小升初英语数词专项讲解及练习
数 词
一、 数词的种类 数词分基数词和序数词
基数词是表示自然数列的词, 例如; one、two 、three 、four …..
序数词是表示先后顺序的词, 例如: first、second 、third 、fourth …
二 基数词和序数词的表示法
1.基数词单词的拼写:1~12为单词 one two three four five six seven eight nine ten eleven twelve
13~19
都以后缀-teen 结尾,20至90这样的整十数
都以后缀-ty 结尾,其他基数词中间加连字符
号“-”再按照上述的变化进行。
例:21→twenty-one
56→fifty-six 85→eighty-five
三位数的构成为:
几+百+and+末两位(或末一位)数
例:132→one hundred and thirty-two
205→two hundred and five
千以上的数字的读法:从后面往前,每三位数作为一个单位,分别为thousand 、million.
32、548、652、
读作:1.thirty two million
2.five hundred and forty
eight thousand
3.six hundred and fifty two
2. 序数词=基数词+th (1、2、3为 first 、
second 、third) 。数词分基数词和序数词
但以下几种情况要注意:
1) fifth (第五) 、 eighth (第八) 、
ninth (第九) 、twelfth(第十二)
2) 以ty 结尾的基数词变词尾为tieth
例:
twenty →twentieth
ninety →ninetieth
序数词表示十位与个位数时,十位与个位之间用“—”
3) 复合序数词只需要将相应基数词中
最后一位变成序数词,其余不变。
例:第二十一→twenty-first
第二百四十五→two hundred and
forty-fifth
三 基数词序数词的用法
1. hundred、thousand 、million 与数
字连用,表示一定量的具体数字,不
用复数,但表示不定概念可用复数
例:three hundred people
millions of people
2. 基数词表示时刻。
例:7点 seven o’clock
7:20 seven twenty
3. 给某些事物编号
例:Lesson One=the first lesson
7月1日=July I (July Ist)
1996年6月3日=June 3, 1996
=June the third, nineteen ninety-six
4.in+one’s+整数数词的复数形式表示年龄
例:The old woman is in her nineties.
He is his early forties.
5. 有关倍数表示法
两倍用twice, 三倍以上用数词+times, 要注意倍数在句子的位置。例:
例:The door is three times the size of this.
He is double my age.
数词-Practice 练习吧
1. 写出下列数词对应的英语形式。
2. 单项选择
( ) 1. There are____days in a week.
A.the seven B. seventh
C. the seventh D. seven
( ) 2. I think that the _____ century (世纪) will bring us more hopes.
A. twenty-one B. twentieth-first
C. twenty-first D. twentieth-one
( ) 3. --How many students are there in your school?
--___ the students in our school_____ over two thousand.
A. The number of ; is B. The number of ; are
C. A number of ; is D. A number of ; are
( ) 4. The new student is in_____ .
A. Class 2 B. Class Second
C. 2 Class D. class 2
( ) 5. --How many teachers are there in your school?
-- _____,but I’m not sure.
A. Hundreds B. Hundred
C. Hundreds of D.One hundred
( ) 6. _____of the teachers in our school is about one hundred, and of them are ___ women teachers.
A. The number, two-thirds B. The number, two-thid
C. A number, half D. A number, three-quarters
( ) 7. -- Dad , when will you be free?
-- I am sorry, Jean. But I think I will
have a ___holiday soon.
A. four-days B. four-day
C. four days D. four day
( ) 8. Fan Zhiyi’s transfer to Dundee Football Club at the end of last year aroused (激起) ____Chinese people’s interest.
A. thousand of B. thousand
C. thousands of D. thousands
( ) 9. This story happened on____ .
A. 1989, Oct 21st B. Oct. 21st ,1989
C. 21 Oct, ber , 1989 D. 21st of Octber, 1989
( )10. "Seven five" can be written____.
A. five sevens B. five to seven
C. seven fives D. five past seven
( ) 11. The English for 10,440 is____ .
A. ten thousand , four hundreds and forty
B. ten thousand, four hundred and forty
C. ten thousands, four hundred and forty
D. ten thousand and four hundred, forty
( ) 12. ____of the workers in the factory is about two hundred, ____of them are _____women workers.
A.The number, first-third B. The number, one-third
C. A number, half D. A number, three quarters
( ) 13. --- Can you write the number eighty- five thousand , six hundred and twenty-six? --- Yes, it is____ .
A. 85662 B. 85626 C. 85006 D. 85620
( ) 14. About ____of the books in our school library are written in Chinese.
A. Fourth -fifths B. four – fifth
C. four –fifths D. fourths-fifth
( ) 15. The road is over____ meters long.
A. six hundred and fifty-two B. six hundreds and fifty two
C. six hundred, fifty –two D. six hundred, fifty and two
( ) 16. January____ is New Year’s Day.
A. one B. two C. the first D. the second
( ) 17. Take the____ turning on your night.
A. nine B. ninth C. nineteen D.nineth