求 数学的英语单词【一定要有练习 就是那种 thirty=多少】 =

2个回答

  • 英文数字

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    英文数字和中文一样都是十进数(decimal):有一到十十个形式(pattern),十一到二十形式重复,二十一到三十再重复.

    目录 [隐藏]

    1 基数(Cardinal numbers)

    1.1 一到十(One to ten

    1.2 十几(Teens)

    1.3 几十(Tens)

    1.4 不规则

    1.5 二十几、三十几

    1.6 大的数字

    1.7 复杂数字

    2 序数(Ordinal numbers)

    2.1 例外

    2.2 练习

    2.3 参见

    [编辑] 基数(Cardinal numbers)

    [编辑] 一到十(One to ten

    一到十都是单个音节:

    1 one

    2 two

    3 three

    4 four

    5 five

    6 six

    7 seven

    8 eight

    9 nine

    10 ten

    [编辑] 十几(Teens)

    “十几”(teens)在数字后加个“teen”,代表+10

    例:

    4 = four

    14 = fourteen

    6 = six

    16 = sixteen(加了个“teen”,代表+10)

    11 eleven 不符合规格

    12 twelve 不符合规格

    13 thirteen 拼法更改 thir

    14 fourteen 规则(没有缺u)

    15 fifteen 拼法更改 fif

    16 sixteen 规则

    17 seventeen 规则

    18 eighteen 拼法更改(缺t)

    19 nineteen 规则

    ok

    [编辑] 几十(Tens)

    20,30(tens)是在1-10基数词后面加上“ty”(=×10)

    20 twenty 拼法更改 twen

    30 thirty 拼法更改 thir

    40 forty 拼法更改 for(缺u)

    50 fifty 拼法更改 fif

    60 sixty 规则

    70 seventy 规则

    80 eighty 拼法更改(缺t)

    90 ninety 规则

    [编辑] 不规则

    但是,11和12的不符合规格:

    1 = one

    11 = eleven

    2 = two

    12 = twelve

    有些拼法有更改,要注意:

    3 = three

    13 = thirteen

    30 = thirty

    4 = four

    40 = forty(没有“u”)

    但是fourteen(14)正常

    8 = eight

    18 = eighteen(一个t而已)

    1

    one 11

    eleven 不符合规格 11 eleven

    2

    two 12

    twelve 20

    twenty 不符合规格 12 twelve 20 twen

    3

    three 13

    thirteen 30

    thirty 拼法更改 thir

    4

    four 14

    fourteen 40

    forty 40 拼法更改(缺u)

    5

    five 15

    fifteen 50

    fifty 拼法更改 fif

    6

    six 16

    sixteen 60

    sixty 规则

    7

    seven 17

    seventeen 70

    seventy 规则

    8

    eight 18

    eighteen 80

    eighty 拼法更改(缺t)

    9

    nine 19

    nineteen 90

    ninety 规则

    [编辑] 二十几、三十几

    在数字前加个“twenty-”,代表+20(见#×10)注意,一定要在twenty 和单数之间写个连字号(-).

    例:

    4 = four

    24 = twenty-four

    6 = six

    26 = twenty-six

    同样的,在数字前加个“thirty”,代表+30(见#×10)

    例:

    4 = four

    34 = thirty-four(加了个“thirty”,代表+30)

    6 = six

    36 = thirty-six(加了个“thirty”,代表+30)

    加个“forty”,代表+40,等等

    [编辑] 大的数字

    一百多的数字前面写个“one hundred and”

    “a hundred and”比较口语.

    一定要写“and”

    例:

    1 = one

    101 = one hundred and one

    31 = thirty-one

    131 = one hundred and thirty-one

    两百多的数字前面写个“two hundred and”.注意,

    不需要复数形式:“two hundreds”←错误

    例外:“There are five two hundreds in one thousand.”(在一千个一里面有五个两百.)←在此,“五个两百”不是一个数字,所以有复数.关系是〔two hundred〕s,非two 〔hundred〕s.“two hundred”两个字算一组,一起副数.

    没有连字号“two-hundred”←错误

    其他:

    千 = thousand

    万 = ten thousand(没复数)

    万 = myriad

    少用,大部分只表示“许多”的意思,例:a myriad of colours(许多颜色)

    百万 = million

    连贯字:millionaire =百万富翁

    百万以上的数字英国和美国名称不一.下面举一个例子(美式读法):

    16069380442589902755423214235476587698791962092 = sixteen quattuordecillion,sixty-nine tredecillion,three hundred and

    eighty duodecillion,four hundred and forty-two undecillion,five hundred and eighty-nine decillion,nine hundred and two nonillion,seven hundred and fifty-five octillion,four hundred and twenty-three septillion,two hundred and fourteen sextillion,two hundred and thirty-five quintillion,four hundred and seventy-six quadrillion,five hundred and eighty-seven trillion,six hundred and ninety-eight billion,seven hundred and ninety-one million,nine hundred and sixty-two thousand,ninety-two

    [编辑] 复杂数字

    英文写数字,每三个字写逗号:10,000,000,000

    在每个写逗号之地,拼字也写逗号(非“and”).

    例:1,100 = one thousand,one hundred