第5天数词.ppt

四.数词 基数词：个数 序数词：第几个 基数词 序数词 百，千，百万,十亿 hundred, thousand, million, billion 1. 表示具体数目，即前面有具体数字，只能用单数 300 three hundred 2. 表示不具体数目，即后面有 of 时，只能用复数 hundreds of 成百上千 thousands of 成千上万 There are hundreds of students on the playground. 操场上有成百上千的学生。 1.基数词变序数词的顺口溜： 基变序，有规律，词尾加上th ；一，二，三特殊记，词尾字母t,d,d；八加h,,九去e,ve要用f替，以y结尾变ie，后跟th莫忘记。若想表示几十几，只变个位就可以。 2.时间表达方法： a half 一半 a quarter 十五分 past和to表示“几点几分”的用法： A:分钟数在30分钟内： 分钟数+past+钟点数，表示“几点过几分” 如：9：20 = twenty past nine B:分钟数超过30分钟：（60-分钟数）+to +(下一个钟点数）。 表示“差几分几点” 如： 9：50（差10分到10点）：ten to ten 3.年月日两种表达方法 2013，1，26 January (the) 26th,2013 或： the twenty-sixth of January ,2013 用法，考点 这个男孩子8岁了。 This boy is eight years old. 这是一个8岁的男孩子。 This is an eight-year-old boy. 走路5分钟的路程那么远 five-minute-walk long * * one hundred thirty twenty ten ninety twenty-nine nineteen nine eighty twenty-eight eighteen eight seventy twenty-seven seventeen seven sixty twenty-six sixteen six fifty twenty-five fifteen five forty twenty-four fourteen four thirty twenty-three thirteen three twenty-two twelve two twenty-one eleven one thirtieth twentieth tenth ninetieth twenty-ninth nineteenth ninth eightieth twenty-eighth eighteenth eighth seventieth twenty-seventh seventeenth seventh sixtieth twenty-sixth sixteenth sixth fiftieth twenty-fifth fifteenth fifth fortieth twenty-fourth fourteenth fourth twenty-third thirteenth third twenty-second twelfth second twenty-first eleventh first Teaching aims 1.Vocabulary January, February, March, April, May, June, July, August, September, October, November, December first, second, third, fourth, …, thirtieth, thirty-first 1st, 2nd, 3rd, 4th, … , 30th, 31st 2. When is your birthday? My birthday is May 9th. When is Mike’s birthday? His birthday is July 27th. When is Jane’s birthday? Her birthday i