复习重点基数词、序数词的构成基数词、序数词的运用.docx

复习重点：1、基数词、序数词的构成2、基数词、序数词的运用3、基数词和序数词的合用一、基数词的构成：1. 112独立成词;13-19是以相对应的39力口后缀-teen构成;20-90整十位数由相 对应 29 加后缀-ty 构成。注意特殊拼写:thirteen, fifteen, eighteen , twenty, thirty, forty, fifty, eighty.2. 21-99 由“十位加个位"，中间用"J, twenty-one, ninety-nine, forty-five101-999:百位数 + hundred + and + 后面的一或两位数。101one hundred and one.978->nine hundred and seventy-eight 520一five hundred and twenty4.1000以上的大数，使用计数逗号/，从个位数往前，三位加一逗，分别为thousand, million, billion.5.写出以下数字:12 16 14 17 1960 70 90 58 35 44313 555 803 2401061二、序数词的构成序数词构成歌：第一、二、三要全变，first, second, third,其余把 th 加后边，fourth, tenth, hundredth.th里有例外，你需格外记明白：8 减"t"eighteighth ,9 去nineninth ，字母 f 代 ve five-fifth, tweke-twelfth ,ty 变成 tie , twenty - twentieth, thirty thirtieth , forty fortieth两位数在个位数变,twenty-one twenty-first thirty-five thirty-fifth三、基数词的运用1 .表年代（分两局部）1995:nineteen ninety-five 2003:two thousand and three.时间：（i）先时后分 5:20 five twenty.分 + past / to+ 时 5:20 twenty past five 11:40 twenty to twelve7:10 ten past seven 9:50 ten to seven 6:25 twenty-five past six（3）半（30 分）half, 一刻（15 分）quarter5:30 half past five 6:15 a quarter past six 8:45 a quarter to nine.（4）整点可加 o' clock 6:00 six o' clockit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.（6）a.m.表上午、午前，p.m.表下午、午后7:20a.m. 6:50p.m. 、车牌号码:分读，相同数用 double double two six one double eight seven2 .长、宽、高、深计量单位:基数词 + meter(s) / kilometer / kilo(s) + 形(deep, long, heavy.)400米宽3000公里长32公里远2米深.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).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? Itz 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).数字的具体表达与约略表达：(1)具体表达 ten books two hundred students three million trees forty billion people 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.其它表达：(1)在九十年代in the nineties 在我二十多岁时in my twenties in one7 s+基数词复 数(3)半个小时 half an hour(4)个半小时 one and a half hours / one hour and a half(5)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。afive-year-old boy an eight-hundred-word text a ten-minute walk a nine-meter-deep hole2.基数词的副词形式once, twice, three times四、序数词的运用.一般要加 the 表示顺序，the First Lesson the Third Floor1 .有限定词时，不用the,This is Lily' s second pen. Itz s our first lesson. Mary is my first teacher.2 .用 a / an + 序数词，表"another., one more.”含义。I need a third pen.(=).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?3 .修饰动词，不用 the. He stands first in the team. = He is the head of the team.4 .表世名己 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.5 .修饰最高级:the + 序数词+最高级+单 n. The Yellow River is the second longest river in China.6 .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.表顺序 He come here for the first time, the first three rows 前三排7 .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.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 fasterC. hundred times faster D. hundreds of times faster2. We are going to learn next week.A. Lesson Twelve B. Lesson twelfth C. twelfth lesson D. the lesson twelfthAbout of the workers in that car factory are young people.A. third-fifths B. three-fifths C. three-fives D. three-fifthThe hero of the story is an artist in his .A. thirtieth B. thirties C. thirtystudent