中考英语数词复习概要.ppt

数词复习;基数词(表示个数的词);;What’s the date? ;Numbers are widely used. ;100???????????????? 2,000?????????????? 30,000????????????? 400,000????????????? 5,000,000????????????60,000,000??????????700,000,000???????? 8,000,000,000??????? 90,000,000,000???????????????????? 100,000,000,000????;,;数 词;基数词的构成;29;序数词的构成; 基变序,有规律,词尾要加th . 一二三,特殊记,词尾分别tdd(first second third ) 八去t ,九去e,ve要用f替.ty变作tie,再加th莫忘记. 若遇几十几,只变个位就可以.;基数词的用法;2、 “几十”的复数形式可以表示： 几十多岁 ---- in + one’s + 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; 5、表示时刻 (介词用at) 1)顺读法----先时后???, “几点几分” 9:30 nine thirty 6:21 six twenty-one ;(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 We‘ll 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;编号表示法;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;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;考点训练10;;;;;;;;;;;;;;;;;;;;;Summary(小结);Thank you !