20一90英语单词怎么写 _英语单词

1.1至90这些英语单词怎么写1 one
2 two
3 three
4 four
5 five
6 six
7 seven
8 eight
9 nine
10 ten
11 eleven
12 twelve
13 thirteen
14 fourteen
15 fifteen
16 sixteen
17 seventeen
18 eighteen
19 nineteen
20 twenty
21 twenty-one
22 twenty-two
23 twenty-three
24 twenty-four
25 twenty-five
26 twenty-six
27 twenty-seven
28 twenty-eight
29 twenty-nine
30 thirty
31 thirty-one
32 thirty-two
33 thirty-three
34 thirty-four
35 thirty-five
36 thirty-six
37 thirty-seven
38 thirty-eight
39 thirty-nine
40 forty
41 forty-one
42 forty-two
43 forty-three
44 forty-four
45 forty-five
46 forty-six
47 forty-seven
48 forty-eight
49 forty-nine
50 fifty
51 fifty-one
52 fifty-two
53 fifty-three
54 fifty-four
55 fifty-five
56 fifty-six
57 fifty-seven
58 fifty-eight
59 fifty-nine
60 sixty
61 sixty-one
62 sixty-two
63 sixty-three
64 sixty-four
65 sixty-five
66 sixty-six
67 sixty-seven
68 sixty-eight
69 sixty-nine
70 seventy
71 seventy-one
72 seventy-two
73 seventy-three
74 seventy-four
75 seventy-five
76 seventy-six
77 seventy-seven
78 seventy-eight
79 seventy-nine
80 eighty
81 eighty-one
82 eighty-two
83 eighty-three
84 eighty-four
85 eighty-five
86 eighty-six
87 eighty-seven
88 eighty-eight
89 eighty-nine
90 ninety
2.20——90用英语怎么写20到90的英语是twenty、thirty、forty、fifty、sixty、seventy、eighty、ninety 。
表示数目多少或顺序先后的词叫做数词（numeral）。数词与不定式代词很相似，其用法相当于名词与形容词。
数词有两种。表示数目多少的数词叫做基数词（cardinalnumeral），如one,ten,fifty-two等。
表示顺序先后的数词叫做序数词（ordinalnumeral），如first,tenth,fiftieth等。1)1-12的基数词是：one1,two2,three3,four4,five5,six6,seven7,eight8,nine9,ten10,eleven11,twelve12.13-19，皆由3-9加后缀-teen构成，即：thirteen13,fourteen14,fifteen15,sixteen16,seventeen17,eighteen18,nineteen19.（注意thirteen,fifteen,eighteen的拼法）20-90等十位数均由2-9加加后缀-ty构成，即：twenty20,thirty30,forty40,fifty50,sixty60,seventy70,eighty80,ninety90.21-29由十位数20加个位数1-9构成，中间须有连字符“-”，即：twenty-one21,twenty-two22,twenty-three23,twenty-four24,twenty-five25,twenty-six26,twenty-seven27,twenty-eight28,twenty-nine29.其它的十位数照些类推，如：thirty-one31,forty-two42,fifty-three53,sixty-four64,seventy-five75,eighty-six86,ninety-seven97.2）百位数由1-9加hundred构成，如包含十位数及个位数，中间用and连接，也可以不用；如只包含个位数，即十位数为零时，则and不可省。
如：a(one)(one)hundred(and)twenty-five125threehundred(and)forty-one341ninehundred(and)eighty-（英语中从1100-1900之间的整数常用hundred表示）3）千位数由1-9加thousand构成，其后的百、十、个位数构成方法同前。如：a(one)(one)thousandonehundred(and)forty-nine1149（此处hundred之前不可用a）(and)thirty-seven3537英语里没有“万”这一单位，万也用thousand表示。
如：(and)(and)eighty-five40785fifty-(and)ninety-three55493十万的说法是：a(one)（此处thousand之前不可用a）-(and)eighty-nine4627894）百万的说法是：a(one)--(and)fifty-nine4535659千万及千万以上的说法是：sixtymillion6000万fivehundredmillion5亿eightbillion80亿thirtybillion3百亿（等于美国英语thirtybillion）a(one)hundredbillion1千亿（等于美国英语a(one)hundredbillion）英国英语的billion=1000000000000，即10的12次方，等于美国英语的trillion 。现在英国也有人采用美国用法，故英国计量局认为最好避免使用billion,trillion（美制10的12次方，英制10的15次方）和quadrillion（（美制10的15次方，英制10的18次方）。