内容正文:
职教高考专题复习(六)——数 词
知识链接
表示数目多少和顺序先后的词叫做数词。
(一)数词的分类
数词分基数词和序数词两大类,前者表示数目多少,后者表示顺序先后。
1.基数词的构成
0~12 是独立基数词:
zero, one, two, three, four, five, six, sev-en,eight, nine, ten, eleven, twelve
13~19是以 teen结尾:
thirteen, fourteen, fifteen, sixteen, seven-teen, eighteen, nineteen
20~90的整十数词是以 ty结尾:
twenty, thirty, forty, fifty, sixty,seventy, eighty, ninety
十位和个位之间要用连字符, 如 twenty-two
三位数的数词由 hundred and 十位-个位如two hundred and twenty-two
千位及以上的数词由 thousand, million和billion 表示
2.大多数序数词由基数词加后缀-th 构成,如:fourth, sixth, one hundredth 等。以 y结尾的基数词变为序数词时,先把y变为i,再加-eth。如:twenty→twentieth,forty→forti-eth等。 两位数及以上的序数词,只变个位数即可。
下面几个基数词变序数词形式不规则:
one→first,two→second,three→third,five→fifth, eig ht→eighth, nine→ ninth, twelve→twelfth.
巧记顺口溜:
基数词变序数词的口诀:
基变序,有规律:一二三,特殊记,八加h,九去 e;ve要用f 替,以 y结尾变 ie,后加 th莫忘记;假如碰到几十几,只变个位就可以。
(二)数词的用法
顺读
时间表示法 to
逆读 past
1.编号表示法
名词前用序数词编号,并加定冠词;名词后用基数词编号,此时要注意名词和基数词需要大写。如:
the third part = Part Three 第三部分, the seventh lesson = Lesson Seven 第七课, Bus No. 25 =the No.25 Bus 第 25 路公交车等。
2.表示年代用“in+the+整 10的基数词的复数形式”。另外, 数词前还可用形容词early, late,middle 等修饰。 如:in the 1990’s或 in the earlynineteen nineties。
3.表示某人大约的年龄,用“in+one’s+整10 的基数词的复数形式”。如:in one's for-ties。
4.基数词 hundred, thousand, million, bil-lion表示确切数目,与具体数词连用时,用单数形式,如:two hundred students;如果表示不确切数目, 则要在词尾加-s, 且后接 of短语, 如:hundreds ofstudents, thousands of people 等。
5.以“基数词+名词”合成的定语,其中名词用单数。如:a five-year-old boy,a four-starhotel 等。
6.序数词前要加定冠词 the 或 one's。如:
I was the third to speak.
我是第三个发言的。
7.年、月、 日的书写方法有:
February 12th,2019、 12 February,2019和12th(of) February,2019,
读作 February the twelfth, two thousand and nineteen
或 the twelfth of February, two thousand and nineteen
【注意】 月份、星期的单词
January 一月, February 二月, March 三月,April 四月, May 五月, June 六月, July 七月,August 八月, September 九月, October 十月,November十一月, December 十二月。
Monday 星 期 一, Tuesday 星 期二, Wednesday星期三, Thursday 星期四, Friday星期五, Saturday 星期六, Sunday星期日。
8.分数的表示方式:分子用基数词,分母用序数词,分子大于1时,分母用复数形式。如:1/3—a (one) third, two fifths。注意二分之一、四分之一、四分之三有特殊表达法,分别是 one(a) half, one(a) quarter, three quarters。
9.倍数的表示方式有以下几种:
(1)倍数(或分数)+as+adj.+as...如:
I have three times as many as you.
我有你3倍那么多。
(2)倍数(分数)+形容词(副词)比较级+than…如:
This room is twice bigger than that one.这个房间比那个(房间)大两倍。
(3)倍数(分数)+the+名词(the size, length,height等)+of…如:
The earth is 49 times the size of the moon.地球是月球的49 倍。
【专项训练】
1.(2022·春考真题) When will John's birth-day party be held?
Please join us for a Birthday Party
Honoring
John Smith
--- June ---
Friday 24 10:00 a. m.
Lakeside Grand Hotel
567 Downtown Street
RSVP by June 23 to Mary
A. On June 23. B. On July 23.
C. On June 24. D. On July 24.
2.(2021·春考真题) of the land in our hometown covered with trees and grasses.
A. Three fifths;is
B. Three fifths;are
C. Three fifth;is
D. Three fifth;are
3.—What's the time, please?
—It's .
A. thirty nine
B. forty-eight past six
C. nine past four
D. thirty to nine
4. There are months in a year, andDecember is the month of the year.
A. twelve;twelfth
B. twelve;twelve
C. twelfth;twelfth
D. twelfth;twelfth
5. the students often surf on the In-ternet and get information.
A.65 percents of B.65 percent
C.65 percent of D.65 percents
6. visitors came to visit ZhanqiaoPeir during the vacation.
A. Thousand B. Thousand of
C. Thousands D. Thousands of
7. According to a survey, three fifths of women do housework at home, but only of men would do it.
A. four fifth B. four fifths
C. two fifth D. two fifths
8. After drive, we arrived at the sea-side finally.
A. a two-hour's B. a two hour
C. two hour's D. two hours'
9. The People's Republic of China was foun-de d ,
A. on October the first,1949
B. in October the first,1949
C. on October one,1949
D. on October first one,1949
10.—How old is your daughter?
— . We had a special party for her birthday yesterday.
A. Nine;nine B. Nine;ninth
C. Ninth;ninth D. Ninth;nine
11. He served in the army in , when he was in_______ .
A.1980's;twenties B.1980th;twenties
C. the 1980's;twenties
D. the 1980s; his twenties
12.—How do you keep fit?
—I live on floor. I walk upstairs instead of taking the lift every day.
A. twelve B. the twelve
C. the twelfth D. twelfth
13. Where are the students? Are they in ?
A. the Room 406
B. Room 406
C. the 406 Room
D.406 Room
14. of the land in the country covered with trees and grass. Ithink it is so beautiful.
A. Two fifth;is B. Two fifth;are
C. Two fifths;is D. Two fifths;are
15.—What are you going to do this Saturday?
—I am going to return to my hometown to celebrate my grandfather's birth-day.
A. ninty-ninth B. ninety-ninth
C. ninety-nineth D. the ninety-ninth
16.—Where were you born, Michael?
—I was born in a small village with only three people.
A. hundred B. hundreds
C. hundreds of D. hundred of
17. Our school is as as yours.
A. three time;big
B. three times;big
C. third time;bigger
D. three times;bigger
【定时练】
1
学科网(北京)股份有限公司
一、单项选择
1. students are waiting for the teacher on floor.
A. Ten;tenth B. Tenth;ten
C. Ten;the tenth D. The tenth;ten
2. There are of students in the school but only are boys.
A. hundred;two hundreds
B. hundreds;two hundreds
C. hundreds;two hundred
D. hundred;two hundred
3. The Chinese have been making paper for over years.
A. two thousand
B. two thousands of
C. two thousand of
D. two thousands
4. He is a student of .
A. Class First B. the Class One
C. Class One D. First Class
5. After the new technique was introduced, the factory produced products in 2018 as the year before.
A. as twice many B. as many twice
C. twice as many D. twice many as
6.—Two months quite a long time.
—Yes. I'm afraid that he will miss a lot of his lessons.
A. is B. are
C. was D. were
7. Mrs Green is already in , but she still studies law at a college.
A. her fifty's B. his fifties
C. the fifty D. her fifties
8. of the earth covered with oceans.
A. Two-third;is B. Two-thirds;is
C. Two-third;are D. Two-thirds;are
9.—What's the date today?
—It's .
A March the eighteenth B. March eighteenth
C. March eighteen D. the March eighteenth
10.—I have failed twice.
—Why not try ?
A. third time B. a third time
C. three times D. the third time
11. The time is 9:40, it's .
A. twenty to ten B. forty to time
C. nine to forty D. forty past nine
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