2015届中考英语总复习：“数词”课件（共10张PPT）.ppt

分数表示法 分数是由基数词和序数词一起来表示的。基数词作分子，序数词作分母，分子大于1时，分母加s。 半数表示法 半小时 半月 一个半小时 三天半 两年半 时刻表示法 1 表示几点钟用基数词加可以省略的o’clock 8:00 2 表示几点几分 8:05 数量表示法 1 表示长、宽、高、面积等，用基数词+单位词(meter，kilometer, kilogram等)+ 形容词(long，wide等)表示 2米长 3公斤重 2. 表示时间、距离时，使用含数词的名词所有格形式作定语。 步行五分钟(的距离) 七天的假期 3 由数词和其他名词构成的名词性短语作定语时,其中的名词用单数形式,名词性短语中各部分间要用连字符“-”来连接。 步行五分钟(的距离) 七天的假期 * 数词 基数词 序数词 1）基数词写法和读法： 345　three hundred and forty-five；2)序数词和基数词之间的相互转换。 3）考查hundred, thousand, million,billion的用法 4）考查分数的用法。 5考查年份、日期、时间、距离、年代、年龄表达法 A、年、月、日的表达法， B、时间的表达法 C、in the 1990s/in his forties 1/2 1/3 1/4 1/5 a half one second one third a quarter one fourth one fifth 2/3 3/4 3/5 5/8 two thirds three quarters three fourths three fifths five eighths half an hour half a month one and a half hours one hour and a half three and a half days three days and a half two years and a half two and a half years 8:30 8:15 8:55 8:45 eight o five eight fifteen eight thirty eight forty-five eight fifty-five five past eight a quarter past eight half past eight a quarter to nine five to nine eight o’clock eight two meters long three kilos heavy five minutes’ walk five-minute walk seven days’ holiday seven-day holiday ( )1 In our class ____ of the students are girls. A second three B second third C two thirds D two three ( ) 2 The bike cost me ________ yuan. A five hundred and forty 　B five hundreds fourty C five hundred forty 　 D five hundred fourty ( ) 3 Please turn to Page ___ and look at the ___ picture． A. Fifth, five　　　 B. Five, fifth C. Fifth, fifth　　　　 D. Five, five ( ) 4 He went to college in ___ and began to work in his ____. A the 1980s, twenty B the 1980s, twentieth C 1980 , twenty D 1980s, twentieth ( ) 5 She was born on ________． A 1986,March 9　　　B March nine, 1986