1、精選優質文檔-傾情為你奉上數詞中考解讀內容基本要求數詞的基本用法一基數詞與序數詞的構成及用法 二分數、時間、日期的表達法 一、基數詞基數詞用來表示數目，或者說表示數量的詞叫基數詞。1最基本的基數詞如下表表示。1 one 11 eleven100 a hundred 2 two 12 twelve20 twenty1000 a thousand3 three 13 thirteen 30 thirty 1,000,000 1 million4 four 14 fourteen 40 forty10,000,000 ten million5 five15 fifteen 50 fifty100,0

2、00,000 a hundred million6 six 16 sixteen60 sixty1,000,000,000 a billion7 seven 17 seventeen70 seventy8 eight18 eighteen80 eighty9 nine19 nineteen90 ninety10 ten【注】：1) 基數詞1-12是獨立單詞，需逐個記憶。1319 是由個位數加后綴-teen構成。注意其中13、15、18的拼寫是thirteen, fifteen, eighteen。2) 2090 由個位數加后綴-ty構成，注意20, 30, 40, 50和80的拼寫分別是twe

3、nty, thirty, forty, fifty, eighty。2199中非整十的兩位數是由整十位數加連字符“-”，再加個位數構成。如：81 eighty-one。3) 101999 的基數詞先寫百位數，后加and 再寫十位數和個位數。如：691 six hundred and ninety-one。4) 1000以上的基數詞先寫千位數，后寫百位數，再加and，最后寫十位數和個位數。如：5893 five thousand eight hundred and ninety-three。在基數詞中只有表示“百”、“千”的單位詞，沒有單獨表示“萬”、“億”的單位詞，而是用thousand（千）

4、和million（百萬）來表達，其換算關系為：1萬=10 thousand; 1億=100 million; 10億=a thousand million=a billion。5) 多位數的讀法：1000 以上的多位數，要使用計數間隔或逗號“，”。即從個位起，每隔三位加一個間隔或逗號。第一個間隔或逗號前是thousand（千），第二個間隔或逗號前是million（百萬），第三個間隔或逗號前是a thousand million 或a billion(十億)。每隔三位分段以后就都成了101999。讀的時候十位數（或個位數）的前面一般要加and。如：888，000，000 讀作：eight hun

5、dred and eighty-eight million。【真題回放】1.There are _ days in a week.A. the sevenB. seventhC. the seventhD. seven2.Can you write the number eighty-five thousand，six hundred and twenty-six？Yes，it is. _.A. 85662B. 85626C. 58662D. 586263.Look at the picture. How many students ride to school in the class?Oh

6、, there are _.A. 8B. 16C. 4D. 12 6) Hundred, thousand, million, dozen, score 這些詞的用法（重難點）a) 前面如有表示具體數字的詞，它們不能加“s”, 其中特別注意several，也表示一個具體數字，其范圍是3-5個：three hundred people, five thousand years；several million studentsb) 反之則須加“s”, 并要與of 短語連用。例如：thousands of people, hundreds of students, thousands of tree

7、sc) 當這些詞后面的名詞其有the, these, those等特指限定修飾詞時，或其后接的是us, them這樣的人稱代詞時, hundred, thousand, million, billion, dozen, score后有不加s, 但加of. 例如：I want three dozen of these eggs.【真題回放】1._ travelers come to visit our city every year.A. Hundred ofB. Hundreds ofC. Five hundredsD. Hundred2.The man also wrote _ of bea

8、utiful pieces of music for the orchestra.A. hundredB. six hundredC. a hundredD. hundreds3.Basketball is so popular a game in the world that _ people play it for fun and exercise.A. million ofB. millions ofC. millionsD. two millions of4.Whats the matter, Kangkang?Oh, I feel sorry to hear more than _

9、people lost their lives in the earthquake (地震) in Sichuan.A. sixty thousands ofB. sixty thousandC. sixty thousand ofD. thousand of5.After Wenchuan earthquake(地震), _ people got together on Tiananmen Square, calling out “Come on, China!”.A. four thousand ofB. thousands ofC. several thousands6.More tha

10、n two _ years ago, people knew little about the universe.A. thousandsB. thousandC. thousand ofD. thousands of7.English is becoming a tourist city. _ people come here during the holidays every year.A. Thousand ofB. Thousands ofC. Five thousands ofD. Five thousands8.Over twenty _ students took part in

11、 the math competition last year.A. thousandB. thousandsC. thousands of9.So far, doctors have saved _ peoples lives in the quake-hit area.A. thousands ofB. thousandC. thousand of10._ visitors come to China every year.A. Thousands ofB. Ten thousandsC. Ten thousand ofD. Thousand of2. 基數詞的用法：1) 基數詞在句中的作

12、用:基數詞的作用相當于名詞和形容詞，在句中可作定語、主語、賓語（介賓）、表語、同位語等。例如:Three and five is eight. 3+5=8 （作表語）How many oranges do you want?你要多少桔子？I want eight. 我要八個。（作賓語）There are eight boats in the lake. 湖里有八條小船。（作定語）2) 年、月、日和時間的表達法: 年份用基數詞，日期用序數詞，其順序常用月、日、年。a) 年份用基數詞表達，分兩位一讀，年份前用介詞in。例如：1999 nineteen ninety-nine2000 two tho

13、usand2010 two thousand and ten / twenty ten b) 月份的表示方法及縮寫：月份前用介詞 on, 月份的第一個字母要大寫，有些月份名稱有縮寫形式。例如：一月January(Jan.), 二月February(Feb.), 三月March(Mar.), 四月（Apr.）, 五月May, 六月June, 七月July, 八月August(Aug.)，九月September(Sept.), 十月October(Oct.), 十一月November(Nov.), 十二月December(Dec.)c) 日期的表達要用序數詞，讀時前面要加定冠詞the,介詞要使用o

14、n。例如：在6 月1 日：on June 1st 讀作：on June the first.d) 年、月、日同時表達時，一般應先寫月、日、后寫年。如：在2001年5月4日：on May 4th, 2001。（中考考點-主要在聽力中體現）3) 編了號的事物要用基數詞表示順序，但是基數詞要后置。例如： 第一課：Lesson One 第三十二頁：Page 32第305 房間：Room 305; 第12 路公共汽車：Bus No.12（中考考點-主要在聽力中體現）【真題回放】1.The new student is in _.A. Class 2B. Class SecondC. 2 Class2.-

15、There is a wrong word in Line _.- Where?- In the _ line.A. Two; two       B. Two; second     C. second; two   D. second; second4) 幾點幾十分的表達法：可用順讀法或倒讀法兩種方式表達。例如：a) 表示整點時間，直接用基數詞表達，后邊可接oclock (也可不加)。表達“幾點幾分”時，絕不能用oclock。如：5:00-five (oclock)b) 在倒讀法中，如果鐘點不過半，須

16、用“分鐘數+past+鐘點數”的形式；如果鐘點過半，則用“差多少分鐘數+to+全鐘點（下個鐘點數）”的形式。如：6:18-six eighteen 或eighteen past six; 6:48twelve to seven c) 半點可以half表示，如：4:30-four thirty 或half past fourd) 表達“15 分”或“45 分”時，常用quarter（刻）。如：12:15-twelve fifteen或fifteen (a quarter) past twelve; 6:45-six forty/five a quarter to seven時間類型表示法例讀法整

17、點基數詞（+ oclock) 1:00one oclock30分鐘分鐘 + past +小時 2:10ten past two= 30 分鐘half + past + 小時3:30half past three30分鐘（60-分鐘） + to +（小時 + 14:40twenty to five分鐘逢15即 一刻鐘a quarter5:156:45a quarter past fivea quarter to seven簡化法按順序讀基數詞7:50seven fifty【真題回放】1.Our first class begins at a quarter to eight.A. 8:15B.

18、7:15C. 8:45D. 7:452.- Its already 7:40 now. When will the film start?- _. We still have five minutes.A. A quarter to sevenB. Seven past forty-fiveC. A quarter to eight5) 分數表達法a) 分數的分子用基數詞，分母用序數詞。如：one fifth 五分之一 one tenth 十分之一b) 當分子大于1 時，分母用序數詞的復數。如： two thirds 三分之二 five eighths 八分之五c) 當分子是1 時，可以用on

19、e 也可以用a。如： a second = one second a third = one thirdd) 當分母是2 和4 時，分別可以用half 和quarter 代替。如：a half 二分之一 three quarters 四分之三注意：分數考查往往和主謂一致相聯系。當分數修飾可數名詞的復數時，謂語動詞用復數形式；當分數修飾不可數名詞時，謂語動詞用單數形式。如：Three fourths of the students in my class are interested in English. 我們班四分之三的學生對英語感興趣。Two thirds of the water on

20、the earth is sea water. 地球上三分之二的水是海水。拓展：one in three, one out of three也表示三分之一，在閱讀中常見?！菊骖}回放】1.About _ of the workers in the clothes factory are women.A. third fifthsB. third fifthC. three fifthsD. three fifth2._of the warm water _already been used up.A. Two-third; hasB. Two-third; haveC. Two-thirds;

21、hasD. Two-thirds; have6) 百分數表達法：基數詞+percent of【注意】：百分數的考查往往和主謂一致相聯系。當百分數修飾可數名詞的復數時，謂語動詞用復數形式；當百分數修飾不可數名詞時，謂語動詞用單數形式。如：Eighty percent of the students in our school come from Henan. 我們學校百分之八十的學生來自河南。7) 小數表達法a) 小數點前的整數按基數詞的規則表示，小數點寫作point, 小數后的數字應按其數字直接表示出來。如：18.38 可寫成：eighteen point three eight。注意：小數在

22、句中常作定語，尤其在比較方式狀語從句中被使用。如：This stone is 3.5 times heavier than that one.b) 表示錢的讀法，如$2:50, 讀成 two dollars and fifty8) 兩組與數詞有關的介詞短語：a) in+定冠詞the+數詞的復數形式，表示年代。如：in the 1870s 或1870s20 世紀90 年代：nineteen nineties；21 世紀20 年代：twenty twentiesb) in+物主代詞+數詞的復數形式，表示某人的年齡。如：in ones thirties。有時在物主代詞后面可加上形容詞early 或l

23、ate 使其含義更確切些。如：The young man is at most in his early thirties.【真題回放】1.About _ of the workers in the factory were born in the _.A. two-thirds; 1970B. two-thirds; 1970sC. two-third; 1970D. two-third; 1970s2.-There are sixty students in our class. And _ of us are boys.-Wow! You have forty girls!A. one

24、fourthB. one third  C. two fifths    D. two thirds3._of the students in our class_ money to the disabled people these days.A. Two third, have raisedB. Two thirds, has raisedC. Two three, have raisedD. Two thirds, have raised9) 數量表示法a) 表示長，寬，高，面積等，用基數詞+單位詞（meter, foot, inch, kilogram 等

25、）+in+名詞（length, width, height, weight 等）表示。two meters long或two meters in length 兩米長three feet high或three feet in height 三英尺高b) 帶有數詞的名詞作定語的表達：a seven-year-old boy，a hundred-metre race【真題回放】1.Each of us has to write a report every two weeks. A. two-hundred-word B. two-hundreds-wordC. two-hundreds-word

26、s D. two-hundred-words2.北京首都機場三號航站樓長2,900米，寬790米。 Beijing Capital International Airport Terminal 3 is _. 10) 加減乘除表示法：+plus，minus，×multiplied ÷divided。如：5+7five plus seven， 93nine minus three， 8×9eight multiplied by nine，64÷8sixty divided by eight， 6：5 the ratio of six to five， 42

27、 four-squared， 33three-cubed， 54the fourth power of five注意：謂語動詞為單數。11) 表示倍數（根據學生情況選擇使用）a) 幾倍大?。ㄩL短，數量）=幾倍（或分數）+the size(length, amount)。例如：The earth is forty-nine times the size of the moon. 地球是月球的49倍。b) 比幾倍=倍數（或分數）+形容詞（副詞）比較級+than+被比部分。例如：His house is three times bigger than mine. 他的房子比我的房子大三倍。c) 是倍

28、=倍數（或分數）+as +形容詞+as +被比部分。例如： This factory is four times as big as that one. 這個工廠是那個工廠的四倍。12) 表示約數a) “多于”用more than 或over。例如：The street is over(more than) 500 metres long. 這條街有500 多米長。b) “小于”用less than。例如：Three are less than 30 people in the classroom. 教室里不到三十人。c) “或以上”用or more。例如：The building can h

29、old 5000 people or more. 那座建筑物可容納5000 人或5000 人以上。d) “或以下”用or less。例如：We can finish the work in two weeks or less. 我們可以在兩周內或不到兩周完成這件工作。e) “大約”用about, around, nearly 等。例如：The box weighs about 50 pounds. 這箱子重約50 鎊。f) “左右”用or so. 例如：In the past ten years or so, they have changed a lot. 在過去的十年里，他們改變了許多。二

30、序數詞1. 概念：表示順序的詞，叫序數詞。序數詞用來表示數詞順序。除特殊情況外，序數詞一般都由相應的基數詞加后綴-th 構成。請見下表：第一到第十第十一到第十九第二十以上firsteleventhtwentiethsecondtwelfththirtieththirdthirteenthfortiethfourthfourteenthfiftiethfifthfifteenthsixtiethsixthsixteenthseventiethseventhseventeentheightietheightheighteenthninetiethninthnineteenthhundredthte

31、nththousandth【說明】：1英語中表示第一、第二、第三的序數詞屬特殊形式，要注意它們的拼寫。2表示“幾十”的序數詞通常是將基數詞詞尾y 變成i 再加上后綴-eth。3其余的二位數序數詞是以相應的整十基數詞加個位序數詞。如：fifty-first（第五十一）。4少數序數詞拼法不規則，如：fifth（ 第五），eighth（ 第八），ninth（ 第九），twelfth（第十二）等?！咀⒁狻?) 基變序助記歌：基變序，有規律，末尾加上th；一、二、三，特殊記，八加h，九去e，ve要用f替；以y結尾用ie，后跟th莫忘記。若想表達幾十幾，只變個位就可以。2) 序數詞可縮寫為阿拉伯數字加序數

32、詞最后兩個字母。例如：第一：(the) first=1st 第二：(the) second=2nd 第三：(the) third=3rd 第五：(the) fifth=5th第九十七：(the) ninety-seventh=97th 第一百零一：(the) one hundred (and)first=101st3) 易錯點：fifth（ 第五），eighth（ 第八），ninth（ 第九），twelfth（第十二），fortieth(第四十)。2 序數詞的用法1) 序數詞表順序，主要作定語，其前面須加上定冠詞the，此外，也作主語、賓語、表語和定語等，這時，被它所修飾的名詞往往被省略。如：

33、The first (person) to arrive is Kate. 例如：The first is bigger than the second. （作主語）第一個比第二個大。Give me the first. （作賓語）把第一個給我。Shes often the first to go to school. （作表語）她經常第一個去上學。Were going to learn the eighth lesson. （作定語）我們將要學習第八課。2) 序數詞一般前用the，但是當其前面有物主代詞，名詞所有格等詞時，就不用定冠詞the了?！菊骖}回放】1.I think _ lesson

34、 is the most difficult in this book.A. fiveB. fifthC. the fifthD. fifteen2.December is the _ month in a year.A. twentyB. twelveC. twentiethD. twelfth3.- Excuse me. Where is Mr. Greens office?- Its on _ floor.A. seven B. the seven C. the seventh D. seventh4.Peter, how old is your father this year?_.

35、And we just had a party for his _ birthday last weekend.A. Fortieth; fortyB. Forty; fortyC. Forty; fortiethD. Fortieth; fortieth5.Shanghai has opened its _ TV channel (頻道) that sends programs in foreign languages.Great! I can improve my English over it.A. firstB. a firstC. the first6.All the teacher

36、s live on _ floor.A. the secondB. twoC. second7.Everyone knows Beijing will host _ Olympic Games in August, 2008.A. 28thB. 29thC. the 29th8.The work is too difficult for Mr. Xu to finish in a week. He needs _ days.A. more twoB. two moreC. two anotherD. another more9.Hurry up. There isnt much time le

37、ft.Dont worry. I need _ minutes to finish the work.A. twelve anotherB. another twelveC. more twelve10.Fathers Day is on _ Sunday of June.A. threeB. thirdC. the third11.-Where does John live?-He lives on _ floor but he doesnt use a lift to go up and down.A. nineB. the ninthC. ninthD. a ninth12.John,

38、how old is your grandfather?_. We had a party for his _ birthday last week.A. Eighty; eightieth B. Eighty; eighty C. Eightieth; eighty D. Eightieth; eightieth13.-How many times have you been here?-This is my _ visit.A. four B. the four C. fourth D. the fourth14.Today is my mothers _ birthday. I will

39、 buy her a gift.A. fourteenB. fourteenthC. fortyD. fortieth15.-How was your day off yesterday?-Perfect! It was _ birthday of my grandmas. We had a big family celebration.A. eightyB. the eightiethC. eightieth16.-Good news! Bill won_ medal in the long jump just now.-Really? Thats his_ one at our sport

40、s meeting.A. a：four B. an；fourth C. a；fourth重難點一數詞中的易混點 1. 序數詞除了與定冠詞the和物主代詞，名詞所有格等連用表示順序外，還與冠詞a/an連用時，表示一種特殊的功能，意為“再，又”，相當于another，如Then they had a second child- a son.2. 數詞作主語，謂語動詞用單數。如：Two dollars is enough.3. another與more接數詞的不同位置區別：another+數詞A=A數詞+moreCould you give me one more chance? Ill try m

41、y best to succeed.A. two B. the other C. another4. 數詞半的表示法一個半小時- one and a half hours = one hour and a half兩個半小時- two and a half hours = two hours and a half5. twos and threes(三三兩兩)和sixes and sevens（亂七八糟）區別。They came home from church by . 他們三三兩兩地從教堂回來。Everything is in the house. 家里現在亂七八糟?！菊骖}回放】1.-Ho

42、w long will Philip stay here?-Two _ weeks till he lives.A. manyB. muchC. moreD. most2.A new study proves a_ walk every day is enough to keep people away from becoming fat.A. 30-minute B. 30 minutes C. 30-minutes3.- Is your home far from school?- No. Its only _ walk.A. ten-minutes B. ten minutes C. t

43、en minutes D. ten-minute4.The boy always stays there for _.A. one and half hourB. one and a half hourC. one and a half hours5.The old man drank_ beer.A. two bottles and a halfB. two and a half bottleC. two bottle and a half二數詞考點解析：考點概述數詞的考查側重在基數詞的寫法、讀法，序數詞的構成，分數詞的構成?？键c一、基數詞寫法、讀法的考查1.There are _ days

44、 in a week.A. the seven B. seventh C. the seventh D. seven 2.Can you write the number eighty-five thousand，six hundred and twenty-six？Yes，it is. _.A. 85662 B. 85626 C. 58662 D. 58626 考點二、序數詞構成、用法的考查3. I think _ lesson is the most difficult in this book.A. five B. fifth C. the fifth D. fifteen 4. Dec

45、ember is the _ month in a year.A. twenty B. twelve C. twentieth D. twelfth 考點三、分數詞構成、用法的考查5. About _ of the workers in the clothes factory are women.A. third fifths B. third fifth C. three fifths D. three fifth 考點四、數詞與名詞表編號的考查6. The new student is in _.A. Class 2 B. Class Second C. 2 Class 考點五、hundred，thousand，million 等詞復數形式的考查7. _ travelers come to visit our city every year.A. Hundred of B. Hundreds ofC. Five hundreds D. Hundred 考點六、時刻表示法的考查8. Our first class begins at a quarter to eight. A. 8:15 B. 7:15 C. 8:45 D. 7:45課后作業一單項選擇1.Two _died of cold last wi