牛津上海版八年级第一学期8A数词专题专项讲解及练习教案

数词专题Ⅰ.数词英语的数词可分为基数词和序数词两大类。

基数词表示的是人或事物的个数，而序数词表示的是这些数目的顺序。

一、基数词1. 表示数目的词称为基数词，下面是最常用的基数词2. 在21-99之间的非整十位数的基数词要在十位和个位之间加连字符“-”23：twenty-three3. 三位数的基数词要在百位和十位（若无十位则和各位）之间加and。

364：three hundred and sixty-four 906: nine hundred and six4.1,000以上的数字，从后向前，每三位加一个逗号“，”依次为thousand, million, billion,然后每一小段按百位、十位、各位的顺序依次表示。

478，650，542：four hundred and seventy-eight million, six hundred and fifty thousand ,five hundred and forty-two.5. hundred ,thousand ,million 等词前有具体数词修饰时，要用单数。

后面与of 短语连用时，则要用复数。

且前面不再加具体数目，但可用several 等词修饰。

five thousand students 五千名学生two million people两百万人undreds of people 成百上千的人several thousands of visitors 上千的旅客6. 表达“几个半”用“基数词+and+a half+名词”或“基数词+名词+and +a half”。

Two and a half months/two months and a half两个半月7. 表示“几十年代”或“几十岁”。

in the 1870s(1870's)在19世纪70年代in her twenties 在她二十多岁时8. “基数词+名词”作定语时，两者间要加连字符号，名词用单数形式。

a three-week holiday3周的假期9. 门牌号、电话号码及邮政编码等用基数词。

My phone number is 3980665.我的电话号码是3980665。

（读作three nine eight zero six six/double six five.)【课堂小练】Ⅰ. Choose the best answer.1. and makes eighty.A. Twenty; fortyB. Thirty; fiftyC. Thirty; twentyD. Forty; fifty2. The road is over metres long.A. six hundred and fifty-two C. six hundred, fifty-twoB. six hundreds and fifty-two D. six hundred, fifty and two3. Three the students went to the zoo yesterday. They had a good time in the zoo.A. hundredB. hundred ofC. hundreds ofD. hundreds4. 200,918,765 can be read in English .A. two hundred million nine hundred and eighteen thousand seven hundred and sixty-fiveB. two hundred nine hundred and tighten thousand seven hundred and sixty-fiveC. two hundred million nine hundred eighteen thousand seven hundred sixty-fiveD. two hundred million nine hundred and eighteen thousand seven hundred sixty-five5. girls tool part in the Super Girl competition but only a few of them succeed.A. One million C. Millions ofB. Thousands and millions D. Two million6. He said he would stay in Beijing for .A. two and half months C. two months and a halfB. two and a half month D. two months and half7. I went to college in and began to work in .A. the 1980s; twentyB. the 1980’s; my twentiesC. 1980; my twentyD. 1980s; my twentieth8. The brave young man is going to swim across a channel.A. 80-metre-wideB. 80-metres-wideC. 80 metre wideD. 80 metres’ wide9. The table is wide.A. one and one half feet C. one and half a footB. one and one half foot D. one and a half feet10. The Sutong Highway Bridge, a bridge, is already open to traffic.A. 32 kilometre long C. 32 kilometres longB. 32-kilometre-long D. 32-kilometres-long二、序数词1. 序数词的构成。

巧学妙记：基变序，有规律，末尾加上-th (sixth, seventeenth);一二三特殊记，词尾字母t,d,d(first,second,third);八省t来九去,f 替ve(eighth, ninth, fifth,twelfth); 结尾是y变ie,词尾再加-th(fortieth);若遇多位数词，只让各位变成序（twenty-first)。

2.序数词前一般要用定冠词the.This is the second longest river here.这是这里的第二长河。

He is always the first student to come to school.他总是第一个到校的学生。

3. 序数词的意义为“又一，再一”时，其前要加冠词a/an，不用the.A:I've tried twice.我已经试了两次了。

B：You'd better try a third time.你最好再试一次。

4. 序数词前有形容词性物主代词等限定词时，不用冠词。

Liu Zhong is in his third year at No.1Middle School.刘钟在一中读三年级。

China exploded its first atom bomb in October, 1964.1964年10月中国第一颗原子弹爆炸。

5. 序数词与名词构成复合形容词时，其前不加定冠词。

He bought a second-hand car.他买了一辆二手车。

6. 在某些固定搭配中，序数词前不用冠词。

at first 起初every third day 每隔3天first of all 首先win first place 获得冠军7. 日期一般用序数词表示。

2月20日February 20th (=February the twentieth) 5月1日May 1st(=May the first)8. 分数的表达法。

分子用基数词，分母用序数词，分子大于1时，分母用复数。

1/6：one sixth 3/4: three fourths(=three quarters)9. 编号可用基数词或序数词表示。

基数词位于名词后，序数词位于名词前，并加定冠词the。

6路公共汽车：But NO.6/the No.6 Bus 第8单元：Unit Eight/the Eighth Unit第一章：Chapter One /the First Chapter 第2部分：Section Two/the Second Section【课堂小练】Ⅰ. Choose the best answer.1. Qinghai-Tibet Railway is the railway that connects Tibet with the other parts ofChina.A. secondB. firstC. thirdD. four2. Zhongshan Road is road in our city.A. the two widestB. a second widestC. the second widestD. the second wide3. Although I failed four times, my father encouraged me to have fifth try.A. /B. theC. anD. a4. He has every day off.A. threeB. thirdC. threesD. threeth5. A: How old is your daughter?B: . We had a special party for her birthday last week.A. Ninth; ninthB. Nine; nineC. Ninth; nineD. Nine; ninth6. We have sixty students in our class. of them are girls.A. Two thirdB. Two threeC. Second thirdD. Two thirds7. Now Children, please turn to page and look at the picture.A. twenty-three; fifth C. twenty-third; fifthB. twenty-three; five D. twenty-third; five8. A: Shanghai has opened its TV channel that sends programs in foreign languages. B: Great! I can improve my English over it.A. firstB. a firstC. the firstD. an first9. It was the time for China to send a manned spaceship into the sky, but it was thetime for Fei Junlong and Nie Haisheng to go to the space.A. first; firstB. second; firstC. second; secondD. first; second10. A: It’s 8:15 now.B: Yes, it’s now.A. eight fiftyB. fifteen to eightC. fifteen past eightD. forty-five to nine 课堂练习Ⅰ. Choose the best answer (选择)1. About films were shown during the 5th International Film Festival.A. two hundred ofB. two hundreds ofC. two hundredD. two hundreds2. We’ll have a holiday. What about going to the West Lake?A. two daysB. two-dayC. two-daysD. two-days’3. Now children, turn to page and look at picture in Lesson Two.A .twentieth…one B. twenty…one C. twentieth…the first D. twenty…the first4. During the seven-day May Day holidays, families went sightseeing.A. thousandB. thousandsC. thousands and thousandsD. thousands of5. I’ve read sports news about the F1 race today.A. twoB. piecesC. two piecesD. two pieces of6. During World War ii, a Jewish(犹太的) lady was protected by a local family in Shanghai in her .A. fiftiesB. fiftyC. fiftiethD. the fiftieth7. — How many typewriters do you need?—I need________.A. three onesB. threeC. the threeD. them three8. About_________ said that they enjoyed those books very much.A. four fifths studentsB. four fifth of the studentsC. four fifths of studentsD. four fifths of the students9. — How much does the parcel weigh?— Just a minute. I'll weigh it. It weighs________.A. one and half a kilogramB. one and a half kilogramC. one kilogram and halfD. one kilogram and a half10. — How soon will you finish typing the letter?—______.A. one or two minuteB. one minute or twoC. a minute or twoD. a or two minutes11.We'll spend the summer holidays in the mountain_______ miles away.A. several hundredsB. hundreds ofC. several hundred ofD. hundred of12. — He must be________.—Yes, he's still strong like a young man.A. in his sixtiesB. in his sixtyC. over sixtiesD. sixty-year-old13. As _______customer of the supermarket, Mr. Li was given a nice present.A. a thousandB. the thousandthC. the thousandsD. thousandth14. Three students of our class have been chosen the top students of the year. And I am one of .A. threeB. the threeC. thirdD. the third15. —Have you found the six coins you lost yesterday?— I have found _______ , but I can't find .A.five, the sixthB. five, sixC. fifths, sixD. fifth, sixth16. Next Sunday will be Jane's _______.birthday.A. thirty-ninthB. thirtieth-ninthC. thirtieth-nineD. thirty-nine17. We'll have to enter the stadium at .A. the Gate FourB. Gate FourC. Fourth GateD. Gate Fourth18. My _________daughter likes to ask questions about anything she sees.A. six-years-oldB. six years oldC. six-year-oldD. six-year old19. —What's on ?— Sorry, I don't know. Why not look it up in TV Guide?A. Channel 20B. 20 ChannelC. Channel 20thD. 20th Channel20. The Yellow River is longest river in China.A. twoB. the twoC. the secondD. secondⅡ. C omplete the sentences with the given words in their proper forms.1. Mum made a big chocolate cake for little Kevin’s birthday. (six)2. We still need more chairs for the meeting room. (ninth).3. Eric, the son of the family, has a special interest in physics. (five)4. Alex is years old and is taken care of in the kindergarten. (fourth)5. The young lady teaches my son to play the piano a week. (two)6. During World war II, a Jewish (犹太的）lady was protected by a local family in Shanghai in her . (fifty)7. We saw several people gather in the streets. (hundred)8. Although of the earth is covered with water, still we shouldn’t waste any of it. (second three)9. Many guests were invited to my mother’s birthday party last Sunday. She really hada wonderful time. (forty)10. of people come to the Bund to enjoy the night views on our National Day. (Thousand)11. It’s unforgettable to celebrate our ___________ birthday in Liuhe. (fourteen)12. The woman next door took up the piano-playing in her ________. (sixty)13. The automobile industry played an important role in America throughout the __________ century. (twenty)14. The students usually have a mid-exam in the __________ week of the term. (ten)15. Mrs. Brown has bought a new flat in this building and it’s on the ________ floor.（eight）16. The ____________ Olympic Games were held in London in 2012. (thirty)17. The boy was the___________one to get to the school playground. (four)课后作业A. Choose the best answer.On a Friday night, a poor young artist stood at the gate of the New York railway station, playing his violin. The music was so great that many people stopped to put some money into the hat of the young man.The next day, the young artist came to the same place, and put his hat on the ground gracefully. Different from the day before, he took out a large piece of paper and laid it under his hat. Then he began to play the violin. It sounded more pleasant than ever.Soon he was surrounded by people who were attracted by the words on that paper. It said, "Last night, a gentleman named George Sang put an important thing into my hat by mistake. Please come to claim it soon. "After about half an hour, a middle-aged man rushed through the crowd to the violinist and said, "Yes, it's you. I knew that you were an honest man and would certainly come here." The young violinist asked calmly, "Are you Mr George Sang?" The man nodded. The violinist asked, "Did you lose something?" "It's a lottery ticket," said the man. The violinist took out a lottery ticket on which George Sang's name was seen. "Is it?" he asked. George nodded and took the lottery ticket and kissed it, then danced with the violinist.The violinist was a student at an arts college and had planned to attend advanced studies in Vienna. Later his classmate asked the violinist, "At that time you needed money to pay the tuition and you had to play the violin in the railway station every day to make money. Why didn't you keep the lottery ticket for yourself?"The violinist said, "Although I don't have much money, I live happily. But if I lose honesty I won't be happy forever." Through our lives, we can gain a lot and lose so much. But being honest should always be with us.生词：gracefully 优美地，斯文地claim 认领( ) 1. The first paragraph tells us __________.A.the young artist waited for the train to ViennaB.the young artist played the violin to make some moneyC.the young artist came to buy a train ticket to ViennaD.the young artist walked around the New York railway station( ) 2. From the second paragraph we know __________.A.he came to another place the next dayB.he played the violin better the next dayC.he sat on a large piece of paper and played the violinD.he laid a large piece of paper under his hat( ) 3. The third paragraph mainly talks about __________.A.he asked a gentleman named George Sang to claim his hatB.he asked a gentleman named George Sang to claim his important thingC.he was a lottery ticket and he needed to find the ownerD.he was a lottery ticket and he wanted to give it to George Sang ( ) 4. The fourth paragraphs mainly tells __________.A.he thought the lottery ticket was worth nothingB.he didn't give the lottery ticket to George SangC.he didn't take the lottery ticket for himselfD.George Sang kissed the young artist and danced with him( ) 5. From the last paragraph we know __________.A.we should share with others if we find something valuableB.we should know the importance of honesty and lead a happy lifeC.keep the lottery if you find oneD.playing the violin could make you feel happyB. Fill in the blanks with proper words.Girls want to look their very best at all times, especially when they show up in particular occasions. They don't want to spend hours making themselves up in front of the m 1 , but still want to look like a movie star—as if they were born that way.It seems that everyone has a different hairstyle. The a 2 of long hair are that it can be changed into so many different styles. You can wear your hair up in many k 3 of ways. Short hair is so healthy. Your short hairs often use less shampoo, and depending on your style, you look younger and neater all the time—no matter what you are wearing. Short hair looks cleaner and fresher and it doesn't hide most of your features.I think long hairs are crucial for a girl, and I usually prefer long hair for girls, though harder to deal with, it gives them a more feminine look and makes them more good-looking. I am a 4 by girls with the silky long hair... so fascinating. However, they must know how to make their hair suitable for different occasions. Long hair always has the classical nice style, but that doesn't m 5 short hair is at a disadvantage. It really depends on the person's shapes of faces and body. It doesn't really matter, as long as they look good. Many girls with short hair look like kind of boys and they are considered independent and s 6 . But some girls with short hair do look extremely good as well. If a girl can look good in both, then she's t 7 beautiful.生词：occasion 场合neat 整洁的feminine 女性化的classical 传统的independent 独立的Keys:基数词【课堂小练】1-5 BABAC 6-10 CBADB序数词【课堂小练】1-5 BCDBD 6-10 DAABC【课堂练习】Ⅰ1-5 CBDDD 6-10 A BDDC 11-15 BABBA 16-20 ABCACⅡ1. sixth 2. nine 3. third 4. four 5. twice 6. fifties7. hundred8. two-thirds9. fortieth1.Thousands 11. fourteenth 12. sixties 13.twentieth 14.tenth 15. eighth 16. thirtieth17.Fourth【课后作业】A: BDBCBB:mirror advantages kinds attracted mean strong truly。