初中英語(yǔ)_數(shù)詞詳解及專項(xiàng)練習(xí).doc

基數(shù)詞&序數(shù)詞一、基數(shù)詞1. 1-10 （ one, two, three, four, five, six, seven, eight, nine, ten）2. 11-19 (eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen)3. 兩位數(shù)（非整數(shù)），十位數(shù)和個(gè)位數(shù)之間用連字符“-”。 （ 21 twenty-one； 76 seventy-six）4. 兩位數(shù)（整數(shù)），以ty結(jié)尾； （40 forty； 90 ninety）4. 三位數(shù)，在百位數(shù)和十位數(shù)之間用and連接。 101 a hundred and one； 320 three hundred and twenty； 648 six hundred and forty-eight5. 百（hundred），千（thousand），百萬（million），千萬（billion）6. 表示確切的百、千、百萬時(shí)，不能用其復(fù)數(shù)形式； ( 400 four hundred，hundred不加s) 表示成百、成千時(shí)，用其復(fù)數(shù)形式；( 成百 hundreds of; 成千 thousands of )7. 表示“人的不確切歲數(shù)”，用幾十的復(fù)數(shù)形式； He became a professor in his thirties. （他在三十多歲成為教授。）8. 表示年代時(shí)，用幾十的復(fù)數(shù)形式； It was in 1960s. （那是在20世紀(jì)60年代。）二、序數(shù)詞1、英語(yǔ)的序數(shù)詞基本變法：(1) 1-19：一般在基數(shù)詞后加th 特殊情況：one-first ; two-second; three-third; eight-eighth; nine-ninth; -ve結(jié)尾的改ve為f加th；（如five-fifth； twelve-twelfth） (2)兩位數(shù)（整數(shù)），改y為-ie，加th； (如twenty-twentieth； thirty-thirtieth) （3）兩位數(shù)/多位數(shù)（非整數(shù)），僅個(gè)位數(shù)部分用序數(shù)詞。 （如：thirty-sixth, fifty-third, one hundred and twenty-first）2.縮寫形式：阿拉伯?dāng)?shù)字 + 序數(shù)詞末尾兩個(gè)字母 （只有1st, 2nd, 3rd為特殊形式，其他都是阿拉伯?dāng)?shù)字+ th） first -1st； second-2nd; twentieth -20th; twenty-third -23rd三、基數(shù)詞/序數(shù)詞用法辨別1. 基數(shù)詞也可以表示順序，要將基數(shù)詞放在名詞之后。 the first Lesson - Lesson One / the fifth page - Page 52. (1)序數(shù)詞前面加the時(shí),表示順序,This is the fourth time I come here. 這是我第四次來這兒。 (2) 加a/an時(shí)表示“再一、又一”Weve tried it three times. Must we try it a fourth time? 我們已經(jīng)試過三遍了，還必須再試一次（第四次）嗎？四、時(shí)間的數(shù)詞表示法1. 表示時(shí)刻（1）整點(diǎn)用“ oclock ”； （5: 00讀作five oclock或five） （2）幾點(diǎn)過幾分，分鐘 + past + 小時(shí)； （five past seven 七點(diǎn)過五分； a quarter past eight八點(diǎn)過一刻； half past eight八點(diǎn)半）（3） 幾點(diǎn)差幾分，分鐘 + to + 小時(shí)； （ten to eight八點(diǎn)差十分； a quarter to twelve 十二點(diǎn)差一刻）（4） 直接法：小時(shí) + 分鐘； （6: 31讀作six thirty-one； 10:26 ten twenty-six）2. 表示日期，用the 加序數(shù)詞表示，或用縮寫形式 12月1日: Dec.1st或the first of December；2002年11月8日: Nov. 8th, 2002.3. 表示年份，用基數(shù)詞表示 2002讀作twenty thousand and two； 1976讀作 nineteen seventy-six4. 表示年代，用the + 年代 + s/ s 在20世紀(jì)30年代： in the 1930s 或 in the 1930s5. 表示世紀(jì)，用the + 序數(shù)詞 + century，或者 the + 整百 + s/s 20世紀(jì)： the 20th century 或 the 1900s/ the 1900s 五、分?jǐn)?shù)/小數(shù)/百分?jǐn)?shù)表示法1、分?jǐn)?shù)表示法：基數(shù)詞作分子，序數(shù)詞作分母； 分子是“1”時(shí)，序數(shù)詞用單數(shù)；除此之外，序數(shù)詞用復(fù)數(shù) 1/3：one third / a third； 1/2：a half； 1/4：one quarter ； 3/4：three fourths/ three quarters ； 1：one and a half2. “半”的表達(dá)： 一半-a half； 半小時(shí)half an hour； 1.5小時(shí)one and a half hours或one hour and a half. 3. 當(dāng)分?jǐn)?shù)后接名詞時(shí)，如果分?jǐn)?shù)值大于1，名詞用復(fù)數(shù)；小于1，名詞用單數(shù)。 one and a half hours一個(gè)半小時(shí)； two and three fourths meters 2.75米3） 小數(shù)：小數(shù)點(diǎn)左邊合起來讀，小數(shù)點(diǎn)右邊的數(shù)字分開讀，小數(shù)點(diǎn)讀作point 10.25 -ten point two five / 1.03-one point o three4） 10.25 -ten point two five / 1.03-one point o three4） 百分?jǐn)?shù)：用基數(shù)詞+ percent表示 50%-fifty percent； 3% - three percent 專項(xiàng)練習(xí)題1. Excuse me, how does this number 20,135 read? It reads_. A. twenty thousands one hundred and thirty-five. C. twenty thousand one hundred and thirty five. B. twenty thousand one hundred and thirty-five. D. twenty thousands, one hundred and thirty-five. 2. Each year, _ fished are killed by the polluted water and many people are made sick by the polluted air. A. millions of B. million of C. two millions of D. two millions3. During the seven-day May Day holiday _ families went sightseeing. A. thousand B. thousands C. thousands and thousands D. thousands of4. The building has _ floors. They live on the _ floor. A. ninth, last B. nine, nine C. nine, ninth D. nine , tenth5. The beautiful skirts are on show in the shop. Jane likes _. A. the ninth B. the nineth C. nine D. ninth6. December is the _ month of the year. A. twelve B. twelveth C. twelvitth D. twelfth7. I think that the _ century(世紀(jì)) will bring us more hopes. A. twenty-one B. twentiety-first C. twenty-first D. twentieth-one8. Now let me have _. A. the third try B. a third try C. third try D. this third try9. My sister is a student of _. A. the First Class B. Class One C. One Class D. Class First10. Shakespeare was born in _. A. 1660sB. 1660sC. The 1660D. The 1660s11. He became a super star _. A. In his thirtyB. In his thirtiesC. At his thirtyD. At his thirties12. _ of the students play QQ farm games on the Internet. A. 70 percent ofB. 70 percentC. 70 percent ofD. 70 percents13. The Olympic Games are held _. A. Every four yearsB. Every four yearC. Every fourth years D.Every four-years14. Nowadays _ of business letters are written in English. A. Two third B. Two thirdsC. Two threeD. Second three綜合練習(xí)一、單項(xiàng)選擇題1. The government of Chongqing is building _ cheap and good houses for the people. A. ThousandB. ThousandsC. Thousand ofD. Thousands of2. The teacher said that _ of the boys would take part in the talent show.A. Three fiveB. Three fivesC. Thirds fifthsD. Three fifths 4. I got a beautiful bike on _ birthday. I like it very much. A. FifteenthB. FifteenC. My fifteenD. My fifteenth 5. This is Mr. Whites _ visit to Beijing. He has been there twice before. A. TwoB. SecondC. ThreeD. Third 6. Now, everybody, please turn to Page _ and look at the _ picture. A. Fifth; fiveB. Five; fifthC. Fifth; fifthD. Five; five 7. _ people went to the concert which was held in Peoples Square _ the night of May Day. A. Thousand of; inB. Thousand; onC. Many thousand; inD. Thousands of; on 8. I think _ of the materials I listened to at the very beginning of the exam _easy. A. Three fourths; isB. Third four; areC. Three fourth; areD. Three fourth; are 9. About _ of the workers in the factory were born in the _. A. Two-thirds; 1970B. Two-thirds; 1970s C. Two-third; 1970D. Two-third; 1970s 10. -Bob, can you write the number seven hundred and eighty thousand and thirty-two? - Yes. It is _. A. 78032 B. 7832 C. 7032 D. 780032 11. Nine _ pounds a week? A. hundred of B. hundreds of C. hundreds D. Hundred 12. The _ month of the year is February.A. one B. first C. two D. Second13. -Come and see me in _. -With pleasure. Thats what Im expecting. A. Two or three daysB. Two or three days time C. Two or three days time二、閱讀理解 Some people have a very poor sense of direction. Unlucky , I am one of them. I have visited a place many times but I may still get lost there the next time. When I was a little girl, I never dared ask strangers the way. And so I used to walk round in circle and hope that by chance I would get to the place I was going to. Now , I am no longer too shy to ask people for directions, but I often receive helpless or even wrong information. So I try to avoid giving people wrong directions. If anyone asks me the way somewhere, I would say,sorry, I am a stranger here. Once on my way to work I was stopped by a man. He asked me if I could tell him the way to the Friendship Building. I gave him my usual reply. But just as I walked on only a few steps. I realized that he had asked the way to my office building. However, I had no time to turn back and look for him. I was rushing to meet with someone at my office and I didnt want to keep him waiting. When I just got to my office, the secretary showed in the man who had asked me for directions. Imagine how embarrassed I was and how surprised he was when we saw each other at the first sight!1. The writer always refuses to give people directions because . A.shes a strange to the city B.she doesnt know the people C.she has no time to help others D.shes afraid of giving wrong directions.2. A man stopped the writer on the way to . A.sell her something B.ask for the time C.make friends with her D.ask for the directions.3. The Friendship Building is the place where the writer . A. lives B.studies C.works D.teaches4. The word embarrassed in the last paragraph means .A. 尷尬 B.困惑 C.激動(dòng) D.拮據(jù)5. Which of the following is TRUE according to the passage?A. The writer is tooshy to give others directions B. The writer has a very poor sense of directionsC. The writer never got lost when she was young.D. The man was quite nervous when he saw the writer.三、完型填空 Many parents want their children to be famous one day. But do children have the same_ 1_?A new_ 2_Hi, Keai is on at Beijing Childrens Art Theatre. It tells the story of a boy called Keai. His parents would like him to become a painter or a _ 3_ one day. They teach him to _4_and to play the violin, but Keai doesnt enjoy these activities. Then one day Keais parents see Liu Xiang