中考專項復(fù)習(xí)4數(shù)詞

1、數(shù)詞數(shù)詞-就是表示事物的數(shù)量就是表示事物的數(shù)量和順序的詞和順序的詞, ,分為基數(shù)詞和序分為基數(shù)詞和序數(shù)詞兩種。數(shù)詞兩種。數(shù)數(shù)詞詞基數(shù)詞基數(shù)詞序數(shù)詞序數(shù)詞表示事物的數(shù)量表示事物的數(shù)量表示事物的順序表示事物的順序(1)1-12分別由從分別由從one到到twelve12個個各不相同的詞表示。各不相同的詞表示。0 zero 1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve 基數(shù)詞基數(shù)詞構(gòu)成方法如下：構(gòu)成方法如下：13 thirteen 14 fourteen 15 fift

2、een 16 sixteen 17seventeen 18 eighteen 19 nineteen(2)13-19均以后綴均以后綴-teen結(jié)尾。結(jié)尾。20 twenty 30 thirty 40 forty 50 fifty 60 sixty 70 seventy 80 eighty 90 ninety (3)20-90的整十?dāng)?shù)詞均以后綴的整十?dāng)?shù)詞均以后綴-ty結(jié)結(jié)尾。尾。表示表示“幾十幾幾十幾”時時, 個位和十位之個位和十位之間需加連詞符間需加連詞符, 如如: twenty-one, thirty-two, forty-three.(4)三位數(shù)數(shù)詞三位數(shù)數(shù)詞:百位和十位百位和十位(若無十

3、位則和個位若無十位則和個位)之間用之間用and連接連接,十位和個位間用十位和個位間用“-” 連接。連接。156 one hundred and fifty-six;810 eight hundred and ten 204 two hundred and four;(5) 1,000以上的數(shù)字以上的數(shù)字,從右往左數(shù)從右往左數(shù),三位一組三位一組,每三位數(shù)加一逗號每三位數(shù)加一逗號“,”;第一個第一個“,”號前為號前為thousand(千千), 第二個第二個“,”號前為號前為million(百萬百萬),第三個第三個“,”號前為號前為billion(十億十億) 。萬以上的數(shù)字讀法特點(diǎn)萬以上的數(shù)字讀法特

4、點(diǎn)6, 500, 431, 729hundredthousandmillionbillion注意每三個數(shù)為一個單位，按照百、注意每三個數(shù)為一個單位，按照百、十、個向下讀。十、個向下讀。6，500，431，729seven hundred and twenty-nine thousandmillionbillionsix billion,five hundred million,four hundred and thirty-one thousand,hundred 100 one / a hundred 1,000 one thousand 10,000 ten thousand 100,00

5、0 one hundred thousand 1,000,000 one million26 twenty-six 260 two hundred and sixty 2,261 two thousand, two hundred and sixty-one 2,026 two thousand and twenty-six 1,200,226 one million, two hundred thousand, two hundred and twenty-six one billion, nine hundred and eighty-seven million, six hundred

6、and fifty-four thousand, three hundred and twenty-one seven million, six hundred and fifty-four thousand, three hundred and twenty-one four thousand, three hundred and twenty-one7,654,3211,987,654,3214,321注意注意:hundred, thousand, million前前面如果有具體數(shù)字面如果有具體數(shù)字,要用單數(shù)形式要用單數(shù)形式;但如果它們后面有但如果它們后面有of,那它們要用那它們要用復(fù)數(shù)形

7、式復(fù)數(shù)形式,同時同時,前面不能再加具體前面不能再加具體的數(shù)詞。的數(shù)詞。hundred, thousand, million前邊有數(shù)字不加s;后邊有of加s。 基數(shù)詞基數(shù)詞+hundred thousand million表示表示具體具體數(shù)字?jǐn)?shù)字表示具體、準(zhǔn)確的數(shù)目時表示具體、準(zhǔn)確的數(shù)目時, hundred, thousand, million等詞等詞后不能加后不能加-s,如如: five hundred, six thousand, seven million 等。等。hundredsthousandsmillions+of表示表示概數(shù)概數(shù)當(dāng)當(dāng)hundred, thousand等數(shù)詞與等數(shù)詞與

8、of 連用連用, 表示不具體、不準(zhǔn)確的數(shù)目表示不具體、不準(zhǔn)確的數(shù)目時時, 詞尾須加詞尾須加-s。如。如: thousands of students, millions of trees.1.two thousand children 兩千個小孩子兩千個小孩子 thousands of fish 數(shù)千條魚數(shù)千條魚, 成千上萬成千上萬條魚條魚2. five hundred women 五百位婦女五百位婦女 hundreds of sheep 數(shù)百只綿羊數(shù)百只綿羊, 成百成百上千只羊上千只羊3. six million dollars 六百萬美元六百萬美元 millions of mice 數(shù)百萬

9、只老鼠數(shù)百萬只老鼠,thousand 與 thousands ofThousands and thousands of people have visited the city.若表示某一個數(shù)是某些特指人或東若表示某一個數(shù)是某些特指人或東西中的一部分西中的一部分, hundred等后面可跟等后面可跟of。two hundred of the students這些學(xué)生其中的二百個這些學(xué)生其中的二百個比較比較: two hundred students 二百個學(xué)生二百個學(xué)生one student, one of the studentsa few后常接后常接 hundred;many后常接后常接h

10、undreds of;several后常接后常接hundred或或hundreds of。a few hundred men幾百人幾百人 many hundreds of men幾百人幾百人 1. If a = 3, b=4, whats the answer to the problem, a+2ab+1=? The answer is _. A. twenty eight B. twenty-eighth C. twenty-eight2. In our school several _ students are able to search the Internet. A. hundre

11、d of B. hundreds of C. hundredCBC3. Many _ sheep were killed in the accident. A. thousands of B. thousand C. thousands4. There are over nine _ workers in the factory, but _ of young people hope to work in it. A. hundred; hundreds B. hundreds; hundreds C. hundreds; hundredAAOur summer holiday is comi

12、ng. Two _ the students in our school will go to the beach. (2003重慶重慶)A. hundred B. hundreds C. hundred of D. hundreds of若表示某數(shù)是某些特指人或東西中的一部分若表示某數(shù)是某些特指人或東西中的一部分, hundred 后可跟后可跟of。 one student, two hundred students;one of the students, two hundred of the studentsC序數(shù)詞序數(shù)詞1 = one 1st = first 2 = two 2nd =

13、 second 3 = three 3rd = third 4 = four 4th = fourth 5 = five 5th = fifth 6 = six 6th = sixth 7 = seven 7th = seventh 8 = eight 8th = eighth 9 = nine 9th = ninth 10 = ten 10th = tenth11 = eleven 11th = eleventh 12 = twelve 12th = twelfth 13 = thirteen 13th = thirteenth 14 = fourteen 14th =fourteenth

14、15 = fifteen 15th = fifteenth 16 = sixteen 16th =sixteenth 17 = seventeen 17th = seventeenth 18 = eighteen 18th =eighteenth 19 = nineteen 19th =nineteenth 20 = twenty 20th = twentieth 21 = twenty-one 21st = twenty-first 22 = twenty-two 22nd = twenty-second序數(shù)詞序數(shù)詞one two three four five six seven eigh

15、t nine tenfirst second third fourth fifth sixth seventh eighth ninth tenth 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty eleventh twelfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentiet

16、h11th 12th13th14th15th16th17th18th19th20th基數(shù)詞基數(shù)詞基數(shù)詞基數(shù)詞序數(shù)詞序數(shù)詞序數(shù)詞序數(shù)詞基變序基變序,有規(guī)律有規(guī)律,詞尾加上詞尾加上th。123,特殊記特殊記,詞尾字母詞尾字母t,d,d。8去去t,9去去e,f來把來把ve替。替。twenty-one twenty-two twenty-three thirty forty fifty sixty seventy eighty ninety hundredtwenty-first twenty-second twenty-third thirtieth fortieth fiftieth sixtie

17、th seventieth eightieth ninetieth hundredth 21st 22nd 23rd 30th 40th 50th 60th 70th 80th 90th 100th 整十整十y 變變i， th前有小前有小e來來基數(shù)詞基數(shù)詞 序數(shù)詞序數(shù)詞基數(shù)詞基數(shù)詞序數(shù)詞序數(shù)詞基數(shù)詞基數(shù)詞序數(shù)詞序數(shù)詞onetwelvetwotwentythreetwenty-onefourfortyfiveone hundredsixone hundred and fiveeightone hundred and twenty-nineninenineteen基數(shù)詞、序數(shù)詞基數(shù)詞、序數(shù)詞fir

18、stsecondthirdfourthfifthsixtheighthninthtwelfthtwentiethtwenty-firstfortiethone hundredthone hundred and fifthone hundred and twenty-ninthnineteenth(1).序數(shù)詞除了序數(shù)詞除了first (第一第一)、second (第二第二)、third (第三第三) 特殊外特殊外,其余的其余的都是在基數(shù)詞上加詞尾都是在基數(shù)詞上加詞尾-th構(gòu)成。構(gòu)成。 注注意意fifth, eighth, ninth, twelfth這幾這幾個詞。個詞?；鶖?shù)詞基數(shù)詞 onetw

19、othree序數(shù)詞序數(shù)詞 firstsecond third基數(shù)詞基數(shù)詞 fiveeightninetwelve序數(shù)詞序數(shù)詞 fiftheighthninthtwelfth(2)從第二十至第九十以從第二十至第九十以-ty 結(jié)尾結(jié)尾的表示的表示“幾十幾十”的基數(shù)詞的基數(shù)詞( (十位整十位整數(shù)的序數(shù)詞數(shù)的序數(shù)詞) ) ,先變先變y為為ie,再加再加“-th”構(gòu)成。構(gòu)成。twentytwentieth; thirtythirtiethforty fifty sixty seventy eighty ninety (3)表示表示“第幾十幾第幾十幾”時，十位數(shù)時，十位數(shù)的的“幾十幾十”仍用基數(shù)詞，只把處

20、仍用基數(shù)詞，只把處位部分變成序數(shù)詞。位部分變成序數(shù)詞。thirty-onethirty-first 第第31forty-twoforty-second; fifty-sixth; seventy-third; ninety-ninth(4)第一百以上的多位序數(shù)詞由基第一百以上的多位序數(shù)詞由基數(shù)詞的形式數(shù)詞的形式變結(jié)尾部分為序數(shù)詞變結(jié)尾部分為序數(shù)詞形式形式one hundred and twenty-first 第一百二十一第一百二十一one thousand, three hundred and twentieth 第一千三百二十第一千三百二十(5)序數(shù)詞的縮寫形式序數(shù)詞的縮寫形式有時有時,

21、序數(shù)詞可以用縮寫形式來表示序數(shù)詞可以用縮寫形式來表示。序序數(shù)詞的縮寫形式數(shù)詞的縮寫形式, 由由阿拉伯?dāng)?shù)字加序數(shù)詞阿拉伯?dāng)?shù)字加序數(shù)詞的最后兩個字母的最后兩個字母構(gòu)成構(gòu)成。主要縮寫形式有。主要縮寫形式有。first1st; second2nd; third3rd; fourth4th; sixth6th; twentieth20th; twenty-third23rd其中其中1st, 2nd, 3rd為特殊形式為特殊形式, 其它的都其它的都是阿拉伯?dāng)?shù)字后加上是阿拉伯?dāng)?shù)字后加上th。一般是在基數(shù)詞后加上一般是在基數(shù)詞后加上-th構(gòu)成構(gòu)成, 但應(yīng)記但應(yīng)記住一些特殊變化住一些特殊變化, 口訣如下：口訣如

22、下：基變序基變序, 有規(guī)律，有規(guī)律， 詞尾加上詞尾加上“th”。 一二三一二三(first, second, third), 特殊例，特殊例， 詞尾字母詞尾字母t、d、d。 八去八去t、九去、九去e, (eighth, ninth) ve要用要用f替。替。(fifth, twelfth) ty將將y改作改作i， th前面有個前面有個e。(twentieth)注注: 序數(shù)詞前通常要加定冠詞序數(shù)詞前通常要加定冠詞 the。Well go over it a second time.Weve tried it three times. Must we try it a fourth time?The

23、 Second World War broke out in 1939.注注: 序數(shù)詞前出現(xiàn)不定冠詞序數(shù)詞前出現(xiàn)不定冠詞a或或an時時,則表示則表示“再再”, “又又”。(=another)In order to find _ better job, he decided to study _ second foreign language. (2009四川卷四川卷)A. the; a B. a; a C. the; the D. a; theBTwo days isnt enough for me to finish the work. I need _ day. (2008寧波市鄞寧波市鄞

24、yin州州)A. a third B. the third C. the other D. otherAIn order to make it clear, I must go up to _ second floor and ask him _ second time. (2005呼和浩特市呼和浩特市)A. the; a B. the; theC. a; the D. a; aA1.作主語作主語Two of them are Party members.他們之中的兩個人是黨員他們之中的兩個人是黨員。2.作賓語作賓語Please pass me the second.請遞給我第二個。請遞給我第

25、二個。3.作定語作定語The nine boys are from Tianjin.這九個男孩子是天津這九個男孩子是天津人。人。The ninth boy is from Tianjin.第九個男孩是天津人。第九個男孩是天津人。4.作表語作表語Six and / plus four is ten.六加四等于十。六加四等于十。Six minus four is two.六減四等于二。六減四等于二。5.作同位語作同位語(只限基數(shù)詞只限基數(shù)詞)We four will go with you. 我們四個人將和你一起去。我們四個人將和你一起去。時間類型時間類型表示法表示法例例讀法讀法整點(diǎn)整點(diǎn)基數(shù)詞基數(shù)

26、詞 (+ oclock) 1:0030分鐘分鐘分鐘分鐘 + past +鐘點(diǎn)鐘點(diǎn)2:10= 30 分鐘分鐘half + past +鐘點(diǎn)鐘點(diǎn)3:3030分鐘分鐘到下一個鐘點(diǎn)所差的分到下一個鐘點(diǎn)所差的分鐘數(shù)鐘數(shù)+to+下一個鐘點(diǎn)數(shù)下一個鐘點(diǎn)數(shù) 4:40分鐘逢分鐘逢15即即 一刻鐘一刻鐘a quarter past / to5:156:45簡化法簡化法按順序讀基數(shù)詞按順序讀基數(shù)詞7:50one (oclock)ten past twohalf past threetwenty to fivea quarter past fivea quarter to sevenseven fifty表示在幾點(diǎn)鐘

27、用介詞表示在幾點(diǎn)鐘用介詞at數(shù)詞的表示法數(shù)詞的表示法 時刻時刻時刻表示法時刻表示法時刻通常用基數(shù)詞來讀時刻通常用基數(shù)詞來讀順序法順序法:先說鐘點(diǎn)數(shù)先說鐘點(diǎn)數(shù), 后說分鐘數(shù)。后說分鐘數(shù)。 8:45(=eight forty-five)10:05(=ten five)6:30= six thirty10:25 = ten twenty-five14:05 = fourteen o five16:15 = sixteen fifteen18:30 = eighteen thirty23:55 = twenty-three fifty-five注意注意: :表示表示“整點(diǎn)整點(diǎn)”時時, ,在基數(shù)詞在基數(shù)

28、詞后加后加oclock: 9 oclock幾點(diǎn)過幾分幾點(diǎn)過幾分:分鐘數(shù)分鐘數(shù)30分鐘時分鐘時,用用“分鐘數(shù)分鐘數(shù)+past+鐘點(diǎn)數(shù)鐘點(diǎn)數(shù)”；6:05five past six 8:15a quarter past eight 9:25twenty-five past nine 7:30half past seven 反序法反序法: 先說分鐘數(shù)先說分鐘數(shù), 后說鐘點(diǎn)數(shù)。后說鐘點(diǎn)數(shù)。6:20 / 7:25 / 8:15 / 9:10 幾點(diǎn)差幾分幾點(diǎn)差幾分:分鐘數(shù)分鐘數(shù)30 時時,用用“到下一個鐘點(diǎn)所到下一個鐘點(diǎn)所差的分鐘數(shù)差的分鐘數(shù)+to+下一個鐘點(diǎn)數(shù)下一個鐘點(diǎn)數(shù)”。 7:35twenty-fiv

29、e to eight 11:40twenty to twelve 8:50ten to nine “也可以依次讀鐘點(diǎn)數(shù)和分鐘數(shù)也可以依次讀鐘點(diǎn)數(shù)和分鐘數(shù)”。10:40 / 6:35 / 8:55 / 9:45 / 11:50兩個特殊的表示分鐘的單位詞兩個特殊的表示分鐘的單位詞:30分鐘用分鐘用half, 15分鐘用分鐘用a quarter。6:30 讀作讀作half past six;6:15讀作讀作a quarter past six; 6:45讀作讀作a quarter to seven注意注意: 時刻表上的時間大多采用時刻表上的時間大多采用24小小時表示法時表示法, 這樣就不需要用這樣就

30、不需要用a.m.表示表示上午上午, p.m.表示下午了。表示下午了。8:20 eight twenty twenty past eight9:55 nine fifty-five five to ten11:30 eleven thirty half past eleven7:45 seven forty-five a quarter to eight6:15 six fifteen a quarter past six Its already 7:40 now. When will the film start?_. We still have five minutes. A. A quar

31、ter to seven B. Seven past forty-five C. A quarter to eightC三、年月表示法三、年月表示法the sixth (6th) century 公元六世紀(jì)公元六世紀(jì)the eighteenth (18th) century 公元十八世紀(jì)公元十八世紀(jì)the 1900s 二十世紀(jì)二十世紀(jì)the 1600s 十七世紀(jì)十七世紀(jì)1. 世紀(jì)世紀(jì)可以用可以用 “the+序數(shù)詞序數(shù)詞+ century”表示表示,也可以用也可以用 “the+百位進(jìn)數(shù)加百位進(jìn)數(shù)加s”表示表示2. 年代年代用用 “the+基數(shù)詞表示的世紀(jì)基數(shù)詞表示的世紀(jì)+十十位整數(shù)的復(fù)數(shù)形式表示

32、的年代位整數(shù)的復(fù)數(shù)形式表示的年代”構(gòu)成。構(gòu)成。在二十世紀(jì)三十年代在二十世紀(jì)三十年代in the 1930s (in the nineteen thirties)在十九世紀(jì)六十年代在十九世紀(jì)六十年代in the 1860s (in the eighteen sixties) 1. There will be more chances in _ century than in _ century. A. twenty-one, twenty B. twenty-first, twentieth C. the twenty-first, the twentieth 2. The city chang

33、ed a lot _. A. in 1980s B. in the 1980s C. in the 1980CB 3. He graduated in _ of _ century. A. the sixtieth; twenty B. sixty; the twentieth C. the sixties; the twentiethin the sixties在六十年代在六十年代in his sixties在他六十幾歲的時候在他六十幾歲的時候C“in ones + 整十位基數(shù)詞的復(fù)數(shù)形整十位基數(shù)詞的復(fù)數(shù)形式式”, 表示表示“在某人幾十幾歲的時在某人幾十幾歲的時候候”。4. He got t

34、he prize _. A. in his fifties B. in fifties C. in his fiftyA“in ones + 整十位基數(shù)詞的復(fù)數(shù)整十位基數(shù)詞的復(fù)數(shù)”是一種習(xí)是一種習(xí)慣表達(dá)法慣表達(dá)法, 用以表示約略年齡用以表示約略年齡, 意為意為“在某人在某人幾十幾歲的時候幾十幾歲的時候”。使用該結(jié)構(gòu)時。使用該結(jié)構(gòu)時, 必須注必須注意數(shù)詞用復(fù)數(shù)形式意數(shù)詞用復(fù)數(shù)形式, 其前是形容詞性物其前是形容詞性物主代詞主代詞, 最前面是介詞最前面是介詞in。in ones forties在某人四十多歲時在某人四十多歲時My mother is in her fifties.When Mr Li

35、u was _, he became a famous professor.A. on his forties B. in the fortiesC. in the forty D. in his fortiesMy father began to learn Russian when he was over fifty. My father began to learn Russian _ _ _. in his fiftiesDA. 年份用基數(shù)詞表示年份用基數(shù)詞表示, 一般寫為阿拉伯?dāng)?shù)字。一般寫為阿拉伯?dāng)?shù)字。 是是四位數(shù)字時四位數(shù)字時, 各分成二位來讀。各分成二位來讀。1949 讀作讀作:

36、 nineteen forty-nine1800 eighteen hundred253 two hundred and fifty-three1902 nineteen hundred and two或或 nineteen o two使用使用year時放在數(shù)詞之前。時放在數(shù)詞之前。in the year 2000 (=in 2000)在在2000年年但是但是, 通常采用通常采用in加表示年份的阿拉伯?dāng)?shù)字。加表示年份的阿拉伯?dāng)?shù)字。 in 2000 在在2000年年數(shù)詞的表示法數(shù)詞的表示法 年份年份日期日期: : the加序數(shù)詞表示加序數(shù)詞表示National Day is on October

37、 1(st). (讀作讀作 October the first)National Day is on the 1st of October 月日月日,年年數(shù)詞的表示法數(shù)詞的表示法 年月日年月日on October the first, two thousand and eight日日the + 序數(shù)詞序數(shù)詞月月(首字母大寫首字母大寫)月日與年之間月日與年之間用逗號分開用逗號分開年年（兩位兩位讀）（兩位兩位讀）寫作寫作on August 9(th)寫作寫作in May, 2010有日用有日用 on; 無日用無日用in在在2008年年10月月1日日寫作寫作on October 1(st), 200

38、8 月日月日 在在8月月9日日 月年月年 在在2010年年5月月在具體的某一天的早晨、上午、下午、晚上、在具體的某一天的早晨、上午、下午、晚上、夜里用介詞夜里用介詞on。morning, afternoon, evening等詞前用介詞等詞前用介詞in: in the morning / afternoon / evening。但是但是, 當(dāng)這些詞前或后有定語時當(dāng)這些詞前或后有定語時, in應(yīng)改為應(yīng)改為on。He was born on the night of December 25th, 1992.He suddenly came back on a rainy night. 1. The

39、 accident happened on _. A. April 5, 2001 B. 2001, April 5 C. April 2001, 52. I was born _. A. in March 8, 1993 B. on July 9, 1994 C. on May, 1995AB分?jǐn)?shù)的表示法分?jǐn)?shù)的表示法:分子用基數(shù)詞分子用基數(shù)詞,分母用序數(shù)詞。分分母用序數(shù)詞。分子大于子大于1時時,分母用復(fù)數(shù)分母用復(fù)數(shù)(+s)?；鶖?shù)詞基數(shù)詞序數(shù)詞序數(shù)詞數(shù)詞的表示法數(shù)詞的表示法 分?jǐn)?shù)分?jǐn)?shù)15分子分子 基數(shù)詞基數(shù)詞分母分母 序數(shù)詞序數(shù)詞one fifth27分子分子 1分母分母 + stwo sev

40、enths14分子分子 a分母分母 quartera fourth / one fourth / a quarter / one quarter34three fourthsthree quarters12a second / a half1/3 one third或或a third; 3/5three fifths;24/25 twenty-four twenty-fifthsAbout _ of the workers in the factory were born in the _. (2008無錫市無錫市;2009蘭州市蘭州市)A. two-thirds; 1970 B. two-t

41、hirds; 1970sC. two-third; 1970 D. two-third; 1970sB1 1/2 one and a half1 1/4 one and a quarter 3 1/4 three and one fourth或或 three and one quarter13three and one third3基數(shù)詞基數(shù)詞 + and + 分?jǐn)?shù)分?jǐn)?shù)分?jǐn)?shù)修飾名詞時分?jǐn)?shù)修飾名詞時, 后加后加of短語。短語。2/7的老師的老師: two sevenths of teachers80 %百分?jǐn)?shù)百分?jǐn)?shù)(%)基數(shù)詞基數(shù)詞+percenteighty percenthalf / (百百

42、)分?jǐn)?shù)分?jǐn)?shù) + of + 可數(shù)名詞復(fù)數(shù)可數(shù)名詞復(fù)數(shù) 謂語動詞用復(fù)數(shù)謂語動詞用復(fù)數(shù)half / (百百)分?jǐn)?shù)分?jǐn)?shù) + of + 不可數(shù)名詞不可數(shù)名詞謂語動詞用單數(shù)謂語動詞用單數(shù)Three fourths of the apples _ bad.Three fourths of the apple _ bad.areis1. _ of the students _ boys in our class. A. Two three; are B. Two thirds; are C. Two thirds; is2. _ of her money _ spent on clothes.A. Two t

43、hree; are B. Two thirds; is C. Two third; is3. _ the teachers in our school is about one hundred, and _ of them are women teachers.A. The number of; two third B. The number of; two thirds C. A number of; two thirdsBBB3.78讀作讀作three point seven eight小數(shù)小數(shù)小數(shù)點(diǎn)前按整數(shù)方式讀小數(shù)點(diǎn)前按整數(shù)方式讀,小數(shù)小數(shù)點(diǎn)后一位一位地讀。點(diǎn)后一位一位地讀。12,34

44、5. 6789讀作讀作twelve thousand, three hundred and forty-five point six seven eight nine一個半小時一個半小時 two and a half hours= two hours and a half one and a half hours= an hour and a half數(shù)詞的表示法數(shù)詞的表示法“半半”的表示法的表示法兩個半小時兩個半小時一年半一年半兩年半兩年半 two and a half years= two years and a half one and a half years= a year and

45、a half1. The boy always stays there for _. A. one and half hour B. one and a half hour C. one and a half hours2. The old man drank _ beer.A. two bottles and a half B. two and a half bottleC. two bottle and a halfCA數(shù)詞的表示法數(shù)詞的表示法 “一兩個一兩個”的表示法的表示法“a / an + 單名單名 + or two” 或或 “one or two + 復(fù)名復(fù)名”。Dont worr

46、y. Youll be all right in a day or two.I can only stay here for one or two days. I can finish the work in a week or two.“一兩個一兩個”習(xí)慣上用習(xí)慣上用注意注意: a / an和和one不可調(diào)換。不可調(diào)換。數(shù)詞的表示法數(shù)詞的表示法 倍數(shù)的表達(dá)法倍數(shù)的表達(dá)法一倍一倍once, 兩倍兩倍twice, 三倍三倍three times (三倍或以上用基數(shù)詞三倍或以上用基數(shù)詞times)This box is five times as big as that one.=This box

47、 is four times bigger than that one.Asia is four times as large as Europe.亞洲是歐洲的四倍大。亞洲是歐洲的四倍大。(比歐洲大三倍。比歐洲大三倍。) A + be + 倍數(shù)倍數(shù) + as +原級原級(big, long, wide,) + as +B. A是是B的的 倍倍。表示倍數(shù)的句型表示倍數(shù)的句型 A + be + 倍數(shù)倍數(shù) + 比較級比較級(bigger, higher, longer, wider, )+ than +B. A比比B 大大(長長) 倍。倍。This room is twice bigger than

48、 that one.這個房間比那個這個房間比那個(房間房間)大兩倍。大兩倍。This dictionary is four times thicker than that book.這本詞典比那本書厚四倍。這本詞典比那本書厚四倍。表示倍數(shù)的句型表示倍數(shù)的句型1. This building is _ that building. A. three time as high as B. twice higher than C. three times as higher as2. 我的箱子比你的重六倍。我的箱子比你的重六倍。My box is _ yours. six times heavier

49、 than/ seven times as heavy asBThe elephant is _ the pig. A. heavier ten times thanB. ten times heavier thanC. heavier than ten timesD. ten times than heavierB A + be + 倍數(shù)倍數(shù) + the size (length, width, height, amount) +of + B.=A A + be be + 倍數(shù)倍數(shù) + as as + 原級原級 + as +B. Your room is twice the size of

50、mine. =Your room is twice as large as mine. 你的房間是我的兩倍大。你的房間是我的兩倍大。 This bridge is three times the length of that one. =This bridge is three times as long as that one. 這座橋的長度是那座的三倍。這座橋的長度是那座的三倍。The earth is 49 times the size of the moon. 地球是月球的地球是月球的49倍。倍。表示倍數(shù)的句型表示倍數(shù)的句型This street is four times the w

51、idth of that one.= This street is four times as wide as that one.The new building is four times the height of that one.= The new building is four times as high as that one.數(shù)詞的表示法數(shù)詞的表示法計量表達(dá)法計量表達(dá)法(身高年齡長寬高厚深身高年齡長寬高厚深)four inches wide=four inches in width 4英寸寬英寸寬three feet high=three feet in height 3英尺高

52、英尺高The city wall of Xian is 12 meters wide and 12 meters high This box is 2 kilograms in weight1. 主語主語+be+基數(shù)詞基數(shù)詞+單位詞單位詞(meter, kilometer, foot, inch, kilogram等等)+ 形容詞形容詞.(形容詞形容詞tall, old, long, wide, high, thick, deep等等)2. 主語主語+ be+基數(shù)詞基數(shù)詞+單位詞單位詞 + in + 名詞名詞.(名詞名詞length, width, height, thickness, dep

53、th等等)The Yellow River is 5464 kilometres long.Our classroom is about twelve metres long and eight metres wide.The Great Wall is more than 6000 kilometres long, and between 4 and 5 metres wide.He is more than two metres tall.The mountain is over 1500 metres high.The Ming Tombs are more than 500 years

54、 old. The winner is _. He is an _ boy.A. eight-year-old; eight years oldB. eight years old; eight-year-oldC. eight-years old; eight-year-old He came to China _.A. at the age of 20 B. when he is 20C. at age of 20at the age of +數(shù)詞數(shù)詞 “在在歲時歲時”BAThe river is about _.A. 6,000 meters longB. 6,000-meters-lo

55、ngC. 6,000-meter-longATom is a 10-year-old boy. “基數(shù)詞基數(shù)詞-名詞名詞(-形容詞形容詞)”結(jié)構(gòu)結(jié)構(gòu):這個結(jié)構(gòu)只能放到名詞前作定語這個結(jié)構(gòu)只能放到名詞前作定語; 中間的名詞只能用單數(shù)。中間的名詞只能用單數(shù)。Tom is 10 years old.注意注意: 在在be動詞后動詞后用作表語時用作表語時, ,不能不能用連詞符用連詞符, ,名詞有復(fù)數(shù)。名詞有復(fù)數(shù)。1. a 6-month-old baby 一個一個6個月大的嬰兒個月大的嬰兒2. a 100-year-old tree一棵一棵100年的老樹年的老樹3. a 6,300-kilometer-

56、long river 一條一條6,300千米長的河千米長的河4. a 20-meter-deep lake 一個二十米深的湖泊一個二十米深的湖泊5. _ 18-meter-wide road 一條一條18米寬的公路米寬的公路6. _ 1-hour-long walk 一段要步行一個小時的路程一段要步行一個小時的路程7. _ 800-word composition 一篇一篇800字的作文字的作文 anaan1. a 3-mile walk 一次一次3英里的步行英里的步行2. a 3-hour flight 一次一次3小時的飛行小時的飛行3. a 99-floor building一座一座99層

57、的大樓層的大樓4. a two-month holiday一次為期兩個月的假期一次為期兩個月的假期5. a 3000-member club一個有一個有3000成員的俱樂部成員的俱樂部6. _ 8-kilometer swim一次一次8千米的游泳千米的游泳7. a 16-line poem 一首一首16行的詩行的詩anOur school is only _ walk from here. (2002南京市南京市)A. five-minute B. five minutes C. five minutes D. five minutesEvery morning Mr Smith takes

58、a _ to his office. (2001甘肅甘肅)A. 20 minutes walk B. 20 minutes walkC. 20-minutes walk D. 20-minute walk D比較比較It is ten minutes walk.與與It is a ten-minute walk.DIt is _ walk from here to my school.A. two-hours B. two hours C. two-hour D. a two-hourHe had a _ visit to Canada last month. (2002深圳深圳)A. ten

59、 days B. ten-dayC. ten-days D. ten dayBDHe wrote a _ report.A. 2000-words B. 2000-word C. 2000 words D. 2000 wordKate is _ girl.A. a 18-years-old B. an 18-year-oldC. a 18-year-old D. an 18-years-oldOur teacher told us that we would have a _ holiday after the exam. (2005湖南衡陽市湖南衡陽市)A. two week B. two-

60、week C. two weeks D. two-weeksBBBHarry has just finished writing a _ composition. (2005無錫市無錫市)A. nine-hundred-word B. nine-hundred-wordsC. nine-hundreds-word D. nine-hundreds-wordsThe young woman has _ daughter. (2005貴港欽州來賓市貴港欽州來賓市)A. a two-years-old B. a two-year-old C. two-year-old D. two years ol