Cardinal words: Words that indicate the number of people or things.
Ordinal numerals: Words that indicate the order of people or things.
One. Cardinal number words.
1.How to read cardinal words.
1)1---12 : one two three four five six seven eight nine ten eleven twelve
2) 13---19: Add -teen at the end of the word: thirteen fourteen fifteen sixteen seventeen eighteen nineteen
3) 20, 30, 40, 50, 60, 70, 80, 90: every ten words end plus -ty: twenty thirty forty fifty sixty seventy eighty ninety
4) 21---99: Add a hyphen between the ten digits and the single digit.
21---twenty-one 99---ninety-nine
5) 101---999: Say a few hundred first, then add and, then add the last two digits or single digits.
101---one hundred and one 238---two hundred and thirty-eight
6) Numbers above 1000: first count the numbers from right to left, every three digits are separated by a comma, from right to left, the first comma means "thousand" read thousand, the second comma means "million" read million, and the third comma means "billion" read billion
18,657,421---eighteen million ,six hundred and fifty-seven thousand ,four hundred and twenty-one.
Two. Ordinal numerals
Cardinal number words to ordinal numbers
Formula: base order, regular, end of the word to add thOne, two, three, special notes, and the end of the word TDD (first, second, third) respectively
Eight to t, nine to e, ve to use f instead. ty becomes tie, and th, don't forget.
If there are dozens of them, just change one bit.
Three. The application of numerals.
1.Table number.
Structure: noun (the first letter should be capitalized) + cardinal word = the + ordinal number + noun.
lesson one = the first lesson
Note: Some numbers are generally only used in the first expression.
room 101.
2.The definite article the is generally preceded by an ordinal numeral, but when it is used in conjunction with the indefinite article a an, it means "another, another".
you’ve done it three times .why not try __fourth time ?
a.a b.an c.the d./
3.Add every before the number to indicate every ......Every .......
everyten days = every ninth day (every nine days).
Note: every + cardinal word + plural noun = every + ordinal noun - 1) + singular noun.
4.The plural form of the cardinal word indicates the age and age.
1) Indicates the year: in the + plural of the year in the centuries and decades.
In the seventies of the XIX century. _
2) Table Age: in one's + plural of whole ten means at the age of a few tens when someone is a few decades old.
At the age of forty:
5.hundred / thousand /million /billion
1).If there is a cardinal word before hundred, million million billion is not followed by s, nor is of ofIf there is no , add s but also carry of
every year __visitors come to china .
there are two __students in our school .
a.thousand b.thousands c.thousands of d.thousand of
2).If it is preceded by a few, many, and several modifications, it is usually plural, followed by of
3).If the noun is preceded by the modifier, the singular is used, followed by of
two __the students in our school are from the countryside .
a.hundred b. hundred of c.hundreds of d.hundreds
6.A few and a half expressions:
Cardinal word + and + a half + noun plural = cardinal word + noun (singular plural) +and +a half
two and a half hours = two hours and a half
7.Moment Expression:
1) Whole: cardinal word + o'clock
2) What time is it:
a).Direct reading: read the hours first, then the minutes.
3:25 --three twenty-five
b).Indirect Reading:
a) 30 minutes. Minutes + past + hours.
3：25 --twenty-five past three
b) 30 minutes. (60-minutes)+to+hours+1)
3:55 --five to four
c) 30 minutes = half 15 minutes = a quarter 45 minutes = threequarters
3:30 --half past three 3:15---a quarter past three
3:45 --a quarter to four
8.Date Expression:
Structure: 1).Month, day, year (ordinal number word for day, cardinal word for year).
Note: How to read the year: read the first two digits first, then the last two digits. Add the
1900---nineteen hundred 1807---eight and seven (eight o seven)
2008---two thousand eight
21 March 2007. --march the twenty-first ,two thousand and seven.
2).day, month, year (the + ordinal number + of + month, year).
March 21, 2007--- the twenty-first of March, two thousand and seven
9.Expressions of fractional words:
1).Structure: a).The numerator is a cardinal number, and the denominator is an ordinal number.
b).When the numerator is greater than 1, the denominator is added to the plural.
3/4---three fourths (three-fourths)
2).Note:
a).Several special forms of fractional words.
1/3—one third = a third
1/4—one fourth = a quarter
1/2—one second = a half
3/4—three fourths = three quarters
b).When a fractional word is used as the subject, the predicate verb is determined according to the noun after the fractional word.
two fifths of the milk __be ) drunk by tom .
one third of the students __be )girls .
Practice Questions:Complete the word according to the meaning of the sentence and the first letter prompt.
1. december is the t___month of the year.
2. we h**e nineteen students here. the new comer is the t___
3. when is lily’s birthday p___
4. m___is the third month of the year.
5. the n___month of the year is september.
Fill in the blanks with the appropriate form of the given word.
1. today we will learn the __twelve) lesson.
2. i sit in the __two) row in the class.
3. it’s august __twenty-one) today.
4. we h**e __45) sheep on the farm.
5. i think the __eight) lesson is difficult.
iii.Write appropriate numerals or phrases in English.
1.there are __days in a week.
2. there are usually __or __days in one month except __and there are usually __or __days in one year
3. new year’s day is the __day of each year.
4. thursday is the __day of week.
5. _is our national day.
6. the __month of the year is february.
7. there are __seconds in minute.
8. december __is christmas inamerica.
9. 2/3 and 1/4 is __
10. august is the __month of a year.
Single choice. 1. now children, turn to page __and look at the __picture in lesson two.
a. twentieth; one
b. twenty; one
c. twentieth; first
d. twenty; first
2. there are four people in front of him, so he is the __one.
a. five b. fifth c. first d. number
3. the __sunday in may is mother’s day.
a. first b. second c. one d. two
4. —when is your mother’s birthday?
it’s __
a. february eighths
b. july thirty-third
c. february 7th
d. march nineth
5. the __month of a year is april.
a. third b. forth c. fourth d. fifth
6. the girl is __today is her __birthday.
a. twelfth; twelfth
b. twelve; twelfth
c. twelfth; twelve
d. twelve; twelve
7. —when is the school trip?
_march 13th.
a. at b. on c. in d. it’s
8. —tom is a middle school student. how old is he?
a. the thirteen
b. thirteenth
c. thirty
d. thirteen
9. there are usually __days in february.
a. twenty-eight
b. twenty-nine
c. thirty
d. thirty-one
10. sunday is the __day of a week.
a. one b. two c. first d. second
Past exam questions. 1．basketball is so exciting that __people play it for fun.
a. million
b. two millions
c. million of
d. millions of
2.—how many friends will come to your birthday?
about .
a. fifteen; fifteen
b. fifteenth; fifteenth
c. fifteen; fifteenth
d. fifteenth; fifteen
3. helen loves reading. she has read __books this month.
a. five b. fifth c. five of d. fifth of
1. twelfth 2. twentieth
3. party 4. march 5. ninth
1. twelfth 2. second
3. the twenty-first
4. forty-five 5. eighth
iii. 1. seven
2. thirty, thirty-one, february, three hundred and sixty-five, three hundred and sixty-six
3. first 4. fifth 5. october1st
6. second 7. sixty 8. the twenty-fifth
9. eleven twelfths 10. eighth
1. d。The first space in this sentence is to use the method of "noun + cardinal word" to represent the number, and page twenty means "page twenty"; The definite article the, which is preceded by the second space, and the noun is after the number, so the ordinal number is used to indicate the meaning of "the first piece".
2. b。Understood from the meaning of the sentence, there are already four people in front of him, so he is the fifth. Ordinal numerals are used after the definite article the, and option c is also ordinal, but does not conform to the meaning of the sentence.
3. b。After the definite article the, ordinal numerals are used to indicate the meaning of the number, and at the same time, it is necessary to understand some cultural common sense that Mother's Day is the second Sunday in May every year, so the ordinal number second is used.
4. c。Expression of the day of the month. Ordinal words should be used on the day, and the correct form of ordinal words has items b and c; There are only 31 days at most in a month, so item b is wrong. So the correct answer is c.
5. c。April is the fourth month of the year, and the ordinal word for 4 is fourth, so choose c.
6. b。Meaning: "This girl is twelve years old, and today is her twelfth birthday. From this, it can be seen that the first empty is a cardinal number word, and the second empty is an ordinal number. Therefore, choose B.
7. b。On the day of the month, the preposition on should be used.
8. d。The number of years old should be used as a cardinal word, because Tom is only a middle school student, so it can't be 30 years old, so choose D.
9. a。February usually has 28 days.
10. c。Sunday is the first day of the week, so choose C.
Link to past papers. 1. d。Hundred, thousand, and million represent numbers, and when they are preceded by specific numbers, do not add -s, and when they are used in conjunction with of of to represent an approximate number, they should add -s.
2.d。According to the meaning of the sentence, the question uses an ordinal number to indicate "the fifteenth birthday", and the answer uses a cardinal number to mean "about 15 friends".
3．a。Meaning: Helen loves to read. She's already read five books this month, and she should use the cardinal word five to modify the books.