小學(xué)英語(yǔ)數(shù)詞講解與練習(xí)題

1、學(xué)習(xí)必備歡送下載數(shù)詞專(zhuān)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1 12分別由從one到twelve , 12個(gè)各不相同的詞表示.one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve2從13-19均以后綴-teen結(jié)尾.thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen3從20 90的整十?dāng)?shù)詞均以后綴-

2、ty結(jié)尾.表示幾十幾時(shí),個(gè)位和十位之間需加連字符.twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety21 twenty-one 32 thirty-two43 forty-three4整百數(shù)由19加hundred構(gòu)成.100 one a hundred500 five hundred5整百數(shù)和整十?dāng)?shù)之間由and連接,十位與個(gè)位之間要加連字符-;如果十位數(shù)為零,那就在百位和個(gè)位之間用and連接.101 one hundred and two245 two hundred and forty- five6 1,000以上的數(shù),要

3、用計(jì)數(shù)逗點(diǎn),即從個(gè)位開(kāi)始,每隔三位數(shù)加一逗點(diǎn),第一個(gè)逗點(diǎn)處是thousand千,第二逗點(diǎn)處是 million百萬(wàn)例如：1, 000faonethousand4,596 four thousand five hundred and ninety-six10 , 000 ten thousand18,261 eighteen thousand two hundred and sixty-one100 , 000faonehundred thousand766,132 seven hundred and sixty-six thousand one hundred and thirty-twoExe

4、rcise:寫(xiě)出以下數(shù)字1214 20 4090 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)那么：學(xué)習(xí)必備歡送下載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：six t sixth seven t seventh ten t tenth four t fourth2 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

5、, seventh, eighth, ninth, tenth, twelfth, thirteenth,fourteenth; fifteenth, sixteenth; seventeenth, eighteenth, nineteenth3二十、三十等基數(shù)詞變?yōu)樾驍?shù)詞時(shí),要把y變成ie再加-th.例如：twenty-twentieth forty-fortiethtwentieth, thirtieth, fortieth, fiftieth, sixtieth, seventieth, eightieth, ninetieth4基數(shù)詞幾十幾變成序數(shù)詞時(shí),表示幾十的數(shù)詞不變,只把表示幾的

6、基數(shù)詞變成序數(shù)詞.例 如：twenty- one f twenty -first forty- five 一 fortyfifth5第一百、第一千、第一百萬(wàn)、第十億都是在基數(shù)詞后直接加th構(gòu)成.例如：第一百一 hundredth 第一千一齒虱3即世11第一百萬(wàn)一 millionth第十億t怵li口nth6.序數(shù)詞的縮略形式是由阿拉伯?dāng)?shù)字加序數(shù)詞的最后兩個(gè)字母構(gòu)成.例如：1st, 2nd, 3rd, 4th. 21st, 32nd, 40th7序數(shù)詞前必須加定冠詞theThe first time I came to China, I liked it very much.我第一次來(lái)中國(guó),我就非

7、常喜歡這個(gè)國(guó)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:把以下基數(shù)詞改成序數(shù)詞.one two three five nine eight fourteen twentythirty-five 三.數(shù)詞的應(yīng)用1時(shí)刻的表示法A、表示幾點(diǎn)鐘用基數(shù)詞加可以省略的o'clock 5:00 讀作 five o'clock 或 five學(xué)習(xí)必備歡送下載B、半點(diǎn)的表示法表示半點(diǎn)鐘時(shí),用鐘點(diǎn)數(shù)+ thirty或“half+ past +鐘點(diǎn)數(shù)表示2

8、: 30 two thirty / half past two8:30 eighty thirty / half past eightyC、幾點(diǎn)幾分的表示法(1)用鐘點(diǎn)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?xún)?nèi)的,用 分鐘數(shù)+ past +鐘點(diǎn)數(shù)表示,意為 幾點(diǎn)過(guò)幾分“7: 10 ten past seven10:15 fifteen past ten / a quarter past ten(3)分鐘數(shù)超過(guò)30分鐘的,用“(60-分鐘數(shù))+ to +下一個(gè)鐘點(diǎn)數(shù)表示,意為 差幾分到 幾點(diǎn)10:40 twenty to eleven

9、 2 : 45 fifteen to three / a quarter to threeExercise:用英語(yǔ)表示以下時(shí)間10: 05 8: 30 12:10 1:155:47 9:233:51 11:496:00 7:222)編號(hào)的表示法編號(hào)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(yè)有的編號(hào)習(xí)慣上常用基數(shù)詞.例如:學(xué)習(xí)必備歡送下載Room 321(讀作 three two one)321 號(hào)房間Tel.No.4013586(讀作 Telephone number four 0 one three five eight six) 號(hào)4013586遇到相

10、同的兩位數(shù)可用double,如22,可讀作double two.四、課堂練習(xí)1)根據(jù)括號(hào)中的數(shù)字填寫(xiě)適宜的序數(shù)詞或基數(shù)詞(寫(xiě)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) one ?5、There are (55 ) students in our class .2單項(xiàng)選擇()

11、1 . There are days inA . three hundred and sixty fiveC . three hundreds and sixty five()2 . Danny lives inA . room 404 B . Room 404a year .B . three hundred and sixty-fiveD . three hundreds and sixtyfiveC . 404 room D . 404 Room()3 . Jim is inA . class one , grade six B . grade one , class sixC . Cl

12、ass One , Grade Six D . Grade One, Class Six ()4 . The bike cost me yuan .A . five hundred forty B. five hundreds fourtyC . five hundred and forty D. five hundred fourty()5 .My telephone number isA . eighty eight two forty four zero nineB . eight eight two double four O nineC . eighty eight two fort

13、y-four zero nineD . eight eight two four four zero nine()6 . Is there any food for us?A . ten B. tenth C. the tenth D . the ten()7 . Mary is girl .A. an 8 year old B. 8 - years-oldC . the 8 years old D . an 8 - year old ()8 . What day is today? A. June B. Tuesday學(xué)習(xí)必備歡送下載C. It is hot D. It ' s fi

14、ne()9 . -What' s the date today?A. It ' s SaturdayB. It ' s JulyC. It ' s fineD. It ' s July 15()10 . What time do you get up every day?A. It ' s seven o ' clo(Bk. Seven o ' clock timeC . At sevenD. On seven五課后作業(yè)(1) .寫(xiě)出以下數(shù)字的英文表達(dá).1214 20 45 90 .600678 903115 227 1002 1

15、3204200 63152 .(2) .選擇填空1. Fifty plus 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-twoB. four hundreds fifty twoC. four hundred and fifty-two D. four hundreds and fifty-two3. December is and last month in a ye

16、ar.A.the twelveth B.twelve C.the twelfth D.twelfth4. The bike cost me yuan .A. five hundred forty B . five hundreds fourtyC. five hundred and forty D. five hundred fourty5. There are two people in the meeting room.A.hundred B.hundreds C.hundreds of D.hundred of6. What is five and eight?A.TwelveB.Thi

17、rteenC. FourteenD.Fifteen學(xué)習(xí)必備歡送下載7. There are months in a year.December is the month of the year.A.twelve; twelve B.twelve; twelfth C.twelfth; twelve D.twelve; twelveth8. What day is today? A. June B. Tuesday C . It is hot D. It ' s fine9. -What' s the date today? A. It ' s Saturday B. I

18、t ' s July C. It ' s fine D. It ' s JuIy 1510. . What time do you get up every day?A. It ' s seven o ' clockB . Seven o ' clock time C . At seven D. On seven11. I bought shoes 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 Second World War.A. a B. an C. the D. /13 .She can play and.A. the tennis, the guitar B. tennis, guitarC. the tennis, guitar D. tennis, the guitar1. .I can see moon and clouds in the sky.A. the, a B. a, a C. t