小学英语数词复习课件ppt.pptx

《小学英语数词复习课件ppt.pptx》由会员分享，可在线阅读，更多相关《小学英语数词复习课件ppt.pptx（19页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、1小学英语数词复习课件小学英语数词复习课件2分类及定义分类及定义基数词基数词序数词序数词表示数量的多少表示数量的多少表示顺序的先后表示顺序的先后3基数词的用法基数词的用法构构成成基数词基数词1-12 1-12 是独立的单词是独立的单词one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve基数词基数词13-19是在个位数后面加是在个位数后面加-teen构成，其中构成，其中thirteen, fifteen, eighteen是不规则变化。是不规则变化。thirteen, fourteen, fifteen

2、, sixteen, seventeen, eighteen, nineteen整十的基数词整十的基数词20-90是在个位数词后面加是在个位数词后面加-ty构成，其中构成，其中twenty, thirty, forty, fifty, eighty是不规则变化。是不规则变化。twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety4非整十基数词非整十基数词21-99：十位数与个位数之间加上连字符：十位数与个位数之间加上连字符“-”。twenty-one, seventy-six, eighty-eight三位数以上的基数词，百位数

3、和十位数之间用三位数以上的基数词，百位数和十位数之间用and连接。连接。201：two hundred and one3514: three thousand, five hundred and fourteen98132: ninety-eight thousand, one hundred and thirty-two324901: three hundred and twenty-four thousand, nine hundred and one百：百：hundred千：千：thousand百万：百万：million十亿：十亿：billion万：万：ten thousand十万：十万

4、：one hundred thousand5hundredthousandmillion billion的用法的用法表示确切数字时，表示确切数字时，只用其单数形式只用其单数形式three hundredten thousand表示不确切数字时，要表示不确切数字时，要用其复数形式，并且与用其复数形式，并且与of连用，表示约数连用，表示约数hundreds ofmillions of典型例题典型例题 1T h e r e a r e m o r e t h a n _days in a year.A. three hundreds B. three hundred C. three hundred

5、s of D. three hundred of 典型例题典型例题 2 _visitors travel to the Great Wall every year.A.Thousands B. Thousands of C. Thousand D. Thousand of 6基数词表示编基数词表示编号号名词名词+ +基数词基数词（首字母大写）（首字母大写）Lesson Five 第五课 Room 306 306房间 Page Twelve 第十二页 Class One, Grade Six 六年级一班典型例题典型例题 1The first lesson is easier than_.A. L

6、esson sixB. Lesson Six C. lesson six D. lesson Six典型例题典型例题 2There are a lot of students in _. A. Grade Three, Class TwoB. Class Two, grade three C. Class Two, Grade threeD. Class Two, Grade Three7序数词的用法序数词的用法构构成成序数词序数词1-31-3是独立的单词是独立的单词first, second, third基数词基数词4-19是在基数词后面加是在基数词后面加-th构成，其中构成，其中fifth

7、, eighth, ninth, twelfth, thirteenth, fifteenth是不规则变化。是不规则变化。fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth,sixteenth, seventeenth, eighteenth, nineteenth整十的基数词整十的基数词20-90变序数词时，变变序数词时，变y为为i再加再加“eth”。twentieth, thirtieth, fortieth, fiftieth,

8、sixtieth21以上非整十基数词变序数词时，只需将其个位数变以上非整十基数词变序数词时，只需将其个位数变成序数词，其它位数仍用基数词。成序数词，其它位数仍用基数词。twenty-first, seventy-sixth, two hundred and eighty-eighth8常见的数词表达常见的数词表达日期的表达日期的表达月月日日年年日日月月年年2016年年10月月1日日October 1st, 20162016年年10月月1日日the first of October, 2016January, February, March, April, May, June, July, Au

9、gust, September, October, November, December9时间的表达时间的表达直接表达法直接表达法基数词基数词 + oclock来表示整点来表示整点eight oclock 8:00钟点钟点 + 分钟分钟eleven five 11:05six forty 6:40间接表达法间接表达法topast分钟数少于30分钟，分钟 + past + 钟点twenty past four 四点二十 eight past one 一点零八分分钟数多于30分钟，（60分钟-原分钟数）+ to +（原钟点数+ 1）twenty-five to nine 8:35十五分钟fifte

10、en/a quarter三十分钟thirty/half10年龄的表达年龄的表达“基数词基数词+years old”，“years old”也可以省略。也可以省略。The boy is twelve (years old). “在在年龄时年龄时”，用，用“at the age of +基数词基数词”表示。表示。He learned to play the piano at the age of six.“在在几十岁时几十岁时”，用，用“in ones +整十的复数整十的复数”表示。表示。The man died in his fifties.11“半半”的表达的表达一半：一半：half a/an

11、 +名词名词 或或 a half +名词名词half an hour 或或 a half hour 半小时半小时几个半：几个半：”基数词基数词 +名词名词+and a half“或或”基数词基数词+and a half+名词名词“two apples and a half 或或 two and a half apples 两个半苹果两个半苹果12数量词的用法数量词的用法表示长、宽、高，用表示长、宽、高，用“基数词基数词+单位词（单位词（meter, kilometer, foot, inch等）等）+形容词（形容词（long, wide, high等）等）” 表示。表示。two meters

12、long 两米长three inches high 三英尺高表示时间、距离时，用含有数词的名词所有格形式作定语。表示时间、距离时，用含有数词的名词所有格形式作定语。five minutes walk 步行五分钟 two hours ride 骑车两小时由数词和其它名词组成的复合数词，其中的名词用单数形由数词和其它名词组成的复合数词，其中的名词用单数形式，各部分之间用连字符式，各部分之间用连字符“-”来连接。来连接。a three-month-old baby 一个三个月大的婴儿a five-day holiday 五天的假期The building is ten meters high.（）T

13、his is a ten-meter-high building.（）The building is ten-meter-high.（）This is a ten meters high building.（）13次数的表达次数的表达一次：一次：once二次：二次：twice三次及以上：基数词三次及以上：基数词+times three times 三次三次 ten times 十次十次 twenty-eight times 二十八次二十八次14分数的表达分数的表达基数词基数词序数词序数词 1 1+ s1/3 one third 3/8 three eighths15倍数的表达倍数的表达A is

14、 +倍数倍数+as +形容词原级形容词原级+as B “A是是B的多少倍的多少倍”。This room is twice as big as that one. A is +倍数倍数 +形容词比较级形容词比较级+than B “A 比比B大（多、大（多、高高）多少倍）多少倍”。This car is three times more expensive than that truck.A is +倍数倍数 +the size/length/width/height+of B “A是是B（大小、长、宽、高）的多少倍（大小、长、宽、高）的多少倍”。The house is four times t

15、he size of that one.16171. Lincoln was born on _.A. February 12th, 1809B. 1809, February 12th C. 1809, 12th FebruaryD. February 1809,12th2. A _ boy can sing the English song very well.A. ten-years-oldB. ten years oldC. ten-year-oldD. ten year old3. -How many students are there in your class?-_.A. Tw

16、enty nine B. Thirty and twoC. Forty-five D. Fifties4. The number 4,123 is read _.A.four thousand one hundred and twenty-three B. four thousand and one hundred twenty-threeC.four thousand and a hundred and twenty-three D. four thousands a hundred and twenty-three5. Our school is not very big. There a

17、re only _ students.A. nine hundreds of B. nine hundred C. nine hundredsD. nine hundred of6. -How many new words are there in _ lesson?-There are only _.A. five; fifth B. fifth; five C. the fifth; the fiveD. the fifth; five7. There was no bus in that small town. We had a _.A. ten miles walkB. ten-mil

18、e walkC. ten miles walkD. tenth mile walk8. Which room do you live in? _.A. 201 Room B. Room 201 C. Room 201st D. 201s Room9. Three hundred thousand one hundred and seventy means _.A. 3,170 B. 3,117 C. 300,170 D. 30,17010. On May _, _ people traveled round the country.A. the first, millions B. the first, millions of C. first, the millionth D. first, millions1819家庭作业家庭作业自制思维导图自制思维导图综合练习综合练习