-
一、教学目标：
1.
语言知识目标
基本词汇：
litter, advantage,
bottom, fisherman, coal, ugly, cost, wooden,
plastic, takeaway, bin,
shark,
fin,
method,
cruel.
Harmful,
chain,
ecosystem,
industry,
law,
scientific,
afford,
reusable,
transportation,
recycle,
napkin,
upside,
gate,
bottle,
president,
inspiration,
iron,
work,
metal,
creativity,
基本词组：
be harmful to, at the
top(of sth.), take part in, turn off, take action,
throw away, put
sth. to good use,
pull
…
down, bring
back
基本句型：
We
’
re trying to save the earth!
The river used to be so
clean.
The
air is badly polluted.
No scientific studies have showed that
shark fins are good for health.
We should help save the
sharks.
2.
技能目标
:
能正确运用现在进行时，
现在完成时，被动语态，情态动词和
used to
句型。
3.
情感目标
:
有环境危机意识，学会关注环境保护环境。
二、教学重难点：
1.
教学重点：
（
< br>1
）能正确运用现在进行时，现在完成时，被动语态，情态动词和
used to
句
型。
（
2
）保护环境的措施方法。
2.
教学难点：能正确运用现在进行时，现在完
成时，被动语态，情态动词和
used to
句型。
三、教学步骤
:
in
(1)
Teacher
shows
a
video
about
beautiful
ocean
then
tells
students
the
earth
is
badly
pollute
d. What should we do
to save the earth? Let’s take action. For
example:
①
Turn off the lights when
you leave a room;
②
Take buses instead of
driving cars
③
Recycle books
and paper.
(2) There are some animals
are endangered. We should do something to protect
the animals and
the environment!
Introduce the shark present situation
students watch the video
about
“Finning”
and
Discussion
(1) Have you ever seen a shark?
(2) What do you know about sharks?
someting about sharks
and complete the sentences.
1) Fin soup is especially _______ in
southern China.
2) If their numbers
drop too low,it will bring _____ to all ocean
life.
3) Many
believe that
sharks are the _______ in the their
food
chain
.
4)
In fact, _______70 million sharks are caught and
traded in this industry every year.
5).They
have
even asked governments to
develop laws to stop the sale of
_________
4. Reading
(1)Sharks are
endangered, read the passage and judge the
sentences.
①
Shark
’
s fin
（鱼鳍）
soup is
famous and expensive all around the world.
②
We have to kill a whole
shark to get a bowl of
shark
’
s fin soup.
③
People cut off
sharks
’
fins and
throw the sharks back into the ocean.
④
Sharks are in the bottom of
the food chain in the
ocean
’
s ecosystem.
⑤
WildAid and the WWF are
environmental protection groups in China.
< br>⑥
Shark
’
s fin s
are good for health.
(2)Complete the
fact sheet in 3a.
Where
shark fin soup is popular
Number of sharks caught
and
traded every year
How much
the numbers of
some kinds
of sharks have
fallen in
the last 20 to 30
years
Two environmental groups
which are against “finning”
5. Practice (3b)
(1) Read the passage and
dill in the blanks with the words in the box.
1. Many people do not realize they are
killing a whole shark ______ they
enjoy a bowl of
shark 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 sharks are too
strong to be endangered, _____ they are wrong.
4. _________ there are no scientific
studies to support this, a lot of people believe
that shark fins
are good for health.
5. Sharks may disappear one day ___ we
do not do something to stop the sale of shark
fins.
(2) Retell the
passage according to the words below.
shark’s fin soup,
in southern
China
each time
cut off
no longer
not
only…but also…
at
the
top
drop
be
endangered
the
strongest
around
70
million
fallen
by
over
90
percent
WildAid
and
the
WWF
develop
laws
scientific
studies
6. Language points
1. A
shark can no longer swim and slowly dies.
鲨鱼不能再游泳然后慢慢死掉。
no
longer
意思是“不再”
e.g. I
’
m no
longer a student.
我不再是个学生了。
有两个短语和
no longer<
/p>
同义，
即
not
…
any longer
和
not
…
any
more
，
但他们侧重的方面不同。
no longer
和
not
…
any
longer
侧重时间。
e.g. He no longer lives here.= He
doesn’t live here any longer.
他不在这儿居住了。
(
一个时间以前他住在这儿，过了这个时间，他就离开
了。
)
not
…
any
more
侧重侧重程度和数量
e.g. You can drink no more. = You can’t
drink any more.
你不能再喝了。
(
喝酒的量到了一定程度，
不能再继续下去了。
)
2.
This method is not only cruel, but also harmful to
the environment.
这种方法不但残忍而且对环境有害。
not only…but also…
用于连接两个表示并列关系的成分，着重强调后者，其意为“不仅……而且……”
;
其中的