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1、考点一：基数词考点一：基数词一、基数词的基本形式一、基数词的基本形式1. 1-12独立成词，需逐个记忆。独立成词，需逐个记忆。2. 13-19的基数词以的基数词以-teen结尾，尤其要注意结尾，尤其要注意thirteen, fifteen, eighteen的正确拼写。的正确拼写。3. 表示表示“整十整十”的基数词的基数词(20-90)都以都以-ty结尾，其中要特别注意结尾，其中要特别注意twenty, thirty, forty, fifty, eighty, ninety的正确拼写。的正确拼写。4. hundred, thousand, million, billion等词前有具体数字时，
2、不等词前有具体数字时，不能加能加-s，且与，且与of 连用。连用。二、基数词的其他表达形式二、基数词的其他表达形式1. 21-99的写法是在十位和个位中间加连字符的写法是在十位和个位中间加连字符“-”。36 thirty-six 97 ninety-seven2. 101-999的构成是百位和十位之间的构成是百位和十位之间(若十位为零，则在百位和若十位为零，则在百位和个位之间个位之间)用用and连接。连接。3. 四位数或者四位数以上的基数词的拼写规律：从右往左每三四位数或者四位数以上的基数词的拼写规律：从右往左每三位加一个位加一个逗号逗号，第一个逗号读作，第一个逗号读作thousand (千千
3、)，第二个逗号，第二个逗号读作读作million (百万百万)，第三个逗号读作，第三个逗号读作billion (十亿十亿)。94,295 ninety-four thousand two hundred and ninety-five4. “基数词基数词-单数名词单数名词”相当于复合形容词，只能作定语，用于相当于复合形容词，只能作定语，用于表示时间、距离等。表示时间、距离等。a ten- minute walk 步行步行10分钟的路程分钟的路程5. “基数词基数词+ more”与与“another+ 基数词基数词”意义相同，表示意义相同，表示“再再；另外；另外”。two more days=
4、another two days 另外两天另外两天考点二：序数词考点二：序数词一、基数词变序数词的规则一、基数词变序数词的规则基数词基数词变化规则变化规则例词例词1, 2, 3不规则变化不规则变化one first two second three third4-19基数词词尾加基数词词尾加-th一般：一般：four fourth nineteennineteenth特殊：特殊：five fifth eighteighth nineninth twelvetwelfth20-90 整十数整十数ty变为变为tie再加再加-th twentytwentieth ninetyninetieth除整十
5、数外的除整十数外的两位数或多位两位数或多位数数变个位数变个位数 twenty-one twenty-first one hundred and fifty five one hundred and fifty-fifth【注意注意】序数词的缩写：序数词的缩写：first 1st second2nd third3rd fourth 4thninth 9th twenty-first 21st 二、序数词的用法二、序数词的用法1. 序数词前加定冠词序数词前加定冠词the， 表示第几；但序数词前有表示第几；但序数词前有其他修其他修饰词饰词时，时，the省略。省略。This is my first t
6、ime to come to China.这是我第一次来中国。这是我第一次来中国。Jimmys mother took him to visit the Great Wall on his ninth birthday. Jimmy的妈妈在他九岁生日时带他参观了长城。的妈妈在他九岁生日时带他参观了长城。2. 序数词前加不定冠词序数词前加不定冠词a/ an，表示，表示“又一；再一又一；再一”。Weve tried it three times. Must we try it a fourth time?我们已经试过三次了。还必须再试一次吗？我们已经试过三次了。还必须再试一次吗？考点三考点三：数词
7、的用法：数词的用法一、数词的常见一、数词的常见用法用法1. 日期：日期：“年年”用基数词；用基数词；“日日”用序数词。用序数词。2. 时刻：时刻：几点钟：基数词几点钟：基数词+oclock (可少略可少略)。几点过几点过/差几分：分钟数差几分：分钟数 30分钟，用介词分钟，用介词past; 分钟数分钟数 30分钟，用介词分钟，用介词to3. 分数：分数：构成：分子用基数词，分母用序数词；分子大于构成：分子用基数词，分母用序数词；分子大于1时，时，分母加分母加-s；one third, two thirds。4. 顺序顺序/编号编号：名词：名词(首字母大写首字母大写)+ 基数词基数词=the +
8、 序数词序数词+名名词；词；Page 5= the fifth page。5. 年代年代/年龄年龄：某人几十岁时：某人几十岁时：in ones +整十基数词的复数整十基数词的复数形式；形式；in his forties 在他四十多岁时。在他四十多岁时。几世纪几十年代：几世纪几十年代：the + 年份的复数年份的复数/ 所有格所有格形式；形式；in the 1980s 20世纪世纪80年代年代二、数词的其他用法二、数词的其他用法1. 概数词的用法概数词的用法(1) 表示确切的数字表示确切的数字：具体数字：具体数字+概数词概数词+名词复数名词复数five hundred/ thousand peo
9、ple 500/5000人人(2) 表示不确切的数字表示不确切的数字：概数词：概数词+ - s + of+ 名词复数名词复数thousands of birds 成千上万只鸟成千上万只鸟2. 带有分数带有分数/百分数的词语百分数的词语作句子主语时，谓语动词的单、作句子主语时，谓语动词的单、复数形式要由其后名词的数决定。复数形式要由其后名词的数决定。Two thirds of the students in our school have raised money for the disabled.我们学校三分之二的学生为残疾人筹了钱。我们学校三分之二的学生为残疾人筹了钱。About three
10、 quarters of the earths surface is covered by water.约四分之三的地球表面被水覆盖。约四分之三的地球表面被水覆盖。1. (2021辽宁鞍山中考辽宁鞍山中考)We should try to devote (献身于献身于) ourselves to our country like Yuan Longping.I think so. He still worked on the research into agriculture(农业农业) at the age of _ . A. eighties B. eightieth C. eighty
11、D. eighty-year-oldC2. (2021辽宁营口中考辽宁营口中考)He got_ birthday cakes on his _ birthday.A. second；fifteenB. two；fifteenC. second；fifteenthD. two；fifteenth3. (2021湖北黄冈中考湖北黄冈中考) Excuse me, wheres the library?Go along this road, and turn right at _ crossing. It is on your left. A. oneB. the oneC. firstD. the
12、firstDD4. (2021湖南郴州中考湖南郴州中考)Our Party was founded in 1921. Well celebrate her _ birthday on July 1st this year. A. one hundredB. one hundredthC. the one hundredth B5. (2021青海西宁中考青海西宁中考)I like Number “9” best, because I think it stands for “long lasting”.Me too. So I chose _ floor to live on.A. nine
13、B. ninth C. the ninth D. nineteen6. (2021黑龙江绥化中考黑龙江绥化中考)My aunt became a nurse in her _and she still loves her job now.A. twenties B. twentieth C. twentyCA7. (2021山东滨州山东滨州中考中考)Chin is a great country with a history of about five _ years.Yes. And _ of foreigners come to visit it every year.A. thousan
14、d; thousand B. thousands; thousandsC. thousand; thousands D. thousands; thousandC8. (2021广西玉林中考广西玉林中考) Susan, how many women teachers are there in your school?In our school, _of the teachers _ women teachers.A. third fourth; are B. third fourth; is C. three fourths; is D. three fourths; areD9. (2021
15、湖北恩施州湖北恩施州中考中考)My aunt has only one child, and she wants _ child.A. the second B. a second C. two10. (2021贵州铜仁中考贵州铜仁中考)There are_ floors in this building. He lives on the_ floor.A. thirty; nine B. thirtieth; nineC. thirtieth; ninth D. thirty; ninthBDB11. (2021四川达州中考四川达州中考)My mother will be _ years old next week. Im planning to buy a gift for her _birthday.A. fourty; fourtieth B. forty; fortieth C. fourty; fortiethD. forty; fourtieth