初中英语语法复习-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,数词,数词的考点,一,.,基数词、序数词,二,.,数词的表示法,1.,基数词：表示数目的词称为基数词。,one eleven twen,ty,twotwelve thir,ty,three thir,teen,for,ty,four,fourteen,fif,ty,five fif,teen,six,ty,six six,teen,seven,ty,seven seven,teen,eigh,ty,eight eigh,teen,nine,ty,nine nine,teen,ten,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 one 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。,four,thousand,three hundred,and,twenty,-,one,7,654,321,1,987,654,321,4,321,one,billion,nine hundred and eighty-seven,million,six,hundred and fifty-four,thousand,three hundred,and,twenty,-,one,seven,million,six hundred and fifty four,thousand,three hundred,and,twenty,-,one,热门考点：,in ones+,整十的复数形式,(,在某人几时岁时,),My parents are,in their forties.,Mr.Green is,in her fifties.,表示数量的名词的使用：,Several,hundred,students,five thousand,people,1.hundred,thousand,(,表示具体数字,),million,billion,2.hundred,s,thousand,s,(,表示概数,),million,s,billion,s,三,.,基数词的用法,数词,(,several,)+,+,of,many hundred,s,of,月日年 在,2008,年,10,月,1,日,四,.,数词的表示法,年月日,on,October,the,first,two thousand,and,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,on,Oct.1,st,2008,月日 在,8,月,9,日,月年 在,2010,年,5,月,有日用,on,无日用,in,in,May,two thousand and ten,1.The accident happened on_.,A.April 5,2001,B.2001,April 5,C.April 2001,5,2.I was born _.,A.in March 8,1993,B.on July 9,1994,C.on May,1995,20,世纪,90,年代,in,the,1990,s,在他,50,多岁时,in his fifties,四,.,数词的表示法,年代世纪,in,the,in ones+,整十基数词复数,在某人几十岁时,nineteen,nineties,1.The city changed a lot _.,A.in 1980s,B.in the 1980s,C.in the 1980,2.He got the prize _.,A.in his fifties,B.in fifties,C.in his fifty,序数词,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,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,f,irst,second,third,fifth,eighth,ninth,twelfth,4.,编号有两种表示法,1）名词基数词,L,esson,T,hree,P,art,O,ne,2）定冠词序数词名词,t,he third lesson,the first part,5.,序数词前加,a/an,表示“再,”,，“又,”,You should have a try,a second,time.,你应该再试一次。,I have seen the film two times,but I want to see it,a third,time because it is interesting.,我已经看过这部电影两次了，但是我还想再看一次（第三次）因为太有趣了。,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,四,.,数词的表示法,半的表示法,1.,The boy always stays there for _.,A.one and half hour,B.one and a half hour,C.one 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,分数，小数,百分数,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,四,.,数词的表示法,分数百分数,时间和钟点,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,按顺序读基数词,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,四,.,数词的表示法,时间,一倍,once,，两倍,twice,，,三倍,three time,s,(,三倍或以上：基数词,times),四,.,数词的表示法,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,的,倍,C,+be+,倍数,+adj.,比,+,than,+,D,.,C,比,D,大,倍,six times heavier than,seven times as heavy as,1.,This building is _ that building.,A.three time as tall as,B.twice taller than,C.three times as taller as,2.,我的箱子比你的重六倍,!,My box is _ yours.,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,He came to China _.,A.at the age of 20,B.when he is 20,C.at age of 20,四,.,数词的表示法,年龄,四,.,数词的表示法,计量,2 meters wide,3 meters high,The river is about _.,A.6,000 meters long,B.6,000-meters-long,C.6,000-meter-long,Thanks,