英语数词知识点汇总
英语数词知识点汇总基数词 表示数目多少或顺序先后的词叫数词。 1.基数词的构成：1-10 one, two, three, four, five, six, seven, eight, nine, ten;11-19 eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen;20-90 twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety; 100100 a/one hundred;1,000 a/one thousand;1,000,000 a/one million;1, 000,000,000 a/one billion = a/one thousand million2. 基数词的用法1)作主语：Three will be enough for us.三个对我们来说就足够了。Two of the girls are from Tokyo.这些姑娘中有两位来自东京。2)作宾语：Four people applied for this job, but we only need one.四个人申请这工作，但我们仅需一人。3)作表语：The population of China is over 1.3 billion.中国有十三亿多人口。Im twenty while my brother is sixteen.我二十岁，我弟弟十六岁。4)作定语：We have 300 workers in our company.我们公司有三百名员工。Forty students were involved in the interview. 四十名学生参加了这次采访。5)作同位语：You two clean these seats.你们两个打扫这些位子。Have you got tickets for us three?有我们三个人的票吗? 序数词 表示顺序或等级。1. 序数词的构成：1-10：first 1st; second 2nd; third 3rd; fourth 4th; fifth 5th; sixth 6th; seventh 7th;eighth 8th; ninth 9th; tenth 10th；11-19：eleventh 11th; twelfth 12th; thirteenth 13th; fourteenth 14th ;fifteenth 15th; sixteenth 16th; seventeenth 17th; eighteenth 18th;nineteenth 19th；20-90：twentieth 20th; thirtieth 30th; fortieth 40th; fiftieth 50th; sixtieth 60th;seventieth 70th; eightieth 80th; ninetieth 90th；100： 100 hundredth；1,000 thousandth；1,000,000 millionth；1,000,000,000 billionth 2、序数词的用法 1）作主语：The second is what I really need.第二个是我真正需要的。The first bottle has been full but the second is empty.第一个瓶已满，但第二个还空着。2）作宾语：I got a third in biology.我生物得到了第三名。Do you prefer the first or the second?第一个和第二个你更喜欢哪一个呢？3）作表语：I will be the first to support you and the last to oppose you.我将是第一个支持你的人，也是最不会反对你的人。Columbus was the first who discovered America.哥伦布是第一个发现美洲的人。4）作定语：Ill try a second time and see if I can do it.我还要试一次，看看我能否做得了。Take the first turn to the right and then the second turn to the left and youll get there.在第一个转弯处向右转，然后在第二个转弯处向左转就到了。5）作状语：He came second in the race.他在赛跑中得了第二名。It was a snowy day when we first met.我们初次见面时是一个下雪的日子。3、 序数词前冠词的使用1） 明确指明了先后顺序或一系列事物按一定的规律排列时，序数词前用定冠词。This is the second time that I have been in London. 这是我第二次来伦敦。Alva is the fifth child of the Whites.阿尔瓦市怀特家的第五个孩子。2） 表示“又一、再一”，不强调顺序时，序数词前用不定冠词。You have bought four toys today. Why do you want to buy a fifth one?今天你已经买了四个玩具了，为什么还想再买一个呢？I failed again, but I will try a third time.我又失败了，可是我要再试一次。3） 序数词前有形容词性物主代词、名词所有格或其他修饰语时不用任何冠词。My first five years of childhood was spent with my grandparents.我五岁前是和祖父母一块度过的。Mrs. Blacks second child is a genius.布莱克夫人的第二个孩子是个天才。4） 序数词与名词构成复合形容词时，冠词由被修饰词而定。此时序数词是复合形容词的一部分而不是独立的，前面的冠词完全由这个形容词所修饰的名词而定。This MPV car is a second-hand one.这辆商务车是二手的。Habit is second nature.习惯是第二天性。5） 序数词还可作副词，此时不用任何冠词。First I am short of money; second I havent enough time.首先我缺钱，其次我没有足 基数词 表示数目多少或顺序先后的词叫数词。 1.基数词的构成：1-10 one, two, three, four, five, six, seven, eight, nine, ten;11-19 eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen;20-90 twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety; 100100 a/one hundred;1,000 a/one thousand;1,000,000 a/one million;1, 000,000,000 a/one billion = a/one thousand million2. 基数词的用法1)作主语：Three will be enough for us.三个对我们来说就足够了。Two of the girls are from Tokyo.这些姑娘中有两位来自东京。2)作宾语：Four people applied for this job, but we only need one.四个人申请这工作，但我们仅需一人。3)作表语：The population of China is over 1.3 billion.中国有十三亿多人口。Im twenty while my brother is sixteen.我二十岁，我弟弟十六岁。4)作定语：We have 300 workers in our company.我们公司有三百名员工。Forty students were involved in the interview. 四十名学生参加了这次采访。5)作同位语：You two clean these seats.你们两个打扫这些位子。Have you got tickets for us three?有我们三个人的票吗? 序数词 表示顺序或等级。1. 序数词的构成：1-10：first 1st; second 2nd; third 3rd; fourth 4th; fifth 5th; sixth 6th; seventh 7th;eighth 8th; ninth 9th; tenth 10th；11-19：eleventh 11th; twelfth 12th; thirteenth 13th; fourteenth 14th ;fifteenth 15th; sixteenth 16th; seventeenth 17th; eighteenth 18th;nineteenth 19th；20-90：twentieth 20th; thirtieth 30th; fortieth 40th; fiftieth 50th; sixtieth 60th;seventieth 70th; eightieth 80th; ninetieth 90th；100： 100 hundredth；1,000 thousandth；1,000,000 millionth；1,000,000,000 billionth 2、序数词的用法 1）作主语：The second is what I really need.第二个是我真正需要的。The first bottle has been full but the second is empty.第一个瓶已满，但第二个还空着。2）作宾语：I got a third in biology.我生物得到了第三名。Do you prefer the first or the second?第一个和第二个你更喜欢哪一个呢？3）作表语：I will be the first to support you and the last to oppose you.我将是第一个支持你的人，也是最不会反对你的人。Columbus was the first who discovered America.哥伦布是第一个发现美洲的人。4）作定语：Ill try a second time and see if
