英语数词专项训练

英语数词专项练习

英语数词是表示数目多少和顺序的词，分为基数词和序数词，在句子中相当于名词和形容词。

一、基数词------表示数目或数量多少的词

1.用法----可作主语、宾语、定语和表语

2.hundred, thousand, million, billion表具体数目用单数；表不具体数目时用“--s of + 名词复数”

3. 数词+名词单数（+形容词）作定语 a 21-year-old girl; an 8-day holiday

4.与数词有关的介词短语“in+定冠词the+数词的复数”表年代

5.事物的编号：给事物编号时，序号在前用序数词，序号在后用基数词。

二、序数词-----表示数目顺序的词

1. 构成：

（1）. 许多序数词是由相应的基数词后加词尾-th构成的，如four / fourth，six / sixth，ten / tenth，sixteen / sixteenth，但是nine变为序数词是ninth，而不是nineth。

（2）. twentieth, thirtieth, fortieth 等表示整十的序数词，由相应的基数词将词尾y改为ie，再加-th 构成。

（3）. first, second, third 通常可缩写为1st, 2nd, 3rd。凡是以th结尾的序数词可缩写为“基数词+th”：4th, 5th, 9th, 11th, 60th, 128th等。

（4）. 非整十的多位数，将个位数变成序数词即可：twenty-first(第21)，thirty-sixth(第36)，ninety-ninth(第99)，three hundred and sixty-fifth(第365)等。

（5）. hundred, thousand, million 等序数词形式为hundredth, thousandth, millionth 等。

（6）. 序数词前通常要用定冠词，但表示考试或比赛等的名次时，通常可省略其前的定冠词。如：My room is on the second floor and his on the third. 我的房间在三楼，他的房间在四楼。

He was third in the exam. 他考试得了第三名。

注：有时序数词前不用定冠词，而用不定冠词，表示次第在原有基础上的增加。

如：We’ll have to do it a second time. 我们得再做一次。

小结：基变序，有规律1，2，3特殊记；--th 4上起ie来把y代替，8去t, 9去e, f来把ve替；若是遇到几十几，只变各位就可以。

三、分数表达法：分子用基数词，分母用序数词；分子是1，分母用单数；分子大于1，分母用复数。四．小数，百分数：小数点读point,小数点左边合起来读，右边分开来读也可合起来读0.4 zero point four ,10.23 ten point twenty-three 百分数用基数词+percent表示50% fifty percent 0.12% zero point one two percent

五、数词的应用1. 表示倍数①两倍用twice,表示三倍或三倍以上用：数+times 三倍three times ②A 正好是B的多少倍——A+倍数+as+adj+as +B ；A比B大（长，高，宽）多少倍：A+倍数+比较级+than.+B 我的房子是你的两倍大。

2.表’“每一段时间或每隔一段时间”： every+基数词（大于或等于2）

3．时刻表达法。（1）可以直接用基数词表示时刻，如：5：00 用英语表示为：five o’clock;

5：20 用英语表示为：five twenty。

（2）在半点之前可以用past；在半点之后可以用to。

4．表示长，宽，高，面积用基数词+单位词（meter,foot,inch,kilogram）+形容词(long,wide,high) 5．表温度时，用below zero,表示零下温度，温度用基数词+degree(s)+单位(centigrade)

数词专项练习题

1. It’s a big class, and ___________ ( 2 /3) of the students ______ girls.

2. Nine ______ pounds a week? Good. A hundred of B hundreds of C hundreds D hundred

3. ________________ ( 3 /5) of the money _____ been spent recycling the rubbish.

4.--- How old is your mother this year? ---_______.We had a party for her _______ birthday last

weekend. A Fortieth, forty B Forty, forty C Forty, fortieth D Fortieth, fortieth

5.I went to college in ____and began to work in___.

A the 1980s, twenty

B the 1980s, my twenties

C 1980, my twenty

D 1980s, my twenties

6. Time is not enough for so much work. _________ persons are needed,

A Other two

B Only two

C Two more

D Two others

8. ---How many teachers are there in your school?

---______, but I’m not sure. A Hundreds B Hundred C Hundreds of D One hundred

13.At the age of ____. He had his own lab. A thirty B thirtieth C the thirtieth D the thirty

16.Although he failed four times, his father still encouraged him to have a _____ try.

A second

B third

C fourth

D fifth

17.The foreign guests stayed in ______ last night.

A Room 608

B the Room 608

C the 608 room

D 608 the room

18. ____ the students will take part in this English speech contest.

A Two hundred of

B Two hundreds of

C Hundreds of

D Hundred of

19.It took me_____ to find out the key to the drawer.

A. one and half hours

B. one and a half hours

C. one and a half hour

D. one and half hour

20.The river is more than_____.

A.20 meter wide

B.20 meters wide

C. 20 meter of wide

D. wide of 20 meters

21.Bill is_ ___years old and he is a student of___.

A. nine, Second Class, Third, Grade B ninth, Class Second, Grade Third

C nine; Class Two, Grade Three D. ninth; Two Class, Three Grade

22.___ of them are dining at school. A Twelve B Twelfth C The twelve D The twelfth

23.Can you imagine what life will be like in___ time? A 20 years’ B 20 year’s C 20-year’s D 20 years

24.Now, everybody, please turn to Page____ and look at the____ picture.

A. Fifth, five B Five, fifth C. Fifth, fifth D. Five, five

25.___ people went to the concert which was held in People’s Square __the night of May Day.

A. Thousands of, in

B. Thousand , on

C. Many thousand, in

D. Thousands of, on

26.About ___ of the workers in the factory was born in the_____.

A. two-thirds, 1970

B. two-thirds, 1970s

C.two-third,1970

D.two-third,1970s

27.—Have you seen the CCTV news on TV?

--- Yes,____ children had a good festival in the _____ Children’s Day.

A. millions of, sixty

B. ten million, sixty C millions of, sixtieth D ten millions, sixtieth

28.—Shanghai has opened its_____ TV channel that send program in foreign languages.

--Great! I can improve my English over it. A. first B. a first C. the first D. one

29.Dick , it is the ___ time in ___days that you’ve made the same mistake.

A.two,three

B.second,three

C.two,third

D.second,third

30.—Excuse me, could you tell me where the nearest post office is?

--The nearest post office? You will have to walk____.

A.500-meter away B500 meter far C.500 meters farther D.500-meter-far away

31.Do you think there is any room for us ___? A. two B. the two C. second D. the second

32.If a=3, b=4,what’s the answer to the question a+2ab+1=?---____.

A. Twenty-eighth B .twenty-eight C. Thirteen D. Eighteen

33.—It’s 9:45. –Yes, It’s____.

A. fifteen from ten B .a quarter to ten C. fifteen past nine D a quarter past ten

34.—Excuse me, how does this number 20,135 read?

-- It reads______.