内容正文:
数 词
General teaching courseware
数词是用来表示数量或顺序的词。数词可以分为基数词和序数词。
CONTENTS
目录
基数词
01
序数词
02
其他数词
03
04
数词的用法
基数词
01
构成
01
1-10
one two three four five six seven eight nine ten
11-19
eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen
20-100
twenty thirty forty fifty sixty seventy eighty ninety hundred
口诀
找清规律很容易,十二以内词名异;
十三数到十九去,后加-teen莫忘记。
二十、 三十至九十,整十之后有-ty;
如果要说“几十几”,中间“-”号别丢弃,
hundred是“一百”,请你记住莫大意。
基数词的基本形式
表示几百几时,在几十几与百位间加上 and
101 one hundred and one
千位数以上,从数字的右端向左端数起,每三位数加一个逗号 “,”。
thousand 千
million 百万
billion 十亿
表示几十几时,在几十和个位基数词形式之间添加连字符 “-”
21 twenty-one
基数词的复数形式
02
A
B
01
基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式;但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现。
There are hundreds of people in the hall.
They went to the theatre in twos and threes.
02
表示人的不确切岁数或年代,用几十的复数形式表示。
He became a professor in his thirties.
It was in the 1960s.
主语、宾语、定语、表语、同位语。主要表示事物或人物的个数。
The two happily opened the box.
I need three altogether.
Four students are playing volleyball outside.
We are sixteen.
They three tried to finish the task before sunset.
基数词的语法成分
03
位于another, all之后
Can you have another two cakes?
The boy lost all the five pencils last week.
位于such和more之前
I can finish reading two such books in two days.
Please give me one more apple to eat.
可置于last, next, other之前或之后
His last two books are written in English.
基数词的使用位置
04
序数词
02
基变序,有规律,
词尾加上-th。
一二三,特殊记,
词尾字母t,d,d。
八去t,九除e,f来把ve替。ty改为tie。
若是碰到几十几,
前用基来后用序。
口诀
first—1st
second—2nd
third—3rd
fourth—4th
sixth—6th
twentieth—20th
twenty-third—23rd
其中1st,2nd,3rd为特殊形式,其它的都是阿拉伯数字后加th
缩写
第一 first
第二 second
第三 third
第四 fourth
第五 fifth
除了first,second,third有独特形式以外,其他的通常是在基数词词尾加
-th构成。
构成
01
02
03
定语
The first student to come to school is usually Jim.
表语
Mr. Wang is the first in this competition.
宾语
We all had a second pizza.
04
主语
The second is what I really need.
语法成分
01
02
03
序数词前面一般要加定冠词the
The first student to come to school is usually Jim.
序数词前面有名词所