专题09 数词-小学语法精讲精练（附口诀、练习和答案）.docx

1、小学语法精讲精练 专题09 数词思考引入太棒了!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。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.这个嘛.那今天我们就一起来学习几组常用的情态动词。知识概览知识精讲一、基数词1.基数词的构成(1)基数词112,拼写形式各不同123456onetwothreefourfivesix789101112seveneightnineteneleventwelve(2)基数词1319,词尾加-teen(13,15和18拼写较特殊)13141516171819thirteenfourteenfifteensix tee

2、nseven teeneighteennineteen(3)基数词2099整十数基数词词尾加-ty(20,30,40,50和80拼写较特殊)ninetyeightyseventysixtyfiftyfortythirtytwenty9080706050403020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1

3、00999整百数基数词由“个位数基数词+hundred”构成100200300one hundredtwo hundredthree hundred400500600four hundredfive hundredsix hundred700800900seven hundredeight hundrednine hundred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101111one hundred and oneone hundred and eleven220656two hundred and tw

4、entysix hundred and fifty-six781999seven hundred and eighty-onenine hundred and ninety-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)one thousandten thousandone hundred thousand1,000,000(一百万)10,000,000(一千万)100,00

5、0,000(一亿)one millionten millionone hundred million1,000,000,000(十亿)one billion2.基数词的常见用法(1)表示数量There are nineteen boys in our class.我们班有十九个男生。(2)表示年龄She is fourteen years old.她十四岁。(3)表示时间Its six twenty-five now.现在是6点25分。It takes me ten minuets to walk there.我走到那里要花10分钟。Beijing held the Winter Olympi

6、cs in 2022.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：twenty twenty-two(4)表示价格 How much is this coat?这件外套多少钱?Its two hundred yuan.两百元。(5)表示号码My phone number is 150-7923-7406.我的电话号码是15079237406。I take bus No. 32 to school every day.我每天都坐32路公交车去上学。(6)表示计量He is 1.7 meters tall.他身高1.7米。It got do

7、wn to twenty-seven degrees last night.昨晚气温降到了27度。热身小练翻一翻。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.nine years old 2.twelve thirty-seven 3.one hundred and eighty-five yuan4. six hundred and one students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13,拼写形式各不同第1第2第3firstsecondthird(2)序数词419,在基数词后面加-th(第5,第8,第9和第12拼写

8、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20999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90sixtiethseventietheightiethninetie

9、th整百数序数词，直接在hundred后面加-th第100第200第300one hundredthtwo hundredththree hundredth第400第500第600four hundredthfive hundredthsix hundredth第700第800第900seven hundredtheight hundredthnine hundredth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-fourth 58第65第76第87第98sixty-fifths

10、eventy-sixtheighty-seventhninety-eighth第101第111one hundred and firstone hundred and eleventh第222第999two hundred and twenty-secondnine hundred and ninety-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 = 98thone hundredth = 100th2.序数

11、词的常见用法(1)表示顺序His second book is better than his first.他的第二本书比第一本好。Our reading room is on the third floor.我们的阅读室在三楼。(2)表示日期 When is Tree Planting Day?植树节是什么时候?Its on March 12th.3月12日。热身小练变一变。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, seco

12、nd, third 2.seventh, fifth, eighth 3.nineteenth, twenty-sixth, fiftieth知识精练一、单选题( )1Tom lives on the _ floor of this building. AnineBninthCnineth( )2There are _ months in a year. The _ month is December. Atwelve; twelveBtwelve; twelfthCtwelfth; twelfth( )3Therere _ months in a year. April is the _ m

13、onth of the year. Atwelve; thirdBtwelfth; fourCtwelve; fourth( )4In the morning, we have _ lessons and the _ lesson is Biology. Athree; threeBthird; threeCthird; thirdDthree; third( )5There are three _ students in our school. AthousandBthousandsChundreds( )6There are two birds here. I like the _ one

14、. AtwoBsecondCtwoth( )7It was my grandmas _ birthday. My mother _ her a gift. Athe ninetieth; gaveBthe ninetieth; givesCninetieth; gave( )8We must study _. ALesson FiveBlesson FiveCLesson five( )9The Changjiang River is more than six _ long. Athousand kilometresBthousands kilometreCthousands kilomet

15、res( )10March is the _ month (月) of the year. Tree Planting Day is _ March 12th. Athird; onBthree; atCfifth; in( )11This library has got about eight _ books. AmillionsBhundredsCthousand( )12Tuesday is my little brothers _ birthday. He is _. Afour; fourthBfive; fifthCfourth; fourDfourth; fourth( )13Y

16、ou can see three _ students on the playground. AthousandBthousandsCthousandsDthousandes( )14There are students in Lilys class. Shes the one. Afourty; twelveBforty; twelfthCforty; twelveDfourteenth; twelve( )15Jackie Chan has donated_ dollars to charity. He is an example to us all.AthousandBthousands

17、Cthousand ofDthousands of二、用单词正确形式填空16Its _ (twelve) of November. Its my mothers birthday.17Go along this street, turn left at the _ (two) traffics lights.18September is the _ (nine) month of the year.19There are ten _ (child) in this group. Nancy is the _ (five) to sing a song.20There are _ months

18、in a year. December is the _ (twelve) month.21I think the _ (two) story in the book is interesting.22Yuan Longping passed away on _ (twenty-two) of May. Many people _ (cry) sadly when they heard this news.23August is the _ (eight) month of a year.24Please turn to page _ (12) and look at the _ (3) pi

19、cture in this unit.25April is the _ (four) month of a year.答案：1B2B3C4D5A6B7C8A9A10A11C12C13A14B15D16the twelfth17second18ninth19children fifth20twelve twelfth21second22the twenty-second cried23eighth24twelve third25fourth记忆口诀基数词变序数词规律基变序，有规律；一、二、三，单独记，结尾是t,d,d;th从四起；八去t,九去e;ve要用f替；整十基数变序数，先把ty变成tie,再加th;要是遇到几十几，前用基数后用序。