小学英语专项训练课件-基数词序数词_通用版
(完整word版)基数词序数词讲解与练习

基数词序数词的解说1.基数词表示数量的词称为基数词。
其形式以下:A.从 1—— 10one,two, three,four,five ,six,seven, eight,nine,ten.B.从 11—— 19eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen,eighteen, nineteen.这里除eleven, twelve, thirteen, fifteen , eighteen 为特别形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后增添后缀-teen 组成。
C.从 21—— 99整数几十中除twenty,thirty, forty ,fifty ,eighty 为特别形式外, sixty,seventy,ninety 都是其个位数形式后增添后缀-ty 组成。
表示几十几时,在几十和个位基数词形式之间增添连字符“-”21twenty-one76seventy-sixD.百位数个数基数词形式加“hundred,”表示几百,在几十几与百位间加上and.101 a hundred and one320 three hundred and twenty648 six hundred and forty-eightE.千位数以上从数字的右端向左端数起,每三位数加一个逗号“,”。
从右开始,第一个“,”前的数字后增添thousand,第二个“,”前面的数字后增添million ,第三个“,”前的数字后增添billion 。
2,648two thousand six hundred and forty-eight16,250,064 sixteen million two hundred and fifty thousand and sixty-four 5,237,166,234five billion two hundred and thirty-seven million one hundred and sixty-six thousand two hundred and thirty-fourF.基数词在表示切实的数字时,不可以使用百、千、百万、十亿的复数形式;可是,当基数词表示不切实数字,如成百、不计其数,寥寥无几时,基数词则以复数形式出现。
2023年小升初英语基数词变序数词课件

1-10
•one two hree four five •six seven eight nine ten
11-19 • eleven twelve thirteen
fourteen fifteen
• sixteen seventeen eighteen nineteen
1.Tom is 5 years old. It's his ___ birthday . A. five B. fiveth C.fifth 2.It's my ___ time to work with you. A. a B. one C. first 3. Is Sunday the ____ day of the week? A. a B. one C. first 4.The yellow river is the _____ longest river in China. A. two B. second C. third 5.March the _____month of the year. A. third B. three C. 3
有迹可循
➢一,二,三,特殊记,词尾字母t,d, d。
➢八去t,九除e,ve要用f替,y要改为ie, 再把th后面加。
eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen
eleventh 11st twelfth 12nd thirteenth 13rd fourteenth 14th fifteenth 15th sixteenth 16th seventeenth 17th eighteenth 18th nineteenth 19th
(完整版)小学英语中的基数词和序数词(附带练习题)(最新整理)

小学英语中的基数词和序数词定义表示数目的词是基数词。
构成最基本的数词如下:1 one,2 two,3 three,4 four,5 five,6 six,7 seven,8 eight,9 nine, 10 ten, 11 eleven, 12 twelve, 13 thirteen, 14 fourteen, 15 fifteen, 16 sixteen, 17 seventeen, 18 eighteen, 19 nineteen, 20 twenty, 30 thirty, 40 forty, 50 fifty, 60 sixty, 70 seventy, 80 eighty, 90 ninety, 100 a hundred, 1,000 a thousand, 1,000,000 a million, 1,000,000,000 a billion.基数词1-12 是独立单词,需逐个记忆。
基数词13 - 19 是个位数词的词干后加-teen 构成。
其中thirteen, fifteen, eighteen 变化不规则。
基数词20—90 是在十位数词后面加-ty 构成。
基数词21—99 是在十位数词后面加上个位数词合成,中间加上连字符“–”。
例如:21 twenty-one 95 ninety-five基数词三位以上的数词, 在百位和十位之间,一般要用连词“and”。
例如:132 one hundred and thirty-two.1340 one thousand three hundred and forty表示“万”的词英语中没有。
如 1 万可用10 千来表示:ten thousand。
30万可用three hundred thousand 来表示。
基数词的用法:从句子成分上分析,基数词在句中可用作主语,宾语,表语等。
Four of them went to the factory. 他们四个人去了工厂。
基数词和序数词专项训练

基数词和序数词专项训练
《基数词和序数词的奇妙世界》
嘿,同学们!你们知道吗?在数学的王国里,基数词和序数词就像是一对神奇的双胞胎兄弟,它们长得有点像,可又不太一样。
这可太有趣啦!
先来说说基数词吧,像1、2、3、4、5 等等,这些都是基数词。
它们就像是一群小士兵,整整齐齐地站在那里,告诉我们数量的多少。
比如说,我有5 个苹果,这里的“5”就是基数词,是不是很简单?
那序数词呢?像第一、第二、第三、第四、第五等等,它们可就更特别啦!序数词就像是给小士兵们排了个队,告诉我们它们的顺序。
比如说,我在跑步比赛中得了第二名,这里的“第二”就是序数词。
有一次上数学课,老师问我们:“如果有8 个小朋友排队,小明排在第6 个,那前面有几个人呀?”这可把好多同学都难住啦!我心里想:“这还不简单?8 个人,小明排在第6 个,那前面不就有5 个人嘛!”我赶紧举起手回答,老师还表扬了我呢!
还有一次,我和小伙伴们一起玩游戏,我们要按照顺序来,这时候序数词可就派上大用场啦!小红说:“我要第一个玩!”小刚说:“那我第二个!”大家你争我抢,好不热闹。
我觉得呀,基数词和序数词就像是数学世界里的魔法咒语,只要我们掌握了它们,就能解开很多数学难题。
它们就像我们的好朋友,一直陪伴着我们在数学的海洋里遨游。
你们想想,要是没有基数词和序数词,我们怎么能清楚地知道有多少东西,或者东西的顺序呢?那不就乱套啦!
所以呀,同学们,我们一定要好好掌握基数词和序数词,让它们成为我们学习数学的有力武器!这样,我们就能在数学的世界里畅行无阻,变得越来越聪明啦!你们说对不对?。
英语基数词和序数词专项练习

英语基数词和序数词专项练习一.基数词。
1. 默写数字1-12__________________________________________________________________________________________________________________________________________2. 默写数字13-19__________________________________________________________________________________________________________________________________________3. 默写整十。
20__________________ 30___________________ 40___________________50___________________ 60___________________ 70___________________80___________________ 90___________________ 100___________________三、写出下列数字。
21___________________ 32___________________ 43___________________ 54___________________ 65___________________ 76___________________ 87___________________ 98___________________ 101__________________ 210___________________________ 375__________________________________四、把下列基数词改成序数词。
one two threefive nine eightfourteen twentythirty-five seventy-two五、写出下列序数词的缩写形式或完整形式。
小学英语专项训练课件-基数词序数词_通用版

two---second four---fourth six---sixth eight---eighth •ten----tenth
twenty---twentieth forty---fortieth sixty---sixtieth eighty---eightieth
一千亿
one hundred billion
数十/百/千/百万tens/ hundreds/thousands/ millions of
123 ,456 , 789 , 103
Step1:one hundred and twenty-three billion,
Step2:four hundred and fifty-six million, Step3:seven hundred and eighty-nine thousand,
What is the largest / smallest 4-digit number?
9831
1389
8 193
Let’s do a practice!
face to face number to number
序数词
•one ---first three---third five---fifth seven---seventh
hundred
看谁译得快:
一百
one hundred
一千
one thousand
一万
ten thousand
十万
one hundred thousand
一百万
one million
一千 万
ten million
一亿
one hundred million
小学英语数词及专项训练.pdf

小学英语数词及专项训练一、数词的分类:基数词和序数词。
基数用于表示数量多少,而基数词用于表示次序,常在日期中出现。
区别:基数词前面没有“the”;序数词前一定要有“the”。
1、超过二十以上的两位数需要在个位和十位之间加上“-”。
如:21 twenty-one2、用基数词来修饰可数名词时,一定别忘了它的复数形式。
如:十八个男孩 eighteen boys3、用基数词修饰不可数名词时,如是复数,变它的量词为复数。
如:两碗米饭 two bowls of rice4、序数词一般加“th”,特殊的有:first, second, third, fifth, eighth, ninth, twelfth;二十及二十以外的整十:twentieth, thirtieth, fortieth…“第几十几”:前面整十不变,后面“几”改为序数词。
如:88 eighty-eighth巧记基数词和序数词:1,2,3,特殊记,加th从4起; 8少t,9去e,逢5逢12ve变f;20~90,y要变ie;若是几十几,前基后序别倒位.二、数词的表示方法:基数词序数词对照表1 one first 1th2 two second 2nd3 th ree th ird3rd4 four four th4th5 fi ve fi fth5th6 six six th6th7 seven seven th7th8 eight eight h8th9 nin e nin th9th10 ten ten th10th11 eleven eleven th 11th12 twel ve twel fth12th13 thirteen thirteen th13th14 fourteen fourteen th14th15 fifteen fifteen th15th16 sixteen sixteen th16th17 seventeen seventeen th17th18 eighteen eighteen th18th19 nineteen nineteen th19th20 twent y twent ieth20th21 twenty-one twenty-first 21st22 twenty-two twenty-second22nd23 twenty-three twenty-third23rd24 twenty-four twenty-four th24th25 twenty-five twenty-fifth25th26 twenty-six twenty-six th26th27 twenty-seven twenty-seven th27th28 twenty-eight twenty-eight h28th29 twenty-nin e twenty-nin th29th30 thirt y thirt ieth30th40 fort y fort ieth40th50 fift y fift ieth50th60 sixt y sixt ieth60th70 sevent y sevent ieth70th80 eight y eight ieth80th90 ninet y ninet ieth90th100 one hundred one hundredth 100th三、数词的用法1. 章节、页数的读法第一章:the first chapter ; Chapter One第二节:the second section ; Section Two第三课:the third lesson ; Lesson Three第463页:page four six three第2564页:page two five six four或twenty-five sixty-four注意:如果页码的数字较长,通常用基数词。
(完整版)基数词和序数词专项练习题

(完整版)基数词和序数词专项练习题基数词和序数词专项练习题一、知识归纳①基数词变序数词的规律:口诀:基变序,有规律。
一、二、三、特殊记,词尾字母t,d,d. (如:first, second, third)。
八减t,九去e,(如:eighth, ninth), f来把ve替。
(如:twelfth).单词ty作结尾,ty变成tie(如:twentieth).若是碰到几十几,只变个位就可以。
(如:twenty-first)②1-100的序数词:1st--first;2nd--second;3rd--third;4th--fourth;5th--fifth;6th--sixth;7th--seventh;8th--eighth;9th--ninth;10th--tenth;11th--eleventh;12th--twelfth;20th--twentieth;21st--twenty-first;22nd--twenty-second;29th--twenty-ninth;30th--thirtieth;31st--thirty-first;40th--fortieth;50th--fiftieth;60th--sixtieth;70th--seventieth;80th--eightieth;90th--ninetieth;100th--hundredth二、巩固练习:①写出下列词的序数词形式。
1. one2.two3.six 4.five 5.nine 6.twelve 7.eight 8.twenty -one②写出下列单词的基数词形式。
1.third2.fourth3.tenth4.twentieth 5.nineteenth 6.thirty-first _③根据句子意思填空。
1. Children’s Day(儿童节) is on the of June(六月).2. There are months(月)in a year(年).3. Teacher’s Day(教师节) is on the of September (九月).4. Three plus(加) six is .④选择填空。
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What is the largest / smallest 4-digit number?
9831
1389
8 193
Let’s do a practice!
face to face number to number
序数词
•one ---first three---third five---fifth seven---seventh
•I’m hungry. I’ve eaten three apples. Would you please give me a_f_o_u_r_t_h_ one? •At the beginning of the _t_w_e_n_t_y_-_f_i_r_s_t_ century the
world’s population has passed 6 billion. •He got off this bus and got on a s_e__c_o_n_done.
Can you write their ordinal numbers?
2
12
72
9
19
90
5
8
18
14
40
44
100
101 1000
Practice:
•December is the _t_w_e_l_f_t_h_ month of the year. •Monday is the _s_e__c_o_n_dday of the week. •English is spoken by most people as their _f_i_r_s_t__
数词
LOGO
什么是数词?
• 表示数目多少或顺序多少的词叫数词, 数词分为基数词和序数词。表示数目 多少的数词叫基数词;表示顺序的数 词叫序数词。
基数词
one five
three
eight four
seven six
zero one nine eight
seven six
two three four
nine---ninth
two---second four---fourth six---sixth eight---eighth •ten----tenth
twenty---twentieth forty---fortieth sixty---sixtieth eighty---eightieth
Step4:one hundred and three
Look and Practice
625 six hundred and twenty-five
8,961 eight thousand, nine hundred
and sixty-one 95,680
ninety-five thousand, six hundred and eighty
thirty---thirtieth fifty---fiftieth seventy---seventieth ninety---ninetieth
ቤተ መጻሕፍቲ ባይዱ
second
first
third
tenth
fourth
ninth eighth
fifth
sixth seventh
second
first
third
4
one billion
Can you read them ?
billion million thousand
100 2,000 30,000 400,000 5,000,000 60,000,000 700,000,000 8,000,000,000 90,000,000,000 100,000,000,000
ten sixty
thirty
forty
seventy
One hundred
eighty
fifty
ninety
twenty
Dragon
• 1-100
Look and Read
100
1
one hundred
1,000
2
one thousand
3 1,000,000 one million
1,000,000,000
hundred
看谁译得快:
一百
one hundred
一千
one thousand
一万
ten thousand
十万
one hundred thousand
一百万
one million
一千 万
ten million
一亿
one hundred million
十亿
one billion
一百亿
ten billion
Look and Practice
6,302,876 six million, three hundred and two thousand, eighty hundred and seventy-six
45,690,510,810 forty-five billion ,six hundred and ninety million, five hundred and ten thousand ,eight hundred and ten
language in the USA, Great Britain, Australian,
and Canada. •The Games of the t_w__e_n_t_y_-_n_i_n_t_h_ Olympic in 2008
will be held in the city of Beijing.
tenth ninth
ordinal numbers
eighth seventh
fourth fifth sixth
ordinal numbers(序数词 )
一、二、三,特殊记, 加th从4起, 八少“t”,九去“e”, “ve”要用“f”替,(five, twelve) 见“y”变成“i”和“e”,词尾加上 “th”, (twenty,thirty,---ninety) 若是遇到几十几,只变个位就可 以。
five
zero one two
nine
three
numbers
eight
four
seven six five
Numbers are widely used.
Hello , 86861873 ---
Let’s sing a song !
Title
Number song
Let’s count!
• 1-10 • one two three four five • six seven eight nine ten
11-19 eleven twelve thirteen forteen fifteen sixteen seventeen eighteen nineteen
Let’s review
一千亿
one hundred billion
数十/百/千/百万tens/ hundreds/thousands/ millions of
123 ,456 , 789 , 103
Step1:one hundred and twenty-three billion,
Step2:four hundred and fifty-six million, Step3:seven hundred and eighty-nine thousand,
LOGO