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1、数词(Numerals)I.基数词(CardinalNumerals)1.12是独立的数字：onetwothreefourfivesixseveneightnineteneleventwelve2.13-19是以后缀-teen结尾的：thirteenfourteenfifteensixteenseventeeneighteennineteen3.20-90八个整十的两位数是以后缀・ty结尾的：twentythirtyfortyfiftysixtyseventyeightyninety4.其他两位数，由整I-的数和个位数合成，中间加连字符46—forty-six
2、92…ninety-two5.百位数和十位数Z间，在英国英语中要用“and”连接，而美国英语中一般不用。569---fivehundred(and)sixty-nine927---ninehundred(and)twenty-seven6.多位数的表示方法：从个位数往左数，每三位被分割成一个单元，每个单元按三位数來读，从倒数第二个单元的后而开始，从右往左依次1)11：thousand,million,billion,trillion等。(在英国英语中，十亿:thousandmillion,万亿：billion;在美国英语中，十亿:billion,万亿:tril
3、lion)6,746,413,416,746sixtrillion,sevenhundredandforty-sixbillion,fourhundredandthirteenmillion,fourhundredandsixteenthousand,sevenhundredandforty-six6,987,464,16&944sixtrillion,ninehundredandeighty-sevenbillion,fourhundredandsixty-fourmillion,onehundredandsixty-eightthousand,ninehu
4、ndredandforty-four4,946,216,416fourbillion,ninehundredandforty-sixmillion,twohundredandsixteenthousand,fourhundredandsixteen.7.基数词的用法：1.hundred,thousand,million,billion,dozen,score等在表示确切数字的时候，示血不可加-s,但是在表示不确切的数字时，后面要加-s,且要加of。sixhundredstudents600学生hundredsofstudents成百上千的学生seventhou
5、sandpigs7000头猪thousandsofpigs成T•上万的猪millionsof数以百万计的billionsof数以十亿计的tensofthousandsof成千上万的twodozeneggs=twodozenofeggs两打鸡蛋dozensoftimes许多次fourscoreycars=fourscoreofyears80年scoresofyears许多年(湛江09)-Zhanjiangisreallyabeautifulcity,isn'tit?-Yes,travelersliketocomehereforavisit.A.thousands
6、ofB.thousandofC.thousandD.threethousands(河南09)Thefarmerkeepscowsonhisfarm.A.hundredB.hundredofC.hundredsD.hundredsof2.基数词的复数可以用来表示“年龄”或“年代”。inone'stwenties在某人二十来岁的时候inone'ssixties在某人六十來岁的时候inthetwenties/fifties在二十年代/五十年代3.时间表示方法1)时刻8：20eighttwentytwenty(minutes)past/aftereight9：30ni
7、nethirtyhalfpastnine1()：45tenforty-fiveaquartertoeleven12：55twelvefifty-fivefiveto/beforeone3：00threeo,clock21：05twenty-oneofive1)年代1802eighteenotwo/eighteenandtwo/eighteenhundredandtwo1956nineteenfifty-six/nineteenhundredandfifty-six2001twothousandandone57BCfifty-sevenBC1000ADoneth
8、ousandAD2)年、刀、日2H1R
