数词-中考英语语法专项复习

数词一一中考英语语法专项复习中考英语语法专项复习一一数词语法讲解、分类数词有基数词和序数词两种

1、基数词和序数词基数词表示数目序数词表示顺序2

一、基数词的构成具体数目L onehundred scientiststwo thousand astronauts twomillion planes.大概数目2hundreds ofscientists thousandsof astronautsmillions ofplanes以上的数字，从后往前数每三位加一个逗号，〃第一个逗号前为千第二个逗号前

3.1000thousand,为百万第三个逗号前为十亿英语中无万〃这个词，我们可以用几十个千million,billion”表示几万，“几百个千”表示几十万〃如thousand thousand274,350=two hundred andseventy-four thousand,three hundredand fiftyo

二、序数词的构成英语的序数词基本变法⑴在基数词后加th,⑵结尾的改为-用⑶结尾的改为-他的，⑷熟记特殊词we-ty口诀特殊记，加从起，少去千万别忘记123th4839e,first,second,third,fourth...eighth,ninth逢逢变512,ve ffifth,twelfth至要变若是几十几，前基后序别倒位

三、数20II90,v ietwentieth,ninetieth ninety-first词的应用.时刻的表示小时、点钟、分钟、秒钟要用基数词1

①几点钟用基数词加可省略oclock ollock

②“几点过几分”,分钟〃用介词如；；430past715—a quarterpast seven

③“差几分几点用介词如to745—a quarterto eighto

④日常生活中的时间读法常常简化，直接按基数词的顺序读如705-seven ofive.年月日的表示年用基数词，日用序数词如年月日写作；读作:

2.199868June8,1998June the或eighth,nineteen ninety-eight theeighth ofJune,nineteen ninety-eighto世纪、年代表示法在世纪年代

3.2090in编号的表示

4.第一课；1Lesson One=the firstlesson2Bus No.3=the No.3bus3路公共汽车；Bus No.13f BusNumber Thirteen表示住所时不用如3No.Room105f Roomone0five;@如果编号的数词比较长，一般用基数词如第页；Page457457P.5^Page Five;

⑤电话号码，用基数词,如3855633—three eightfive fivedouble fivesix threethree分数的表达分子用基数词，分母用序数词，分子大于〃，分母则加〃如

5.1“s；1/3—one third,2/3----------two thirds另外或或1/2-iaonehalf;1/4--one fourthaonequarter;3/4--.用法:Three-eighths of the earthpolluteby humans.Four fifthsof thespace shuttlesmakein theUSA.数词一一中考英语语法专项复习Half ofthe workdoso far,so halfthe studentsbefree now.80%of thesecasescure orprevented lastyear..表示“半个，几个半”，如6half an hour,one/anhourand a half=,two hoursand ahalf=表示有小数的词用基数词

7.

5.5-—five pointfive表示百分数

8.5%---five percentper cent,

0.8%----zero pointeight percentper cent.其他用法基数词+单数名词+形容词构成合成形容词如

9.1一个五岁的男孩；一座米长的桥；a five-year-old boy800an800-metre-long bridge具体数词+等如我家离学校大2metre s/kilometre s/kilo s+long/high/tall/deep/away约有米远850有具体数字不用My houseis eighthundredandfifty metersaway fromthe school.far表示“几十岁”，在他三十几岁时3eg.补充练习

1.Now,everyone,please turnto Pageand lookat picture.；；A.Twelve thefifth B.Twelfth thefifth；；C.Twelve fiveD.Twelfth five•一2Which numberis thebiggest ofthe four—.A.One thirdB.Two thirdsC.A half D.A quarter

3.In orderto findbetter job,she plannedto learnsecond language.；；；；A.the aB.the/C.a theD.a a什

4.About ofthe earthcovered withwater,but wehave lessesh water.；；A.three quarteris B.three quartersis；；C.three quarterare D.three quartersare

5.—How longis thebridge—Its.A.300-meter-long B.300-meters longC.300meters longD.300meter long

6.The numberofthestudents inour gradeabout,and of them aregirls.；；；；A.are sixhundreds two-thirds B.is sixhundred two-third；；；；C.is sixhundred twothirds D.are sixhundreds twothird一

7.Ang Lee,a Chinesedirector,won theBest Directoragain inhis.——How greathe is!It ishis timeto winan Oscar.；；；；A.fifty twiceB.fiftieth secondC.fifties secondD.fifties two

8.girls tookpart inthe HappyGirl Competitionbut onlya fewofthemsucceededA.Million ofB.Many millionof C.One millionof D.Millions of

9.We havestayed atthis schoolfbr.A.Two yearsand halfB.Two andhalf ayearsC.Two yearsandahalfD.Two andahalfyear。