Unit1DreamhomesGrammar1-_______2-_________3-_______4-_________5-_______6-_________7-_______8-_________9-_______10-_________onetwothreefourfivesixseveneightnineten一、Cardinalnumbers基數(shù)詞表示人或物數(shù)量的詞為基數(shù)詞。11-________12-__________13-________15-__________18-________19-_________20-________30-_________40-________50-_________100-___________1,000-__________10,000-____________________100,000-_______________________1,000,000-______________twelveelevenfifteenthirteeneighteennineteentwentythirtyfortyfiftyonehundredonethousandtenthousandonehundredthousandonemillionHowdowesayit?twenty-sixfourhundredandsixty-sevensixthousand

twohundredandfifty-oneeightthousandandtwenty-threethreemilliononehundredthousandandsix264676,2518,0233,100,006Trytosaythem:

2,005

19,724

743,2107,766,187twothousandandfivenineteenthousandsevenhundredandtwenty-foursevenhundredandforty-threethousandtwohundredandtensevenmillionsevenhundredandsixty-sixthousandonehundredandeighty-sevenTrytowritethem1.onehundredandtwenty-five2.twothousandthreehundredandeleven3.tenthousandandeleven4.onehundredthousandonehundredandtwo5.twomillionthreehundredandtwo6.ninemillioneightthousandsevenhundredandeight1252,31110,011100,1022,000,3029,008,7081.表示人或物的數(shù)量

(56students)2.表示班級(jí)、年級(jí)、房間號(hào)、公交車號(hào)等

(Class2,Grade7,Room608,BusNo.1=theNo.1bus)3.表示電話號(hào)碼、車牌號(hào)、門牌號(hào)、價(jià)格、年份等

(87536891,56StarRoad,￥100,1998)4.復(fù)數(shù)表示年齡、年代

(inone’stwenties在20多歲,inthe30s在30年代,inthe1930s在20世紀(jì)30年代)基數(shù)詞的用法：5.表示人或物的年齡、大小、長(zhǎng)度、高度等：基數(shù)詞+單位名詞+形容詞(2monthsold,40mileslong,2meterstall)6.hundred,thousand,million的特別用法：

a.前面有數(shù)詞，則不用其復(fù)數(shù)，如twohundred,fivethousand等。

b.表示上百、上千、上百萬(wàn)等不確定的數(shù)量時(shí)，用hundredsof,thousandsof,millionsof

來(lái)表示。Herearesometelephonenumbers.Canyoureadandwritethem?1593269017887326594one,five,nine,three,two,six,nine,o,one,seven,eighteight,seven,three,two,six,five,nine,fourHerearesomenumbersonthecheques(支票）.Canyoureadandwritethem?￥7,493.00seventhousand,fourhundredandninety-threeyuan$

12,321.00twelvethousand,threehundredandtwenty-onedollarsHerearesomeyears.Canyoureadandwritethem?15461785199920072013fifteen,forty-sixtwenty,thirteen/twothousandandthirteenseventeen,eighty-fivenineteen,ninety-ninetwothousandandsevenIamthesecondchildofmyfamily.ItsbirthdayisonthefifthofJune.Theflatisontheseventhfloor.二、Ordinalnumbers序數(shù)詞表示順序的詞為序數(shù)詞。通常用于表示日期、編號(hào)、樓層等。CardinalnumbersOrdinalnumbers1one1st=

first2two2nd=second3three3rd=third4four4th=fourth5five5th=fifth6six6th=sixth7seven7th=seventh8eight8th=eighth9nine9th=ninth10ten10th=tenth11eleven11th=eleventh12twelve12th=twelfthCardinalnumbersOrdinalnumbersthirteen13th=thirteenth14fourteen14th=fourteenth15fifteen15th=fifteenth16sixteen16th=sixteenth17seventeen17th=seventeenth18eighteen18th=eighteenth19nineteen19th=nineteenth20twenty20th=twentieth21twenty-one21st=twenty-first22twenty-two22nd=twenty-second23twenty-three23rd=twenty-third30thirty30th=thirtieth（一）序數(shù)詞的構(gòu)成：1.基數(shù)詞+th2.以

ty結(jié)尾，把y改為ie+th3.多位基數(shù)詞，最后一個(gè)基數(shù)詞改為序數(shù)詞，其他仍然為基數(shù)詞4.特殊形式：one–first,two—second,three—third,five—fifth,eight—eighth,nine—ninth,twelve--twelfth（二）序數(shù)詞的用法：1.序數(shù)詞前通常要加the(thethirdfloor)2.序數(shù)詞表示日期1May/1stMay–thefirstofMayMay1/May1st–Maythefirst3.序數(shù)詞用作副詞，前面不加thecomefirstintheexam4.

有其他限定詞修飾(物主代詞、名詞所有格或指示代詞this，that等)，不加the(his/Tom’stenthbirthday)Canyoureadandwritethefollowingphrases?January1February2March23April4May15

June26①Januarythefirst②thefirstofJanuary

①Februarythesecond②thesecondofFebruary

①M(fèi)archthetwenty-third②thetwenty-thirdofMarch

①Aprilthefourth②thefourthofApril

①M(fèi)aythefifteenth②thefifteenthofMay

①Junethetwenty-sixth②thetwenty-sixthofJuneAnswers:(2)fifteenth(1)seventh(3)fourth(4)second(5)ninth(6)twelfthExerciseB2Translation1.Tom是他家的第二孩子．２.我的