《2022年小学英语数词讲解与练习.pdf》由会员分享,可在线阅读,更多相关《2022年小学英语数词讲解与练习.pdf(6页珍藏版)》请在淘文阁 - 分享文档赚钱的网站上搜索。
1、学习必备欢迎下载数词数词是表示数量多少或顺序先后的词。分为基数词和序数词。(一)基数词1. 表示数量多少的词是基数词,如:one, two, three等。2. 数词的构成1)从 112 分别由从 one到 twelve,12个各不相同的词表示。one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve 2)从 1319 均以后缀 -teen结尾。thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen 3)从 2090 的整十数
2、词均以后缀 -ty 结尾。表示 “ 几十几 ” 时,个位和十位之间需加连字符。twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety 21 twenty-one 32 thirty-two 43 forty-three 4)整百数由 19 加 hundred构成。100 one (a) hundred 500 five hundred 5) 整百数和整十数之间由and 连接,十位与个位之间要加连字符“ -” 。如果十位数为零,那就在百位和个位之间用and连接。101 one hundred and two 245 two hun
3、dred and forty- five 6)千 thousand 百万 million 十亿 billion Exercise: 写出下列数字12 14 20 40 90 19 400 600 35 78 305 678 2、 序数词序数词表示排列顺序,如first, second, third等。精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 1 页,共 6 页 - - - - - - - - - - 学习必备欢迎下载构成规则:1) 序数词第一、 第二和第三为 first, second和 third
4、,其他序数词的构成是在基数词后加 th。例如:six sixth seven seventh ten tenth four fourth2) fifth( 第五)、 eigth (第八)、 ninth (第九)和 twelfth ( 第十二 )在拼法上有变化。first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth3) 二十
5、、三十等基数词变为序数词时,要把 y 变成 ie 再加-th。例如:twenty twentieth fortyfortiethtwentieth, thirtieth, fortieth, fiftieth, sixtieth, seventieth, eightieth, ninetieth 4) 基数词几十几变成序数词时,表示几十的数词不变 ,只把表示几的基数词变成序数词。例如: twenty-one twenty -first forty-five forty -fifth5) 第一百、第一千、第一百万、 第十亿都是在基数词后直接加th 构成。例如:第一百 hundredth 第一千
6、thousandth第一百万 millionth第十亿billionth6).序数词的缩略形式是由阿拉伯数字加序数词的最后两个字母构成。例如: 1st, 2nd, 3rd, 4th, 21st, 32nd, 40th7) 序数词前必须加定冠词the The first time I came to China, I liked it very much. 我第一次来中国,我就非常喜欢这个国家。 The first is always better than the second.第一总是比第二好。 She will choose the third. 她将选择第三。Exercise: 把下列基
7、数词改成序数词。one two three five nine eight fourteen twenty thirty-five 3. 数词的应用1)时刻的表示法精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 2 页,共 6 页 - - - - - - - - - - 学习必备欢迎下载A、表示几点钟用基数词加可以省略的oclock 5:00 读作 five oclock 或 five B、半点的表示法表示半点钟时,用“钟点数+ thirty”或“ half+ past +钟点数”表示2: 30 two
8、thirty / half past two 8:30 eighty thirty / half past eighty C、“几点几分”的表示法(1)用“钟点数 +分钟数”表示7:10 seven ten 9:40 nine forty (2)分钟数在 30 分钟以内的,用“分钟数 + past +钟点数”表示,意为“几点过几分“7:10 ten past seven 10:15 fifteen past ten / a quarter past ten (3)分钟数超过 30 分钟的,用“( 60-分钟数) + to +下一个钟点数”表示,意为“差几分到几点”10:40 twenty to
9、 eleven 2 : 45 fifteen to three / a quarter to three Exercise: 用英语表示下列时间10: 05 8: 30 12:10 1:15 5:47 9:23 3:51 11:49 6:00 7:22 2) 编号的表示法编号既可以用序数词 ,也可用基数词。精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 3 页,共 6 页 - - - - - - - - - - 学习必备欢迎下载the tenth lesson Lesson Ten 第十课the fift
10、ieth page page 50第五十页有的编号习惯上常用基数词。例如:Room 321(读作 three two one) 321 号房间Tel.No.4013586(读作 Telephone number four 0 one three five eight six) 电话号码 40135863)年、月、日的表示法英语中表示日期的顺序通常为月日年或日月年。1、月、日的表示法“月”用英语中表示月份的名词,“日”用基数词或序数词表示都可以。7 月 8 日July 8(July eight) / July 8th ( July the eighth) 10 月 1 日 October 1 (
11、 October one) / October 1st ( October the first) 2、年的表示法1983nineteen eighty -three1700seventeen hundred1870eighteen seventy2008two thousand and eight 1601sixteen and one 或 sixteen hundred and one965nine sixty-five 3、年、月、日的表示法1986年 9 月 1日September 1st, 1986 / 1st September, 1986 2011年 8 月 8日August 8,
12、 2011 / 8th August, 2011 Exercise: 用英语表示下列日期11 月 1 号2 月 10 号精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 4 页,共 6 页 - - - - - - - - - - 学习必备欢迎下载5 月 22 号9 月 17 号10 月 3 号12 月 19 号四、课堂练习1)根据括号中的数字填写合适的序数词或基数词(写单词)。1、Bill is (14)years old , he is in Class (2)Grade (6). 2、My birthd
13、ay 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)单项选择( )1There are _ days in a year Athree hundred and sixty five Bthree hundred and sixty-five Cthree hundreds and sixty five Dthree hundre
14、ds and sixty five ( )2Danny lives in _Aroom 404 BRoom 404 C404 room D404 Room ( )3Jim is in _Aclass one ,grade six Bgrade one ,class six CClass One ,Grade Six DGrade One, Class Six ( )4The bike cost me _ yuan Afive hundred forty Bfive hundreds fourty Cfive hundred and forty Dfive hundred fourty ( )5
15、My telephone number is _ Aeighty eight two forty four zero nine Beight eight two double four O nine Ceighty eight two forty-four zero nine Deight eight two four four zero nine ( )6Is there any food for us _? Aten Btenth Cthe tenth Dthe ten ( )7Mary is _ girlA. an 8 year old B8一 years old Cthe 8 year
16、s old Dan 8一 yearold ( )8What day is today? _ AJune BTuesday CIt is hot DIt s fine( )9Whats the date today? _ AIt s Saturday BIt s July CIt s fineDIt s JuIy 15( )10What time do you get up every day? AIt s seven o clockBSeven o clock timeCAt seven DOn seven 精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载
17、名师归纳 - - - - - - - - - -第 5 页,共 6 页 - - - - - - - - - - 学习必备欢迎下载五 课后作业1There are _ days in a yearAthree hundred and sixty five B three hundred and sixty-five Cthree hundreds and sixty five D three hundreds and sixty five ( )2Danny lives in _Aroom 404 BRoom 404 C404 room D404 Room ( )3Jim is in _Acla
18、ss one ,grade six Bgrade one ,class six CClass One ,Grade Six DGrade One Class Six ( )4The bike cost me _ yuan Afive hundred forty Bfive hundreds fourty Cfive hundred and forty Dfive hundred fourty ( )5My telephone number is _ Aeighty eight two forty four zero nine Beight eight two double four O nin
19、e Ceighty eight two forty-four zero nine Deight eight two four four zero nine ( )6Is there any food for us _? Aten Btenth Cthe tenth Dthe ten ( )7Mary is _ girlA. an 8 year old B8 一 years old Cthe 8 years old D an 8一 yearold ( )8What day is today? _ AJune BTuesday CIt is hot DIt s fine( )9Whats the date today? _ AIt s Saturday BIt s July CIt s fine DIt s JuIy 15( )10What time do you get up every day? AIt s seven o clock BSeven o clock timeCAt seven DOn seven精品资料 - - - 欢迎下载 - - - - - - - - - - - 欢迎下载 名师归纳 - - - - - - - - - -第 6 页,共 6 页 - - - - - - - - - -
限制150内