数词ppt

数词的特殊用法
1. 分数 分子用基数词，分母用序数词，分子大于一时 ，分母 用复数 形 式。 three fifths 1/3 one third 2/3 two thirds 3/5 读作 —————— a half 二分之一 _____ three quarters _______two thirds metre意__________ 四分之三 三分之二米 2. 百分数 倍数 sixty-seven percent 5% five percent 67% 读作———————— times 一次 once 两次 twice 三次 three times 四次 读作 four ———— six times 六倍 读作—————— 3. 表示年 代 in the +数词的复数 ，意为 在· · · · · · 年代， 如 in the 1980s 在二十世纪八十年代 in the 1830s 在十九世纪三十年代 写作 ———————— 在二十世纪二十年代早期 the six century译 ________in the early 1920's_________________ 六世纪 4. 表示岁数 13岁至19岁用teens 表在某人几十岁时 例如：用in one's thirties 表示在 in his fifties 某人三十几岁时 ，指从30岁到39岁。 在他五十多岁时写作————————
one billion
twenty-five twenty- fifth 25th 30 thirty thirtieth 30th 100 one hundred one hundredth 100th 101 hundred and one one hundred and first 101th 1,000 一千___________________ 10,000 一万___________________ 1,000,000 一百万________________ 1,000,000,000 十亿 _________________
2. 数词表示年 月 日
2011年5 月1号 写作 1 (st) May ,2011 或 May 1(st ) ,2011 读作 the first of May two thousand and eleven 或 May the first two thousand and eleven Octorber the twenty-third nineteen ninety-five 1995 年10 月23日 读作——————————————————
B 7. Sunday is the ______day of a week.
A. one B. first C. seven D. seventh A 8. In our school more than _____boys ______like English. A. two fifths ; don't B. two fives don't C. two fifths doesn't D. scond five doesn't D 9. The car cost me _____dollars. A. eight thousands B. eight thousand of C. eight thousands of D. thousands of C 10. The war took place _________. A. 1720s B. 1720's C. in the 1720s D. the 1720 11. I got a beatutiful bike on ______birthday. I like it very much. D A. fifteenth B. fifteen C. my fifteen D. my fifteenth C 12. Two ______police were sent to the spot to keep order after the accident. A. dozen of B. dozens of C. dozen D. dozens
考点 1. 千以内数词的表达方法。 2. 基数词变为序数词的方法。
3 年 月 日 编号 时刻的表达方法。 4. 分数小数的表达方法。
选择题 1. ------- When was he born? -------- He was born _________. D A. in 1988 June 6 B. on June 6,in 1988 C. in June 6 , 1988 D. on June 6 ,1988 2. The library in the school isn't large .There are only _____books A in it. A. six thousand, five hundred and forty-one B. six thousand and five hundred and forty-one C. six thousands five hundred forty and one D. six thousand , five hundreds and forth one 3. Athough I failed four times , my father encouraged me to try a _____time. D A . two B. four C. third D. fifth
3. 用数词表示事物的编号 Lesson One = the first lesson Page 5 = the fifth page the twenty-first room Room 21 读作 —————————— 当堂检测 1. ---Peter ,how old is your father this year? ----_______. And we just had a party for his ______birthday last C week. A. Fortieth , forty B . Forty ,forty C. Forty , fortieth C . Fortieth, forthieth D 2. I study in PingLi Chengguan Middle School ,there are two ______ students in our school. A. thousands B. thousands of C. thousand of D. thousand B 3. When spring comes, _____trees are planted in our city. A . a million of B . millions of C. two millions D. million of
5. 不定冠词 + 序数词 表示 “又一次”。 a. Do you want to try a third time? 你想做第三次尝试吗？ b. The little monkey had had three bananas , and he wanted to eat a fourth one. May I have a scond try 我可以再试一次吗？ —————————————— ？ 6. 数词用连字符 “ — ” 连接 作复合定语 a million -pound note 一张百万英镑的支票 a two-thousand-word composition_______________ 一篇两千字的作文 a twenty-metre-wide square ____________________ 一个二十米宽的广场 He has a three-year -old sister. 他有一个三岁大的妹妹。__________________________ 7. 小数 0.6 zero 或 nought point six one point five ___________ 1. 5 8. 用在习语中 乱七八糟 in twos and threes 三三两两 at sevens and eights _______
tenth eleventh
一 基数词的构成 二 序数词的构成 18 eighteen eighteenth 18th 19 nineteen nineteenth 19th 20 twenty twentieth 20th 21 twenty-one twenty -first 21th 22 twenty-two twenty-scond 22th one thousand 23 twenty-three twenty-third 23th ten thousand 24 twenty-four twenty-fourth 24th one million
10 ten 11 eleven 12 twelve 13 thirteen 14 fou 17 seventeen
10th 11th 12th thirteenth 13th fourteenth 14th fifteenth 15th sixteenth 16th seventeenth 17th
25
练一练
一 读出下列数字 79 103 999 1,302 6,896,203 第九 第四十 第五十二 第八十六 第三百零三 _____________ three hundred and third 二 写出下列数字. 2659 two thousand six hundred and fifty-nine _________ eighteen million two hundred and thirty thousand and sixtyeight ___________________ 18,230,068
三 1. 数字表示时刻
数词的基本用法
three o'clock a. 整点 7:00 读作 seven o'clock 或 seven. 3:00读作———— b. 用 past 表示 “几点过几分 ” 8:09 读作 eight o nine 或 nine past twenty-six past eleven eight 11:26 读作——————————— ten to one c. 用 to 表示几点差几分 4:50 读作 ten to five 12：50 读作———— --d. 用 half 表示半小时 5:30读作 five thirty 或 half past five four thirty 或 half past four 4:30 读作————————— e. 正好十五分钟 也可用 quarter 例如 1:15 读作 a quarter past one a quarter to ten 9:45 读作———————