人教版三年级英语专题课二第1课时Lesson1 Let’s know about water课件（44张，内嵌视频，WPS打开）

(共44张PPT)
专题课二（第一课时）
学习目标
Lesson
1
Let’s
know
about
water.
1.
能够了解自然界中水的三种存在状态及特点。
2.
知道温度是使水的状态发生变化的原因。
Let’s
sing.
01
do
sports
potatoes
tomatoes
carrots
fruit
eggs
meat
We
should
eat
...
We
should
drink…
milk
water
Water
is
important
to
our
bodies.
Water
is
important
in
our
life.
rain
snow
ice
Let’s
learn.
02

Ice
Ice
is
hard
and
cold.
Ice
is
a
solid(固体).
A
solid
has
its
own
shape(形状).

What
happens
when
you
put
ice
in
the
sun
The
heat(热量)
can
change
ice
to
water.

Water
Water
is
a
liquid(液体).
A
liquid
is
runny(易流动的).
It
can
flow(流动).

What
happens
when
you
heat
water
The
heat(热量)
can
change
water
to
steam.

Steam
Steam
is
a
gas(气体).
It’s
hard
to
see.
A
gas
goes
into
the
air.

ice
heat
water
heat
steam
water
Heat
can
make
things
change.
Ice
Ice
Ice
is
a
solid.
Ice
is
hard.
Ice
stone
（石头）
iron
block
（铁块）
Ice
Ice
is
cold.
Water
Water
Water
is
a
liquid.
Water
Water
has
no
colour,
smell
or
taste.
Water
Water
is
runny.
It
can
flow.
Water
Steam
Steam
is
a
gas.
Steam
A
gas
goes
into
the
air.
It’s
hard
to
see.
ice
water
steam
heat
Ice,
ice,
ice
is
a
solid.
Water,
water,
water
is
a
liquid.
Steam,
steam,
steam
is
a
gas.
Heat
can
make
things
change.

Ice
Ice
is
hard
and
cold.
Ice
is
a
solid(固体).
A
solid
has
its
own
shape(形状).

What
happens
when
you
put
ice
in
the
sun
The
heat(热量)
can
change
ice
to
water.

Water
Water
is
a
liquid(液体).
A
liquid
is
runny(易流动的).
It
can
flow(流动).

What
happens
when
you
heat
water
The
heat(热量)
can
change
water
to
steam.

Steam
Steam
is
a
gas(气体).
It’s
hard
to
see.
A
gas
goes
into
the
air.

ice
heat
water
heat
steam
water
Heat
can
make
things
change.
water
ice
steam
Let’s
practise.
03
Let’s
make
a
spin
wheel!
a
glue
stick
scissors
a
pin
an
eraser
Summary
ice
water
steam
heat
Ice
is
a
solid.
Water
is
a
liquid.
Steam
is
a
gas.
Heat
can
make
things
change.
我知道温度是使水的状态发生变化的原因。
我了解自然界中水的三种存在状态及特点。
Self-assessment
（自我评价）
1.读一读，唱一唱。
2.做一做，说一说。
课后练习
谢
谢！