职称英语理工类完形填空考前背诵版.docx

职称英语理工类完形填空考前背诵版.docx

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职称英语理工类完形填空考前背诵版

第一篇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.’’

第二篇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.

第三篇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.

第四篇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.

第五篇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.

第六篇CarThievescouldBeStoppedRemotely

Speedingoffinastolencar,thethiefthinkshehasgotagreatcatch.Butheisinanastysurprise.Thecarisfittedwitharemoteimmobilizerandaradiosignalfromacontrolcentermilesawaywillensurethatoncethethiefswitchestheengine1off,hewillnotbeabletostartitagai