数词
I.定义与分类
数词是指表示数目多少或顺序先后的词。表示数目多少的数词叫基数词，如one, five, ten, thirty, sixty-five 等；表示顺序先后的数词叫序数词，如first, sixth, tenth, twenty-first 等。数词用法相当于名词和形容词，在句中可用作主语、宾语、表语、定语、同位语等。
II. 基数词
1. 英语中没有“万”这个读数单位，要表示汉语中的“万”，英语需借用thousand一词，如“一万”用“十个千”表示(ten thousand)，“十万”用“一百个千”表示(one hundred thousand)。
2. 用作基数词单位的hundred, thousand, million, billion 通常不带复数词尾-s，但若用于表示数百、数千、数百万这样的泛指，则用复数。如：
About two thousand people died in the earthquake. 大约有两千人在地震中丧生。Thousands of people go to the seaside every year. 每年成千上万的人到海滨去。
3. 表示整十的基数词用复数形式可以表示人的大约岁数或年代。如：
He is in his early twenties. 他才二十出头(from 。
This took place in the 1930s. 这事发生在20世纪30年代。
III. 序数词
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 (the) 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(from 。
序数词前用定冠词和不定冠词的区别在于：定冠词表特指，不定冠词表泛指，有类似another 的意思，但比another 的意思更明确。
IV. 分数、倍数、小数和百分数
1. 分数。
(1)分数由基数词和序数词构成：分子用基数词，分母用序数词，当分子超过“1”时，分母用复数。如：
two thirds=2/3 three fifths=3/5
注：1/2 通常读作 a [one] half，一般不读作a second；1/4 可读作 a [one] fourth，也可读作 a [one] quarter。
(2) 分子与分母之间加in, 分子在前，分母在后，分子分母都用基数词。如one in ten 十分之一，five in eight八分之五。
(3) 分子与分母之间加out of , 分子在前，分母在后，分子分母都用基数词。如one out of ten 十分之一，five out of eight八分之五。
2. 倍数。英语中表示倍数时通常借助half, double, twice, three times等之类的词。如：They're twice the size of chickens. 它们比鸡大一倍。
Their house is about three times as big as ours. 他们的房子大约有我们房子三倍大。
倍数的几种表达法
(1) 倍数+as +形容词/副词(原级)+ as。如：This bridge is three times as long as that one.这座桥是那座桥的三倍长。
(2) 倍数+形容词或副词的比较级+than。如：This bridge is three times longer than that one.这座桥是那座桥的三倍长。
(3) 倍数+ the size/length/weight…+of+表示比较对象的名词。如：
This bridge is three times the length of that one. 这座桥是那座桥的三倍长。
(4) 倍数+what引导的从句。如：
The college is twice what it was 5 years ago.这所大学是它五年前的两倍。
3. 百分数。百分数由基数词和百分号(%)组成，百分号(%)读作per cent。如：
thirty percent=30%, 60 percent=60%
用“基数词＋percent”。若表示几分之几或百分之几十的人或物时，用加of，作主语时，谓语动词的数与of后的名词数一致。如：
Forty percent of the students wear glasses.百分之四十的学生戴眼镜。
Two-thirds of the money was spent on food.三分之二的钱都花在食物上。
注意：percent一律用单数形式.
4. 小数。
小数点前的数按总数念，同其它基数词读法一样，小数点用point，小数点后面的数按基数词一个一个单独念。如读作nine point six five。读作two hundred and eighteen point three nine。
V. 日期
1949年1949读作nineteen forty-nine
6月23日June 23rd 读作June (the) twenty-third或the twenty-third of June
2006年10月October 2006 读作October, two thousand and six
1600年5月2日May 2nd, 2005 读作the second of May, sixteen hundred
VI. 钟点
半小时用half，一刻钟用a quarter，半小时以内用past，超过半小时用to。
08:00 eight o’clock或eight
09:15 nine fifteen或a quarter past/after nine
02:30 two thirty或half past/after two
05:45 five forty-five或a quarter to six
14:15 fourteen fifteen= p. m.
23:05 twenty-three oh five
24:00 twenty-four hundred hours=midnight
VII. 编号
1. 单纯的编号，可在基数词前加number，简写为No.。如第二。
2. 序号与事物名词连用时分三种情况(from ：
(1)小序号可用“the +序数词+名词”或“名词+基数词”。如第一次课可以说the First Lesson或Lesson One。
(2)大序号通常只用“名词+数词”。如808号房间Room 808；168路公共汽车Bus ；南京路1490号1490 Nanjing Road；电话号码(用基数词逐个念，0念字母O)。
(3 )用“a/the + number+基数词+名词”。如a bus一辆三路公共汽车，the bus那辆三路公共汽车。
VIII. 约数
1. 用tens/dozens/scores/hundreds/thousands/millions of表示“几十、几百、上千、成千上万”等。如：
The boy bought dozens of pencils.那个男孩买了几十支铅笔。
Thousands of people died in the earthquake.数以千计的人死于地震。
注意：
(1)dozen, score, hundred, thousand, million等表示确切数量时，不用复数。如five dozen eggs 五打鸡蛋, three hundred people五百个人。但score用法略有不同，与数词连用时，也加of。如two score of eggs (40个蛋)。
(2)有时单数形式的dozen, score, hundred, million等前面有数词，后面也有of，此时的of表示的是部分与整体的关系，其后一定是them, us之类的人称代词或者有the, these, your之类的限定词。如I want to buy three dozen of the eggs. (我想买其中的三打蛋) (from 用less than, under, below, almost, nearly, up to等来表示小于或接近某数目。如nearly two hours将近两个小时。
3. 用more than, beyond, or more, over, above等来表示超过或多于某个数目。如more than 100 years一百多年。
4. 用or, or so, about, around, some, more or less等表示在某一数目左右。如about 50 pens大约五十支钢笔，a month or so大约一个月。
5. 用to, from…to…, between…an d表示介于两数词。如：
His salary rose from 100 dollars a month to 120 dollars a month.他的工资从每月100美元升到了每月120美元。
IX. 年代
表示在某个世纪的几十年代，用“in the +逢十的基数词的复数”。基数词的复数若用阿拉伯数字表示，可直接加s，也可加’s。如“在20世纪80年代”是in the 1980’s或in the 1980s，读作in the nineteen eighties。
注意：不要漏掉the。
X.年龄
1. 表示某人几岁的确切年龄，用“基数词＋years old”或“基数词＋of age”或者“at the age of＋基数词”，也可直接用基数词。如：
He began to study English at (the age of) seventy. 他70岁开始学英语。
She’s seventy years old.= She’s seventy years of age.她70岁了。
2. 表示某人几十多岁这样的约略年龄，用“in one’s+逢十的基数词的复数(如tens, twenties, thirties等)”来表达。如：
He went to America in his thirties.他30多岁时去了美国。
XI. 算式
2+8=10 Two plus eight is/equals ten.
Two and eight are/equal ten.
If you add two and eight, you will get ten.
8-2=6 Eight minus two is/equals six.
Two from eight is/equals six.
If you subtract two from eight, you will get six
2x8=16 Two multiplied by eight is/equals sixteen.
Two times eight is/equals sixteen.
If you multiply two by eight, you will get sixteen.
8÷2=4 Eight divided by two is/equals four.
Eight over two is/equals four.
If you divide eight by two, you will get four.
数词专项练习
( ) 1. The People’s Liberation Army was founded _______.
A. on August 1, 1927
B. in 1927, 1 August
C. on August 1st, 1927
D. in August 1, 1927 ( ) 2. A _______ boy can sing the English song very well.
A. ten-year-old
B. ten years old
C. ten-years-old
D. tenth years old
( ) 3. An hour later, _____ minister was sent to see the “magic cloth” woven by those two men.
A. two
B. the second
C. the two
D. second
( ) 4. Do you think there is any room for us ________
A. two
B. the two
C. second
D. the second
( ) 5. Which number is wrong _______.
A. Ninety
B. Ninteen
C. Ninth
D. Nineteenth
( ) 6. The number 4,123 is read _______.
A. four thousand one hundred and twenty-three thousand and one hundred twenty-three C. four thousand and a hundred and twenty-three D. four thousands a hundred and twenty-three ( ) 7. The old professor still works hard though he is _________.
A. in his sixty
B. in his sixties
C. in sixties
D. in the sixty
( ) 8. This classroom is ________ ours.
A. three times big as
B. as three times big as
C. three times as big as
D. as big three times as ( ) 9. The basketball team of our school ranks ________ in the match.
A. three
B. third
C. the three
D. the third
( ) 10. Which is the car that he drives It’s ________.
A. fifty two
B. the fifty-two cars
C. the car fifty four
D. the fifty-fourth car
( ) 11. Which of the following is wrong ________.
A. He is a fifteen-year-old boy.
B. He is at the age of 15.
C. He is a boy of 15.
D. He is fifteen year old.
( ) 12. Our school is not very big. There are only ________ students.
A. nine hundreds of
B. nine hundred
C. nine hundreds
D. nine hundred of
( ) 13. ----How many new words are there in ________ lesson ----There are only _________.
A. five; fifth
B. fifth; five
C. the fifth; the five
D. the fifth; five
( ) 14. ________, Coca-Cola began to enter China’s market.
A. In 1970’s
B. In 1970s
C. In the 1970s’
D. In the 1970s
( ) 15. There was no bus in that small town. We had a ________.
A. ten miles walk
B. ten-mile walk
C. ten mile’s walk
D. tenth mile walk
( ) 16. Which room do you live in ________.
A. The 201 Room
B. Room 201
C. Room 201st
D. The 201’s Room
( ) 17. Three hundred thousand one hundred and seventy means ________.
A. 3,170
B. 3,117
C. 300,170
D. 30,170
( ) 18. On May ________, ________ people traveled round the country.
A. the first, millions
B. the first, millions of
C. first, the millionth
D. first, millions ( ) 19. ________ of them are dining at school.
A. Twelve
B. Twelfth
C. The twelve
D. the 12th
( ) 20. 7:17 is read ________.
A. seven and seventeen
B. seven seven
C. seven one seven
D. seven seventeen
( ) 21. Four ________ two is two.
A. plus
B. minus
C. times
D. divided by
( ) 22. Three ________ five is eight.
A. plus
B. minus
C. times
D. divided by
( ) 23. Three ________ seven is twenty-one.
A. plus
B. minus
C. times
D. divided by
( ) 24. Forty-two ________ seven is six.
A. plus
B. minus
C. times
D. divided by
( ) 25. There are ________ days in a year.
A. three hundred sixty and five
B. three hundred and sixty-five
C. three hundreds and sixty-five
D. three hundred sixty-five
( )26. There are ________ students in that school.
A. two thousand eight-six
B. two thousand eighty-six
C. two thousand and eighty-six
D. two thousands and eighty-six
( ) 27. It took me ________ to get there.
A. two hours and a half
B. two hours and half
C. two hour and a half
D. two hour and half ( ) 28. ________ is a very tall boy.
A. The twelve
B. The twelveth
C. The twelfeth
D. The twelfth
( ) 29. “What year is it” “It’s ________.”
A. nineteen hundred and ninety-seven
B. nineteen and ninety-seven
C. nineteen ninety and seven
D. nineteen ninety-seven
( ) 30. “What’s the date today” “It’s _________.”
A. Tuesday
B. June Fourth
C. June the four
D. June the fourth
( ) 31. The train from Shanghai will arrive ________.
A. in quarter past six
B. in a quarter past six
C. at quarter past six
D. at a quarter past six ( ) 32. My friend was born on _________.
A. three of July, 1979
B. the third of July,1979
C. 1979, July the third
D. 1979, the third of July ( ) 33. ________ is less than ________.
A. One-third; two-thirds
B. One-third; two-third
C. First-three; first-threes
D. One-t hird; one-three
( ) 34. Which lesson did you learn yesterday _ _______.
A. Lesson Seven
B. Lesson seventh
C. The 7 Lesson
D. 7 Lesson
( ) 35. There will be a comedy on TV at ________ this evenin g.
A. seven past thirty
B. half past seven
C. seven the thirty
D. thirty to seven
( ) 36. 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
( ) 37. I’m so tired after ________ walk.
A. three hours
B. three hours’
C. three hour’s
D. three hour
( ) 38. There are ________ stars in the sky.
A. million of
B. millions of
C. the million
D. a million of
( ) 39. The street is ________ wide.
A. two meters
B. two meter
C. the two meter
D. a two meter
( )40. Most of the stars are much bigger than the sun. But they are ____ light years away from us.
A. thousand
B. thousands
C. thousand of
D. thousands of
( )41. _______ of the surface(表面) of the earth is covered with water.
A. First third
B. Two thirds
C. One three
D. Two three
( )42. There are _______ people in my family. We live on the _______ floor in a tall building. A. five, six B. fifth, sixth C. fifth, six D. five, sixth
( )43. The flood happened _______.
A. in the summer of 1998
B. in the summer of 1998s
C. in 1998 of the summer
D. in 1998s of the summer
( )44. --- How soon will you finish your work --- In about _______.
A. one and a half month
B. one month and a half
C. one and half a month
D. a month and half ( )45. We will have a _______ holiday. What about going to Suzhou
A. five days
B. five day
C. five-day
D. five-days
( )46. We are sure the _______ century will bring us more hopes.
A. twentieth-first
B. twentieth-one
C. twenty-one
D. twenty-first
( )47. At the age of _______, he had his own lab.
A. thirty
B. thirtieth
C. the thirtieth
D. the thirty
( )48. --- Would you like some fruit, madam --- Oh, yes. _______, please.
A. 5 kilo bananas
B. 5 kilos of bananas
C. 5 kilo of bananas
D. 5 kilos of banana
( )49. This building is for a _______.
A. family of three
B. three people
C. thre e peoples family
D. three people’s family
( )50. Look at the table. Tom wants to buy a hamburger, a large coke and an ice-cream. How much will he pay
Hamburger $ Orange juice $ Hot dog $ Coffee $
Ice-cream $ Water $ Popcorn $ Large coke $
A. Three dollars and sixty cents.
B. Five dollars and thirty-five cents.
C. Five dollars and sixty cents.
D. Two dollars.
音标语法词汇阅读综合训练
I. Fill in the blanks according to the phonetic transcriptions.
II. Complete the following passages with the words or phrases in the box. Each can only be used once.
A. chairs
B. amazing
C. cause
D. at least
E. dangerous
Accidents can happen when people use tables and ___７___ as ladders and misuse kitchen appliances. Many home accidents involve falls. Objects that are left on floors can make others fall over. The kitchen is another place where many falls take place. Cleaning up water off the floor can prevent many accidents.
Burns happen mostly at home, and many of them happen in the kitchen. A hot oven is an obvious danger that can ___8___ painful burns. Cooking with heat should be done by adults, or ___9___ with an adult around.
A. without
B. signs
C. instead of
D. as well as
E. regularly
should have one smoke detector（探测器）on each floor. The detectors can detect, or sense, any sign of smoke and warn you with an alarm.
Every family member should know what to do when there is a fire. Once agreed upon, these safety rules should be reviewed and practised together ___11___. This practice will create a much safer home.
Accidents often happen in public places ___12___ at home. Accidents take place in these places for two main reasons. First, most visitors are unfamiliar with these places. Second, public places are often crowded. While you are in these places, pay attention to ___13___ warning about any dangers.
III. Complete the sentences with the given words in their proper forms.
14. As we all know, Edison was one of the greatest _________ in the world. (science)
15. We must keep the balance of _________. (natural)
16. Of all the subjects, I like _________ best. (chemical)
17. Staying in an air-conditioned room in summer makes me feel _________. (comfort)
18. Teachers should be _________ to all the students. (patiently)
19. It is _________ to talk loudly in the reading room. (polite)
20. The detective story has a _________ ending. I like it very much. (drama)
21. All the staff in this big company had _________ exam last week. (medicine)
IV. Complete the following sentences as required.
22. Cathy is keen on playing chess. （保持句意基本不变）
Cathy is _________ _________ playing chess.
23. My mother seldom goes to work by car.（改为反意疑问句）
My mother seldom goes to work by car, _________ _________
24. I go to the cinema once a month. （对划线部分提问）
_________ _________ do you go to the cinema
25. It is very important to pay attention to road safety. （改为感叹句）
_________ _________ it is to pay attention to road safety!
26. The government will widen this old street next year. （改为被动语态）
This old street will _________ _________ by the government next year.
27. When will Mary go travelling The professor wanted to know. （改为复合句）
The professor wanted to know _________ Mary _________ go travelling.
28. paid, Miss Li, in that supermarket, 800 yuan, a new carpet, for （连词成句）
___________________________________________________.
V. Choose the best answer.
Most people have dogs as pets. But do you know that dogs can also do different jobs
On September 11, 2001, terrorists (恐怖分子) attacked the . and nearly 3,000 people died. At that time over 300 dogs were there to help to find and save people. They are working dogs.
The U.S. army began to use dogs during World War I. Now, about 2,700 dogs are working in Afghanistan and Iraq, according to Discovery News. These four-legged soldiers use their powerful sense of smell to find bombs, drugs and enemies.
Dogs are “man’s best friends”. They can help us work better.
The most common jobs for working dogs are in search and rescue. They can find lost people or bodies after a big disaster or in the wild.
Guide dogs can help blind people walk safely. These dogs can understand some words. Guide dogs are popular in the U.S. and Japan. Many guide dogs visited China during the Beijing Olympic Games.
There are also dogs working with doctors. They can help autistic(自闭症的) children. These children sometimes don’t talk and like to do the same things again and again. A study from Canada in 2010 showed that dogs could make autistic children feel relaxed and safe.
Herding dogs are important to sheep owners. They keep the sheep safe. They are common in Australia, New Zealand and some parts of China. Nowadays, many people have them as pets. So dogs are not only our pets but also our workmates now.
( ) 29. Working dogs in Afghanistan and Iraq help to _________.
A. keep people safe
B. find and save people
C. find bombs, drugs and enemies
D. keep the environment clean
( ) 30. The most common jobs for working dogs are in _________.
A. helping blind people walk safely
B. search and rescue
C. helping autistic children
D. keeping sheep safe
( ) 31. Guide dogs are popular in _________.
A. China and Japan
B. Canada and the U.S.
C. Australia and the U.S.
D. the U.S. and Japan
( ) 32. A lot of guide dogs came to China in _________.
A. 2001
B. 2007
C. 2008
D. 2010
( ) 33. The underlined words “herding dogs”in Paragraph 8 mean “_________”in Chinese.
A. 狩猎犬
B. 牧羊犬
C. 警犬
D. 玩具犬
( )34 The best title for this passage is _________.
A. Four-legged soldiers
B. Guide dogs are popular
C. Dogs are our pets
D. People and dogs make a great team
VI. Choose the best words or expressions and complete the passage.
If you want to know what the weather will be ___35___ tomorrow, you can find a forecast in the newspaper, on TV, or on the Internet. Until about 150 years ago, however, forecasts were made by people ___36___ their surroundings. They paid attention to the clouds and the wind. They noticed what animals were doing and how plants were growing.
Today, forecasting tomorrow’s or ___37___ week’s weather is the job of meteorologists (气象学者), scientists who study the weather. Modern weather forecasting depends on collecting enormous（巨大的）amounts of information—all around the world.
___38___ in the 1840s, American scientist Joseph Henry got the ball rolling(开始某项活动) for modern forecasting. He set up a network of about 150 volunteer weather observers across the . Eventually, 600 observers ___39___ temperature, air pressure, and other conditions in their area every day. They sent this information by telegraph to the Smithsonian Institution in Washington , where Henry worked. There, he displayed the nation’s weather conditions on a large map. The success of Henry’s volunteers ___40___ the creation of today’s National Weather Service.
( ) 35. A. as B. like C. for D. about
( ) 36. A. observing B. discovering
C. gaining
D. learning
( ) 37. A. last B. first C. every D. next
( ) 38. A. Back B. Over C. Away D. Past
( ) 39. A. measured B. praised C. tested D. increased
( ) 40. A. stood for B. seemed like C. led to D. turned into
VII. Read the passage and fill in the blanks with proper words.
Cell phones and the Internet have improved our lives in many w___41___. However, they have also brought a number of worrying problems that need to be noticed.
Many car accidents are c___42___ by cell phones. Now people can use cell phones to get on the Internet, and it is very convenient. But some drivers get on the Internet when they are driving. Driving needs drivers’ attention. These c___43___ drivers are a danger to us all by looking at their cell phones and not at the road.
Many of the dangers of the Internet are well known. Children who v___44___ websites without their parents’permission （允许）sometimes talk to strangers, and put themselves in great d___45___. People with blogs sometimes post embarrassing photographs of others on their websites without permission. There are also people who use the Internet to get other people’s p___46___ information.
Cell phone and Internet safety tips:
If you need to use a cell phone while driving, use a “hands-free”phone.
In difficult driving situations such as rain or snow, do not use your phone at all.
Tell your children not to talk with anyone they do not know on the Internet.
R___47___ to give out any important personal information on the Internet.
VIII. Answer the questions.
Ella was left-handed. When she got in the third grade, her marks were extremely poor because her teacher, Miss Mennis, couldn’t understand Ella’s terrible handwriting. Miss Mennis forced Ella to write with her right hand. She even stood over poor little Ella and made sure that the pupil wasn’t using her left hand.
When Ella got in the fourth grade, she had a much younger teacher, Miss Kindred. She gave pupils handwriting exercises. One day, she asked Ella to stay in the classroom after class. Ella thought Miss Kindred was going to punish（惩罚）her because of her bad handwriting. Miss Kindred asked Ella to write a few words with her right hand. Then she made Ella write a few words with her left hand. Ella looked up at her when she finished writing, and the teacher had a warm smile on her face.
Miss Kindred gave Ella a writing exercise to take home with a note in an envelope to her father. Ella gave him the note and began doing her homework. Her father watched her while she was writing with her left hand. He praised her, saying she wrote well. Ella became proud of herself. Ella started to enjoying writing, and her marks improved greatly. Whenever Ella made an A on her paper, Miss Kindred always put a gold star on Ella’s spelling paper.
When Ella got in the sixth grade she lived with her grandparents. When the grandfather needed a letter to be written, he asked Ella to write it for him. That made Ella feel very good about herself. Ella’s grandparents also asked her to write letters for the old neighbours who could not read and write.
In high school, the English teacher sometimes asked the students to go to the blackboard to write something. Ella’s classmates were surprised to watch her left hand move quickly across the blackboard. Sometimes they would laugh, saying. “Ah, look at the L efty now!”
Ella laughed, too. She had confidence within herself.
48. Who was Ella’s teacher in the third grade, Miss Mennis or Miss Kindred
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49. How was Ella’s handwriting in the third grade
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50. Why did Ella start to enjoy writing
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51. How did Miss Kindred praise Ella when she made an A on her paper
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52. What did Ella often do when she lived with her grandparents
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53. What can we learn from the story
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参考答案
数词专项练习
1-5 CABAB 6-10 ABCBD 11-15 DBDDB 16-20 BCBAD 21-25 BACDB 26-30 CADDD
31-35 DBAAB 36-40 BBBAD 41-45 BDABC 46-50 DABAC
音标语法词汇阅读综合训练
I. 1. Remember 2. usually 3. country 4. battle 5. would rather
II. (A) 6—9 EACD (B) 10—13 AEDB
III. 14. scientists 15. nature 16. chemistry 17. comfortable 18. patient 19. impolite
20. dramatic 21. medical
IV. 22. interested in 23. does she 24. How often 25. How important 26. be widened 27. when, would 28. Miss Li paid 800 yuan for a new carpet in that supermarket.
V. 29—34 CBDCBD
VI. 35—40 BADAAC
VII. 41. ways 42. caused 43. careless 44. visit 45. danger 46. personal 47. Refuse
VIII. 48. Miss Mennis.
49. It was terrible.
50. Because she was praised by her teacher and her father.
51. By putting a gold star on her spelling paper.
52. She wrote letters for her grandfather and the old neighbours.
53. Encouragement can bring people power. / We should learn to accept difference in life. (Any reasonable answer is acceptable.)
人教版英语英语数词复习附答案解析 一、初中英语数词 1．Our country is 70 years old this year. We will celebrate her _____ birthday on Oct. 1. A. the seventieth B. seventieth C. the seventy D. seventy 【答案】 B 【解析】【分析】句意：今年我们的国家70岁了，我们将在10月1日庆祝她的70岁生日。表达某人几岁生日用one's+序数词+birthday，seventy，70，基数词；seventieth第七十，序数词，排除C、D，故选B。 【点评】考查序数词用法，注意平时识记one's+序数词+birthday。 2．The number of the students in our school is about four __________. _______ of them are girls. A. thousand; Two thirds B. thousands; Two third C. thousands; Two thirds D. thousand; Two third 【答案】 A 【解析】【分析】句意：我们学校的学生人数大约是四人。三分之二是女孩。four基数词后用thousand的原形，分数表达形式是分子是基数词，分母是序数词，分子大于一，分母用复数形式，故三分之二是two thirds，故选A。 【点评】考查数词，注意分数的用法。 3． should not be allowed to drive. A. Sixteen-year-old B. Sixteen years old C. Sixteen-year-olds D. Sixteen year olds 【答案】 C 【解析】【分析】句意：16岁的青少年不允许开车。sixteen-year-olds：十六岁的孩子（青少年），是名词性短语；sixteen-year-old：通常只做形容词用，十六岁的；sixteen years old：十六岁。结合句意，故答案为C。 【点评】考查数词和名词的用法。注意识记名词sixteen-year-olds。 4．Lin Tao, an ______ boy, was very brave and helped his classmates run out of the classroom when the earthquake happened. A. 8-year-old B. 8 year old C. 8-years-old D. 8 year olds 【答案】 A 【解析】【分析】句意：林涛，八岁的男孩，很勇敢并且在地震发生时帮助他的同学从教室里跑出来。数量词在句中作前置定语，注意量词用单数，并且带连字符号，故选A。【点评】考查数量词在句中作定语的用法。 5．Most of the doctors in this hospital were born ________, and they are ________now. A. in the 1970; in their fifties B. in 1970s; in the fiftieth C. in the 1970s; in fiftieth D. in the 1970s; in their fifties
数词 I.定义与分类 数词是指表示数目多少或顺序先后的词。表示数目多少的数词叫基数词，如one, five, ten, thirty, sixty-five 等；表示顺序先后的数词叫序数词，如first, sixth, tenth, twenty-first 等。数词用法相当于名词和形容词，在句中可用作主语、宾语、表语、定语、同位语等。 II. 基数词 1. 英语中没有“万”这个读数单位，要表示汉语中的“万”，英语需借用thousand一词，如“一万”用“十个千”表示(ten thousand)，“十万”用“一百个千”表示(one hundred thousand)。 2. 用作基数词单位的hundred, thousand, million, billion 通常不带复数词尾-s，但若用于表示数百、数千、数百万这样的泛指，则用复数。如： About two thousand people died in the earthquake. 大约有两千人在地震中丧生。 Thousands of people go to the seaside every year. 每年成千上万的人到海滨去。 3. 表示整十的基数词用复数形式可以表示人的大约岁数或年代。如： He is in his early twenties. 他才二十出头(from 。 This took place in the 1930s. 这事发生在20世纪30年代。 III. 序数词 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 (the) 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(from 。 序数词前用定冠词和不定冠词的区别在于：定冠词表特指，不定冠词表泛指，有类似another的意思，但比another 的意思更明确。 IV. 分数、倍数、小数和百分数 1. 分数。 (1)分数由基数词和序数词构成：分子用基数词，分母用序数词，当分子超过“1”时，分母用复数。如： two thirds=2/3 three fifths=3/5 注：1/2 通常读作 a [one] half，一般不读作a second；1/4 可读作 a [one] fourth，也可读作 a
数词的用法 责编：王晓丽 【真题再现】 1. About of the students like keeping diaries in English in our class. (2014安顺) A. two fifth B. two fifths C. second five D. two five 2. David Beckham has ______ children. Brooklyn Beckham is his ______ son.(2014宜宾) A. third, first, B. three, one C. three, first D. third, one 3. It's never too old to learn. Karl Marx began to learn English in his ______. (2014 广东) A. the fiftieth B. fiftieth C. fifty D. fifties 4. In his ________，Wilson returned to his hometown and began to teach. (2014漳州) A. thirty B. thirties C. thirtieth 5. ______ month of the year is May. (2014天津) A. Two B. The second C. Five D. The fifth 6. I live in Room 403, Sam lives in the room right above mine, on the _______ floor．(2015广东) A．third B．three C．fifth D．five 7. Basketball is so exciting that _______ people play it for fun. (2015天津) A. million B. two millions C. million of D. millions of 8. Boys and girls, please turn to Page _______ and look at the _______ picture. (2015呼和浩特) A．Fifth; five B．Five; five C．Fifth; fifth D．Five; fifth 9. Helen loves reading. She has read _______ books this month. (2015重庆) A. five B. fifth C. five of D. fifth of 10．It’s my ________ time to come to the bookstore this month because most of the books in it are my favorite. (2015哈尔滨) A．forth B．four C．fourth 11.The ________ biggest earthquakes in Nepal (尼泊尔) have killed more than 8,000 people.(2015成都) A．two B．second C．twice 12. We are going on holiday in the _______ week of July．(2015吉林) A. two B. twice C. second 13. _______ of the land in that district is covered with trees and grass. (2015兰州) A. Fifth two B. Two fifth C. Fifth second D. Two fifths 【答案与解析】 1. B。句意：我们班大约有五分之二的同学喜欢写英语日记。分数是由基数词和序数词 一起来表示的。基数词作分子，序数词作分母，除了分子是“1”以外，其它情况下序数词都要用复数形式。 2. C。句意：大卫·贝克汉姆有三个孩子，布鲁克林·贝克汉姆是他的第一个孩子。基数 词表示名词的数目的多少。序数词表示事物的顺序。根据句意，可知选C。 3. D。句意：活到老，学到老。Karl Marx在他五十多岁的时候开始学英语。“in one's ＋逢十数字的复数形式”表示“在某人,,岁时”。例如：in her thirties在她三十多岁时。故D项正确。 4. B。本句意为：在他三十多岁时，威尔逊回到家乡，开始教学。in one's thirties在某人 三十多岁时；故答案选B。 5. D。基数词表示数量的多少，序数词表示顺序，此处明显选择序数词，第五个月是 May.
?量词: 通常用来表示人、事物或动作的数量单位的词，叫做量词。 例如：a bag of (rice), a piece of (news), a cup of (tea) ?量词特点: 在英语中，有很多量词词组，例如：a group of，a flock of，a bunch of，a bundle of等等. 量词词组粗略地归纳了以下的特点，具体表现为： 特点一： 英语量词词组所表示的数或量，大致可归纳为四种类型，即定量、不定量、大量和少量。 1．表示定量的量词词组，譬如： a couple of（两个、一对） a couple of days， a couple of players， a couple of times； a cupful of（一满杯） a cupful of jelly， a cupful of water； a portion of（一份／客） a portion of duck， a portion of roast beef。 2．表示不定量的量词词组，譬如： a majority of（大多数／大半）
a majority of opinions， a majority of votes； an atom of（一点） an atom of food， an atom of truth； a spell of（一阵／一段时间） a spell of fine weather， a spell of coughing。 3．表示大量的量词词组，譬如： a flood of—a flood of ink（洋洋大篇）， a flood of tears（泪如泉涌）； a heap of—a heap of earth（一堆泥土）， a heap of customers（许多顾客）； a mountain of—a mountain of debts（债台高筑），a mountain of difficulties（困难重重）。 4．表示少量的量词词组，譬如： a drop of—a drop of fever（有点热度）， a drop of dew（一点露水）； a particle of—a particle of feeling（一丝感情）， a particle of dust（一点灰尘）； a shadow of—a shadow of doubt（一点怀疑）， a shadow of freedom（一点自由）。
英语数词的用法 Revised as of 23 November 2020
英语数词用法详解 数词部分 ▲掌握分数、时间、日期的表达法。 【复习要点】 （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 one11 eleven100 a?hundred 2 two12 twelve20 twenty1000 a?thousand 3 three13 thirteen30 thirty1，000，000 a?million 4 four14 fourteen40 forty10，000，000 ten million 5 five15 fifteen50 fifty100，000，000 a?hundred million 6 six16 sixteen60 sixty1，000，000，000 a?billion 7 seven17 seventeen70 seventy 8 eight18 eighteen80 eighty 9 nine19 nineteen90 ninety 10 ten 说明： 1．13—19是由个位数加后缀-teen构成。注意其中13、15的拼写是thirteen和fifteen。
2．20—90由个位数加后缀-ty构成，注意其中20—50的拼写分别是twenty, thirty, forty?和fifty;80的拼写是eighty。 3．其它非整十的两位数21—99是由整十位数加连字符“-”，再加个位数构成。如：81 eighty-one。 4．101—999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。 5．1000以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 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）来表达，其换算关系为：1万=10 thousand;1亿=100 million; 10亿=a thousand million=a billion。 6．多位数的读法： 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），第二个间隔或逗号前是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：eight hundred and eighty-eight million。 基数词的用法： 1.基数词在句中的作用
数词的用法 （一）基数词写法和读法：345three hundred and forty-five ；基数词一般是单数形式，但下列情况，常用复数： a.与of短语连用，表示概数，不能与具体数目连用，如scores of people指许多人； b.在一些表示"一排"或"一组"的词组里； 女口：They arrived in twos and threes他们三三两两的到达了。 c. 表示"几十岁”为doze ns of ages d. 表示"年代”，用in the数词复数； e. 在乘法运算的一种表示法里，如：3 x 5 = 15 Three fives is （are） fiftee n. 基数词1-12 是独立单词,需逐个记忆。 基数词 1 3-1 9是个位数词的词干后加-teen 构成。其中thirteen, fifteen, eighteen 变化不规则。 基数词20-90 是在十位数词后面加-ty 构成。其中twenty, thirty, forty, fifty, eighty 变化不规则。 基数词21-99是在十位数词后面加上个位数词合成，中间加上连字符"—"。 例如：21 twenty—one 95 ninety—five 基数词三位以上的数词,在百位和十位之间,一般要用连词"and "。 例如：132 one hundred and thirty一two. 1340 one thousand three hundred and forty . 表示"一万，一亿"的词英语中没有，ten thousand十千，十千（1000X 10 = 一万30 万可用three hundred thousand 来表示
数词介词的用法 集团文件发布号：（9816-UATWW-MWUB-WUNN-INNUL-DQQTY-
代词用法详解 （人称代词） 人称代词主格：作主语，表示谁怎么样了、干什么了。 I am a teacher. You are student. 人称代词宾格作宾语，表示动作行为的对象，一般放在动词后面。 Give it to me. 巩固训练 用所给代词的正确形式填空。 1. These are ______ ( he ) brothers. 2. That is _______( she ) sister. 3. Lily is _______ ( Lucy ) sister. 4. Tom, this is _____ ( me ) cousin, Mary. 5. Now _____________(her parent) are in America. 6. Those __________ ( child ) are _____ ( I ) father’s students.
7. Do you know ______ ( it ) name?8. Mike and Tom __________ ( be ) friends. 9. Thanks for helping ________( I ). 10. ______(Ann安)mother is ______(we) teacher. 物主代词： 形容词性物主代词(my/your/his/her/its/our/their)+名词 而名词性物主代词(mine/yours/his/hers/its/ours/theirs则相单于形容词性物主代词+名词,故其后不必加名词。如： Is this your book No, it isn’t，it’s hers(her book) ，Jim’s ，Tom’s，Maria’s 1.补全对话 ----Whose bike is it Is it______(your/yours) ----No, it’s not______.(my/mine) _______is red. But this bike is blue . ----Is it Jane’s ----Sorry, I don’t know. Maybe it’s_______(her/hers). ----Jane,is this______bike (youryours)
数词（Numerals） 数词分为基数词和序数词两种 一、基数词 1）基数词的构成及读法 ①ù 1-12的构成为独立单词 ②ú 13-19的构成都以后缀-teen结尾，但thirteen，fifteen，eighteen为不规则变化 ③? 20-90的构成都以后缀-ty结尾，但twenty，thirty，forty，eighty为不规则变化 ④ü 21-99的构成是在十位数和个位数之间加连字符- e.g. 25 twenty-five ⑤Y 三位数101-999的构成要注意百位数和十位数（个位数）之间用and连接。 e.g.901 nine hundred and one ⑥T英语中没有“万”这个单位，1000以上而不到100万的数词都用thousand表示 ⑦?百万1，000，000 ：one(a) million ⑧à千万10，000，000 ：ten million ⑨á亿100，000，000 ：one(a) hundred million ⑩a十亿1,000,000,000 ：one(a) thousand million（等于美国英语a billion） 注：英语数字中，只有hundred后才加and 2）基数词的复数形式 ①ù Hundred，thousand，million和billion在表示具体数目时，不用复数形式，但在一些习惯表达中，相当于普通名词，可有复数形式 e.g. thousands of years ago ②ú数词复数形式还可以表示不十分精确的年龄、年代和其他表达方式 e.g. He died in his fifties. 3.基数词的作用 ①ù作主语 e.g. Two of the girls are from California.姑娘中有两个来自加州。 ②ú作表语 e.g. He is a little over five.他才五岁多一点。 ③?作宾语 e.g. Give me two.给我两个。 ④ü作定语 e.g. The river is about eighty miles long.这条河大约八十英尺长。 ⑤Y作同位语 e.g. You two take these seats.你们两个坐这里。 二、序数词 1）序数词的构成 ①序数词多数由“基数词-th”构成，序数词前一般加定冠词the ②ú少数序数词构成属特殊情况 e.g. One-first two-second three-third five-fifth eight-eighth nine-ninth twelve-twelfth ③?以y结尾的十位整数，先将y改为i，再加-eth e.g. thirty-thirtieth ④ü21以上的多位数，要将末位数改为序数词，前面其他位数仍用基数词 e.g. eighty-three—eighty-third nine hundred and sixty-two—nine hundred and sixty-second ⑤Y序数词的缩写形式由阿拉伯数字加序数词的后两个字母构成 e.g. first—1st second—2nd 2）序数词的用法 ①ù作主语 e.g. The third of the month was a holiday. ②ú作表语 e.g. Who was the third? ③?作定语 e.g. We live on the fifth floor. ④ü作宾语 e.g. I was among the first to learn of this. ⑤Y作同位语 e.g. Who is that man, the first in the front row? ⑥T作状语 e.g. When did you first meet him? 注：有时序数词并不指顺序，而是表示“再一，又一”的意思。此时序数词前要加不定冠词 e.g. I want to make a second try.
人教版英语英语数词专项练习含答案解析 一、初中英语数词 1．We are proud of our country. The year 2019 is her ____ birthday. A. seventy B. the seventy C. the seventieth D. seventieth 【答案】 D 【解析】【分析】句意：我们为我们的国家感到骄傲。2019年是她的70岁诞辰。表示几岁的生日，要用序数词，因此排除A、B；又因前面有物主代词her，因此不用加定冠词，故选D。 【点评】考查序数词的基本用法。 2．The number of the students in our school is about four __________. _______ of them are girls. A. thousand; Two thirds B. thousands; Two third C. thousands; Two thirds D. thousand; Two third 【答案】 A 【解析】【分析】句意：我们学校的学生人数大约是四人。三分之二是女孩。four基数词后用thousand的原形，分数表达形式是分子是基数词，分母是序数词，分子大于一，分母用复数形式，故三分之二是two thirds，故选A。 【点评】考查数词，注意分数的用法。 3．—____________of volunteers will be needed for the 2020 Olympic Games. —Let's go and____________ them. A.Thousands, join B.Thousand, be a member of C.Three thousand, take part in D.Thousands, be in 【答案】A 【解析】【分析】句意：——2020年奥运会将需要几千名志愿者。——让我们去加入他们吧。thousands of，几千，join sb，加入，和某人一起，故选A。 【点评】考查数词，注意join sb的用法。 4．In the Ukraine（乌克兰）, a ________ of the population are Russia speakers. A. five B. fiveth C. fifth D. fifty 【答案】 C 【解析】【分析】句意：在乌克兰，五分之一的人口是俄罗斯人。此处考查分数的表达方
英语数词用法归纳 一、定义与分类 数词是指表示数目多少或顺序先后的词。表示数目多少的数词叫基数词，如one, five, ten, thirty, sixty-five 等；表示顺序先后的数词叫序数词，如first, sixth, tenth, twenty-first 等。数词用法相当于名词和形容词，在句中可用作主语、宾语、表语、定语、同位语等。 二、基数词 1. 英语中没有“万”这个读数单位，要表示汉语中的“万”，英语需借用thousand一词，如“一万”用“十个千”表示(ten thousand)，“十万”用“一百个千”表示(one hundred thousand)。 2. 用作基数词单位的hundred, thousand, million, billion 通常不带复数词尾-s，但若用于表示数百、数千、数百万这样的泛指，则用复数。如： About two thousand people died in the earthquake. 大约有两千人在地震中丧生。 Thousands of people go to the seaside every year. 每年成千上万的人到海滨去。 3. 表示整十的基数词用复数形式可以表示人的大约岁数或年代。如： He is in his early twenties. 他才二十出头 This took place in the 1930s. 这事发生在20世纪30年代。 三、序数词 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 (the) 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(from https://www.doczj.com/doc/114635037.html,)。 序数词前用定冠词和不定冠词的区别在于：定冠词表特指，不定冠词表泛指，有类似another的意思，但比another 的意思更明确。 四、分数、倍数、小数和百分数 1. 分数。分数由基数词和序数词构成：分子用基数词，分母用序数词，当分子超过“1”时，分母用复数。如：two thirds=2/3 three fifths=3/5 注：1/2 通常读作a [one] half，一般不读作a second；1/4 可读作a [one] fourth，也可读作a [one] quarter。 2. 倍数。英语中表示倍数时通常借助half, double, twice, three times等之类的词。如： They're twice the size of chickens. 它们比鸡大一倍。 Their house is about three times as big as ours. 他们的房子大约有我们房子三倍大。 3. 百分数。百分数由基数词和百分号(%)组成，百分号(%)读作per cent。如： thirty percent=30% 60 percent=60%
英语 ------ 数词 ▲掌握分数、时间、日期的表达法。 【复习要点 （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 one11 eleven100 a hundred 2 two12 twelve20 twenty1000 a thousand 3 three13 thirteen30 thirty1， 000， 000 a million 4 four14 fourteen40 forty10， 000，000 ten million 5 five15 fifteen50 fifty100， 000，000 a hundred million 6 six16 sixteen60 sixty1， 000， 000， 000 a billion 7 seven17 seventeen70 seventy 8 eight18 eighteen80 eighty 9 nine19 nineteen90 ninety 10 ten 说明： 1． 13— 19 是由个位数加后缀-teen 构成。注意其中13、 15 的拼写是 thirteen 和 fifteen 。2． 20— 90 由个位数加后缀-ty 构成，注意其中20— 50 的拼写分别是twenty, thirty, forty 和fifty;80 的拼写是eighty 。 3 ．其它非整十的两位数21— 99是由整十位数加连字符“-”，再加个位数构成。如：81 eighty-one 。 4．101— 999 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 。 5． 1000 以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 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）来 表达，其换算关系为： 1 万 =10 thousand;1 亿 =100 million; 10亿=a thousand million=a billion。6．多位数的读法： 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），第二个间隔或逗号前是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： eight hundred and eighty-eight million 。 基数词的用法： 1.基数词在句中的作用 基数词的作用相当于名词和形容词，在句中可作定语、主语、宾语（介宾）、表语、同
初中英语语法-数词及练习 一、内容概述 表示数目和顺序的词叫数词。数词可分为基数词和序数词两类 二、重点知识归纳及讲解 (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 one11 eleven100 a hundred 2 two12 twelve20 twenty 1000 a thousand 3 three13 thirteen 30 thirty 1，000，000 a million 4 four14 fourteen 40 forty10，000，000 ten million 5 five15 fifteen50 fifty100，000，000 a hundred million 6 six16 sixteen60 sixty1，000，000，000 a billion 7 seven17 seventeen70 seventy 8 eight18 eighteen80 eighty
9 nine19 nineteen90 ninety 10 ten 说明： 1．13—19是由个位数加后缀-teen构成。注意其中13、15的拼写是thirteen和fifteen。 2．20—90由个位数加后缀-ty构成，注意其中20—50的拼写分别是twenty, thirty, forty 和fifty;80的拼写是eighty。 3．其它非整十的两位数21—99是由整十位数加连字符“-”，再加个位数构成。如： 81 eighty-one。4．101—999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。5．1000以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 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）来表达，其换算关系为：1万=10 thousand;1亿=100 million; 10亿=a thousand million=a billion。 7．多位数的读法： 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
数词的用法 【真题再现】 1. About of the students like keeping diaries in English in our class. A. two fifth B. two fifths C. second five D. two five 2. David Beckham has ______ children. Brooklyn Beckham is his ______ son.) A. third, first, B. three, one C. three, first D. third, one 3. It's never too old to learn. Karl Marx began to learn English in his ______. A. the fiftieth B. fiftieth C. fifty D. fifties 4. In his ________，Wilson returned to his hometown and began to teach. A. thirty B. thirties C. thirtieth 5. ______ month of the year is May. A. Two B. The second C. Five D. The fifth 6. I live in Room 403, Sam lives in the room right above mine, on the _______ floor． A．third B．three C．fifth D．five 7. Basketball is so exciting that _______ people play it for fun. A. million B. two millions C. million of D. millions of 8. Boys and girls, please turn to Page _______ and look at the _______ picture. A．Fifth; five B．Five; five C．Fifth; fifth D．Five; fifth 9. Helen loves reading. She has read _______ books this month. A. five B. fifth C. five of D. fifth of 10．It’s my ________ time to come to the bookstore this month because most of the books in it are my favorite. A．forth B．four C．fourth 11.The ________ biggest earthquakes in Nepal (尼泊尔) have killed more than 8,000 people. A．two B．second C．twice 12. We are going on holiday in the _______ week of July． A. two B. twice C. second 13. _______ of the land in that district is covered with trees and grass. A. Fifth two B. Two fifth C. Fifth second D. Two fifths 【答案与解析】 1. B。句意：我们班大约有五分之二的同学喜欢写英语日记。分数是由基数词和序数词一起来表示的。基数词作分子，序数词作分母，除了分子是“1”以外，其它情况下序数词都要用复数形式。 2. C。句意：大卫·贝克汉姆有三个孩子，布鲁克林·贝克汉姆是他的第一个孩子。基数词表示名词的数目的多少。序数词表示事物的顺序。根据句意，可知选C。 3. D。句意：活到老，学到老。Karl Marx在他五十多岁的时候开始学英语。“in one's ＋逢十数字的复数形式”表示“在某人……岁时”。例如：in her thirties在她三十多岁时。故D项正确。 4. B。本句意为：在他三十多岁时，威尔逊回到家乡，开始教学。in one's thirties在某人三十多岁时；故答案选B。 5. D。基数词表示数量的多少，序数词表示顺序，此处明显选择序数词，第五个月是May.
英语数词技巧和方法完整版及练习题含解析 一、初中英语数词 1． of the land in that district covered with trees and grass. A. Two fifths; is B. Two fifth; are C. Two fifth; is D. Two fifths; are 【答案】 A 【解析】【分析】句意：在那片区域五分之二的土地被树和草覆盖着。分数由基数词和序数词构成，分子用基数词，分母用序数词，分子大于1时，分母用复数，所以五分之二的表达为two fifths。且land 作为集体名词是不可数名词，谓语应用单数形式，所以用is，故选A。 【点评】考查分数的表达和be动词用法。注意分数的表达，分数由基数词和序数词构成，分子用基数词，分母用序数词，分子大于1时，分母用复数。 2．—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 【答案】 B 【解析】【分析】句意：——你的女儿多大了？——九岁，昨天我们给她过了一个特殊的九岁的生日聚会。第一空说明年龄，应使用基数词，第二空说明的是第几个生日，使用序数词，故答案是B。 【点评】考查数词，注意基数词和序数词的用法。 3．My family lives on ________________ floor of the building. A. twelve B. the twelfth C. twelfth D. the twelve 【答案】 B 【解析】【分析】句意：我家住在这栋楼的第20层。表示第几层，用the+序数词+floor，固定搭配，twelve，12，基数词；twelfth，第12，序数词，故选B。 【点评】考查序数词用法，注意平时识记the+序数词+floor。 4．There are ______________ months in a year. December is the ______________ month of a year. A. twelve; twelve B. twelfth; twelfth C. twelve; twelfth D. twelfth; twelve 【答案】 C 【解析】【分析】句意：一年有十二个月，十二月是一年中的第十二个月。根据基数词表示数量以及months是名词复数可知，第一个空应填基数词twelve；根据序数词表示顺序以及month是名词单数可知，第二个空应用序数词twelfth。故选C。 【点评】考查基数词及序数词的基本含义及用法。注意twelfth的书写。 5．— Is Dongjin High-speed Railway Station the largest in Hubei Province? — Yes, of course. It's just a little smaller than the largest one in Wuhan.