Section
A
(3a-3c)
I.
Revision
Role-play
2d.
Translate
these
sentences
into
English.
①甚至是河底都满是垃圾。
②这个小镇上的每个人都应该参加打扫。
③骑自行车有其它的优点。
④我买外卖食品从来不拿木筷子和塑料叉子。
II.
Lead
in
(1)
Teacher
tells
students
the
earth
is
badly
polluted.
What
should
we
do
to
save
the
earth?
Let’s
take
action.
For
example:
①Turn
off
the
lights
when
you
leave
a
room;
②Take
buses
instead
of
driving
cars
③Recycle
books
and
paper.
(2)
There
are
some
animals
are
endangered.
We
should
do
something
to
protect
the
animals
and
the
environment!
III.
Discussion
(1)
Have
you
ever
seen
a
shark?
(2)
What
do
you
know
about
sharks?
IV.
Reading
Sharks
are
endangered,
read
the
passage
and
judge
the
sentences.
①Shark’s
fin（鱼鳍）soup
is
famous
and
expensive
all
around
the
world.
②We
have
to
kill
a
whole
shark
to
get
a
bowl
of
shark’s
fin
soup.
③People
cut
off
sharks’
fins
and
throw
the
sharks
back
into
the
ocean.
④Sharks
are
in
the
bottom
of
the
food
chain
in
the
ocean’s
ecosystem.
⑤WildAid
and
the
WWF
are
environmental
protection
groups
in
China.
⑥Shark’s
fin
s
are
good
for
plete
the
fact
sheet
in
3a.
Where
shark
fin
soup
is
popular
?
Number
of
sharks
caughtand
traded
every
year
How
much
the
numbers
of
some
kinds
of
sharks
have
fallen
in
the
last
20
to
30years
Two
environmental
groups
which
are
against
“finning”
V.
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
VI.
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also有时可以省略。
e.g.
1)
She
not
only
plays
well,
but
also
writes
music.
她不仅很会演奏，而且还会作曲。
2)
Not
only
men
but
also
women
were
chosen.
不仅仅是男的，女的也有被选中的。
若连接两个成分作主语，其谓语通常与靠近的主语保持一致。
e.g.
Not
only
you
but
also
he
has
to
leave.
不只是你，他也得离开。
not
only放在句首，后接句子时要用倒装结构。
e.g.
Not
only
had
the
poor
man
been
fined,
but
also
he
had
been
sent
to
prison.
这个可怜的人不仅被罚款，而且还被送进了监狱。
be
harmful
to
对…
有害
e.g.
Smoking
is
harmful
to
the
health.
吸烟有损健康。
Playing
computer
games
much
is
harmful
to
students.
电脑游戏玩太多对学生有害。
3.
Sharks
are
at
the
top
of
the
food
chain
in
the
ocean’s
ecosystem.
鲨鱼位于海洋生物系统食物链的顶部。
at
the
top
of
在...最高地位;
用最高[最大]的(速度,
声音等)
e.g.
I
looked
at
the
top
of
his
head,
his
hair
shiny
and
parted
smoothly.
我看他的头顶,
头发光亮,
分得平滑。
He
shouted
at
the
top
of
his
voice
in
order
that
he
might
be
heard.
他尽力大声叫喊,
以便别人能听见。
4.
If
their
numbers
drop
too
low,
it
will
bring
danger
to
all
ocean
life.
如果它们的数目降至过低，会给所有海洋生物带来危险。
此句复数形式的number表达全海洋中鲨鱼的总量。当表示数值的高或低时，number要用high或low修饰。
e.g.
In
that
country,
the
number
of
children
going
to
school
is
higher
in
cities
than
in
towns
and
village.
在那个国家，城市儿童入学人数比乡镇及农村要高。
常与number搭配的动词有grow,
fall等。
e.g.
The
number
of
families
that
own
cars
has
been
growing
quickly
recently.
近来拥有轿车的家庭数量增长很快。
5.
Environment
protection
groups
around
the
world,
such
as
WildAid
and
the
WWF,
are
teaching
the
public
about
“finning”.
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。
1)
句中fin本为名词，指
“鱼鳍”。此句中的finning由动词化的fin（割鲨鱼鳍以获取鱼翅）的-ing形式转化而成，指课文中所陈述的
“猎翅”这一行为。
2)
WildAid和WWF组织
WildAid（美国野生救援协会）是保护野生动物及栖息地环境的一个非盈利性的机构，1999年注册成立，其宗旨是保护及救助世界范围内的野生动物；WWF（世界自然基金会）英文全称为World
Wide
Fund
for
Nature，成立于1961年，是享有国际盛誉，全球最大的独立性非政府环境保护组织之一。
VII.
Homework
Write
5
measures
to
protect
the
environment.(共35张PPT)
Section
A
3a-3c
c
Unit
13
We're
trying
to
save
the
earth.
Do
you
enjoy
ocean？
The
ocean
is
beautiful
because
of
the
diversity
(多样性)
of
life.
What
is
the
king
of
the
sea?
Dangerous
No
predators
（天敌）
In
fact,
now
the
number
of
sharks
is
less
and
less.
Who
is
killing
them?
Do
you
think
sharks
should
be
extinct?
(灭绝)
What
if
there
were
no
sharks？
We
should
save
sharks
Fast
reading
Find
out
the
main
ideas
in
each
paragraph.
Something
about
shark
fin
soup.
Sharks
are
endangered.
Help
save
the
sharks.
Scanning
Read
the
passage
about
sharks
and
complete
the
fact
sheet
below.
Where
shark
fin
soup
is
popular:
__________________________
Number
of
sharks
caught
and
traded
every
year:
_____________________
How
goverments
can
help:
__________________________
Two
environmental
groups
against
“finning”:
____________________
In
southern
China
Around
70
million
To
develop
laws
to
stop
the
sale
of
shark
fins
WildAid
and
WWF
Careful
reading
Para
1
01
What
is
shark's
fin
soup?
02
What
is
shark's
fin
soup
made
of?
It
is
made
of
shark
fins.
03
What
do
you
know
about
this
dish?
famous
expensive
popular
04
From
Para
1,
what
does
it
mean
to
enjoy
a
bowl
of
shark's
fin
soup?
It
means
that
you're
killing
a
whole
shark.
Why?
Careful
reading
Para
2
How
do
people
get
shark
fins?
What
will
happen
if
sharks
don't
have
their
fins?
When
people
catch
sharks
,they
cut
off
their
fins
and
throw
the
sharks
back
into
the
ocean.
They
can
no
longer
swim
and
slowly
dies.
This
is
not
only
cruel,but
also
harmful
to
the
environment.
Why
does
it
do
harm
to
the
environment？
Why
does
it
do
harm
to
the
environment.
Sharks
are
_____________the
food
chain
in
the
ocean's
ecosystem.
If
their
_________
drop
too
low,
it
will
_________________all
ocean
life.
at
the
top
of
numbers
bring
danger
to
According
to
the
Para
2,
do
you
think
sharks
are
endangered?
The
numbers
of
some
kinds
of
sharks
have
fallen
by
over
90
percent
in
the
last
20
to
30
years.
Around
70
million
sharks
are
caught
and
traded
in
this
industry
every
year.
Why
do
people
eat
shark
fin's
soup?
1
2
It
is
expensive,
it
is
like
a
symbol
of
status(地位)
.
People
think
it
is
good
for
their
health.
Careful
reading
Para
3
Is
shark
fin's
soup
really
good
for
your
health?
It
even
harms
to
people's
health.
Do
you
know
ocean
pollution?
Millions
of
tons
of
waste
enter
the
oceans
every
year,polluting
the
seas，messing
the
beaches
and
endangering
wildlife.Some
litter
is
eaten
by
fishes
and
other
sea
animals,
and
then
they
enter
the
food
chain.
what
does
the
passage
want
to
tell
us?
at
the
top
of
the
food
chain
catch
....cut
off...
eat
no
longer
swim
slowly
dies
around
70
million...
are
caught
and
traded
bring
danger
to....
kinds
of
sharks
have
fallen....over
90%
1.
Learn
as
much
as
you
can
about
sharks.
2.
Don't
use
shark
products.
3.
Reduce
your
seafood
consumption.
4.
Reduce,Reuse,Recycle.
5.
Donate
and
volunteer
with
shark
conversation
organization.
6.
Call
on
the
people
around
you
to
protect
the
sharks.
3b
Read
the
passage
again
and
fill
in
the
blanks
with
the
words
in
the
box.
so
although
if
but
when
When
so
but
Although
if
Language
Points
Key
words
1.
heard
of
/
about
听说
2.
a
bowl
of
一碗
3.
cut
off
切除
4.
throw
back
扔回
5.
not
only
...
but
also...
不但...而且...
6.
be
harmful
to
对...有害
7.
no
longer
不再
8.
at
the
top
of
在...顶部...
Key
words
9.
the
food
chain
食物链
10.
ocean
ecosystem
海洋系统
11.
bring
danger
to
sb.
给某人带来危险
12.
in
fact
事实上
13.
the
numbers
of
...的数量
14.
fall
by
下降了
15.
Environmantal
protection
环境保护组织
group
Key
words
16.
develop
laws
立法
17.
the
sale
of
...的售卖
18.
so
far
到目前为止
19.scientific
studies
科学研究
But
do
you
realize
that
you're
killing
a
whole
shark
each
time
you
enjoy
a
bowl
of
shark
fin
soup.
each
time
每一次的...时候，引导时间状语从句
拓展：
类似的可以引导时间状语从句还有
every
time,
the
last/first
time等。
This
is
not
only
cruel,
but
also
harmful
to
the
environment.
be
harmful
to
对...有害
拓展：harmful的名词形式为harm。
同义：
do
harm
to....
be
bad
for...
Many
believe
that
sharks
can
never
be
endangered
because
they
are
the
strongest
in
their
food
chain.
endangered:
adj.
濒临灭绝的
dangerous
：
adj.
危险的
danger：
n.
危险，威胁
Two
environmental
groups
against
“
finning”.
against:
1.
against
war
2.
against
the
wind
3.
against
the
wall
4.
against
the
tree.
反对
逆着
撞到
倚着
Thank
you!
