《时间的英文表达法》课件

PowerPointpresentationontheEnglishexpressionREPORTING目录Thebasicunitoftime24hourand12hoursystemsTheexpressionoftimeTimeconversionNotesonTimeExpressionPART01ThebasicunitoftimeREPORTINGSecondDefinition:ThesecondisthebasicunitoftimeintheInternationalSystemofUnits(SI)Itisdefinedastheperiodof9192631770periodsoftheradiationrespondingtothetransitionbetweenthetwohyperfinelevelsofthegroundstateofthecesium-133atomUseindailylife:Indailylife,secondsareusedinvariouscontexts,suchascooking,sports,andscientificexperimentsForexample,incooking,precisiontimingisessentialforbaggingormakingsoupsInsports,suchasswimmingorrunning,secondscanmakethedifferencebetweenwinningandlosingImportance:Thesecondisacriticalunitinmanyfields,includingscience,technology,andengineeringItprovidesaconsistentandcorrelatedwaytomeasuretime,makingitpossibletocompareandsynchronizeeventsacrossdifferentlocationsandsituationsMinuteDefinition:Theminuteisaunitoftimeequalto60secondsItisderivedfromtheLatinword"minute,"meaningsmallpartorminuteUseindailylife:Indailylife,minutesareusedforvariouspurposes,suchascooking,transportation,andworkForexample,whencookingameal,precisiontimingisessentialtoensurethatfoodiscookedproperlyIntransportation,knowingtheestimatedtimeofarrivalordepartmentisessentialforplanningpurposesImportance:Theminuteisafundamentalunitinmanycontexts,includingbusiness,education,andentertainmentItprovidesapracticalwaytomeasuretimeintervalsandallowsformoreprecisionplanningandcoordinationofactivitiesHourDefinition:Thehourisaunitoftimeequalto60minutesItisderivedfromtheOldEnglishword"hw"ī,"Measuringaspaceoftimeorsea."Useindailylife:Indailylife,hoursareusedforvariouspurposes,suchasschedulingmeetings,workinghours,andsleepcyclesForexample,mostworkplaceshavestandardhoursforwhenemployeesshouldbeatworkAdditionally,manypeopleaimtogeteighthoursofsleeppernightforoptimalhealthandwellbeingImportance:Thehourisacriticalunitinmanyfields,includingbusiness,education,andpersonallifeItprovidesapracticalwaytostructuredailyactivitiesandallowsformoreeffectiveuseoftimeThehouralsoservesasabasisforlargertimemeasurements,suchasdaysandweeksPART0224hourand12hoursystemsREPORTING24hoursystemisatimesystemthatusesa24hourclocktomeasuretimeItisusedinmostpartsoftheworld,includingmostcountriesinEurope,Asia,Africa,andAustraliaThetimeismeasuredfrom00:00to23:59The24hoursystemisalsousedinmilitaryandaviation24hoursystemThe12-hoursystemisatimesystemthatusesa12-hourclocktomeasuretimeThetimeismeasuredfrom01:00to12:59ItisusedintheUnitedStates,Canada,andsomeothercountriesThe12-hoursystemusesAMandPMtoindicatewhenthetimeisbeforeorafternoon0102030412-hoursystemPART03TheexpressionoftimeREPORTINGSummaryThedirectexpressionmethodinvolvesstatingthetimeinastraightforwardManner,withoutanyqualifiersormodifiersExample"Themeetingstartsat3PM."DescriptionThismethodisoftenusedwhenprovidingspecificorexacttimes,suchasappointmentsorscheduledeventsItisdirectandtothepoint,makingiteasytounderstandDirectexpressionmethodPreliminaryexpressionmethodThismethodismorecommonincaseorlessformalsettingsItprovidesabitmoreflexibilityinexpressingtime,allowingformorecolloquiallanguageDescriptionThepreliminaryexpressionmethodusesproposalslike"at,""on,""in,"etc.,toindicatethetimeSummary"Iwillmeetyouat5intheevent."ExampleSummary01TheabbreviationexpressionmethodusescommontimeabbreviationtoconsiderthetimeofaneventExample02"Themoviestartsat7:30."Description03Thismethodisoftenusedwhenbrevityisdesired,suchasintextmessagesorwhenwritingonsocialmediaItiscustomaryandeffective,butcanbeaggressiveifnotusedcorrectlyAbbreviationexpressionmethodPART04TimeconversionREPORTING24hourformat12-hourformat24hourformat12-hourformatSwitchingfrom24hourto12hourformat0102030413:00PM1:00PM21:30PM9:30PM10:00AM12-hourformat10:0024hourformat5:30PM12-hourformat17:3024hourformatSwitchingfrom12hourclockto24hourclockPART05NotesonTimeExpressionREPORTINGInEnglish,thetimeisusuallyexpressedintheorderofhours,minutes,andsecondsForexample,"10:30:05"means10hours,30minutes,and5secondsItisimportanttousethecorrectorderandnotfusetheunitsAvoidingmixinguphours,minutes,andsecondsTheterms"a.m."and"p.m."standfor"antemeridium"and"postmeridium,"respectivelyThemorninghoursareexpressedas"a.m."andtheafternoonhoursas"p.m."ItisessentialtousethesetermscorrectlytoavoidanyfusionUse"a.m."and"p.m."correctlyAveragefusingtimeunitsPayattentiontotheformatoftimeexpressionInEnglish,thetimeisseparatedbycolonsForinstance,"10:30:05"showsthatitis10hours,30minutes,and5secondsMakesuretousecolorsandnotanyotherpunctuationmarksUseacolontoseparatehours,minutes,andsecondsWhenexpressingtime,itisimportanttowriteoutthedigitsforminutesandsecondsForinstance,itshouldbewrittenas"10:30:05"insteadof"10:30:5"WritingoutthedigitsforminutesandsecondsmakesthetimeexpressionclearerandeasiertounderstandWriteouttheminuteandseconddigitsPayattentiontothecontextoftime