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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; twelve 131939 加重读-teen 结尾特殊:thirteen; fifteen;eighteen 2090 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(
2、几百几) hundred+and+两位数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: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
3、; second; third 419在基数词后加 th特殊:5;8;9;12 2090 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: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 fiftee
4、n 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。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 five 5)百分数表达法;5%读 five per
5、 cent; 0.6 读 zero point six per cent 6)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: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: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.A
6、ugust is the _ month of a year. 5.Wednesday is the _day of a week. 6.Thursday is the _day of week.7._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
7、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 playground._ 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 :
8、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 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
9、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 _(1992/09/08) 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
10、).综合测试综合测试 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.Its 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
11、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 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
12、 millions C.six million of D.six million 3. -When was the PRC founded? -It was founded on _. A. July 1, 1921 B. October 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 Engl
13、ish. A.Two three B.Two third C.Two thirds D.Second three 6. 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 twelve oclock. A. two more hours B. t