(共36张PPT)
2020年秋外研（新标准）版英语
九年级上册精品课件
Module
12
Save
our
world
Unit
3
Language
in
use
完成模块任务，对本模块的词汇和语法进行综合复习和掌握；
1
3
对当今世界上现存的污染问题有较深的了解，并积极提出解决污染问题的建议。
完成Unit
3练习题，复习巩固构词法的用法;
2
学
习
目
标
课
堂
导
入
Read
the
news
words
and
expressions
in
Module
12.
Revision
1.
Reuse
means
“use
again”.
2.
Though
pollution
is
heavy
now,
I
don’t
think
it’s
hopeless.
Language
practice
合成名词
afternoon,
sportsman,
blackboard,
newspaper,
airplane,
classmate…
合成形容词
kind-hearted,
middle-aged,
hard-working…
合成副词
however,
maybe…
合成代词
himself,
everyone,
nothing…
合成动词
overlook…
1.
合成法
将两个或两个以上独立且语义不同的单词合在一起构成新词的方法称作合成法。
课
堂
学
习
2.
派生法
通过在词根前面加前缀或在词根后面加后缀构成新词的方法称作派生法。
前缀
含义
例词
dis-
不
disagree,
dislike
en-
使……处在某种状态
enable,
enrich
im-,
in-
不
impossible,
impatient,
inexpensive
inter-
在……之间
international,
interconnect
mis-
错误的
mislead,
misunderstand
non-
不，非
non-smoker,
non-native
re-
再，重复
rewrite,
retell
un-
不
unable,
unhappy,
unpopular
后缀
功能
例词
-er,
-or
构成名词
teacher,
worker,
visitor
-ian
musician
-ing
building,
painting,
shopping
-ist
artist,
scientist
-ment
agreement,
government
-ness
coldness,
happiness,
illness
-th
truth,
warmth
-tion
competition,
education,
information
-ty
activity,
safety
后缀
功能
例词
-able,
-ible
构成形容词
comfortable,
eatable,
enjoyable
-al
environmental,
international
-ful
careful,
helpful
-ive
active,
expensive
-less
careless,
helpless,
homeless
-ly
friendly,
lovely,
monthly
-ous
dangerous,
famous
-teen
构成数词
eighteen,
fifteen,
seventeen
-th
fifteenth,
fifth,
fortieth
-ty
forty,
sixty,
twenty
-ly
构成副词
badly,
carefully,
happily
词根
词缀
名词
形容词
副词
…
+
…
uninterested
uninteresting
interest
interesting
interested
interestingly
help
helpfully
helplessly
helpful
helpless
able
disable
unable
enable
ability
3.
转化法
英语构词法中把一种词性转换为另一种词性而词形不变的方法称为转化法。
动词转化为名词
talk
v.谈论
n.谈话
(2)
名词转化为动词
water
n.水；v.浇水
(3)
形容词转化为名词
light
adj.明亮的；n.光线
Make
new
words.
Join
the
parts
of
the
words
in
Box
A
with
the
words
in
Box
B.
You
need
to
use
some
of
the
parts
more
than
once.
-able
-ful
im-
-less
re-
un-
care
collect
hope
possible
use
usual
wanted
waste
A
B
careful
careless
collectable
recollect
hopeful
hopeless
impossible
reuse
usable
useful
useless
unwanted
wasteful
unusual
1
课
堂
学
习
Now
work
in
groups.
Play
the
guessing
game
English
for
Fun.
English
for
Fun
1.
full
of
care
_________
2.
can
be
collected
__________
3.
full
of
hope
_________
4.
without
any
hope
_____
5.
not
possible
_________
6.
not
usual
__________
7.
without
any
use
_____
8.
use
again
__________
9.
not
wanted
_________
10.
making
a
lot
of
waste
_______
careful
collectable
hopeful
hopeless
impossible
unusual
useless
reuse
unwanted
wasteful
Complete
the
sentences
with
the
words
in
the
box.
hopeful
impossible
reuse
unhealthy
wasteful
1.
Polluted
water
is
_________.
2.
It
is
_________
to
throw
so
much
food
away.
3.
If
you
look
after
things
well,
you
may
_______
some
of
them
later.
4.
It
is
_________
to
clean
up
the
whole
river
in
such
a
short
time.
5.
If
we
pay
attention
to
pollution
now,
the
future
will
be
_________.
unhealthy
wasteful
reuse
impossible
hopeful
2
Complete
the
table.
Noun
Verb
Adjective
Adverb
useful/
useless
hope
hopefully/
hopelessly
pollution
——
water
——
——
waste
——
———
usually/
unusually
use
use
usefully/
uselessly
hope
hopeful/hopeless
pollute
polluted/
unpolluted
water
waste
wasteful/
wasted
wastefully
usual/
unusual
3
Complete
the
sentences
with
the
correct
form
of
the
words
in
Activity
3.
She
was
_______
that
her
new
job
would
make
her
more
successful.
hopeful
1.
The
factory
________
the
river,
and
the
fish
died.
2.
We
often
walk
in
the
countryside.
It
is
a(n)
_______
activity
for
us.
3.
Do
not
use
so
much
water.
It
is
very
________.
4.
To
keep
the
flowers
growing,
you
need
to
_______
them
once
a
day.
polluted
usual
wasteful
water
4
Complete
the
sentences.
A
________
is
a
box
that
you
keep
your
lunch
in.
lunchbox
1.
A
__________
is
a
card
that
you
write
on
one
side
of
and
send
to
someone
by
post.
2.
A
__________
is
a
room
where
you
have
classes
at
school.
3.
A
__________
is
a
book
that
has
one
or
more
stories
for
children.
4.
A
__________
is
a
black
board
that
is
used
at
school
for
writing
on
with
chalk.
postcard
classroom
storybook
blackboard
5
Work
in
pairs.
Look
at
the
pictures
and
answer
the
questions.
What
kind
of
things
can
be
recycled?
2.
How
can
these
things
be
used?
3.
How
does
this
help
the
environment?
4.
Have
you
ever
recycled
or
used
things
that
can
be
recycled?
How?
possible
answers:
Cloth,
paper,
cans,
plastic,
glass,
etc.
Recycled
paper
can
be
used
for
notebooks,
tickets
or
writing
paper.
It
helps
save
a
lot
of
resources
and
reduce
greenhouse
gas
emissions.
Yes.
I
recycled
aluminum
cans
and
paper
by
selling
them
to
the
recycled
factory.
6
Mike:
I
hear
you
are
off
to
the
Caribbean
for
a
holiday!
Lucky
you!
But
aren’t
you
(1)
_____________
the
pollution
that
such
long
plane
journeys
may
cause
for
the
environment?
Ken:
I
know,
but
what
can
I
do
about
it?
I
already
try
my
best
to
protect
the
environment.
I
recycle.
I
don’t
(2)
__________
things
if
I
don’t
want
them
any
more.
I
(3)__________
the
lights
when
I
leave
a
room.
Don’t
tell
me
I
shouldn’t
travel
by
plane
any
more!
be
good
for
throw
away
turn
off
worry
about
worried
about
throw
away
turn
off
Complete
the
conversation
with
the
correct
form
of
the
expressions
in
the
box.
7
Mike:
No,
of
course
not.
But
we
can
do
more
to
protect
the
environment.
For
example,
we
can
help
keep
the
air
clean
by
planting
trees.
Trees
(4)
___________
the
environment.
In
this
way,
we
can
reduce
the
harm
of
pollution.
Ken:
Good!
So
I
can
enjoy
my
holiday,
and
when
I
come
back,
I’ll
plant
some
trees!
Mike:
That’s
the
idea!
Maybe
we
can
all
join
in
and
start
a
small
forest!
are
good
for
1.
It
is
OK
to
throw
used
things
away.
Looking
after
them
takes
a
lot
of
time.
2.
Do
not
throw
away
things
made
of
glass,
plastic
and
paper,
but
recycle
them
when
possible.
3.
Take
a
bag
when
you
go
shopping.
4.
Producing
electricity
and
using
oil
will
not
cause
pollution.
5.
Turn
off
lights
when
you
do
not
need
them.
6.
Ride
a
bike
or
walk,
and
do
not
often
drive
your
car.
Listen
and
check
(√)
the
true
sentences.
√
√
√
×
×
8
√
9
Listen
again
and
complete
the
table.
Advice
Reasons
don’t
throw
away
things
made
of
_________________,
but
_________them.
throwing
things
away
is
wasteful.
2.
_________
your
plastic
bags
when
you
can
and
__________
with
you
when
you
go
shopping.
Plastic
bags
___________
recycle.
3.
Use
less
electricity
and
oil
to
_____________.
4.
Don’t
leave
the
lights
on
and
_____________.
5.___________and
do
not
often
drive
your
car.
Producing
electricity
and
using
oil
may
cause
________.
glass,
plastic
and
paper
recycle
Reuse
take
a
bag
are
hard
to
reduce
pollution
waste
electricity
Walk
or
cycle
pollution
Around
the
world
be
held
switch
off
awareness
of
climate
change
more
and
more
take
part
in
英汉互译：
举行
关掉；关上
气候改变的意识
越来越多
参加（活动）
联想：turn
off
关上
联想：join
指加入某个组织或团体
Work
in
pairs.
Decide
what
kind
of
pollution
you
want
to
talk
about.
10
?
Choose
a
subject
that
you
care
about
the
most.
It
could
be
water
pollution,
air
pollution,
etc.
Find
out
more
information
about
your
subject.
Look
it
up
on
a
website
or
in
a
book.
Module
task:
discussing
what
you
can
do
about
pollution
Take
turns
to
say
what
you
think
about
the
problem
and
what
can
be
done.
?
Listen
to
what
others
say.
If
you
agree
with
what
they
have
said,
say
‘I
agree’,
‘That’s
true’
or
‘That’s
a
good
point’;
if
you
do
not
agree
with
that
someone
says,
say
‘I’m
sorry,
but
I
don’t
agree.
I
think
that
…’
11
Discuss
your
subject.
Present
your
group’s
ideas
to
the
whole
class.
12
1.
Though
________
(pollute)
is
heavy
now,
I
don’t
think
it’s
________
(hope).
2.
If
the
rivers
are
polluted,
________
(farm)
can’t
use
the
water
for
their
crops.
3.
If
_________
(everyone)
starts
to
do
_________
(something),
the
world
will
be
saved.
4.
We
all
need
a
_______
(health)
environment,
but
we
produce
_______
(waste)
every
day,
and
it
is
_______
(harm)
to
our
environment.
pollution
hopeless
farmers
everyone
something
healthy
waste
harmful
课
堂
达
标
I.选用适所给词的适当形式填空。
5.
Do
not
______
(waste)
things.
6.
Before
you
buy
_________
(something)
new,
think
whether
it
is
_______
(real)
necessary
because
maybe
old
one
is
just
as
good!
7.
Let’s
take
these
simple
steps
today
so
that
we
will
save
the
world
for
our
___________
(grandson)
and
______________
(granddaughter)
tomorrow.
waste
something
really
grandsons
granddaughters
1.
It’s
not
polite
to
speak
to
others
with
your
mouth
full
of
food.
It’s
_________
to
speak
to
others
with
your
mouth
full
of
food.
2.
The
teacher
asked
him
to
write
the
composition
again.
The
teacher
asked
him
to
_________
the
composition.
3.
He’s
not
popular
with
some
of
the
neighbors.
He’s
_________
with
some
of
the
neighbors.
4.
I
hate
sweet
food.
Especially,
I
don’t
like
eating
cake.
I
hate
sweet
food.
Especially,
I
_________
eating
cake.
5.
Hamburgers,
candy
and
ice
cream
aren’t
healthy
food.
Hamburgers,
candy
and
ice
cream
are
____________
food.
impolite
dislike
unhealthy
Ⅱ.完成下列同义句。
rewrite
unpopular
1.
We
should
use
china
cups
because
we
can
________
them.
A.
reduce
B.
repeat
C.
reuse
D.
replace
2.
Listening
to
light
music
is
one
of
_______
ways
to
relax
yourself
when
you
feel
tired.
A.
the
more
helpful
B.
more
helpful
C.
the
most
helpful
D.
the
helpful
III.单项填空。
C
C
3.
It
is
sunny
outside.
Why
not
_________the
light
and
open
the
window?
A.
put
off
B.
put
away
C.
turn
up
D.
switch
off
4.
I
don’t
know
if
Eric
_______
this
Sunday.
If
he
________here,
I’ll
call
you
at
once.
A.
will
come;
will
come
B.
comes;
comes
C.
comes;
will
come
D.
will
come;
comes
5.
He
tries
his
best
________
his
homework,
though
he
is
quite
poor
in
it.
A.
finishing
B.
to
finish
C.
finishes
D.
to
finishing
D
D
B
Review
the
words,
expressions
and
grammar
in
this
module.
Homework
Thank
you
!
谢谢
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Module
12
Save
our
world
Unit
3
Language
in
use
设计说明
本单元主要复习构词法。通过分析单词的结构和意义，归纳派生法、合成法，并拓展转化法。通过派生单词、选词填空、完成句子，提高学生对单词、短语、句型、语法等知识的实际运用能力。然后通过听录音、问答、讨论、展示，让学生动脑、动耳、动口、动手，巩固所学知识。
教学目标
通过本单元的教学，让学生达成以下目标:
1.
知识目标
（1）复习本模块重点的新单词、短语及句型。
（2）复习巩固构词法的用法。
2.
能力目标
能够根据已学词汇，正向/逆向猜测与之相关的合成、派生、转化词义。
3.
情感目标
对世界上现存的污染问题有较深的了解，并积极提出解决污染问题的建议。
重点难点
重点：本模块的重点单词、短语和句子
难点：根据构词法猜测词义
教学准备
PPT课件，教材活动8、9的录音
授课时数
1课时
教学过程
Step
1
Revision
Ask
the
students
to
read
the
new
words
and
expressions
in
Module
12.
Step
2
Language
practice
1.
Reuse
means
“use
again”.
2.
Though
pollution
is
heavy
now,
I
don’t
think
it’s
hopeless.
Step
3
Grammar
构词法
1.
合成法
将两个或两个以上独立且语意不同的单词合在一起构成新词的方法称作合成法。
2.
派生法
通过在词根前面加前缀或在词根后面加后缀构成新词的方法称作派生法。
3.
转化法
英语构词法中把一种词性转换为另一种词性而词形不变的方法称为转化法。
（1）动词转化为名词
talk
v.
谈论
n.
谈话
（2）名词转化为动词
water
n.
水 v.
浇水
（3）形容词转化为名词
light
adj.
明亮的 n.
光线
Step
4
Practice
1.
Make
new
words.
Join
the
parts
of
the
words
in
Box
A
with
the
words
in
Box
B.
You
need
to
use
some
of
the
parts
more
than
once.
Put
students
in
pairs
to
make
as
many
new
words
as
possible.
(
A
-able
-ful
im-
-less
re-
un-
)
(
B
care
collect
hope
possible
use
usual
wanted
waste
)
Answers：careful
careless
collectable
recollect
hopeful
hopeless
impossible
reuse
usable
useful
useless
unusual
unwanted
wasteful
Now
work
in
groups.
Play
the
guessing
game
English
for
Fun.
（1）Put
students
in
groups
of
four.
（2）Tell
students
theyare
going
to
play
a
guessing
game.
Groups
have
to
match
words
from
the
first
step
in
Activity
1
to
the
definitions.
The
first
group
to
finish
should
put
their
hands
up
or
shout“Guessed
it!”All
groups
should
then
stop
writing.
（3）Check
the
answers
as
a
class.
2.
Complete
the
sentences
with
the
words
in
the
box.
（1）Ask
students
to
read
the
sentences
and
check
the
meaning.
（2）Tell
students
to
complete
the
sentences
using
thewords
in
the
box,
and
then
compare
answers
with
theirdesk
partner.
hopeful
impossible
reuse
unhealthy
wasteful
1
Polluted
water
is
_________.
2
It
is
_________
to
throw
so
much
food
away.
3
If
you
look
after
things
well,
you
may
_________
some
of
them
later.
4
It
is
_________
to
clean
up
the
whole
river
in
such
a
short
time.
5
If
we
pay
attention
to
pollution
now,
the
future
will
be
_________.
Answers：1
unhealthy
2
wasteful
3
reuse
4
impossible
5
hopeful
3.
Complete
the
table.
（1）Put
students
in
pairs
to
complete
the
table.
（2）Check
the
answers
as
a
class.
4.
Complete
the
sentences
with
the
correct
form
of
the
words
in
Activity
3.
Ask
students
to
read
and
complete
the
sentences
with
words
from
the
table.
She
was
hopeful
that
her
new
job
would
make
her
more
successful.
1
The
factory
________
the
river,
and
the
fish
died.
2
We
often
walk
in
the
countryside.
It
is
a（n）_______
activity
for
us.
3
Do
not
use
so
much
water.
It
is
very
________.
4
To
keep
the
flowers
growing,
you
need
to
_______
them
once
a
day.
Answers：1
polluted
2
usual
3
wasteful
4
water
5.
Complete
the
sentences.
（1）Ask
students
to
read
the
example
sentence
andtell
you
which
two
words
the
answer
is
made
up
of（lunch+box）.
Point
out
that
this
is
a
very
commonmethod
of
making
words
in
English.
（2）Ask
students
to
complete
the
remaining
sentences.
A
lunchbox
is
a
box
that
you
keep
your
lunch
in.
1
A
__________
is
a
card
that
you
write
on
one
side
of
and
send
to
someone
by
post.
2
A
__________
is
a
room
where
you
have
classes
at
school.
3
A
__________
is
a
book
that
has
one
or
more
stories
for
children.
4
A
__________
is
a
black
board
that
is
used
at
school
for
writing
on
with
chalk.
Answers：1
postcard
2
classroom
3
storybook
4
blackboard
Step
5
Speaking
Work
in
pairs.
Look
at
the
pictures
and
answer
the
questions.
1
What
kind
of
things
can
be
recycled?
2
How
can
these
things
be
reused?
3
How
does
this
help
the
environment?
4
Have
you
ever
recycled
or
used
things
that
can
be
recycled?
How?
Answers（Just
for
reference）：
1
Cloth,
paper,
cans,
plastic,
glass,
etc.
2
Recycled
paper
can
be
used
for
notebooks,
tickets
or
writing
paper.
3
It
helps
save
a
lot
of
resources
and
reduce
greenhouse
gas
emissions.
4
Yes.
I
recycled
aluminum
cans
and
paper
by
selling
them
to
the
recycled
factory.
Step
6
Exercise
Complete
the
conversation
with
the
correct
form
of
the
expressions
in
the
box.
be
good
for
throw
away
turn
off
worry
about
Mike:
I
hear
you
are
off
to
the
Caribbean
for
a
holiday!
Lucky
you!
But
aren’t
you
（1）_____________
the
pollution
that
such
long
plane
journeys
may
cause
for
the
environment?
Ken:
I
know,
but
what
can
I
do
about
it?
I’ve
already
tried
my
best
to
protect
the
environment.
I
recycle.
I
don’t
（2）__________
things
if
I
don’t
want
them
any
more.
I
（3）__________
the
lights
when
I
leave
a
room.
Don’t
tell
me
I
shouldn’t
travel
by
plane
any
more!
Mike:
No,
of
course
not.
But
we
can
do
more
to
protect
the
environment.
For
example,
we
can
help
keep
the
air
clean
by
planting
trees.
Trees
（4）________
the
environment.
In
this
way,
we
can
reduce
the
harm
of
pollution.
Ken:
Good!
So
I
can
enjoy
my
holiday,
and
when
I
come
back,
I’ll
plant
some
trees!
Mike:
That’s
the
idea!
Maybe
we
can
all
join
in
and
start
a
small
forest!
Answers：（1）worried
about
（2）throw
away
（3）turn
off
（4）are
good
for
Step
7
Listening
1.
Listen
and
check（√）the
true
sentences.
（1）Tell
students
they
are
going
to
listen
to
a
passage
about
how
to
reduce,
reuse
and
recycle.
（2）Let
students
read
through
the
sentences
first.
Ask
them
to
predict
which
sentences
are
likely
to
be
true
in
the
listening
passage.
（3）Play
the
recording
for
students
and
check
the
correct
sentences.
1
It
is
OK
to
throw
used
things
away.
Looking
after
them
takes
a
lot
of
time.
2
Do
not
throw
away
things
made
of
glass,
plastic
and
paper,
but
recycle
them
when
possible.
3
Take
a
bag
when
you
go
shopping.
4
Producing
electricity
and
using
oil
will
not
cause
pollution.
5
Turn
off
lights
when
you
do
not
need
them.
6
Ride
a
bike
or
walk,
and
do
not
often
drive
your
car.
Answers：2
√
3
√
5
√
6
√
2.
Listen
again
and
complete
the
table.
（1）Ask
students
to
read
the
table
and
try
to
completeit
from
memory.
（2）Tell
students
to
compare
their
answers
with
a
partner,
and
then
play
therecording
again
for
them
to
check
their
answers.
（3）Play
the
conversation
a
final
time,
if
necessary.
AdviceReasons1
Don’t
throw
away
things
made
of
glass,
plastic
and
paper,
but
recycle
them.Throwing
things
away
is
wasteful.2
Reuse
your
plastic
bags
when
you
can
and
take
a
bag
with
you
when
you
go
shopping.Plastic
bags
are
hard
to
recycle.3
Use
less
electricity
and
oil
to
reduce
pollution.
4
Don’t
leave
the
lights
on
and
waste
electricity.
5
Walk
or
cycle
and
do
not
often
drive
your
car.Producing
electricity
and
using
oil
may
cause
pollution.
Step
8
Around
the
world
（1）Ask
students
to
look
at
the
photo
and
the
title
of
the
passage
and
guess
what
Earth
Hour
is.
（2）Tell
students
to
read
the
passage
very
quickly
to
see
if
their
ideas
are
correct.
（3）Read
the
passage
as
a
class.
(
举行
关掉；关上
气候改变的意识
越来越多
参加（活动）
)be
held
switch
off
awareness
of
climate
change
more
and
more
take
part
in
Step
9
Module
task:
discussing
what
you
can
do
about
pollution
1.
Work
in
pairs.
Decide
what
kind
of
pollution
you
want
to
talk
about.
Choose
a
subject
that
you
care
about
the
most.
It
could
be
water
pollution,
air
pollution,
etc.
Find
out
more
information
about
your
subject.
Look
it
up
on
a
website
or
in
a
book.
（1）Put
students
in
small
groups
and
ask
them
to
list
different
kinds
of
pollution.
（2）Ask
students
to
decide
upon
the
kind
of
pollution
their
group
would
like
to
talk
about.
（3）Give
students
time
to
research
the
topic.
2.
Discuss
your
subject.
（1）Tell
each
group
to
nominate
a
secretary
who
willlisten
to
their
discussion
and
take
notes.
（2）Tell
students
to
follow
the
instructions
anddiscuss
their
topic.
（3）When
the
discussion
is
finished,
the
groupsecretary
reads
the
notes
to
the
group,
who
decide
ifit
is
a
reliable
summary.
（4）The
group
then
uses
the
secretary’s
notes
toprepare
a
short
presentation
on
the
type
of
pollutionthey
have
chosen.
3.
Present
some
groups’
ideas
to
the
whole
class.
Step
10
Homework
Review
the
words,
expressions
and
grammar
in
this
module.
当堂达标
Ⅰ.
用所给单词的适当形式填空。
1.
Though
________（pollute）is
heavy
now,
I
don’t
think
it’s
________（hope）.
2.
If
the
rivers
are
polluted,
________
（farm）can’t
use
the
water
for
their
crops.
3.
If
_________（everyone）starts
to
do
_________（something）,
the
world
will
be
saved.
4.
We
all
need
a
_______（health）environment,
but
we
produce
_______
（waste）every
day,
and
it
is
_______（harm）to
our
environment.
5.
Do
not
_______（waste）things.
6.
Before
you
buy
_________（something）new,
think
whether
it
is
_______
（real）necessary
because
maybe
the
old
one
is
just
as
good!
7.
Let’s
take
these
simple
steps
today
so
that
we
will
save
the
world
for
our
__________（grandson）and
________（granddaughter）tomorrow.
Ⅱ.
完成下列同义句。
1.
It’s
not
polite
to
speak
to
others
with
your
mouth
full
of
food.
It’s
_________
to
speak
to
others
with
your
mouth
full
of
food.
2.
The
teacher
asked
him
to
write
the
composition
again.
The
teacher
asked
him
to
_________
the
composition.
3.
He’s
not
popular
with
some
of
the
neighbors.
He’s
_________
with
some
of
the
neighbors.
4.
I
hate
sweet
food.
Especially,
I
don’t
like
eating
cake.
I
hate
sweet
food.
Especially,
I
_________
eating
cake.
5.
Hamburgers,
candy
and
ice
cream
aren’t
healthy
food.
Hamburgers,
candy
and
ice
cream
are
__________
food.
Ⅲ.
单项填空。
1.
We
should
use
china
cups
because
we
can
________
them.
A.
reduce
B.
repeat
C.
reuse
D.
replace
2.
Listening
to
light
music
is
one
of
_________
ways
to
relax
yourself
when
you
feel
tired.
A.
the
more
helpful
B.
more
helpful
C.
the
most
helpful
D.
the
helpful
3.
It
is
sunny
outside.
Why
not
_________the
light
and
open
the
window?
A.
put
off
B.
put
away
C.
turn
up
D.
switch
off
4.
I
don’t
know
if
Eric
_________
this
Sunday.
If
he
_________here,
I’ll
call
you
at
once.
A.
will
come;
will
come
B.
comes;
comes
C.
comes;
will
come
D.
will
come;
comes
5.
He
tries
his
best
________
his
homework,
though
he
is
quite
poor
in
it.
A.
finishing
B.
to
finish
C.
finishes
D.
to
finishing
答案：
Ⅰ.
1.
pollution
hopeless
2.
farmers
3.
everyonesomething
4.
healthywasteharmful
5.
waste
6.
somethingreally
7.
grandsonsgranddaughters
Ⅱ.
1.
impolite
2.
rewrite
3.
unpopular4.
dislike5.
unhealthy
Ⅲ.
1.
C
2.
C
3.
D
4.
D
5.
B
板书设计
Module
12
Save
our
world
Unit
3
Language
in
use1.
合成法
单词+单词→新词（名词、形容词、副词、代词、动词）
2.
派生法
前缀dis-，en-，im-，in-，inter-，mis-，non-，re-，un-
后缀（构成名词-er...；形容词-able；副词-ly；数词-teen）
3.
转化法
动词转化为名词
名词转化为动词
形容词转化为名词
教学反思
教学反思
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