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1、数词一 数词的分类（数词分基数词和序数词）基数词是表示自然数列的词, 例如; one, two, three, four.序数词是表示先后顺序的词, 例如: first, second, third, fourth二 基数词和序数词的表示法1基数词单词的拼写：112为单词，1319都以后缀-teen结尾，20至90这样的整十数都以后缀-ty结尾，其他基数词中间加连字符号“-”再按照上述的变化进行。例：21twenty-one 56- fifty-six 85eighty-five三位数的构成为：几+百+and+末两位（或末一位）数例：132one hundred and thirty-two2
2、05two hundred and five千以上的数字的读法：从后面往前，每三位数作为一个单位，分别为thousand, million.32, 548, 652, 读作：thirty two million, five hundred and forty eight thousand, six hundred and fifty two2. 序数词=基数词+th (1、2、3为 first, second, third)。但以下几种情况要注意：1) fifth (第五)，eighth (第八)，ninth (第九)，twelfth （第十二）2) 以ty结尾的基数词变词尾为tieth例：t
3、wentytwentieth, ninetyninetieth3)复合序数词只需要将相应基数词中最后一位变成序数词，其余不变。例：第二十一twenty-first第二百四十五two hundred and forty-fifth三 基数词序数词的用法1. hundred, thousand, million 与数字连用，表示一定量的具体数字，不用复数，但表示不定概念可用复数例：three hundred people, millions of people2. 基数词表示时刻。例：7点 seven oclock, 7:20 seven twenty3. 给某些事物编号例：Lesson One=
4、the first lessonBus No. 2 7月1日=July I (July Ist)1996年6月3日=June 3, 1996=June the third, nineteen ninety-six4. 有关分数表示法。分子是基数词，分母是序数词。当分子大于1时，分母就用复数。例：Ive read one-fifth of the books. Ive finished three-fifths of the words.5. 有关倍数表示法两倍用twice, 三倍以上用数词+times, 要注意倍数在句子的位置。例：The door is three times the siz
5、e of this.6. 十位数字（个位为零）的基数词以复数形式出现时，表示年代、年龄例：She is a good-looking woman in her forties. (forties 指4049岁之间)四 数词练习：1. The English for 10,440 is_.A. ten thousand, four hundreds and forty B. ten thousand, four hundred and fortyC. ten thousands, four hundred and forty D. ten thousand and four hundred, f
6、orty本题在于掌握千以上数字的读法，在千、百前面有数字，不加复数；百位、十位中间加and ，每三位为一组，再加相应的单位即可，故选B2. Of the workers in the factory is about two hundred, _of them are women workers.A. The number, first-third B. The number, one-thirdC. A number, half D. A number, three quarters分数表达法前文阐述已经很多，应表示为one-third. 要区分the number of 与a number
7、 of , the number of 指“的数量”，谓语动词用单数；a number of 意为“许多”，谓语动词为复数。故选B3. - Can you write the number eighty-five thousand, six hundred and twenty-six?- Yes, it is_.A. 85662 B. 85626 C. 85006 D. 85000千以上的数字，从后往前三个数为一个单位，即从85之后顺次写出三个数即可，即626，连在一起即为85626。故选B.4. About _ of the books in our school library are
8、written in Chinese.A. fouth-fifths B. four fifth C. four fifths D. fourths-fifth本题考查分数的表达法，分子用基数词，分母用序数词，当分子大于1，分母用复数，因此它的表达法为four-fifths,故选C。5. The road is over _ meters long.A. six hundred and fifty-two B. six hundreds and fifty twoC. six hundred, fifty two D. six hundred, fifty and two百、千、百万等词与数字
9、连用不用复数，因此不加s。其次表示百位数时要在百位和十位之间（无十位，则在百位和个位之间）加and ，再次在个位与十位之间要有连字符“-”，故本题选A6. January _ is New Years Day.A. one B. two C. the first D. the second某月的几号要用序数词表示，读时序数词前要加the 。故选C7. Take the _ turning on your night.A. nine B. ninth C. nineteen D. nineth根据题意判断本题考第几个转弯处需用序数词，拼写正确的只有B专项练习1. There are _ days
10、 in a week.A. the seven B. seventh C. the seventh D. seven2. I think that the _ century (世纪) will bring us more hopes.A. twenty-one B. twentieth-first C. twenty-first D. twentieth-one3. - How many students are there in your school?- _ the students in our school _ over two thousand.A. The number of;
11、is B. The number of ; areC. A number of ; is D. A number of; are4. The new student is in_.A. Class 2 B. Class Second C. 2 Class D. class 25. -How many teachers are there in your school?- _, but Im not sure.A. Hundreds B. Hundred C. Hundreds of D. One hundred6. _of the teachers in our school is about
12、 one hundred, and _of them are women teachers.A. The number, two-thirds B. The number, two-thirdC. A number, half D. A number, three-quarters7. - Dad, when will you be free? You agreed to go to the seaside with me four days ago.- I am sorry, Jean. But I think I will have a _ holiday soon.A. four-day
13、s B. four-day C. four days D. four day8. Fan Zhiyis transfer to Dundee Football Club at the end of last year aroused (激起) _Chinese peoples interest.A. thousand of B. thousand C. thousands of D. thousands9. This story happened on_. A. 1989, Oct 21st B. Oct. 21st, 1989 C. 21 October, 1989 D. 21st of O
14、ctober, 198910. Seven five can be written_.A. five sevens B. five to seven C. seven fives D. five past seven11There are _ days in a year Athree hundred and sixty five Bthree hundred and sixty-five Cthree hundreds and sixty five Dthree hundreds and sixtyfive12Danny lives in _ Aroom 404 BRoom 404 C404
15、 room D404 Room13Jim is in _ Aclass one，grade six Bgrade one，class six CClass One，Grade Six DGrade One, Class Six14The bike cost me _ yuan Afive hundred forty Bfive hundreds fourty Cfive hundred and forty Dfive hundred fourty15My telephone number is _ Aeighty eight two forty four zero nine Beight ei
16、ght two double four O nine Ceighty eight two forty-four zero nine Deight eight two four four zero nine16Is there any food for us _? Aten Btenth Cthe tenth Dthe ten17Mary is _ girl A. an 8 year old B8一yearsold Cthe 8 years old Dan 8一yearold18 What day is today? _ AJune BTuesday CIt is hot DIts fine19Whats the date today? _ AIts Saturday BIts July CIts fine DIts July 1520What time do you get up every day? AIts seven oclock BSeven oclock time CAt seven DOn seven