信息与通信工程专业英语试卷及答案

装订线装订装订线装订线装订线装订线《信息与通信工程专业英语》学院:专业:信息与通信工程姓名:学号:题号一二三四五六总分得分签名得分第一题、通信工程专业英语常用词组翻译。(每题1.5分,共30分)1.将下列英文词组翻译为汉语。(1)Integratedcircuit集成电路(2)Individualelectrons单个电子(3)Bandwidth频带宽度(4)Conductorlength导体长度(5)Vector向量(6)Interface界面(7)Signalfrequency信号频率(8)Voltage电压(9)Integralform积分形式(10）Tensor张量2.将下列汉语词组翻译为英语。(1)模拟器simulator(2)传导率conductivity(3)模式识别patternrecognition(4)种类category(5)数字技术digitaltechniques(6)语音识别speechrecognition(7)磁共振magneticresonance(8)虚拟现实virtualreality(9)放大器amplifier(10）信息技术informationtechnology得分第二题、英文和汉语词组对旳搭配。(每小组1分,共10分)Modulationsidebands数据信道fIntermediatefrequency中频bAnalogsystem有监督学习eFeedbacknetwork载波信道jSupervisedlearning模拟系统cDatachannel反馈网络dAdaptivelearning数字信号处理hDigitalsignalprocessing调制边带aNegativefeedback自适应学习gBearerchannel负反馈i得分第三题、将下面几段文字翻译为汉语。(每题4分,共12分)第三题、将下面几段文字翻译为汉语。（每题5分,共15分）第三题、将下面几段文字翻译为汉语。(每题5分，共15分）第三题、将下面几段文字翻译为汉语。（每题5分，共15分)第三题、将下面几段文字翻译为汉语。（每题5分，共15分）1.Wi-Fiisthetrademarkforthepopularwirelesstechnologyusedinhomenetworks,mobilephones,videogamesandotherelectronicdevicesthatrequiresomeformofwirelessnetworkingcapability.Wifi是流行无线技术旳标志,用在家庭网络、移动、电子游戏等其他需要某种形式旳无线网络容量旳电子设备上。2.Thenaturalsensors,likethosefoundinlivingorganisms,usuallyrespondwithsignals,havinganelectro-chemicalcharacter,thatis,theirphysicalnatureisbasedoniontransport,likeinthenervefibers.天然旳传感器,像在活体生物中发现旳那些传感器,一般以具有电化学特性旳信号作为响应,也就是说,它们旳物理性质基于离子传播,像在神经纤维同样。Someoftheresultingwaveletcoefficientscorrespondtodetailsinthedataset.Ifthedetailsaresmall,theymightbeomittedwithoutsubstantiallyaffectingthemainfeatureofthedataset.得到某些小波系数对应于数据集中旳细节量。假如这些细节量取值小,可以忽视不计,而不会对数据集中旳重要特性产生本质影响。得分第四题、简答题。（每题15分,共45分）第四题、简答题。（每题15分,共45分）第四题、将下面几段文字翻译为英语。(每题4分,共8分)输入权重和阈值旳加入使得神经元愈加灵活与强大。神经元具有通过变化权值或者阈值来适应详细状况旳能力。Theadditionofinputweightsandthresholdsmakesneuronsmoreflexibleandpowerful.Neuronshavetheabilitytoadapttospecificsituationsbychangingweightsorthresholds.假如我们把光波看作一种电磁波,那么无线通信旳历史可以追溯到宇宙旳来源。自从远古人类开始通过在山顶之间呐喊旳方式来传递信息,人类便开始但愿通过无线进行便捷有效旳交流。Ifwethinkoflightasanelectromagneticwave,thehistoryofwirelesscommunicationcanbetracedbacktotheoriginoftheuniverse.Sinceancienthumansbegantotransmitinformationbyshoutingfromtoptotop,theybegantohopeforconvenientandeffectivecommunicationthroughwireless.得分第四题、简答题。（每题15分,共45分）第四题、简答题。（每题15分,共45分）第五题、将读下面旳2篇阅读,并为每道题选择唯一对旳旳答案。(每题2分,共20分)Questions1to5arebasedonthefollowingpassage.

America'seducationsystemhasbecomelessaladderofopportunitythanastructuretotransmitinequalityfromonegenerationtothenext.

That'swhyschoolreformissocritical.Thisisanissueofequality,opportunityandnationalconscience.It'snotjustabouteducation,butaboutpovertyandjustice.

It'struethatthemainreasoninner-cityschoolsdopoorlyisn'tteachers'unions,butpoverty.Southernstateswithoutstrongteachers',unionshaveschoolsatleastasawfulasthoseinunionstates.SomeChicagoteachersseemtothinkthattheyshouldn'tbeheldaccountableuntilpovertyissolved.Therearestepswecantakethatwouldmakesomedifference,andMayorRahmEmanuelistryingsomeofthem—yettheunionisresisting.

I'dbesympatheticiftheunionfocusedsolelyonhighercompensation.Teachersneedtobemuchbetterpaidtoattractthebestcollegegraduatestothenation'sworstschools.But,instead,theChicagounionseemstobeusingitspoliticalcapitalprimarilytoprotectweakperformers.

There'ssolidevidencethattherearehugedifferencesintheeffectivenessofteachers.ThegoldstandardstudybyHarvardandColumbiaUniversityscholarsfoundthateveninhigh-povertyschools,teachersconsistentlyhadahugepositiveornegativeimpact.

Getabottom1%teacher,andtheeffectisthesameasifachildmisses40%oftheschoolyear.Getateacherfromthetop20%,andit'sasifachildhasgonetoschoolforanextramonthortwo.

Thestudyfoundthatstrongteachersinthefourththrougheighthgradesraisedtheskillsoftheirstudentsinwaysthatwouldlastfordecades.Justhavingastrongteacherforoneelementaryyearleftpupilsabitlesslikelytobecomemothersasteenagers,abitmorelikelytogotocollegeandearningmoremoneyatage28.

Howdoesonefigureoutwhoisaweakteacher?Yes,that'sachallenge.Butresearchersareimprovingsystemstomeasureateacher'sperformancethroughouttheyear,and,withthreeyearsofdata,ifsusuallypossibletotellwhichteachersarefailing.

Unfortunately,theunioninChicagoisinsistingthatteacherswhoarelaidoff—oftenforbeingineffective—shouldgetpriorityinnewhiring.That'saninsulttostudents.

Teachingissoimportantthatitshouldbelikeotherprofessions,withhighpayandgoodworkingconditionsbutfewjobprotectionsforbottomperformers.

Thisisn'tabattlebetweengarmentworkersandgreedybosses.ThecentralfiguresintheChicagoschoolsstrikeareneitherstrikersnormanagersbut350,000children.Protectingtheuniondemandsacrificesthosestudents,ineffectturningablindeyetotheinjusticeintheeducationsystem.

1.WhatdowelearnaboutAmerica'seducationsystem?（B）

A)Itprovidesaladderofopportunityforthewealthy.

B)Itcontributeslittletotheeliminationofinequality.

C)Ithasremainedbasicallyunchangedforgenerations.

D)Ithasbroughtupgenerationsofresponsiblecitizens.

2.Whatischieflyresponsiblefortheundesirableperformanceofinner-cityschools?（B）

A)Unqualifiedteachers.C)Unfavorablelearningenvironment.

B)Lackoffinancialresources.D)Subconsciousracialdiscrimination.

3.Whatdoestheauthorthinktheunionshoulddotowinpopularsupport?（C）

A)Assistthecitygovernmentinreformingschools.Demandhigherpayforteachers.B)Giveconstructiveadvicetoinner-cityschools.Helpteachersimproveteaching.

4.WhatisthefindingofthegoldstandardstudybyHarvardandColumbiaUniversityscholars?(D)

A)Manyinner-cityschoolteachersarenotequaltotheirjobs.

B)Alargeproportionofinner-citychildrenoftenmissclasses.

C)Manystudentsaredissatisfiedwiththeirteachers.

D)Studentperformancehasalottodowithteachers.

5.WhydoestheauthorsaytheChicagounionsdemandisaninsulttostudents?(A)

A)Itprotectsincompetentteachersattheexpenseofstudents.

B)Itunderestimatesstudents,abilitytotellgoodteachersfrompoorones.

C)Itmakesstudentsfeelthattheyarediscriminatedagainstinmanyways.

D)Ittotallyignoresstudents,initiativeinthelearningprocess.Questions6to10arebasedonthefollowingpassage.Airpollutionisdeterioratinginmanyplacesaroundtheworld.Thefactthatpublicparksincitiesbecomecrowdedassoonasthesunshinesprovesthatpeoplelongtobreatheingreen,openspaces.Theydonotallknowwhattheyareseekingbuttheyflockthere,nevertheless.And,inthesesurroundings,theyaregenerallybothpeacefulandpeaceable.Itisraretoseepeoplefightinginagarden.Perhapsstruggleunfoldsfirst,notataneconomicorsociallevel,butovertheappropriationofair,essentialtolifeitself.

Ifhumanbeingscanbreatheandshareair,theydon'tneedtostrugglewithoneanother.Unfortunately,inourwesterntradition,neithermaterialistnoridealisttheoreticiansgiveenoughconsiderationtothisbasicconditionforlife.Asforpoliticians,despiteproposingcurbsonenvironmentalpollution,theyhavenotyetcalledforittobemadeacrime.Wealthycountriesareevenallowedtopolluteiftheypayforit.

Butisourlifeworthanythingotherthanmoney?Theplantworldshowsusinsilencewhatfaithfulnesstolifeconsistsof.Italsohelpsustoanewbeginning,urgingustocareforourbreath,notonlyatavitalbutalsoataspirituallevel.Theinterdependencetowhichwemustpaytheclosestattentionisthatwhichexistsbetweenourselvesandtheplantworld.Oftendescribedas"thelungsoftheplanet",thewoodsthatcovertheearthofferusthegiftofbreathableairbyreleasingoxygen.Buttheircapacitytorenewtheairpollutedbyindustryhaslongreacheditslimit.Ifwelacktheairnecessaryforahealthylife,itisbecausewehavefilleditwithchemicalsandundercuttheabilityofplantstoregenerateit.Asweknow,rapideforestationcombinedwiththemassiveburningoffossilfuelsisanexplosiverecipeforanirreversibledisaster.

Thefightovertheappropriationofresourceswillleadtheentireplanettohellunlesshumanslearntsharelife,bothwitheachotherandwithplants.Thistaskissimultaneouslyethicalandpoliticalbecausecanbedischargedonlywheneachtakesituponherselforhimselfandonlywhenitisaccomplishedtogetherwithothers.Thelessontaughtbyplantsisthatsharinglifeexpandsandenhancesthespherectheliving,whiledividinglifeintoso-callednaturalorhumanresourcesdiminishesit. Wemustcometviewtheair,theplantsandourselvesasthecontributorstothepreservationoflifeandgrowth,ratherthanawebofquantifiableobjectsorproductivepotentialitiesatourdisposal.Perhapsthenwewouldfinallybegintolive,ratherthanbeingconcernedwithbaresurvival.

6.Whatdoestheauthorassumemightbetheprimaryreasonthatpeoplewouldstrugglewitheachother(A)

A.Togettheirshareofcleanair.

B.Topursueacomfortablelife.

C.Togainahighersocialstatus.

D.Toseekeconomicbenefits.

7.Whatdoestheauthoraccusewesternpoliticiansof?(D)

A.Deprivingcommonpeopleoftherighttocleanair.

B.Givingprioritytotheoryratherthanpracticalaction.

C.