初中英语中考专题复习课件：数词

2023REPORTINGSpecial ReviewCoursewareforMiddle SchoolEnglis2023•Basic knowledgeof numerals•The Usageof Numerals目录•Special usageof numerals•Analysis ofErrors inNumeralsCATALOGUE•Practice andconsolidation2023REPORTINGPART01Basic knowledgeofnumeralsDefinition andclassificationDefinitionNumerals arethe numbersused in arithmeticoperations,such as addition,subtraction,multiplication,and division.ClassificationNumerals can be classifiedinto cardinalnumeralsindicating quantityand ordinalnumerals indicatingorder.The roleof numeralsin sentencesCountingOrderingNumerals canbe usedto countNumerals canbe usedto indicateobjectsor events,such asThere order,such asThe firstprize,theare5apples onthe table.second prize,and thethird prize.MeasurementNumerals canbe usedto measureobjectsor events,such asThebook is20cm long.The WritingRules ofNumeralsUnits:When writingnumerals,the PluralForms:When writingHyphens:When writingfractionsappropriate unitsshould be used.numerals forplural forms,the ormulti-digit numerals,hyphensFor example,1year should be appropriatesuffixes should be shouldbeusedto separatethewritten asone year,not1year.used.For example,2apples whole number fromthe decimalshouldbe written as twopoint orto separatedigits.Forapples,not2apples.example,3/4shouldbe writtenas three-fourths,and1500shouldbewritten asonethousand fivehundred.2023REPORTINGPART02The UsageofNumeralsThe Usageof CardinalNumbersCardinal numbersare usedto They are alsoused indates,count objectsor people.phone numbers,and othersequencesof numbers.Common examplesinclude one,In English,cardinal numbersaretwo,three,and soon.usually writtenin figuresorspelled out.The Usageof OrdinalNumbersOrdinal numbersare usedto showorder orposition.They areusually written with asuffix,such asth e.g.,first,second,third.Ordinal numbersare alsoused indates e.g.,1st Januaryand in addressese.g.,2nd Floor.The expressionof scoresScorescanbeexpressed For example,a scoreof10In somecases,scores mayusingcardinal numbersor canbewrittenas tenor berounded tothe nearestordinals.10th.wholenumberor decimalplace.The expressionof decimalsDecimalsare usedto expressThey arewrittenwitha Commonexamples includefractionsor partialamounts.decimal pointfollowed by

0.5half,

0.25quarter,andthe remainingdigits.

0.75three-quarters.The expressionof percentagePercentagesare usedto expressForexample,25%means25partspart ofa wholeasaproportion.out of

100.Theyarewrittenasa numberfollowedby thesymbol%.2023REPORTINGPART03Special usageofnumeralsThe expressionof multiples表达分数英语中表达分数时，分子用基数词，表达倍数分母用序数词，例如one third，two fifths在英语中，表达倍数时通常使用times或fold等词，例如fivetimes asmany as，twice thesizeof表达小数英语中小数的表达方式是先说整数部分，然后是point，最后是小数部分，例如

3.14The expressionof time时间段的表达英语中表达时间段时，通常使用介词in，after，before，between，during，例如inthe morning，after lunch时间点的表达时间点的表达通常使用介词at，例如at3oclockThe expressionof year表达年代英语中表达年代时，通常使用基数词，例如the1990s表达世纪世纪可以用基数词表示，例如the21st centuryExpressionof address地址的顺序在英语中，地址的顺序通常是从小到大，例如street number，city，state，country地址中常用词汇在英语中，地址中常用的词汇包括street，avenue，lane，housingcomplex，apartment，suite2023REPORTINGPART04Analysis ofErrors inNumeralsConfusionbetween Cardinaland OrdinalNumbers总结词学生在处理基数和序数时容易混淆，需要明确两者的概念和用法详细描述基数表示数量，如three apples，而序数表示顺序，如third inline学生常常将序数误用作基数或将基数误用作序数，如将first day错误地翻译为onedayMisuse offractions总结词学生对分数的理解和使用存在误区，需要加强对分数概念的掌握详细描述学生常常在处理分数时出现错误，如将one third错误地表示为threeone，或者在比较分数大小时出错，如认为two thirds大于one halfConfusionbetween decimals,percentages,anddecimal systems总结词学生对于小数、百分数和小数系统的概念和转换存在混淆详细描述学生常常将小数和百分数混淆，如将

0.75错误地表示为seventy-five percent，或者在处理小数和百分数之间的转换时出错，如无法正确地将75%转换为小数形式Misuse ofmultiples总结词学生对倍数的理解和使用存在误区，需要加强对倍数概念的掌握详细描述学生常常在处理倍数时出现错误，如将three timesas much错误地表示为three times，或者在比较倍数大小时出错，如认为five times大于three times2023REPORTINGPART05Practice andconsolidationBasicexercise questions

1.0Counting from

3.0Multiplying1to100and dividingby10,100,

10002.0S im pl ead di ti onan dsubtractionImproveexercise questions

1.0Using decimalsand

2.0Solving problemswith

3.0Handling largenumbersfractions incalculations morethan oneoperation over1000Comprehensive exercisequestions

1.0Combining differentoperations

2.0Solving problemsthat require

3.0Handling decimals,fractions,inasingle problemmental mathand mixednumbers inthe sameproblem2023REPORTINGTHANKS感谢观看。