(共15张PPT)
Unit
13
We’re
trying
to
save
the
earth!
Section
A
3a
at
the
top
of
the
food
chains
食物链
ocean’s
ecosystem
生态系统
/'i?k??s?st?m/
/t?e?n/
sea
life
The
stronger
ones
live
on
the
weaker
ones.
heavy
large
cruel
scary
dangerous
horrible
fin
/f?n/
n.鳍
/kr??l/
adj
凶残的
Many
people
think
that
sharks
are
too
strong
to
be
endangered,
but
they
are
wrong.
1
Pre-reading
Save
the
sharks!
Guess
what
the
passage
will
talk
about.
Para.1
A.
Two
groups
against
“finning”.
Para.2
B.
Something
about
shark
fin
soup.
Para.3
C.
Sharks
are
endangered
now.
2
While-reading
Fast
reading
Read
the
first
and
last
sentences
in
each
paragraph
and
match
the
main
ideas(主旨大意).
Save
the
Sharks!
shark
fin
soup
be
endangered
against
“finning”
2.
What
does
it
mean
when
people
enjoy
a
bowl
of
shark
fin
soup?
Para.
1
That
means
they’re
killing
a
whole
shark
each
time
they
enjoy
a
bowl
of
shark
fin
soup.
shark
fin
soup
A
dish
which
is
famous
popular
in
southern
China
expensive
Close
reading
1.What
do
you
know
about
the
shark
fin
soup?
2
While-reading
They
cut
off
their
fins,
cut
off
throw
them
back
into
the
ocean.
2.Without
a
fin,
what
will
happen
to
a
shark?
Para.
2
1.How
do
people
deal
with
the
sharks
when
they
catch
them?
It
can
no
longer
swim
and
slowly
dies.
Close
reading
2
While-reading
The
sharks
are
endangered!
3.Why
is
it
harmful
to
(对…有害)the
environment?
the
food
chain
at
the
top
of
If
the
numbers
drop
too
low
It
will
bring
danger
to
all
ocean
life.
it
will
break
the
balance
(平衡)
of
ocean’s
ecosystem
2.
What
are
they
doing
and
what
have
they
done?
1.What
are
the
two
environmental
protection
groups?
Para.
3
?They
are
teaching
the
public
about
“finning”.
?They
have
even
asked
governments
to
develop
laws
(法律)
to
stop
the
sale
of
shark
fins.
Close
reading
2
While-reading
Listen
and
repeat.
`
cut
off,
throw
back
into
no
longer,
die,
cruel,
be
harmful
to
top,
food
chain
,
ocean’s
ecosystem
number,
drop,
bring…to,
never
endangered,
the
strongest70,
90%,
20-30
years
hear
of,
fin
soup,
famous,
expensive,
southern,
kill
teaching,
ask..to…,
develop
laws,
no
studies,
good,
save
Post-reading
What
should
we
do
to
save
the
animals
?
Write
at
least
two
suggestions
to
the
government.
These
expressions
might
help
you
:
teaching
the
public
about…
ask...to…
develop
laws
to
stop…
show
people
the
data/studies
These
sentences
might
help
you:
People
should
(not)…
We
are
(not)
supposed
to…
It
is
(not)
allowed
to…
Thank
you
for
listening!Unit
13
We
are
trying
to
save
the
earth!
Section
A
3a
课时：共1课时
主备人:Fey
授课人:
Fey
授课时间：2018
年
1
月
15
日
课
题
Unit13
第
3/4
课时Section
A
3a
教
学
重
难
点
教
学
目
标
语言知识目标：1)
学习掌握下列词汇：shark,fin,cruel,armful,chain,ecosystem,
industry,
law,
scientific
2)
能掌握以下词组：①.复习：heard
of
，cut
off
，not
only…but
also,no
longer,
at
the
top
of,bring…to,in
fact,the
number
of,such
as,be
good
of,so
far②.新授：be
harmful
to,
throw…back3）基本句型：①We’re
trying
to
save
the
earth!②No
scientific
studies
have
showed
that
shark
fins
are
good
for
health.③We
should
help
save
the
sharks.情感态度价值观目标：有环境危机意识，学会关注环境保护环境。
重点
（1）能正确运用现在进行时，现在完成时，被动语态，情态动词。（2）保护环境。
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。
关键
学生能够正确使用进行时，现在完成时，被动语态，情态动词进行表达。
程
序
与
内
容
师
生
活
动
个
性
修
改
时
间
Step
1
:
Leading
in
Step
2．Pre-reading
Step
3．While-reading
Step
4．Post-readingStep5.Emotional
attitudeBoared
design
Enjoy
a
video
and
deal
with
the
new
words:
shark,fin,cruel,armful,chain,
ecosystem,
industry,
law,
scientificGuess
what
the
passage
will
talk
about
according
the
title
and
the
picture.Read
the
first
and
last
sentences
in
each
paragraph
and
match
the
main
ideasRead
paragraph
1
and
answer
the
question
:①What
do
you
know
about
the
shark
fin
soup?
②What
does
it
mean
when
people
enjoy
a
bowl
of
shark
fin
soup?Read
paragraph2
and
answer
the
question:①How
do
people
deal
with
the
sharks
when
they
catch
them?
②Without
a
fin,
what
will
happen
to
a
shark?③Why
is
it
harmful
to
the
environment?Read
paragraph3
and
answer
the
question:①What
are
the
two
environmental
protection
groups?②What
are
they
doing
and
What
have
they
done?
Read
the
passage
about
sharks
and
complete
the
fact
sheet
below.Retell
the
passage
by
looking
at
these
pictures.Animals
are
our
friends,
so
we
should
protect
them.Protecting
the
environment
is
saving
ourselvesUnit
13
We
are
trying
to
save
the
earth!
Section
A
3a
WildAid
WWF
Cut
off
throw
back
not
only…but
also
be
harmful
to
at
the
top
of
bring
to
in
fact
the
number
of
heard
of
famous
expensive
southern
kill
enjoy
3
