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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,*,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,*,数词复习,数,词,基数词,序数词,数量,顺序,2,基数词的构成,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,构成。,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,80-eigh,t,y,60-six,ty,70-seven,ty,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,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,基数词的构成,4,序数词的构成,1)1,3,first,second,third,。,2)4,19,相应基数词,+th,特殊拼写,:,fifth,eighth,ninth,twelfth,。,3)20,90,y,变成,ie,+th,如,twent,ieth,。,4)21,99,只把个位的基数词变成序数词,如,twenty-,first,。,5),序数词缩写,-,数字最后两字母,如,1st,2nd,3rd,4th,5,基变序,有规律,一、二、三，特殊记，面目全非要注意，,加,th,从,4,起，,八少“,t,”,，九去“,e,”,，,“,ve,”,要用“,f,”,替，,(five,twelve),见“,y,”,变成“,i,”,和“,e,”,，词尾加上“,th,”,，,(twenty,thirty,ninety),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,),6,基数词的用法,1,、,表示,具体,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,可以用,many/several,修饰，但不能与具体数目连用。,1)Our country has a population of 1,300,million,people.,2)There are three,thousand,students in our school.,3)After the war,thousands of,people became,homeless.,4)Several/Many,thousands of,trees must be,planted every year.,2,、“几十”的复数形式可以表示：,几十多岁,-in+,ones,+,数词复数,年 代,-in+,the,+,数词复数,1)He died,in his forties,四十多岁,2),In the nineties,most people go to work by bike.,90,年代,3,、,“,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,。,a 3,year,old girl a seven-,day,holiday,4,、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,.,8,5,、表示时刻,(,介词用,at),1,),顺读法,-,先时后分,“,几点几分”,9:30 nine thirty 6:21 six twenty-one,3),15,分钟：,a quarter 30,分钟：,a half,9:15 a quarter past nine,12:30 half past twelve,2),逆读法,-,先分后时,表示“几点,过,几分”，半小时以内，介词用,past,分钟数,+,past,+,钟点数,10:10 ten,past,ten 8:20 twenty,past,eight,表示“,几点,差,几分”，半小时以上，介词用,to,60,减原分钟,+,to,+,(,下一个,),钟点数,9:50 ten,to,ten 7:40 twenty,to,eight,9,(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,”的意思,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,序数词的用法,10,编号表示法,编号在,前,，名词在后，用,序,数词，前面有,the,编号在,后,，名词在前，用,基,数词，注意首字母,大写,房间号码和电话号码要一个一个分别读,The First Lesson,（在句子中不大写）,Lesson One,the thirty-second page,Page 32/Page Thirty-two,Room 305,Bus No.12,第一课,第,32,页,第,305,房间,第,12,路公共汽车,11,1/4,one-fourth,a(one)quarter,3,/4 three-fourths,three quarters,2/3,two-thirds,1,/2,a(one)half,半年,half a year,半小时,half an hour,一年半,one and a half,years,one,year,and a half,分数表示法,分子用基数词，分母用序数词。,分子大于,1,时，分母加,-s,。,12,1999 nineteen ninety-nine,two thousand and eight,1949,年,10,月,1,日 读作,:,October(the)first,nineteen forty-nine,(,月,-,日，年,),the first of October,nineteen forty-nine,（日,-,月，年）,写作,:,October,1st,1999,(,日用缩写，月,-,日,-,年,),October,1,1999,(,日用数字,),1st,October,1999,日,-,月，年,年份、日期表达法,年,用,基数词,表示,两位一读,介词用,in,日,用,序数词,表示,介词用,on,表示“在,世纪”,用序数词。,在,20,世纪 写作：,in,20th century,读作：,in the twentieth century,13,【,实例解析,】,14,1.(2004,年上海市徐汇区中考试题,),About _ students in our class can describe that place in English.,A.three-fifths B.three-fifth,C.third-five D.third-fifths,答案：,A,。该题考查的是分数的表示法。分子用基数词表示，分母用序数词表示。分子大于,1,时，分母应加,-s,，因此应选,A,。,15,2.(2004,年河北省中考试题,),Nine _ pounds a week?Thats very good.,A.hundred of B.hundreds of,C.hundreds D.hundred,答案：,D,。该题考查的是数词的用法。,Nine hundred,是一个具体的数量，这是数词不能用复数形式，后面也不能加,of,。所以应选,D,。,16,【,中考演练,】,选择题答案及,分析,1,5:B D D A B,610:D C B A A,1115:C A B C C,17,中考,听力,题,数词考点,18,1/2,1,/3,1/4,2,4/25,3/4,3,three fourths/three quarters,one third/a third,twenty-four twenty-fifths,three and six sevenths,one quarter/a quarter/one fourth,a half,Can you read a fraction?,July1,1921,October 1,1949,August 1,1927,May,1922,When,were,they,founded,?,PRC,L,eague,PLA,CCP,The _,was founded,on,/,in,_,What is the time?,six,/six oclock,four,o,five,/five past four,seven fifteen,/a quarter past seven,nine twenty,/twenty,past,nine,nine thirty,/half,past,nine,six forty,/,twenty to seven,1.What is,ten,and,eight,?,2.How old are you?,3.When were you born?,4.What class are you in?,5.How many students are there in your class?,6.Whats your telephone number?,7.How long is the Great Wall?,8.Whats the population of China?,9.When do you usually get up?,Ask and answer in pairs,Try your best!speak loudly and quickly!,test,14,40,50,15,17,70,90,19,18,80,60,16,Summary(,小结,),1.,基数词的构成（,6,点）,2.,序数词的构成（,5,点，记歌谣）,3.,基数词的用法,(hundred,thousand,million,、岁数与,年代、“基,名”、计量、时刻）,4.,序数词的用法,(,加,the,a/an),5.,编号表示法,(,可用序数词,/,基数词,注意加,the,或大写,),6.,分数表示法,(,分子,:,基数 分母,:,序数,),7.,年份、日期、的表达法,(,年,:,基数 日、世纪,:,序数,),Homework,1,、选择题,2,、默写基数词和序数词,3,、改错练习,4,、,writing,-,注意大小写，标点，连接词等,今天是,2008,年,4,月
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