2024年中考英语复习数词Numeral课件

Numeral

数词Lesson4NumeralCONTENTS目录01基数词02序数词03数词的用法一、基数词1、基数词概念：2、基数词的构成（了解即可）：1）1－12,独立成词。onetwothreefourfivesixseveneightnineteneleventwelve2）13--19,由3－9+teen构成。14–fourteen特殊拼写:13–thirteen15--fifteen18—eighteen3）21－99(两位数)十位与个位之间有“－”。21twenty-one55fifty-five99ninety-nine表示数目多少的数词.一、基数词4）20－90,以-ty结尾。

60---sixty特殊拼写:20---twenty30---thirty40---forty50---fifty80---eighty5）百—hundred

千—thousand

百万—million

十亿—billion6)101－999,三位数,百位与十位/个位之间加and，十位和个位用“-”连接。101onehundredandone

840eighthundredandforty7)1,000以上数目,从右向左每三位用“，”分开,分别读为thousand,million,billion一、基数词基数词，不难记，找出规律很容易零至十二形各异，一个一个单独记。后加-teen为“十几”thirteen,fifteen看仔细，eighteen只有一个t.表示“几十”要加-ty,twenty,thirty是例外，forty,fifty更厉害，和eighty一样搞例外。表示数字“几十几”，连着符号要切记。若要表示“几百几”，and常把百、十系。还有一点要注意，几百后别把-s立。基数词构成规律二、序数词1、序数词的概念：2、序数词的构成（了解即可）：1）1－3,独立成句first,second,third2）4－19,相应基数词+th,

fourth特殊拼写:fifth,eighth,ninth,twelfth3)序数词缩写——数字＋最后两字母如:1st,2nd,3rd,4th…4)20－90,y变成ie+th,如:twentieth5)21－99,只把个位的基数词变成序数词如:twenty-first表示顺序次序的数词.二、序数词基变序，有规律一二三，特殊记，加th从4起，八去“t”，九去“e”，“ve”要用“f”替，见“y”变成“i”和“e”，词尾加上“th”，若是遇到几十几，只变个位就可以。序数词缩写记清楚，数字后跟两字母。序数词构成规律Attention!(1)序数词作定语,前面要加the;（表示第几）Johnlivesonthefifteenthfloor.如果序数词前已经有物主代词或名词所有格时,不可再加定冠词the.It’sMonday,andit’smyfifteenthbirthday.IsitLily’sfifteenthbirthday,too?(2)有时加a/an,“再一”,“又一”的意思

We’llhavetodoitasecondtime.三、数词的用法1、hundred，thousand，million，billion的特殊用法:①前面有具体数目,hundred,thousand,million,billion不用加s和of；

800(eighthundred)，3,000(threethousand)②表示不确定数目,加s加of.

hundredsof

(数百)thousandsof

(数千)millionsof

(数百万)+名词复数③可以用many/several/afew修饰，severalhundredtourists.口诀：具体数字直接加，不确定时，有s有of三、数词的用法2、时刻读法：表示方法例子整点整点时间，基数词+o’clock7顺读时＋分（几点几分）7:30特殊读法15分钟：30分钟：2:30逆读

当分钟＜30时用past（过）即“分钟＋past＋钟点数”7:20当分钟＞30时,用to（差）即“(60－分钟)＋（钟点数＋1）”6:40当分钟等于30时,用“halfpast＋钟点数’’7:30seveno’clockseventhirtyaquarterahalftwoandahalfhours=twohoursandahalftwentypastseventwentytosevenhalfpastseven三、数词的用法3、课外小知识（了解即可）：October1st,1999(日用缩写,月-日-年)October1,1999(日用数字)/1stOctober,1999日-月-年房间号码和电话号码要一个一个分别读Classroom312 ClassFour,GradeSix（先班级后年级，开头记得都大写）Room3=thethirdroom Unit9=theninthunit三、数词的用法4、小数的用法：3.14159265、百分数的用法：15％: 120％:point点threepointonefouronefiveninetwosixpercent

(百分之……)fifteenpercent onehundredandtwentypercent三、数词的用法6、分数的写法：1/2:

1/4:

1/3:2/3:

3/5:7、“几十”的复数形式：①几十多岁——（分子为基数词，分母为序数词）ahalf/onesecondaquarter/onefourthonethirdtwothirdsthreefifths口诀：子基母序,分子＞1,分母就要加S

in+one's+整基数词的复数形式（twenties,thirties,forties...）eg：

Hediedinhisforties.三、数词的用法②年代——③④in+the+

基数词复数inthenineties

90年代

在20世纪30年代:inthe1930s“基数词+名词”的合成形容词作定语,中间有连字符“-”,当中的名词用单数。

Eg：a3-year-oldgirl =athreeyearsoldgirl表计量——“基数词+度量单位+形容词” eg.Theclassroomis7meterslong,6meterswide.三、数词的用法8、加减乘除表达（了解即可）：加plus,and或add2+3=5Twoplusthreeisfive. Twoandthreeisequaltofive.Twoandthreemakesfive. Ifweaddtwoto/andthree,wegetfive.减minus/substract10-6=4Tenminussixisfour.乘times(介词)或multiply3×4=12Threetimesfouristwelve.Multiplythreebyfour,wegettwelve.Threemultipliedbyfourmakestwelve.除divide的过去分词形式16÷4=4Dividesixteenbyfour,wegetfour.Sixteendividedbyfourisequals/gives/makesfour.Exercise一、单项选择：1、Wegaveawaysix______bookstotheschoollibrarylastyear.

A．hundreds

B．hundred C．hundredsof

D．hundredof2、Couldyoutellushowtoreadthenumber18,306,211?A.Eighteenmillion,

threehundredandsixthousands,

twohundredeleven.B.Eighteenmillion,

threehundredandsixthousand,

twohundredandeleven.C.Eighteenmillions,

threehundredsixthousand,

twohundredsandeleven.√√Exercise3、About____oftheworkersinthefactorywereborninthe______.

A．twofifths;1980

B．twofifths;1980s

C．secondfive;1980s

D．two-fifth;1980s4、Thenumberofthestudentsinourgrade________about________,andthree________ofthestudentsinourschoolaregirls.

A．are;sixhundreds;fifths

B．is;sixhundred;fifths

C．is;sixhundred;five

D．are;sixhundreds;five5、Theheroofthestoryisanartistinhis________.

A．thirtieth

B．thirty C．thirty's

D．thirties√√√Exercise6、TheEiffelTowerinParisisabout_______.

A.320-meter-tall B.320-metertall

C.320metertall D.320meterstall7、Thissongwasverypopular______.

A.in1990's B.inthe1990s C.inthe1990s'

D.atthe1990s8、—What’sthetime?

—It’s________.

A．aquarterpastnine

B．fifteentonine

C．fifteenpasteight√√√Exercise9、—Susan,howmanywomenteachersarethereinyourschool?

—Inourschool,_______oftheteachers_______womenteachers.

A．thirdfourth;are

B．thirdfourth;is

C．threefourths;is

D．threefourths;are10、JennywillcometoChinafor_____timenextmon