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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,Numerals,第1页,2,warming up,1._ tress were planted on the mountain last year.,A.Thousands of B.Thousand of,C.Five thousand of D.Five thousands.,2,_ of the students are girls in our class,A,Two threeB,Two threes,C,Two thirdsD,Second three,3.-When was he born?,-He was born on _.,A.second of October B.the October three,C.October the second D.three of October,第2页,3,表示数目多少或次序多少词叫数词，数词分为基数词和序数词。表示数目多少数词叫,基数词,；表示次序数词叫,序数词,。,什么叫数词,?,第3页,4,基数词组成,1,）,1,12,独立成词。,one two three four five six seven eight nine ten eleven twelve,2,）,13-19,由,3,9+teen,组成。,14four,teen,16-six,teen,17-seven,teen,19nine,teen,特殊拼写,:13 th,ir,teen,15-fi,f,teen,18eigh,t,een,3,）,20,90,以,-ty,结尾。,20tw,en,ty,30-th,ir,ty,40fo,r,ty,50fi,f,ty,60-six,ty,70-seven,ty,80-eigh,t,y,90nine,ty,4,）,21,99,，两位数，十位与个位之间有“”。,21 twenty,one 55 fifty,five 99 ninety,nine,5,）,101999,，三位数，百位与十位,/,个位之间加,and,。,101 one hundred,and,one,840 eight hundred,and,forty,693 six hundred,and,ninety,-,three,第4页,5,29,431,500,7,6,thousand,hundred,million,billion,and,6)1,，,000,以上数目,从右向左每三位用“，”,分开,分别读为,thousand,million,billion,基数词组成,第5页,基数词组成,6500431729,six billion,five hundred million,four hundred and thirty-one thousand seven hundred and twenty-nine,第6页,four,thousand,three hundred,and,twenty,-,one,seven,million,six hundred and fifty four,thousand,three hundred,and,twenty,-,one,7,654,321,1,987,654,321,4321,4,321,one,billion,nine hundred and eighty-seven,million,six hundred and fifty-four,thousand,three hundred,and,twenty,-,one,第7页,1.hundred,thousand,(表示详细数字),million,billion,2.hundred,s,thousand,s,(表示概数),million,s,billion,s,三,.基数词使用方法,数词,(,several,)+,+,of,the/some,/,many/these/those hundred,s,of,第8页,基数词使用方法,1,、,表示,详细,数目,hundred,thousand,million,不用复数,表示,不确定,数目,用,复数。,即,hundred,s of,(,数百,),thousand,s,of,(,数千,),million,s of,(,数百万,)+,名词复数。,1)Our country has a population of 1,300,million,people.,2)There are several,thousand,students in our school.,3)After the war,thousands of,people became,homeless.,第9页,1.If a=3,b=4,whats the answer to the problem,a+2ab+1=?,the answer is_.,A.twenty eight,B.twenty-eighth,C.twenty-eight,2.In our school about five _ students are able to surf the Internet.,A.hunderd of,B.hunderds of,C.hundred,第10页,3._ sheep were killed in the accident.,A.Thousand of B.Thousand,C.Thousands of,4.There are over nine _ workers in the factory,but _ of young people hope to work in it.,A.hundred 0f;hundreds,B.hundred;hundreds,C.hundreds;hundred,第11页,5.,people in the world are sending information by e-mail every day.,A.Several million B.Many millions,C.Several millions D.Many million,A,第12页,序数词组成,1)1,3,first,second,third,。,2)4,19,对应基数词,+th,fourth,fifth,sixth,seventh,eighth,ninth,tenth,eleventh,twelfth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth.,3)20,90,y,变成,ie,+th,twentieth,thirtieth,fortieth,fiftieth,sixtieth,seventieth,eightieth,ninetieth,。,4)21,99,只把个位基数词变成序数词,如,twenty-,first,ninety-,ninth,5),序数词缩写,-,数字最终两字母,如,1st,2nd,3rd,4th,第13页,14,基变序,有规律,词尾加上“,th,”，,一、二、三，特殊记，结尾字母t,d,d,八去“,t,”，九去“,e,”，“,f,”要把,ve,替,见“,y,”变成“,i,”和“,e,”，词尾加上“,th,”，,若是碰到几十几，只变个位就能够。,序数词缩写记清楚,数字后跟两字母。,(,序数词组成规律),第14页,基数词,序数词,基数词,序数词,one,twel,ve,two,twent,y,three,twenty,-one,fo,u,r,fort,y,fi,ve,one hundred,six,one hundred,and,five,eigh,t,one hundred and twenty-nine,nin,e,nin,e,teen,一,.基数词、序数词,first,second,third,fourth,fi,f,th,sixth,eighth,ninth,twel,f,th,twent,ie,th,twenty-,first,fort,ie,th,one hundredth,one hundred and fifth,one hundred and twenty-ninth,nin,e,teenth,第15页,时间类型,表示法,例,读法,整点,基数词（,+oclock),1:00,30分钟,分钟,+past+小时,2:10,=30 分钟,half+past+小时,3:30,30分钟,（,60-分钟）+to+（小时+1）,4:40,分钟逢,15,即 一刻钟,a quarter,5:15,6:45,简化法,按次序读基数词,7:50,one oclock,ten past two,half past three,twenty to five,a quarter past five,a quarter to seven,seven fifty,表示在几点钟用介词,at,数词表示法,时间,第16页,1.Its already 7:40 now.When will the film start?,_.We still have five minutes.,A.A quarter to seven,B.A quarter to eight,C.Seven past forty-five,第17页,月日年 在1998年10月1日,数词表示法,年月日,on,Octorber,the,first,nineteen ninety-eight,日,the+序数词,月,（首字母大写）,月日与年之间用,，,分开,年,（两位两位读）,on,August the ninth,in,May,two thousand and ten,天日用,on,年月用,in,on,Oct.1,st,1998,月日 在,8月9日,月年 在,年5月,第18页,1.The accident happened on_.,A.April 5,B.,April 5,C.April,5,2.I was born _.,A.in March 8,1993,B.on July 9,1994,C.on May,1995,第19页,20世纪90年代,in,the,1990,s/,1990,s,在他,50多岁时,in his fifties,数词表示法,1.,年代世纪,in,the,in ones+整十基数词复数,在某人几十岁时,nineteen,nineties,第20页,21,2、“,基数词,+,名词”,合成形容词,作定语，,中间有连字符“,”,当中名词用,单数,。,a 3,year,old girl a seven-,day,holiday,3、表计量,-“,基数词,+,度量单位,+,形容词”,The classroom is,7 meters long,6 meters wide,and,3 meters high,.,第21页,1.There will be more chances in _ century than in _ century.,A.twenty-one,twenty,B.twenty-first,twentieth,C.the twenty-first,the twentieth,2.The city changed a lot _.,A.in 1980s,B.in the 1980s,C.in the 1980,第22页,3.He graduated in _ of _ century.,A.the sixtieth;twenty,B.sixty;the twentieth,C.his sixties;the twentieth,4.She got the prize _.,A.in her fifties,B.in fifties,C.in her fifty,第23页,5,.,The winner is _.He is an _ boy.,A.eight-year-old;eight years old,B.eight years old;eight-year-old,C.eight-years old;eight-year-old,6.He came to China _.,A.at the age of 20,B.when he is 20,C.at age of 20,第24页,7.The river is about _.,A.6,000 meters long,B.6,000-meters-long,C.6,000-meter-long,be+数词+度量词+形容词,第25页,1,5,分子,基数词,分母,序数词,one fifth,2,7,分子,1,分母,+s,two seventh,s,1,4,分子,a,分母,quarter,a quarter,3,4,three quarter,s,1,2,a half,1,3,three,and,one third,3,基数词,+and+分数,数词表示法,分数百分数,第26页,80%,基数词,+,percent,eighty percent,百分数,+of+可数名词复数,谓语动词用复数,百分数+of+不可数名词,谓语动词用单数,Seventy percent of,students,in our class,are,girls,Over seventy percent of the earths,surface is,covered with water,第27页,1.,_ of the students _ boys in Class,A.Two three;are B.Two thirds;are,C.Two thirds;is,2.,_ of her money _ spent on clothes.,A.Two three;are B.Two thirds;is,C.Two third;is,3._ the teachers in our school is about one hundred,and _ of them are women teachers.,A.The number of;two thirds,B.The number of;two third,C.A number of;two thirds,第28页,一个半小时,两个半小时,two,and,a half hour,s,=two hour,s,and,a half,one,and,a half hour,s,=one hour,and,a half,数词表示法,半表示法,1.,The boy always stays there for _.,A.three and half hour,B.three hour and a half,C.three and a half hours,2.,The old man drank_ beer.,A.two bottles and a half,B.two and a half bottle,C.two bottle and a half,第29页,一倍,once，两倍 twice，,三倍 three time,s,(三倍或以上 基数词times),数词表示法,倍数,This box is,five,time,s,as,big,as,that one.,=This box is,four,time,s,big,ger,than,that one.,A+be+,倍数,+,as,+adj.原+,as,+B.,A是B 倍,A,+be+,倍数,+adj.,比,+,than,+B.,A比B 倍,第30页,1.,This building is _ that building.,A.three time as tall as,B.twice taller than,C.three times as taller as,2.,我箱子比你重六倍!,My box is _ yours.,2.What a table!Ive never seen such a thing before.It is,it is long.,A.half not as wide as B.wide not as half as,C.not half as wide as D.as wide as not half,six times heavier than,seven times as heavy as,C,第31页,普通编码用,名词,+,基数词,207房,三年级一班,第五部分,第一课,3 号汽车,第一中学,Room 207,Class One Grade Three,Part five=the fifth part,Lesson one=the first lesson,Bus No.3=,the No.3 bus,No.1 Middle School,数词表示法,编号,1.My mother lives at,on,floor.,A.Room Six;the second B.Six Room;second,C.Room six;two D.the room six;the second,A,第32页,(1)小数读法,小数点左边数通常按基数词读，若为三位以上数，也可按编码式读法读出，即将数字单个读出；小数点右边数通常按编码式读法单个读出。如：,6.86 six point eight six,14.15 fourteen point one five,(2)小数中“0”读法,“0”在小数中通常读作nought（英）或zero（美），也可读作字母o。如：,0.08（nought）point nought eight,或（zero）point zero eight,小数表示法,第33页,6+511 Six plus five is eleven,或 Six and five is eleven.,11-65 Eleven minus six is five.,或 Six from eleven is five.,4520 Four multiplied by five is twenty.,或 Four times five is twenty.,2045 Twenty divided by four is five.,或 Four into twenty goes five.,3 Three squared is nine.,2 Two cubed is eight.,加减乘除式表示方法,2,3,第34页,表示“大约、靠近”，惯用nearly,about,some,almost,around 等。,about 700 people some fifty years ago,表示“左右”用or so,In the past five years or so,“少于”用less than,Less than 30 years old 不到30岁,“多于”用 more than,over,More than a year ago over 70 years ago,约数表示法,第35页,36,(1),序数词作定语，前面要加,the,；,The,first truck is carrying a food basket,John lives on,the,fifteenth floor,She is,my,first English teacher.,(2),有时加,a/an,，“,再一,”，“,又一,”意思,Well have to do it,a second,time,Shall I ask him,a third,time,？,When I sat down,，,a fourth,man rose to speak,They had,a second,child in 1988,序数词使用方法,第36页,选择填空。1March is _month of a yearA a three B the third C a third2We will have a meeting,at 8:05,_Afive to eight B.eight to five Ceight o five3Eight plus eight is_.Asixteen Bsixty-four Cone4He is an _boyAeight years Beight-year-old Ceight-years-old5We will have a_ walkAten minutes Bten minutes Cten-minutes,B the third,Ceight o five,Asixteen,Beight-year-old,Bten minutes,第37页,6The wall is_.Afour meters long Bfour meter long Cfour-meter long,7Whats the date today?Its_AMarch the eight BMarch the eighthCeight，March8It happened,in the 1040s,A in the forties of the eleventh centuryB in the forties of the tenth centuryC in the forty,9About_ of the earths surface is covered with water.A.three-fours B.three-fourth C.three-fourths,Afour meters long,BMarch the eighth,A in the forties of the eleventh century,C.three-fourths,第38页,10.He went down to the village which was _miles away from the city.A.three hundreds B.three hundredC.three hundreds of,B.three hundred,第39页,40,Homework,1.Grammar focus textbook(p30),exercise1-2,2、Workbook(p19)exercise4,第40页,THE END,第41页,
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