1、语法专项突破 专题四 数词 考点一 基数词（表数量） 数字 基数词形式 例词 0 12 各自独立 zero 0； one 1； nine 9； twelve 12 13 19 3 9重读 teen 结尾 特殊： thirteen 13； fifteen 15； eighteen 18 一般： fourteen 14； sixteen 16 20 90 整位数 以 ty 结尾 twenty 20； thirty 30； forty 40； fifty 50； eighty 80来源 :学。科。网 Z。 X。 X。 K 两位数（几十几） 整位数 个位数 thirty five 35 三位数（几百几
2、） .hundred and两位数 six hundred and sixty six 666 多位数 从右向左数起，每隔三位数加一个逗号，依次读作 thousand（千）、million（百万）、 billion（十亿），逗号中间按三位数读 89,696,787,656 eighty nine billion， six hundred and ninety six million， seven hundred and eighty seven thousand， six hundred and fifty six 考点二 序数词（表顺序） 数字 序数词变化规则 例词 1、 2、 3 不规则变
3、化 first， second， third 4 19 基数词尾加 th 特殊： fifth 第五； eighth 第八； ninth 第九； twelfth第十二； 一般： fourth 第四； nineteenth 第十九 20 90 整位数 ty 变为 tie 再加 th twentytwentieth ； ninetyninetieth 两位数或多位数（整数除外） 只变个位数（ hundred，thousand 等只在词尾加 th） twenty third 第 23； one hundred and fifty ninth第 159； hundredth 第 100 【提醒】（ 1）
4、序数词要加定冠词 the，但若序数词前有形容词性物主代词或名词所有格时省略 the。 This is our first lesson.这是我们的第一节课。 （ 2）序数词前加 a/an 表示 “又一，再一 ”。 Even though the Browns have 3 children， they still want a fourth one. 尽管布朗夫妇已有 3 个孩子，可他们还想再要一个。 考点三 分数 1分数的表达 （ 1）分子用基数词，分母用序数词；如果分子大于 1，分母要用复数形式。 3/4 three fourths 4/5 four fifths （ 2）在英语中， “四
5、分之一 ”常表示为 a quarter； “四分之三 ”表示为 three quarters； “二分之一 ”表示为 a half。 （ 3）百分数的表达方式是：基数词 percent。 Forty percent of the students in our class are from cities. 我们班有 40%的学生来自城市。 2分数的用法 “分数 of限定词名词复数 ”作主语时，谓语动词应用复数形式； “分数 of限定词不可数名词 /名词单数 ”作主语时，谓语动词应用单数形式。但 “分数 of限定词 population”作主语时，谓语动词应用复数形式，此时 population
6、意为 people。 One half of the stu dents are from China in this school. 这所学校一半学生来自中国。 Two thirds of her money is spent on clothes. 她把三分之二的钱花在了衣服上。 Three fourth of the population in Singapore are Chinese.来源 :Z&xx&k.Com 新加坡四分之三的人是中国人。 1（ 2012 湖南郴州中考， 34） Last year， one hundred English teachers took part i
7、n the _ English Summer Training. A two month B two months C two months 2（ 2012 湖南郴州中考， 29） Li Jiacheng plans to give _ of his money to the charity. Really？ What a kind man he is! A one third B one three C one thirds 3（ 2012 四川广安中考， 26） Guangan is a beautiful city， isnt it? Yes.There are about two _
8、visitors here every week. A thousands of B thousands C thousand 4（ 2012 四川南充中考， 30） I think _ should not be allowe d to drive. A sixteen years old B sixteen year old C sixteen year olds 5（ 2012 广东佛山中考， 34） Three students ran faster than Lily in the race.Lily was_.来源 :Z#xx#k.Com A the fourth B four C
9、 the third 6（ 2011 湖北恩施中考， 32） He wrote his _ novel when he was _. A five； fifties B fifth； fifty C fifth； fiftieth 7（ 2012 四 川自贡中考， 23） I hear your friend is visiting Sanya again.Is it the second time for him? Yes， and he will come for _time next spring. A a third B a second C the third 8（ 2012 福建宁
10、德中考， 34） Excuse me， which is the way to the museum? Sorry， I dont know.This is my_ time here. A first B second C third 9（ 2012 福建南平中考， 27） Thanks to Project Hope， _ children have better lives. A thousands of B thousands C thousand 10 The work is too difficult for Mr Zhu to finish in a week.He needs
11、_ days. A more two B two more C two another 11 The road is over _ meters long. A six hundred and fifty two B six hundreds and fifty two C six hundred， fifty two 12 _ of the land in that district _ covered with trees and grass. A Two fifths； is B Two fifth； are C Two fifth； is 13 About _ of the worke
12、rs in the factory were born in the _. A two thirds； 1970 B two thirds； 1970s C two third； 1970 14 _ of the warm water _ already been used up. A Two third； has B Two third； have C Two thirds； has 15 Its 7： 45. Yes， its _. A a quarter past seven B a quarter to eight C fifteen past seven oclock 16 Do y
13、ou have enough students to clean the laboratory? No， I think we need _ students. A another B two others C two more 17 The government of Chongqing is building _ cheap and good houses for the people. A thousand B thousands of C thousand of 18 Well be back for our schools _ anniversary ceremony. I see.
14、That means youll have a get together with your classmates in _ years. A fifteen； seven B fifteenth； seven C fifteen； seventh 19 Good news！ Bill won _ medal in the long jump just now. Really？ Thats his _ one at our sports meeting. A a； four B an； fourth C a； fourth 20 Nowadays _ of business letters a
15、re written in English. A two third B two thirds C two three 21 Nearly _ of the earth _ covered by se a. A three fourth； is B three fourths； is C three fourth； are 22 What class are you in? Im in _. A Grade Two， Class Five B Class Five， Grade Two C class Five， grade Two 23 Whats the date today? Its _. A December one B December the fir st C the December first 24 How many teachers are there in your school? _， but Im not sure. A Hundreds B Hundred C One hundred 25 Was he born in _ century? No， he was born in the _. A twenty one； 1990 B the twenty first； 1990 C the twenty first； 1990s
