1、数词语法的基本框架
（1）基数词：
1 2 3 4 5 6 7 8 9 10 | one two three four five six seven eight nine ten | 11 12 13 14 15 16 17 18 19 | eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen |
20 30 40 50 60 70 80 90 100 | twenty thirty forty fifty sixty seventy eighty ninety one(a) hundred | 23 35 101 千 百万 十亿 | twenty-three thirty-five one hundred and one thousand million billion |
（2）读数：108→one hundred and eight
（3）基数词→序数词
one
two
three
four
five
eight
nine
twelve
twenty
thirty
twenty-one
forty-six
【答案】First second third fourth fifth eighth ninth twelfth twentieth thirtieth twenty-first forty-first
（4）百、千、百万、十亿的用法
1. hundred housand millionillion前有数字不加 1 。
2. 用作名词时复数表示“成…上…”,后面必须要有 2 , 如：
(五百) 3 ,
(成百上千的) 4
【答案】
1. s 2. s of 3. five hundred 4.thousands of
（5）分数
“子基母序，子>1母加s。如：
1/5→ 1 ;
2/3→ 2 ;
4/7→ 3 ;
1/2→ 4 ;
1/4→ 5 ;
3/4→ 6 .
【答案】
1. one fifth 2. two thirds 3. four sevenths
4. a half 5. a quarter 6. three quarters
（6）次数
(一次) ,
（两次) ,
（三次）
【答案】
1.once, 2.twice, 3.three times
（7）倍数
1 (两倍），
2 (三倍）
as …as :表示. 3
如：He is as 4 as his younger sister.(他和他妹妹一样兴奋)
This room is 5 that one(这个房间跟那个房间的两倍大）
【答案】
1. twice 2. three times 3. 和.…一样
4. as excited as 5. twice as big as
（8）the 序数词与a 序数词的区别
1. the 序数词 意思为“ 1 ”
2. a 序数词 意思为“ 2 ”
如：John failed the test twice.But he would like to have 3 try. (约翰考试失败了两次，他想再试一次）
Hainan is 4 island in China.(海南是中国的第二大岛）
【答案】
1.第几 2. 再一次 3. a third 4. the second
（8）、数词的用法：
1、表示年份：
2002: twenty thousand and two ;
1976 : nineteen seventy-six.
2、表示日期：
12月1日: Dec.1st或the first of December；
2002年11月8日: Nov. 8th, 2002.
3、表示时刻：
5：15→ five fifteen或a quarter past five ;
8：30→ eight thirty或half past eight ;
10：45→ ten forty-five或a quarter to eleven.
4、表示编号：Room 105（105房间）; P.5（第5页）
5、年代的表达方式通常为“in the 数词的复 数”。如：in the 1980s 在20世纪80年代
6、“半”的表达：
1/2→ 1 ,
半小时→ 2 ,
1.5小时→ 3 或 4 .
7. 在我30多岁时 5
【答案】
1. a half 2. half an hour 3. one and a half hours 4. one hour and a half 5.In my thirties
二、用所给数词的适当形式填空
总结出以下规律：
1.Our team won the ______ prize in the competition.(two)
方法点拨 第1步：根据试题可知本题考查数词转换，且括号里给出的词是two；第2步：空格后给的名词为prize，且语境表示“我们队在比赛中获得第二名”，此处表示“第二”应用序数词。故填second。
2.I visit my grandparents ______ a week.(one)
方法点拨 第1步：根据试题可知本题考查数词转换，且括号里给出的词是one；第2步：空格后给的词组为a week，并联系语境可知此处表示一周一次。故填once。
三、数词在句子中运用
1.托尼的妈妈看上去年轻漂亮。难以想像她已经五十几岁了
Tony’s mum looks young and beautiful. It’s hard to she is already in her .
2. 我住在403房间。萨姆正好住在我的上面。在五楼。403房间在四楼，萨姆在上面，就是第五层楼
I live in Room 403, Sam in the room right above mine, on the _____ floor.
3. 鲍勃知道怎么砍工程的价格。我确信他能用更少的钱更少的人做这项工作。
Bob knows how to cut the cost of the project. I’m sure he can do the work with _____ money and ______ people.
4. 孩子们。请翻到第五页，看第五幅图画
Boys and girls, please turn to Page _____ and look at the _____ picture.
【答案】1.imagine ，fifties 2.lives，fifth 3.less,fewer 4.Five; fifth
二、翻译句子
1. 他在四十多岁时才出名。
2. 每年成千上万的树被种。
3. 你能再吃两块蛋糕吗？
4.父亲节在六月的第三个周日。
5.我们学校学生总数是1000，其中三分之二是女孩子。
【答案】
1. He became famous in his forties
2. Thousands of trees are planted every years
3. Would you like to have another two pieces of cakes
4. Father’s Day is on the third Sunday of June
5. The number of students in our school is 1000, and two thirds of them are girls
四、数词在语篇中的运用
Mr.Green is teacher in a middle school.In his 1 (三十多岁)，he went to Russia. He has lived Russia for about 2 (一年半). In the school, 3 of(总数） students 4 about 6 (两千).And about 6 (五分之三)students are boys. 7 (许多)boys like playing basketball.Tom is a 8 (十六岁的) student comes from 9 (三年级四班).He often plays basketball 10 (一周两次). Once The 11 (第二十届) World Basketball Championship began 12 the morning of May 25, 2010 13 Moscow, Russia.there were 14 (成千上万)people watching the game. But Tom didn’t go to watch because he had to stay in 15 (406室) with his classmates to study English.
【答案】
1. thirties
2. one and a half years
3. the number
4. is 5. two thousand
5. three fifths
6. a number of
8. sixteen-year-old
9. Class Three Grade Four
10. twice a week
11. the twentieth
12. on 13. in
14. thousands of
15. Room 406
声明：整理自网络，仅供大家学习！
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