人社版《电工英语》教案-Unit3

1、第 周 星期五 第5、6节 201 年 月 日课 题Unit Three House WiringLesson seven Reading Diagrams授课方式教 学目 的Learn useful expressions for using wiring plan.练，讲教学内容分析重点句子翻译（依靠工具书，逐词翻译，再整句理解）难点长句翻译教具电脑、投影课时2教 学 过 程一、 组织教学：检查人数。二、 复习：（1） 拼读：words116, phrases 1-6（抽查5个学生，要求掌握看音标读单词的技能）（2） 简要复习关键单词三、 新课学习Dialogue：1、学习单词1-16号并

2、把单词意思写在书本上；2、学习英语五种基本句型和例句（阅读材料）3、分析、翻译下面的句子1） Why must the installation height be from 0.45m to 1.2m above the floor level? 为什么安装高度必须在地板之上0.45-1.2米之间？2） This provision is made for people to gain access to the facilities. 这个规定是为了让人可以接近这个设施而设定的。3） The equipment includes the consumer unit, as it conta

3、ins devices such as MCB and RCD that may need operation or resetting by the user of the dwelling. 这个设备包括了用户配电箱，由于它包含了例如断路器和漏电保护开关这样的器件，这些器件可能需要被住宅里的用户操作或重启。4） It protects the circuits supplying of socket out lets and the cables buried in the wall. 它保护了插座的供电电路和埋在墙里的电缆。4、听CD，再朗读Dialogue四、小结：1、朗读单词、朗读对

4、话。2、布置作业作业布置1 抄写本课单词和短语。课后分析审阅签名： 年 月 日附：Dialogue文本DialogueA: Hi, Carole. Good afternoon!B: Hey, Jim! Good afternoon. Whats the problem?A: I have something to discuss with you. Do you understand the installation instructions of the consumer unit thoroughly?B: Almost.A: Why must the installation heig

5、ht be from 0.45m to 1.2m above the floor level?B: This provision is made for people to gain access to the facilities. The equipment includes the consumer unit, as it contains devices such as MCB and RCD that may need operation or resetting by the user of the dwelling.A: Oh, I see.B: Is it necessary

6、to have RCD protection?A: Yes. It protects the circuits supplying of socket out lets and the cables buried in the wall.B: OK, I see. Thanks a lot.第 周 星期二 第5、6节 201 年 月 日课 题Unit Three House WiringLesson seven Reading授课方式教 学目 的1） Learn useful words and expressions for wiring plan.2） Try to translate s

7、entences.练，讲教学内容分析重点单词学习、修饰语后置现象、句子翻译难点句子翻译、教具电脑、投影课时2教 学 过 程一、 组织教学：检查人数。二、 复习：（3） 拼读：words1641（抽查5个学生，要求掌握看音标读单词的技能）（4） 简要复习关键单词Construction建造 building建筑物 wiring布线 electrical电气的 Contractor承包商 diagram图纸 system系统 switch开关 Lighting照明灯 device器件 living-room卧室 show显示 Ceiling天花板 north北面 connection连接 soli

8、d固体Conduit线管 cable电缆 represent代表，表示三、新课学习：Reading diagram：1、把单词16-41号写在书本上；2、本课非常艰深，翻译几个较简单的句子。1）A necessary part of any set of drawing for construction of a building is the wiring plan.（系+表结构）（修饰语后置） 任何建筑物的建造图纸都必的部分是布线计划。2）These devices and wiring arrangements are represented by means of symbols. 这

9、些器件和布线的安排由符号的含义来表示。（被动语态）3）The living-room plan shows two three-way switching arrangements. 卧室的计划中显示了两个三路开头的布局。（主+谓+宾结构）4）The cross lines indicate the conductors in the conduit or cable. 交叉线指示出在线管里或电缆里的导体。（主+谓+宾结构）（修饰语后置）四、小结：1、修饰语后置现象非常普遍,在本文中还有一些例子。components of the buildings electrical system two

10、 receptacle outlets on the north wall2、布置作业作业布置1、完成课本上本课所有练习；2、翻译Learn More课后分析审阅签名： 年 月 日附录：Reading的文本Wiring diagram布线平面图A necessary part of any set of drawing for construction of a building is the wiring plan. Architects, electrical designers, and contractors use floor plan diagrams to locate comp

11、onents of the buildings s electrical system, such as receptacle outlets, switches, lighting fixtures, and other wiring devices. These devices and wiring arrangements are represented by means of symbols. The living-room plan shows two three-way switching arrangements. In one arrangement, a ceiling ou

12、tlet is switched from two door locations. Similarly, two receptacle outlets on the north wall are switched from two separate locations. The connection between switch and ceiling outlet is drawn with a medium weight solid line, indicating that the connection (conduit or cable) is to be concealed in t

13、he wall or ceiling above. The cross lines indicate the conductors in the conduit or cable. If cross lines are omitted two wires are understood to be in the connection.第 周 星期五 第5、6节 20 年 月 日课 题Unit Three House WiringLesson Eight Installing Entrance Equipment授课方式教 学目 的Learn useful expressions for inst

14、alling entrance devices.Translations training练，讲教学内容分析重点学、认单词；查询资料，完成练习（解决问题的能力训练）；学习对话。难点对话中的长句翻译。教具电脑、投影课时2教 学 过 程一、 组织教学：检查人数。二、 复习： 1 点评作业2 复习词汇：Wiring material tool check project householdtoolbox voltage tester special get start三、 新课学习1、 Words and phrases(1-9号)2、 Look and Learn:完成Look and Learn

15、的A、B题。3、 Words and expressions:读单词，写词意4、 Dialogue：10句，了解意思，听录音注：常用表达（应用练习）：Wed better 我们最好 Weve got 我们有make sure确保 otherwise 否则四、 长句翻译训练：1、 Good, the materials are ready, but wed better check the tools again to make sure.好的，材料已经准备好了，但我们最好再检查一下工具以确保（不遗漏）2、 We mustnt forget anything; otherwise the tim

16、e limit for the project will be delayed. 我们不能忘记任何东西，否则项目的工期将被延迟。（修饰语后置）3、 You tell me what youve got and Ill make sure weve got them.你告诉我你有什么，我来确认我们已经有了。五、小结：1、到目前为止，电工电子元器件、工具、材料的单词复习2、布置作业作业布置1. 上节课作业完成得不好的同学重做；2. 抄写本课词汇课后分析审阅签名： 年 月 日附录：Dialogue 的文本Dialogue1) A: I think Ive got all the wiring mat

17、erials and tools.2) B: Good, the materials are ready, but wed better check the tools again to make sure. We mustnt forget anything; otherwise the time limit for the project will be delayed. You tell me what youve got and Ill make sure weve got them.3) A: OK. Weve got two household toolboxes.4) B: Ri

18、ght, weve got them. Now whats the next tool?5) A: A 3001 voltage continuity tester.6) B: Weve certainly got the tester. Its so special you cant miss it!7) A: The next tool is a wire stripper.8) B: Right, weve got it. And the last one?9) A: The last one is a fish tape.10) B: Ok, weve got that, too. N

19、ow we can get started.第 周 星期二 第5、6节 201 年 月 日课 题Unit Three House WiringLesson Eight Installing Entrance Equipment授课方式教 学目 的1、Learn useful expressions for installing entrance devices.2、Understand the Reading text, get some expressions.练，讲教学内容分析重点学、认单词；查询资料，完成练习，掌握一些专业工作的表达方式。难点掌握重点单词，表达方式的训练教具电脑、投影课时

20、2教 学 过 程一、 组织教学：检查人数。二、 复习1、点评作业2、听录音Dialogue，完成P43的A题。4、常用Expressions的造句练习Wed better 我们最好 Weve got 我们有make sure确保 otherwise 否则Its so special that get started三、 新课学习：Lesson Eight，Reading1、 学单词9-29，完成P42的A overhead v'hed adj. 高架的 feed fid vt. 供给transformer træns'fm n. 变压器 attach 't&#

21、230;t vt. 附着meter 'mit n. 仪表 volt vlt; vlt n. 伏特grounded 'graundid adj. 接地的 neutral 'njutr()l adj. 中立的，中性的homeowner 'hmn n. 私房屋主 entrance 'entr()ns n. 入口pipe pap n. 管 pole pl n. 杆rod rd n. 棒 breaker 'brek n. 断路器distribute d'strbjut; 'dstrbjut vt. 分配throughout ru'a

22、t prep. 遍及 disconnect dsk'nekt vt. 断开incoming 'nkm adj. 引入的 main men adj. 主要的individual nd'vdj()l adj. 单独的 branch brn(t) n. 分支step down 逐步减低 weather head 防水罩meter box 表箱 service entrance 总进户端ground rod 接地棒 power pole 电线杆breaker box 开关盒 fuse box 保险丝盒service panel 配电箱 branch circuit 支路2、在R

23、eading 材料中找出各专业词汇，标注意思。3、理解Reading的含义，用英语表述以下短语： 供电线路- service lines； 把电压降下来- step down the voltage进入家里- feed your home 连到XX- travels to，attached to电表箱- meter box 电力公司- power company接地中性线- grounded neutral wire 电气面板-electrical panel开关箱-breaker box 保险丝盒-fuse box主断路器- main breaker 分路断路器-individual bre

24、aker在全屋分配电力-distribute power throughout your home 把电力从供电线路中断开-disconnect power from the incoming feed四、小结1、复习学过的一些电工器材、工具单词：Tool, tool kit, wire, cable, conduit, wire striper, pipe, fish tape, fuse box2、 本课中有几个动词被多次用来描述电气布线的工作，非常有用，可认真练习掌握。feed(喂，过去式fed) travel(旅行)，attach（附着），distribute（分布，分配）3、布置作业

25、作业布置1、完成书上Lesson7-8（P36-45）的所有填空题。2、翻译Learn More。课后分析审阅签名： 年 月 日附录：Reading 文本材料Installing Entrance Equipment进户装置安装The power companys overhead service lines feed the transformer to step down the voltage to feed your home. It then travels to the weather head which is attached to a conduit connected to

26、 a meter box.Two 120 volt wires and a grounded neutral wire feed the meter through the weather head. The power company is responsible for power to the meter and the homeowner takes it from there.The electric meter is attached to the service entrance pipe and is usually attached to the side of your h

27、ouse. It may be attached to the power companys power pole also. It can be fed overhead or underground. The service must be connected to a ground rod outside the house.The electrical panel, breaker box, fuse box or service panel is the next device in line. This panels job is to distribute power throu

28、ghout your home and disconnect power from the incoming feed.The power comes in to a main breaker, then individual breakers are distributed to individual circuits (called branch circuits) throughout your home.第 周 星期五 第5、6节 201 年 月 日课 题Unit Three House WiringLesson Nine Installing Cables授课方式教 学目 的Lear

29、n useful expressions for installing cables.Translating training练，讲教学内容分析重点学、记单词；口语训练；翻译句子难点单词、翻译教具电脑、投影课时2教 学 过 程一、 组织教学：检查人数。二、 复习旧课：讲解作业。三、 新课学习：Lesson Nine1、Words and expressions: （1）读单词，写词意（黑体字） （2）完成Look and Learn的填空题、P48的B题（Reorder）（3）Dialogue 里同学们可能不认识的（或前面学过的）单词：quickly the house wiring disc

30、uss rewire shower cables take down install advice save space current consumer unit circuit breaker the light switches sockets material estimate2、学习Dialogue（10句），讲解意思重点练习征询意见、发表看法、提出建议的表达方式 Id like to discuss my plans for with you.（我想要和你讨论计划，行程）I dont want to （我不想） （拜访他；打电话给他；浪费时间）Youll need to （你需要通

31、过考试；买一张票；下一个订单）Thats what I want. Whats your advice on（关于你的建议是什么？这件工作；我的计划）In your case youll need（你这种情况需要一个大屏幕；一个老婆）Id take this advice. Thats very useful.3、听录音，朗读。4、Reading （1）复习出现在文中的专业词汇，完成P49的练习A。 （2）简单句子翻译：A raceway is any enclosed channel designed for holding wires. 电缆槽是设计来支撑电线的封闭式通道。Conduits

32、 and wiring gutters are both common examples of raceways.线管和线槽都是电缆槽的普遍的例子。Raceway wiring systems are more expensive to install and require more training.电缆槽布线系统安装的费用更高、需要更多的训练。They have the advantage that wires can be pulled out and replaces with new ones after original construction.它们的优点是在初始的建设完工后，

33、它们很容易拔出，用新的电线替代。四、 小结：讨论问题的用语;注意积累词汇。五、布置作业作业布置翻译Learn More课后分析审阅签名： 年 月 日附录：Lesson Nine 的文本DialogueA: Thanks for coming so quickly, Mr. Smith. Id like to discuss my plans for the house wiring with you.B: Yes, my boss tells me you want to rewire the rooms and put in a kitchenette and a shower.A: Yes

34、, thats right and I dont want to see all those ugly cables.B: Well, youll need to take down the unconcealed cables and install a new underground cable.A: Thats what I want. Whats your advice on the water heater?B: In your case youll need a strong water heater. Youd better install a continuous flow w

35、ater heater to save space.A: Id take this advice.B: Youll need 380-volt three phase current and a small consumer unit with（有着）circuit breakers and an RCD.A: OK. Ive got a sketch here of where I want the light switches, sockets, shower and cooker.B: Thats very useful. Ill use it to see what materials

36、 well need and give you an estimate.Reading Installing Cables电缆安装Cable wiring methods are less expensive than raceway systems and require less training for the installer. They offer the advantage of lower first cost, but changes after initial construction are fairly difficult and expensive to make.I

37、ndividual conductors installed in tubular raceways are much less common in residential construction. A raceway is any enclosed channel designed for holding wires. Conduits and wiring gutters are both common examples of raceways. Raceway wiring systems are more expensive to install and require more t

38、raining. They have the advantage that wires can be pulled out and replaces with new ones after original construction.Certain general rules and considerations apply to all wiring methods, including the components and equipment used in the installation.第 周 星期二 第5、6节 201 年 月 日课 题Review Unit 3授课方式教 学目 的

39、1、复习7-9课的单词、短语和口语表达。练，讲教学内容分析重点单词、短语、表达训练难点单词记忆教具电脑、投影课时2教 学 过 程一、 组织教学：检查人数。二、 复习： 1、 Important words and phrases in Unit 3: Lesson 7Lesson 8Lesson 9contain kn'tein vt. 包含delay d'le vi. 延期，耽搁1. ugly 'gl adj. 丑陋的operation 'prein n. 操作toolbox 'tu:l,bks n. 工具箱heater 'hit n. 加热器

40、reset ri'set vt. 重置tester 'test n. 检测器strong str adj. 强的，强劲的protection pr'tekn n. 保护tape tep n. 带子phase fez n. 相，阶段protect pr'tekt vt. 保护feed fid vt. 供给sketch sket n. 略图circuit 'skit n. 电路，回路transformer træns'fm n. 变压器useful 'ju:sfl adj. 有益的，有帮助的socket 'skit n. 插

41、孔，插座meter 'mit n. 仪表cooker 'kk n. 炊具supply s'plai vt. 供给，提供volt vlt; vlt n. 伏特raceway 'reswe n. 电缆槽drawing 'dr(r)i n. 图画grounded 'graundid adj. 接地的installer in'st:l n. 安装者，安装工locate l'keit vt. 定位entrance 'entr()ns n. 入口initial 'nl adj. 最初的component km'pnnt n. 成分，