(共24张PPT)
PEP·四年级下册
Lead-in
What’s
this?
It’s
a
tomato.
tomatoes
西红柿
I
like
to
eat
tomatoes.
New
words
green
bean
green
beans
These
are
green
beans.
豆角；四季豆
carrot
carrots
胡萝卜
The
rabbit
likes
to
eat
carrots.
potato
potatoes
土豆
Do
you
like
potatoes?
Who
is
faster
tomato
carrot
potato
potatoes
tomatoes
carrots
tomatoes
西红柿
tomatoes是tomato的复数形式。
规则的名词复数的变化规律：
1.
一般情况下，直接在名词后面加-s。
dog
→
window
→
dogs
windows
2.
以s,
x,
sh,
ch等结尾的名词，要在词尾加-es。
bus→
box→
3.
以“辅音字母+y”结尾的名词，要把y
变成
i，
再加-es。
library→
strawberry→
buses
boxes
libraries
strawberries
4.
以o结尾的名词大多数直接加-s。
5.
以f或fe结尾的名词，变f或fe为v，再加-es。
zoo→
knife→
leaf→
zoos
（tomato,
potato
除外）
knives
leaves
small
big
This
tomato
is
small.
This
potato
is
big.
比一比
long
These
green
beans
are
long.
short
These
carrots
are
short.
Let’s
learn
Look
at
the
green
beans.
They’re
so
long!
Yes,
and
the
potatoes
are
big.
Answer
the
questions
1.
What
are
they
talking
about?
_____________________________
2.
How
many
kinds
of
vegetables
are
there
in
the
picture?
_____________________________
3.
The
green
beans
are
______
and
the
potatoes
are
____.
They
are
talking
about
vegetables.
There
are
four
kinds
of
vegetables.
so
long
big
I
can
say
Look
at
_____.
They’re
____.
Let’s
chant
Do
you
like
_____?
We
should
have
good
eating
habits.
Exercise
(
)
1.
green
beans
(
)
2.
potatoes
(
)
3.
tomatoes
(
)
4.
carrots
一、选择对应的图片。
A.
B.
C.
D.
D
A
B
C
二、根据要求完成各题。
1.
单数形式：tomatoes
___________
carrots
___________
green
beans
___________
2.
复数形式：potato
___________
onion
___________
tomato
carrot
green
bean
potatoes
onions
Unit
4
At
the
farm
Summary
蔬菜类
西红柿
马铃薯；土豆
胡萝卜
豆角；四季豆
tomato
potato
carrot
green
beans
Thanks!
