数词
数词：主要考察基数词变序数词；但也有例外one-once; two-twice; 或分数词two______(three)
I、基数词
1. 拼写下列单词
2-______________ 11-_______________ 12--_______________ 13-_______________ 14-_______________
15-_______________ 19-______________ 20-______________ 40-_______________ 90-_______________
36-_____________________________ 【注意十位数和个位数之间有_______________】
两百-_____________________ 数千-_______________________ 百万-_____________ 十亿-_____________
2. 数词读法 【百位数和十位或个位数之间，可以加and, 也可以省略】
12,345,678,909 读作____________________________________________________________________________
_____________________________________________________________________________________________
3. 特别注意：“百”“千”等前面有several, some, many等词，要用____________(单数或复数)
e.g. 几百___________________________
4. 数以万计_________________________________ 数亿___________________________________________
II、序数词 (重点考察)
1. 牢记口诀：基变序，有规律，一二三，特殊记。“th”从四上起。八减“t”，九去“e”，“f”来把“ve”替。“ty”变成“tie”。二十几、三十几要注意，首数为基，尾为序。
2. 把下列基数词变序数词
one-____________ two-____________ three-____________ four-____________ five-____________
eight-___________ nine-___________ twelve-___________ twenty-__________ thirty-six-________
【注意：one可能变成once； two可能变成twice 】 【at once意为____________; at first意为___________】
3. 序数词表示顺序前一般要加定冠词“the”或其他代替词，如one’s; this等。
注意：在表示比赛顺序时可以省略 the e.g.He was ____________(第一) in the boys’ 100-metre race.
4. 序数词前加不定冠词“a”则表示“再一，又一”的含义。
e.g. Both of the two rulers are broken. I want to buy a ___one. A. three B. third C. fourth D. /
5. 序数词可以和形容词的最高级连用，表示“第几最…”。
练：他是我们班第一最好的学生。___________________________________________________
注意：the third time 意为__________________; a third time 意为_____________________________
III、分数、小数和百分数
1. 子______母_______, 子非一,母加________
e.g. 2/3:___________________; 1/4:_____________________或_________________________
1/2:____________________或________________________
【其他表示分数词的用法：2/3 two in three; two out of three 】
注意：分数词作主语，谓语动词要根据名词判断。
e.g. Three fifth of the food_________(be) eaten yesterday.
Two thirds of the students ___________(be) playing over there now.
2. 小数点读成___________; 小/数点后面的数字是几就读几。
e.g. 1.05____________________________; 8.67______________________________________
3. 百分比 percent，没有复数形式。
e.g 80%__________________________; 45%_______________________________________
IV、数词的运用
1. 用基数词来表示编号时，应放在名词之后，且不需任何冠词。
e.g. Room 301 301号房间 203路公交车______________________
2. 日期表达法——习惯以“月 日， 年”的结构表达
1)年份：2000-two thousand 1789-seventeeneighty-nine 1900 nineteen hundred
2)日期：5月10日 写作：May 10 / May 10th；读作： May the tenth / the tenth of May
2011年9月17日 写作：September 17(th),2011；
对日期提问用：__________________________________________________________
3. 时间：
1) 顺读法：顺眼看时间，是几就读几。
练：9:15______________________________; 7:45 __________________________________
2) 逆读法：
a. 30分钟内：分在前，点在后，past放中间
练：6:25_______________________________; 4:15_________________________________
b. 30分钟外：分用60减，点钟要加一，to把它们连
练：11:45_______________________________; 12:50________________________________
c. 半点：half past + 点钟
练：9:30 _______________________________; 12:30__________________________________
注意：用___________________________?或__________________________________提问时间。
一刻钟_________________________ 45分钟________________________________
4. 其他
1) 年代：在18世纪60年代_____________________; 在16世纪早期_________________________
对比：在1900年______________________
2) 在…多大岁数：在他70多岁时_____________________; 在我40几岁时___________________
3) “名词+数词”构成的短语，一般首字母要大写。
练：九年级3班________________________________; 第八页___________________________
4) another + 基数词 + 名词复数 = 基数词 + more + 名词复数 ——又、再、另
We need ___________________________________=_____________________________________(另外10个人).
微练习
1. She didn’t think _______________(two) about helping the stranger who was in trouble.
2. To find a better job, Tom learned a_____________(two) language after graduation.
3. Two____________(three) of the students in my class are playing on the playground.
4. The man lost his job in his _______________(thirty).
5. Danny only came in ________________(twenty) in the competition.
6. The children always go to visit their grandparents ____________(one) a week.
7. Let me teach you how to make some cookies for his ____________(forty) birthday. ____________(one), crushed(捣碎) a pancake. Then for the ___________(two) step, mixed it with cheese and two eggs.
8. After reading the book ____________(two), I have a deeper understanding of it.
9. I am in the ____________(nine) grade now, and I’m leaving school.
10.How happy we were! This is the _____________(eight) time we beat them.
11.There are _________________(thousand) of birds in this forest.
12.At__________(one), his paintings were dark.
13. When the fire alarm rang, everyone left the building at __________(one).
