(共23张PPT)
Unit
2
School
in
Canada
Lesson
10
How
Many
Are
There?
Lead
in
Presentation
one
potato
two
potatoes
three
potatoes
four
potatoes
Can
you
find
the
differences?
①Pencils
and
chairs
Can
you
find
the
differences?
These
words
have
no
s.
This
is
one
pencil.
This
is
a
chair.
①Pencils
and
chairs
These
words
have
an
s.
These
are
many
pencils.
These
are
many
chairs.
pencil
pencils
chair
chairs
Let's
read
apple
This
is
an
apple.
apples
These
are
many
apples.
Let's
read
可数名词变复数：
pencil
—
pencils
chair
—
chairs
apple
—
apples
规则1：
一般情况下，直接在名词后加-s。
Can
you
find
the
rules(规则)?
Let's
learn
This
is
...
a/an/
one
pencil
chair
snake
book
two/
some/
many
pencils
chairs
snakes
books
These
are
...
Look
and
say
②Boxes
and
buses
These
words
have
no
es.
This
is
a
box.
This
is
a
bus.
②Boxes
and
buses
These
are
many
boxes.
These
are
three
buses.
These
words
have
an
es.
box
boxes
bus
buses
Let's
read
This
is
a
______.
bus
box
peach
dish
These
are
______.
buses
boxes
peaches
dishes
规则2：以s/x/ch/sh结尾的词+es,
构成名词复数。
Look
and
find
This
is
a
tomato.
These
are
many
tomatoes.
This
is
a
potato.
These
are
many
potatoes.
Look
and
say
③Tomatoes,
potatoes
and
photos
This
is
a
tomato.
This
is
a
potato.
This
is
a
photo.
③Tomatoes,
potatoes
and
photos
These
are
many
tomatoes.
These
are
many
potatoes.
These
are
many
photos.
Do
you
see
an
s
or
an
es
in
these
words?
Yes!
可数名词变复数
tomato
—
tomatoes
potato
—
potatoes
规则3：以辅音字母加o结尾的单词，一般在词尾加-es。
photo是一个例外，其复数形式是photos。
以元音字母加o结尾的单词，一般在词尾加-s。
Can
you
find
the
rules(规则)?
Let's
learn
④Men,
women
and
children
This
man
is
old.
This
woman
is
dancing.
This
child
is
walking.
④Men,
women
and
children
These
men
are
young.
These
women
are
singing.
These
children
are
playing.
Do
you
see
an
s
or
an
es
in
these
words?
No!
可数名词变复数不规则变化:
man
—
men,
woman
—
women,
child
—
children,
foot
—
feet,
tooth
—
teeth
Let's
learn
Homework
1.Listen
and
read.
2.Finish
the
relevant
workbook
exercises.
