《航海英语二三副》-Unit 1 Nautical Publications-Lesson 2 Admiralty Nautical Chart- edit

UseoftheChartTextASymbolsandAbbreviationsUsedonAdmiraltyChartTextBWarm-upVocabularyStudyFastReadingIntensiveReadingExercises

Warm-upActivitiesS1-MalaccaandSingaporeStraitsS2-PortofSIngaporeSample3-ChartofShediacHarbourSample4Sample5Trytoanswer:Q1.CanyoufigureoutthemaindifferencebetweenChart1andChart2?Q2.DoyouknowthesymbolsandabbreviationsshownonChart3?Ifyes,explainitsmeaning.Q3.CanyoutellthetypesofChart4andChart5?BackVocabularyStudyStepIStudythevocabularybystudentsthemselvesoringroups,usingelectronicdictionaryiestoassistpronounciationifnecessary.StepIIInviteamemberofeachgrouptoreadthevocabularyinclass,correctthefalsepronounciations.Termsandkeyexpressions:ENC(ElectronicNauticalChart)vectorchartrasterchartcablemagentalineinsertdeletesubstituteamendderivedchartdepthcontourblocksymbolabbreviationlow/highwaterspring/neaptidemud/clay/sand/coral/silt/pebble/gravel/cobbleobstructionInternationalChart1(INT1)fathomBackFastReadingTask1Assignstudents5-10minutestoreadthetextandtrytosummerizethemainidea.Task2Trytoanswerthequestionsbasedonthecontentofthetext.Q1.

Whatscaleofchartshouldbeusedwhennavigatingnearland?Q2.Arethedetailsoflargescalechartsameasthoseofsmallscalechartinnumber?Q3.Givesomeexamplesofcommandswhenupdatingcharts.BackIntensiveReadingTask1

Readthetextintensivelyandanswerrelevantquestionssoastofurtherunderstandit.Task2Discussingroupsandtrytoanalysetheimportantparagraphs.Membersinothergroupscangivesomesupplements.Task3

Analysethelongandcomplicatedsentenceswiththehelpofteacher.IntensiveReadingComprehension(

)Marinershouldalwaysusethesmallestscalechartapproriateforhispurpose.()Theamountofdetailshownonachartvarieswithitsscale.(

)Theinsertionofexcessivedetailnotonlycluttersthechart,butcanleadtoerrors.()TheAdmiraltyworld-widechartseriescomprisesmixtureofchartscompliledusingneitherprimarynorderivedsourcesandmethods.()Inchartcorrection,whereinformationisdisplacedforclarity,itsproperpositionshouldbeindicatedbyadotandwavyline.()Typingcorretionfluidsmaybeusedinchartcorrection.FTTFFFBackMainIdeasforEachParagraphPara.1Para.2Para.3Para.4Para.5Para.6Marinershouldalwaysusethelargestscalechartappropriateforhispurpose.Theamountofdetailshownonachartvarieswithitsscale.FunctionsofNoticescorrectingthecharts.ThecompositionofAdmiraltyworld-widechartseries.Thecommandsusedincorrectingcharts.Correctingmethodsiferasuresmustnotbemade.BackSentenceTranslationDiscussingroups,trytoanalysethestructureofeachsentenceandpayattentiontothekeytermsandexpressionsandthentranslateintoChinese.1.Theamountofdetailshwononachart

varieswithitsscale.显示在海图上的详情数量随海图比例尺变化而变化。2.Ifashorteneddescription

wouldresultin

ambiguitybetweenadjacentaids,detailshouldberetained.如果缩短描述可能导致无法辨清相邻助航设备，应保留相应详情。3.Asmallerrorinlayingdownaposition

maymeanonlyafewmetresonalargescalechart,whereas

onsmallscalethesameamountofdisplacementonthepapermaymeanseveralcables.在大比例尺海图上记录位置时出现的小误差可能只是几米，然而在小比例尺海图上偏离同样的数量可能意味着几链的距离。4.Alterationstodepthcontours,deletionofdepthstomakewayfordetail,etc,arenotmentioned

inNotices

unlessthyhavesomenavigtionalsignificance.除非具有航行重要性，否则水深的变化和因填入其他信息而删除的水深不会在航海通告中提及。5.Whereinformation

is

displacedforclarity,itsproperpositionshouldbeindicatedbyasmallcircleandarrow.当为了表意清晰更换信息时，其正确位置应用一个小圆圈和箭头来表示。ContentsForTextBExercisesIntensiveReadingFastReadingVocabulryStudyWarm-upFastReadingTask1Assignstudents5-10minutestoreadthetextandtrytosummerizethemainidea.Task2Trytoanswerthequestionsbasedonthecontentofthetext.Q1.

CanyougenerallydescribetheChart5011?Q2.Whatarethefunctionsofthecautionarynotesonchart?Q3.Canyoulistsomenatureoftheseabed?IntensiveReadingTask1

Readthetextintensivelyandanswerrelevantquestionssoastofurtherunderstandit.Task2Discussingroupsandtrytoanalysetheimportantparagraphs.Membersinothergroupscangivesomesupplements.Task3

Analysethelongandcomplicatedsentenceswiththehelpofteacher.IntensiveReadingComprehensionQ1.HowisChart5011updated?Q2.ListthemaincontentsofChart5011.Q3.WhatdoestheabbreviationMHW/MHWstandfor?Q4.WhatdoestheabbreviationCy/Clstandfor?Q5.Whatistherockwhichcoversanduncovers,heightabovechartdatum,whereknown?Q6.Whatinformationwillbeprintedinthepartsofachartwherethespacesareratherblank?MainIdeasforEachParagraphPara1.IntroductiononChart5011Para2.AbbreviationsontidesandcurrentsPara3.AbbreviationsonthenatureofseabedPara4.Illustrationsonrocks,wrecksandobstructionsPara5.IntroductiononNP5012Para6.CautionarynotesonchartSentenceAnalysis1.Pipelinesarenotalwaysburiedandmayeffectivelyreducethecharteddepthbyupto2metres.Theymayalsospanseabedundulationsandcausefishinggeartobecomeinrrecoverablysnagged,puttingavesselinseveredanger.海底管线不总是深埋的，它们可能会导致海图水深实际减少2米，蜿蜒于海床上也会勾缠渔具形成障碍。从而导致船舶处于危险之中。2.Submainesexercisefrequently,bothsurfacedanddived,intheareaindicated.Agoodlookoutistobekeptforthemwhenpassingthroughthesewaters.潜艇经常在途中标示的水域进行水面和水下演习。船舶经过这些水域时要保持良好瞭望。ExercisesPhrasesTranslationDiscusswithyourpartnerandtranslatethephrasesintoChinesebasedontheunderstandingofthetext.

symbolsandabbreviationsalphabeticindexmixedbottomheightdatumchartdatummeansealevelcautionarynotescongestedwatersseabedundulationsrockawash符号和缩写字母索引混合底质高程基准面海图基准面平均海平面警戒性注释拥挤水域跨越海床适淹礁MaketheBestChoiceDiscussingroupsanddecidethecorrectchoiceineachquestionbasedonthecomprehensionofthetext.Thenexplaineachquesitoninfrontoftheclass.1.____givesadescriptionofthesymbolsandabbreviationsusedonAdmiraltyPapercharts.AOceanPassagesfortheWorld(NP136)BSymbolsandAbbreviationsusedonAdmiraltyCharts,Chart5011CIALAMaritimeBuoyageSystem(NP735)DTheMarinersHandbook(NP100)B2.Whichchartabbreviationindicatesthebottomisclay?____AClyBClaCClDC3.Whichchartabbreviationindicatesthebottomisrock?____ARBRo