1. 表年代（分两部分）1995：nineteen ninety-five 2003：two thousand and three 2. 时间： ⑴ 先“时”后“分” 5:20 five twenty. ⑵“分”+ past / to+“时” 5:20 twenty past five 11:40 twenty to twelve 7:10 ten past seven 9:50 ten to seven 6:25 twenty-five past six ⑶ 半（30分）half, 一刻（15分）quarter 5:30 half past five 6:15 a quarter past six 8:45 a quarter to nine. ⑷ 整点可加o’clock 6:00 six o’clock ⑸ it作主语表时间，用at表“在。。。时刻” It’s six o’clock now. I get up at six o’clock. ⑹ a.m. 表上午、午前，p.m.表下午、午后 7:20a.m. 6:50p.m 3. 电话、车牌号码：分读，相同数用double 2261887 double two six one double eight seven 4. 长、宽、高、深计量单位：基数词 + meter((s) / kilometer(s) / kilo(s) + 形（deep, long, heavy…） 400米宽 3000公里长 32 公里远 2 米深 5. 货币单位：＄7.35 seven dollars thirty-five cents ￡3.75 three pounds seventy-five pence ￥5.21 five yuan twenty-one fen (dollar, cent, pound有复数形式变化，yuan, fen, pence无) 6. 表编号 Lesson Nine = Unit Two = Page 5 Room 203 No.3 bus. 7. 数的计算： is two and seven? / is two plus seven? It’s nine. 8. 温度及比赛分数：The temperature will be 2-9 (two to nine). We won 2:1 (two to one) 9. 数字的具体表达与约略表达： ⑴ 具体表达 ten books two hundred students three million trees forty billion people ⑵ 约略表达 hundreds of people(数百人) millions of trees（数百万棵树） 注意：(several, many, some) thousand(s of) people hundred of the books这些书中的一百本 10. 其它表达： ⑴ 在九十年代 in the nineties ⑵ 在我二十多岁时 in my twenties in one’s+基数词复数 ⑶ 半个小时 half an hour ⑷ 一个半小时 one and a half hours / one hour and a half ⑸ 一两个小时 one or two hours / one hour or two 注意：1. 由基数词和名词加连字符构成的复合词作前置定语时，名词用单数。 a five-year-old boy an eight-hundred-word text a ten-minute walk a nine-meter-deep hole 2. 基数词的副词形式 once, twice, three times
四、序数词的运用 1. 一般要加the表示顺序, the First Lesson the Third Floor 2. 有限定词时，不用the, This is Lily’s second pen. It’s our first lesson. Mary is my first teacher. 3. 用a / an + 序数词，表“another…, one more…”含义。 I need a third pen. (= ) 4. 序数词作表语，谈论考试、比赛获得的名次时，常不用the. Who was second in the high jump? 5. 修饰动词，不用the. He stands first in the team. = He is the head of the team. 6. 表世纪 in the twentieth century at the end of the twentieth century in the seventies of the 19th century. 在十九世纪七十年代，写作 in the 1870s. 7. 修饰最高级：the +序数词+最高级+单n. The Yellow River is the second longest river in China. 8. 体育比赛的阶段 in the first half of the match上半场 in the second half of the match下半场 9. 表顺序 He come here for the first time. the first three rows 前三排 10. 习语 at first 五、基数词和序数词的合用 1. 年、月、日 1999.9.10：Sep.10th,1999 September the tenth nineteen ninety-nine 2. 分数：基 / 序 2/3：two thirds 1/2: a half / one second 3/4: three quarters / three fourths. 当分数与名词连用时，分数+ of +名词+ v.(由名词决定) Two thirds of the money paid for the book. Three quarters of the world’s books written in English.
数词专练 一、选择 1. The computer of this kind can work than the one of that kind. A. hundred of times faster B. a hundred time faster C. hundred times faster D. hundreds of times faster 2. We are going to learn next week. A. Lesson Twelve B. Lesson twelfth C. twelfth lesson D. the lesson twelfth 3. About of the workers in that car factory are young people. A. third-fifths B. three-fifths C. three-fives D. three-fifth 4. The hero of the story is an artist in his . A. thirtieth B. thirties C. thirty 5. student
