Unit
13
We’re
trying
to
save
the
earth
教材分析
本单元带领学生了解了一些有关地球污染，动物濒危等问题。并且教给大家如何保护濒危动物，如何通过回收利用等方式来保护地球。本单元分为section
A
and
section
B
两个部分。本课为第三课时带领大家了解我们能为地球做些什么。
三维目标
(一)
知识与技能
1.
To
learn
the
following
words
and
expressions.gate,
bottle,
president,
,metal等。
2.
To
understand
the
pasage
on
Page
102.
(二)
过程和方法
3.
To
get
a
general
knowledge
of
pollution
by
reading
and
role-play.
4.
To
know
about
how
to
reduce
pollution
through
discussion.
(三)
情感态度和价值观
5.
After
learning
this
part,
every
student
will
be
aware
of
the
serious
situation
of
pullution
and
determined
to
take
action
to
protect
our
earth
fron
now
on.
教学重点
1.
To
know
the
following
words:
gate,
bottle,
president,
,metal,
put
to
good
use,
set
up,
known
for,
pull
down,
not
only…but
also等
2.
to
understand
the
passage
on
Page
102.
教学难点
1.
To
know
the
following
words:
gate,
bottle,
president,
,metal,
put
to
good
use,
set
up,
known
for,
pull
down,
not
only…but
alao等
2.
to
understand
the
passage
on
Page
102.
教学策略
根据本课教学目标和重点内容，教师可采用听，读，小组讨论，角色扮演等活动来引导学生进行学习。
教学准备
ppt，
recorder，
mutiple-media
教学环节
课堂导入
Step
1
Lead-in
Discussion:
what
can
we
do
to
help
save
the
planet
Rank
these
items
from
the
easist
(1)
to
the
most
difficult
(5).
________
stop
riding
in
cars.
________
recycle
books
and
papers.
________Turn
off
the
lights
when
you
leave
a
room.
________Turn
off
the
shower
when
you
washing
your
hair.
________Don’t
use
paper
napkins.
Possible
answers:
5
3
1
2
4
课堂讲授
Step
2.
Reading
1)
Fast-reading
Now
turn
to
page
102
and
read
the
page
quickly
to
find
answers
to
the
chart.
Name
What
materials
did
they
use
What
did
they
make
Answers:
Name
What
materials
did
they
use
What
did
they
make
Amy
Hayes
Old,boat,
rocks,
old
galss
bottles,
materials
from
old
houses
A
house
Jessica
Wong
Old
clothes
bags
Wang
Tao
Iron
and
other
materials
fron
old
cars
Art
pieces
2)
careful-reading
Raed
the
passage
again
and
fill
in
blanks.
put
to
good
use,
set
up,
known
for,
pull
down,
not
only…but
alao,
build…out
of
①
Amy
Hayes
lives
in
the
Uk.
Many
of
the
old
buildings
in
her
neighborhood
were
_______________.
②
All
the
rubbish
and
old
things
in
Amy’s
neighborhood
were
then
________
when
Amy
built
her
house.
③
Amy
is
very
creative
and
she
______________
her
front
gate
________________
rocks
and
old
glass
bottles.
She
put
an
old
boat
on
top
of
her
house.
④
Jessica
Wong
sells
her
bags
in
a
small
shop,
but
she
also
____________
on
line
business
to
sell
them.
⑤
Though
Jessica’s
bags
are
made
from
old
clothes,
her
bags
are
______________
being
cute
and
useful.
⑥
Wang
Tao
____________
makes
large
pieces
of
metal
art
that
look
like
humans
or
animals,
__________
make
smaller
pieces
for
the
home.
Possible
answers:
pulled
down,
put
to
good
use,
built
out
of,
set
up,
known
for,
not
only…but
also
3)
Studying
useful
words
and
expressions.
①
put
…into
use:
应用；利用；投入使用
The
first
digital
computer
was
put
into
use
in
1944.
一九四四年,第一台二位制计算机投入了使用.
The
newly
built
waiting
building
was
put
into
use
today.
这座新建的候机楼今起启用.
②
set
up
竖立；升起;
建立；设立；创立;
创造（纪录等）
They
set
up
some
stones
as
land
marks．他们竖起一些石头当界碑。
The
school
has
set
up
a
special
class
to
help
poor
readers．
The
French
team
set
up
a
new
record
at
tonight's
meeting．
③
known
for:
以…而着名,出名,以见长
Mrs.
brown
is
known
for
her
hospitality
.
布朗夫人以其好客闻名。
London
used
to
be
a
city
known
for
its
"black
fogs.
"
伦敦的“黑雾”一向闻名。
Be
known
as:
以作为…而著称
Now
he
was
known
as
a
steady
man
.
现在他已被大家认为是一个可靠的人。
④
not
only
…but
also:
not
only…but
also…用于连接两个表示并列关系的成分，其中的also有时可以省略。
She
not
only
plays
well,
but
also
writes
music.
她不仅很会演奏，而且还会作曲。
He
works
not
only
on
weekdays
but
on
Sundays.
We
were
not
only
hungry,
but
also
tired.
我们不但饿了，而且也累了。
当not
only…but
also连接两个主语时，谓语动词的数原则上与其相近的主语保持一致。
Not
only
the
students
but
also
their
teacher
is
enjoying
the
film.
不仅学生们在欣赏这部影片，他们的老师也在欣赏这部影片。
⑤
pull
down:
拆毁,拉倒
A
small
crowd
attempted
to
pull
down
a
statue.
一小伙人试图推倒一尊塑像。
They
have
managed
to
pull
down
the
old
building.
他们已拆毁了那幢旧建筑.
Step
3
Exercises
Translate
the
following
phrases.
投入使用
拆毁
作为……而出名
因为……而出名
竖起，建起
扔掉
上下翻转
获奖
复活，恢复生机
Answers
:
put
…into
use,
pull
down,
be
known
for,
be
known
as,
set
up,
throw
away,
turn
upside
down,
win
a
prize,
bring
sth.
Back
to
life
课堂活动
Step
4
Activities
Make
a
list
of
things
to
be
done
to
save
the
environment.
Which
things
to
be
done
by
ordinary
people
every
day
Which
things
to
be
done
by
government
or
organizations
课堂小结
Step
5.
Summarize
Look
back
on
what
we
have
learned.
How
to
protect
environment.
Useful
languages
:
put
to
good
use,
set
up,
known
for,
pull
down,
not
only…but
alao
作业布置
Homework
:
make
a
survey
about
the
environment
in
your
town.
Good
environment
Why
Bad
environment
why
板书设计
教学反思
通过本课学习，学生们了解了污染以及污染带来的危害，以及保护动物的必要性,并学习了一些保护环境的措施。学完本课后，同学们要积极行动起来，为保护环境，保护动物作贡献。
Unit
13
We’re
trying
to
save
the
earth
1.
put
…into
use:
应用；利用；投入使用
2.
set
up
竖立；升起;
建立；设立；创立;
创造（纪录等）
3.
known
for:
以…而着名,出名,以见长
4.
not
only
…but
also:
①
用于连接两个表示并列关系的成分，其中的also有时可以省略。
②
当not
only…but
also连接两个主语时，谓语动词的数原则上与其相近的主语保持一致。Unit
13
We’re
trying
to
save
the
earth
教材分析
本单元带领学生了解了一些有关地球污染，动物濒危等问题。并且教给大家如何保护濒危动物，如何通过回收利用等方式来保护地球。本单元分为section
A
and
section
B
两个部分。本课为第一课时带领大家了解地球污染问题，以及探讨如何保护地球，减少污染。
三维目标
(一)
知识与技能
1.
To
learn
the
following
words
and
expressions.bottom,
coal,
public,
ugly,
cost,
advantage,
method,
cruel,
harmful,
afford.
2.
To
understand
the
pasage
on
Page
99.
(二)
过程和方法
3.
To
get
a
general
knowledge
of
pollution
by
reading
and
role-play.
4.
To
know
about
how
to
reduce
pollution
through
discussion.
(三)
情感态度和价值观
5.
After
learning
this
part,
every
student
will
be
aware
of
the
serious
situation
of
pullution
and
determined
to
take
action
to
protect
our
earth
fron
now
on.
教学重点
1.
How
to
use
the
( http: / / www.21cnjy.com )following
words
and
expressions:
cost,
advantage,
harmful,
afford,
used
to,
play
a
part
in…
2.
to
understand
the
passage
on
Page
99.
教学难点
1.
How
to
use
the
f
( http: / / www.21cnjy.com )ollowing
words
and
expressions:
cost,
advantage,
harmful,
afford,
used
to,
play
a
part
in…
2.
to
understand
the
passage
on
Page
99.
教学策略
根据本课教学目标和重点内容，教师可采用听，读，小组讨论，角色扮演等活动来引导学生进行学习。
教学准备
ppt，
recorder，
mutiple-media
教学环节
课堂导入
Step
1
Lead-in
1)
Show
some
pictures
about
pollution
and
ask
students
to
discuss
what’
s
the
danger
of
each
kind
of
pollution.
2)
Here
are
some
words
are
related
to
different
kinds
of
pollution.
Write
them
in
the
box
below,
and
you
can
add
more
words.
loud
music,
littering,
building
houses,
cars,
ships,
mobile
phones,
rubbish,
factories,
planes,
smoking.
Air
pollution
Noise
pollution
Water
Role-play
the
followi
( http: / / www.21cnjy.com )ng
conversation
and
make
your
own
conversations
about
the
kinds
of
pollution
above.
A:
The
river
( http: / / www.21cnjy.com )was
dirty.
Even
the
bottom
of
the
river
is
full
of
rubbish.
B:
But
it
used
to
be
so
clean.
A:
Yes,
but
people
are
littering
in
the
river.
B:
Everyone
in
the
town
should
play
a
part
in
cleaning
it
up.
课堂讲授
Step
2.
Reading
1)
Fast-reading
Now
turn
to
page
99
( http: / / www.21cnjy.com )
and
read
the
page
quickly
to
find
answers
to
the
sheet.
Questions
Answers
Where
shark’s
fin
soup
is
popular
Southern
China
Numbers
of
sharks
caught
and
traded
every
year
70
million
How
much
the
numb
( http: / / www.21cnjy.com )ers
of
some
kinds
of
sharks
have
fallen
in
the
last
20-30
years.
over
90
percent
Two
environment
groups
which
are
against
finning
WildAid
and
the
WWF
2)
careful-reading
Read
the
passage
again
and
fill
in
blanks.
so,
although,
if
but,
when
①
Many
people
do
( http: / / www.21cnjy.com )not
realize
they
are
killing
a
whole
shark
___________
they
enjoy
a
bowl
of
shark’s
fin
soup.
②
Sharks
are
at
the
top
of
the
food
chain,
_____________
if
their
numbers
drop,
the
ocean’s
ecosystem
will
be
in
danger.
③
Many
think
that
shar
( http: / / www.21cnjy.com )ks
are
too
strong
to
be
endangered,
___________
they
are
wrong.
④
_______________
there
are
no
scienfitic
studies
to
support
this,
a
lot
of
people
believe
that
shark’s
fins
are
good
for
health.
⑤
Sharks
may
disappear
one
day
__________
we
do
not
do
something
to
stop
the
sale
of
shark’s
fins.
Possible
answers:
when,
so,
but,
although,
if
3)
Studying
useful
words
and
expressions.
①
cost
v价钱为，花费
n.价钱，代价；花费，费用
The
cost
of
a
loaf
of
bread
has
increased
five-fold..
一条面包的价钱增长了4倍。
Badges
are
also
available
at
a
cost
of
2.50.
徽章也有卖的，2.5英镑一枚。
It's
going
to
cost
me
over
$100,000
to
buy
new
trucks.
买几辆新卡车将花掉我10万多美元。
②
harmful
adj.对…有害的；能造成损害的；不利；不良
Smoking
is
harmful
to
our
health.
吸烟对人类的健康有害。
③
used
to
do过去一向，过去时常，过去曾（而现在不再）做
Who
used
to
do
your
laundry
谁过去一直为你洗衣服？
She
used
to
wash
dishes
in
a
restaurant.她曾经在餐馆里洗过盘子。
④
afford
vt.买得起；担负得起；提供；给予
We
couldn't
afford
to
buy
a
new
car.
我们买不起新的车。
We
can't
afford
to
wait.
我们等不起。
My
parents
can't
even
afford
a
new
refrigerator.
我父母甚至买不起一台新冰箱。
⑤
play
a
part
in扮演某角色;
与…有关，对…有影响
I'd
like
to
play
a
part
in
their
discussion.
我愿意参与他们的讨论。
Education
is
playing
a
big
part
in
environmental
protection.
教育在环境保护中起着很大作用。
He
played
a
part
in
his
favorite
TV
show.
他在他最喜欢的电视节目中扮演了一个角色。
课堂练习
Step
3
Exercises
Translate
the
following
phrases:
对…有害
买得起…..
在……中起作用
过去常常
解决问题
起作用
听说
在……顶部
在……底部
切下，割下
课堂活动
Step
4
Activities\
In
your
grou
( http: / / www.21cnjy.com )p
make
a
list
of
things
people
can
do
to
help
the
environment.
课堂小结
Step
5.
Summarize
Look
back
on
what
we
have
learned.
How
to
protect
environment.
Useful
languages
:
be
harmful
to,
at
the
top
of,
at
the
bottom
of.
Solve
problems…
作业布置
Homework
:
m
( http: / / www.21cnjy.com )ake
a
conversation
with
your
parnter
about
what
you
can
do
to
reduce
pollution.
板书设计[
教学反思
通过本课学习，学生们了解了污染以及
( http: / / www.21cnjy.com )污染带来的危害，以及保护动物的必要性。学完本课后，同学们要积极行动起来，为保护环境，保护动物作贡献。
Unit
13
We’re
trying
to
save
the
earth
1.cost:
V
sth.
cost
money
2.
harmful:
be
harmful
to
3.
used
to:
used
to
do
4.
afford:
afford
sth.
/
afford
to
do
5.
play
a
part
inUnit
13
We’re
trying
to
save
the
earth
教材分析
本单元带领学生了解了一些有关地球污染，动物濒危等问题。并且教给大家如何保护濒危动物，如何通过回收利用等方式来保护地球。本单元主要复习语法内容为情态动词和动词形式变化。本课主要带领大家进行语法复习，巩固语法知识。
三维目标
(一)
知识与技能
1.
To
learn
different
forms
of
verb.
2.
To
understand
the
use
of
Modal
Verbs.
(二)
过程和方法
3.
To
know
how
to
use
different
forms
of
verb
in
different
situations.
4.
To
know
how
to
use
Modal
Verbs
in
different
situations.
(三)
情感态度和价值观
5.
After
learning
this
part,
every
student
will
be
able
to
describe
their
awareness
of
the
serious
situation
of
pullution
and
solutions
to
environmental
problems
using
what
we
have
learned
in
this
lesson.
教学重点
1.
To
change
forms
of
verb
according
to
specific
situation.
2.
To
use
Modal
Verbs
properly.
教学难点
1.
To
change
forms
of
verb
according
to
specific
situation.
2.
To
use
Modal
Verbs
properly.
教学策略
根据本课教学目标和重点内容，教师可采用读，小组讨论，口头及书面练习等活动来引导学生进行学习。
教学准备
ppt，
recorder，
mutiple-media
教学环节
课堂导入
Step
1
Lead-in
判断下列句子中使用了什么时态及情态动词。
1.
We
are
trying
to
save
the
earth.
2.
The
river
used
to
be
so
clean.
3.
It
was
considered
the
nicest
river
in
the
town.
4.
The
air
has
become
really
polluted.\
5.
We
should
help
savew
the
sharks.
Answers:
1.
现在进行时
2.
used
to
3.
一般过去时的被动语态
4.
现在完成时
5.
should
课堂讲授
Step
2.
Presentation
1)
Review
different
forms
of
verb
ask
现在时
过去时
将来时
过去将来时
一般
主动语态
ask
/
asks
asked
shall/will
ask
should/would
ask
被动语态
am/is/are
asked
was/were
asked
shall/will
be
asked
should/would
be
asked
进行
主动语态
am/is/are
asking
was/were
asking
被动语态
完成
主动语态
have/has
asked
had
asked
被动语态
have/has
been
asked
had
been
asked
2)
Review
Modal
verbs.
Main
function
of
Modal
Verbs.
①.
can
(could)
表示能力，could主要指过去时间；表示允许。
②.
may表允许，might可以指过去时间，也可指现在时间，语气更委婉。
③.
must表示义务。意为“必须”（主观意志）
④.
shall表征询意见
⑤.
will表意愿，用于各种人称陈述句；表请求，用于疑问句。
⑥.
should
/
ought
to应该
课堂练习
Step
3
Exercises
1)
Fill
in
blanks
with
the
correct
forms
of
verbs.
Interviewer:
___________
you
ever
________
(take
)
part
in
an
environmental
project
Ken:
Yes,
I
have.
I
___________
(help
)
with
a
Clean-Up
Day
last
year.
It
was
_________
(consider)
the
biggest
clean-up
project
this
city
__________
ever
___________
(have).
Interviewer:
How
many
people
__________
(take
)
part
Ken:
I
________
(
think)
more
than
1,000
people
________
(come)
to
help
out.
Interviewer:
That’s
fantastic!
I
guess
everyone
in
this
city
is
____________
(try)
to
improve
the
environment.
Ken:
Yes,
evertone
should
_____________(play
)
a
part
in
keeping
the
city
clean.
Possible
answers:
Have
taken,
helped,
considered,
had
had,
took,
think,
came,
trying.,
play
2)
Fill
in
blanks
with
proper
modal
verbs.
Can
would
could
have
to
should
might/may
must
When
it
comes
to
saving
the
earth,
people
_______
think
that
big
things
__________be
done.
However,
many
forget
that
saving
the
earth
begins
with
small
things.
For
example,
You
_________
save
electricity
by
turning
off
the
lights
when
you
leave
a
room.
You
____
also
use
paper
or
reusable
bags
instead
of
plastic
bags.
In
some
stores,
you
now
__________
pay
for
plastic
bags.
I
think
this
is
a
great
idea.
And
instead
of
driving
to
school
or
work,
you
________
ride
your
bike
or
walk.
If
it’s
far,
you
________
take
the
bus.
All
these
small
things
______
add
up
and
became
big
things
that
_____________
improve
the
environment.
We
can’t
afford
to
wait
any
longer
before
taking
action.
Possible
answers:
may,
can’t,
can,
could,
have
to,
may/might,
should
,would,
must
课堂活动
Step
4
Activities\
In
your
group
make
a
list
of
things
people
can
do
to
help
the
environment
and
present
them.
You
can
use
following
examples:
1)
We
should
use
public
transportation.
2)
we
must
save
water.
3)…
课堂小结
Step
5.
Summarize
Look
back
on
what
we
have
learned.
1）动词的各种时态语态的变形。
do
现在时
过去时
将来时
过去将来时
一般
do
/
does
did
shall/will
do
should/would
do
被动语态
am/is/are
done
was/were
done
shall/will
be
done
should/would
be
done
进行
主动语态
am/is/are
doing
was/were
doing
被动语态
完成
主动语态
have/has
done
had
done
被动语态
have/has
been
done
had
been
done
2）
①.
can
(could)
表示能力，could主要指过去时间；表示允许。
②.
may表允许，might可以指过去时间，也可指现在时间，语气更委婉。
③.
must表示义务。意为“必须”（主观意志）
④.
shall表征询意见
⑤.
will表意愿，用于各种人称陈述句；表请求，用于疑问句。
⑥.
should
/
ought
to应该
作业布置
Homework
:
Review
this
lesson
and
preview
Section
B.
板书设计
教学反思
通过本课学习，学生们进一步了解了动词各种形势变化，及情态动词用法。
Unit
13
We’re
trying
to
save
the
earth
1.被动语态的构成
2.情态动词：①.
can
(could)
②.
may
③.
must
④.
shall
⑤.
will
⑥.
should
/
ought
to
4.
