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数词是中考命题的热点之一,同学们期望决胜中考,可千万不能忽视这小小的数词。下面我们就来了解数词的一些基本用法。
1.基数词变序数词。其规律为:
1、2、3特殊记ffirst,second,third),加th从4起(fourth,fifth…),8少t,9去e,千万别忘记(eighth,ninth);遇5逢12,ve变f.(fifth,twelfth),整20列整90,y要变ie(twentieth,thirtieth,…);若是几十几,前基(基数词)后序(序数词)别记错(thirty-second)。
2.hundred,thousand,million,billion在构成具体的数目时用单数形式。如:
three hundred people
ten millian travellers
只有在表达不确定的数目时才加s,构成复数形式,如:
hundreds of数以百计的,成百上千的
thousands of数以千计的,成千上万的
millions of数百万的
这些词组前不能用具体数字,不过我们可以说a few/many thousands/millions of…
另外,我们来了解一下数词的下列用法:
twos and threes 三三两两地
tens of thousands of数以万计的
hundreds of thousands of 数十万的
He died still in his forties.他四十多岁就死了。
3.序数词常与定冠词the连用。如:
He is the first one to get to school every day.
The second truck carries more apples than the third one.
不过,序数词前如果有其它词修饰时,就要省略定冠词。如:
This is our first lesson.
Please answer my second question.
4.与数词有关的钟点表达法。
a.顺读法(钟点 分钟),如:
3:30 读成three thirty
8:45 读成eight forty-five
10:15 读成ten fifteen
b.倒读法(分钟 to/past 钟点),如:
3:30 读成half past three
8:45 读成a quarter to nine
10:15 读成a quarter past ten
在此,我们提一下分数和百分数的表达方法:
基数词作分子.序数词作分母。如:
1/5 读成one fifth
1/3 读成one third
若基数词大于一,分母用复数。如:
2/7 读成two sevenths
2/3 读成two thirds
百分数更简单,分子为基数词,再加一个percent,如:
80% 读成eighty percent
5.表示长度、时间、距离、金钱、号码等的数词作主语时,谓语动词用作单数。如:
5,000,000 dollars is a lot ofmoney.
Ten years has passed since he cameto our school.
另外,还要提醒一下有关数词的运算:
Five plus/and six is eleven.
Twenty minus one is nineteen.
Two times/multiplied by four is eight.
Fifteen divided by five is three.
责任编辑/张彩萍
1.基数词变序数词。其规律为:
1、2、3特殊记ffirst,second,third),加th从4起(fourth,fifth…),8少t,9去e,千万别忘记(eighth,ninth);遇5逢12,ve变f.(fifth,twelfth),整20列整90,y要变ie(twentieth,thirtieth,…);若是几十几,前基(基数词)后序(序数词)别记错(thirty-second)。
2.hundred,thousand,million,billion在构成具体的数目时用单数形式。如:
three hundred people
ten millian travellers
只有在表达不确定的数目时才加s,构成复数形式,如:
hundreds of数以百计的,成百上千的
thousands of数以千计的,成千上万的
millions of数百万的
这些词组前不能用具体数字,不过我们可以说a few/many thousands/millions of…
另外,我们来了解一下数词的下列用法:
twos and threes 三三两两地
tens of thousands of数以万计的
hundreds of thousands of 数十万的
He died still in his forties.他四十多岁就死了。
3.序数词常与定冠词the连用。如:
He is the first one to get to school every day.
The second truck carries more apples than the third one.
不过,序数词前如果有其它词修饰时,就要省略定冠词。如:
This is our first lesson.
Please answer my second question.
4.与数词有关的钟点表达法。
a.顺读法(钟点 分钟),如:
3:30 读成three thirty
8:45 读成eight forty-five
10:15 读成ten fifteen
b.倒读法(分钟 to/past 钟点),如:
3:30 读成half past three
8:45 读成a quarter to nine
10:15 读成a quarter past ten
在此,我们提一下分数和百分数的表达方法:
基数词作分子.序数词作分母。如:
1/5 读成one fifth
1/3 读成one third
若基数词大于一,分母用复数。如:
2/7 读成two sevenths
2/3 读成two thirds
百分数更简单,分子为基数词,再加一个percent,如:
80% 读成eighty percent
5.表示长度、时间、距离、金钱、号码等的数词作主语时,谓语动词用作单数。如:
5,000,000 dollars is a lot ofmoney.
Ten years has passed since he cameto our school.
另外,还要提醒一下有关数词的运算:
Five plus/and six is eleven.
Twenty minus one is nineteen.
Two times/multiplied by four is eight.
Fifteen divided by five is three.
责任编辑/张彩萍