2024年人教版中考英语专项复习之数词课件

这是一份2024年人教版中考英语专项复习之数词课件，共26页。PPT课件主要包含了基数词， 序数词，不定代词，练一练等内容，欢迎下载使用。
基数词序数词数词的其他表达方式
1.表示数目多少的数词叫基数词。它的构成方式如下：
由表格我们可以得出下面的规律：① 1-12 为独立的单词，有其各自的形式；② 13-19 都以 teen 结尾，单词中的两个音节都读重音；③ 20-90 之间“整十”都以-ty 结尾，单词中的第一个音节重读；④ 20-99 之间的“几十几”，十位和个位之间加连字符“-”；⑤ 101-999 之间的非整百的基数词的读法为：百位数和十位数（或个位数）之间用 and 连接；⑥ 四位数或四位数以上的基数词的拼写规律为：用逗号从右向左每三位加一个逗号，第一个逗号前用 thusand，第二个逗号前用 millin，第三个逗号前用 billin；读数时从左向右一次读出来。如：3, 728, 221, 969 可读为 three billin, seven hundred and twenty-eight millin, tw hundred and twenty-ne thusand, nine hundred and sixty-nine
基数词的构成口诀：1 至 12 独立词，13 至 19-teen 加起，20 至 90 整十位，-ty 结尾是后缀；几十几，连字符“-”莫忘记；几百几，hundred 后面 and 立。即学即练：用英文读出下列数字104 __________27, 902 __________3, 357, 346 __________7, 504, 750, 110 __________
2. 基数词的用法 (1) 表示数量的多少、号码的大小等。如：There are tw playgrunds in ur schl. 我们学校有两个操场。—What size d yu need? 你要多大号码的？—Size five. 五号。(2) 表示年份、年龄或时刻。如：The little by was brn in 1995. 这个男孩出生于 1995 年。My grandma is eighty years ld. 我奶奶呢 80 岁了。I fell ff frm my bike at the age f 16. 我16的时候从自行车上摔下来了。—What time is it nw? 现在几点了？—It’s abut nine ’clck. 大约 9 点。
注意：表达“在几十年代”时，用“in the + 几十的基数词的复数形式”；表达“在某人几十岁时”，用“in ne’s +几十的基数词的复数形式”。如：In his twenties my uncle went t France. 我叔叔在他二十多岁时去了法国。In the 1900s, Mr. Wang wrked in a factry. 二十世纪九十年代，王先生在一家工厂上班。
(3) 表示顺序。基数词表示顺序时，由“单数名词+基数词”构成，此时名词和基数词的第一个字母通常大写。如：—What class are yu in this term? 这学期你在哪个班？—I’m in Class One Grade Three. 我在三年级一班。(4)“anther + 基数词 + 名词”或“基数词 + mre + 名词”表示在已有基础上再增加一定的数量。如：In anther tw weeks, it will be finished. 再过两个星期，这活就完成了。
1.There are _____ students in my art club, twenty-tw girls and eighteen bys.A. furteen B. frtieth C. frty2.Abut _____ f the students in Grade Nine this year were brn in the _____.A. three five; 1996 B. three fifths; 1990sC. third fifth; 1997 D. third fifths; 1990s3.Please turn t page ______ and take a lk at the picture n it.A. the eightieth B. eightiethC. eighties D. eighty4.—D yu have enugh students t clean the labratry?—N, I think we need _____ students.A. tw mre B. mre tw C. tw ther D. tw anther
3. hundred, thusand, millin, billin 的特殊用法(1) hundred, thusand 等数词，其前有具体数字修饰，表示具体的数目时，用单数。如：The by has cllected tw thusand stamps. 这个男孩已经收集了两千张邮票。(2) 当 hundred, thusand 等与“f + 复数名词”连用时，表示模糊概念，这时hundred, thusand 等要用复数形式。如：Every year, there are hundreds f peple visiting the place f interest. 每年有成百上千人参观这处名胜。
即学即练1.Mre than tw _____ trees are planted in ur neighbrhd every year.A. hundred B. hundreds C. hundreds f D. hundred f2.—The 15th Chinese Bridge-Chinese Prficiency Cmpetitin will be held this year!—That's great!_______ freign cllege students are interested in Chinese learning.A. Hundred f B. Thusands C. Hundred D. Thusands f
1. 序数词的构成方式序数词大都是由基数词变化而来的。其构成形式如下：
基数词变序数词口诀：基变序，有规律，加上th 就可以；1/2/3，特殊记；结尾字母tdd;8 少 t，9 去 e；ve 来把 f 替；若是遇到整十数y，结尾ty改 ie；若是遇到几十几，只变个位就可以。注意：序数词在实际书写运用时，常用缩写形式，缩写形式为“阿拉伯数字 + 序数词最后面的两个字母”。如：first ---1st; seventeenth --- 17th; twenty-secnd --- 22nd; thirty-third ---33rd
2. 序数词的用法(1) 表示顺序。序数词表示顺序时，其前需用定冠词 the，后面接单数名词。如：February is the secnd mnth f the year. 二月是一年中的第二个月。(2) 表示日期中的“日”。如：Mnday, February 2nd 2 月 2 号，星期一(3) 序数词前也可用不定冠词 a / an，表示“再……，又……”。如：I’ve tried twice, but I’ll try a third time. 我已试过两次了，但我将再试一次。注：序数词前有形容词性物主代词/名词所有格修饰时，序数词前不用the。如：This is ur first lessn this term. 这是我们这一学期的第一节课。the tenth birthday her tenth birthday Mike’s tenth birthday
即学即练1.December is the _____ mnth f the year.A. twelve B. twelveth C. twelfth2.—I hear yur friend is visiting Sanya again. Is it the secnd time fr him?—Yes, and he will cme fr _____ time next spring.A. a third B. a secnd C. the third3.Li Ming will be _____. His parents are ging t have a party fr his _____ birthday.A. sixteen; sixteenth B. sixteenth; sixteenthC. sixteen; sixteen D. sixteenth; sixteen4.He has failed _____ times, but he wn't give up a _____ chance.A. third, fur B. three, furth C. third, furth
三、数词的其他常用表达法
1. 分数、小数、百分数和倍数（1）用数词表达分数时，分子用基数词，分母用序数词；如果分子大于 1，分母用复数。如：Only ne-fifth f air cnsists f xygen. 氧气只占空气的五分之一。注意：“四分之一”常表示为 a quarter；“四分之三”表示为“three quarters”；“二分之一”表示为“a half”。如：I will take three quarters f the tea away. 我要拿走茶叶的四分之三。（2）用数词表达小数的形式为：基数词+pint+基数词ne pint tw1.2 tw pint tw three2.23twenty-five pint three fur25.34
（3）百分数 : 基数词+percenttw percent 2% thirty-five percent 35%（4）倍数：基数词+times倍数为2时，也可用duble、twice表示，倍数为3时，也可用triple表示。表示 A 是 B 的几倍时，常用下面的三种方法：(1) A + 动词 + 倍数 + 比较级 + than B(2) A + 动词 + 倍数 + as + 原级 + as B(3) A + 动词 + 倍数 + the + 相应的名词 + f B如：这根绳子是那根的 3 倍长。This rpe is twice lner than that ne.This rpe is three times as lng as that ne.This rpe is three times the length f that ne.
3. 编号的表达法电话号码、汽车号码等的编号。这些编号要用阿拉伯数字。朗读时，若是遇到 0，既能读作字母 O 音，也可读作 zer（零）；两个相同的数字在一起时，还可读作 duble。如：Tel: 4885207 读作 fur, duble eight, five, tw, zer, seven
4. 约数的表达法英语中除了用 hundreds f, thusands f 等表达“约数”外，还有以下几种表达法：(1) “大约”用 abut, nearly, arund 等。如：The dg weighs abut 80 punds. 这条狗约 80 磅重。(2) “多于”“超过”用 ver, mre than。如：Answer these questins in nt mre than / ver 45 wrds. 回答下列问题，不要超过 45 个单词。(3) “不超过”“少于”用 less than, belw。如：She is less than twenty years ld. 她不到 20 岁。
(4) “左右”用 r s 表达。如：In the past fifty years r s, scientists have been able t see farther and farther int the sky. 在过去 50 年左右的时间里，科学家已经能够观察到越来越远的太空。(5) “.…..或者……以上”用…r mre 表示。如：The hall can hld 1,000 peple r mre. 大厅可容纳 1000 人或者更多。(6) “.…..或者……以下”用…r less 表示。如：There are 2,000 students r less in ur schl. 我们学校有 2000 或将近 2000 名学生。
1.Lk! An ld man is lying n the rad. His leg is badly hurt.Let’s call B.119 is Jack’s birthday. He is _______ years ld nw.A. furteenth B. furteen C. the furteenth D. the furteen3.There are twelve bys and thirteen girls in Class Fur，which means ______ students in ttal. A. 33 B. 25 C. 13 D. 124.Tday is my cusin’s _____ birthday. I am ging t his birthday party tnight.A. nineteenth B. the nineteenth C. nineteen.
5.Amy will be an elder sister. Her parents are ging t have _____ child.A. tw B. secnd C. the secnd6.---Wuld yu like anther cup f cffee, Linda?--- Thank yu anyway. I’ve already had ne cup, and I’m drinking ___cup.A. ne B. the first C. the secnd D. the third7.My father gave me a bike n my ______ birthday.A. ten B. a tenth C. the tenth D. tenth 8.—Hw many gifts d yu expect t get n yur ___ birthday?—The mre, the _____.A. sixteenth; better B. sixteenth; best C. sixteen; better D. sixteen; best9.This Saturday is my _____ birthday. Welcme t my party!A. furteenth B. the furteenth C. furteen D. the furteen
10.—Wh wn the first prize f the ____Wrld Table Tennis Champinship? —Yu means the match hld in _____? Ma Lng did.A. fifty-fur ; German B. fifty-furth; Germany C. fifty-furth; German D. fifty-fur ; Germany11.The apartment has ___ flrs and Mr. Smith lives n the _____ flr with his family.A. twelve; twelve B. twelfth; twelfth C. twelve; twelfth D. twelfth; twelve12. _____ f the students in ur class _____ ging t the summer camp in Beijing next week.A. Tw fifths; are B. Secnd fifths; are C. Tw fifths; is13._____ students went t the university t listen t the _____ speech.A. Thusands f; 120-minutes B. Thusands f; 120-minutesC. Tw thusands; 120-minutes D. Tw thusand; 120-minute
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