信息与通信工程专业英语-试卷及答案

研究生课程期末考试试卷《信息与通信工程专业英语》学年度第学期学院： 专业：信息与通信工程姓名： 学号： 装第一题、通信工程专业英语常用词组翻译。（每小题1.5分，共30分）订 .将下列英文词组翻译为汉语。(1) Integratedcircuit线 (2) IndividualelectronsBandwidth

集成电路Conductorlength 导体长度Vector 向量Interface 界面Signalfrequency 信号频率装 (8) Voltage 电压Integralform 积分形式Tensor 张量订题号-一一二二二-三 四 五 六 总得分签名第二题、英文和汉语词组正确搭配。（每小组1分，共10分）（a）Modulationsidebands数据信道f（b）Intermediatefrequency中频b（c）Analogsystem有监督学习eFeedbacknetworkSupervisedlearning载波信道i模拟系统cDatachannelAdaptivelearning反馈网络d数字信号处理h（h）Digitalsignalprocessing调制边带a（i）Negativefeedback自话应学习g（j）Bearerchannel负反馈i得分模拟器传导率模式识别种类数字技术语音识别磁共振虚拟现实放大器信息技术

simulator conductivitypatternrecognitioncategorydigitaltechniquesspeechrecognitionmagneticresonancevirtualreality_amplifierinformationtechnology第三题、将下面几段文字翻译为汉语。（每小题4分，共12分）Wi-Fiisthetrademarkforthepopularwirelesstechnologyusedinhomenetworks,mobilephones,videogamesandotherelectronicdevicesthatrequiresomeformofwirelessnetworkingcapability.Wifi是流行无线技术的标志，用在家庭网络、移动电话、电子游戏等其他需要某种形式的无线网络容量的电子设备上。Thenaturalsensors,likethosefoundinlivingorganisms,usuallyrespondwithsignals,havinganelectro-chemicalcharacter,thatis,theirphysicalnatureisbasedoniontransport,likeinthenervefibers.天然的传感器，像在活体生物中发现的那些传感器，通常以具有电化学特性的信号作为响应，也就是说，它们的物理性质基于离子传输，像在神经纤维一样。Someoftheresultingwaveletcoefficientscorrespondtodetailsinthedataset.Ifthedetailsaresmall,theymightbeomittedwithoutsubstantiallyaffectingthemainfeatureofthedataset.得到某些小波系数对应于数据集中的细节量。如果这些细节量取值小，可以忽略不计，而不会对数据集中的主要特征产生本质影响。线装 第四题、将下面几段文字翻译为英语。（每小题4分，共8分）线输入权重和阈值的加入使得神经元更加灵活与强大。神经元具有通过改变权订 值或者阈值来适应具体情况的能力。Theadditionofinputweightsandthresholdsmakesneuronsmoreflexibleand线 powerful.Neuronshavetheabilitytoadapttospecificsituationsbychangingweightsorthresholds.装 Ifwethinkoflightasanelectromagneticwave,thehistoryofwirelesscommunicationcanbetracedbacktotheoriginoftheuniverse.Sinceancienthumansbeganto订 transmitinformationbyshoutingfromtoptotop,theybegantohopeforconvenientandeffectivecommunicationthroughwireless.第五题、将读下面的2篇阅读，并为每道题选择唯一正确的答案。（每小题2分，共20分）Questions1to5arebasedonthefollowingpassage.America'seducationsystemhasbecomelessaladderofopportunitythanastructuretotransmitinequalityfromonegenerationtothenext.That'swhyschoolreformissocritical.Thisisanissueofequality,opportunityandnationalconscienee.It'snotjustabouteducation,butaboutpovertyandjustice.It'struethatthemainreasoninner-cityschoolsdopoorlyisn'tteachers'unions,bupoverty.Southernstateswithoutstrongteachers',unionshaveschoolsatleastaawfulasthoseinunionstates.SomeChicagoteachersseemtothinkthattheyshouldn'tbeheldaccountableuntilpovertyissolved.Therearestepswecantakethatwouldmakesomedifferenee,andMayorRahmEmanuelistryingsomeothem—yettheunionisresisting.I'dbesympatheticiftheunionfocusedsolelyonhighercompensation.Teachersneedtobemuchbetterpaidtoattractthebestcollegegraduatestothenation'sworstschools.But,instead,theChicagounionseemstobeusingitspoliticalcapitalprimarilytoprotectweakperformers.There'ssolidevideneethattherearehugedifferencesintheeffectivenessofteachers.ThegoldstandardstudybyHarvardandColumbiaUniversityscholarsfoundthatninhigh-povertyschools,teachersconsistentlyhadahugepositiveornegativeimpact.Getabottom1%teacher,andtheeffectisthesameasifachildmisses40%oftheschoolyear.Getateacherfromthetop20%,andit'sasifachildhasgonetoschoolforanextramonthortwo.Thestudyfoundthatstrongteachersinthefourththrougheighthgradesraisetheskillsoftheirstudentsinwaysthatwouldlastfordecades.Justhavingastrongteacherforoneelementaryyearleftpupilsabitlesslikelytobecomemothersasteenagers,abitmorelikelytogotocollegeandearningmoremoneyatage28.Howdoesonefigureoutwhoisaweakteacher?Yes,that'sachallenge.Butresearchersareimprovingsystemstomeasureateacher'sperformaneethroughouttheyear,and,withthreeyearsofdata,ifsusuallypossibletotellwhichteachersarefailing.Unfortunately,theunioninChicagoisinsistingthatteacherswhoarelaidoftenforbeingineffective—shouldgetpriorityinnewhiring.That'saninsuittostudents.Teachingissoimportantthatitshouldbelikeotherprofessions,withhighpayandgoodworkingconditionsbutfewjobprotectionsforbottomperformers.Thisisn'tabattlebetweengarmentworkersandgreedybosses.ThecentralfiguresintheChicagoschoolsstrikeareneitherstrikersnormanagersbut350,000children.Protectingtheuniondemandsacrificesthosestudents,ineffectturningblindeyetotheinjusticeintheeducationsystem.WhatdowelearnaboutAmerica'seducationsystem?B)Itprovidesaladderofopportunityforthewealthy.Itcontributeslittletotheeliminationofinequality.Ithasremainedbasicallyunchangedforgenerations.Ithasbroughtupgenerationsofresponsiblecitizens.Whatischieflyresponsiblefortheundesirableperformaneeofinnschools?装 (B)A)Unqualifiedteachers. C)Unfavorablelearningenvironment.订 B)Lackoffinancialresources.D)Subconsciousracialdiscrimination.WhatdoestheauthorthinktheunionshoulddotowinpopularsupportsC)线A)Assistthecitygovernmentinreformingschools.C)Demandhigherpayforteachers.B)Giveconstructiveadvicetoinner-cityschools.D)Helpteachersimproveteaching.WhatisthefindingofthegoldstandardstudybyHarvardandColumbiaUniversity装 scholars?(D)Manyinner-cityschoolteachersarenotequaltotheirjobs.订Alargeproportionofinner-citychildrenoftenmissclasses.Manystudentsaredissatisfiedwiththeirteachers.线Studentperformaneehasalottodowithteachers.WhydoestheauthorsaytheChicagounionsdemandisaninsulttostudent$A)Itprotectsincompetentteachersattheexpenseofstudents.Itunderestimatesstudents,abilitytotellgoodteachersfrompoorones.Itmakesstudentsfeelthattheyarediscriminatedagainstinmanyways.装Ittotallyignoresstudents,initiativeinthelearningprocess.订Questions6to10arebasedonthefollowingpassage.Airpollutionisdeterioratinginmanyplacesaroundtheworld.ThefactthaipublicparksincitiesbecomecrowdedassoonasthesunshinesprovesthatAirpollutionisdeterioratinginmanyplacesaroundtheworld.Thefactthaipublicparksincitiesbecomecrowdedassoonasthesunshinesprovesthatltobreatheingreen,openspaces.Theydonotallknowwhattheyareseektheyflockthere,nevertheless.And,inthesesurroundings,theyaregenbtllpeacefulandpeaceable.Itisraretoseepeoplefightinginagarden.srrleunfoldsfirst,notataneconomicorsociallevel,butovertheappropriationofair,essentialtolifeitself.lesIfhumanbeingscanbreatheandshareair,theydon'tneedtostrugglewithoneanother.Unfortunately,inourwesterntradition,neithermaterialistnoridealisltheoreticiansgiveenoughconsiderationtothisbasicconditionforlife.Asforpoliticians,despiteproposingcurbsonenvironmentalpollution,theyhavenotcalledforittobemadeacrime.Wealthycountriesareevenallowedtopolluteiftheypayforit.Butisourlifeworthanythingotherthanmoney?Theplantworldshowsusncewhatfaithfulnesstolifeconsistsof.Italsohelpsustoanewbeginningurgingustocareforourbreath,notonlyatavitalbutalsoataspirituallevel.Terdependencetowhichwemustpaytheclosestattentionisthatwhichexists1betweenourselvesandtheplantworld.Oftendescribedas"thelungsofthepla tl

woodsthatcovertheearthofferusthegiftofbreathableairbyreleasing ntteircapacitytorenewtheairpollutedbyindustryhaslongreacheditslimit.Ifwelacktheairnecessaryforahealthylife,itisbecausewehavefilleditwithchemicalsandundercuttheabilityofplantstoregenerateit.Asweknow,rapdeforestationcombinedwiththemassiveburningoffossilfuelsisanexplosiverecipeforanirreversibledisaster. 1Thefightovertheappropriationofresourceswillleadtheentireplanettohelluniesshumanslearntsharelife,bothwitheachotherandwithplants.Thistaskissimultaneouslyethicalandpoliticalbecausecanbedischargedonlywheneachtakesituponherselforhimselfandonlywhenitisaccomplishedtogetherwithothers.Thelessontaughtbyplantsisthatsharinglifeexpandsandenhancesthespherectheliving,whiledividinglifeintoso-callednaturalorhumanresourcesdiminishesit.Wemustcometviewtheair,theplantsandourselvesasthecontributorstothepreservationoflifeandgrowth,ratherthanawebofquantifiableobjectsorproductivepotentialitiesatourdisposal.Perhapsthenwewouldfinallybegintolive,ratherthanbeingconcernedwithbaresurvival.Whatdoestheauthorassumemightbetheprimaryreasonthatpeoplewouldstrugglewitheachother(A)Togettheirshareofcleanair.Topursueacomfortablelife.Togainahighersocialstatus.Toseekeconomicbenefits.Whatdoestheauthoraccusewesternpoliticiansof?D)Deprivingcommonpeopleoftherighttoclea