走名初第三次课-数词(Eva).ppt

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1、Howmany?Numeral数词Eva基数词、序数词数词的表示法概念:基数词：表示数目的词序数词：表示顺序的词基数词：1~10onetwothreefourfivesixseveneightnineten11~19eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteen20~99twentythirtyfortyfiftysixtyseventyeightyninety11~19eleventwelvethirteenfourteenfifteensixteenseventeeneighteenni

2、neteen20~99twentythirtyfortyfiftysixtyseventyeightyninety几十几21766849几十个位之间加连字符“—”twenty-oneseventy-sixsixty-eightforty-nine百位数：101320几百：200500几百几：648850onehundredandonethreehundredandtwenty1~9基数词+hundred，表示几百twohundredfivehundred几百与几十几之间加上andsixhundredandforty-eighteighthundredandfifty千位数：数字

3、：从右往左，每三位加一个“，”英文：从右往左，第一个“，”前的数字后加thousand，第二个“，”前的数字后加million，第三个“，”前的数字后加billion小试牛刀1，126onethousandonehundredandtwenty-six3，345threethousandthreehundredandforty-five6，800sixthousandeighthundred9，303ninethousandthreehundredandthree5，648fivethousandsixhundredandforty-eight小试牛刀7,654,321seve

4、nmillionsixhundredandfiftyfourthousandthreehundredandtwenty-one1,987,654,321onebillionninehundredandeighty-sevenmillionsixhundredandfifty-fourthousandthreehundredandtwenty-one表示具体数字：数词表示概数：hundredsthousandsmillionsbillions基数词的用法hundredthousandmillionbillion+of练一练1.—Ifa=3,b=4,what’stheanswert

5、otheproblem,a+2ab+1=?—theansweris___.A.twentyeightB.twenty-eighthC.twenty-eight2.Many__sheepwerekilledintheaccident.A.thousandsofB.thousandC.thousands3.Thereareovernine__workersinthefactory,but__ofyoungpeoplehopetoworkinit.A.hundred;hundredsB.hundreds;hundredsC.hundreds;hundred1~19由相应的基数词后面加

6、“th”构成，特殊除外20~99几十：变相应基数词词尾y为i，加“eth”构成几十几：几十的基数词加上“-”，再加个位序数词一百以上：变基数词词尾为序数词形式序数词：序数词的缩略：1st，2nd，3rd为特殊形式外，其余都为阿拉伯数字后加th基数词序数词基数词序数词onetwelvetwotwentythreetwenty-onefourfortyfiveonehundredsixonehundredandfiveeightonehundredandtwenty-nineninenineteen一.基数词、序数词firstsecondthirdfourthfifthsixthe

7、ighthninthtwelfthtwentiethtwenty-firstfortiethonehundredthonehundredandfifthonehundredandtwenty-ninthnineteenth20082010月：在五月在七月在十月日：五月五日三月一日twothousandandeighttwothousandandten用介词in，表示在哪个月inMayinJulyinOctober用定冠词the加序数词表示，在哪一天加介词onthefifthofMayMay5