駕駛臺設備.doc

課 題： Unit2/Lesson 5 Bridge Equipment 課 時： 2 課 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. 教學內(nèi)容： 1) New words and expressions 2) Text: Bridge Equipment 重 點：Bridge equipment 難 點：the functions of bridge equipment教學過程：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.備 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 雷達Sextant 六分儀Chronometer 天文鐘Binoculars 望遠鏡Azimuth mirror 方位鏡Pelorus 啞羅經(jīng)BMagnetic compass 磁羅經(jīng)Gyro compass 陀螺羅經(jīng)Echo sounder 測深儀Steering gear 舵機Automatic pilot 自動舵Radio signal 無線電信號Sonar system 聲納系統(tǒng)Scanner 天線Image 圖象Interpretation 解釋Decca Navigator 臺卡導航儀Omega navigator 奧米伽導航儀Loran 羅蘭Synchronized signals 同步信號Curved line 曲線Global Positioning System (GPS) （衛(wèi)星）全球定位系統(tǒng)Rudder angle indicator 舵角指示器Digital selective calling (DSC) 數(shù)字選擇呼叫Distress traffic 遇險通信Search and Rescue Transponder(SART) 搜救雷達應答器NAVTEX receiver 航警電傳接收器Emergency Position Indicating Radio Beacon (EPIRB) 應急示位標Azimuth 方位角；天體方位Transit bearings 串視方位；疊標方位Hyperbolic Positioning System 雙曲線定位系統(tǒng)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 光學儀器 Function: measure horizontal and vertical angles.2) Ships clocks: Words and phrases: local time 當?shù)貢r間/ regulate 調(diào)節(jié)，管理/ routine 常規(guī)/ internal 內(nèi)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 鐘表/ Greenwich Mean Time (GMT) 格林尼治標準時間Error 誤差/ verify 校正 / radio signal 無線電信號/ transmit 發(fā)送 Function: records the GMT.4) Binoculars:Words and phrases: distant object 遠處物體/ magnify 放大/ superior to 比好Telescope 望遠鏡 Function: see distant objects clearly.5) Magnetic compass: Words and phrases: permanent 永久的 / reliable 可靠的/ mount 安裝/ gimbal 常平環(huán)Binnacle 羅經(jīng)柜/ reflector unit 反射鏡/ project 投影Function: indicate direction 6) Gyrocompass: Words and phrases: principle of rigidity 定軸性原理/ spin 旋轉(zhuǎn)/recommend 推薦continuously 不斷地/ subsequently 隨后/ latitude 緯度/ repeater 分羅經(jīng)emergency 應急/ excessive 過度/ 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. 如果陀螺羅經(jīng)由于某種原因停止工作，在使用前必須重新啟動并作檢查以確保它已恢復正常，讀數(shù)正確。Function: indicate direction7) Azimuth mirror:Words and phrases: rim 環(huán)/ celestial and terrestrial 空中和陸地Function: show accurate bearings of celestial and terrestrial 8) The echo sounder:Words and phrases: pulse 脈沖/display 顯示/ chart 圖表 / pen recorder 筆尖記錄器 / outline 輪廓/ frequency 頻率 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. 收到的脈沖波通過筆尖記錄器顯示在圖表上，這樣航海者可以看到船舶所經(jīng)過海底的輪廓。Function: measure the depth of water under the ship and see the outline of the bottom9) Speed measurement equipment (Log):Words and phrases: log 計程儀Function: measure the speed of the vessel through water.10) Radar:Words and phrases: radio detection and ranging system 無線電探測和測距系統(tǒng)/ target 物標Radio beam 無線電射線/ rotating radar scanner 旋轉(zhuǎn)的雷達天線convert 轉(zhuǎn)換/ Trail 痕跡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 自動/ plot 標繪/ update 更新/ selected 所選的Function: automatic plotting and continuously updating information of selected targets. 12) Direction finder (DF):Words and phrases: direction finder 無線電測向系統(tǒng)/ radio receiver 無線電接收器Radio beacon 無線電信標/ position fixing 定位/ distressed ship 遇險船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 遠距離Function: for position fixing 14) Steering gear and autopilot: Words and phrases: OOW 值班駕駛員/ ensure 確保SOLAS= Convention on the Safety of Life at Sea 海上人命安全公約Observe 遵守/ comprise 包含/ manual steering 手動舵supplement 補充/ automatic pilot 自動舵emergency back-up steering position 應急備用操舵位steering gear flat 舵機平臺/ steering mode selector 操舵模式選擇器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. 如果裝有自動舵，操舵模式選擇器可以在自動舵和手動舵之間轉(zhuǎn)換，必須有人工操控（應急操舵）裝置以使值班駕駛員能在需要時立即對操舵進行立即的手動控制。Function: steer the course 15) Course recorder: Words and phrases: trace 航跡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 商業(yè)用戶/accuracy of the order 精確度Differential GPS 差分全球定位系統(tǒng)terrestrial monitoring station 地面監(jiān)聽站/ HF radio link 高頻無線電中斷站antenna 天線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. 全球衛(wèi)星導航系統(tǒng)是一種衛(wèi)星系統(tǒng)，它為裝有相應接收器的船舶提供獲取連續(xù)的、全球性的位置、時間及速度信息的手段。Function: global positioning 17) Sound signaling apparatus: Words and phrases: sound signaling apparatus 聲響信號器COLREGS=regulations for the Prevention of Collisions at Sea 海上避碰規(guī)則whistle 汽笛/ bell 鐘/gong 鑼Function: give sound signal 18) Navigation lights and other lights: Words and phrases: navigation light 航行燈/ anchor light 錨燈/ all round light 環(huán)照燈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 全球海上遇險和安全系統(tǒng)stipulate 規(guī)定/ VHF radiotelephone 甚高頻無線電話urgency traffic 緊急通信/ acknowledge 確認/ relay轉(zhuǎn)發(fā)distress alert遇險警報/homing signal 導航信號Function: operate GMDSS20) Alarms system on the bridge(smoke detector alarm/inert gas pressure alarm/navigational equipment alarm) :Words and phrases: alarm system 警報系統(tǒng)/ draw the attention吸引注意critical situation危急情況/ smoke detector 煙霧探測器 inert gas pressure alarm 惰氣壓力警報off course alarm 偏航警報器/ failure 故障/steering motor 舵機電動機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 轉(zhuǎn)速表/ revolution 轉(zhuǎn)數(shù)/ dial 刻度盤upright position 正浮位置/ wind vane 風向標 manoeuvring characteristics 操縱性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