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语法复习十八:数 词
高考重点要求:
1.掌握基数词、序数词、分数词、倍数、百分数、年月日、钟点、年龄、序号的基本用法。 2.掌握不定数量词、约数词的表达方法。
数词在各个题项中,单选、阅读、听力、写作中发挥着很强的作用,往往用以说明事实的精确性和可信性。数词是由两大部分构成的即基数词和序数词,而其他数字表示法如分数,小数等均由这两大部分的不同组合而构成。
(一)基数词:表示数目的词为基数词,它的构成如下表: 范 围 1~12 13~19 20~90 21~99 101~999 千以上
特 点 无规律 以ty结尾 实 例 one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety 以teen为结尾 thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen 十位与个位之间 twenty-five, sixty-five, ninety-nine 要加连字符 “-” 百位与十位之间 three hundred and twenty-five(美语中常将and省略) 通常用and 6275—six thousand two hundred and seventy-five;1200—twelve hundred 实 例 其中七个例外:first, second, third, fifth, eighth, ninth, twelfth, 其余,如:four — forth, six — sixth, nineteen — nineteenth (二)序数词:表示顺序的数词为序数词,它的构成如下表: 范 围 1~19 特 点 各基数词尾加th 20,30~90 把y变i后加eth twentieth, fortieth, ninetieth 21以后最后一个数用序数 21st — twenty-first, 110th — one hundred and tenth 多位数 词,其余用基数词
(三)数词的用法:
示例 2001.6.30 7:25 12:54 9:15 2:30 21:50 第21 第123
英语表示法
June 30,2001 30June,2001 30thJune, 2001 seven twenty-five twenty-five past even twelve fifty four six to one nine fifteen a quarter past nine two thirty half past two twenty-one fifty 9:50p.m. twenty-first
one hundred and twenty-third a half
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1.英语中年月日、点钟、序数词、分数词、算式列表
12
2two and two-fifths
5 20% 20 per cent 20 percent 第七路公共汽车 Bus Number Seven
Room 201 第201房间
人民路153号 153 Renmin Road 4+8 =12 Four plus eight is twelve 11-7=4 Eleven minus seven is four.
Six times five is thirty. 6×5=30
twenty divided by five is four. 20÷5=4
A is more than B. A>B
A is less than B. A<B
A≈B A is approximately (近似地, 大约)equals to B.
A is not equal to B. A≠B 2 2.约数表示法列表
含义 英语表达 例句
more than He has lived here for more than twenty years. 大于某数
over she is over fifty. or more There're thirty people or more in the meeting-room.
less than I have less than (not more than )fifty dollars. 小于某数
under Children under seven are not allowed to enter. below He would not sell it for below a hundred fifty dollars. or less The coat might cost him sixty dollars or less.
She is nearly fifty now. 大约(某数) nearly
almost Its almost three o'clock. up to Up to ten men can sleep in this tent. or He spent four or five days writing the article. or so The distance is twenty miles or so. about I visited that village about three years ago. some Their team has some four or five players. more or less The container can hold more or less twenty pounds of water. around/round Let's make it round/around eight o'clock.
3.不定数量词“多”的表示法列表
被修饰名词的数 修饰可数名词
汉译
dozens of 几十、许多 scores of 许多
many, a good(great) many, many a (饰单数可数名词) 许多、大量 hundreds of 数以百计
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英语表达
thousands of ,thousands upon thousands of millions of billions of
much , a great (good)deal of ,
修饰不可数名词
a large amount of ,large amounts of
a lot of /lots of ,plenty of, a large quantity of ,
修饰可数名词或不可数名词
large quantities of
成千上万 数百万 亿万 许多、大量 许多、大量
练习、数 词
1. Two __died of cold last winter.
A. hundreds old people B. hundred old people C. hundreds old peoples D. hundred old peoples 2. He was only in__ at the time.
A. his 20's B. the 20's C. his twenties D. the twenties 3. The two great men wrote those letters in__ . A. 1870's B. 1879s C. the 1870's D. the 1870 4. I wonder if I can ask him__ time. A. four B. fourth C. the fourth D. a fourth 5. He came out__ in the track events. A. first B. one C. the first D. the one 6. It was in 1939 that __broke out.
A. World War Second B. the World War Second C. Second World War D. World War II 7. You'll have to spend __writing your report here. A. one day or two days B. one day or two C. a day or two D. two days or one 8. He cut the cake__ . A. in halves B. in half C. into halves D. into half 9. The earth is nearly__ the moon.
A. 50 time the size of B. 50 times the size of C. 50 times as size as D. 50 times as that of 10. Either you or the headmaster __the prizes for these gifted students at the meeting. A. is handing in B. are to hand out C. are handing in D. is to hand out 11. __of the population here are peasants. A. 20 percents B. 20 percent C. the 20 percent D. the 20 percents 12. It's about__ , the thickness of a human hair.
A. two-fifteenth B. two-fifteenths C. two fifteen D. two fifteens 13. The price of such material was reduced__ .
A. by 18 percent B. to 18 percent C. at 18 percent D. for 18 percent 14. South of the equator, 81 percent of the surface of the earth__ water.
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A. is B. are C. was D. were 15. They sold __boxes of such sweets last week. A. four dozen B. four dozens C. four dozens of D. four dozen of 16. It took me __ days to finish drawing a beautiful horse. A. a half dozen B. half a dozen C. haft dozens D. half dozen 17.__people were sent there to help fight against the flood.
A. Three scores of B. Three score of C. Three score D. Three scores 18. Don't leave you work,__ . A. done half B. half done C. a half done D. done a half 19. Nobody can do two things well __ . A. at one time B. at once C. one time D. once 20. He has__ books in his study.
A. several thousands B. some thousands of C. some thousands D. some thousand of 21. On National day__ people take part in all kinds of celebration. A. hundreds of millions of B. millions of hundred of C. hundreds millions of D. millions hundreds of 22. He has lived at__ for 30 years.
A. No. 101 Heping Street B. 101 Heping Street C. Heping Street 101 D. Heping street No. 101 23. You can find him in__ .
A. Room 201 B.201 Room C. the Room 20 D. the 201 Room 24. It's__ walk from here to my school.
A. two - hours B. two hours C. two - hour D. a two - hour 25. It was in__ when he was already in ___ that he went to Yan'an.
A. the 1940s, the 40s B. the 1940s, his forties C. 1940's, his forties D. the 1940's, his 40s 26. He went to the market and bought __eggs and some meat. A. three dozen of B. three dozen C. three dozens D. three dozens of 27.Shortly after the accident two ___police were sent to the spot to keep order. A. dozen of B. dozens C. dozen D. dozens of 28.Mr Smith ___me to buy several __eggs for the dinner.
A. asked, dozen B. suggested, dozens of C. had, dozen D. persuaded, dozens of 29.____of the land in that district ___covered with trees and grass. A. Two fifth, is B. Two fifth, are C. Two fifths , is D. Two fifths, are 30.Two ___died of cold last winter. A. hundreds old people B. hundred old people
C. hundred old peoples D. hundred old peoples
31.It is not rare in ___that people in ____fifties are going to university for further education. A.90s,the B. the 90s, / C.90s, their D. the 90s, their 32.-Have you seen many sheep in the distance ? -Yes, ___. A. thousand of them B. two thousands of them
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