2005考研英语真题及答案

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1、成龙成凤网http://www.clcf.com.cn/国内首家专门教授快速、轻松、高效记忆英语单词的专业网站QQ：2855173237075266072005年考研英语试题SectionⅠUseofEnglish　　Directions:　　Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDonANSWERSHEET1(10points)　　Thehumannoseisanunderratedtool.Humansareoftenthoughttobeinsensiti

2、vesmellerscomparedwithanimals,1thisislargelybecause,2animals,westandupright.Thismeansthatournosesare3toperceivingthosesmellswhichfloatthroughtheair,4themajorityofsmellswhichsticktosurfaces.Infact　　5,weareextremelysensitivetosmells,6wedonotgenerallyrealizeit.Ournosesarecapableof7humansmell

3、sevenwhentheseare8tofarbelowonepartinonemillion.　　Strangely,somepeoplefindthattheycansmellonetypeofflowerbutnotanother,9othersaresensitivetothesmellsofbothflowers.Thismaybebecausesomepeopledonothavethegenesnecessarytogenerate10smellreceptorsinthenose.Thesereceptorsarethecellswhichsensesme

4、llsandsend11tothebrain.However,ithasbeenfoundthatevenpeopleinsensitivetoacertainsmell12cansuddenlybecomesensitivetoitwhen13toitoftenenough.　　Theexplanationforinsensitivitytosmellseemstobethatbrainfindsit　　14tokeepallsmellreceptorsworkingallthetimebutcan15newreceptorsifnecessary.Thismay16e

5、xplainwhywearenotusuallysensitivetoourownsmellswesimplydonotneedtobe.Wearenot17oftheusualsmellofourownhousebutwe18newsmellswhenwevisitsomeoneelse's.Thebrainfindsitbesttokeepsmellreceptors19forunfamiliarandemergencysignals20thesmellofsmoke,whichmightindicatethedangeroffire.　　1.［A］although［

6、B］as［C］but［D］while成龙成凤网http://www.clcf.com.cn/国内首家专门教授快速、轻松、高效记忆英语单词的专业网站QQ：285517323707526607　　2.［A］above［B］unlike［C］excluding［D］besides　　3.［A］limited［B］committed［C］dedicated［D］confined　　4.［A］catching［B］ignoring［C］missing［D］tracking　　5.［A］anyway［B］though［C］instead［D］therefore　　6.［A］eveni

7、f［B］ifonly［C］onlyif［D］asif　　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