英语当中的数词分别有基数词和序数词,下面小编为您介绍数词的用法
英语中常用的基数词有:
1 2 3 4 5 6 7 8 9 10 |
one two three four five six seven eight nine ten |
11 12 13 14 15 16 17 18 19 20 |
eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty |
21 22 23 … 30 31 32 33 … 40 |
twenty-one twenty-two twenty-three
thirty thirty-one thirty-two thirty- three
forty |
41 42 … 50 60 70 80 90 100 101 |
forty-one forty-two
fifty sixty seventy eighty ninety one(a) hundred one hundred and one |
(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), millions of(成百万的)
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。
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
※first
※second
※third
fourth
fifth
sixth
seventh
eighth
ninth
tenth
11th
12th
13th
14th
15th
16th
17th
18th
19th
20th
eleventh
twelfth
thirteenth
fourteenth
fifteenth
sixteenth
seventeenth
eighteenth
nineteenth
twentieth
21st
22nd
23rd
…
30th
31st
35th
…
40th
twenty-first
twenty-second
twenty-third
thirtieth
thirty- first
thirty-fifth
fortieth
50th
60th
70th
80th
90th
100th
101st
fiftieth
sixtieth
seventieth
eightieth
ninetieth
one undredth
one hundred and first
数词的用法:
1、表示年份:2002: twenty thousand and two ; 1976 : nineteen seventy-six.
2、表示日期: 12月1日: Dec.1st或the first of December;2002年11月8日: Nov. 8th, 2002.
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 rather difficult.(第三课相当难)
Shall we read the text a third time?(我们把课文读第三遍,好吗?)
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