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# 英语语法分析之数词

近期很多家长询问我们掌门一对一怎么样这个问题，掌门一对一是一家比较知名的英语培训机构，今天通过英语语法分析之数词来为大家解答下掌门一对一怎么样:

数词

示意数目多少或程序多少的词叫数词，数词分为基数词和序数词。示意数目多少的数词叫基数词;示意程序的数词叫序数词。

一、基数词

1)基数词写法和读法： 345 three hundred and forty-five;

2)基数词普通是复数方式，但下列状况，罕用单数：

a. 与of 短语连用，示意概数，不能与详细数目连 用，如scores of people 指许多人;

b. 在一些示意"一排"或"一组"的词组里;

如：They arrived in twos and threes. 他们人山人海的抵达了。

c. 示意"几十岁";

d. 示意"年代"，用 in +the +数词单数;

e. 在乘法运算的一种示意法里，如：3 x 5 = 15 Three fives is (are) fifteen.

二、序数词

序数词的缩写方式： first---1st second---2nd thirty-first---31st

三、 数词的用法

1)倍数示意法

a. 主语+谓语+倍数(或分数)+ as + adj. + as

I have three times as many as you. 我有你三倍那么多。

b. 主语+谓语+倍数(分数)+ the size (amount，length…) of…

The earth is 49 times the size of the moon. 地球是月球的49倍。

c. 主语+谓语+倍数(分数)+ 描述词(副词)比拟级+ than…

The grain output is 8 percent higher this year than that of last year.

往年比去年食粮产量添加8%。

d. 还能够用by+倍数，示意添加多少倍

The production of grain has been increased by four times this year.

往年食粮产量添加了4倍。

2)分数示意法

形成：基数词代表分子，序数词代表分母。分子大于1时，分子的序数词用复数，分母序数词用单数：

1/3 one-third ; 3/37 three and three-sevenths.

The number ofnumeral

or the number of programs is called numerals, and the numerals are pided into the cardinal and the ordinal numbers. The number of numeral numbers is called the cardinal number; the numeral of the program is called the ordinal number.

, cardinal

1) base word writing and reading: 345 three hundred and forty-five;

2) cardinal general is plural, but the following condition:

A. and of for the singular phrase, and not with the number of approximate numbers, such as scores of and people

B. in many people; some of the " a row of " or " group " phrase;

: They arrived in twos and as they arrived in the huge crowds of people threes.

C. of " "

D.; a few years old; "'s " sketch; in +the,

E. + numeral singular; in a schematic method of multiplication, such as: 3 x 5 = 15 Three fives is (are) fifteen.

two, abbreviated ordinal

ordinal number:.

first---1st second---2nd thirty-first---31st

three, 1) multiple numeral signal method

A. subject + predicate + ratio (or fraction) + as + adj. + as

I have three times as many as you. I have three times as many as you.

B. subject + predicate + multiple (fraction) + the size (amount, length...) ) of...

The earth is 49 times the size of the moon. earth is 49 times that of the moon.

C. subject + predicate + multiple (fraction) + description word (adverb) analogy + than...

The grain output is 8 percent higher this year than that of, 8% more than last year's food production.

D. can also use by+ multiples to indicate how many times the

The production of grain has been increased has been added. The annual grain yield has increased by 4 times.

2) the fraction indicates the formation of the method

: the Cardinals represent the molecules and the ordinal numbers represent the denominator. When the molecule is greater than 1, the number of ordinal numbers of the molecule is plural and the denominator ordinal number is singular:

1/3 one-third; 3/37 three and three-sevenths.

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