职称英语教材15篇完型填空word版.docx
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职称英语教材15篇完型填空word版.docx
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职称英语教材15篇完型填空word版
1.captaincookarrowlegend
Itwasagreatlegendshileitlasted,butDNAtestinghasendedatwo-century-oldstoryofthehawaiianarrowcarvedfromtheboneofbritishexplorercaptainjamescookdiedinthdsandwichislandsin1779.
Thereiscookinthdaustralianmuseum,museumcollectionmanagerjudephilipsaidnotlongagoinannouncingthednaevidencethatthearrowwasnotmadeofcook’sbone.Butthatwillnotstopthemuseumfromcontinuingtodisplaythearrowinits,uncovered:
treasuresoftheaustralianmuseum,whichincludeafesthercapepresentedtocookbyhawailiankingin1778.
Cookwasoneofbritain’sgreatexploreresandiscreditedwiththegreatsouthland,australia,in1770.hewasclubbedtodeathinthesandwichislands,nowhawaii.
Thelegendofcook’sarrowbeganin1824hawaiiankingkameonhisdeathbedgavethearrowtowilliamadams,alondonsurgeonandrelativeofcook’swife,sayingitwasmadeofcook’sboneafterthefatalwithislanders.
Inthe1890sthearrowwasgiventotheaustralianmuseumandthelegendcontinueditcamefacetofacewithscience.
Dnatestingbylaboratoriesinaustraliaandnewzealandrevealedthearrowwasnotmadeofcook’sbonebutwasmoremadeofanimalbone,saidphilp.
However,cook’sfanstogiveuphopethatonecooklegendwillprovetrueandthatpartofhisremainswillbeuncovered,astheysaythereisevidencenotallofcook’sbodywasatseain1779.Onthisoccasiontechnologyhaswon,saidcliff,presidentofthecaptaincooksociety,inafrombritain.Butiamthatoneofthesedays....oneofthecooklegendswillprovetobegrueanditwillhappenoneday.
2.avalancheanditssafety
Anavalancheisasuddenandrapidflowofsnow,oftenmixedwithairandwater,downamountainside.Avalanchesarethebiggestdangersinthemountainsforbothlifeandproperty.
Allavalanchesarecausedbyanover-burdenofmaterial,typicallysnowpace,thatistoomassiveandunstablefortheslopesupportsit.Determiningthdcritiaclload,theamountofoverburdenwhichistocauseanavalanche,acomplestaskinvolvingtheevaluationofanumberoffactors.
Terrainslopesflatterthan25degreesorsteeperthan60degreestypicallyhavealowofavalanche.Snowdoesnotsignificantlyonsteepslopes;also,snowdoesnoteasilyonflatslopes.Humantriggeredavalancheshavethegreatestincidencewhenthesnow’sangleofrestis35to45degrees;thecriticalangle,theangleatwhichthehumanincidenceofavalanchesisgreatest,is38degrees.Theruleofthumbis:
Aslopethatisenoughtoholdsnowbutsteepenoughtoskihasthepotentialtogenerateanavalanche,regardlessoftheangle.Additionlly,avalancheriskincreaseswith;thatis,themoreaslopeisdisturbedbyskiers,themorelikelyitisthatanavalanchewilloccur.
Duetothecomplexityofthesubject,wintertravellinginthebackcountryisnever100%safe.Goodavalanchesafetyisacontinuous,includingrouteselectionandexaminationofthesnowpack,weather,andhumanfactors.Severalwell-konwngoodhabitscanalsotherisk.Iflocalauthoritiesissueavalancheriskreports,theyshouldbeconsideredandallwarningsshouldbepaidto.Neverfollowinthetracksofotherswithoutyourownevaluations;snowconditionsarealmostcertaintohavechangedsincetheyweremade.Observetheterrainandnoteobviousavalanchepathswhereplantsareordamaged.Avoidtravelingbelowotherswhomighttriggeranavalanche.
3.Giantstructures
Itisimpossibletasktoselectthemostamazingwondersofthemodernworldsinceeveryyearmoreconstructionsappear.Herearethreestructureswhichareworthyofouralthoughtheymayhavebeensurpassedbysomemorerecentwonders.
Thepetronastwintowers
Thepetronastowerswerethetallestbuildingsintheworldwhentheywerecompletedin1999.Withaof452metres,thetalltwintowers,liketwothinpencils,dominatethecityofkualalumpur.Atthe41floor,thetowersarelinkedbyabridge,symbolizingagatewaytothecity.Theamericancesarpellidesignedtheskyscrapers.
Constructedofhighstrengthconcrete,thebuildingprovidesaround1800spuaremetresofofficespaceeveryfloor.Andithasashoppingcentreandaconcerthallatthebase.Otherofthisimpressivebuildingincludedoubledeckerlifts,andglassandsteelsunshades.
Themillaubridge
Themillaubridgewasopenedin2004inthetarnvalley,insouthernfrance.thetimeitwasbuilt,itwastheworld’shighestbridge,over340matthehighestpoint.Thebridgeisdescribedasoneofthemostamazinglybeautifulbridgesintheworld.Itwasbuilttomillau’scongestionproblems.Thecongestionwasthencausedbytrafficpassingfromparistobarcelonainspain.Thebridgewasbuilttowithstandtheextremeseismicandclimaticconditions.Besides,itisguaranteedfor120years.
Theitaipudam
Theitaipuhydroelectricpowerplantisoneofthelargestconstructionsofitskindintheworld.Itconsistsofaseriesofdamsacrosstheriverparana,formsanaturalborderbetweenbrazilandparaguay.Startedin1975andtaking16yearstocomplete.theconstructionwascarriedoutasajointprojectbetweenthetwo.Thedamiswellkonwnforbothitselectricityoutputanditssize.In1995itproduced78%ofparaguary’sand25%ofbrazil’sneeds.Initsconstruction,theofironandsteelusedwasequivalenttoover300eiffeltowers.Itisaamazingwonderofengineering.
4.animal’ssixthsense
Atsunamiwastriggeredbyanearthquakeintheindianoceanindecember,2004.Itkilledtensofthousandsofpeopleinasiaandeastafrica.Wildanimals,,seemtohaveescapedthatterribletsunami.Thisphenomenonaddsweighttonotionsthattheypossesasixthsensefor,expertssaid.
Srilankanwildlifeofficialshavesaidthegiantwavesthatkilledover24000peoplealongtheindianoceanisland’scoastclearlywildbeasts,withnodeadanimalsfound.
Noelephantsaredead,notadeadrabbit.Ithinkanimalscandisaster.Theyhaveasixthsense.Theyknowwhenthingsarehappening,HDR,deputydirectorofsrilanka’swildlifedepartment,saidaboutonemonthafterthetsunamiattack.Thewashedfloodwatersupto2milesinlandatyalanationalparkintheravagedsoutheast,sribiggestwildlifeandhometohundredsofwildelephantsandseveralleopards.
Therehasbeenalotofevidenceaboutdogsbarkingorbirdsmigratingbeforevolcaniceruptionsorearthquakes.Butithasnotbeenproven,saidmatthewvanlierop,ananimalbehavioratzoo.
Therehavebeennostudiesbecauseyoucan’treallytestitinalaborfieldsetting,hetoldreuters.Otherauthoritiesconcurredwiththis.
Wildlifeseemtobeabletopickupcertain,especiallybirds....Therearemanyreportsofbirdsdetectingimpendingdisasters,saidclive,whohaswrittenseveralbooksonafricanwildlife.
Animalsrelyontheknownsensessuchassmellorhearingtoavoiddangersuchaspredators.
Thenotionofananimalsixthsense-orothermythicalpower-isanenduringonewhichtheevidenceonsriravagedcoastislikelytoaddto.
Theromanssawowlsomensofimpendingdisasterandmanyancientculturesviewedelephantsassacredanimalsendowedwithspecialpowersorattributes.
5.singingalarmscouldsavetheblind
Ifyoucannotsee,youmaynotbeabletofindyourwayoutofaburningbuilding-andthatcouldbefatal.Acompanyinleedscouldchangeallthatdirectionalsoundalarmscapableofguidingyoutotheexit.
Soundalert,acompanytheuniversityofleeds,isinstallingthealarmsinaresidentialhomeforpeopleinsommersetandaresourcecentrefortheblindincumbria.Produceasiderangeoffrequenciesthatenablethebraintodeterminewheretheiscomingfrom.
Deborahwithingtonofsoundalertsaysthatthealarmsusemostofthefrequenciesthatcanbebyhumans.Itisaburstofwhitenoisepeoplesaysoundslikestaticontheradio,shesays.Itslifesavingpotentialisgreat.
Sheconductedanexperimentinwhichpeoplewerefilmedbytherman-imagingcamerastryingtofindtheirwayoutofalargeroom.Itthemnearlyfourminutestofindthedoorasoundalarm,butonly15secondswithone.
Withingtonstudieshowthebrainsoundsattheuniversity.shesaysthattheofawidebandoffrequenciescanbepinpointedmoreeasilythanthesourceofanarrowband.Alarmsthesameconcepthavealreadybeeninstalledonemergencyvehicles.
Thealarmswillalsoincluderisingorfalingfrequenciestoindicatewhetherpeopleshouldgoupdownstairs.theywerewiththeaidofalargegrantfrombritishnuclearfuels.
6.carthievescouldbestoppedremotely
Speedingoffinastolencar,thethiefthinkshehasgotagreatcatch.Butheisinanastysurprise.Thecarisfittedwitharemoteimmobilizer,andradiosignalfromacontrolcentermilesawaywillensurethatoncethethiefswitchestheengine,hewillnotbetostartitagain.
Fornow,suchdevicesonlyavailableforfleetsoftrucksandspecialistvehiclesusedonconstructionsites.Butremoteimmobilizationtechnologycouldsoonstarttotrickledowntoordinarycars,andbeavailabletoordinarycarsintheUKtwomonths.
Theideagoeslikethis.Acontrolboxfittedtothecarincorporatesminiaturecellphone,amicroprocessorandmemory,andaGPSsatellitepositioningreceiver.thecarisstolen,acodedcellphonesignalwilltelltheunittoblockthevehicle’senginemanagementsystemandpreventtheenginerestarted.
Thereareevenplansforimmobilizersshutdownvehiclesonthemove,thoughtherearefearsoverthesafetyimplicationsofsuchasystem.
Intheuk,anarrayoftechnicalfixesisalreadymakingharderforcarthieves.Thepatternofvehiclescrimehaschanged,saysmartyn,asecurityresearchorganizationbasedinberkshirethatisfundedinpartthemo
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