小升初数词（讲义）译林版英语六年级下册

数词考查重点：1.

基数词；2.

序数词；3.

分数。数词的分类：数词分为基数词和序数词。基数词表示数目的多少。序数词表示事物的先后顺序，往往与定冠词the连用。考向一：基数词的构成(1)0—12单独记。如：

zero,one,two,three等。(2)13—19的词尾都是teen。如：fourteen,seventeen等，但13—thirteen，15—fifteen，18—eighteen需要特殊记。(3)20以上的整十的基数词均以ty结尾。20—twenty，30—thirty，40—forty，50—fifty，80—eighty等。(4)＂几十几＂要加连字符号＂-＂。48—forty-eight,97—ninety-seven等。(5)＂几百几十＂或者＂几百几十几＂在＂百＂后加and。156—onehundredandfifty-six,509—fivehundredandnine。(6)四位数或者四位数以上的基数词的拼写规律：用逗号从右往左每三位加一个逗号，第一个逗号读作thousand(千)，第二个逗号读作million(百万)，第三个逗号读作billion(十亿)，hundred后莫忘＂and＂。3,610＝threethousandsixhundredandten；94,295＝ninety-fourthousandtwohundredandninety-five；考向二：序数词的构成first1stsecond2ndthird3rdfourth4thfifth5thsixth6thseventh7theighth8thninth9thtenth10theleventh11thtwelfth12ththirteenth13thfourteenth14thfifteenth15thsixteenth16thseventeenth17theighteenth18thnineteenth19thtwentieth20thtwenty-first21sttwenty-second22ndthirtieth30thfortieth40thfiftieth50thsixtieth60thseventieth70theightieth80thninetieth90thhundredth100thonehundredandfirst101st(1)＂第一＂、＂第二＂、＂第三＂分别是first,second,third。(2)＂第四＂到＂第十九＂除了fifth,eighth,ninth,twelfth是特殊的拼写外，其余的都在相应基数词后面加＂th＂构成。如：fourth。(3)20以上的整十的序数词由相应的基数词变y为i，再加＂-eth＂。如：thirty→thirtieth;fifty→fiftieth。(4)第一百hundredth;

第一千thousandth;

第一百万millionth。(5)20以上的非整十的基数词变序数词时，只变化个位数。如：twenty-one→twenty-first;onehundredandone→onehundredandfirst。考向三：分数的表达法分数是由基数词作分子，序数词作分母构成的。除了分子是＂1＂的情况外，序数词都要用复数。►1/3onethird7/9sevenninths【注意】一些特殊的分数表达法：►ahalf

二分之一

aquarter=onefourth

四分之一

threequarters=threefourth

四分之三数词基变序口诀：基变序，有规律，词尾加上th;一、二、三，特殊记，词尾字母t、d、d;八减t,九减e，f来把ve替；单词ty做结尾，ty变成tie;若是碰到几十几，只变个位就可以。一、在横线上填写合适的数词，把下面的算术题补充完整。1.seven+=twelve2.three+=twelve3.-four=twelve4.÷two=twelve5.three×five=6.sixty-fifteen=7.eight×seven=8.÷seven=two二、用适当的数词填空。1.Therearedaysinaweek.2.Thereareseasonsinayear.3.Mondayisthedayofaweek.4.JuneisChildren’sDay.5.TherearedaysinAugust.三、找规律，填数词。threethirtyfourthfifteensixtyseventeennine随堂练习Thereare________peopleinmyfamily.(

)随堂练习A．8thB．eightC．third2.April5thishis________birthday.(

)A．thirdB．threeC．nine3.Augustisthe________monthoftheyear.(

)A．sevenB．ninthC．eighth4.Fiveandsixis________.(

)A．elevenB．tenC．tenone5.Theticketis$10andhalfpriceonWednesday.Soit’s________onWednesday.(

)A．$15B．$8C．$56.—I’m15yearsold.Howoldareyou?(

)

—I’molderthanyou.I’m_______yearsold.A．16B．15C．147.Mike’ssisteris_______.(

)A．fouryearoldB．fourthyearsoldC．fouryearsoldD．four-years-old8.Wecantakethe_______bustothemuseum.(

)A．No.1stB．No.1C．1stNo.D．1No.9.Septemberis______monthoftheyear.(

)A．nineB．ninethC．theninthD．thenineth10.TheYellowRiveris________longestriverinChina.(

)A．thefirstB．thesecondC．firstD．thethird11.__________ofthestudentsareYoungPioneersinourclass.(

)A．TwothreeB．TwothreesC．TwothirdsD．Secondthree12.---HowmanytimeshaveyoubeentoJapan?(

)

---_________.A．ForthethirdtimeB．ThreetimesC．athirdtimeD．Forthreetimes13.—Howsoonwillyoufinishreadingthebook?

—In_______.(

)A．oneortwoweeksB．oneweekortwoC．aweekandtwoD．aortwoweeks14.Marywasborn________.A．in1985,June1B．onJune1,1985C．atJune1,in1985D．inJune1,198515.Howoldisyourfather?

Heis_______.(

)A．fourty-oneB．foutyoneC．forty-oneD．fortyone课后练习写出下列节日的准确日期

1.Children’sDayisonthe

___________

ofJune.

2.TheWomen’sDayisonthe

_________

ofMarch.

3.NewYear’sDayisonthe

__________

ofJanuary.

4.NationalDayisonthefirstdayof

__________.

5.TheOlympicGameswasopenedontheeighthdayof

_________

inBeijing.课后练习二、完成句子1.Chineseismy

______

(one/first)class.2.MybirthdayisonJ____

f____.

3.ThisisMay’st________

birthday,youcanseetwelvecandlesonthecake.4.Thereare

_________

daysinaweek,andMondayisthe

_________

dayoftheweek.三、按要求变化下列单词

five(序数词)

___________

twelve(序数词)___________

eight(序数