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1、精选学习资料 - - - - - - - - - 学习必备 欢迎下载重点学问归纳及讲解（一）基数词基数词用来表示数目,或者说表示数量的词叫基数词；最基本的基数词如下表所示；1 one 11 eleven 20 twenty 100 a hundred 2 two 12 twelve 1000 a thousand 3 three 13 thirteen 30 thirty 1,000,000 a million 4 four 14 fourteen 40 forty 10,000, 000 ten million 5 five 15 fifteen 50 fifty 100,000,000 a
2、 hundred million 6 six 16 sixteen 60 sixty 1,000,000,000 a billion 7 seven 17 seventeen 70 seventy 8 eight 18 eighteen 80 eighty 9 nine 19 nineteen 90 ninety 10 ten 说明：11319 是由个位数加后缀-teen 构成；留意其中 13、15 的拼写是 thirteen 和 fifteen ；22090 由个位数加后缀-ty 构成,留意其中 2050 的拼写分别是 twenty, thirty, forty 和fifty;80 的拼写是
3、 eighty；3其它非整十的两位数2199 是由整十位数加连字符“-” ,再加个位数构成；如：81 eighty-one；4101999 的基数词先写百位数,后加 and 再写十位数和个位数；如： 691 six hundred and ninety-one；51000 以上的基数词先写千位数,后写百位数,再加and,最终写十位数和个位数；如： 5893 five thousand eight hundred and ninety-three ； 在基数词中只有表示“ 百” 、“ 千”的单位词,没有单独表示“ 万” 、“ 亿” 的单位词,而是用thousand（千）和 million （百万
4、）来表达,其换算关系为： 1 万=10 thousand;1 亿=100 million; 10 7多位数的读法：亿=a thousand million=a billion ；1）1000 以上的多位数,要使用计数间隔或逗号“ ,” ；即从个位起,每隔三位加一个间隔或逗号；第一个间隔或逗号前是 thousand（千）,其次个间隔或逗号前是 million （百万）,第三个间隔或逗号前是 a thousand million 或 a billion 十亿 ；2）每隔三位分段以后就都成了 101 999；读的时候十位数 （或个位数） 的前面一般要加 and；如：888,000,000 读作： e
5、ight hundred and eighty-eight million ；（二）、基数词的用法名师归纳总结 1基数词的复数形式表示大量的的数目；不能在词尾加 -s；第 1 页,共 8 页在这种情形下,表示单位的基数词hundred, thousand, million, billion- - - - - - -精选学习资料 - - - - - - - - - 学习必备 欢迎下载例如：two hundred students 二百个同学five thousand years 五千年2基数词的复数形式表示大量的的数目,在这种情形下,表示单位的基数词词尾加-s,要与 of 短语连用；3基数词在句
6、中的作用基数词的作用相当于名词和形容词,它在句子中可充当主语,宾语,表语和定语；例如：Three and five is eight. 3+5=8 主语 表语How many oranges do you want. 你要多少桔子？I want eight. 我要八个；宾语There are eight boats in the lake. 湖里有八条小船；定语（三）序数词表示次序的词, 叫序数词；序数词用来表示数词次序；除特别情形外,序数词一般都由相应的基数词加后缀-th 构成；请见下表：第一到第十 第十一到第十九 其次十以上first eleventh twentieth second t
7、welfth thirtieth third thirteenth fortieth fourth fourteenth fiftieth fifth fifteenth sixtieth sixth sixteenth seventieth seventh seventeenth eightieth eighth eighteenth ninetieth ninth nineteenth hundredth tenth thousandth 说明：1英语中表示第一、其次、第三的序数词属特别形式,要留意它们的拼写；2表示“ 几十” 的序数词通常是将基数词词尾y 变成 i 再加上后缀 -eth；
8、3其余的二位数序数词是以相应的整十基数词加个位序数词；如：fifty-first （第五十一）；4少数序数词拼法不规章,如：十二）等；留意：fifth （第五）, eighth（第八）, ninth（第九）, twelfth （第1序数词可缩写为阿拉伯数字加序数词最终两个字母；例如：名师归纳总结 - - - - - - -第 2 页,共 8 页精选学习资料 - - - - - - - - - 学习必备 欢迎下载第一： the first=1 st 其次： the second=2 nd 第三： the third=3 rd 第五： the fifth=5th 第九十七： the ninety-
9、seventh=97 th 第一百零一： the one hundred andfirst=101st 2编了号的事物要用基数词表示次序,但是基数词要后置；例如：第一课： Lesson One 第三十二页： Page 32 第 305 房间： Room 305 第 12 路公共汽车： Bas No.12 五、序数词的用法 序数词和基数词一样,也能起名词或形容词作用,在句子中作主语、表语、宾语和定语；例如：The first is bigger than the second. 第一个比其次个大；主语Give me the first. 把第一个给我；宾语Shes often the first
10、 to go to school. 她常常第一个去上学；表语Were going to learn the eighth lesson. 我们将要学习第八课；定语 六、年、月、日和时间的表达法1年份用基数词表达,分两位一读,年份前用介词 in；例如：2022 nineteen ninety-nine 2022 two thousand 2022 two thousand and one 2月份的第一个字母要大写,有些月份名称有缩写形式；例如：一月 JanuaryJan., 二月 FebruaryFeb., 三月 MarchMar., 四月（Apr. ）,五月 May, 六月 June, 七月
11、July, 八月 AugustAug. ,九月 SeptemberSep., 十月 OctoberOct., 十一月NovemberNov., 十二月 DecemberDec.；3日期的表达要用序数词,读时前面要加定冠词the,介词要使用on；例如：在 6 月 1 日： on June 1 st 读作： on June the first. 年、月、日同时表达时,一般应先写月、日、后写年；例如：名师归纳总结 - - - - - - -第 3 页,共 8 页精选学习资料 - - - - - - - - - 学习必备 欢迎下载在 2022 年 5 月 4 日： on May 4 th, 2022
12、；4岁月用基数词的复数表示；例如：20 世纪 90 岁月： nineteen nineties 21 世纪 20 岁月： twenty twenties 5时间表达法：时间可用顺读法或倒读法两种方式表达；例如：顺读法 倒读法5：00 five o clock 6：18 six eighteen eighteen past six 12： 15 twelve fifteen fifteen a quarter past twelve 4：30 four thirty half past four 5：50 five fifty ten to six 6：45 six forty-five a q
13、uarter to seven 留意：1）表示整点时间,直接用基数词表达,后边可接 oclock 也可不加 ；表达“ 几点几分”时,绝不能用 oclock ；2）表达“15 分” 或“45 分” 时,常用 quarter（刻）；3）在倒读法中,假如钟点不过半,须用“ 分钟数+past+钟点数” 的形式；假如钟点过半,就用“ 差多少分钟数 +to+全钟点（下个钟点数）” 的形式；例如：8:20 twenty past eight 8:40 twenty to nine 6分数的表达法 1）分子用基数词,分母用序数词；分子大于 1 时,分母用复数；2）小数的读法：小数点前面的数根据基数词的读法,小
14、数点后面的数根据数本身读,小数 点读 point；例如：0.38 zero point three eight 96.89 ninety-six point eight nine 3百分数,在数词后加 percent；例如：15%读作： fifteen percent 60%读作： sixty percent 7表示语数1） 几倍大小（长短,数量）= 几倍（或分数）+the sizelength, amount ；例如：The earth is forty-nine times the size of the moon. 名师归纳总结 地球是月球的49 倍；第 4 页,共 8 页- - - -
15、 - - -精选学习资料 - - - - - - - - - 2） 比 几倍 = 倍数（或分数）学习必备欢迎下载+than+被比部分；+形容词（副词）比较级例如：His house is three times bigger than mine. 他的房子比我的房子大三倍；3） 是 倍 = 倍数（或分数）例如：+as +形容词 +as +被比部分；This factory is four times as big as that one. 这个工厂是那个工厂的四倍；8表示约数1）“ 多于” 用 more than 或 over；例如：The street is overmore than 50
16、0 metres long. 这条街有 500 多米长；2）“ 小于” 用 less than；例如：Three are less than 30 people in the classroom. 教室里不到三十人；3）“ 或 以上” 用 or more ；例如：The building can hold 5000 people or more. 那座建筑物可容纳 5000 人或 5000 人以上；4）“ 或 以下” 用 or less；例如：We can finish the work in two weeks or less. 我们可以在两周内或不到两周完成这件工作；5）“ 大约” 用 a
17、bout, around, nearly 等；例如：The box weighs about 50 pounds. 这箱子重约 50 镑；6）“ 左右” 用 or so. 例如：In the past ten years or so, they have changed a lot. 在过去的十年里,他们转变了很多；三、课堂练习 I. 写出以下基数词相应的序数词：1. one _ 2. two _ 3. three _ 4. five _ 5. eight _ 6. nine _ 7. twelve _ 8. twenty _ 9. thirty-one _ 10. forty-four _
18、11. fifty-seven _ II. 把以下短语译成英语：名师归纳总结 - - - - - - -第 5 页,共 8 页精选学习资料 - - - - - - - - - 学习必备 欢迎下载1. 第 12 课 _ 2. 304 号房间_ 3. 半小时_ 4. 每日三次_ 5. 第 25 页 _ 6. 20 世纪 90 岁月 _ 7. 4 路公共汽车 _ 8. 第 15 中学 _ 9. 21 世纪 _ 10. 两吨半_ 11. 差一刻三点 _ 12. 其次册 _ 13. 在他五十几岁时 _ 14. 二年级八班 _ 15. 10:45 _ 16. 第十五单元_ 17. 第三册第十三课 _ 18
19、. 三分之一 _ 19. 三百英镑 _ 20. 1994 年 3 月 22 日 _ 四、课后巩固 III. 挑选填空：1. 333 reads _. A. three hundred and thirty three B. three hundreds and thirty-three C. three hundred and thirty-three D. three hundred thirty-three 2. The _ month of the year is February. A. one B. first C. two D. second 3. The beautiful sk
20、irts are on show in the shop, Jane likes _. A. the ninth B. the nineth C. nine D. ninth 4. It took me _ to finish my homework. A. a half and two hour B. two hour and a half C. two and a half hour D. two and a half hours 5. December is the _ month of the year. A. twelve B. twelveth C. twelvieth D. tw
21、elfth 6. Tom bought _ for himself yesterday. A. two pairs of shoes B. two pair of shoe C. two pair of shoes D. two pairs shoes 7. There are _ seconds in a minute. A. fourty B. forty C. sixteen D. sixty 8. Lin Tao gets up at _ in the morning. A. half past six B. six past half C. past half six D. half
22、 six past 9. December _ is Christmas. A. twenty-five B. the twenty-fifth C. the twentieth-five D. twentieth-fifth 10. There are _ stars in the universe. A. millions B. million of C. millions of D. million 11. Monday is the _ day of the week. A. two B. second C. three D. third 12. Mr. Black left here
23、 _ ago. A. half a hour B. half an hour C. an half hour D. a half hours 名师归纳总结 - - - - - - -第 6 页,共 8 页精选学习资料 - - - - - - - - - 学习必备 欢迎下载13. There are _ students in their school. A. nine hundred B. nine hundreds C. nine hundred of D. nine hundreds of 14. There are _ words in the text of the _ Lesson.
24、 A. hundred of, Fifth B. a hundred of, Fiveth C. hundreds of, Fifth D. hundreds of, Fiveth 15. We had learned about _ English words by the end of last term. A. nine hundreds and forty-five C. nine hundred and forty-five IV. 中考题集：B. nine hundreds of and forty-five D. nine hundred and fourty-five 1. A
25、bout _ people are in the Peoples Park at weekends. A. two hundreds B. two hundreds of C. two hundred D. hundred of 2. The water behind the Three Gorges Dam 三峡大坝 should be _higher than downstream 下游 . A. sixty-five meter B. sixty-fifth meter C. sixty-five meters D. sixty-fifth meters 3. In our school
26、 several _ students are able to search the Internet for useful information now. A. hundred of B. hundreds for C. hundred D. hundreds 4. I was 8 years old when my father was 31. this year my father is twice my age. How old am I. A. 21 B. 22 C. 23 D. 24 5. When was the PRC founded. It was founded on _
27、. A. July 1, 1921 B. October 1, 1949 C. August 1, 1927 D. May 1, 1922 6. Look at the menu: SNACKS Hamburger $ 2.60 Orange juice $1.20 Hot dog $2.15 Coffee $1.00 Ice cream $2.00 Coke regular $0.75 Popcorn $1.00 large $1.00 Jeff wants to buy a hamburger, a large coke and ice cream. How much will he pa
28、y. A. Five dollars and sixty cents. B. Five dollars and thirty-five cents. C. Three dollars and sixty cents. D. Two dollars. 7. - How many workers are there in your factory. - There are two _. A. hundreds B. hundred C. hundred of D. hundreds of 8. The film star is going to spend _ dollars on a new d
29、ress for the coming party. A. three thousands B. thousands of C. thousand of D. three thousands of 9. There are _ doctors and nurses working hard in that hospital. A. thousand B. two thousand C. two thousands D. two thousands of 10. - How many teachers are there in your school. - _, but I m not sure
30、. A. Hundreds B. Hundred C. Hundreds of D. One hundred 11. I think _ lesson is the most difficult in this book. 名师归纳总结 - - - - - - -第 7 页,共 8 页精选学习资料 - - - - - - - - - 学习必备 欢迎下载A. five B. fifth C. the fifth D. fifteen 1. _ travelers come to visit our city every year. A. Hundred of B. Hundreds of C.
31、Five hundreds D. Hundred 2. The Games of _ Olympiad in 2022 will be held in the city of Beijing. A. 29 B. the 29 C. 29th D. the 29th 3. Fan Zhiyi s transfer to Dundee Football Club at the end of last year aroused _ Chinese s interest. peopleA. thousand of B. thousand C. thousands of D. thousands 4.
32、About _ films were shown during the 5th Shanghai International Film Festival. A. two hundred of B. two hundreds of C. two hundred D. two hundreds 5. - Do you have enough men to carry these chairs. - No. I think we need _ men. A. another B. two others C. more two D. two more 6. - Can you write the nu
33、mber eight five thousand, six hundred and twenty-six. - Yes, it is _. A. 85662 B. 85626 C. 58662 D. 58626 7. Therere _ students in our grade. A. hundreds of B. three hundreds of C. three hundreds D. three hundreds8. _ of the workers in this factory is about two hundred, _ of them are women workers. A. The number, first third B. The number, one third C. A number, half D. A number, three quarters 9. _ Germans come to visit China every year. A. Thousands of B. Thousands C. Thousand of D. Two thousands 名师归纳总结 - - - - - - -第 8 页,共 8 页