2005年考研英语真题和答案

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1、跨校考研全程辅导专家2005年考研英语真题和答案SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmark[A],[B],[C]or[D]onANSWERSHEET1(10points)Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensitivesmellerscomparedwithanimals,thisislargely

2、because,animals,westandupright.Thismeansthatournosesaretoperceivingthosesmellswhichfloatthroughtheair,themajorityofsmellswhichsticktosurfaces.Infact,,weareextremelysensitivetosmells,wedonotgenerallyrealizeit.Ournosesarecapableofhumansmellsevenwhenthesearetofarbelowonepar

3、tinonemillion.Strangely,somepeoplefindthattheycansmellonetypeofflowerbutnotanother,othersaresensitivetothesmellsofbothflowers.Thismaybebecausesomepeopledonothavethegenesnecessarytogeneratesmellreceptorsinthenose.Thesereceptorsarethecellswhichsensesmellsandsendtothebrain.

4、However,ithasbeenfoundthatevenpeopleinsensitivetoacertainsmellcansuddenlybecomesensitivetoitwhentoitoftenenough.Theexplanationforinsensitivitytosmellseemstobethatthebrainfindsittokeepallsmellreceptorsworkingallthetimebutcannewreceptorsifnecessary.Thismayexplainwhyweareno

5、tusuallysensitivetoourownsmells—wesimplydonotneedtobe.Wearenotoftheusualsmellofourownhouse,butwenewsmellswhenwevisitsomeoneelse’s.Thebrainfindsitbesttokeepsmellreceptorsforunfamiliarandemergencysignalsthesmellofsmoke,whichmightindicatethedangeroffire.1.[A]although[B]as[C

6、]but[D]while2.[A]above[B]unlike[C]excluding[D]besides3.[A]limited[B]committed[C]dedicated[D]confined4.[A]catching[B]ignoring[C]missing[D]跨校考研全程辅导专家tracking5.[A]anyway[B]though[C]instead[D]therefore6.[A]evenif[B]ifonly[C]onlyif[D]asif7.[A]distinguishing[B]discovering[C]de

7、termining[D]detecting8.[A]diluted[B]dissolved[C]dispersed[D]diffused9.[A]when[B]since[C]for[D]whereas10.[A]unusual[B]particular[C]unique[D]typical11.[A]signs[B]stimuli[C]messages[D]impulses12.[A]atfirst[B]atall[C]atlarge[D]attimes13.[A]subjected[B]left[C]drawn[D]exposed1

8、4.[A]ineffective[B]incompetent[C]inefficient[D]insufficient15.[A]introduce[B]summon[C]trigger[D]跨校考研全程辅