成人高考高起點英語復(fù)習(xí)資料-詞匯-數(shù)詞

成人高考高起點英語復(fù)習(xí)資料-詞匯-數(shù)詞

編輯推薦：2021年成人高考高起點英語復(fù)習(xí)資料匯總

數(shù)詞

一、基數(shù)詞及其主要用法

表示數(shù)目的詞稱基數(shù)詞。15 fifteen，幾百幾千不加s，242 two hundred forty-two，5058 five thousfifty-eight，9，600，000 nine million six hundred thousand

1.基數(shù)詞可以用于數(shù)字的計算。

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.基數(shù)詞可以表示人的大致年齡和年代。

He died in his fifties.

3.基數(shù)詞可以用來表達(dá)年份、時間、電話號碼。

1700 seventeen hundred

1814 eighteen fourteen

4.基數(shù)詞可以用于編號。

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

5.基數(shù)詞可以和其他詞一起構(gòu)成合成形容詞，在句子中作定語。

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、序數(shù)詞及其主要用法

表示順序的詞稱為序數(shù)詞。如first， second， third， fourth， ninth， twenty-first， forty-fifth等。

序數(shù)詞可以用來表示日期和世紀(jì)。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

序數(shù)詞在句子中前面一般加the

The first of October is our National Day.

She was the third to arrive.

序數(shù)詞在句子中前面加不定冠詞，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.