内容正文:
基数词有哪些?
one、two、three、four、five、six、seven、eight、nine、ten、eleven、twelve、thirteen、fourteen、fifteen、sixteen、seventeen、eighteen、nineteen、twenty......
基数词词尾+th
1
four
four
第四
缩写:4th
six
six
第六
缩写:6th
th
th
序数词有哪些?
一二三特别记
2
one
first
第一
缩写:1st
two
second
第二
缩写:2nd
three
third
第三
缩写:3rd
序数词有哪些?
ve要用f替后面+th
3
five
fi
第五
缩写:5th
twelve
twel
第十二
缩写:12th
ve
f
th
ve
f
th
eight
eigh
第八
缩写:8th
nine
nin
第九
缩写:9th
t
th
e
th
八去t, 九除e
4
序数词有哪些?
整十数(以 y 结尾)的变化规则
5
twenty-one
第二十一
缩写:21st
thirty-two
第三十二
缩写:32nd
twenty-first
thirty-second
非整十 “几十几” 的变化规则
6
twenty
twent
第二十
缩写:20th
thirty
thirt
第三十
缩写:30th
ieth
ieth
序数词有哪些?
方面 基数词 序数词
含义 表示 “有多少个”(数量) 表示 “是第几个”(顺序)
常见搭配 后面接可数名词复数 后面接可数名词单数,常和 “the” 连用
结尾标志(英文) 无特殊结尾 有 st/nd/rd/th 后缀
中文关键词 一、二、三、十 第一、第二、第三、第十
基数词和序数词的区别
基数词和序数词
的核心用法
基数词的核心用法(表 “数量多少”)
一
后面接可数名词复数(表示多个事物)。
表示 “年龄” 时,直接用 “基数词 + years old”。
表示 “编号” 时,可放在名词后面(如 Class 2)
I have two bags.
我有 2 个书包。
数量搭配:
表达年龄:
I am ten years old.
我 10 岁了。
表示编号:
I am in Class Three.我在 3 班。
序数词的核心用法(表 “顺序第几”)
二
前面通常加 the(特指某一个顺序)。
后面接可数名词单数。
表示 “日期” 时,常用序数词(如 5 月 1 日 = May 1st)。
表示 “楼层” 时,用序数词(如 the 2nd floor)。
表达日期:
My birthday is on June 3rd.
我的生日在 6 月3号。
This is the first class.这是第一节课。
顺序搭配:
表示楼层:
His home is on the fifth floor.
他家在第5楼。
基数词和序数词
常见易错点
名词单复数用错
1
错误案例:
I have three book.
正确形式:
I have three books.
年龄表达多余用词
2
错误案例:
I am the ten years old. /
I am the tenth years old.
正确形式:
I am ten years old.
基数词易错点
编号表达位置搞反
3
错误案例:
the Three Class
正确形式:
Class Three
基数词易错点
漏掉或多余加 “the”
1
错误案例:
This is first book.
正确形式:
This is the first book.
名词单复数用错
2
错误案例:
the fifth apples
正确形式:
the fifth apple
This is the my first book.
This is my first book.
序数词易错点
特殊序数词拼写错误
3
错误案例:
把 first 写成 one-th
把 second 写成 two-th
把 fifth 写成 five-th
把 eighth 写成 eight-th(多了一个 t)
把 ninth 写成 nine-th(多了一个 e)
序数词易错点
数量和顺序搞反
1
错误案例:
There are the three boys in the room.
正确形式:
There are three boys
in the room.
后缀标志混淆
2
错误案例:
给基数词加 th,
或给序数词漏加 th。
区分技巧:
只有序数词有 st/nd/rd/th 后缀,基数词没有。
基数词 five 写成 fiveth;序数词 fifth 写成 five。
跨类易错点
基数词和序数词
基础练习题
1. one → ____________
2. two → ____________
3. three → ____________
4. four → ____________
5. five → ____________
6. six → ____________
7. seven → ____________
8. eight → ____________
9. nine → ____________
10. ten → ____________
一. 写出下列名词的所有格形式
first
second
fourth
third
fifth
seventh
sixth
tenth
eighth
ninth
三、 选择填空
(用基数词或序数词的正确形式)
There are ______ (five / the fifth) birds in the tree.
I am ______ (twelve / the twelfth) years old.
This is _________ (the second / second) pen.
He is ________ (the third / three) student to come to school.
Today is October ______ (one / the first).
five
twelve
the third
the second
the first
二、写出下列序数词对应的基数词
1. first → ____________
2. third → ____________
3. fifth → ____________
4. eighth → ____________
5. tenth → ____________
one
three
eight
five
ten
6. twelfth → ____________
7. thirteenth → ____________
8. fifteenth → ____________
9. eighteenth → ____________
10. twentieth → ____________
twelve
thirteen
eighteen
fifteen
twenty
四、 判断对错
(对的打√,错的打 × 并改正)
I am the ten years old. ( ) ________________________
This is the fifth apple. ( ) ________________________
She has three pencil. ( ) ________________________
He is first in the race. ( ) ________________________
Class Five is on the second floor. ( ) ________________________
I am ten years old.
She has three pencils.
He is the first in the race.
√
×
×
√
×
1. The is in the ________ place.
second
2. The is in the ________ place.
third
3. The is in the ________ place.
fifth
4. The is in the ________ place.
sixth
5. The is in the ________ place.
fourth
基数词
two
twentieth
ninth
second
seven
twelfth
six
序数词
基数词
twentieth
ninth
second
seven
twelfth
six
序数词
基数词
twentieth
ninth
seven
twelfth
six
序数词
基数词
twentieth
ninth
seven
six
序数词
基数词
twentieth
ninth
seven
序数词
基数词
twentieth
ninth
序数词
基数词
twentieth
序数词
four
0
1
2
3
4
5
6
7
8
9
10
1
2
3
4
How many tomatoes are there?
three
0
1
2
3
4
5
6
7
8
9
10
How many peaches are there?
1
2
3
How many lettuces are there?
seven
0
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
How many grapes are there?
ten
0
1
2
3
4
5
6
7
8
9
10
2
3
4
5
6
7
8
9
1
10
How many strawberries are there?
nine
0
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
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