五年级下册英语 基数词和序数词

FifthGradeSecondVolumeEnglishCardinalandOrdinalNumbers汇报人：2023-12-13REPORTING2023WORKSUMMARY目录CATALOGUEBasicknowledgeofCardinalsBasicknowledgeofordinalnumConversionrulesbetweencardsTheApplicationofCardinalanPracticeandconsolidationSummaryandReviewPART01BasicknowledgeofCardinalsCardinalnumbersThesearethenumbersthatcanbeusedtocountobjectsoreventsForexample,"one","two","three",etcClassificationCardinalnumbersareclassifiedintotwocategories-naturalnumbers(0,1,2,3,...)andwholenumbers(0,±1,±2,±3,...)DefinitionandclassificationCardinalnumbersareformedbyaddingsuffixestothestemsofthenumbersForexample,"one"isformedbyadding"-one"tothestem"uni-"FormatTherearesomerulesthatneedtobefollowedwhileformingcardinalsForexample,thestemofthenumerical"two"is"duo-",but"two"isformedbyadding"-two"toit.Similarly,"three"isformedbyadding"-three"tothestem"tri-"RulesTherulesfortheformationofCounting01CardinalnumbersareusedtocountobjectsoreventsForexample,"Ihavetwoapples"or"Therearethreedogsinthepark"Quantification02CardinalnumbersarealsousedtoquantifyotherthingsForexample,"Ihavethreedaystocompletethisproject"or"Therearefivepeopleinthegroup"Comparisons03CardinalnumberscanbeusedtocomparethingsForexample,"Shehasmoreapplesthanme"or"Hehasfeltdaystocompletetheproject"TheUsageofCardinalNumbersPART02BasicknowledgeofordinalnumDefinitionOrdinalwordsarenumbersthatrepresentorder,suchasfirst,second,third,etc.ClassificationAccordingtotheircomposition,ordinalwordscanbedividedintotwocategories:cardinals+th,suchasfourthandfifth;Specialforms,suchasfirst,second,third,etc.DefinitionandclassificationRule:Mostcardinals+thcanformcorrespondingordinalwords,suchasfour+th=fourth;Specialsituationsrequirespecialmemory,suchasonefirst,twosecond,threethird,etc.TherulesfortheformationofVSOrdinalwordscanserveassubjects,objects,predicate,etc.inasentence,indicatingthearrangementandpositionofsomethingintermsofquantity,order,etc.AttentionWhenusingordinalwords,itisimportanttoavoidconfusionwithcardinals.Forexample,secondisanordinalword,butsecondsisapluralcardinalityword;Inaddition,ordinalwordsusuallyhavethedefinitearticlebeforethem.UsageTheUsageofOrdinalNumbersPART03ConversionrulesbetweencardsRulesforconvertingCardinalnumberstoordinalnumbersStartfrom1andcountthenumberofdigitsinthegivennumberAddthenumberofdigitstothenumberitselfIftheresultingnumberendswitha1,2,or3,add"th"totheendIftheresultnumberendswitha5,add"rd"totheendIftheresultnumberendswitha6,7,8,or9,add"st"totheendIftheresultnumberendswitha4,add"nd"totheendRemovethefinal"th","nd","rd",or"st"fromthegivenordinalnumberCountthenumberofdigitsremainingafterremovingthefinal"th","nd","rd",or"st"SubtractthenumberofdigitsfromtheoriginalordinalnumberIftheresultingnumberisasingledigit,addthatdigittotheoriginalordinalnumberIftheresultingnumberisnotasingledigit,convertittoatwodigitnumberbyaddingaleadingzeroandthenaddthattwodigitnumbertotheoriginalordinalnumber0102030405RulesforconvertingordinalnumberstoCardinalnumbersPART04TheApplicationofCardinalanCardinalnumbersareusedtocountobjectsorevents,suchas"Ihave3apples"or"Thereare5childrenintheroom."Cardinalnumberscanbeusedtosequenceeventsoritems,suchas"First,weneedtodothis.Then,wedothat."ApplicationinDigitalExpressionSequencingCountingCardinalnumbersareusedtoexpressdatesinnumericalformat,suchas"TodayisMay15th,2023."DateFormatCardinalnumberscanbeusedtoexpresstimeofday,suchas"It's3O'clockintheafternoon."TimeofDayApplicationinDateExpressionPositionDescriptionCardinalnumberscanbeusedtorepresentpositionsorlocations,suchas"Thecarisinthethirdparkingspacefromtheleft."SequentialPositionOrdinalnumberscanbeusedtorepresentsequentialpositions,suchas"Sheisthesecondchildinherfamily."ApplicationinPositionalRepresentationPART05PracticeandconsolidationMatchthefollowingnumberswiththeircorrespondingEnglishwordsCardinalwordexercisequestionzero0One1Two2Cardinalwordexercisequestion4Four5Five3ThreeCardinalwordexercisequestion6789Cardinalwordexercisequestion01020304SixSevenEightNineWritethefollowingnumbersinEnglishExercisesonordinalwords033rdThird011stFirst022ndsecondExercisesonordinalwords4th:Fourth5th:fifth6th:6thExercisesonordinalwords7thSeventh8thheight9thninthExercisesonordinalwordsWhatistheEnglishwordforthenumber10?Whatisthesecondwordafter"first"inEnglish?Howdoyouwrite"twice"inEnglish?3.AnswerthefollowingquestionsHowdoyousay"ninth"inEnglish?Whatisthewordfor"eleven"inEnglish?010203040506ComprehensiveexercisequestionPART06SummaryandReviewOrdinalnumbersThelessalsocoveredordinalnumbers,whichareusedtodescribethepositionorrankofanumberinasequenceNumericaloperationsBasicnumericaloperationssuchasaddition,subtraction,multiplication,anddivisionwerereviewedCardinalnumbersThelessreviewedtheconceptofCardinalnumbers,includingcounting,comparing,andorderingnumbersKeyreviewofthislessUnderstandingofconc