基数词序数词的表达和用法ppt课件.ppt

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1、数词数词Numerals表示数目多少或顺序多少的词叫表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。数词，数词分为基数词和序数词。表示数目多少的数词叫表示数目多少的数词叫基数词基数词；表；表示顺序的数词叫示顺序的数词叫序数词序数词。2 1 基数词（基数词（ cardinal number）1 one2 two 3 three4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten111213141516171819 eleven twelve thirteen fourteen fifteen sixteen seventeen eighte

2、en nineteen2030405060708090100 twenty thirty forty fifty sixty seventy eighty ninetyone hundred 基数词的构成基数词的构成1）112, 独立成词。独立成词。 one two three four five six seven eight nine ten eleven twelve2）13-19, 由由39 + teen构成。构成。 14fourteen 16-sixteen 17-seventeen 19nineteen 特殊拼写特殊拼写: 13 thirteen 15-fifteen 18eigh

3、teen 3）2090, 以以-ty结尾。结尾。 20twenty 30-thirty 40forty 50fifty 60-sixty 70-seventy 80-eighty 90ninety 4）2199， 两位数，十位与个位之间有两位数，十位与个位之间有 “-”。 21 twenty one 55 fifty-five 99 ninety-nine5）101999，三位数，百位与十位，三位数，百位与十位/个位之间加个位之间加and。 101 one hundred and one 840 eight hundred and forty 693 six hundred and ninet

4、y-three 5297and基数词基数词的构成的构成6 twenty-nine729 seven 035and再来一个7 three503 five 基数词基数词的构成的构成8 109432170865作业作业339126203451704178926854703151309326703651307428注：注： 1、1000以上几个的词，每三位数加以上几个的词，每三位数加一个逗号，第一个逗号前的数为一个逗号，第一个逗号前的数为thousand，第二个逗号前的数为第二个逗号前的数为million（百万）（百万）, 第三第三个逗号前的数为个逗号前的数为billion（十亿），第四个（十亿），第

5、四个逗号前的数为逗号前的数为trillion（万亿）（万亿） 888, 888，888，888，888eight hundred and eighty-eight trillion, eight hundred and eighty-eight billion, eight hundred and eighty-eight million, eight hundred and eighty-eight thousand, eight hundred and eighty-eighttrillion trljn 万亿万亿billion bljn 十亿十亿million mljn 百万百万thou

6、sand aznd 千千hundred hndrd 百百29,43150076,thousand,hundredmillion,billion,and6) 1，000以上数目以上数目,从右向左每三位用从右向左每三位用“，” 分开分开,分别读为分别读为thousand , million, billion 千 百万 十亿基数词的构成基数词的构成12基数词的构成基数词的构成6 500 431 7296 500 431 729six six five hundred five hundred four hundred and four hundred and thirty-one thirty-on

7、e seven hundred and seven hundred and twenty-ninetwenty-ninefour thousand, three hundred and twenty-oneseven million,six hundred and fifty four thousand, three hundred and twenty-one7,654,3211,987,654,32143214,321one billion, nine hundred and eighty-seven million,six hundred and fifty-four thousand,

8、 three hundred and twenty-one1. hundred thousand (表示具体数字表示具体数字) million billion2. hundreds thousands (表示概数表示概数) millions billions三三. .基数词的用法基数词的用法数词数词( (several)+)+ of hundreds of基数词的用法基数词的用法1、表示表示具体具体数目数目,hundred, thousand, million不用复数不用复数 表示表示不确定不确定数目数目,用用复数。复数。即即hundreds of(数百数百), thousands of(数千

9、数千), millions of(数百万数百万)+ 名词复数。名词复数。 1) Our country has a population of 1,300 million people. 2) There are several thousand students in our school. 3) After the war, thousands of people became homeless. 作业作业704653421017834679012543213074283216547670465342181703467931204321309428320654warming up1. _

10、tress were planted on the mountain last year. A. Thousands of B. Thousand of C. Five thousand of D. Five thousands.2_ of the students are girls in our class ATwo three BTwo threes CTwo thirds DSecond three3.-When was he born? -He was born on _. A. second of October B. the October three C. October th

11、e second D. three of October181. If a = 3, b=4, whats the answer to the problem, a+2ab+1=? the answer is_. A. twenty eight B. twenty-eighth C. twenty-eight2. In our school about five _ students are able to surf the Internet . A. hunderd of B. hunderds of C. hundred3. _ sheep were killed in the accid

12、ent. A. Thousand of B. Thousand C. Thousands of4. There are over nine _ workers in the factory, but _ of young people hope to work in it. A. hundred 0f; hundreds B. hundred; hundreds C. hundreds; hundred5.5. people in the world are sending people in the world are sending information by e-mail every

13、day.information by e-mail every day.A.Several million B.Many millionsA.Several million B.Many millionsC.Several millions D.Many millionC.Several millions D.Many million A 1 基数词（基数词（ cardinal number）序数词的构成序数词的构成1) 13, first, second, third 。2) 419, 相应基数词相应基数词+th,fourth,fifth,sixth,seventh,eighth,ninth

14、,tenth,eleventh,twelfth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth.3) 2090, y变成变成ie +th, twentieth,thirtieth,fortieth,fiftieth,sixtieth,seventieth,eightieth,ninetieth。4) 2199, 只把个位的基数词变成序数词只把个位的基数词变成序数词 如如twenty-first,ninety-ninth5) 序数词缩写序数词缩写-数字最后两字母数字最后两字母 如如1st, 2

15、nd, 3rd ,4th基变序基变序,有规律有规律,词尾加上词尾加上“th”，一、二、三，特殊记，结尾字母一、二、三，特殊记，结尾字母t,d,d八去八去“t”，九去，九去“e”，“f”要用要用ve替替见见“y”变成变成“i”和和“e”，词尾加上，词尾加上“th”，若是遇到几十几，只变个位就可以。若是遇到几十几，只变个位就可以。序数词缩写记清楚序数词缩写记清楚,数字后跟两字母。数字后跟两字母。(序数词构成规律)24基数词基数词序数词序数词基数词基数词序数词序数词oneonetweltwelvevetwotwotwenttwenty ythreethreetwentytwenty-one-onef

16、ofou ur rfortforty yfi fiveveone hundredone hundredsixsixone hundred one hundred andand five fiveeigheight tone hundred one hundred and twenty-and twenty-ninenineninnine eninnine eteenteen一一. .基数词、序数词基数词、序数词firstsecondthirdfourthfifthsixtheighthninthtwelfthtwentiethtwenty-firstfortiethone hundredtho

17、ne hundred and fifthone hundred and twenty-ninthnineteenth练习练习704653117121254280166704653428170346791445321694128654作业作业704653421017834679012543213074283216547670465342181703467931204321309428320654时间类型时间类型表示法表示法例例读法读法整点整点基数词（基数词（+ oclock) 1:0030分钟分钟分钟分钟 + past +小时小时 2:10= 30 分钟分钟half + past + 小时小时3

18、:3030分钟分钟（60-分钟）分钟） + to +（小时（小时 + 1）4:40分钟逢分钟逢15即即 一刻钟一刻钟a quarter5:156:45简化法简化法按顺序读基数词按顺序读基数词7:50one oclockten past twohalf past threetwenty to fivea quarter past fivea quarter to sevenseven fifty表示在几点钟用介词表示在几点钟用介词 atat数词的表示法数词的表示法 时间时间1. Its already 7:40 now. When will the film start? _. We still

19、 have five minutes. A. A quarter to seven B. A quarter to eight C. Seven past forty-five 月日年月日年 在在1998年年10月月1日日数词的表示法数词的表示法 年月日年月日on Octorber the first, nineteen ninety-eight日日the + 序数词序数词月月首字母大写首字母大写月日与年之间月日与年之间用用 ，分开分开年年（两位两位读）（两位两位读）on August the ninthin May, two thousand and ten天天 日用日用 onon 年年 月

20、用月用ininon Oct. 1st , 1998 月日月日 在在8月月9日日 月年月年 在在2010年年5月月 1. The accident happened on_. A. April 5, 2001 B. 2001, April 5 C. April 2001, 5 2. I was born _. A. in March 8, 1993 B. on July 9, 1994 C. on May, 199520世纪90年代in the 1990s/1990s在他50多岁时in his fifties数词的表示法数词的表示法 1. 1.年代世纪年代世纪in thein ones + 整十

21、基数词复数在某人几十岁时nineteen nineties2、“基数词基数词+名词名词” 的的合成形容词合成形容词作定语作定语， 中间有连字符中间有连字符“”,当中的名词用当中的名词用单数单数。 a 3 year old girl a seven-day holiday 3、表计量、表计量- “基数词基数词+度量单位度量单位+形容词形容词” The classroom is 7 meters long, 6 meters wide and 3 meters high.331. There will be more chances in _ century than in _ century.

22、A. twenty-one, twenty B. twenty-first, twentieth C. the twenty-first, the twentieth2. The city changed a lot _. A. in 1980s B. in the 1980s C. in the 19803. He graduated in _ of _ century. A. the sixtieth; twenty B. sixty; the twentieth C. his sixties; the twentieth4. She got the prize _. A. in her

23、fifties B. in fifties C. in her fifty5. The winner is _. He is an _ boy . A. eight-year-old; eight years old B. eight years old; eight-year-old C. eight-years old; eight-year-old6.He came to China _. A. at the age of 20 B. when he is 20 C. at age of 207.The river is about _. A. 6,000 meters long B.

24、6,000-meters-long C. 6,000-meter-longbe + 数词数词 +度量词度量词 + 形容词形容词1 15 5分子分子 基数词基数词分母分母 序数词序数词one fifthone fifth2 27 7分子分子 1 1分母分母 + s+ stwo seventhtwo sevenths s1 14 4分子分子 a a分母分母 quarterquartera quartera quarter3 34 4three quarterthree quarters s1 12 2a halfa half1 13 3threethree andand one third one

25、 third3 3基数词基数词 + and + + and + 分数分数数词的表示法数词的表示法 分数百分数分数百分数80 %80 %基数词基数词 + + percent percenteighty percenteighty percent百分数百分数 + of + 可数名词复数可数名词复数 谓语动词用复数谓语动词用复数百分数百分数 + of + 不可数名词不可数名词谓语动词用单数谓语动词用单数Seventy percent of Seventy percent of studentsstudents in our in our class class areare girls girlsO

26、ver seventy percent of the earths Over seventy percent of the earths surface issurface is covered with water covered with water1. _ of the students _ boys in Class A. Two three; are B. Two thirds; are C. Two thirds; is2. _ of her money _ spent on clothes.A. Two three; are B. Two thirds; is C. Two th

27、ird; is3. _ the teachers in our school is about one hundred, and _ of them are women teachers. A. The number of; two thirds B. The number of ; two third C. A number of; two thirds一个半小时一个半小时两个半小时两个半小时 two two andand a half hour a half hours s= two hour= two hours s andand a half a half one one andand

28、 a half hour a half hours s= one hour = one hour andand a half a half数词的表示法数词的表示法 半的表示法半的表示法1. The boy always stays there for _. A. three and half hour B. three hour and a half C. three and a half hours2. The old man drank_ beer. A. two bottles and a half B. two and a half bottle C. two bottle and a

29、 half一倍一倍 onceonce，两倍，两倍 twicetwice，三倍三倍 three timethree times s ( (三倍或以上三倍或以上 基数词基数词times)times)数词的表示法数词的表示法 倍数倍数 This box is five times as big as that one.=This box is four times bigger than that one. A + be + 倍数倍数 + as +adj.原原+ as +B. A是是B的的 倍倍 A + be + 倍数倍数 + adj.比比+ than +B. A比比B 倍倍 1. This bui

30、lding is _ that building. A. three time as tall as B. twice taller than C. three times as taller as 2. 我的箱子比你的重六倍我的箱子比你的重六倍! My box is _ yours.2.What a table! Ive never seen such a thing before.It is it is long . A.half not as wide as B.wide not as half asC.not half as wide as D.as wide as not half

31、six times heavier thanseven times as heavy asC一般编码用一般编码用 名词名词 + + 基数词基数词207207房房 三年级一班三年级一班第五部分第五部分第一课第一课3 3 号汽车号汽车第一中学第一中学Room 207 Room 207 Class One Grade ThreeClass One Grade ThreePart five = the fifth partPart five = the fifth partLesson one = the first lesson Lesson one = the first lesson Bus N

32、o.3 =Bus No.3 = the No.3 busthe No.3 busNo. 1 Middle SchoolNo. 1 Middle School数词的表示法数词的表示法 编号编号1.My mother lives at on floor.A.Room Six;the second B.Six Room;secondC.Room six;two D.the room six;the secondA(1) (1) 小数的读法小数的读法 小数点左边的数通常按基数词读，若为三位以上的数，也小数点左边的数通常按基数词读，若为三位以上的数，也可按编码式读法读出，即将数字单个读出；小数点右边的可

33、按编码式读法读出，即将数字单个读出；小数点右边的数通常按编码式读法单个读出。如：数通常按编码式读法单个读出。如： 6.86 six point eight six 6.86 six point eight six 14.15 fourteen point one five 14.15 fourteen point one five (2) (2) 小数中小数中“0”0”的读法的读法 “0”0”在小数中通常读作在小数中通常读作noughtnought（英）或（英）或zerozero（美），也（美），也可读作字母可读作字母o o。如：。如： 0.08 0.08 （noughtnought）poin

34、t nought eight point nought eight 或或 （zerozero）point zero eight point zero eight 小数表示法小数表示法 6+511 Six plus five is eleven 或 Six and five is eleven. 11-65 Eleven minus six is five. 或 Six from eleven is five. 4520 Four multiplied by five is twenty. 或 Four times five is twenty. 2045 Twenty divided by f

35、our is five. 或 Four into twenty goes five. 3 Three squared is nine. 2 Two cubed is eight. 加减乘除式的表达方法加减乘除式的表达方法 23表示“大约、接近”，常用nearly, about, some, almost, around 等。 about 700 people some fifty years ago 表示“左右”用or so In the past five years or so “少于”用less than Less than 30 years old 不到30岁“多于”用 more th

36、an , over More than a year ago over 70 years ago约数表示法约数表示法(1)序数词作定语，前面要加序数词作定语，前面要加the； The first truck is carrying a food basket John lives on the fifteenth floor She is my first English teacher.(2)有时加有时加a/an，“再一再一”，“又一又一” 的意思的意思Well have to do it a second time Shall I ask him a third time？ When I

37、sat down，a fourth man rose to speakThey had a second child in 1988序数词的用法序数词的用法48选择填空。1March is _month of a yearA a three B the third C a third2We will have a meeting at 8:05_Afive to eight B.eight to five Ceight o five3Eight plus eight is_.Asixteen Bsixty-four Cone4He is an _boyAeight years Beight-y

38、ear-old Ceight-years-old5We will have a_ walkAten minutes Bten minutes Cten-minutesB the thirdCeight o fiveAsixteenBeight-year-oldBten minutes6The wall is_.Afour meters long Bfour meter long Cfour-meter long7Whats the date today? Its_AMarch the eight BMarch the eighthCeight，March8It happened in the

39、1040sA in the forties of the eleventh centuryB in the forties of the tenth centuryC in the forty9About_ of the earths surface is covered with water.A. three-fours B. three-fourth C. three-fourthsAfour meters longBMarch the eighthA in the forties of the eleventh centuryC. three-fourths10. He went dow

40、n to the village which was _miles away from the city.A. three hundreds B. three hundredC. three hundreds ofB. three hundredHomework1.Grammar focus textbook(p30)exercise1-2 2、Workbook(p19) exercise4 52 新概念英语学习班制度新概念英语学习班制度 为了使每个学员都能养成良好的学习习惯，最大限度地消化及吸收所学的知识。特制定以下规章制度,望每个学员都能严格遵守以下规章制度，也希望家长们能尽力配合。1.上

41、课准时，不迟到。2.无特殊情况不随意请假。3.布置的作业保质保量完成。4.课前自己预习新单词。课后复习时，不理解的部分微信进行留言提问。5.开始学新概念新概念课文之后，每节课上完都要求同学们在微信里向老师背课文。（需家长配合与监督。）6.每课单词都需背诵，每节课都要进行听写。7.上课发言，作业及背诵老师都会进行评分，每期结束会根据孩子们所得的分数排名进行鼓励性的奖励。 (每期2020节课节课，每节2 2小时，小时，700元期。开学后，超过或不足一期，学费按节数进行增减。) 另外，上下学时，上下楼梯请同学们放轻脚步，不喧哗不追逐。不随地扔纸屑及零食袋。楼下安全门轻开轻关。 家长们接送孩子，开车慢行，路上注意安全。 我会尽最大的努力，与孩子们一起努力。愿孩子们，在本培训班都能收获满满。