职称英语考试理工类完形填空15篇考前突击背诵整理.docx
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职称英语考试理工类完形填空15篇考前突击背诵整理
第1篇CaptainCookArrowLegend
Itwasagreatlegendwhileitlasted,butDNAtestinghas
(1)finallyendedatwo-century-oldstoryoftheHawaiianarrowcarvedfromtheboneofBritishexplorerCaptainJamesCook
(2)whodiedintheSandwichIslands’in1779.
“Thereis(3)noCookintheAustralianMuseum,’’museumcollectionmanagerJudePhilipsaidnotlongagoinannouncingtheDNAevidencethatthearrowwasnotmadeofCook’Sbone.Butthatwillnotstopthemuseumfromcontinuingtodisplaythearrowinits(4)exhibition,“Uncovered:
TreasuresoftheAustralianMuseum,”which(5)doesincludeafeathercapepresentedtoCookbyHawaiianKingKalani’opu’uin1778.
CookwasoneofBritain’sgreatexplorersandiscreditedwith(6)discoveringthe“GreatSouthLand,"(7)nowAustralia,in1770.HewasclubbedtodeathintheSandwichIslands,nowHawaii。
The1egendofCook’sarrowbeganin1824(8)whenHawaiianKingKamehamehaonhisdeathbedgavethearrowtoWilliamAdams,aLondonsurgeonandrelativeofCook’swife,sayingitwasmadeofCook’sboneafterthefatal(9)fightwithislanders.
Inthe1890sthearrowwasgiventotheAustralianMuseumandthelegendcontinued(10)untilitcameface=to-facewithscience.
DNAtestingbylaboratoriesinAustraliaandNewZealandrevealedthearrowwasnotmadeofCook’sbonebutwasmore(11)likely madeofanimalbone。
saidPhilp.
However,Cook’sfans(12)refusetogiveuphopethatoneCooklegendwillprovetrueandthatpartofhisremainswillstillbeuncovered.astheysaythereisevidencenota11ofCook’sbodywas(13)buriedatseain1779.“Onthisoccasiontechnologyhaswon",”saidCliffThornton,presidentoftheCaptainCookSociety,ina(14)statementfromBritain.“ButIam(15)sure thatoneofthesedays…oneoftheCooklegendswillprovetobetrueanditwillhappenoneday.’’
第2篇AvalancheandItsSafety
Anavalancheisasuddenandrapidflowofsnow,oftenmixedwithairandwater,downamountainside.Avalanchesare
(1)amongthebiggestdangersinthemountainsforbothlifeandproperty.
Allavalanchesarecausedbyanover-burdenofmaterial,typicallysnowpack,thatistoomassiveandunstablefortheslope
(2)thatsupportsit.Determiningthecriticalload,theamountofover-burdenwhichis(3)likelytocauseanavalanche,(4)isacomplextaskinvolvingtheevaluationofanumberoffactors.
Terrainslopesflatterthan25degreesorsteeperthan60degreestypicallyhavealow(5)riskofavalanche.Snowdoesnot(6)gathersignificantlyonsteepslopes;also,snowdoesnot(7)floweasilyonflatslopes.Human-triggeredavalancheshavethegreatestincidencewhenthesnow'sangleofrestis(8)between35and45degrees;thecriticalangle,theangleatwhichthehumanincidenceofavalanchesisgreatest,is38degrees.Theruleofthumbis:
Aslopethatis(9)flatenoughtoholdsnowbutsteepenoughtoskihasthepotentialtogenerateanavalanche,regardlessoftheangle.Additionally,avalancheriskincreaseswith(10)use;thatis,themoreaslopeisdisturbedbyskiers,themorelikelyitisthatanavalanchewilloccur.
Duetothecomplexityofthesubject,wintertravellinginthebackcountryisnever100%safe.Goodavalanchesafetyisacontinuous(11)process,includingrouteselectionandexaminationofthesnowpack,weather(12)conditions,andhumanfactors.Severalwell-knowngoodhabitscanalso(13)reducetherisk.Iflocalauthoritiesissueavalancheriskreports,theyshouldbeconsideredandallwarningsshouldbepaid(14)attentionto.Neverfollowinthetracksofotherswithoutyourownevaluations;snowconditionsarealmostcertaintohavechangedsincetheyweremade.Observetheterrainandnoteobviousavalanchepathswhereplantsare(15)missingordamaged.Avoidtravelingbelowotherswhomighttriggeranavalanche.
第3篇GiantStructures
Itisanimpossibletasktoselectthemostamazingwondersofthemodernworldsinceeveryyearmore1wonderfulconstructionsappear.Herearethreegiantstructureswhichareworthyofour2admirationalthoughtheymayhavebeensurpassedbysomemorerecentwonders.
ThePetronasTwinTowers1
ThePetronasTowerswerethetallestbuildingsintheworldwhentheywerecompletedin1999.Witha3heightof452metres,thetalltwintowers,liketwothinpencils,dominatethecityofKualaLumpur2.Atthe41stfloor,thetowersarelinkedbyabridge,symbolizingagatewaytothecity.TheAmerican4architectCesarPellidesignedtheskyscrapers.
Constructedofhigh-strengthconcrete,thebuildingprovidesaroundl,800squaremetresofofficespace5oneveryfloor.Andithasashoppingcentreandaconcerthallatthebase.Other6featuresofthisimpressivebuildingincludedouble-deckerlifts,andglassandsteelsunshades.
TheMillauBridge3
TheMillauBridgewasopenedin2004intheTarnValley,insouthernFrance.7Atthetimeitwasbuilt,itwastheworld'shighestbridge,8reachingover340matthehighestpoint.Thebridgeisdescribedasoneofthemostamazinglybeautifulbridgesintheworld.Itwasbuiltto9relieveMillau'scongestionproblems.ThecongestionwasthencausedbytrafficpassingfromParistoBarcelonainSpain.Thebridgewasbuilttowithstandthe10mostextremeseismicandclimaticconditions.Besides,itisguaranteedfor120years!
TheItaipuDam4
TheItaipuhydroelectricpowerplantisoneofthelargestconstructionsofitskindintheworld.ItconsistsofaseriesofdamsacrosstheRiverParana5,11whichformsanaturalborderbetweenBrazil6andParaguay.Startedin1975andtaking16yearstocomplete,theconstructionwascarriedoutasajointprojectbetweenthetwo12countries.Thedamiswell-knownforbothitselectricityoutputanditssize.In1995itproduced78%0fParaguay'sand25%0fBrazil's13energyneeds.Initsconstruction,the14amountofironandsteelusedwasequivalenttoover300EiffelTowers8.Itisa15trulyamazingwonderofengineering.
第4篇Animal’s“SixthSense”
AtsunamiwastriggeredbyanearthquakeintheIndianOceaninDecember,2004.ItkilledtensofthousandsofpeopleinAsiaandEastAfrica.Wildanimals,
(1)however,seemtohaveescapedthatterribletsunami.ThisphenomenonaddsweighttonotionsthatItheypossessa“sixthsense”for
(2)disasters,expertssaid.
SriLankanwildlifeofficialshavesaidthegiantwavesthatkilledover24,000peoplealongtheIndianOceanisland’scoastclearly(3)missedwildbeasts,withnodeadanimalsfound.
“Noelephantsaredead,not(4)evendeadrabbit.Ithinkanimalscan(5)sensedisaster.Theyhaveasixthsense.Theyknowwhenthingsarehappening.”H.D.Ratnayake,deputydirectorofSriLanka’sWildlifeDepartment,saidaboutonemonthafterthetsunamiattack.The(6)waveswashedfloodwatersupto2milesinlandatYalaNationalParkintheravagedsoutheast,SriLanka’sbiggestwildlife(7)reserveandhometohundredsofwildelephantsandseveralleopards.
“Therehasbeenalotof(8)apparentevidenceaboutdogsbarkingorbirdsmigratingbeforevolcaniceruptionsorearthquakes.Butithasnotbeenproven,”saidMatthewvanLieropananimalbehavior(9)specialistatJohannesburgZoo.
“Therehavebeenno(10)specificstudiesbecauseyoucan’treallytestitinalaborfieldsetting2,”hetoldReuters.Otherauthoritiesconcurredwiththis(11)assessment.
“Wildlifeseemtobeabletopickupcertain(12)phenomenon,especiallybirds…therearemanyreportsofbirdsdetectingimpendingdisasters,”saidCliveWalker,whohaswrittenseveralbooksonAfricanwildlife.
Animals(13)certainlyrelyontheknownsensessuchassmellorhearingtoavoiddangersuchaspredators.
Thenotionofananimal“sixthsense”-or(14)someothermythicalpower-isanenduringone3whichtheevidenceonSriLanka’sravagedcoastislikelytoaddto.
TheRomanssawowls(15)asomensofimpendingdisasterandmanyancientculturesviewedelephantsassacredanimalsendowedwithspecialpowersorattributes.
第5篇SingingAlarmsCouldSavetheBlind
Ifyoucannotsee,youmaynotbeabletofindyourwayoutofaburningbuilding----andthatcouldbefatal.AcompanyinLeedscouldchangeallthat
(1)withdirectionalsoundalarmscapableifguidingyoutotheexit.
SoundAlert,acompany
(2)runbytheUniversityofLeeds,isinstallingthealarmsinaresidentialhomefor(3)blindpeopleinSommersetandaresourcecentrefortheblindinCumbria.(4)Thealarmsproduceawiderangeoffrequenciesthatenablethebraintodeterminewherethe(5)soundiscomingfrom.
DeborahWithingtonofSoundAlertsaysthatthealarmsusemostofthefrequenciesthatcanbe(6)heardbyhumans.“It’saburstofwhitenoise(7)thatpeoplesaysoundslikestaticontheradio,”shesays.“Itslife-savingpotentialisgreat.”
Sheconductedanexperimentinwhichpeoplewerefilmedbythermal—imagingcamerastryingtofindtheirwayoutofalarge(8)smoke-filledroom.It(9)tookthemnearlyfourminutestofindthedoor(10)withoutasoundalarm,butonly15secondswithone.
Withingtonstudieshowthebrain(11)processessoundsattheuniversity.Shesaysthatthe(12)sourceofawidebandoffrequenciescanbepinpointedmoreeasilythanthesourceofanarrowband.Alarms(13)basedonthesameconcepthavealreadybeeninstalledonemergencyvehicles.
Thealarmswillalsoincluderisingorfallingfrequenciestoindicatewhetherpeopleshouldgoup(14)ordownstairs.Theywere(15)developedwiththeaidofalargegrantfromBritishNuclearFuels.
第6篇CarThievescouldBeStoppedRemotely
Speedingoffinastolencar,thethiefthinkshehasgotagreatcatch.Butheisinanastysurprise.Thecarisfittedwitharemoteimmobilizerandaradiosignalfromacontrolcentermilesawaywillensurethatoncethethiefswitchestheengine1off,hewillnotbeabletostart