驾驶台设备.doc

课 题： Unit2/Lesson 5 Bridge Equipment 课 时： 2 课 型： Reading & Writing 日 期：2012目的要求： At the end of class, students will be able to grasp some bridge equipment and know their functions. 教学内容： 1) New words and expressions 2) Text: Bridge Equipment 重 点：Bridge equipment 难 点：the functions of bridge equipment教学过程：Step 1 Greeting Step 2 Revision 1. Answer questionsIn order to describe ships measurement there are some terms. Can you tell me what they are?2. Dictate the words and phrasesMoulded breadth/ length over all/ draft/ air draftStep 3 Lead-inQ: On the bridge, there are various aids to navigation. Can you try to list some of them? Step 4 New Lesson 1. Learn new words and expressions Radar / Sextant /Chronometer /Binoculars 2. Ss read passages about bridge equipment and figure out their functionsStep 5 Summary Revise bridge equipment by doing the after-text exercise. Please turn to page 33 and finish the task.Step 6 Homework 1) Recite the words and expressions learnt today2) Learn by heart the bridge equipment.备 注Step 1 GreetingT: Good morning/afternoon, boys. Step 2 Revision 1. Answer questions:T: In last lesson, we have learnt something about ships measurement. So first lets revise the main points. In order to describe ships measurement there are some terms. Can you tell me what they are?S: moulded breadth/ moulded depth/ beam/length over all/ length between perpendicularsDraft/air draft/ freeboard/ underkeel clearanceTonnage/displacement/ gross register tonnage/ net tonnage/ deadweight tonnage/ cargo carrying capacityBale space/grain space/oil spaceT: Which of the above indicates how many tons of cargo a ship can carry?S: cargo carrying capacity.T: Which indicates the distance from the bottom of the keel to the surface of the water? S: draft. T: Which indicates the distance between deckline and waterline?S: freeboard. T: What shows the distance between the extreme fore-end and the extreme aft-end of the vessel?S: length over all. T: Which shows the distance from the waterline to the highest point of the vessel. S: air draft. 2. Dictate the words and phrases:T: Now, you should close your book and take out your exercise book. Lets do the dictation. Moulded breadth/ length over all/ draft/ air draft/freeboard/underkeel clearance/ gross register tonnage/ deadweight tonnage/ displacement/ cargo carrying capacityStep 3 Lead-in T: On the bridge, there are various aids to navigation. Can you try to list some of them?S: radar, gyro compass, magnetic compass, steering gear, GMDSS, GPS, ARPA T: Well done. Step 4 New Lesson 1. Learn new words and expressionsT: In todays class, we will just learn bridge equipment. Please turn to page 32 and read the new words and expressions after me. Radar 雷达Sextant 六分仪Chronometer 天文钟Binoculars 望远镜Azimuth mirror 方位镜Pelorus 哑罗经BMagnetic compass 磁罗经Gyro compass 陀螺罗经Echo sounder 测深仪Steering gear 舵机Automatic pilot 自动舵Radio signal 无线电信号Sonar system 声纳系统Scanner 天线Image 图象Interpretation 解释Decca Navigator 台卡导航仪Omega navigator 奥米伽导航仪Loran 罗兰Synchronized signals 同步信号Curved line 曲线Global Positioning System (GPS) （卫星）全球定位系统Rudder angle indicator 舵角指示器Digital selective calling (DSC) 数字选择呼叫Distress traffic 遇险通信Search and Rescue Transponder(SART) 搜救雷达应答器NAVTEX receiver 航警电传接收器Emergency Position Indicating Radio Beacon (EPIRB) 应急示位标Azimuth 方位角；天体方位Transit bearings 串视方位；叠标方位Hyperbolic Positioning System 双曲线定位系统2. Ss read passages about bridge equipment and figure out their functionsT: Now, lets look at the page 28. Some bridge equipment is list one by one. You should read them and figure out their functions. 1) The marine sextant: Words and phrases: precision 精密 /optical instrument 光学仪器 Function: measure horizontal and vertical angles.2) Ships clocks: Words and phrases: local time 当地时间/ regulate 调节，管理/ routine 常规/ internal 内部的 Be likely to 可能/ synchronize 使同步/ prior to 在之前Function: indicate the ships local time 3) The chronometer: Words and phrases: timekeeper 钟表/ Greenwich Mean Time (GMT) 格林尼治标准时间Error 误差/ verify 校正 / radio signal 无线电信号/ transmit 发送 Function: records the GMT.4) Binoculars:Words and phrases: distant object 远处物体/ magnify 放大/ superior to 比好Telescope 望远镜 Function: see distant objects clearly.5) Magnetic compass: Words and phrases: permanent 永久的 / reliable 可靠的/ mount 安装/ gimbal 常平环Binnacle 罗经柜/ reflector unit 反射镜/ project 投影Function: indicate direction 6) Gyrocompass: Words and phrases: principle of rigidity 定轴性原理/ spin 旋转/recommend 推荐continuously 不断地/ subsequently 随后/ latitude 纬度/ repeater 分罗经emergency 应急/ excessive 过度/ helmsman 舵工Translation: Should a gyro compass stop for any reason, it should be restarted and subsequently checked before use to ensure it has settled and is reading correctly. 如果陀螺罗经由于某种原因停止工作，在使用前必须重新启动并作检查以确保它已恢复正常，读数正确。Function: indicate direction7) Azimuth mirror:Words and phrases: rim 环/ celestial and terrestrial 空中和陆地Function: show accurate bearings of celestial and terrestrial 8) The echo sounder:Words and phrases: pulse 脉冲/display 显示/ chart 图表 / pen recorder 笔尖记录器 / outline 轮廓/ frequency 频率 Translation: The received pulse is displayed on a chart by a pen recorder so that the navigator can see the outline of the bottom over which the vessel is passing. 收到的脉冲波通过笔尖记录器显示在图表上，这样航海者可以看到船舶所经过海底的轮廓。Function: measure the depth of water under the ship and see the outline of the bottom9) Speed measurement equipment (Log):Words and phrases: log 计程仪Function: measure the speed of the vessel through water.10) Radar:Words and phrases: radio detection and ranging system 无线电探测和测距系统/ target 物标Radio beam 无线电射线/ rotating radar scanner 旋转的雷达天线convert 转换/ Trail 痕迹Function: detect the presence of ships, buoys, coast and many other targets and obtain range and bearing of these targets. 11) Automatic radar plotting aid (ARPA):Words and phrases: automatic 自动/ plot 标绘/ update 更新/ selected 所选的Function: automatic plotting and continuously updating information of selected targets. 12) Direction finder (DF):Words and phrases: direction finder 无线电测向系统/ radio receiver 无线电接收器Radio beacon 无线电信标/ position fixing 定位/ distressed ship 遇险船lifeboat 救生艇 Function: for position fixing and search and rescue of distressed ships and lifeboats sending out radio signals.13) Hyperbolic navigational aids: Words and phrases: long ranging 远距离Function: for position fixing 14) Steering gear and autopilot: Words and phrases: OOW 值班驾驶员/ ensure 确保SOLAS= Convention on the Safety of Life at Sea 海上人命安全公约Observe 遵守/ comprise 包含/ manual steering 手动舵supplement 补充/ automatic pilot 自动舵emergency back-up steering position 应急备用操舵位steering gear flat 舵机平台/ steering mode selector 操舵模式选择器Translation: If an autopilot is fitted, a steering mode selector switch for changing between automatic and manual steering, and a manual override control to allow the OOW to gain instant manual control of the steering, will be required. 如果装有自动舵，操舵模式选择器可以在自动舵和手动舵之间转换，必须有人工操控（应急操舵）装置以使值班驾驶员能在需要时立即对操舵进行立即的手动控制。Function: steer the course 15) Course recorder: Words and phrases: trace 航迹Function: provide paper trace of course steered by the vessel against time.16) GPS and DGPS:Words and phrases: civilian use 民用/ commercial user 商业用户/accuracy of the order 精确度Differential GPS 差分全球定位系统terrestrial monitoring station 地面监听站/ HF radio link 高频无线电中断站antenna 天线Translation: A global navigation satellite system is a satellite system that provides ships fitted with suitable receivers with a means of obtaining continuous worldwide position, time and speed information. 全球卫星导航系统是一种卫星系统，它为装有相应接收器的船舶提供获取连续的、全球性的位置、时间及速度信息的手段。Function: global positioning 17) Sound signaling apparatus: Words and phrases: sound signaling apparatus 声响信号器COLREGS=regulations for the Prevention of Collisions at Sea 海上避碰规则whistle 汽笛/ bell 钟/gong 锣Function: give sound signal 18) Navigation lights and other lights: Words and phrases: navigation light 航行灯/ anchor light 锚灯/ all round light 环照灯in accordance with 依照Function: display signals 19) GMDSS equipment (VHF radiotelephone/VHF DSC transmitter and watch receiver/DSCSART/NAVTEX receiver/ EPIRB):Words and phrases: GMDSS=global maritime distress and safety system 全球海上遇险和安全系统stipulate 规定/ VHF radiotelephone 甚高频无线电话urgency traffic 紧急通信/ acknowledge 确认/ relay转发distress alert遇险警报/homing signal 导航信号Function: operate GMDSS20) Alarms system on the bridge(smoke detector alarm/inert gas pressure alarm/navigational equipment alarm) :Words and phrases: alarm system 警报系统/ draw the attention吸引注意critical situation危急情况/ smoke detector 烟雾探测器 inert gas pressure alarm 惰气压力警报off course alarm 偏航警报器/ failure 故障/steering motor 舵机电动机Function: draw the attention of the officer of the watch towards critical situation that has developed or may be developing.21) Other instruments (tachometer/rudder angle indicator/ list or roll indicator/speed indicator/ wind speed indicator/ diagrams and data): Words and phrases: tachometer 转速表/ revolution 转数/ dial 刻度盘upright position 正浮位置/ wind vane 风向标 manoeuvring characteristics 操纵性Function: display informationStep 5 Summary T: Now, lets try to revise bridge equipment by doing the after-text exercise. Please turn to page 33 and finish the task. S: (do the exercise)T: Now, I will check your answer.Name of equipment:Function:1)The marine sextant measure horizontal and vertical angles2)ships clocksindicate the ships local time3)the chronometerrecords the GMT4)binocularssee distant objects clearly5)magnetic compassindicate direction6)gyrocompassindicate direction7)azimuth mirrorshow accurate bearings of celestial and terrestrial8)the echo soundermeasure the depth of water under the ship and see the outline of the bot