高中英语 数词专题教案

高中英语数词专题教案适用学科英语适用年级高二教师姓名适用区域珠海课时时长2小时学生姓名知识点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。

教学目标使学生掌握数词的用法教学重点掌握基数词、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。

教学难点熟练使用数词。

教学过程一、复习预习高考重点要求：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。

二、知识讲解与例题精析（一）基数词：表示数目的词为基数词，它的构成如下表：（二）序数词：表示顺序的数词为序数词，它的构成如下表：（三）数词的用法：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2001．6．30 June 30,2001 30June,2001 30thJune, 2001 7：25 seven twenty-five twenty-five past even 12:54 twelve fifty four six to one 9:15 nine fifteen a quarter past nine 2:30 two thirty half past two 21:50 twenty-one fifty 9:50p.m. 第21 twenty-first第123one hundred and twenty-thirda halftwo and two-fifths 20%20 per cent 20 percent 第七路公共汽车 Bus Number Seven 第201房间Room 20121522范 围 特 点 实 例1~12 无规律one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve13~19 以teen 为结尾 thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen 20~90 以ty 结尾 twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety21~99十位与个位之间要加连字符 “-” twenty-five, sixty-five, ninety-nine101~999百位与十位之间通常用andthree hundred and twenty-five （美语中常将and 省略）千以上6275—six thousand two hundred and seventy-five ；1200—twelve hundred人民路153号153 Renmin Road4+8 =12 Four plus eight is twelve11-7=4 Eleven minus seven is four.6×5=30 Six times five is thirty.20÷5=4 twenty divided by five is four.A＞B A is more than B.A＜B A is less than B.A≈B A is approximately (近似地, 大约)equals to B.A≠B A 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.over she is over fifty.or more There're thirty people or more in the meeting-room.小于某数less than I have less than (not more than )fifty dollars.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.大约（某数）nearly She is nearly fifty now.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/roundLet'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英语表达汉译修饰可数名词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thousands of ,thousands upon thousands of 成千上万millions of 数百万billions of 亿万much , a great (good)deal of ,修饰不可数名词许多、大量a large amount of ,large amounts ofa lot of /lots of ,plenty of, a large quantity of ,许多、大量修饰可数名词或不可数名词large quantities of三、课堂运用1. Two __died of cold last winter.A. hundreds old peopleB. hundred old peopleC. hundreds old peoplesD. hundred old peoples2. He was only in__ at the time.A.his 20'sB. the 20'sC. his twentiesD. the twenties3. The two great men wrote those letters in__ .A. 1870'sB. 1879sC. the 1870'sD. the 18704. I wonder if I can ask him__ time.A. fourB. fourthC. the fourthD. a fourth5. He came out__ in the track events.A. firstB. oneC. the firstD. the one6. It was in 1939 that __broke out.A. World War SecondB. the World War SecondC. Second World WarD. World War II7. You'll have to spend __writing your report here.A. one day or two daysB. one day or twoC. a day or twoD. two days or one8. He cut the cake__ .A. in halvesB. in halfC. into halvesD. into half9. The earth is nearly__ the moon.A. 50 time the size ofB. 50 times the size ofC. 50 times as size asD. 50 times as that of10. Either you or the headmaster __the prizes for these gifted students at the meeting.A. is handing inB. are to hand outC. are handing inD. is to hand out11. __of the population here are peasants.A. 20 percentsB. 20 percentC. the 20 percentD.the 20 percents12. It's about__ , the thickness of a human hair.A. two-fifteenthB. two-fifteenthsC. two fifteenD. two fifteens13. The price of such material was reduced__ .A. by 18 percentB. to 18 percentC. at 18 percentD.for 18 percent14. South of the equator, 81 percent of the surface of the earth__ water.A. isB. areC. wasD. were15. They sold __boxes of such sweets last week.A. four dozenB. four dozensC. four dozens ofD. four dozen of16. It took me __ days to finish drawing a beautiful horse.A. a half dozenB. half a dozenC. haft dozensD. half dozen17.__people were sent there to help fight against the flood.A. Three scores ofB. Three score ofC. Three scoreD. Three scores18. Don't leave you work,__ .A. done halfB. half doneC. a half doneD. done a half19. Nobody can do two things well __ .A. at one timeB. at onceC. one timeD. once20. He has__ books in his study.A. several thousandsB. some thousands ofC. some thousandsD. some thousand of21.On National day__ people take part in all kinds of celebration.A. hundreds of millions ofB. millions of hundred ofC. hundreds millions ofD. millions hundreds of22. He has lived at__ for 30 years.A. No. 101 Heping StreetB. 101 Heping StreetC. Heping Street 101D. Heping street No. 10123. You can find him in__ .A. Room 201B.201 RoomC. the Room 20D. the 201 Room24. It's__ walk from here to my school.A. two - hoursB. two hoursC. two - hourD. a two - hour25. It was in__ when he was already in ___ that he went to Yan'an.A. the 1940s, the 40sB. the 1940s, his fortiesC. 1940's, his fortiesD. the 1940's, his 40s课程小结课后作业1. He went to the market and bought __eggs and some meat.A. three dozen ofB. three dozenC. three dozensD. three dozens of2.Shortly after the accident two ___police were sent to the spot to keep order.A. dozen ofB. dozensC. dozenD. dozens of (MET92 29)3.Mr Smith ___me to buy several __eggs for the dinner.A. asked, dozenB. suggested, dozens ofC. had, dozenD. persuaded, dozens of ('94上海)4.____of the land in that district ___covered with trees and grass.A. Two fifth, isB. Two fifth, areC. Two fifths , isD. Two fifths, are (2000上海)5.Two ___died of cold last winter.A. hundreds old peopleB. hundred old peopleC. hundred old peoplesD. hundred old peoples ('88MET.15)6.It is not rare in ___that people in ____fifties are going to university for further education.A.90s,theB. the 90s, /C.90s, theirD. the 90s, their ('99上海6)7..-Have you seen many sheep in the distance ?-Yes, ___.A. thousand of themB. two thousands of themC. two thousand of themD. two thousand them。