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1、数词,数词的考点,一.基数词、序数词,二.数词的表示法,基数词的构成,1）112, 独立成词。 one two three four five six seven eight nine ten eleven twelve2）13-19, 由39 + teen构成。 14fourteen 16-sixteen 17-seventeen 19nineteen 特殊拼写: 13 thirteen 15-fifteen 18eighteen 3）2090, 以-ty结尾。 20twenty 30-thirty 40forty 50fifty 80-eighty 60-sixty 70-seventy
2、90ninety 4）2199， 两位数，十位与个位之间有 “”。 21 twentyone 55 fiftyfive 99 ninetynine5）101999，三位数，百位与十位/个位之间加and。 101 one hundred and one 840 eight hundred and forty 693 six hundred and ninety-three,一.基数词变序数词,first,second,third,fourth,fifth,sixth,eighth,ninth,twelfth,twentieth,twenty-first,fortieth,one hundredt
3、h,one hundred and fifth,one hundred and twenty-ninth,nineteenth,口诀：基变序，有规律，词尾加上th。一、二、三特殊记，结尾字母t d d.八减t，九减e， ve 要用f替。ty把y变成ie，再加th。若是碰到几十几前用基，后用序。,二.基数词的读法,1、百位和十位间用 and 连接, 十位和个位间用 - 连接,three hundred and twenty-one,321,2、右往左数,三位一组,逗号隔开.依次是 thousand(千) million (百万) billion (十亿),29,431,500,7,6,thous
4、and,hundred,million,billion,and,6) 1，000以上数目,从右向左每三位用“，” 分开,分别读为thousand , million, billion,基数词的构成,four thousand three hundred and twenty-one,seven million,six hundred and fifty four thousand three hundred and twenty-one,7,654,321,1,987,654,321,4321,4,321,one billion nine hundred and eighty-seven mi
5、llion,six hundred and fifty-four thousand three hundred and twenty-one,1. hundred thousand (表示具体数字) million billion2. hundreds thousands (表示概数) millions billions,三.基数词的用法,数词(several)+,+ of,some / many hundreds of,1. If a = 3, b=4, whats the answer to the problem, a+2ab+1=? the answer is_. A. twenty
6、eight B. twenty-eighth C. twenty-eight2. In our school several _ students are able to search the Internet . A. hunderd of B. hunderds of C. hundred,3. Many _ sheep were killed in the accident. A. thousands of B. thousand C. thousands4. There are over nine _ workers in the factory, but _ of young peo
7、ple hope to work in it. A. hundred; hundreds B. hundreds; hundreds C. hundreds; hundred, 月日年 在2008年10月1日,四.数词的表示法 年月日,on Octorber the first, two thousand and eight,on August the ninth,in May, two thousand and ten,有日用 on 无日用in,on Oct. 1st , 2008, 月日 在8月9日 月年 在2010年5月,1. The accident happened on_. A.
8、April 5, 2001 B. 2001, April 5 C. April 2001, 52. 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 1990s,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. There will be more chances in _ century than in _ century. A. twenty-
9、one, twenty B. twenty-first, twentieth C. the twenty-first, the twentieth2. The city changed a lot _. A. in 1980s B. in the 1980s C. in the 1980,3. He graduated in _ of _ century. A. the sixtieth; twenty B. sixty; the twentieth C. the sixties; the twentieth4. He got the prize _. A. in his fifties B.
10、 in fifties C. in his fifty,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,1. Its already 7:40 now. When will the film start? _. We still have five minutes. A. A quarter to seven B. Seven past forty-five C. A quarter
11、 to eight,15,分子 基数词分母 序数词,one fifth,27,分子 1分母 + s,two sevenths,14,分子 a分母 quarter,a quarter,34,three quarters,12,a half,13,three and one third,3,基数词 + and + 分数,四.数词的表示法 分数百分数,80 %,基数词 + percent,eighty percent,half / (百)分数 + of + 可数名词复数 谓语动词用复数half / (百)分数 + of + 不可数名词谓语动词用单数,3.78,three point seven ei
12、ght,1. _ of the students _ boys in Class A. Two three; are B. Two thirds; are C. Two thirds; is2. _ of her money _ spent on clothes. A. Two three; are B. Two thirds; is C. Two third; is3. _ the teachers in our school is about one hundred, and _ of them are women teachers. A. The number of; two third
13、 B. The number of ; two thirds C. A number of; two thirds,一个半小时两个半小时,two and a half hours= two hours and a half,one and a half hours= 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 hours2. The old man drank_ beer.
14、 A. two bottles and a half B. two and a half bottle C. two bottle and a half,一倍 once，两倍 twice，三倍 three times (三倍或以上 基数词times),四.数词的表示法 倍数,This box is five times as big as that one.=This box is four times bigger 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
15、倍,1. This building is _ that building. A. three time as tall as B. twice taller than C. three times as taller as2. 我的箱子比你的重六倍! My box is _ yours.,six times heavier than,seven times as heavy as,一般编码用 名词 + 基数词207房 三年级一班第五部分第一课3 号汽车第一中学,Room 207 Class one Grade threepart five = the fifth partlesson one
16、 = the first lesson Bus No.3 = the No.3 busNo. 1 Middle School,四.数词的表示法 编号, 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, The river is about _. A. 6,000 meters long B. 6,000-meters-long C. 6,000-meter-long,四.数词的表示法 计量,be + 数词 + 量词 + 形容词,
