专题09 数词-小学语法精讲精练（附口诀、练习和答案）

小学语法小学语法精讲精练专题09数词思考引入思考引入 太棒了!我最喜欢情态动词了,因为的时候,谓语动词都是原形,不用变来变去的。太棒了!我最喜欢情态动词了,因为的时候,谓语动词都是原形,不用变来变去的。合哈哈!那你真的熟悉所有的情态动词吗?你搞清楚它们的用法和区别了吗?合哈哈!那你真的熟悉所有的情态动词吗?你搞清楚它们的用法和区别了吗?哎..哎这个嘛那那今天我们就一起来学习几组常用的情态动词。知识概览知识概览知识精讲知识精讲一、基数词1.基数词的构成(1)基数词1~12,拼写形式各不同123456onetwothreefourfivesix789101112seveneightnineteneleventwelve(2)基数词13～19,词尾加-teen(13,15和18拼写较特殊)13141516171819thirteenfourteenfifteensixteenseventeeneighteennineteen(3)基数词20～99①整十数基数词词尾加-ty(20,30,40,50和80拼写较特殊)ninetyeightyseventysixtyfiftyfortythirtytwenty9080706050403020②非整十数基数词由“整十数基数词+个位数基数词”构成，中间用“-”连接ninety-nineninety-eightninety-seveneighty-sixseventy-six9998978676sixty-fivefifty-fourforty-threethirty-twotwenty-one6554433221(4)基数词100～999①整百数基数词由“个位数基数词+hundred”构成100200300onehundredtwohundredthreehundred400500600fourhundredfivehundredsixhundred700800900sevenhundredeighthundredninehundred②非整百数基数词由“整百数基数词+整十数基数词+个位数基数词”构成，百位数和十位数之间用and连接，十位数和个位数之间用“-”连接101111onehundredandoneonehundredandeleven220656twohundredandtwentysixhundredandfifty-six781999sevenhundredandeighty-oneninehundredandninety-nine(5)基数词1000及以上，先将数字从右往左数，每三位数用“,”隔开。从右往左第一个逗号表示“千”读作thousand;第二个逗号表示“百万”读作million;第三个逗号表示“十亿”读作billion1000(一千)10,000(一万)100,000(十万)onethousandtenthousandonehundredthousand1,000,000(一百万)10,000,000(一千万)100,000,000(一亿)onemilliontenmilliononehundredmillion1,000,000,000(十亿)onebillion2.基数词的常见用法(1)表示数量Therearenineteenboysinourclass.我们班有十九个男生。(2)表示年龄Sheisfourteenyearsold.她十四岁。(3)表示时间It'ssixtwenty-fivenow.现在是6点25分。Ittakesmetenminuetstowalkthere.我走到那里要花10分钟。BeijingheldtheWinterOlympicsin2022.北京在2022年举办了冬奥会。基数词表示年份时，通常先读前面两位数，再读后面两位数。如：2022读作：twentytwenty-two(4)表示价格—Howmuchisthiscoat?这件外套多少钱?—It'stwohundredyuan.两百元。(5)表示号码Myphonenumberis150-7923-7406.我的电话号码ItakebusNo.32toschooleveryday.我每天都坐32路公交车去上学。(6)表示计量Heis1.7meterstall.他身高1.7米。Itgotdowntotwenty-sevendegreeslastnight.昨晚气温降到了27度。热身小练①翻一翻。请你翻译下列短语，数字用英文表示。9岁______________________12点37分______________________185元______________________601名学生______________________答案：1.nineyearsold2.twelvethirty-seven3.onehundredandeighty-fiveyuan4.sixhundredandonestudents二、序数词序数词是表示顺序的词。1.序数词的构成(1)序数词1~3,拼写形式各不同第1第2第3firstsecondthird(2)序数词4～19,在基数词后面加-th(第5,第8,第9和第12拼写较特殊)第4第5第6第7第8第9fourthfifthsixthseventheighthninth第10第11第12第13第14第15tentheleventhtwelfththirteenthfourteenthfifteenth第16第17第18第19sixteenthseventeentheighteenthnineteenth(3)序数词20～999①整十数序数词，将整十数基数词词尾的y变成i,再加-eth第20第30第40第50twentieththirtiethfortiethfiftieth第60第70第80第90sixtiethseventietheightiethninetieth②整百数序数词，直接在hundred后面加-th第100第200第300onehundredthtwohundredththreehundredth第400第500第600fourhundredthfivehundredthsixhundredth第700第800第900sevenhundredtheighthundredthninehundredth③非整十数和非整百数序数词，将基数词的个位数变为序数词第21第32第43第54twenty-firstthirty-secondforty-thirdfifty-fourth58第65第76第87第98sixty-fifthseventy-sixtheighty-seventhninety-eighth第101第111onehundredandfirstonehundredandeleventh第222第999twohundredandtwenty-secondninehundredandninety-ninth序数词是可以缩写的，其缩写形式为“阿拉伯数字+序数词的最后两位字母”。如：first=1stthirty-second=32ndforty-third=43rdfifth=5thninety-eighth=98thonehundredth=100th2.序数词的常见用法(1)表示顺序Hissecondbookisbetterthanhisfirst.他的第二本书比第一本好。Ourreadingroomisonthethirdfloor.我们的阅读室在三楼。(2)表示日期—WhenisTreePlantingDay?植树节是什么时候?—It'sonMarch12th.3月12日。热身小练②变一变。请你将下列基数词变成序数词。1.one,two,three序数词：______________________2.seven,five,eight序数词：______________________3.nineteen,twenty-six,fifty序数词：______________________答案：1.first,second,third2.seventh,fifth,eighth3.nineteenth,twenty-sixth,fiftieth知识精练知识精练一、单选题()1．Tomlivesonthe________floorofthisbuilding.A．nine B．ninth C．nineth()2．Thereare_________monthsinayear.The_________monthisDecember.A．twelve;twelve B．twelve;twelfth C．twelfth;twelfth()3．There’re_________monthsinayear.Aprilisthe_________monthoftheyear.A．twelve;third B．twelfth;four C．twelve;fourth()4．Inthemorning,wehave______lessonsandthe______lessonisBiology.A．three;three B．third;three C．third;third D．three;third()5．Therearethree_________studentsinourschool.A．thousand B．thousands C．hundreds()6．Therearetwobirdshere.Ilikethe_______one.A．two B．second C．twoth()7．Itwasmygrandma’s_____birthday.Mymother_____heragift.A．theninetieth;gave B．theninetieth;gives C．ninetieth;gave()8．Wemuststudy_______.A．LessonFive B．lessonFive C．Lessonfive()9．TheChangjiangRiverismorethansix_________long.A．thousandkilometresB．thousandskilometreC．thousandskilometres()10．Marchisthe________month(月)oftheyear.TreePlantingDayis________March12th.A．third;on B．three;at C．fifth;in()11．Thislibraryhasgotabouteight_____books.A．millions B．hundreds C．thousand()12．Tuesdayismylittlebrother's______birthday.Heis______.A．four;fourth B．five;fifth C．fourth;four D．fourth;fourth()13．Youcanseethree_________studentsontheplayground.A．thousand B．thousands C．thousands’ D．thousandes()14．TherearestudentsinLily’sclass.She’stheone.A．fourty;twelve B．forty;twelfthC．forty;twelve D．fourteenth;twelve()15．—JackieChanhasdonated_________dollarstocharity.—Heisanexampletousall.A．thousand B．thousands C．thousandof D．thousandsof二、用单词正确形式填空16．It’s_____(twelve)ofNovember.It’smymother’sbirthday.17．Goalongthisstreet,turnleftatthe_____(two)trafficslights.18．Septemberisthe____(nine)monthoftheyear.19．Thereareten____(child)inthisgroup.Nancyisthe____(five)tosingasong.20．Thereare____monthsinayear.Decemberisthe____(twelve)month.21．Ithinkthe_________(two)storyinthebookis