中考复习-数词.ppt

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,*,Numbers,初三英语专项复习（数词）,基数词,1.,基数词表示数目的词称为基数词。其形式如下：,A,从,110,one,，,two,，,three,，,four,，,five,，,six,，,seven,，,eight,，,nine,，,ten,B,从,1119,eleven,，,twelve,，,thirteen,，,fourteen,，,fifteen,，,sixteen,，,seventeen,，,eighteen,，,nineteen,这里除,eleven,，,twelve,，,thirteen,，,fifteen,，,eighteen,为特殊形式外，,fourteen,，,sixteen,，,seventeen,，,nineteen,都是由其个位数形式后添加后缀,-teen,构成。,C,从,2199,整数几十中除,twenty,，,thirty,forty,，,fifty,，,eighty,为特殊形式外，,sixty,，,seventy,，,ninety,都是其个位数形式后添加后缀,-,ty,构成。表示几十几时，在几十和个位基数词形式之间添加连字符“,-”,21 twenty-one,76 seventy-six,D,百位数,个数基数词形式加“,hundred”,，表示几百，在几十几与百位间加上,and,101 a hundred and one,320 three hundred and twenty,648 six hundred and forty-eight,E,千位数以上,从数字的右端向左端数起，每三位数加一个逗号“，”。从右开始，第一个“，”前的数字后添加,thousand,，第二个“，”前面的数字后添加,million,，第三个“，”前的数字后添加,billion,。然后一节一节分别表示，两个逗号之间最大的数为百位数形式。,2,648,two thousand six hundred and forty-eight,16,250,064,sixteen million two hundred and fifty thousand,sixty-four,5,237,166,234,five billion,，,two hundred and thirty-seven,million,，,one hundred and sixty-six thousand,，,two hundred and,thirty-four,热门考点：,Be in ones+,整十的复数形式,My parents are,in their forties.,Mr.Green is,in her fifties.,表示数量的名词的使用：,前有，后没有；前没有，后要有。,Several hundred,students,five thousand,people,thousands of years ago,millions of stars,热门考点：,3.,合成词：合成形容词是用连词号把两个或者两个以上的词连成一个形容词。（）只能做定语；（）合成形容词的名词一律用单数。,a,five-star,hotel,a,seven-year-old,boy,an,eight-year-old,girl,a,two-day,trip,In fact,the leaning Tower of,Piza,is,a,54.5-metre-tall,bell tower.,Learn how to say the following numbers,(1)100,one hundred,(2)1,000,one thousand,(3)200,two hundred,(4)1,000,000,one million,(5)210,two hundred,and,ten,(6)4,189,four thousand one hundred,and,eighty-nine,(7)15,362,fifteen thousand three hundred,and,sixty-two,Pay attention:,hundred,thousand and million,have no“-s”after a number,“1909”,(1)If it is a,date,We say like this,1909,nineteen oh nine,(2)If it is a,telephone number,We say like this,1909,one nine zero nine,“o”,in English we can say,“oh”or “zero,”,Practise,the following numbers in three ways:,A.as an amount,B.as part of phone number,C.as a date,1814,2035,1666,1016,1902,1988,序数词,1.序数词一般由基数词后加th构成，前面一般加定冠词the。,the eighteenth,the two hundredth,2.以y结尾的基数词构成序数词时，先把y改成i，再加eth。,The fiftieth,the twentieth,3.不规则的序数词有以下几个,First,second,third,fifth,eighth,ninth,twelfth,4.编号有两种表示法,1）名词基数词,Lesson Three,Part One,2）定冠词序数词名词,The third lesson,the first part序数词 表示顺序的词称为序数词。序数词的主要形式：,A,从第一至第十九,其中，,one first,，,two second,，,three third,，,five fifth,，,eighteighth,，,nineninth,，,twelve,twelfth,为特殊形式，其它的序数词都是由其相对应的基数词后面添加“,th,”,构成。例如：,six sixth,、,nineteen nineteenth,B,从第二十至第九十九,整数第几十的形式由其对应的基数词改变结尾字母,y,为,i,，再加“,eth”,构成。,twentytwentieth thirtythirtieth,表示第几十几时，用几十的基数词形式加上连字符“”和个位序数词形式一起表示,thirty-first,第三十一,fifty-sixth,第五十六,seventy-third,第七十三,ninety-ninth,第九十九,C,第一百以上的多位序数词,由基数词的形式变结尾部分为序数词形式来表示。,one hundred and twenty-first,第一百二十一,one thousand,，,three hundred and twentieth,第一千三百二十,D,序数词的缩写形式,有时，序数词可以用缩写形式来表示。主要缩写形式有。,first,lst,second2nd,third3rd,fourth4th,sixth6th,twentieth20th,twenty-third23rd,其中,lst,，,2nd,，,3rd,为特殊形式，其它的都是阿拉伯数字后加上,th,。,first,1,st,twent,ieth,20th,second,2,nd,twenty,-first,21st,third,3,rd,thirt,ieth,30th,four,th,4th fort,ieth,40th,fif,th,5th fift,ieth,50th,six,th,6th sixt,ieth,60th,seven,th,7th sevent,ieth,70th,eigh,th,8th eight,ieth,80th,nin,th,9th ninet,ieth,90th,ten,th,10,th,hundred,th,100th,eleven,th,11th,one hundred and,first,101,st,用法,1.,Lesson,One,=the,first,lesson,2.Row,Three,=the,third,row,3.May,2nd,1987,4.1/3:one,third,2/3:two,third,s,5.the,second,long,est,river,分数，小数，,百分比,分数由基数词和序数词合成，分子用数词，分母用序数词。分子大于一时，分母的序数词用复数形式。,1,one and two thirds,one(a)third,one(a)half,one(a)quarter,小数点读point，零读o或zero，小数点后的数字按个位基数词依次读出。0.6 zero point six,3.百分数由percent表示。,How to say decimal point:,(1).3,point,three,(2)0.3,zero,point,three,(3)0.368,zero,point,three six eight,Pay attention:,We say each number separately,after a decimal point,Practise,talking,(1)7.145,(2)36.36,(3)0.472,(4)1.395,(5)0.848,(6)0.47,时间和钟点,二、时刻表示法,1.,表示几点钟用基数词加可以省略的,oclock,5:00,读作,five oclock,或,five,2.,表示几点过几分，在分钟后加,past,，再加小时,five past seven,七点过五分,half past six,六点半,a quarter past eight,八点过一刻,seven past eight,八点过七分,3.,表示几点差几分，在分钟后面加,to,，再加小时,ten to eight差十分八点（七点五十分）,a quarter to twelve,差一刻十二点（十一点四十五分）,twenty to six,差二十分六点（五点四十分）,在日常生活中，常用下列简单方法表示时间。,以小时、分钟为单位分别读出数字。,6:31,读作,six thirty-one,10:26,读作,ten twenty-six,14:03,读作,fourteen o three,16:15,读作,sixteen fifteen,18:30,读作,eighteen thirty,23:55,读作,twenty-three fifty-five,注：时刻表上的时间大多采用,24,小时表示法，这样就不需要用,a.m.,表示上午，,p.m.,表示下午了,日期和年份,A,年份用基数词表示，一般写为阿拉伯数字，读时可以以,hundred,为单位，也可以以世纪、年代为单位分别来读。,1949,读作,nineteen hundred and forty-nine,或,nineteen forty-nine,1800,读作,eighteen hundred,253,读作,two hundred and fifty-three,或,two fifty-three,253,读作,two hundred and fifty-three,或,two fifty-three,1902,读作,nineteen hundred and two,或,nineteen o two,表示在哪一年，一般在年数前加介词,in,，使用,year,时，,year,放在数词之前。,in the year two fifty-three B.C.,在公元前,253,年,但是，通常采用,in,加表示年份的阿拉伯数字,。,B.,月份，在哪个月用介词,in,加第一个字母大写的月份词表示。例如：,in May,在五月；,in July,在七月。为了简便起见，月份与日期连用时，月份常用缩写形式表示。缩写形式除,May,，,June,，,July,外，其它的月份都由其前三个字母表示，但,September,除外。,JanuaryJan一月,FebruaryFeb,二月,MarchMar.,三月,AprilApr,四月,AugustAug,八月,SeptemberSept,九月,OctoberOct,十月,NovemberNov,十一月,DecemberDec,十二月,注：这里缩写形式后面加点不能省略，因为它是表示缩写形式的符号。,C.,表示不具体、不确切的时间，如世纪、年代、年份、月份时，用介词,in,表示，表示具体确切的某一天用介词,on,表示通常情况下,morning,，,afternoon,，,evening,等词前用介词,in,。但是，当这些词前后有一修饰限定的词作为定语，把它们限定为某一天早晨、下午或晚上时，介词,in,应改为,on,。这里的修饰限定词可以是介词短语、名词、形容词、定语从句等。,On a cold morning,，,the old man died lonely in his house,在一个寒冷的早晨，这个老人孤独地死在自己的房子里。,The girl was sent to hospital on the night of March 20.,这个姑娘在三月二十日的夜里被送进了医院。,The accident happened on the afternoon of July 7,这次事故发生在,7,月,7,日下午。,We are going to have a small test on Monday morning,星期一早晨我们将进行一次小测验。,