​2021年成人高考高起点《英语》重点考点：数词

【导语】中国教育在线成人高考频道根据《全国各类成人高等学校招生复习考试大纲》收集整理了2021年成人高考高起点《英语》重点考点以供考生参考，具体如下：

点击查看：2021年成人高考高起点英语模拟试题

数词

一、基数词及其主要用法

表示数目的词称基数词。15 fifteen，几百几千不加s，242 two hundred forty-two，5058 five thousfifty-eight，9，600，000 nine million six hundred thousand.

1.基数词可以用于数字的计算。

6+8 = 14 Six plus eight is fourteen.

9-7 = 2 Nine minus seven is two.

7X5 = 35 Seven times five is thirty-five.

8÷4 = 2 Eight divided by four is two.

2.基数词可以表示人的大致年龄和年代。

He died in his fifties.

3.基数词可以用来表达年份、时间、电话号码。

1700 seventeen hundred

1814 eighteen fourteen

4.基数词可以用于编号。

Number six， line 4， page 19， Bus(No.) 332， Platform (No.) 5， Room 101

5.基数词可以和其他词一起构成合成形容词，在句子中作定语。

A one-month-old baby can recognize its mother by smell.

This eleven-month-old baby can speak a few words.

(The baby is eleven months old.)

The teacher asked us to write a four-thousand-word essay as our homework.

(There are four thouswords in the essay.)

二、序数词及其主要用法

表示顺序的词称为序数词。如first， second， third， fourth， ninth， twenty-first， forty-fifth等。

序数词可以用来表示日期和世纪。May the first / the first of May (5.1) ， August the eighth / the eighth of August (8.8) ， the twentieth century， the twenty-first century

序数词在句子中前面一般加the

The first of October is our National Day.

She was the third to arrive.

序数词在句子中前面加不定冠词，表示“再一”又一“。

They'll have to do it a second time.

Shall I ask him a third time?

When he sat down ， a fourth man rose to ask.

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