastsummer,morethan7.3millionacresofU.S.forestsburned
duringanintensedrought.Mostalarmingly,asanintergovernmentalpanelconcludedin
2001,earth'sbiologicalsystemsarealreadyrespondingtoclimatechange.Thecurrent
epidemic(傳染?。﹐fbarkbeetlesaddsanewdimensiontotheriskoffires.Mountain
barkbeetlesattacklodgcpolc,pondcrosa(黃松),Douglassfir(極木),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(幼蟲)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
標準答案:D
知識點解析?:細節(jié)題。本文講述了因為全球變暖,導(dǎo)致一種害蟲在森林肆虐的情
況。因為全球變暖,樹木的樹脂干枯,不能淹死入侵的害蟲,導(dǎo)致害蟲的繁殖量增
大,幼蟲死亡率降低,在森林中肆虐。故A錯誤。"Woodpeckersandnulhatches
keepadultnumbersincheck,butwithwarmerwinters,beetlepopulationscan
quadrupleinayear,outpacingtheirpursuers^,故它的天敵不能有效地控制蟲害,B
錯誤。由“Thegalleriesofeggstheylayinsidethebark..”,可以看出他們把卵產(chǎn)在樹
皮下,故C錯誤。從"mildwintersinWyominghavehelpedthebeetlelarvae(幼
蟲)survivetheseason”中看出D正確。
7、Whatistherelationshipbetweenbarkbeetlesandclimatechange?
A、Moreandmorebarkbeetlesdieduetoglobalwanning.
B、Barkbeetleshavemoreriskofdyinginwarmingwinters.
C、Globalwarmingcausesanincreaseinthenumberofbarkbeetles.
D、Thereisnorelationbetweenthem.
標準答案:C
知識點解析:細節(jié)題。從上題的解析中可以看出,氣候變暖對于這種害蟲的繁衍有
利.暖冬可以使他們的死亡率降低,故A、B、D錯誤。他們的關(guān)系是變暖可以導(dǎo)
致害蟲數(shù)量的增長。
8、Whydowehavemorewildfiresnowthanbefore?
A、Becausethenumberofthebarkbeetlesisdecreasing.
Becausetreeswherebarkbeetleslivedryouteasilyandcatchfire.
C、Becausebarkbeetlespreventtheearthfromgettingwarmer.
D^Becausebarkbeetlesarecold-bloodedandneedfiretowarmuptheirbodies.
標準答案:B
知識點解析:推斷題。眼據(jù)文章的第一段,氣候變暖導(dǎo)致樹木及土壤水分量減少,
導(dǎo)致火災(zāi)數(shù)量的增多。由此可見問題在于水分的減少。而這種害蟲導(dǎo)致樹木死亡,
死亡的樹木含水量很低,就更容易著火,故選B。
9、Whatkindofchangeshasappearedinthelivingareaofbarkbeetles?
A、Theyaremovingfromthecoolercasttothewarmerwestareas.
B、Theyhavebecomeabletoliveinthehigherareasofthemountains.
C、TheyaremovingfromAlaskatoWyoming.
D^Theyhavecometoliveinthedeadtreesafterwildfires.
標準答案:B
知識點解析:細節(jié)題。由文章的最后一段,“Warmingisalsoexpandingthe
beetles'rangeintohigherakitudes.”可知,因為氣候變暖,地球上高海拔地區(qū)也開始
溫度升高,這樣這種害蟲的生活范圍向上延展,可以在更大的范圍內(nèi)生活,故B
正確。這種擴大是海拔上的,立體的,而不是橫向的,故A、C錯誤。D文中沒有
提及。
10、Whichofthefollowingstatementistrue?
A、Thelifeexpectancyofthebarkbeetlesisbecomingshorter.
B、Globalwarmingdoesn,tinfluencetheearth'sbiologicalsystems.
C>Thenumberofwoodpeckersisrapidlyincreasingbecauseofwarmerwinters.
D、Wecanrelyonbarkbeetlestoindicateglobalclimatechange.
標準答案:D
知識點解析:細節(jié)題。艱據(jù)本文的大意(見第1題解析),A、B和文章的意思相
悖。C中因為暖冬數(shù)量增加的是這種甲蟲,而不是啄木鳥,故錯誤。D這一細節(jié)在
文中結(jié)尾,“thebeetlesseemtobeareliableindicatorofglobalclimatechange''提及
過,故選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.
標準答案:B
知識點解析:細節(jié)題。在很多國家,為了使本國的人民吃得更健康.政府正在準備
增加不健康食物的消費稅,以減少人們對這些食物的購買。本題的答案可以從文章
的第—段得出."'governmentsaretryingtogetcitizenstoeatmorehealthily...Oneway
inwhichgovernmentsaretryingtodothisisbyincreasingtaxesonfoodsthat
areunheakhy.”即促使人們在買這些食物的時候多花錢,故選B。其他三項文中都
沒有提及。
12、DairyfarmersinDenmark.
A^feltthattheywerebeingmadetoproducetoomanyproducts
B、wereworriedthatthegovernmentwasplanningtobancheese
C、arguedthattheirproductsarehealthierthanthegovernmentsaid
D、admittedthattheirproductscontainedanunhealthyamountoffat
標準答案:C
知識點解析:細節(jié)題。該細節(jié)在文章的第二段,^Danishdairyfarmersfeltthatthe
governmentwaswrongtosaythatthefoodstheyproduceareunhealthy.Cheese,for
example,containsalotoffat?butitdoesnotseemtoleadtohealthproblemsinthe
wayotherkindsoffatdo.”即他們認為他們生產(chǎn)的食物不是不健康的.故選C。
13、Whatwasoneresultoftaxingfoodsthathavealotoffat?
A、Manypeopleavoidedpayingthetaxbyshoppingabroad.
B、ManypeoplebeganeatingtraditionalDanishfood.
C、Itmadehealthyfoodslikefruitandvegetablescostmore.
D、ItcausedpeopleinGermanyandSwedentospendlessmoney.
標準答案:A
知識點解析:細節(jié)題。該細節(jié)在文章的第三段,“Sincethesecouldnotbeboughtin
Denmarkatreasonableprices,manyDanishpeoplebeganshoppingin
nearbycouniries.”即他們離不開這些食物,只能去鄰國買這些產(chǎn)品。故A符合題
意。
14、ManyductorslliinkdialtheDanishgovcriiiiicnl.
A、couldhaveendedthetaxonfatsmuchsooner
B、ismoreconcernedaboutmoneythanthehealthofitscitizens
C、hasenoughinformationtoseeiftaxesonunhealthyfoodsareeffective
D、shouldaskothercountriestomakelawsagainstsellingfattyfoods
標準答案:B
知識點解析:細節(jié)題。醫(yī)生的看法可以在文章的最后一段找到,umanydoctorssay
thatoneyearisnotlongenoughtoknowifthetaxhelpedDanish
citizens,health...TheyclaimthattheDanishgovernmentisworriedmoreaboutthe
economythanitisabouttheDanishpeople.”即他們認為政府考慮經(jīng)濟多些,而不是
人民的健康,故與B相符。
15、Whichofthefollowingstatementistrue?
A、Somepeoplethinkthatmakinghealthyfoodscheaperwouldworkbetterthanatax.
B、Healthexpertssaythatweshouldeatmoredairyproductsthanotherfoods.
C、Somekindsoffruitandvegetablesareasunhealthyasmeat.
D、Manypeoplebuyunhealthyfoodstoavoidpayinghightaxes.
標準答案:A
知識點解析:細節(jié)題?!癝uchcriticsbelievethatthegovernmentshouldinsteadtryto
makehealthyfoods,suchasvegetables,cheaper.”即不該多收不健康食物的稅,而
應(yīng)該降低健康食物的價格,故A正確。而文中健康專家說“weneedtoconsidereach
fbodscparatclyandnotsimplyworryabouthowmuchfatitcontains”.并沒有說奶制品
更健康,故B錯誤。文中沒有提到水果和蔬菜不健康,故C錯誤。D與文意相
反,不健康的食物有更高的稅,人們?yōu)榱吮荛_交稅而不會買不健康的食物,故選
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.
標準答案:B
知識點解析:主旨題。短文第一段第一句"Thoughitnowseemsmerelyanepisodein
thelastyearofWorldWarI.theinfluenzapandemicoftheautumnof1918wasoneof
thcthrccgreatestoutbreaksofdiseaseinhistory”指出文章的主題.即短文主要是講
theinfluenzapandemicof1918,與選項B吻合,故選B。
17、Whichofthefollowingistrueoftheepidemicof1918?
A、Itwasoneofthethreegreatestoutbreaksofdiseaseinhistory.
B、Itaffectedaquarteroftheworld'spopulation.
C^Itwasthegreatestoutbreakofdiseaseinthehistoryofman.
D^BothAandB.
標準答案:D
知識點解析:細節(jié)題。艱據(jù)短文第一段中“theinfluenzapandemicoftheautumnof
1918wasoneofthethreegreatestoutbreaksofdiseaseinhistory"可知選項A符合短文
表述:根據(jù)“Aquarteroftheworld'spopulationwasaffbcled”可知選項B也符合短文
表述,故選項D正確。選項C在文中沒有涉及。
18、Whichofthefollowingisaresultofthe1918epidemic?
A、22millionpeopledied.
B、22millionAmericansdied.
CNHalfasmanypeoplediedaswerekilledinWorldWarI.
D、AsmanypeoplediedaswerekilledinWorldWarI.
標準答案:A
知識點解析:細節(jié)題。短文第一段指出“allinall,itkilled22millionpeople,almost
twiceasmanyaswerekilledinthewaritself\故選項A正確。
19、Throughthecenturies,thecourseofepidemicshasbeen.
A、fromwesttoeast
B、fromnorthtosouth
C^fromeasttowest
D、haphazard
標準答案:C
知識點解析:細節(jié)題。限據(jù)短文第二段第一句"Throughcenturies,thecourseof
epidemieshasrunfromeasttowest.”故選項C正確。
20、Theword"mutation"(Line6,Para.3)means.
A、development
B>evolution
C^cultivation
D^transformation
標準答案:D
知識點解析:詞匯題。通過理解上下文,從相近的詞語中猜測詞義。文中提到了
“mutationorrenewa「故可知renewal便是它的近義詞,意為“突變,演變”,D選項
也表示這個意思,故選D。
大學(xué)英語四級改革適用(閱讀)模擬試
卷第2套
一、仔細閱讀(本題共20題,每題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
標準答案:C
知識點解析:細節(jié)題。限據(jù)短文開頭內(nèi)容...frozenincoldweather...unfreezesand
goesbacktoitsnormallife.以及thismaysound...science—fictionmovie...woodfrog
可知woodfrog的不尋常之處在于即使它全身都結(jié)冰了,它也可以復(fù)活。故選C。
2、Whateffectdoestheglucoseproducedinthewoodfrog,sbodyhave?
A、Itstopsthewaterinthefrog5scellsfromfreezingincoldweather.
B、Itlowersthetemperatureinthespacesbetweenthefrog'scells.
C、Itcausesthefrog*scellstoproducemorestarch.
D、Itallowsthefrog5scellstoproducemorewater.
標準答案:A-
知識點解析:細節(jié)題。短文第二段中間指出Thisglucose,inturn,lowersthe
temperatureatwhichtheliquidinsidethefrog'scellsfreezes.意為這種葡萄糖可以降
低woodfrog細胞液體垢冰的溫度。由此可知這種葡萄糖使細胞里的水不會結(jié)冰,
故選Ao
3、Researchersarehopingtousethewoodfrog'ssecrettoallowthemto.
A、usetransplantorgansmorequickly
B、removeorgansfromadonormoreeasily
C>unfreezetransplantorganswithchemicalsfromthefrogs
D、keeptransplantorganslongerthantheycannow
標準答案:D
知識點解析:細節(jié)題。艱據(jù)短文第三段前半部分helpthempreservehumanorgans
fortransplants和最后Ifdoctorshadawaytopreserveorganslonger,可知選項D正
確。
4、Whichisonethingthatscientistswouldliketofindoutaboutthewoodfrog?
A、Whetheritbecomesfrozeninthespring.
B、Howitsheartstartsagainwhenitunfreezes.
C>Whichpartsofitsbodyfreezeincoldweather.
D、Whyittakessolongtounfreezeattheendofwinter.
標準答案:B
知識點解析:細節(jié)題。祚者在最后一段指出...workout…h(huán)owthefrogisableto
unfreezeitselfandwhatactuallyrestartsthefrog'sheart...,由此可知,答案為Bo
5、Whichofthefollowingistrue?
A、Thewoodfrogneedsstarchinordertostopthecellsinitsbodyfromdying.
B、Researchersaretryingtofindawaytotransplanttheorgansofwoodfrogs.
C^Woodfrogsusetheglucoseintheircellstounfreezetheirbodiesattheendofwinter.
D、ScientistsarenowusingtheprocessthattakesplaceinawoodfYog'sbodytoprepare
humanorgansfortransplant.
標準答案:A
知識點解析:細節(jié)題。艱據(jù)短文第二段對woodfrog這種特殊能力的描述以及the
frogstoresstarchinitsbody和Thisglucose...lowersthetemperalure…可知選項A正
確.選項C錯誤:根據(jù)短文倒數(shù)第二段中researchersarehopingtoadapt...help
thcmprcscrvchumanorgansfortransplants,由此可排除B、D。故選A。
Sinceancienttimes,thedestructiveeffectsofearthquakesonhumanlivesandproperty
haveencouragedthesearchforreliablemethodsofearthquakeprediction.Thischallenge
remainsandmodernscientistscontinuetosearchlorreliablemethodstodeterminethe
time,placeandintensityofindividualquakes.Onepredictiontechniqueinvolvesan
analysisoftherecurrence(重現(xiàn))ratesofearthquakesasindicatorsoffutureactivity.
Earthquakesareconcentratedincertainareasoftheworldwhicharesubjecttoconstant
movementsofearth'splatesanditisintheseareasthatscientistsfocustheir
investigations.Thissearchforpre-earthquakephenomenahasreceivedparticular
attention.IncontrasttotheancientGreeksandRomans,whoreliedonthecryingofdogs
asawarningsign,modernscientistshavefocusedonphysicalevidenceforacoming
earthquake.Evidenceofplatestraincanbefoundbymeasuringrelativemovements,
whilechemicalchangesalsooffersignalsforscientistsAnalysisofthechangesin
magneticpropertiesandconduclivily(傳導(dǎo)性)ofrocksprovidesfurtherdatafor
prediction.Theelectricalandmagneticpropertiesofcrustal(地殼的)rocksare
particularlysensitivetostrain.Theconductivityofcrustalrockisdeterminedbythe
degreetowhichtherockissoakedwithfluidandtheelectrolyticpropertiesofthose
fluids.Beforelargeearthquakes,smallfracturesdevelopinrocks,whichchangethe
quantityoffluidpresent.Thesechangescanbemeasuredandprovideusefuldata.
However,similarchangesinthefluid,bearingcapacityofrockcanoccurasaresultof
otherfactorssuchaschangesinthewatertable,andthereforethistechniqueisnot
entirelyreliable.Theancientbelievethatthebehaviorofbirds,catsanddogsprovides
evidenceofinevitableearthquakeshasrecentlybeenattendedasaresultoftestscarried
outinCalifornia.Ithasbeenshownthatchangestakingplaceinthemetabolic(新陳弋謝
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
標準答案:D
知識點解析:細節(jié)題。由題干可定位至第一段最后兩句,根據(jù)Earthquakes
areconcenHatedincertainareasoftheworldwhicharesubjecttoconstantmovements
ofearth'splates可知,地震總是集中在受到地球板塊持續(xù)運動影響的特定區(qū)域。故
選項D正確。
7、Whichofthefollowing
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