年考研英语真题和答案

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1、精品文档2009年考研英语真题和答案SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDonANSWERSHEET1.(10points)Researchonanimalintelligencealwaysmakesmewonderjusthowsmarthumansare.1thefruit-flyexperimentsdescribedinCa

2、rlZimmer’spieceintheScienceTimesonTuesday.Fruitflieswhoweretaughttobesmarterthantheaveragefruitfly2toliveshorterlives.Thissuggeststhat3bulbsburnlonger,thatthereisan4innotbeingtooterrificallybright.Intelligence,it5out,isahigh-pricedoption.Ittakesmoreupkeep,

3、burnsmorefuelandisslow6thestartinglinebecauseitdependsonlearning—agradual7—insteadofinstinct.Plentyofotherspeciesareabletolearn,andoneofthethingsthey’veapparentlylearnediswhento8.Isthereanadaptivevalueto9intelligence?That’sthequestionbehindthisnewresearch.

4、Ilikeit.Insteadofcastingawistfulglance10atallthespecieswe’veleftinthedustI.Q.-wise,itimplicitlyaskswhatthereal11ofourownintelligencemightbe.Thisis12themindofeveryanimalI’veevermet.Researchonanimalintelligencealsomakesmewonderwhatexperimentsanimalswould13on

5、humansiftheyhadthechance.Everycatwithanowner,14,isrunningasmall-scalestudyinoperantconditioning.webelievethat15animalsranthelabs,theywouldtestusto16thelimitsofourpatience,ourfaithfulness,ourmemoryforterrain.Theywouldtrytodecidewhatintelligenceinhumansisrea

6、lly17,notmerelyhowmuchofitthereis.18,theywouldhopetostudya19question:Arehumansactuallyawareoftheworldtheylivein?20theresultsareinconclusive.1.[A]Suppose[B]Consider[C]Observe[D]Imagine2.[A]tended[B]feared[C]happened[D]threatened3.[A]thinner[B]stabler[C]ligh

7、ter[D]dimmer4.[A]tendency[B]advantage[C]inclination[D]priority5.[A]insistson[B]sumsup[C]turnsout[D]putsforward6.[A]off[B]behind[C]over[D]along7.[A]incredible[B]spontaneous[C]inevitable[D]gradual8.[A]fight[B]doubt[C]stop[D]think9.[A]invisible[B]limited[C]in

8、definite[D]different10.[A]upward[B]forward[C]afterward[D]backward11.[A]features[B]influences[C]results[D]costs12.[A]outside[B]on[C]by[D]across13.[A]deliver[B]carry[C]perform[D]apply14.[A]bychance[B]incontrast