中考英语专项练习-----数词

1、基数词的构成及用法构成 一、基数词的构成 11-12的表述1-12各有各的形式，即one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve。 213-19的表述13-19的数字皆以-teenti：n结尾，其中，fourteen，sixteen，seventeen，eighteen和nineteen分别由four，six，seven，eight，nine加后缀-teen变成的，eighteen中只保留一个t。thirteen，fifteen分别由three和five转花而来。 320-90数字的表达20-90的数字皆以-ty结尾

2、，其中，sixty，seventy，eighty，ninety分别由six,seven,eight和nine加后缀ty构成，eighty中只保留一个t。其他同上。 420-99之间的数字的表达20-99之间的数词须在十位和个位之间加连字符“-”，如twenty-five。 5百位以上的数字的表达以及读在表达百位以上的数字时，必须在百位，十位和个位之间加and，在读音时也应读上and，如：104可表达为one hundred and four，486读作four hundred and eighty-six。 6 “万”的表达.英语中没有万和亿单词，只有百（hundred），千（thousand

3、），百万（million），十亿（billion）。英语中表示“万”时，用10千。如：forty thousand四万。表示“亿”时需用百万来表示。如：two hundred million两亿。 7 7.1，000以上的数字，从后向前数。每三位数加“，”。第一个“，”前为thousand,第二个“，”前为million,第三个“，”前为billion.3,333,333,333读为three billion,three hundred and thirty-three million, three hundred and thirty-three thousand,three hundred

4、 and thirty 8.hundred,thousand,million 前有若有具体数字时，要用单数形式，但如果他们后面有of ,则要用复数形式。同时，前面不能再加具体的数目。二、基数词的用法(1)基数词在句中主要用作主语、宾语、定语、表语、同位语，例如：thirtyofthemarepartymembers.（主语）-howmanywouldyoulike？-three，please（作宾语）thenineboysarefromtianjin.（定语）sixplusfouristen.（表语）wefourwillgowithyou.（同位语）(2)表示一个具体数字时，hundred,t

5、housand,million不用复数；表示一个不确定数字时则用复数。例如：ourcountryhasapopulationof1,300millionpeople.therearethreethousandstudentsinourschool.afterthewar,thousandsofpeoplebecamehomeless.maizeisthemostimportantfoodcropformillionsofpeopleintheworld.theyarrivedintwosandthrees(3)表示“十”的数词的复数形式可用来表示人的岁数或年代，例如：heisinhisearl

6、ythirtieshediedstillinhisfortiesthistookplacein1930s(4)表示时刻用基数词。例如：wegetupatsix.theworkersbeginworkateight.表示“几点过几分，用past,但须在半小时以内。例如：ten past ten, a quarter past nine, 表示“几点差几分用to,但分数须在半小时以上。例如：twentytonineaquartertoten表示几点几分用基数词。例如：sevenfifteen,eleventhirty,ninetwenty序数词的构成及用法一、序数词的构成1第一，第二，第三分别为f

7、irst,second,third.2第四到第十九都有相应的基数词加the构成，有几个特殊，即fifth,eighth,ninth,twelfth.3第几十把y改为i加eth.twentieth,ninetieth4序数词之前要加定冠词或代词。但序数词表名词时，可不用冠词。whowonfirst?序数词表“再一”，“又一”时不用定冠词，只需在前面加ahefailedonce.thenhetriedasecondtime.5序数词的缩写形式是在数字后面直接加上序数词最后两个字母构成。1st,2nd,3rd,4th,21st,22nd,34th6100以上的序数词的表示方法第100为100th(读

8、作onehundredth),101st读作onehundredandfirst,其他的依次类推二.序数词的用法（1）序数词主要用作定语，前面要加定冠词，例如：thefirsttruckiscarryingafootbasketsjohnlivesonthefifteenthfloor（2）序数词有时前面可加不定冠词a来表示再，又这样的意思，例如：wellhavetodoitasecondtimeshalliaskhimathirdtime？whenisatdown，afourthmanrosetospeak（3）注意不规则形式：one-first,two-second,three-third

9、,five-fifth,eight-eighth,nine-ninth,twelve-twelfth。（4）表示年，月，日时，年用基数词表示，日用序数词表示。例如：1949年十月一日读作:october(the)first,nineteensixty2004年九月十日读作：september(the)tenth,twothousandandfour（5） 表示分数时，分子用基数词表示，分母用序数词表示。分子大于1时，分母加-s。例如：threefourths,onesecond,twofifths（6）序数词缩写形式：first1stsecond2ndthird3rdfourth4thtwen

10、ty-second22nd分数的表示法1分数的表示法：分子用基数词，分母用序数词，当分子大与一时，分母用复数形式。2|3twothirds3|5threefifths2整数与分数之间用and连接。one/anhourandahalf3分数的用法结构为“分数+of+the+名词”表示“。的几分之几”，当其作主语时，谓语动词的单复数取决于短语中名词的复数1. about_studentsinourclasscandescribethatplaceinenglish.2. a.three-fifthsb.three-fifthc.third-fived.third-fifths2.nine_poun

11、dsaweek?thatsverygood.a.hundredofb.hundredsofc.hundredsd.hundred3.weoftenhavesportsafterclass,andiliketoplay_basketball.a.ab.anc.thed.不填【中考演练】一.单项填空1.thismorningihad_eggandabottleofmilkformybreakfast.a.anb.ac.thed./2.-whatsthematterwithyou?-icaught_badcoldandhadtostayin_.a.a;/b.a;thec.a;ad.the;the3.

12、-haveyouseen_pen?ileftitherethismorning.-isit_blackone?ithinkisawitsomewhere.a.a;theb.the;thec.the;ad.a;a4._sunisshiningbrightly.a.ab.anc.thed./5.thereis_“h”inthewordhour.a.ab.thec.and./6.didyouenjoyyourstayinxian?yes.ihad_wonderfultime.a.ab.anc.thed./7._sunisbiggerthan_earth.a.a;theb.a;anc.the;and.

13、the;the8.thereis_appleandsomepearsonthetable.a.theb./c.ad.an9.davidhas_cat.itsverynice.a.ab.anc.thed./10. imreading_novel.itis_interestingstory.a.a;anb.a;ac.the;thed./;an11.itissaidthatsarshaskilledmorethan_peopleworldwide.a.threehundredsb.threehundredsc.threehundredsd.threehundred12.-howmanyworkers

14、arethereinyourfactory?-therearetwo_.a.hundredsb.hundredc.hundredofd.hundredsof13.-whichisthesmallestnumberofthefour?-_.a.two-thirdsb.ahalfc.aquarterd.three-fourths14.-whatdoyouthinkofawar,liming?-ivenoidea.butitsafactthat_peoplehadtoleavetheirhometownduringthewaroniraq.a.threethousandsb.thousandofc.

15、thousandsofd.severalthousands15.weallthinkthatthe_centurywillbringusmorehopes.a.twenty-firstb.twentieth-firstc.twenty-oned.twentieth-one16.-canyouwritethenumbereighty-fivethousand,sixhundredandtwenty-six?-yes,itis_.a.856620b.85626c.58662d.5862617.whenwastheprcfounded?itwasfoundedon_.a.july1,1921b.oc

16、tober1,1949c.august1,1927d.may1,192218.iwas8yearsoldwhenmyfatherwas31.thisyearmyfatheristwicemyage.howoldami?a.21b.22c.23d.2419._chinesearelookingforwaystolearnenglishwellbeforebeijing2008olympics.a.thousandb.thousandsc.thousandofd.thousandsof20. bothofthetworulersarebroken.iwanttobuya_one.a. threeb

17、.thirdc.forthd./数词跟踪练习1. there are _ days in a year. a. three hundreds and sixty-five b. three hundred and sixty five c. three hundred and sixty-five d. three hundreds and sixty-five2.the volunteers sent _ books to a mountain village school on childrens day. a. two hundreds of b. two hundred of c. t

18、wo hundreds d. two hundred3.i went to college in _ and began to work in _.a. the 1990s; twentyb. the 1980s, twentiethc. 1980; my twentiesd. 1980s, my twenties4.audrey hepburn passed away peacefully in her_ (sixty).5. the earthquake happened on the _(20) of april.6. december is the _(twelve) month of

19、 a year.7.we had a big family celebration on my grandpas _(ninety)birthday.8. on january 9th this year, london underground celebrate its _(one hundred and fifty) birthday.9.two thirds of the water_(be)polluted.10.two thirds of students _(like)football.11. about _of the students in grade nine this ye

20、ar were born in the_.a. three five; 1996. b. three fifths; 1990s c. third fifth; 1997. d. third fifths; 1990s 12. there are days, in a week and tuesday is _ day of the week. a. seven ,third b. seven ,the third c. seventh ,three d. the seventh, three 13. please turn to page _ and look at the _ pictur

21、e in this unit.a. twentieth; one b. twenty; onec. twentieth; first d. twenty; first14. - how was your weekend? - great! it was my grandfathers _ birthday. we enjoyed ourselves. a. seventy b. seventieth c. the seventieth d. seventeenth15. the chairperson received about three _ applications to join th

22、e bird watching club. a.hundred b. hundreds of c. hundred of d. hundreds16. he wrote his _ novel when he was _. a. five; fiftiesb. fifth; fifty c. fifth; fiftieth17. _ visitors come to xingyi during may day holidays every year. a. thousands of b. two thousands c. thousand of d. thousand18. about _of the students in grade nine this year were born in the_.a. three five; 1996.b. three fifth