电子课件-《电工英语(第三版)》-A01-3750-电工英语电子课件unit2

ELECTRICALENGLISH英语电工ELECTRICALENGLISH英语电工Unit1JobandWorkplaceUnit2ElectricalToolsandMaterialsUnit3HouseWiringUnit4MeasuringInstrumentContents

Unit5MotorsandTransformersUnit1JobandWorkplaceUnit2Lesson4WhatAreinYourTool-kit?Lesson5WiresandCablesLesson6JoiningWiresUnit2ElectricalToolsandMaterialsLesson4WhatAreinYourToolLesson4WhatAreinYourTool-kit?GoalIdentifythebasictoolsusedintheelectricaltrades.LookandStudyDialogueReadingFurtherStudyWordsandPhrasesLesson4WhatAreinYourToolLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesA.Lookupthephrasesbelowinadictionary.FillintheblankswithbothChineseandEnglishanswersaccordingtothepictures.constructionsitebricklayertrunkingtool-kit1._____________ 2._____________3._____________ 4._____________tool-kit工具箱constructionsite建筑工地bricklayer砖瓦匠trunking线槽LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesB.Lookupthephrasesbelowinadictionary.FillintheblankswithbothChineseandEnglishanswersaccordingtothepicturesoftoolelectricdrillhammerdrillpliersscrewdriver1._____________ 2._____________3._____________ 4._____________electricdrill电钻hammerdrill冲击钻screwdriver螺丝刀pliers钳子LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesTomSmith（A）是新参加工作的建筑电工，他在工地办公室内向工程项目经理（B）请教工作上的问题。A:Goodmorning,madam.B:Goodmorning,youmustbeTom.A:Yes,TomSmith.B:Welcometojoinourcompany.A:SowherecanIstartmywork?B:Well,yourjobistoinstallandwiretheelectricalsystemsinpartiallybuiltbuilding,followingwiringdiagrams.Youalsoinstallelectronicequipmentandsignalcommunicationsystems.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesTomSmith（A）是新参加工作的建筑电工，他在工地办公室内向工程项目经理（B）请教工作上的问题。A:Whataretheelectricalpowertoolsusuallyusedatconstructionsite?B:Electricdrillandhammerdrillareprobablyusedmostfrequentlytools.Theymaybeusedtodrillmetal,wood,concretewallsandfloors.A:Okay!Thankyou!B:Youarewelcome.Feelfreetoaskmeanytimeyouneedhelp.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesA.Choosethebestanswer.1.Tomisa

electrician.A.construction;B.industrial;C.commercial;D.residential2.Tom’sjobisto

theelectricalsystems.A.maintain;B.installandwire;C:repair;D.inspect3.Electricdrillisusedtodrill

wallsandfloors.A.metal,wood,concrete;B.concrete;C.metal,wood;D.steel(钢制)ABALookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesB.Reordertheletterswithyourpartner.LettersWordsridll

gramdia

lyfrequent

tionconstruc

acommuniction

drilldiagramfrequentlycommunicationconstructionLookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrases电工工具箱Anelectrician’stool-kitwillreflectboththespecificandgeneralnatureofthework.Thebasictoolsrequiredbyanelectricianarethoseusedinthestrippingandconnectingofconductors.Thesearepliers,sidecutters,knifeandanassortmentofscrewdrivers.Thetoolsrequiredinadditiontothesebasicimplementswilldependuponthetypeofinstallationworkbeingundertaken.Whenwiringnewhousesorrewiringoldones,theadditionaltoolsrequiredarethoseusuallyassociatedwithabricklayer.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrases电工工具箱Whenworkingonindustrialinstallations,installingconduitandtrunking,theadditionaltoolsrequiredbyanelectricianwouldmorenormallybethoseassociatedwithasheetmetaltrades.Portableelectricaltoolscanreducemuchofthehardworkforanytradesmanandincreasehisproductivity.Electricaltoolsshouldbemaintainedinagoodconditionandbeappropriateforthepurposeforwhichtheyareused.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesA.MatchtheEnglishwiththeChinese.Drawlines.B.ReadthepassageagainandcircleYesorNo.1.Thebasictoolsrequiredbyanelectricianarepowertools.YesNo2.Thebasictoolsareusuallyassociatedwithabricklayer.YesNo3.Thebasictoolsareassociatedwithasheetmetaltrades.YesNoAnassortmentofsweets. 做科学实验beappropriatefordifferentstudents 什锦糖workonscienceexperiments 适合不同的学生NoNoNoLookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesC.Learntheimportantgrammarandphraseinthetext.1.beingdone现在分词的一般被动结构做定语，表示一个正在进行或与谓语动作同时发生的被动动作Thetoolsrequiredinadditiontothesebasicimplementswilldependuponthetypeofinstallationworkbeingundertaken.在基本工具外，还需要的工具取决于电工所从事的安装工作。练习：Thebuildingbeingbuiltnowwillbeusedasahospital.中文：2.beassociatedwith与……有关系Theadditionaltoolsrequiredarethoseusuallyassociatedwithabricklayer.另外一些工具通常与砖瓦匠工作有关。练习：电气故障经常与绝缘材料失效有关。提示：breakdown,failure,insulating英文：现在正在建造的建筑将会作为一个医院。Electricalbreakdownisoftenassociatedwiththefailureofinsulatingmaterials.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesCommonTools.Needle-nosepliers尖嘴钳

Sidecutters剪钳

Diagonalpliers斜嘴钳Wirestrippers剥皮钳Flat-bladescrewdriver一字旋具Phillipsscrewdriver十字旋具LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesCommonTools.Electrician’sknife电工刀Slip-jointpliers鲤鱼钳Testpencil验电笔Hammer锤子

Steelmeasuringtape钢卷尺Hacksaw弓锯

Adjustablewrenches活动扳手LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasespartially['pa:ʃəli]adv.部分地diagram['daiəɡræm]n.图表signal['siɡnəl]n.信号communication[kə,mju:ni'keiʃən]n.通讯tool[tu:l]n.工具construction[kən'strʌkʃən]建造，建筑业site[sait]n.地点，位置；场所electric[i'lektrik]adj.电的；电动的drill[dril]n.钻孔机；vt.钻孔hammer['hæmə]n.锤子，榔头frequently['fri:kwəntli]adv.频繁地，经常地concrete[kən'kri:t]adj.混凝土的kit[kit]n.工具箱，成套工具tool-kit工具箱（套）reflect[ri'flekt]vt.反映specific[spi'sifik]adj.专门的，特定的nature['neitʃə]n.性质，本性conductor[kən'dʌktə]n.导体plier['plaiə]n.钳子side[said]adj.侧的cutter['kʌtə]n.刀具，切割机assortment[ə'sɔ:tmənt]n.各种种类搭配screwdriver['skru:,draivə]n.旋具，螺丝刀implement['implimənt]n.工具，器具undertake[,ʌndə'teik]vt.承担rewire[ri:'waiə]vi.重装电线additional[ə'diʃənəl]adj.附加的，额外的bricklayer['brik,leiə]n.泥瓦匠conduit['kɔndit]n.电线管trunking['trʌŋkiŋ]n.线槽sheet[ʃi:t]n.薄片，薄板trade[treid]n.贸易，行业portable['pɔ:təbl]adj.便携式的，手提式的reduce[ri'dju:s]vt.减少，降低tradesman['treidzmən]n.技工productivity[,prɔdʌk'tivəti]n.生产力，生产率

LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhraseswiringdiagrams布线图signalcommunicationsystems通信系统constructionsite建筑工地Toolkit工具箱（套）sidecutters剪钳anassortmentof各种各样的beassociatedwith与……有关系workon从事于sheetmetal钣金muchof许多、大量beappropriatefor对…适合LookandStudyDialogueReadiLesson5WiresandCablesGoalidentifybasicwiresandcablesLookandStudyDialogueReadingFurtherStudyWordsandPhrasesLesson5WiresandCablesGoalLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesLookupthephrasesbelowinadictionary.FillintheblankswithbothChineseandEnglishanswersaccordingtothepicturesofwireandcable.insulatedsolidwireinsulatedstrandedwirenonmetallicsheathedcablearmoredcable1._____________ 2._____________3._____________4._____________insulatedsolidwire绝缘实心线armoredcable铠装电缆nonmetallicsheathedcable非金属护套电缆insulatedstrandedwire绝缘多股绞线电线LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesJaneGoodall（A）通过电话订购电线，Mitchell（B）负责此项服务。A:Hello,thisisJaneGoodall.MayIspeaktoMr.Mitchell?B:HelloMs.Goodall,thisisArthurMitchell.HowcanIhelpyou?A:Hello,I'dliketoplaceanorderforelectricalwire.B:Howmanyareyouinterestedinorderingforpurchase?A:Quiteafew.Canyoutellmehowtochoosewiregauge?B:Calculatetheamperageforeachdevice,andlookupyourtotalamperageintheMaximumAmpsforPowerTransmissioncolumnofthegaugechart.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesJaneGoodall（A）通过电话订购电线，Mitchell（B）负责此项服务。A:CouldIgetanestimatebeforeplaceanorder?B:Certainly,I'llhaveitforyoubytheendoftheday.Howwouldyouliketopay?A:Canyoupaybycheque?B:I’msorry.Weonlyoffercreditcardpaymentsorcashondeliverytonewcustomers.A:That’sOK.Cashondelivery,then,please.Thankyouforyourhelp.B:Mypleasure.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesA.ListentothedialogueandcircleYesorNo.1.Mitchellisresponsibleforsellingproductsbyphone？YesNo2.Itisnecessarytocalculatethevoltageofeachdeceiveforchoosingwiregauge.YesNo3.Theordermustbepaidbycash.YesNoB.MatchtheEnglishwiththeChinese.Drawlines.placeanorderwithyou 电力传输powertransmission 向贵方订货quiteafewdays 好几天YesNoNoLookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrases电线和电缆Technically,themetallicmaterialthroughwhichelectriccurrentflowsiscalledaconductor.Inpracticalterms,mostpeoplecallitwire.Therearethreedifferentstylesofwire.Barewireisjustwhatthenamestates,noninsulated.Insulatedsolidwireisasolidpieceofwirethatiscoatedandencasedinaplasticcoating.Thelastisinsulatedstrandedwire.Thishasmanysmallersizedstrandsofcopperandisalsowrappedinaprotectiveplasticcoating.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrases电线和电缆Therearetwodifferenttypesofcablesthatarenormallyused.Thenonmetallic

sheathedcablehastwoormoreinsulatedconductorsandusuallyabaregroundwire.Theyareallwrappedinanouterprotectiveplasticsheath.Theotherisarmoredcableinwhichthereisablack,red,whiteandgreeninsulatedwireinsideofaprotectiveflexiblemetalhousing.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesA.Listthetypesofwireandcable.B.Reordertheletterswithyourpartner.WireCable

LettersWordsentcurr

encased

licmetal

protective

nonmetallic

barewireinsulatedsolidwireinsulatedstrandedwirenonmetallicsheathedcablearmoredcablenonmetalliccurrentencasedmetallicprotectiveLookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesC.Learntheimportantgrammarandphraseinthetext.1.which引导定语从句Technically,themetallicmaterialthroughwhichelectriccurrentflowsiscalledaconductor.在专业技术上，通过电流的金属材料称为导线。练习：Hebuiltatelescopethroughwhichhecouldstudytheskies.中文：2.in...terms（intermsofsth.）谈及；就…而言；在…方面Inpracticalterms,mostpeoplecallitwire.实际上，多数人称之为电线。练习：中国在太阳能发电方面具有优势。提示：solarpowergeneration英文：他做了一个望远镜，通过它可以研究天空。Chinahasadvantageintermsofsolarelectricalenergygeneration.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesHowtoSelectElectricalWire？Becausesomanytypesofwireareavailable（可用）,itcansometimesbedifficultforbuyers（买主）tochoosethebestmaterialtomeettheirneeds.Thewrongwiremaycauseadevicetomalfunction（失灵）,andevenleadtoincreasedfirerisksdependingontheapplication（应用）.Tochoosethecorrectelectricalwire,considerfeaturessuchasgauge,amps,temperatureandcolorbeforemakingyourfinalselection.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesWiringColorCodes（电线颜色规范）IEC(mostofEurope)ACpower（交流电）circuit（电路）wiringcolorcodes（规范）Function功能Label标记ColorProtectiveearth保护接地PEgreen-yellowNeutral中性线NblueLine,singlephase单相线LbrownLine,3-phase三相线L1brownLine,3-phaseL2blackLine,3-phaseL3greyUSACpowercircuitwiringcolorcodesFunctionLabelColorProtectiveground保护接地PGbare,green,orgreen-yellowNeutralNwhiteLine,singlephaseLblackorredLine,3-phaseL1blackLine,3-phaseL2redLine,3-phaseL3blueLookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesplace[pleis]vt.放置，发订单purchase['pə:tʃəs]n.购买gauge[ɡeidʒ]n.规格calculate['kælkjuleit]vt.计算amperage['æmpəridʒ]n.安培数device[di'vais]n.装置total['təutəl]adj.全部的maximum['mæksiməm]adj.最大极限的amp['æmps]n.安培数transmission[trænz'miʃən]n.传送column['kɔləm]n.栏，列chart[tʃɑ:t]n.图表estimate['estimeit]n.估价cheque[tʃek]n.支票credit['kredit]n.信用payment['peimənt]n.付款，支付cash[kæʃ]n.现款，现金delivery[di'livəri]n.交货；vt.传送technically['teknikli]adv.技术上metallic[mi'tælik]adj.金属的current['kʌrənt]n.（水，气，电）流flow[fləu]n.流动practical['præktikəl]adj.实际的term[tə:m]n.术语style[stail]n.类型bare[bεə]adj.裸露的state[steit]vt.声明，陈述insulate['insjuleit]vt.使绝缘insulated['insə,leitəd]adj.绝缘的solid['sɔlid]adj.固体的，实心的LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasescoated['kəutid]adj.上涂料的，覆盖着的stranded['strændid]adj.绞成股的encasedadj.包装的coating['kəutiŋ]n.包层strand[strænd]n.线size[saiz]vt.改变大小copper['kɔpə]adj.铜的wrap[ræp]vi.包起来protective[prəu'tektiv]adj.防护的nonmetallic[,nɔnmi'tælik]adj.非金属的sheathed[ʃi:θt]adj.装有护套的outer['autə]adj.外面的sheath[ʃi:θ]n.护套armored['ɑ:məd]adj.装甲的inside[,in'said]prep.在…之内flexible['fleksibl]adj.柔韧的，易弯曲的LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy52WordsandPhrasesplaceanorder订购quiteafew相当多creditcard信用卡powertransmission电力传输cashondelivery货到付现currentflow电流interms…就……而言noinsulated非绝缘的solidwire单线，实芯线strandedwire绞线nonmetallicsheathedcable非金属护套电缆groundwire地线armoredcable铠装电缆LookandStudyDialogueReadiLesson6JoiningWiresGoallearndescriptionsofbasicwirejoiningmethodsLookandStudyDialogueReadingFurtherStudyWordsandPhrasesLesson6JoiningWiresGoalLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesA.Lookupthephrasesbelowinadictionary.FillintheblankswithbothChineseandEnglishanswersaccordingtothepictures.solderinggunsafetysignpowerlineelectricalpanel1._____________ 2._____________3._____________4._____________safetysign安全标志electricalpanel配电盘powerline输电线solderinggun烙铁LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesB.Lookupthewordandthephrasesbelowinadictionary.FillintheblankswithbothChineseandEnglishanswersaccordingtothepicturesofwirejoining.tapconnectorwirenutsplice1._____________ 2._____________3._____________tapconnector搭接连接器Splice捻接wirenut接线帽LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesJim（A）向电工Marry（B）请教关于电气安全标志含义的问题。A:I’mnotquitesurethemeaningofthissign,KeepElectricalPanelClear.Doseitmeankeepthepanelclear?B:Yes,that’sright,butitmeansmorethanthat.Itmeansdonotplaceorstoreanythinginfrontofthissign.Thissignremindsemployeesthatitmustbepossibletogettotheelectricalpanelatalltimes.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesJim（A）向电工Marry（B）请教关于电气安全标志含义的问题。A:Oh,Isee.AndwhataboutPowerLinesAbovesign?Hasitgotsomethingtodowithsafety?B:Yes,buthereitmeanswatchoutforpowerlinesabovewhenyouareworkingbelow.A:OK,Igetit.NowwhatdoseHighVoltageKeepAwaysignmean?B:Itmeansanurgentlyhazardoussituation.Ifnotavoided,willresultindeathorseriousinjury.A:Ok,I’vemadeanoteofthat.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesA.MatchtheEnglishwiththeChinese.Drawlines.havesomethingtodowiththeeducationmethods(方法). 远离火源watchoutforwhatyousay. 与教育方法有关系keepawayfromthefire. 说话要当心B.Matchthepicturesofsafetysignwiththeirmeanings.Drawlines.Keepawayurgentlyhazardoussituation.Donotplaceorstoreanythinginfrontofthissign.Watchoutforpowerlinesabovewhenyouareworkingbelow.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrases电线连接Solderlessconnectors(wirenuts)havealmostcompletelyreplacedsolderingandtapingforcertaintypesofsplices.Theyaredesignedtoholdseveralelectricalwiresfirmlytogetherandprovideaninsulatingcoverforthewires.Theyareavailableinseveralsizes.Thesizeofthesolderlessconnectorisdeterminedbythenumberandthesizeofthewirestobejoined.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrases电线连接Becausesolderlessconnectorsaretime-savingandeasytouse,theelectriciannolongerneedstosoldereachandeverysplice.Itnotonlytakeslesstimetomakeasolderlessconnectionbutalsorequireslessskill.However,solderingisstillthemostreliablemethodofjoiningpiecesofwire,andeveryelectricianshouldlearnhowtosolder.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrases电线连接Oncethedecisionismadetosolderanelectricalspliceandtheinsulationhasbeenstrippedoffthewire,thespliceshouldbesolderedassoonaspossible.Solderusuallycomesineitherbarorwireformandismeltedwithheatfromsolderingdevices,suchasasolderingiron,solderinggunorpropanetorch.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesA.Reordertheletterswithyourpartner.chtor

jino

ersdolthodme

tionconnec

B.Readthepassageagainandanswerthequestions.1.Solderless

havealmostcompletelyreplacedsometypesofwiresoldering.2.Thesizeofthesolderlessconnectorisdeterminedby

ofthewirestobejoined.3.Itnotonlytakes

tomakeasolderlessconnectionbutalsorequires

.4.Solderismeltedwithheatfrom

.connectiontorchjoinsoldermethodconnectorsthenumberandthesizelesstimelessskillsolderingdevicesLookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesC.Learntheimportantgrammarandphraseinthetext.1.bedeterminedby由…所决定Thesizeofthesolderlessconnectorisdeterminedbythenumberandthesizeofthewirestobejoined.非焊接连接器的尺寸规格由所连接的导线数量和尺寸决定。练习：熔断器的特性由熔丝决定。提示：property,fuse英文：2.Once一……就……Oncethedecisionismadetosolderanelectricalspliceandtheinsulationhasbeenstrippedoffthewire,thespliceshouldbesolderedassoonaspossible.一旦决定焊接一个电气接头，并且已经剖削导线绝缘层，应尽快完成绞接头的焊接。练习：Onceyouhavebegun，youmustcontinue．中文：Thepropertyofthefuseisdeterminedbyfusewire.一旦你开始就必须坚持。LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesHowtoSolder.Firstafewsafetyprecautions（预防）:• Nevertouchtheelement（原件）ortip（尖端）ofthesolderingiron.• Takegreatcaretoavoidtouching（避免接触）themainsflex（皮线）withthetipoftheiron.• Alwaysreturnthesolderingirontoitsstand（台座）whennotinuse.• Workinawell-ventilatedarea（通风良好区域）.• Washyourhandsafterusingsolder.Preparingthesolderingiron:• Placethesolderingironinitsstandandplugin（接通电源）.• Dampenthesponge（润湿海绵）inthestand.• Waitafewminutesforthesolderingirontowarmup（变热）.• Wipe（擦拭）thetipoftheirononthedampsponge.• Meltalittlesolderonthetipoftheiron.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasesHowtoSolder.Youarenowreadytostartsoldering:• Holdthesolderingironlikeapen,nearthebaseofthehandle（柄的基部）.• Touchthesolderingironontothejoint（连接点）tobemade.• Feed（添加）alittlesolderontothejoint.• Remove（移开）thesolder,thentheiron,whilekeepingthejointstill.• Inspect（检查）thejointclosely（接近地）.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhrasessign[sain]n.符号，标志panel['pænl]n.仪表板remind[ri'maind]vt.提醒urgently['ə:dʒəntli]adv.迫切地，紧急地hazardous['hæzədəs]adj.有危险的avoid[ə'vɔid]vt.避免，避开result[ri'zʌlt]vi.结果，导致injury['indʒəri]n.伤害solderless['sɔldəlis]adj.非焊接的connector[kə'nektə]n.连接器，连接头nut[nʌt]n.螺母，螺帽almost['ɔ:lməust]adv.差不多，几乎completely[kəm'pli:tli]adv.完全地，彻底地solder['sɔldə]vi.焊接n.焊料tap[tæp]vt.搭接splice[splais]vt.绞接，捻接hold[həuld]vt.握着，夹住firmly['fə:mli]adv.坚固地，稳固地available[ə'veiləbl]adj.有效的，可利用的determine[di'tə:min]vi.决定join[dʒɔin]vt.结合，连接time-saving['taim,seviŋ]adj.节省时间的connection[kə'nekʃən]n.连接method['meθəd]n.方法insulation[,insju'leiʃən]n.绝缘bar[bɑ:]n.条，棒form[fɔ:m]n.形状，外形melt[melt]vi.熔化iron['aiən]n.烙铁propane['prəupein]n.丙烷torch[tɔ:tʃ]n.喷灯

LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy62WordsandPhraseskeepclear保持通畅electricalpanel配电盘atalltimes始终powerline输电线have(get)somethingtodowith与…有关watchout小心keepaway离开resultin导致，结果是bedeterminedby由…所决定timesaving节省时间的eachandevery每一个assoonaspossible尽快solderingiron锡焊烙铁propanetorch液化气喷灯LookandStudyDialogueReadiELECTRICALENGLISH英语电工ELECTRICALENGLISH英语电工Unit1JobandWorkplaceUnit2ElectricalToolsandMaterialsUnit3HouseWiringUnit4MeasuringInstrumentContents

Unit5MotorsandTransformersUnit1JobandWorkplaceUnit2Lesson4WhatAreinYourTool-kit?Lesson5WiresandCablesLesson6JoiningWiresUnit2ElectricalToolsandMaterialsLesson4WhatAreinYourToolLesson4WhatAreinYourTool-kit?GoalIdentifythebasictoolsusedintheelectricaltrades.LookandStudyDialogueReadingFurtherStudyWordsandPhrasesLesson4WhatAreinYourToolLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesA.Lookupthephrasesbelowinadictionary.FillintheblankswithbothChineseandEnglishanswersaccordingtothepictures.constructionsitebricklayertrunkingtool-kit1._____________ 2._____________3._____________ 4._____________tool-kit工具箱constructionsite建筑工地bricklayer砖瓦匠trunking线槽LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesB.Lookupthephrasesbelowinadictionary.FillintheblankswithbothChineseandEnglishanswersaccordingtothepicturesoftoolelectricdrillhammerdrillpliersscrewdriver1._____________ 2._____________3._____________ 4._____________electricdrill电钻hammerdrill冲击钻screwdriver螺丝刀pliers钳子LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesTomSmith（A）是新参加工作的建筑电工，他在工地办公室内向工程项目经理（B）请教工作上的问题。A:Goodmorning,madam.B:Goodmorning,youmustbeTom.A:Yes,TomSmith.B:Welcometojoinourcompany.A:SowherecanIstartmywork?B:Well,yourjobistoinstallandwiretheelectricalsystemsinpartiallybuiltbuilding,followingwiringdiagrams.Youalsoinstallelectronicequipmentandsignalcommunicationsystems.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesTomSmith（A）是新参加工作的建筑电工，他在工地办公室内向工程项目经理（B）请教工作上的问题。A:Whataretheelectricalpowertoolsusuallyusedatconstructionsite?B:Electricdrillandhammerdrillareprobablyusedmostfrequentlytools.Theymaybeusedtodrillmetal,wood,concretewallsandfloors.A:Okay!Thankyou!B:Youarewelcome.Feelfreetoaskmeanytimeyouneedhelp.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesA.Choosethebestanswer.1.Tomisa

electrician.A.construction;B.industrial;C.commercial;D.residential2.Tom’sjobisto

theelectricalsystems.A.maintain;B.installandwire;C:repair;D.inspect3.Electricdrillisusedtodrill

wallsandfloors.A.metal,wood,concrete;B.concrete;C.metal,wood;D.steel(钢制)ABALookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrasesB.Reordertheletterswithyourpartner.LettersWordsridll

gramdia

lyfrequent

tionconstruc

acommuniction

drilldiagramfrequentlycommunicationconstructionLookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrases电工工具箱Anelectrician’stool-kitwillreflectboththespecificandgeneralnatureofthework.Thebasictoolsrequiredbyanelectricianarethoseusedinthestrippingandconnectingofconductors.Thesearepliers,sidecutters,knifeandanassortmentofscrewdrivers.Thetoolsrequiredinadditiontothesebasicimplementswilldependuponthetypeofinstallationworkbeingundertaken.Whenwiringnewhousesorrewiringoldones,theadditionaltoolsrequiredarethoseusuallyassociatedwithabricklayer.LookandStudyDialogueReadiLookandStudyDialogueReadingFurtherStudy42WordsandPhrases电工工具箱When