
(整理)数词、连词.doc
6页数 词数词主要分为基数词和序数词基数词表示数目,序数词表示顺序 一.基数词1. 构成:(1) 1—12 单独记 one,two,three,four,five,six,seven,eight,nine,ten ,eleven , twelve . (2) 13—19 词尾都有teen . thirteen, fourteen, fifteen, sixteen, seventeen,eighteen, nineteen.但thirteen, fifteen, eighteen需要特殊记3) 20—90 整十的词尾都以ty结尾twenty , thirty , forty , fifty , sixty , seventy, eighty , ninety . (4) “几十几” 要加连字符合“-”如:21 twenty-one 76 seventy-six(5) “几百几” 或“几百几十几” 加and.如: 101 one hundred and one 320 three hundred and twenty 648 six hundred and forty-eight (6) 千位数以上 从数字的右端向左端数起,每三位数加一个逗号“,”。
从右开始,第一个“,”前的数字为千( thousand ),第二个“,”前面的数字为百万 ( million ),第三个“,”前的数字为 十亿( billion )如: 2,648 two thousand six hundred and forty-eight 16,250,364 sixteen million two hundred and fifty thousand three hundred and sixty-four 5,237,166,234 five billion two hundred and thirty-seven million one hundred and sixty-six thousand two hundred and thirty-four 2. 用法:(1) 表示数量如:There are fifty students in our class. 我们班有50个学生2) 表示年龄和年份如:He was born in 1998. 他出生于1998年3) 表示时刻表示时间有两种方法:1. 钟点+分钟 如:8:20 eight twenty 2. 用介词past或to表示。
表示“几点过几分”用past,但分钟数须在30以内,分钟数放在past之前如: 9:16 sixteen past nine 10:28 twenty-eight past ten 表示“几点差几分”用to,但分钟数须在30以上,分钟数放在to之前如:9:40 twenty to ten 11:45 a quarter to twelve 7:55 five to eight (4) 表示顺序如:Class Five, Room 218.(5) 基数词在表示确切的数字时,使用百、千、百万、十亿的单数形式,如:two hundred 两百 five thousand 五千 但是,当基数词表示不确切数字时,则以复数形式出现,并与of连用如:There are hundreds of people in the hall. 大厅里有数以百计的人 Thousands of people come to visit the Great Wall every day.每天有成千上万的人来参观长城6) 表示人的不确切岁数或年代,用几十的复数形式表示in his thirties.在他三十多岁时,in 1950s在20世纪50年代。
7) “基数词+单数可数名词+形容词”作定语修饰名词如: a fourteen-year-old boy一个14岁的男孩二.序数词1. 构成:(1) “第一”, “第二”,”第三” 分别是first , second , third. (2) “第四” 到“第十九”除了fifth , eighth , ninth , twelfth是特殊的拼写外,其余的都是在相应基数词后面加th构成3) 整十的序数词由相应的基数词变y 为i 再加eth 构成如:twenty—twentieth thirty—thirtieth fifty—fiftieth ninety—ninetieth (4) 第一百hundredth 第一千thousandth 第一百万millionth(5) 有个位数的基数词只要变化个位数如:twenty-one ---- twenty-first seventy-five--- seventy-fifth 2. 用法:(1). 序数词表示顺序在用序数词表示顺序时,要在序数词前加the,序数词后的名词要用单数如: John lives on the fifteenth floor. 约翰住在第十五层。
2) 序数词表示日期日期可按日、月、年的顺序表示,也可按月、日、年的顺序表示年用基数词表示,日用序数词表示如: 1949年10月1日读作:October (the) first , nineteen forty-nine 2004年9月10日读作:September (the) tenth , two thousand and four (3) 分数的表示:分子用基数词,分母用序数词,分子大于1时,分母用复数如:1/4 one fourth 4/5 four fifths 3/4 three fourths ( three quarters) 三.数词的其他用法 : (1) 小数点的表示:小数点读作point,其余的按基数词读出如: 0.2 zero point two 3.4 three point four 5.78 five point seven eight (2) 百分数的表示:百分号读作percent. 0.5% zero point five percent 36% thirty-six percent(3) 表示倍数关系。
表示“一倍”once, 表示“两倍”twice, 表示“三倍”或“三倍以上的倍数用times. 如:Our school is twice as big as theirs. (4) 数词前加every,表示“每隔一段时间”如:every two days 每隔两天5) 与数目有关的词语half 一半, several 几个, a few 几个, a dozen 一打, a score 二十数词练习:( ) 1. Lincoln was born on ________. A. February 12, 1809 B. 1809, February 12 C. 1809, 12 February D. February 1809,12( ) 2. A _______ boy can sing the English song very well. A. ten-years-old B. ten years old C. ten-year-old D. fifth years old( ) 3. Do you think there is any room for us ________ ? A. two B. the two C. second D. the second( ) 4. ---How many students are there in your class? --- ________. A. Twenty nine B. Thirty and two C. Forty-five D. fifties( ) 5. Which number is wrong? _______. A. Ninety B. Ninteen C. Ninth D. Nineteenth( ) 6. The number 4,123 is read _______. A. four thousand one hundred and twenty-three B. four thousand and one hundred twenty-three C. four thousand and a hundred and twenty-three D. four thousands a hundred and twenty-three( ) 7. The old professor still works hard though he is _________. A. in his sixty B. in his sixties C. in sixties D. in the sixty( ) 8. This classroom is ________ ours. A. three times big as B. as three times big as C. three times as big as D. as big three times as( ) 9. Which of the following is wrong? ________. A. He is a fifteen-year-old boy. B. He is at the age of 15. C. He is a boy of 15. D. He is fifteen year old.( ) 10. Our school is not very big. There are only ________ students. A. nine hundreds of B. nine hundred C. nine hundreds D. nine hundred of( ) 11. ---How many new words are there in _____ lesson? ---There are only _____. A. five; fifth B. fifth; five C. the fifth; the five D. the fifth; five( ) 12. ________, Coca-Cola began to enter China's market. A. In 1970's B. In 1970s C. In the 1970s' D. In the 1970s( ) 1。












