Unit
3
The
environment
and
us
Lesson
16
【学习目标】
1．To
learn
the
meaning
and
simple
usages
of
new
words
and
phrases.
2．To
understand
and
use
the
sentence
patterns.
【学习重难点】
1．To
learn
to
use
some
new
words
to
describe
air.
2．To
learn
to
introduce
air
to
others.
【学习过程】
一、新知学习
1．What
is
AIR?
We
cannot
see
it,
smell
it
or
touch
it,
but
it
is
all
__________
us.
2．单词翻译。
blow__________
balloon__________
string__________
move__________
sadly__________
kill__________
3．Finish
the
sentences
with
words
from
the
text
in
the
book.
(1)
Air
is
important.
People
and
animals
need
air
to
__________.
Plants
need
air
to
__________.
(2)
Dirty
air
is
__________
for
the
environment.
It
can
__________
people
and
animals
ill.
It
can
also
__________
plants.
.二、达标检测
Blow
up
a
balloon
and
__________
it
with
a
string.
People
and
animals
need
air
to
__________.
Plants
need
air
to
__________.
2
/
2Unit
3
The
environment
and
us
Lesson
17
【学习目标】
1．To
learn
the
meaning
and
simple
usages
of
new
words
and
phrases.
2．To
understand
and
use
the
sentence
patterns.
【学习重难点】
1．To
learn
to
use
some
new
words
to
describe
water.
2．To
learn
to
introduce
water
to
others.
【学习过程】
一、新知学习
1．There
is
salt
water
and
fresh
water
on
the
Earth.
Salt
water
is
water
from
__________
and
oceans.
Fresh
water
is
water
from
rivers
and
__________.
2．单词翻译。
salt__________
fresh__________
waste__________
sea__________
ocean__________
environment__________
3．Finish
the
sentences
to
answer
the
questions.
(1)
What
is
fresh
water?
Fresh
water
is
_________________________________________________________.
(2)
What
are
the
two
ways
people
waste
water?
a.
_____________________________________________________________.
b.
_____________________________________________________________.
(3)
How
do
people
make
water
dirty?
_______________________________________________________________.
二、达标检测
1．They
waste
water
when
they
keep
water
__________.
2．They
waste
water
when
they
water
__________.
3．They
make
water
dirty
when
they
throw
__________
into
rivers
and
lakes.
2
/
2Unit
3
The
environment
and
us
Lesson
19
【学习目标】
1．To
learn
the
meaning
and
simple
usages
of
new
words
and
phrases.
2．To
understand
and
use
the
sentence
patterns.
【学习重难点】
1．To
learn
to
use
some
new
words
to
describe
trees.
2．To
learn
to
introduce
trees
to
others.
【学习过程】
一、新知学习
1．Trees
are
important
in
many
__________.
2．单词翻译。
protect__________
land__________
environment__________
chase__________
shade__________
important__________
3．Write
T
or
F
after
each
sentence.
(1)
Some
animals
climb
up
trees
when
they
are
in
danger.
(2)
Trees
keep
the
Earth
cool
because
they
give
shade.
(3)
People
should
cut
down
trees
and
use
the
land
to
grow
crops.
二、达标检测
1．Trees
are
important
to
__________.
Monkeys
and
squirrels
spend
much
of
their
time
in
trees.
2．Trees
are
important
to
the
__________.
They
clean
the
air
and
water.
3．Sadly,
people
cut
down
many
trees
in
the
__________.
2
/
2Unit
3
The
environment
and
us
Lesson
18
【学习目标】
1．To
learn
the
meaning
and
simple
usages
of
new
words
and
phrases.
2．To
understand
and
use
the
sentence
patterns.
【学习重难点】
1．To
learn
to
use
some
new
words
to
describe
reusing
and
recycling.
2．To
learn
to
introduce
reusing
and
recycling
to
others.
【学习过程】
一、新知学习
1．We
throw
away
a
lot
of
__________
every
day
and
make
our
environment
dirty.
People
get
ill
in
a
dirty
environment.
Animals
and
plants
cannot
live
in
a
dirty
environment.
2．Finish
the
sentences
to
answer
the
questions.
(1)
Where
does
most
trash
come
from?
Most
trash
_________________________________________________________________.
(2)
What
are
the
three
ways
we
can
do
to
throw
away
fewer
things?
a.
___________________________________________________________
at
a
lower
grade.
b.
________________________________________________________
to
younger
children.
c.
________________________________________________________
to
make
new
things.
(3)
How
do
we
recycle?
_____________________________________________________________________.
(4)
What
old
things
do
you
have?
What
do
you
want
to
do
with
them?
_____________________________________________________________________.
二、达标检测
1．Most
trash
comes
from
our
__________.
2．We
can
keep
our
environment
clean
by
throwing
away
__________
things.
3．We
do
not
throw
away
our
__________
things.
2
/
2Unit
3
The
environment
and
us
Lesson
15
【学习目标】
1．To
learn
the
meaning
and
simple
usages
of
new
words
and
phrases.
2．To
understand
and
use
the
sentence
patterns.
【学习重难点】
1．To
learn
to
use
some
new
words
to
describe
our
environment.
2．To
learn
to
introduce
our
environment
to
others.
【学习过程】
一、新知学习
1．The
Earth
is
__________
we
live.
There
are
many
things
on
the
Earth.
2．单词翻译。
thing__________
environment__________
part__________
ice__________
penguin__________
camel__________
3．Finish
the
sentences
with
words
from
the
text.
(1)
Our
environment
is
all
the
things
__________
us.
(2)
Penguins
live
__________
ice.
Camels
live
__________
deserts.
(3)
People,
animals
and
plants
are
parts
__________
our
environment.
二、达标检测
1．Penguins
live
on
__________.
2．Camels
live
in
__________.
3．Some
plants
grow
in
__________
environments.
2
/
2Unit
3
The
environment
and
us
Lesson
21
【学习目标】
1．To
learn
to
describe
animals
and
plants
in
English.
2．To
revise
the
words
and
sentence
patterns
learned
in
this
unit.
【学习重难点】
1．To
learn
to
describe
animals
and
plants
in
English.
2．To
revise
the
words
and
sentence
patterns
learned
in
this
unit.
【学习过程】
一、新知学习
1．Fill
in
the
missing
letters.
__
__
__guin
__
__
__mal
__
__
__da
en__
__
__onment
__
__sert
__
__
__est
__
__ve
__
__ll
pro__
__
__
__
re__
__
__
recy__
__
__
destr__
__
2．Match
the
opposites.
dry
dirty
bad
old
high
dangerous
good
young
safe
wet
clean
low
3．Let's
sing
the
song.
Edelweiss
二、达标检测
1．Finish
the
sentences
with
the
words
from
the
word
box
in
the
Exercise
3.
For
example:
Trash
in
the
water
can
kill
fish.
2．Look
at
the
picture.
Write
two
sentences
to
tell
whether
it
helps
or
hurts
the
environment.
2
/
2Unit
3
The
environment
and
us
Lesson
20
【学习目标】
1．To
learn
the
meaning
and
simple
usages
of
new
words
and
phrases.
2．To
understand
and
use
the
sentence
patterns.
【学习重难点】
1．To
learn
to
use
some
new
words
to
describe
animals.
2．To
learn
to
introduce
animals
to
others.
【学习过程】
一、新知学习
1．People
destroy
the
environment
and
kill
animals.
Many
animals
are
in
great
__________.
2．翻译。
destroy__________
safe__________
in
danger__________
panda__________
save__________
bamboo
forest__________
3．Answer
the
questions.
(1)
Why
are
some
animals
in
danger?
_________________________________________________________________________.
(2)
Where
do
pandas
live?
What's
their
favorite
food?
_________________________________________________________________________.
二、达标检测
1．Pandas
live
in
the
bamboo
forests.
Bamboo
is
their
__________
food.
2．Elephants
are
great
animals.
Some
people
kill
them
for
their
__________.
2
/
2
