上外自主招生真题Word文件下载.docx
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9.ThespeakerispopularwithMinnesotaUniversitystudentsbecause_____.
10.Theaudienceofthelectureis________.
PartIIListeningComprehension
PartOne
11.WhatistheaimofAmoldSchwarzeneggerwhenhefirstcametoAmerica?
A.Hewantstobeafamousactor.
B.Hewantstobecomeafamousbodybuilder.
C.Hewantstobeapolitician.
D.HewantstobeaMr.Universe.
12.AsaforeignerbackinthedayswhenAmoldSchwarzeneggerwasabodybuilder,whatdidhedotochangehislife?
A.Togotoschool.
B.TolearnEnglish
C.Tomakemoney
D.Towinchampionshiponeafteranother.
13.Whatdowelearnaboutmostteenagepeople’slearninginAustria?
A.Theygotocollegesanduniversities.
B.Theyjointhemilitaryarmy.
C.Theylearntradeswhichcanhelpthemmakealiving.
D.Theydon’tlearnforeignlanguagesinAustria.
14.WhichofthefollowingclassesisNOTincludedinthecounselor’sadvicetoGovernorSchwarzenegger?
A.Economics.B.Businessadministration.C.Math.D.PoliticalScience
15.Lookingbackonthefortunehemadeinthepast,GovernorSchwarzeneggerowedmuchto_____.
A.MakingmoviesB.investingmoneyinrealestate
B.Findingtherightcounselortogiveadvice.D.havingagoodknowledgeofmath.
PartTwo
16.WhatdoesSchwarzeneggerdowiththemoneyhemadefrommakingmovies?
A.Heputitinthepark.B.Hespentit.
C.Hedonatedittoschool.D.Heinvestedit.
17.AccordingtotheSchwarzenegger,itisenoughtogotoschoolwhenyou_____.
A.arenotfeelingexcited.B.startanothernewsemester
Cdon’tknowwhatyouraimisD.don’tliketheclassesoffered.
18.Whatdothestudentshavetodorightnow?
A.ThinkabouttheirfuturelifeB.Havethepatiencetoread.
CAchievetheirgoals.D.Studyhard.
19.Howmanywaysarementionedtobesuccessful?
A.OneB.TwoC.ThreeD.Four
20.Freshmencantakeallthefollowingpiecesofadviceexcept______.
A.RealestateinvestmentB.greatvision
C.pursuitofyourgoalD.besteducation
PartIIIVocabulary
21.Increased______betweendifferentpoliceforceswillimprovetherateofsolvingcrimes.
A.reactionB.retaliationC.interferenceD.interaction
22.Thegeneralartscourseattheuniversity______awiderangeofsubjects.
A.ensuresB.encompassesC.encampsD.encloses
23.Their_____fromthecompetitionwasagreatsurprise.
A.eliminationB.erosionC.extinctionD.emancipation
24.The_____ofpricesmakebusinessmanhesitantaboutinvestinginthisarea.
A.fluctuationsB.declinesC.reductionsD.discounts
25.Theforthcomingfloodcallsforthe_____ofthousandsofpeople.
A.evaluationB.eradicationC.evasionD.evacuation
26.Theshortageoffundsandtheinadequatefacilitieshavebeena____ontheresearcher’sscientificprojects.
A.drainB.dragC.barrierD.source
27.Thescientisthavethreepossible______foritssource.
A.ProspectsB.visionsC.arenasD.scenarios
28.Theaveragedifferenceinheightbetweenmenandwomenisn’tas____inpoorcountriesasitisinrichcountries.
A.ProportionalB.compellingC.pronouncedD.infinite
29.Inmedicineasinlaw,government,andotherlinesofwork,therequirementofhonestyoftenseem____bygreaterneeds.
A.evaluationB.outweighC.necessitatedD.dwarfed
30.Theroadisopennowtofacilitatethetrafficflowfromthecapitaltothecoastalregions.
A.assistB.distributeC.decreaseD.cut
31.ThereformplanofBeijingUniversityhastriggeredanextensivedebateamongscholarsrecently.
A.activatedB.arisenC.conceivedD.ushered
32.AmutationisachangeinDNA,thehereditarymaterialoflife.
A.reactionB.interactionC.alterationD.deviation
33.Thehighcourtupheldthelowercourt’sverdictandtheygotthecompensation.
A.devotionB.decisionC.pledgeD.promise
34.Thesurprisediscoveryoverwhelmedthearchaeologistswithpleasure.
A.dominatedB.descendedC.blendedD.beset
35.Wivessaythatmenareinvariablychildrenatheart.
A.seriouslyB.sometimesC.occasionallyD.always
36.Studiesshowthatsuchverbalsuperioritymaycontinueintoadulthood.
A.intellectualB.mentalC.lexicalD.physical
37.Suchnegativeattitudescanbeharmfultotheimplementationofthelanguageprogram.
A.addictiveB.detrimentalC.vulnerableD.adverse
38.Thereareanumberoffactorswhichtendtohinderimpartialandobjectiveinvestigations.
A.beanobstacletoB.beaunderwayto
C.beastunttoD.beasubsidyto
39.TheoriginalcriticismsaimedatthewholeideaoftheNobelPrizehavefadedaway.
A.implementedB.disappearedC.supplementedD.submitted
PartIVReadingComprehension
(1)
HowDoInternetSearchEnginesWork?
JavedMostafa
Ithasbeenestimatedthattheamountoftextualinformationaccessibleviasearchenginesisatleast40timeslargerthanthedigitizedcontentofallthebooksintheLibraryofCongress,theworld’slargestlibrary.Itisachallengetoprovideaccesstosuchalargevolumeofinformation,yetcurrentsearchenginesdoremarkablywellinsiftingthroughthecontentandidentifyingrelatedlinkstoqueries.
Thereisamultitudeofinformationprovidersontheweb.Theseincludethecommonlyknownandpubliclyavailablesources----sometimesreferredtoasthe“hiddenweb”---ismuchlargerthanthepublicwebintermsoftheamountofinformationtheyprovide.ThislattergroupincludessourcessuchasLexis-Nexis,DialogandIngenta.Theyremainhiddenforvariousreasons:
theymaynotallowotherinformationprovidersaccesstotheircontent;
theymayrequiresubscription;
ortheymaydemandpaymentforaccess.Thisarticleisconcernedwiththeformergroup,thepubliclyavailablewebsearchservices,collectivelyreferredtohereassearchengines.
Searchenginesemployvarioustechniquestospeedupsearches.Someofthecommontechniquesarebrieflydescribedbelow.
PreprocessedData
Onewaysearchenginessavetimeisbypreprocessingthecontentoftheweb.Thatis,whenauserissuesaquery,itisnotsenttomillionsofwebsites.Instead,thematchingtakesplaceagainstpreprocesseddatastoredinonesite.Thepreprocessingiscarriedoutwiththeaidofasoftwareprogramcalledacrawler.Thecrawlerissentoutperiodicallybythedatabasemaintainerstocollectwebpages.Aspecializedcomputerprogramanalyzestheretrievedpagestoextractwords.Thesewordsarethenstoredalongwiththelinkstothecorrespondingpagesinanindexfile.Users’queriesarematchedagainstthisindexfile,notagainstotherwebsites.
SmartRepresentation
Inthistechnique,therepresentationfortheindexiscarefullyselectedwithaneyetowardminimizingsearchtime.Informationscientistshaveproducedanefficientdatastructurecalledatreethatcanguaranteesignificantlyshorteroverallsearchtimecomparedwithsearchesconductedagainstasequentiallist.Toaccommodatesearchesconductedbymanyuserssimultaneouslyandeliminate“waitqueues”,theindexisusuallyduplicatedonmultiplecomputersinthesearchsite.
PrioritizingResults
TheURLsorlinksproducedasaresultofsearchersareusuallynumerous.Butduetoambiguitiesoflanguage(forinstance,“windowblind”versus“blindambition”),theresultinglinkswouldgenerallynotbeequallyrelevanttoauser’squery.Toprovidequickeraccesstothemostrelevantrecords(andtoplacethematornearthetop),thesearchformulaappliesvariousrankingstrategies.Acommonrankingmethodknownasterm-frequency-inversedocument-frequency(TFIDF)considersthedistributionofwordsandtheirfrequenciesandgeneratesnumericalweightswherebywordssignifyingtheirimportanceinindividualdocuments.Itproduceswordweightswherebywordsthatarehighlyfrequent(suchas‘or’,“to”or‘with’)andthatappearinmanydocumentshavesubstantiallylessweightthanwordsthataresemanticallymorerelevantandappearinrelativelyfewdocuments.
Inadditiontotermweighting,webpagescanbeweightedusingotherstrategies.Forexample,linkanalysisconsidersthenatureofeachpageintermsofitsassociationwithotherpages;
namelyifitisanauthority(numberofotherpagesthatpointtoit)orahub(numberofpagesitpointsto).ThishighlysuccessfulGooglesearchengineuseslink-analysistoimprovetherankingofitssearchresults.
ContextandDistance
Inordertoidentifythemostrelevantlinksquickly,certainsearchenginescomparequerytermstocontextualinformationsuchasrecentqueriestheuserssubmitted.Thistechniqueissometimesreferredtoasquerycatching,andinvolvescollectingthewordsfromrecentqueriesandusingthesewordstodisambiguate,refineorexpandthecurrentquery.Anotherwaycertaininformationproviderscanspeedupthedeliveryofsearchresultsisbyusingadistributeddeliverymodel,wherebycopiesoftheindexandrelatedcontentareduplicatedandmovedtomultiplegeographicallocationssoastoshortenthenetworkdistancebetweenusersandcontent.Thecontentprovidersworkwiththird-partyservicestoimplementdistributedcontentdelivery.
Limitations
Therearecostsassociatedwithsomeofthespeed–uptechniquedescr