数词的用法

玛丽莲梦兔
829次浏览
2021年02月07日 02:14
最佳经验
本文由作者推荐

脸上痣相图-

2021年2月7日发(作者:任雨萌)



数词的用法以及练习




数词



数词分基数词和序数词。基数词表示数目,序数词表示顺序。



一、基数词的构成




2


.


13


—

< br>19


的基数词以


-teen


结尾 。如:但


13


,


15

< br>,


18


较特殊,



13


—











15


—










18


—











。




3


.


20


—


90


的整十位均以


-ty


结尾。


如:



sixty


,


seventy


,


但


2 0


,


30


,


4 0


,


50


,


8 0


,


90


较特殊,



20


—









30


—











40


—










50


—










80


—





90


—










。




4


.


十


位


数


与


个


位


数


之


间


要


加

< br>连


字


符


号


“


-


”


,


如


:


28


—


tw enty-eight


,


96


—


ninety-six


。




5


.百位和十位(若无十位则和个位 )之间加


and


,如:


148


—


one hundred and forty-eight 406


—


four hundred and six


。




6


.


hundred


(百)

< p>
,










(千)


,













(百万)


,





(十亿)


等前面即使有具体的数词,


也不能在它们的后面加


s


。

< p>
如:


600


—


six h undred


,


8


百万—


-




7


.


2


,


510


=


two


thousand


five


hundred


and


ten


;


84


,


296


=


eight-four thousand two hundred and ninety- six


;
















8


.


hundred


,


thousand


,


million


用复数形式修饰名词时要用


“


of


+复 数名词”


,如:数以百计的年轻人


hundreds


of


young


people


;


数以千计的书


thousands of books


。


注意:


hundreds of


/


thousands


of


/


millions


of


+复数名词,其前面不能加具体


的数词,但可加


several


或



many


。遵循两无原则




9


.基数词+单数名词+形容词构成 合成形容词。如:一个五



2


1


.


1


—


12


的基数词是独立的单词,即:


























岁


的


男


孩


a


five-year-old


boy


;


一


座


800


米


长


的


桥





















;




10


.


句型 :


主语+


is


+

about


(大约)


/



over


=


more than


(超


过)


/


nea rly


(接近)


+具体数词+


mete r


(


s


)


/< /p>


kilometer


(


s


)


/


kilo


(


s


)


long


/



high


/


tall


/


deep


/


away


等。如:长江


长


6300< /p>


公里。



The Changjiang River is 6


,


300 kilometres long


.




二、序数词




1


.基数词变序数词可利用口诀巧记:


“一、二、三,特殊记 ,


八去“


t


”


,九去“


e


”


,


“


ve


”要用“


f

< br>”替,见“


y


”变成“


i


”和


“


e


”


,词尾加上“


th


”


, 若是遇到几十几,只变个位就可以。


”


第一、

< br>第二、


第三分别:










,









,











,


eight


—


e ighth


nine


—








,


five


—









,


twe lve


—









,


twenty


—









,


for ty


—


fortieth


,

< p>
twenty-five


—











。




2


.其余情况均在基数词后加


th


。如:



six


—


sixth,



nineteen


—


nineteenth


,



hundred


—



hundredth,


thousand

—


thousandth


等。




3


、


(


3


)序数词的缩写形式为:阿拉伯数字加上这个词的末尾

< p>
两个字母。




1st





2nd


,


3rd


,


4th


,


20th


,


21st


,


22nd


,


23rd



三、数词的用法



1.


基数词的用法



(1)


基数词在句中主要用作主语、


宾语、


定语、


表语、


同位语,


例如:




(2)


表示一个具体数字时,


hundred, thousand, million


一律不



3



用复数;在表示一个不确定数字时则用复数。例如:



Our


country


has


a


population


of


1,300


million


people.




There are three thousand students in our school.


After the war, thousands of people became homeless.


(3)


表示


“……


十


”


的数词的复数形式可用来表示人的岁数或年


代,例如:






He


is


in


his


early


thirties


.





He


died


still


in


his


forties


.





This took place in 1930s


.



(4)


表示时刻用基数词。例如:



We get up at six.






表示


“


几点过几分


”


,


用介词


past,


但须在半 小时以内。


例


如:



ten


past


ten,








a


quarter


past


nine,









half


past


twelve






表示


“


几点差几分


”


用介词


to,


但分数须在半小时以上。


例如:



twenty to nine,






five to eight,







a quarter to ten






表示


“


几点 几分


”


还可直接用基数词。例如:



seven fifteen,





eleven thirty,







nine twenty




2.


序数词的用法



(


1


)


(

< br>1


)序数词作定语时,一般要与定冠词或物主代词连用。




eg.



Tom


is


their


second


son.






He


is


the


first


one


to


come here.






John lives on the fifteenth floor


.




4



(


2< /p>


)序数词有时前面可加不定冠词来表示


“


再一


”


,


“


又 一


”


这


样的意思,例如:






We'll have to do it a second time


.






Shall I ask him a


third time


?




(


3


)表示 日期。



①年份,每两位数读一个词。②先月后日,日子要读成 序


数词。③先日后月,加


OF


。年,月 。日的话年放最后,用逗


号隔开。



(


4


)表示分数时,分子用基数词表示,分母用序数词表示。


分子大于


1


时,分母加

-s


。例如:



three fourths,





one second,














two fifths


(四、数词在生活中的应用




1


.钟点的表示:小时、点钟、分钟、秒钟要用基数词。




2


.编号的表示:



①



L


esson


One


=


the


first


lesson


第一课;



Bus


No


.


3


=


the


No


.


3bus 3


路公共汽车;



②



表


示住所 时不用“


No


.


”如:


302


房间—


Room 302


(读作:


room three o two


)


;



③



如


果编号 的数词比较长,一般用基数词。如:


Page


457


第


457


页;



⑤


电


话


号

< p>
码,


用


基


数


词,


可


单


个


读,


重


复


的

< br>数字


也


可


读

“


double


”


,


如:


3855633


—


th ree eight five five


(


double five


)



six


three three


(


double three


)


。




3


.年月日的表示:


。



4


.分数的表达:




5


.倍数的表达:一倍用

< p>
once


,两倍用









,两倍以上用基



5



数词+









。如:


5


倍









。




6


、小数的小数点读作


point


,零读作


o


[< /p>


点后面的数字按个位基数词依次读出。


数形式不能加


s


。



< br>u]或


zero,


小数


7


、


百分数


(%)


,< /p>


读作


per cent (percent),

< br>但不论是多少均用作单


8


、


表示 日期有两种说法和四种写法,


如:


2


月


1


号英语表达法


为:

< br>the first of February


而美语为


February (the) f irst,


但其书


写上可有四种写法①



February


1


②



February


1st


④



1/2


。



五、特殊用法



1


.数词作主语,谓语动词用单数。如:



Two months is quite a


long time


.


Four and two is six


.


What's two and three


?



2


.一个半小时(一年半,一个半月可类推)


one


/


an hour and


a half


=

















。




3


.不定冠词用在序数词前表又一、再一。如:


I've tried three


times


,


let me try a fourth time


.意为:我已经试过三次,让我

< p>
再试一次吧。




4


、基数词一般是单数形式,但下列情况,常用复数:






a.


与


of


短语连用,表示概数,不能与具体数目连



用,


如


scores of people


指许多人;






b.


< /p>


在一些表示



一排



或



一组



的词组里;





如:


They arrived in twos and threes.



他们三三两两的到达


了。






c.


表示



几十岁


< /p>


;






d.


表示



年代



,用



in +the +


数词复数;




6






e.


在乘法运算的一种表示法里,


如:


3 x 5 = 15 Three fives


is (are) fifteen.


5


、



半小时为


half


an


hour,


半天为


half


a


day,


半镑为


half


a


pound,


尽量避免用


half a year, half a month,


要用


six months,


two


weeks


或



fifteen


days


要注意的是


Half


of


the


work


is


done


Half of the books are sold.


当


Half


作名词时,其谓语


动词要看


of

< p>
后面的名词而定。如名词是不可数名词则用单数


谓语动词,如是复数名词时 ,则要用复数谓语动词。要注意的


是一个半的表达法,如:


On e


and


a


half


apples


is


left


on


the


table.


其名词要用复数,但谓语动词则要用单数。



6


、



在句首 的数字要用文字而不要用阿拉伯数字,如数字过大


则应放于句中,用阿拉伯数字。如:< /p>




There are 166 students playing on the ground.


[误]



60 students are playing on the ground.


[正]



Sixty students are playing on the ground.




案]



A.




加




and


/


plus






减





minus







乘




times





除




divide



by






初中英语数词练习(二)




7



[答



(


) 1. Lincoln was born on ________.



A.


February


12,


1809


B.


1809,


February


12


C.


1809,


12


February


D. February 1809,12


(


) 2. A _______ boy can sing the English song very well.



A.


ten-year-old


B.


ten


years


old


C.


ten- year-old


D.


fifth years old


(


) 3. An hour later, _____ minister was sent(


被发送


) to see


the


“


magic cloth


”



woven by those two men.



A. two


B. the second


C. the two


D. second


(


) 4. Abraham Lincoln was _______ President


(总统)


of


the United States.



A. 16


B. the 16


C. 16th


D. the 16th


(


) 5. Do you think there is any room for us ________ ?



A. two


B. the two


C. second


D. the second


(


)


6.


How


many


students


are


there


in


your


class?




________.



A.


Twenty


nine


B.


Thirty


and


two


C.


Forty-five


D.


fifties


(


) 7. Which number is wrong? _______.



A. Ninety


B. Ninteen


C. Ninth


D. Nineteenth


(


) 8. The People's Liberation Army was founded _______.



A. on August 1, 1927


B.


in 1927, 1 August


C. on August


1st, 1927


D. in August 1, 1927


(


) 9. The number 4,123 is read _______.



A.


four thousand one hundred and twenty- three


B. four



8



thousand and one hundred twenty-three



C.


four


thousand


and


a


hundred


and


twenty-three


D.


four thousands a hundred and twenty- three


(


)


10.


The


old


professor


still


works


hard


though


he


is


_________.



A.


in


his


sixty


B.


in


his


sixties


C.


in


sixties


D.


in


the


sixty


(


) 11. This classroom is ________ ours.



A. three times big as


B. as three times big as


C. three times


as big as


D. as big three times as


(


) 12. The basketball team of our school ranks ________ in


the match.



A. three


B. third


C. the three


D. the third


(


) 13. Which is the car that he drives? It's ________.



A.


fifty


two


B.


the


fifty-two


cars


C.


the


car


fifty


four


D. the fifty-fourth car


(


) 14. Which of the following is wrong? ________.



A.


He


is


a


fifteen- year-old


boy.


B.


He


is


at


the


age


of


15.


C. He is a boy of 15.


D. He is fifteen year old.


(


)


15.


Our


school


is


not


very


big.


There


are


only


________


students.



A.


nine


hundreds


of


B.


nine


hundred


C.


nine


hundreds


D. nine hundred of


(


)


16.


How


many


new


words


are


there


in


________


lesson?






There are only _________.



9

脸上痣相图-


脸上痣相图-


脸上痣相图-


脸上痣相图-


脸上痣相图-


脸上痣相图-


脸上痣相图-


脸上痣相图-