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(单词翻译:双击或拖选)
text26-indent: 10.55pt; margin: 0cm 0cm 0pt; mso-char-indent-count: 1.0; mso-line-height-alt: 0pt" class="MsoNormal">数词(num.): 表示数目或事物的顺序。如:one, two, three, first, second, third, fourth1.
数词:
1、分类:数词有基数词和序数词两种。英语的数词可以作句子的主语、宾语、表语和定语。
2、基数词:表示数目的词叫基数词。
1、 英语中常用的基数词有:
1 2 3 4 5 6 7 8 9 10 11 12 |
one two three four five six seven eight nine ten eleven twelve |
13 14 15 16 17 18 19 |
thirteen fourteen fifteen sixteen seventeen eighteen nineteen |
20 30 40 50 60 70 80 90 100 |
twenty thirty forty fifty sixty seventy eighty ninety one(a) hundred |
23 35 101 |
twenty-three thirty-five one hundred and one |
1000→one(a) thousand,10000→ ten thousand,100000→one hundred thousand ,1000000→one million2,10000000→ten million, 100000000→one hundred million,
108→one hundred and eight, 146→one hundred and forty-six, 500→five hundred , 1001→one thousand and one, 1813→one thousand eight hundred and thirteen.
2、[注]:(1)百位与十位之间要加and;十万位和万位,亿位和千万位之间通常也要加and。
(2)英语用千、百万等单位计数,大数字从右向左看, 每隔三位划一逗号,倒数第一个逗号之前要用thousand,倒数第二个逗号之前要用million,倒数第三的逗号之前要用billion表示。
(3) hundred、 thousand、 million作数词时,不用复数,前面可以加上one, two, …等其它数词。用作名词时复数表示“成…上…”,后面必须要有of,前面可以加上some,many,several等词。如:five hundred(五百), hundreds of(成百上千的), ten thousand(一万), thousands of(成千上万的), millions3 of(成百万的)
3、序数词:表示顺序的数词叫序数词。
1、 英语的序数词基本变法:
(1) 一般在基数词后加th,(2)-ve结尾的改为-fth,(3)-ty结尾的改为-tieth,(4)熟记特殊词。
2、序数词如下:
1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th |
※first ※second ※third fourth |
13th 14th 15th 16th 17th 18th 19th |
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20th 30th 40th 50th 60th 70th 80th 90th 100th |
fortieth fiftieth sixtieth seventieth eightieth ninetieth one undredth |
21st 22nd 23rd 35th 101st |
twenty-first twenty-second twenty-third thirty-fifth one hundred and first |
1000th→one thousandth, 1000000th →one millionth21., 第703→the seven hundred and third,
第5480→the five thousand four hundred and eightieth.
3、注:(1)两位以上的序数词仅个位数部分用序数词,其余部分仍用基数词。如:thirty-sixth,
(2) 使用序数词时一般加定冠词the. 如:I’m in the third grade.
(3) 序数词作“几分之几”讲时,有复数形式。如:1/5→one fifth ; 2/3→ two thirds ; 4/7→ four sevenths ; 1/2→ a half ; 1/4→a quarter ; 3/4→ three quarters ; 50%→ fifty hundredths ( fifty per23 cent).
4、数词的用法:
1、表示年份:2002: twenty thousand and two ; 1976 : nineteen seventy-six.
2、表示日期:
3、表示时刻: 5:15→ five fifteen或a quarter past five ; 8:30→ eight thirty或half past eight ; 10:45→ ten forty-five或a quarter to eleven.
4、表示编号:Room 105→Room one 0 five; Bus No.13→Bus Number Thirteen; P.5→Page Five; Tel.No.7658659→Telephone Number seven-six-five-eight-six-five-nine
5、小数的读法:5.7→ five point seven, 0.16 →zero point one six.
6、“半”的表达: 1/2→half, 半小时→half an hour, 1.5小时→one and a half hours或one hour and a half.
7、序数词前面加the时,表示顺序,加a/an时表示“再一、又一”。如:The third lesson is rather24 difficult.(第三课相当难)/ Shall25 we read the text a third time?(我们把课文读第三遍,好吗?)
1 fourth | |
n.四分之一;num.第四 | |
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2 million | |
num.百万,100万;n.无数,大众 | |
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3 millions | |
n.数百万;百万( million的名词复数 ) | |
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4 fifth | |
num.第五;n.五分之一 | |
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5 sixth | |
num.第六 | |
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6 seventh | |
n.七分之一;num./adj.第七 | |
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7 eighth | |
n.八分之一;num.第八 | |
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8 ninth | |
adj.第九,九分之一 | |
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9 tenth | |
n.第十,十分之一 | |
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10 eleventh | |
num.第十一 | |
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11 twelfth | |
num.第十二;n.十二分之一 | |
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12 thirteenth | |
num.第十三 | |
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13 fourteenth | |
num.第十四 | |
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14 fifteenth | |
num.第十五 | |
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15 sixteenth | |
num.第十六 | |
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16 seventeenth | |
num.第十七 | |
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17 eighteenth | |
adj.第十八的;num.第十八 | |
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18 nineteenth | |
num.第十九 | |
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19 twentieth | |
n.二十分之一;num./adj.第二十 | |
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20 thirtieth | |
num.第三十 | |
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21 millionth | |
n.第一百万,百万分之一adj.百万分之一的;第一百万的 | |
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22 sevenths | |
n.第七(个)( seventh的名词复数 );处于极乐世界,快活似神仙 | |
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23 per | |
prep.每,每一,根据,按照;由,经,以,靠 | |
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24 rather | |
adv.宁愿,宁可;相当 | |
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25 shall | |
v.aux.(主要用于第一人称)将 | |
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26 text | |
n.本文,文件,正文,课文;vt./vi.发短信 | |
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