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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,数词,基数词,序数词,数词使用方法,第1页,1,、基数词组成,（,1,）,1-12,基数词是独立单词，有其各自形式。,one two three,four five six,seven eight nine,ten eleven twelve,第2页,（,2,）,13-19,基数词以,-teen,结尾。,thir,teen,four,teen,fif,teen,six,teen,seven,teen,eigh,teen,nine,teen,第3页,（,3,）,20-90,整十位数基数词以,-ty,结尾。,twen,ty,thir,ty,for,ty,fif,ty,six,ty,seven,ty,eigh,ty,nine,ty,第4页,（,4,）,21-90,非整十位数表示法，是在十位数,和个位数之间用连字符“,-,”。,twenty-one 21,thirty-three 33,e.g.53,64,75,99,第5页,（,5,）百、千、百万、十万表示方法。,N,00,hundred,N,000,thousand,N,000,000,million,N,000,000,000,billion,e.g.,100,one hundred,2,000,two thousand,3,000,000,three million,4,000,000,000,four billion,第6页,（,6,）,101-999,基数词表示法，是在百位数和十位数之间，或在百位数和个位数之间加,”and”.,e.g.one hundred and two 102,two hundred and,sixteen,2,16,four hundred and four 404,513,222,363,999,第7页,（,7,）,1000,以上数目表示方法。,e.g.,2,004,two thousand and four,34,228,thirty-four thousand,two hundred,and twenty-eight,725,369,seven hundred and twenty-five,thousand,three hundred and sixty-nine,17,657,400,1,214,000,000,第8页,巧学妙记,一至十二词各异，一个一个单独记，前轻后重（,teen,）是十几，前重后轻（,ty,）是几十,fourteen,forty,分清楚，,thirteen,thirty,看仔细，,eighteen(eighty),只有一个,t,几十几和几百几连字符、,and,莫丢弃,第9页,Exercise,1,、,-Excuse me,how does this number 20,135 read?,-It read,.,A.twenty thousands one hundred and thirty-five,B.twenty thousand one hundred and thirty five,C.twenty thousand one hundred and thirty-five,D.twenty thousands,one hundred and thirty-five,第10页,Exercise,2,、,-Bob,can you write the number seven hundred and eighty thousand and thirty-two?,-Yes,it is _.,78,032 B.7,832 C.7,032 D.780,032,第11页,2.,基数词利用,（,1,）表示详细数目时，,hundred,，,thousand,，,million,等,用单数,;,e.g.five hundred eight hundred,(2),表示不确切数目时能够用复数形式，与,of,连用表示,“数以,.,计”；,hundreds of,成百上千,thousands of,成千上万,e.g.Thousands of trees must be planted every year.,第12页,(3),基数词复数形式可用来表示人岁数和年代。,年代：,in the,+,年代,+s(,或,s),表示“在,世纪,年代”,in ones+,整,10,数复数形式 表示一个不确定年纪,e.g.He went to the United States in his twenties.,That was in the early forties,第13页,(4),由基数词和名词合成形容词作定语时，其中名词只用单数。,e.g.She wrote a,two-thousand-word,composition,last night.,Claude is an,eleven-year-old,boy.,I m a eighteen-year-old girl.,第14页,Exercise,1,、,How many people will come to Beijing next,year?(,芜湖,),Its hard to say,_ people,I think.,million of,B.millions of,C.three millions,D.three millions of,第15页,Exercise,2,、,In the past twenty years,many tall buildings have been built in our city.look!This is,a,_.,(09,年天津中考,),A.70-floor building,B.70-floors building,C.70-floor buildings,D.70 floors building,第16页,2.,序数词组成,基数词,one,two,three,fi,ve,eight,nine,Twelve,序数词,first,second,third,fif,th,eight,h,nin,th,twelf,th,（,1,）第一,第十九组成,。,第17页,除第一，第二，第三，第五，第八，第九，第十二为特殊形式，其它序数词均由其对应基数词加后缀,-th,组成。,four four,th,six six,th,seven seven,th,eleven eleven,th,thirteen thirteen,th,fourteen fourteen,th,fifteen fifteen,th,sixteen sixteen,th,seventeen seventeen,th,eighteen eighteen,th,nineteen nineteen,th,第18页,（,2,）整十数字序数词组成方法：将对应基,数词结尾,y,变,i,，再加,-eth.,e.g.twent,y,twenti,eth,thirt,y,thirti,eth,fort,y,forti,eth,fift,y,fifti,eth,sixt,y,sixti,eth,sevent,y,seventi,eth,eight,y,eighti,eth,ninet,y,nineti,eth,第19页,（,3,）表示“几十几”时，十位数基数词不变，只把个位数变成序数词即可。,e.g.36 thirty-six,第,36 thirty-sixth,98 ninety-eight,第,98 ninety-eighth,第,55 fifty-fifth,第,74 seventy-fourth,第,88 eighty-eighth,第,1-99,第20页,（,4,）百，千，百万等序数词在词尾加,-th,。,e.g.,第一百,hundred,th,第一千,thousand,th,第一百万,million,th,第十亿,billion,th,若是多位数，则前边数用基数词，末尾数用序数词。,e.g.,第,101 one hundred and,first,第,199 one hundred and ninety-ninth,第21页,（,5,）序数词缩写形式是由阿拉伯数字加上序数词最终两个字母组成。,e.g.fir,st,-1st seco,nd,-2nd thi,rd,3rd,fourth-4,th,twelfth-12t,h,twenty-fir,st,21 st,forty-fift,h,45 th,one hundred and fifty-thi,rd,153 rd,第22页,Exercise,1,、,-How old is your son?,-,.We had a special party for his,birthday last Sunday.,A.Nine;ninth B.Nine;nine,C.Ninth;nine D.Ninth;ninth,第23页,2,、,I think that the,century(,世纪,)will bring us more hopes.,A.twenty-one,B.twentieth-first,C.twenty-first,D.twentieth-one,第24页,2.,序数词使用方法,(,1,）在使用序数词时，通常前面要加定冠词,the.,e.g.The second lesson is more difficult,than the first.,第25页,(2),序数词前面出现不定冠词,a/an,时，表示“再一，又一”。,e.g.,We,ve,tired it three times.,Must we try it,a,fourth time,？,His parents have,two,children,but they want a,third,one.,第26页,(3),序数词前有物主代词或其它修饰语时不用任何冠词。,e.g.This is,my,first,job.,Mrs.Blacks,second child called Lucy.,第27页,(3),基数词表次序，置于名词之后；序数词表次序，置于名词之前，且与,the,连用,Part Two-the Second Part,Lesson Seven-the Seventh Lesson,page 48-the forty-eighth page,Room 302,World War II,第28页,Exercise,1,、,I got a good present on my,birthday,and I like it very much.,A.fifteen,B.fifteenth,C.the fifteen,D.the fifteenth,第29页,2,、,-I hear your pen friend is visiting Lianyungang again.Is it the,time for him?,-Yes,and he will come for a third time next spring.,first,B.second,C.third,D.fourth,第30页,3,、,There are,days in June and,day is,Childrens Day.,A.thirty;the second,B.thirty;first,C.thirteen;the first,D.thirty;the first,第31页,4,、,There are _ people in my family.We live in,the _ floor in a tall building.,A.five;six,B.fifth;sixth,C.fifth;six,D.five;sixth,第32页,5.We are going to learn _next week.,Lesson Twelve,B.Lesson Twelfth,C.Twelfth Lesson,D.the lesson Twelfth,第33页,3,、数词利用,1.,表示时间,（,1,）先读钟点数,后读分钟数。,e.g.10:10 ten ten,4：25,four,twenty-fiv,e,6,：43,six forty-three,第34页,(2),用介词,past,表示几点过几分（不超出半时）；用,to,表示差几分到几点。,e.g.4:20 twenty,past,four,8:42 eighteen,to,nine,60-42=18,9:50 ten,to,ten,10:10,ten,past,ten,第35页,(3),整点直接用（,+oclock,）表示。“半点钟”,half,，一刻钟用,a quarter,。,e.g.6:00 six oclock,7:15,a quarter past seven,8:30 half,past,eight,第36页,Exercise,1.,4,:,45,2.8:17,3.11:58,4.9:56,第37页,2.,表示年、月、日,(1),年份,1949,nineteen forty-nine,twenty hundred and five,two thousand and five,1800,eighteen hundred,第38页,（,2,）日期,4月10日,April 10,April,10,th,10,th,Apri,l,年,9,月,1,日,September 1,September 1,st,1,st,September,英语中普通用,月、日、年,或,日、月、年,来表示。日期能够用基数（读做序数词）。,第39页,Exercise,1.1998,2.,3.1999,年,3,月,3,日,4.,年,7,月,24,日,第40页,3.,表示分数,(1),分数表示 分子,1,分母复数,one,half,one,third,two third,s,one quarter,three fourth,s,/three,quarter,s,第41页,one,and,two thirds,ten,and,three fifths,第42页,meter,four fifths meter,meter,s,two and three,fourths,meters,第43页,（,2,）分数使用方法,“分数,+of+,名词,/,代词”作主语时，,谓语动词单复数取决于名词。,e.g.,Two thirds of the,students,are,boys in my class.,One half of her,money,is,spent,on books.,第44页,Exercise,1.About _ of the workers in,the clothes factory are women.,A.third fifths,B.third fifth,C.three fifths,D.three fifth,第45页,2.We all know that _ of,the earth _ covered by sea.,A.three fourth;is,B.three fourths;is,C.three fourths;are,D.third four;is,第46页,4.,倍数,表示,三或三倍,以上倍数用“基数,词,+times,”。,e.g.This apple is,twice,as large as,that one.,This room is,three times,larger than,that one.,第47页,5.,数词前加,every,，表示,“每一段时间或每隔一,段时间。,e.g.,every,ten,days,每十天,every,ninth,day,每隔九天,every,four,weeks,每四个星期,every,third,week,每隔三个星期,第48页,6.,表示小数和百分数,(1),小数用基数词来表示，以小数点为界，左边数字为一个单位，表示整数，数字合起来读；小数点右边数字为一个单位，表示小数，数字分开读。,e.g.,1,.03,one point,o,three,zero,10.23,ten point two three,25.67,twenty-five point,six seven,第49页,(2),百分数,百分数用,“基数词,+,percent,”表示,。,e.g.,50%,fifty percent,34.67%,thirty-four point,Six seven percent,0.12%,zero point one,two percent,第50页,7.,排列次序,基数词和序数词都能表示排列次序。,事物名词,+,基数词,the+,序数词,+,事物名词,e.g.,第一部分,Part one=the first part,第一课,Lesson one=the first lesson,第三组,Group three=the third group,第51页,0.49 point four nine,1.5 one point five,8.67 eight point six seven,30.6 thirty point six,17.42%seventeen point,four two percent,6.9.57%nine point five seven,percent,Exercise,第52页,8.,其它使用方法,（,1,）,基数词表示年纪,in ones+,基数词复数,e.g.five years old,in,ones,forties,My elder sister is,seventeen,and my younger sister is,ten,.,My uncle is,in his thirties.,I m eighteen.,第53页,(2),表示房间号和电话号码,e.g.202 room two o two,404 room four o four,303-2244,Three o three double two four four,第54页,(3),页码数，行数,e.g.,第,10,页：,page ten,第,25,页：,page twenty-five,第,109,页：,page one hundred,and nine,第,6,行：,line six,第,29,行：,line twenty-nine,第55页,
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