- 405.50 KB
- 2021-05-09 发布
2018
届二轮复习
数词
1.
基数词、序数词和分数词的构成及基本用法。
2.
数词作主语时的主谓一致。
复习重点
基础知识
数词主要包括
基数词、序数词和分数词
。基数词是表示数目多少的数词,序数词是表示先后顺序的数词。分数词由基数词和序数词构成。
一、基数词
1.
hundred, thousand, million, billion, dozen, score
等前
有具体数字
或
several, a few
等修饰时
,一般
用单数
。它们的
复数形式后常接
of
短语
,
表示不确切数目
。
e.g. This vase is worth
several
hundred
dollars
.
There had been
dozens of
attempts
at
reform.
2.
表示
年岁
时,用“
in one’s +
逢十的基数词的复数
”。
e.g. in his forties
。
3.
表示
年代
时,用“
in the +
逢十的基数词的复数
”。基数词的复数
若用阿拉伯数字表示,可直接加
s
,也可加’
s
。
e.g. in the 1980’s / 1980s
。
二、序数词
1.
序数词前
通常
要加定冠词
the
或与
形容词性物主代词一起使用
,在句中可作主语、宾语、定语和表语等。
e.g.
the third
chance,
my first
language
2.
序数词前
也可
加不定冠词
,表示“
再一,又一
”。
e.g. She could not go through that
a
second time
.
三、分数词
1.
分数词是由基数词和序数词构成,
分子用基数词表示,分母用序数词表示
;除了分子为
1
的情况下,
序数词都要用复数形式
。
e.g. 1/3 one third
;
3/5 three
fifths
。
2. “
分数
/
百分数
+ of +
名词
/
代词
”作
主语
时,
谓语动词的数与名词或代词的数保持一致
。
e.g.
Two-thirds
of
her spare time
is
spent
on housework.
80 percent of
the houses
were
damaged in the big earthquake.
四、常见考点
高考对数词的考查主要集中在
年龄表达法
、
年代表达法
、序数词前加冠词及数词作主语时的
主谓一致
等。
【考例
】
Take the lift to the ________ (
第十
) floor, and you will find the gym.
(陕西
2014
单词拼写)
tenth
专项练习
根据括号内的汉语提示补全下面句子。
1. Adults catch real flu about once ____________________________ (
每五年
), scientists calculate, based on a field study.
2. There were a million people in Lahore in April 1948, _____________________ (
他们当中五分之二
) were housed in camps.
every fifth year / every five years
two-fifths of whom
3. The science editor of The Daily Telegraph has published ________ ______________ (
几千篇
) his articles since 1996.
4. Early ________________________ (
在二十世纪七十年代
) no one had any idea that the woman would become a millionaire by planting flowers.
several
in the 1970s / 1970's
thousand of
5. My grandpa looked quite healthy though he was ___________________ (
七十多岁了
).
6. When the computer failed ___________ (
又一次
), he drilled holes near the fan to help it cool faster.
in his seventies
a second time