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1、_新世纪 教育培训辅导材料-中考英语语法专项复习4_数词详解及专练_表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。中考对数词的考查重点是基数词、序数词的用法、分数及hundred,thousand,million的用法。4.1基数词：表示数目多少的数词叫基数词。其构成如下表：数字基数词形式例词012各自独立zero; twelve131939加重读-teen结尾特殊：thirteen; fifteen;eighteen2090整位数以-ty结尾twenty; thirty; forty两位数（几十几）整位数-个位数ninety-nine三位数（几百几）hundred+and+两位数
2、Seven hundred and eighty-two782多位数从右向左数，每隔三位数加一个逗号，依次读作thousand,million,billion;逗号中间按三位数读。76,832,154,968注：“hundred; thousand, million, billion前有具体数字时不能加s；与of 短语连用，表示概数，意为“数以计的”，不能与具体数字连用，但前面可用several,some,many等词修饰。4.2序数词：表示顺序的数词叫序数词。其变化如下表：数字序数词变化规则例词1,2,3特殊记忆first; second; third419在基数词后加th特殊：5；8；9；
3、122090整位数ty变为tie再加thtwenty-twentieth两位数或多位数（整数除外）只变个位数（hundred等只在词尾加th）thirty-five-thirty-fifth4.3数词的用法： 1）分数表示法：分子基数词，分母序数词；分子大于1，分母加“s”。如：1/3_5/7_1/2_1/4_3/4_2）时刻表达法：只读基数词：9:15读nine fifteen ; 5:00读five(oclock) 30分钟，用past: 7:15读fifteen past seven 30分钟，用to：7:40读twenty to eight.3)日期表达法: 年份：两位一读，用基数词。
4、1975_;2012_年月日：年用基数词，日用序数词。1998、5、21_in the+年份复数表示“在世纪年代”。in the 1980s_in ones twenties/ thirties/在某人20多岁/30多岁/时. in Toms fifties_4)小数表达法; 用基数词。5.5读 five point five; 12.135读twelve point one three five5)百分数表达法;5%读five per cent; 0.6读 zero point six per cent6)倍数表达法：一倍:once 两倍：twice两倍以上用基数词+times。7)其他用法
5、：1、“基数词+单数名词+形容词”如：一个五岁的男孩_.一座800米长的桥_2、“具体数字+单位词+形容词”如：6300米长_对应练习：考点一 根据句意填词。 1.There are _ days in a week. 2. There are _ seconds in one minute and _ hours in one day.3. There are _days in a year.4.August is the _ month of a year. 5.Wednesday is the _day of a week.6.Thursday is the _day of week.7
6、._is our Nation Day.8.The_ month of the year is February. 9. 2/3 and 1/4 is _. 10. August is the _ month of a year.考点二 写出下列数字对应的基数词和序数词 9_, _ 12 _, _ 15 _, _ 20_, _ 41 _, _ 100_,_222_,_考点三 讲错的地方画出来，并改在后面的横线上1.There are three hundreds people in our village._ 2.There are hundred of students on the pla
7、yground._ 3.Ten thousands students got together in Beijing Tianan Men Square._ 4.Thousands people are needed to finish the work._5.The population of this city is about three millions._ 考点四 用英语表示分数 :1/4 _3/4 _2/7 _9/10 _2/5 _考点五 用英语表示百分数 50% _97.3% _ 0.8% _ 3.5% _考点六 序数词前什么时候不用the 修饰 1._first lesson
8、is a little difficult. 2.I like _ fifth ball. 3. Who is that man, _ eighth in the row? 4.You must try it _ second time. 5.There were five girls in the room and _ sixth girl was coming in 考点七 表达时刻和日期 1.5:15_2.6:30_3.We often get up at_(6:00). 4.He came to school at _(7:45).5.I was born on _(1992/09/0
9、8) 6.Our school is over at _ (11:50). 考点八 几十岁 年代 1.The old man died _ (八十多岁时). 2.She left her hometown _ (在九十年代)3.The woman became a famous singer _ (在三十几岁时). 4.It was invented _ (在17世纪50年代). 综合测试 一、用所给词的适当形式填空 1.Today we will learn the _ (twelve) lesson. 2.I sit in the _ (two) row in the class. 3.I
10、ts August _ (twenty-one) today. 4.We have _ (45) sheep on the farm. 二、完成下面句子的英语翻译，每空一词 1.开始时我觉得有点点难。I found it a bit difficult _ _. 2.三分二的钱用于买书。_ _ _the money _ _ for books. 3.这些中哪个是第三有用的发明？Which of these is _ _ _ _ invention? 4.在20世纪初，中国很穷。_ _ _ _ _ _century, China was very poor. 5.跳高比赛的第二名是谁？ Who
11、was _ _ the high jump? 三、单选 1. -Whats 1/9 and 2/3? -_. A. Seven ninths B. Five sixths C. Seven ninth D. Five ninths 2. There are about_ people in this big town. A.six millions of B.six millions C.six million of D.six million3. -When was the PRC founded? -It was founded on _. A. July 1, 1921 B. Octob
12、er 1, 1949 C. August 1, 1927 D. May 1,1922 4. In our class _ of the students are girls. A. three fifths B. three fifth C. third five D. third fifths 5. _of the people there speak English. A.Two three B.Two third C.Two thirds D.Second three6. The number of the students in our grade _ about six _, _ of them are girls. A. are , hundreds , two thirds B. is , hundred , two third C. is , hundred, two thirds D. are , hundreds, two third 7. It is said that SARS has killed more than _ people worldwide. A. two hundreds B. two hundredss C. two hundreds D. two hundred 8.The doctor worked for _after twel
