Unit13 We're trying to save the earth! Section A 3a-3c (PPT共32张)

(共32张PPT)
After
watching
the
video,
can
you
say
something
about
sharks?
Do
you
think
they
are
endangered?
Why
are
they
endangered?
Section
A
3a—3c
shark
fin
cruel
harmful
be
harmful
to
at
the
top
of
chain
the
food
chain
ecosystem
industry
law
scientific
n.
鲨鱼
n.
（鱼）鳍
adj.
残酷的；残忍的
adj.
有害的
对......有害
在......顶部或顶端
n.
链子；链条
食物链
n.
生态系统
n.
工业；行业
n.
法律；法规
adj.
科学上的；科学的
Words
science
lawyer
律师
harm
n.损害；伤害
be
harmful
to
对......有害的
同义短语be
bad
for
/do
harm
to
harmful的名词形式是harm,意为“损害；伤害”
同义句转换
Smoking
is
harmful
to
your
health.
=Smoking
is
bad
for
your
health.
=
Smoking
does
harm
to
your
health.
Before
you
read
1
look
at
the
photo
and
the
title
to
the
story
on
page
99.
Then
answer
the
questions
below.
What
can
you
see
in
the
picture?
What
does
the
passage
may
talk
about?
A
shark.
It
may
talk
about
the
sharks.
No
sale,
no
kill.
没有买卖，就没有杀害。
Look
through
the
article
again
quickly
and
find
out:
Where
is
the
article
probably
from?
(
)
A.
A
book.
B.
A
magazine.
C.
A
newspaper.
C
Fast
Reading
Read
the
title,
the
first
and
last
sentences
in
each
paragraphs
and
match
the
main
ideas.
Talk
about
shark
fin
soup.
Sharks
are
endangered
now.
Appeal
(呼吁)to
people
against
eating
shark
fins.
Para.
3
Para.
1
Para.
2
While
you
read
2
Read
Paragraph
1
and
judge
the
sentences.
①Shark’s
fin（鱼鳍）soup
is
famous
and
expensive
all
around
the
world.
②You’re
killing
a
whole
shark
when
you
enjoy
a
bowl
of
shark’s
fin
soup.
F
T
Read
paragraph
2
.
What
does
the
writer
think
of
cutting
fins
of
sharks?
It’s
not
only
cruel
but
also
harmful
to
the
environment.
Careful
Reading
Read
Paragraph
2
and
fill
in
the
chart.
people
enjoy
_____________________
fishermen
___________,
___________,
then
_______________________
________________________________decreased
quickly
a
bowl
of
shark
fin
soup
catch
sharks
cut
off
their
fins
throw
them
back
into
the
ocean
The
numbers
of
some
kind
of
sharks
减少；降低
Read
paragraph
2
and
fill
in
the
chart.
Questions
Answers
Numbers
of
sharks
caught
and
traded
every
year
How
much
the
numbers
of
some
kinds
of
sharks
have
fallen
in
the
last
20-30
years.
70
million
Over
90
percent
Careful
Reading
Read
paragraph3
.
What
are
the
two
environmental
groups
against
“finning”?
WildAid
and
the
WWF.
How
do
they
help
to
save
sharks?
They
are
teaching
the
public
about
finning.
And
they
have
even
asked
governments
to
develop
laws
to
stop
the
sale
of
shark
fins.
Careful
Reading
野生救援协会和世界自然基金会
猎翅
课文重要句子讲解
key
points
1.
Many
have
heard
of
shark
fin
soup.
This
famous
and
expensive
dish
is
especially
popular
in
southern
China.
But
do
you
realize
that
you're
killing
a
whole
shark
each
time
you
enjoy
a
bowl
of
shark
fin
soup？
Many
have
heard
of
shark
fin
soup.
hear
of
sb./sth.
听说
…
同义短语：
hear
about
sb./sth.
I
have
never
heard
of/about
him
since
he
left.
hear
from
sb.
收到某人的信件（或电子邮件、电话等）
I
haven’t
heard
from
my
sister
since
last
month.
This
famous
and
expensive
dish
is
especially
popular
in
southern
China.
方位名词+-ern
构成表示方向的形容词
“…方（向）的”
eastern
western
northern
southeast
But
do
you
realize
that
you're
killing
a
whole
shark
each
time
you
enjoy
a
bowl
of
shark
fin
soup？
在中国南部
2.
When
people
catch
sharks
,they
cut
off
their
fins
and
throw
the
sharks
back
into
the
ocean
.This
is
not
only
cruel
,but
also
harmful
to
the
environment
.Without
a
fin
,a
shark
can
no
longer
swim
and
slowly
dies.
Sharks
are
at
the
top
of
the
food
chain
in
the
ocean’s
ecosystem.If
their
numbers
drop
too
low
,it
will
bring
danger
to
all
ocean
life
.Many
believe
that
sharks
can
never
be
endangered
because
they
are
the
strongest
in
their
food
chain.
But
in
fact,
around
70
million
sharks
theyare
caught
and
traded
in
this
industry
every
year.
The
numbers
of
some
kinds
of
sharks
have
fallen
by
over
90
percent
in
the
last
20
to
30
years
.
When
people
catch
sharks
,they
cut
off
their
fins
and
throw
the
sharks
back
into
the
ocean
.
This
is
not
only
cruel
,but
also
harmful
to
the
environment
.
be
cruel
to
sb./sth.
对某人某物残忍
Don’t
be
cruel
to
the
dog.
切掉
扔回
不但…而且…
no
longer
/not…any
longer
意思是“不再”
e.g.
He
no
longer
lives
here.
=
He
doesn’t
live
here
any
longer.
他不在这儿居住了。
Without
a
fin
,a
shark
can
no
longer
swim
and
slowly
dies.
不再
Sharks
are
at
the
top
of
the
food
chain
in
the
ocean’s
ecosystem.
If
their
numbers
drop
too
low
,it
will
bring
danger
to
all
ocean
life
.
在…的顶部（端）
食物链
海洋的生态系统
名词
Many
believe
that
sharks
can
never
be
endangered
because
they
are
the
strongest
in
their
food
chain.
But
in
fact,
around
70
million
sharks
are
caught
and
traded
in
this
industry
every
year
.
表推测
事实上；实际上
endangered
adj.
濒危的；濒临灭绝的
被动语态：被捕捉和交易
行业
大约
The
numbers
of
some
kinds
of
sharks
have
fallen
by
over
90
percent
in
the
last
20
to
30
years
.
the
numbers
of
…的数量,
为the
number
of
的复数形式，此处表示不同种类的鲨鱼的数量。
fall
by
下降了
…
by用作介词，表示变化的幅度。
The
price
of
the
mobile
phone
fell
by
500
yuan.
fall
to
下降到
…
在过去的20至30年里
辨析
the
number
of
…的数量，+可数名词复数
作主语时，谓语动词用单数
a
number
of
许多，大量
…
+可数名词复数
作主语时，谓语动词用复数
A
number
of
families
have
private
cars
and
the
number
of
them
has
been
growing
quickly
recently.
近年来很多家庭拥有私家车而且这个数量增长很快。
3.
Environmental
protection
groups
around
the
world,such
as
WildAid
and
the
WWF,are
teaching
the
public
about“finning”.They
have
even
asked
governments
to
develop
laws
to
stop
the
sale
of
shark
fins.So
far,no
scientific
studies
have
shown
that
shark
fins
are
good
for
health,so
why
eat
them？Help
save
the
sharks！
Environmental
protection
groups
around
the
world,
such
as
WildAid
and
the
WWF,are
teaching
the
public
about“finning”.
猎翅
They
have
even
asked
governments
to
develop
laws
to
stop
the
sale
of
shark
fins.
世界各地的环境保护组织，如野生救援协会和世界自然基金会，都在教育公众有关
“猎翅”的行为。
他们甚至已经呼吁政府立法来阻止鱼翅的销售。
So
far,
no
scientific
studies
have
shown
that
shark
fins
are
good
for
health,so
why
eat
them？Help
save
the
sharks！
?
so
far到目前为止，迄今为止，可与现在完成时连用
We
have
learned
more
than
3,000
words
so
far.
She
hasn’t
shown
up
so
far.
表明
科学研究
Read
the
passage
about
sharks
and
complete
the
sentences
below.
southern
China
70
million
develop
laws
to
stop
the
sale
of
shark
fins.
WildAid
and
the
WWF
1.
Many
people
in
________________
enjoy
shark
fin
soup,
a
famous
and
expensive
dish.
2.
Every
year
,around
_______________
sharks
are
caught
and
traded
.
3.
They
have
even
asked
governments
to
4.Environmental
protection
groups
around
the
world,
such
as
________________________,
are
teaching
the
public
about
“finning”.
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.
when
so
but
Although
if
Read
the
passage
again
and
fill
in
the
blanks
with
the
words
in
the
box.
3b
support支持
disappear
消失
3
After
you
read
Writing：环保,从我做起.
为了使我们的家乡更干净、更美丽，我们能做什么呢?
从现在做起，从身边的小事做起，把自己的想法写下来。
参考词汇:
make….
much
cleaner
and
more
beautiful,
take
the
bus
or
ride
a
bike,
instead
of
,
bring
a
bag
to
go
shopping,
never
take
wooden
chopsticks
or
plastic
bags,
throw
the
rubbish
in
the
bins,
turn
off
the
light
when
you
leave
a
room…….