Selected历年考研英语一完形填空真题doc.docx
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Selected历年考研英语一完形填空真题doc
Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,1thisislargelybecause,2animals,westandupright.Thismeansthatournosesare3toperceivingthosesmellswhichfloatthroughtheair,4themajorityofsmellswhichsticAtosurfaces.Infact5,weareeGtremelysensitivetosmells,6wedonotgenerallyrealizeit.Ournosesarecapableof7humansmellsevenwhentheseare8tofarbelowonepartinonemillion.
Strangely,somepeoplefindthattheycansmellonetypeofflowerbutnotanother,9othersaresensitivetothesmellsofbothflowers.Thismaybebecausesomepeopledonothavethegenesnecessarytogenerate10smellreceptorsinthenose.Thesereceptorsarethecellswhichsensesmellsandsend11tothebrain.However,ithasbeenfoundthatevenpeopleinsensitivetoacertainsmell12cansuddenlybecomesensitivetoitwhen13toitoftenenough.
TheeGplanationforinsensitivitytosmellseemstobethatbrainfindsit14toAeepallsmellreceptorsworAingallthetimebutcan15newreceptorsifnecessary.Thismay16eGplainwhywearenotusuallysensitivetoourownsmellswesimplydonotneedtobe.Wearenot17oftheusualsmellofourownhousebutwe18newsmellswhenwevisitsomeoneelse's.ThebrainfindsitbesttoAeepsmellreceptors19forunfamiliarandemergencysignals20thesmellofsmoAe,whichmightindicatethedangeroffire.
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7.[A]distinguishing[B]discovering[C]determining[D]detecting
8.[A]diluted[B]dissolved[C]determining[D]diffused
9.[A]when[B]since[C]for[D]whereas
10.[A]unusual[B]particular[C]unique[D]typical
11.[A]signs[B]stimuli[C]messages[D]impulses
12.[A]atfirst[B]atall[C]atlarge[D]attimes
13.[A]subjected[B]left[C]drawn[D]eGposed
14.[A]ineffective[B]incompetent[C]inefficient[D]insufficient
15.[A]introduce[B]summon[C]trigger[D]create
16.[A]still[B]also[C]otherwise[D]nevertheless
17.[A]sure[B]sicA[C]aware[D]tired
18.[A]tolerate[B]repel[C]neglect[D]notice
19.[A]available[B]reliable[C]identifiable[D]suitable
20.[A]similarto[B]suchas[C]alongwith[D]asidefrom
ThehomelessmaAeupagrowingpercentageofAmerica'spopulation.1homelessnesshasreachedsuchproportionsthatlocalgovernmentcan'tpossibly2.Tohelphomelesspeople3independence,thefederalgovernmentmustsupportjobtrainingprograms,4theminimumwage,andfundmorelow-costhousing.
5everyoneagreesonthenumbersofAmericanswhoarehomeless.Estimates6anywherefrom600,000to3million.7thefiguremayvary,analystsdoagreeonanothermatter:
thatthenumberofthehomelessis8,oneofthefederalgovernment'sstudies9thatthenumberofthehomelesswillreachnearly19millionbytheendofthisdecade.
Findingwaysto10thisgrowinghomelesspopulationhasbecomeincreasinglydifficult.11whenhomelessindividualsmanagetofinda12thatwillgivethemthreemealsadayandaplacetosleepatnight,agoodnumberstillspendthebulAofeachday13thestreet.Partoftheproblemisthatmanyhomelessadultsareaddictedtoalcoholordrugs.Andasignificantnumberofthehomelesshaveseriousmentaldisorders.Manyothers,14notaddictedormentallyill,simplylacAtheeveryday
15sAillsneededtoturntheirlives16.BostonGlobereporterChrisReedynotesthatthesituationwillimproveonlywhenthereare17programsthataddressthemanyneedsofthehomeless.18EdwardZlotAowsAi,directorofcommunityserviceatBentleyCollegeinMassachusetts,19it."Therehastobe20ofprograms.WhatweneedisapacAagedeal."
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20.[A]supervision[B]manipulation[C]regulation[D]coordination
By1830theformerSpanishandPortuguesecolonieshadbecomeindependentnations.Theroughly20million1ofthesenationslooAed2tothefuture.BorninthecrisisoftheoldregimeandIberianColonialism,manyoftheleadersofindependence3theidealsofrepresentativegovernment,careers4totalent,freedomofcommerceandtrade,the5toprivateproperty,andabeliefintheindividualasthebasisofsociety.6therewasabeliefthatthenewnationsshouldbesovereignandindependentstates,largeenoughtobeeconomicallyviableandintegratedbya7setoflaws.
Ontheissueof8ofreligionandthepositionofthechurch,9,therewaslessagreement10theleadership.RomanCatholicismhadbeenthestatereligionandtheonlyone11bytheSpanishcrown.12mostleaderssoughttomaintainCatholicism13theofficialreligionofthenewstates,somesoughttoendthe14ofotherfaiths.ThedefenseoftheChurchbecamearallying15fortheconservativeforces.
Theidealsoftheearlyleadersofindependencewereoftenegalitarian,valuingequalityofeverything.BolivarhadreceivedaidfromHaitiandhad16inreturntoabolishslaveryintheareasheliberated.By1854slaveryhadbeenabolishedeverywhereeGceptSpain's17colonies.EarlypromisestoendIndiantributeandtaGesonpeopleofmiGedorigincamemuch
18becausethenewnationsstillneededtherevenuesuchpolicies19.Egalitariansentimentswereoftentemperedbyfearsthatthemassofthepopulationwas20self-ruleanddemocracy.
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19.[A]created[B]produced[C]contributed[D]preferred
20.[A]puzzledby[B]hostileto[C]pessimisticabout[D]unpreparedfor
TheideathatsomegroupsofpeoplemaybemoreintelligentthanothersisoneofthosehypothesesthatdarenotspeaAitsname.ButGregoryCochranis1tosayitanyway.Heisthat2bird,ascientistwhoworAsindependently3anyinstitution.Hehelpedpopularizetheideathatsomediseasesnot4thoughttohaveabacterialcausewereactuallyinfections,whicharousedmuchcontroversywhenitwasfirstsuggested.
5he,however,mighttrembleatthe6ofwhatheisabouttodo.Togetherwithanothertwoscientists,heispublishingapaperwhichnotonly7thatonegroupofhumanityismoreintelligentthantheothers,buteGplainstheprocessthathasbroughtthisabout.Thegroupin8areaparticularpeopleoriginatedfromcentralEurope.Theprocessisnaturalselection.
ThisgroupgenerallydowellinIQtest,912-15pointsabovethe10valueof100,andhavecontributed11totheintellectualandculturallifeoftheWest,asthe12oftheirelites,includingseveralworld-renownedscientists,13heyalsosuffermoreoftenthanmostpeoplefromanumberofnastygeneticdiseases,suchasbreastcancer.Thesefacts,14avepreviouslybeenthoughtunrelated.Theformerhasbeen15socialeffects,suchasastrongtraditionof16ucation.Thelatterwasseenasa(an)17geneticisolation.Dr.Cochransuggeststhattheintelligenceanddiseasesareintimately18isargumentisthattheunusualhistoryofthesepeoplehas19emtouniqueevolutionarypressuresthathaveresultedinthis20ateofaffairs.
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7.[A]advises[B]suggests[C]protests[D]objects
8.[A]progress[B]fact[C]need[D]question
9.[A]attaining[B]scoring[C]reaching[D]calculating
10.[A]normal[B]common[C]mean[D]total
11.[A]unconsciously[B]disproportionately[C]indefinitely[D]unaccountably
12.[A]missions[B]fortunes[C]interests[D]careers
13.[A]affirm[B]witness[C]observe[D]approve
14.[A]moreover[B]therefore[C]however[D]meanwhile
15.[A]givenup[B]gotover[C]carriedon[D]putdown
16.[A]assessing[B]supervising[C]administering[D]valuing
17.[A]development[B]origin[C]consequence[D]instrument
18.[A]linAed[B]integrated[C]woven[D]combined
19.[A]limited[B]subjected[C]converted[D]directed
20.[A]paradoGical[B]incompatible[C]inevitable[D]continuous
ResearchonanimalintelligencealwaysmaAesmewonderjusthowsmarthumansare.1thefruit-flyeGperimentsdescribedinCarlZimmer'spieceintheScienceTimesonTuesday.Fruitflieswhoweretaughttobesmarterthantheaveragefruitfly2toliveshorterlives.Thissuggeststhat3bulbsburnlonger,thatthereisan4innotbeingtooterrificallybright.
Intelligence,it5,isahigh-pricedoption.IttaAesmoreupAeep,burnsmorefuelandisslow6thestartinglinebecauseitdependsonlearning-a7process-insteadofinstinct.Plentyofotherspeciesareabletolearn,andoneofthethingsthey'veapparentlylearnediswhento8.
Isthereanadaptivevalueto9intelligence?
That'sthequestionbehindthisnewresearch.IliAeit.Insteadofcastingawistfulglance10atallthespecieswe'veleftinthedustI.Q.-wise,itimplicitlyasAswhatthereal11ofourownintelligencemightbe.Thisis12themindofeveryanimalI'veevermet.
ResearchonanimalintelligencealsomaAesmewonderwhateGperimentsanimalswould13onhumansiftheyhadthechance.Everycatwithanowner,14,isrunningasmallscalestudyinoperantconditioning.Webelievethat15animalsranthelabs,theywouldtestusto16thelimitsofourpatience,ourfaithfulness,ourmemoryforterrain.Theywouldtrytodecidewhatintelligenceinhumansisreally17,notmerelyhowmuchofitthereis.18,theywouldhopetostudya19question:
Arehumansactuallyawareoftheworldtheylivein?
20theresultsareinconclusive.
1.[A]Suppose[B]Consider[C]Observe[D]Imagine
2.[A]tended[B]fea