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1、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 围特 点实 例112无规律 one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve1319以teen为结尾
2、 thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen2090以ty结尾 twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety2199十位与个位之间要加连字符 “-” twenty-five, sixty-five, ninety-nine101999百位与十位之间通常用and three hundred and twenty-five（美语中常将and省略）千以上 6275six thousand two hundred and seventy
3、-five；1200twelve hundred（二）序数词：表示顺序的数词为序数词，它的构成如下表：范 围特 点实 例119各基数词尾加th其中七个例外：first, second, third, fifth, eighth, ninth, twelfth, 其余，如：four forth, six sixth, nineteen nineteenth20,3090把y变i后加eth twentieth, fortieth, ninetieth21以后多位数最后一个数用序数词，其余用基数词 21st twenty-first, 110th one hundred and tenth（三）数词
4、的用法：1.英语中年月日、点钟、序数词、分数词、算式列表示例英语表示法2001630June 30,2001 30June,2001 30thJune, 20017：25seven twenty-five twenty-five past even12:54twelve fifty four six to one9:15nine fifteen a quarter past nine2:30two thirty half past two21:50twenty-one fifty 9:50p.m.第21twenty-first第123one hundred and twenty-thirda
5、half two and two-fifths 20%20 per cent 20 percent第七路公共汽车Bus Number Seven第201房间Room 201人民路153号153 Renmin Road 4+8 =12 Four plus eight is twelve11-7=4Eleven minus seven is four.65=30Six times five is thirty.205=4twenty divided by five is four.ABA is more than B.ABA is less than B.ABA is approximately
6、(近似地, 大约)equals to B.ABA is not equal to B.2.约数表示法列表含义英语表达例句大于某数more than He has lived here for more than twenty years.overshe is over fifty.or moreTherere thirty people or more in the meeting-room.小于某数less thanI have less than (not more than )fifty dollars.underChildren under seven are not allowed
7、to enter.belowHe would not sell it for below a hundred fifty dollars.or lessThe coat might cost him sixty dollars or less.大约（某数）nearlyShe is nearly fifty now.almostIts almost three oclock.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
8、is twenty miles or so.aboutI visited that village about three years ago.someTheir team has some four or five players.more or lessThe container can hold more or less twenty pounds of water.around/roundLets make it round/around eight oclock.3.不定数量词“多”的表示法列表被修饰名词的数英语表达汉译修饰可数名词dozens of 几十、许多scores of 许
9、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thousands of ,thousands upon thousands of 成千上万millions of 数百万billions of 亿万修饰不可数名词much , a great (good)deal of ,a large amount of ,large amounts of 许多、大量修饰可数名词或不可数名词a lot of /lots of ,plenty of, a large quantity of , large quantities of
10、 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 peoples2. He was only in_ at the time.A. his 20s B. the 20sC. his twenties D. the twenties3. The two great men wrote those letters in_ .A. 1870s B. 1879s C. the 1870s D. t
11、he 18704. I wonder if I can ask him_ time. A. four B. fourth C. the fourth D. a fourth5. He came out_ in the track events. A. first B. one C. the first D. the one6. It was in 1939 that _broke out. A. World War Second B. the World War Second C. Second World War D. World War II7. Youll have to spend _
12、writing your report here. A. one day or two days B. one day or twoC. a day or two D. two days or one8. He cut the cake_ . A. in halves B. in half C. into halves D. into half9. 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 of1
13、0. 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 out11. _of the population here are peasants. A. 20 percents B. 20 percentC. the 20 percent D. the 20 percents12. Its about_ , the thickness of a h
14、uman hair. A. two-fifteenth B. two-fifteenths C. two fifteen D. two fifteens13. The price of such material was reduced_ . A. by 18 percent B. to 18 percent C. at 18 percent D. for 18 percent14. South of the equator, 81 percent of the surface of the earth_ water. A. is B. are C. was D. were15. They sold _boxes of such sweets last week. A. four dozen B. four dozens C. four dozens of D. four dozen of16. It took me _ days to finish drawing a beautiful horse. A. a half dozen B. half a dozen C. haft dozens
