高考英语一轮复习知识点教案：数词

这是一份高考英语一轮复习知识点教案：数词，共4页。

数词包括基数词和序数词两种
基数词
1至12的基数词是独立的词：ne tw three fur five six seven eight nine ten eleven twelve
13至19的基数词以后缀-teen结尾：thirteen furteen fifteen sixteen seventeen eighteen nineteen
20至90的整十位数的词以后缀-ty结尾：twenty thirty frty fifty sixty seventy eighty ninety
几十几的基数词由十位数的词和个位数的词合成，中间加连字符“-” eg: 34 thirty-fur 42 frty-tw
三位数的基数词须在百位和十位（若无十位则和个位）之间加and eg: 158 ne hundred and fifty-eight
四位数即1，000以上的基数词，从后往前数，每三位加一个逗号“，”第一个逗号前为千thusand, 第二个逗号前为百万millin, 第三个逗号前为十亿billin
eg: 6,364,285,751 six billin, three hundred and sixty-fur millin, tw hundred and eighty-five thusand, seven hundred and fifty ne
序数词
第1到第3: first secnd third
第4到第19的序数词以后缀-th结尾： furth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth furteenth fifteenth sixteenth seventeenth eighteenth nineteenth
第20到第90的十位数序数词变-y为-i再加eth: twentieth thirtieth frtieth fiftieth sixtieth seventieth eightieth ninetieth
整单位数的序数词直接加th: hundredth thusandth millinth billinth
其余的序数词的构成为：基数词+序数词 eg: 132nd ne hundred and thirty-secnd
小数表达法 eg: 3.26 three pint tw six
分数表达法 eg: 1/5 ne fifth 2/5 tw fifths
1/5 ne in five 或 ne ut f five
百分数表达法 eg: 45% frty-five percent
倍数表达法
A、 A is + 倍数as + adj./adv.原级(many/much + n.) + as + B
eg: Line A is three times as lng as line B.
(Australia has furteen times as many peple as America.)
B、 A is + 倍数 + adj./adv.比较级 + than B
eg: Line A is twice lnger than line B.
C、 A is + 倍数 + the + 相应n.(height/width/length/size) + f + B
eg: Line A is three times the length f line B.
D、 A is + 倍数 + that/thse + f B
eg: Tm’s age is twice that f Jim’s.
编号顺序的表达
eg: 第一课 Lessn ne 着重编号
the First Lessn 着重顺序
数 词
定义:表示数目多少或顺序次第的词叫作数词。
数词包括基数词和序数词两种
基数词
1至12的基数词是独立的词：ne tw three fur five six seven eight nine ten eleven twelve
13至19的基数词以后缀-teen结尾：thirteen furteen fifteen sixteen seventeen eighteen nineteen
20至90的整十位数的词以后缀-ty结尾：twenty thirty frty fifty sixty seventy eighty ninety
几十几的基数词由十位数的词和个位数的词合成，中间加连字符“-” eg: 34 thirty-fur 42 frty-tw
三位数的基数词须在百位和十位（若无十位则和个位）之间加and eg: 158 ne hundred and fifty-eight
四位数即1，000以上的基数词，从后往前数，每三位加一个逗号“，”第一个逗号前为千thusand, 第二个逗号前为百万millin, 第三个逗号前为十亿billin
eg: 6,364,285,751 six billin, three hundred and sixty-fur millin, tw hundred and eighty-five thusand, seven hundred and fifty ne
序数词
第1到第3: first secnd third
第4到第19的序数词以后缀-th结尾： furth fifth sixth seventh eighth ninth tenth eleventh twelfth thirteenth furteenth fifteenth sixteenth seventeenth eighteenth nineteenth
第20到第90的十位数序数词变-y为-i再加eth: twentieth thirtieth frtieth fiftieth sixtieth seventieth eightieth ninetieth
整单位数的序数词直接加th: hundredth thusandth millinth billinth
其余的序数词的构成为：基数词+序数词 eg: 132nd ne hundred and thirty-secnd
小数表达法 eg: 3.26 three pint tw six
分数表达法 eg: 1/5 ne fifth 2/5 tw fifths
1/5 ne in five 或 ne ut f five
百分数表达法 eg: 45% frty-five percent
倍数表达法
A、 A is + 倍数as + adj./adv.原级(many/much + n.) + as + B
eg: Line A is three times as lng as line B.
(Australia has furteen times as many peple as America.)
B、 A is + 倍数 + adj./adv.比较级 + than B
eg: Line A is twice lnger than line B.
C、 A is + 倍数 + the + 相应n.(height/width/length/size) + f + B
eg: Line A is three times the length f line B.
D、 A is + 倍数 + that/thse + f B
eg: Tm’s age is twice that f Jim’s.
编号顺序的表达
eg: 第一课 Lessn ne 着重编号
the First Lessn 着重顺序