序数词变化复习
代理商合同-
(
基数词、序数词专项练习
)
学校：
班级：
姓名：
< br>一．序数词表示顺序，一般需用定冠词
the;
（如
It
’
s on the first
floor
。它在一楼。）
二．特殊变化的基数词
one--
first(1st) two--second(2nd) three--third(3rd)
five--fifth(5th)
eight--
eighth(8th)
nine--ninth(9th)
twelve--twelfth(12th)
twent
y
--twent
ie
th(20th) thirt
y<
/p>
--thirt
ie
th(30th)
fort
y
--fort
ie
th(40th) fif
ty
--fift
ie
th(50th) s
ixt
y
--sixt
ie
th(60th) sevent
y
--se
vent
ie
th(70th)
eight
y
--eight
ie
th(80th) ninet
y
--ninet
ie
th(90th)
三．基数词、序数词对照表
1.(one)first
第一
(two)second
第二
(three)third
第三
(four)fourth
第四
(five)fifth
第五
(six)sixth
第六
(seven)seventh
第七
(eight)eighth
第八
(nine)ninth
第九
(ten)tenth
第十
(el
even)eleventh
第十一
(twelve)twelfth
第十二
(thirteen)thirteenth
第十三
(fourteen)fourteenth
第十四
(fifteen)fifteenth
第十五
(sixteen)sixteenth
第十六
(seventeen)seventeenth
第十七
(eighteen)eighteenth
第十八
(nineteen)nineteenth
第十九
(twenty)twentieth
第二十
(thirty)thirtieth
第三十
(forty)fortieth
第四十
(fifty)fiftieth
第五十
(sixty)sixtieth
第六十
(seventy)seventieth
第七十
(eighty)eightieth
第八十
(ninety)ninetieth
第九十
2.(twenty-one)twenty-
first
第二十一
(twenty-
two)twenty-second
第二十二
(twenty-three)twenty-
third
第二十三
(twenty-
four)twenty-fourth
第二十四
(twenty-five)twenty-
fifth
第二十五
(twenty-
six)twenty-sixth
第二十六
(twenty-seven)twenty-
seventh
第二十七
(twenty-
eight)twenty-eighth
第二十八
(twenty-nine)twenty-
ninth
第二十九
基数词变序数词口诀：
基变序有规律
，
结尾加上
th
。
一二三特殊
记，
结尾各是
t,d,d
(first
,second,third)
；
八减
t
(eight-
eighth)
,
九去
e
(nine-
ninth)
，
f
< br>来把
ve
替
(five---
fifth,twelve---twelfth)
；
y
改为
ie
，结尾仍有
th
(twenty-
twentieth)
；
若是遇到几十几，只变个位就可以
(twenty-one
----twenty-first)
。
一、写出下列词的序数词
1.
one
3. six
5. nin
e
-one
-six
-one
二、写出下列单词的基数词
eth
enth
-first
-ninth -second
三、根据句子意思填空。
1.
Children
’
s Day is on June
. 2. There are
months in a year.
3.
Teacher
’
s
Day
is
on
September
. 4.
Three
plus(
加
)
six
is
.
’
s Day is on
the Sunday
in May.
are students
in my
class.
四、选择填空。
(
)1.
My
cousin
’
s
birthday
in
on
October
.
A.
three
B.
first
C.
oneth
(
)2. What date is it today?
It
’
s
April
.
A. twelfth
B. the 12
C.
twelve
(
)3. There are
days in a
week.
A.
the seven
B. seventh
C.
seven
(
) is
the
day of a week.
A. one
B.
first
C.
second
(
)5.
Twenty-eight minus(
减
)six is
.
A. the twenty-
second
B. twenty-two
C.
twenty- second
(
)6.
Four
plus
is
twelve.
A.
seven
B.
eight
C.
nine
一．选择填空：
(
)1
、
May
is
the
month
of
the
year.
A.
five
B.
fifth
C.
six
D.
sixth
(
)2
、
There
are
so
many
new
words
in
the
lesson
.
A.
twenty-nine
B.
twenty-nineth
C.
twenty-ninth
(
)3
、
January
is
the
month
of
the
year
.
B.
oneth
C.
first
(
)4
、
The
Yellow
River
is
the
longest
river
in
China.
A.
two
B.
second
C.
twoth
(
)5
、
Today
is
her
birthday.
A.
nine
B.
nineth
C.
ninth
(
)6
、
Turn
to
page
and
look
at
the
picture.
A.
twentieth;
one
B.
twenty
;one
C.
twenty
;first
(
)7
、
There
are
months
in
a
year.
Month
is
December
.
A.
twelfth
；
Twelfth
B.
twelve
；
The
twelfth
C.
twelfth
；
The
twelfth
(
)8
、
My
cousin
’
s
birthday
on
October
.
A.
three
B.
first
C.
the
sec
ond
(
)9
、
What
date
is
it
today?
It
’
s
of
April.
A.
twelfth
B.
the
12th
C.
12th
(
)10
、
There
are
days
in
a
week.
A.
the
seven
B.
seventh
C.
the
seventh
D.
Seven
(
)11
、
Sunday
is
the
day
of
a
week.
A.
one
B.
first
C.
s