编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第PAGE20页共NUMPAGES20页第PAGE\*MERGEFORMAT20页共NUMPAGES\*MERGEFORMAT20页成绩南京工程学院期末考查报告书电气工程专业外语B院（系、部、中心）电力工程学院专业班级学生姓名学号任课教师年月南京Page1.TheProductionofElectricalEnergy（电能生产）1EnglishtextFromreference1Electricityisaformofenergy.Electricityistheflowofelectrons.Allmatterismadeupofatoms.andanatomhasacenter,calledanucleus.Thenucleuscontainspositivelychargedparticlescalledprotonsandunchargedparticlescalledneutrons.Thenucleusofanatomissurroundedbynegativelychargedparticlescalledelectrons.Thenegativechargeofanelectronisequaltothepositivechargeofaproton,andthenumberofelectronsinanatomisusuallyequaltothenumberofprotons.Whenthebalancingforcebetweenprotonsandelectronsisupsetbyanoutsideforce,anatommaygainorloseanelectron.Whenelectronsarelostfromanatom,thefreemovementoftheseelectronsconstitutesanelectriccurrent.Electricityisabasicpartofnatureanditisoneofourmostwidelyusedformsofenergy.Wegetelectricity,whichisasecondaryenergysource,fromtheconversionofothersourcesofenergy,likecoal,naturalgas,oil,nuclearpowerandothernaturalsources,whicharecalledprimarysources.manycitiesandtownswerebuiltalongsidewaterfalls(aprimarysourceofmechanicalenergy)thatturnedwaterwheelstoperformwork.Beforeelectricitygenerationbeganslightlyover100yearsago,houseswerelitwithkerosenelamps,foodwascoolediniceboxes,androomswerewarmedbywood-burningorcoal-burningstoves.BeginningwithBenjaminFranklinsexperimentwithakiteonestormynightinPhiladelphia,thePhiladelphia,theprinciplesofelectricitygraduallybecameunderstood,inthemid-1800.ThomasEdisonchangedeveryone’slife-heperfectedhisinvention-theelectriclightbulb.Priorto1879,electricityhadbeenusedinarclightsforoutdoorlighting.Edison’sinventionusedelectricitytobringindoorlightingtoourhomes.Keywords：protonneutronelectron2中文翻译及分析出自文献1：电是能量的一种形式，是电子流。所有物质都是有原子构成，原子油一个中心，叫做核。核子内有些带正电荷的粒子，称为质子；不带电荷的分子称为中子。原子的核子被带负电荷的粒子包围，称为电子。电子的负电荷与质子的正电荷相等。一个原子力的电子数量通常与质子的数量相等。当外力使质子和电子之间的平衡力遭到破坏时，原子就会增加或减少一个电子，当电子从原子中消失时这种电子