復(fù)習(xí)重點(diǎn)基數(shù)詞、序數(shù)詞的構(gòu)成基數(shù)詞、序數(shù)詞的運(yùn)用

1、復(fù)習(xí)重點(diǎn)：1、基數(shù)詞、序數(shù)詞的構(gòu)成2、基數(shù)詞、序數(shù)詞的運(yùn)用3、基數(shù)詞和序數(shù)詞的合用一、基數(shù)詞的構(gòu)成：112獨(dú)立成詞;13-19是以相對(duì)應(yīng)的39力口后綴-teen構(gòu)成;2090整十位數(shù)由相 對(duì)應(yīng) 29 加后綴-ty 構(gòu)成。注意特殊拼寫:thirteen, fifteen, eighteen , twenty, thirty, forty, fifty, eighty.2199 由“十位加個(gè)位，中間用J, twenty-one, ninety-nine, forty-five101999:百位數(shù) + hundred + and + 后面的一或兩位數(shù)。101one hundred and one.9

2、78-nine hundred and seventy-eight 520一five hundred and twenty4.1000以上的大數(shù)，使用計(jì)數(shù)逗號(hào)/，從個(gè)位數(shù)往前，三位加一逗，分別為thousand, million, billion.5.寫出以下數(shù)字:12 16 14 17 1960 70 90 58 35 44313 555 803 2401061二、序數(shù)詞的構(gòu)成序數(shù)詞構(gòu)成歌：第一、二、三要全變，first, second, third,其余把 th 加后邊，fourth, tenth, hundredth.th里有例外，你需格外記明白：8 減teighteighth ,9 去

3、nineninth ，字母 f 代 ve five-fifth, tweke-twelfth ,ty 變成 tie , twenty - twentieth, thirty thirtieth , forty fortieth兩位數(shù)在個(gè)位數(shù)變,twenty-one twenty-first thirty-five thirty-fifth三、基數(shù)詞的運(yùn)用.表年代（分兩局部）1995:nineteen ninety-five 2003:two thousand and three.時(shí)間：（i）先時(shí)后分 5:20 five twenty.分 + past / to+ 時(shí) 5:20 twenty p

4、ast 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）整點(diǎn)可加 o clock 6:00 six o clockit作主語表時(shí)間，用at表在。時(shí)刻It s six o clock now. I get up at six o clock.（6）a.m.表上午、午前

5、，p.m.表下午、午后7:20a.m. 6:50p.m. 、車牌號(hào)碼:分讀，相同數(shù)用 double double two six one double eight seven.長、寬、高、深計(jì)量單位:基數(shù)詞 + meter(s) / kilometer / kilo(s) + 形(deep, long, heavy.)400米寬3000公里長32公里遠(yuǎn)2米深.貨幣單位：$7.35 seven dollars thirty-five cents 3.75 three pounds seventy-five pence 5.21 five yuan twenty-one fen (dollar,

6、cent, pound 有復(fù)數(shù)形式變化，yuan, fen, pence 無).表編號(hào) Lesson Nine = Unit Two =Page 5 Room 203 No.3 bus.7,數(shù)的計(jì)算：is two and seven? / is two plus seven? Itz s nine.溫度及比賽分?jǐn)?shù):The temperature will be 2-9 (two to nine). We won 2:1 (two to one).數(shù)字的具體表達(dá)與約略表達(dá)：(1)具體表達(dá) ten books two hundred students three million trees for

7、ty billion people 約略表達(dá)hundreds of people(數(shù)百人)millions of trees(數(shù)百萬棵樹)注意:(several, many, some) thousand(s of) people hundred of the books這些書中的一百本.其它表達(dá)：(1)在九十年代in the nineties 在我二十多歲時(shí)in my twenties in one7 s+基數(shù)詞復(fù) 數(shù)(3)半個(gè)小時(shí) half an hour(4)個(gè)半小時(shí) one and a half hours / one hour and a half(5)一兩個(gè)小時(shí) one or tw

8、o hours / one hour or two注意:1.由基數(shù)詞和名詞加連字符構(gòu)成的復(fù)合詞作前置定語時(shí)，名詞用單數(shù)。afive-year-old boy an eight-hundred-word text a ten-minute walk a nine-meter-deep hole2.基數(shù)詞的副詞形式once, twice, three times四、序數(shù)詞的運(yùn)用.一般要加 the 表示順序，the First Lesson the Third Floor.有限定詞時(shí)，不用the,This is Lily s second pen. Itz s our first lesson. M

9、ary is my first teacher.用 a / an + 序數(shù)詞，表another., one more.”含義。I need a third pen.(=).序數(shù)詞作表語，談?wù)摽荚?、比賽獲得的名次時(shí)，常不用the.Who was second in the high jump?.修飾動(dòng)詞，不用 the. He stands first in the team. = He is the head of the team.表世名己 in the twentieth century at the end of the twentieth century in the seventies

10、 of the 19th century.在十九世紀(jì)七十年代，寫作 in the 1870s.修飾最高級(jí):the + 序數(shù)詞+最高級(jí)+單 n. The Yellow River is the second longest river in China.體育比賽的階段 in the first half of the match 上半場 in the second half of the match下半場.表順序 He come here for the first time, the first three rows 前三排.習(xí)語 at first五、基數(shù)詞和序數(shù)詞的合用.年、月、日 1999

11、.9.10:Sep.10th, 1999 September the tenth nineteen ninety-nine.分?jǐn)?shù):基 / 序 2/3:two thirds 1/2: a half / one second 3/4: three quarters / three fourths.當(dāng)分?jǐn)?shù)與名詞連用時(shí)，分?jǐn)?shù)+ of +名詞+ v.（由名詞決定）Two thirds of the money paid for the book.Three quarters of the world, s books written in English.數(shù)詞專練一、選擇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 fasterWe are going to learn next week.A. Lesson Twelve B. Lesson twelfth C. twelfth lesson D. the lesson twelfthAbout of the wor