小學英語數(shù)詞講解與練習題6頁

1、 數(shù)詞專練數(shù)詞是表示數(shù)量多少或順序先后的詞。分為基數(shù)詞和序數(shù)詞。一. 基數(shù)詞1. 表示數(shù)量多少的詞是基數(shù)詞，如：one, two, three等。2. 數(shù)詞的構(gòu)成1）從112分別由從one到twelve，12個各不相同的詞表示。one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve2）從1319均以后綴-teen結(jié)尾。thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen3）從2090的整十數(shù)詞均以后綴-ty結(jié)尾。表示“幾十

2、幾”時，個位和十位之間需加連字符。twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety21 twenty-one 32 thirty-two 43 forty-three4）整百數(shù)由19加hundred構(gòu)成。100 one (a) hundred 500 five hundred5) 整百數(shù)和整十數(shù)之間由and連接，十位與個位之間要加連字符“-”。如果十位數(shù)為零，那就在百位和個位之間用and連接。101 one hundred and two 245 two hundred and forty- five6）1,000以上的數(shù)

3、，要用計數(shù)逗點，即從個位開始，每隔三位數(shù)加一逗點，第一個逗點處是thousand(千)，第二逗點處是million(百萬) 例如： 1，000a(one)thousand 4,596four thousand five hundred and ninety-six 10，000ten thousand 18,261eighteen thousand two hundred and sixty-one 100，000a(one)hundr

4、ed thousand 766,132seven hundred and sixty-six thousand one hundred and thirty-twoExercise:寫出下列數(shù)字12 14 20 40 90 19 400 600 35 78 305 678 二、 序數(shù)詞序數(shù)詞表示排列順序，如first, second, third等。構(gòu)成規(guī)則：1) 序數(shù)詞第一、第二和第三為first, second和third,其他序數(shù)詞的構(gòu)成是在基數(shù)詞后加th。例如：   

5、  six sixth seven seventh ten tenth four fourth 2) fifth(第五)、 eigth (第八)、 ninth (第九)和twelfth (第十二)在拼法上有變化。first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth 3) 二十、三十等基數(shù)詞變?yōu)樾驍?shù)詞時

6、,要把y變成ie再加-th。例如： twentytwentiethfortyfortieth    twentieth, thirtieth, fortieth, fiftieth, sixtieth, seventieth, eightieth, ninetieth4) 基數(shù)詞幾十幾變成序數(shù)詞時,表示幾十的數(shù)詞不變,只把表示幾的基數(shù)詞變成序數(shù)詞。例如：     twenty-one twenty-first   forty-five forty-fifth 5) 第一百、第一千、第一百萬、第十

7、億都是在基數(shù)詞后直接加th構(gòu)成。例如：第一百hundredth  第一千thousandth第一百萬millionth  第十億billionth 6）.序數(shù)詞的縮略形式是由阿拉伯數(shù)字加序數(shù)詞的最后兩個字母構(gòu)成。例如：     1st, 2nd, 3rd, 4th, 21st, 32nd, 40th 7) 序數(shù)詞前必須加定冠詞the    The first time I came to China, I liked it very much.   

8、60; 我第一次來中國，我就非常喜歡這個國家。     The first is always better than the second.第一總是比第二好。 She will choose the third. 她將選擇第三。 Exercise:把下列基數(shù)詞改成序數(shù)詞。one two three five nine eight fourteen twenty thirty-five 三. 數(shù)詞的應(yīng)用1）時刻的表示法A、表示幾點鐘用基數(shù)詞加可以省略的o'clock 5:00 讀作 five o'clock 或 fiveB、半點

9、的表示法表示半點鐘時，用“鐘點數(shù)+ thirty”或“half+ past +鐘點數(shù)”表示2: 30 two thirty / half past two8:30 eighty thirty / half past eightyC、“幾點幾分”的表示法（1）用“鐘點數(shù)+分鐘數(shù)”表示7：10 seven ten 9：40 nine forty（2）分鐘數(shù)在30分鐘以內(nèi)的，用“分鐘數(shù)+ past +鐘點數(shù)”表示，意為“幾點過幾分“7：10 ten past seven 10:15 fifteen past ten / a quarter past ten（3）分鐘數(shù)超過30分鐘的，用“（60-分鐘

10、數(shù)）+ to +下一個鐘點數(shù)”表示，意為“差幾分到幾點”10:40 twenty to eleven 2 : 45 fifteen to three / a quarter to threeExercise: 用英語表示下列時間10: 05 8: 30 12:10 1:15 5:47 9:23 3:51 11:49 6:00 7:22 2) 編號的表示法 編號既可以用序數(shù)詞,也可用基數(shù)詞。Lesson Ten 第十課 page 50第五十頁有的編號習慣上常用基數(shù)詞。例如： Room 321(讀作three two one) 321號房間 Tel.No.4013586(讀作Teleph

11、one number four 0 one three five eight six) 電話號碼4013586遇到相同的兩位數(shù)可用double,如22,可讀作double two.四、課堂練習1）根據(jù)括號中的數(shù)字填寫合適的序數(shù)詞或基數(shù)詞（寫單詞）。1、Bill is （14）years old , he is in Class （2）Grade （6）.2、My birthday is on the （3）of March .3、September is the （9）month in a year .4、Which boy is thinner , the （1）one or the （2）

12、one ?5、There are （55）students in our class .2）單項選擇(    )1There are _ days in a year      Athree hundred and sixty five  Bthree hundred and sixty-five      Cthree hundreds and sixty five   Dthree hundreds and sixtyfive(&#

13、160;   )2Danny lives in _      Aroom 404    BRoom 404     C404 room    D404 Room(    )3Jim is in _      Aclass one，grade six      Bgrade one，class six

14、      CClass One，Grade Six      DGrade One, Class Six(    )4The bike cost me _ yuan      Afive hundred forty        Bfive hundreds fourty      Cfive h

15、undred and forty    Dfive hundred fourty(    )5My telephone number is _      Aeighty eight two forty four zero nine      Beight eight two double four O nine      Ceighty eight two forty-four zero

16、 nine      Deight eight two four four zero nine(    )6Is there any food for us _?      Aten        Btenth      Cthe tenth    Dthe ten(    )7Mary

17、is _ girl      A. an 8 year old   B8一yearsold        Cthe 8 years old      Dan 8一yearold(    )8What day is today?   _      AJune     BTuesda

18、y   CIt is hot     DIts fine(    )9Whats the date today?   _      AIts Saturday  BIts July  CIts fine   DIts JuIy 15(    )10What time do you get up every day?    

19、60; AIts seven oclock    BSeven oclock time      CAt seven              DOn seven五 課后作業(yè)（一）. 寫出下列數(shù)字的英文表達。12 14 20 45 90 . 600 678 903 115 227 1002 1320 4200 63152 .(二)選擇填空1. Fifty plus  

20、    . A. fourty is ninety    B. forty is ninety C. thirty is ninety      D. fifty is ninety2.There are     students in this school. A. four hundred fifty-two B. four hundreds fifty twoC. four hundred and fifty-two D. fou

21、r hundreds and fifty-two3December is     and last month in a year. A.the twelveth      B.twelve     C.the twelfth     D.twelfth4The bike cost me _ yuanAfive hundred forty Bfive hundreds fourtyCfive hundred and forty

22、 Dfive hundred fourty5There are two _people in the meeting room.A.hundred B.hundreds  C.hundreds of D.hundred of 6What is five and eight? A.Twelve B.Thirteen C. Fourteen D.Fifteen 7There are _months in a year.December is the _month of the year.A.twelve; twelve B.twelve; twelfth  C.twelfth;

23、 twelve D.twelve; twelveth8What day is today? _AJune BTuesday CIt is hot DIts fine9Whats the date today? _AIts Saturday BIts July CIts fine DIts JuIy 1510What time do you get up every day?AIts seven oclock BSeven oclock time CAt seven DOn seven11.I bought        sh

24、oes yesterday.         shoes are very beautiful.A. a, The      B. a pair of, The     C. the, The       D. a pair, The pair12.He was        soldier in the S

25、econd World War.   A. a   B. an    C. the    D. /13.She can play        and         .A. the tennis, the guitar   B. tennis, guitar   C. the tennis, guitar    D. tennis, the guitar14.I can see        moon and         clouds in the sk