(共35张PPT)
Unit
4
Our
World
Topic
1
What's
the
strongest
animal
on
the
farm
仁爱科普版
八年级上
Section
A
Warming-up
Let's
enjoy
a
video.
Where
do
you
like
to
live,in
the
city
or
in
the
countryside
Brainstorm
The
river
is
clear.
The
sky
is
blue.
The
air
is
fresh.
The
trees
are
green.
It’s
quiet
in
the
countryside.
We
can
enjoy
the
beauty
of
nature
in
the
countryside.
清澈的
江，河
天空
新鲜的
beauty
n.
美丽
吵闹的
The
air
is
not
fresh.
The
building
is
tall.
It’s
noisy
in
the
city.
The
sky
is
not
blue.
The
river
is
dirty(not
clear).
The
traffic
is
busy.
The
road
is
wide.
Presentation
The
river
is
clearer
in
the
countryside
(than
that
in
the
city).
clear比较级--clearer
than
“比”
（用于比较级）
The
river
is
clear.
The
river
is
not
clear.
The
air
is
fresher
in
the
countryside
(than
that
in
the
city).
fresh比较级--fresher
The
air
is
fresh.
The
air
is
not
fresh.
It's
is
quieter
in
the
countryside
(than
that
in
the
city).
It's
is
noisier
in
the
city(than
that
in
the
countryside).
quiet比较级--quieter
noisy比较级--noisier
It’s
noisy
in
the
city.
It’s
quiet
in
the
countryside.
The
sky
is
bluer
in
the
countryside
(than
that
in
the
city).
blue比较级--bluer
The
sky
is
not
blue.
The
sky
is
blue.
The
road
is
wider
in
the
city
(than
that
in
the
city).
wide比较级--wider
The
road
is
wide.
The
road
is
not
wide.
形容词和副词有三个比较等级，即：
1.
原级，也就是原形。
2.
比较级，表示“较……”或“更……”的意思。（用于两者之间比较）
3.
最高级，表示“最……”的意思。
（用于三者或三者以上的比较）
fresh
clear
blue
noisier
fresher
clearer
bluer
quieter
noisy
quiet
形容词原级
形容词比较级
wide
wider
比较级有什么特点？
单音节和部分双音节词
一般在词尾加-er
tall→taller
long→longer
以字母e结尾的词，在词尾加-r
fine→finer
late→later
重读闭音节词且词尾只有一个辅音字母，双写辅音字母再加-er
big→bigger
thin→thinner
以“辅音字母 + y”结尾的双音节词，先把“y”改为“i”再加-er
easy→easier
busy→busier
形容词副词比较级的构成——规则变化：
1.big
2.hot
3.brave
4.strong
5.busy
6.new
7.lazy
8.nice
9.ugly
10.heavy
11.fat
12.thin
bigger
braver
busier
lazier
uglier
fatter
hotter
stronger
newer
nicer
heavier
thinner
试着写出下列形容词的比较级。
Listen
to
1a
and
check
the
words
you
hear.
1b
_____
fresher
_____
busier
_____
bluer
_____
taller
_____
bigger
_____
clearer
_____
nicer
_____
quieter
_____
noisier
Listening
task
Listen
again
and
answer.
1.
What
is
Wang
Wei
thinking
about
2.
Does
Wang
Wei
like
the
countryside
or
the
city
He
is
thinking
about
life
in
the
countryside.
The
countryside
Watch
the
flash
of
1a,
and
answer
the
following
questions.
1a
1.What
does
Wang
Wei
think
of
the
countryside
2.How
does
Michael
like
the
countryside
3.Who’s
grandma
lives
in
the
countryside
1.What
does
Wang
Wei
think
of
the
countryside
2.How
does
Michael
like
the
countryside
3.Who’s
grandma
lives
in
the
countryside
He
thinks
the
air
is
fresher
,the
sky
is
bluer
and
the
rivers
are
clearer
there.
He
thinks
the
countryside
is
much
quieter
than
the
city,
and
people
can
enjoy
the
beauty
of
nature
there.
Wang
Wei’s
grandma.
Listen
and
repeat.
Reading
task
Michael:Hey,
Wang
Wei,
what
are
you
thinking
about
Wang
Wei:Oh,
I'm
thinking
about
life
in
the
countryside.
Michael:Do
you
like
the
countryside
Wang
Wei:Yes,
I
like
it
very
much
because
the
air
is
fresher,
the
sky
is
bluer
and
the
rivers
are
clearer
there.
Michael:I
think
the
countryside
is
much
quieter
than
the
city,
too.
People
can
enjoy
the
beauty
of
nature
there.
Wang
Wei:My
grandma
lives
in
the
countryside
and
I
go
there
for
my
summer
holiday
every
year.
Michael:That
must
be
fun!
I
think
the
countryside
is
much
quieter
than
the
city,
too.
比较级前可加even(更加)much(……得多)，
far(……得多)a
little(……一点)a
bit(一点)，
a
lot(大量)still(还，还要)或倍数表示比较的程度。
注意:
比较级不能用very,
so,
too,
quite等修饰。
e.g.
The
jacket
is
a
little
/
much
cheaper
than
the
sweater.
这件夹克比那件毛衣贵一点/贵得多。
Language
points
That
must
be
fun!那肯定很有趣！
must
be表推测.可以这样理解,be是系动词的总称,可以看成一个动词,意思是“是”,在这里跟在must后面.
后面接形容词、名词或副词形式做表语.
如接副词：He
must
be
here.他一定在这里.
如接形容词：
It
must
be
interesting.这一定很有趣.
如接名词：
She
must
be
a
doctor.她肯定是名医生.
Fill
in
the
blanks.Then
read
it
aloud.
1c
Wang
Wei
likes
the
countryside
very
much
because
he
thinks
the
air
is
(1)_________,
the
sky
is
(2)_______
and
the
rivers
are
(3)________
there.
Michael
thinks
the
countryside
is
much
(4)
________
than
the
city,
too,
so
people
can
enjoy
the
beauty
of
nature.
Wang
Wei
goes
to
the
countryside
every
year
for
his
summer
holiday.
fresher
bluer
clearer
quieter
Read
and
act
1a
out.
Role
play
Michael:Hey,
Wang
Wei,
what
are
...
Wang
Wei:Oh,
I'm
thinking
....
Michael:Do
you...
Wang
Wei:Yes,
I
...
because
...there.
Michael:I
think....
People
....
Wang
Wei:My
grandma
...
and
I
....
Michael:That
...!
Free
talk
Do
you
agree
with
Wang
Wei
and
Michael
Which
do
you
like
better,
the
countryside
or
the
city
Why
good比较级--better
E.g:I
like
the
countryside
better
because
the
air
is
fresher,
the
sky
is
bluer
and
the
rivers
are
clearer
there...
E.g：I
like
the
city
better
because
the
road
is
wider.
/the
parks
are
bigger
...
New
drills
There
are
many
farms
in
the
countryside.
Find
out
the
animals
in
the
video.
duck
cow
cat
dog
pig
chicken
What
other
animals
can
we
see
in
the
countryside
hen母鸡
goose鹅
sheep羊
复数sheep
复数geese
rabbit
horse
mouse
复数mice
small
big
<
<
The
mice
are
smaller
than
the
hens.
The
hens
are
smaller
than
the
geese.
The
mice
are
the
smallest
of
all.
The
hens
are
bigger
than
the
mice.
The
geese
are
bigger
than
the
hens.
The
geese
are
the
biggest
of
all.
最高级前面通常带the
The
horses
are
thinner
than
the
cows.
The
cows
are
thinner
than
the
pigs.
The
horses
are
the
thinnest
of
all.
>
>
thin
fat/heavy
The
pigs
are
fatter/heavier
than
the
cows.
The
cows
are
fatter/heavier
than
the
horses.
The
pigs
are
the
fattest/heaviest
of
all.
1.
一般在词尾直接加er/est:
tall—taller—tallest
2.
以e
结尾的单词去e加er/est:
wide—wider—widest
3.
以辅音字母加y结尾的单词，把y改成i,
再加
er/est
:
heavy—heavier—heaviest
以重读闭音节结尾，且末尾只有一个辅音字母的单
词，双写末尾的辅音字母，再加er/est
:
big—bigger—biggest
,
(fat,
thin,
red,
hot)
单音节及部分双音节形容词比较级（-
er）和最高级（-
est）的规则变化。
Study
the
rules
carefully
and
complete
the
table.
2b
Adjective
strong
tall
nice
brave
Comparative
stronger
nicer
Superlative
strongest
nicest
tallest
braver
taller
bravest
Adjective
big
fat
thin
lazy
ugly
Comparative
bigger
lazier
Superlative
biggest
laziest
fatter
fattest
thinner
thinnest
uglier
ugliest
Pre-listening
One
day,
the
children
were
visiting
a
farm.
There
were
many
animals
here.
Listen
to
the
conversation
and
fill
in
the
blanks.
2a
Yukio:
Kangkang,what’s
the
strongest
animals
on
the
farm
Kangkang:
Horses.
I
think
the
______horse
over
there
is
________
than
the
_______
horses.
Sally:
I
think
the
sheep
are
the
niceset
of
all.
Helen:
But
I
think
this
cat
is
______.
He
lets
me
hold
him.
Yukio:
The
pigs
must
be
the
fattest
and
laziest
animals
on
the
farm.
What
do
you
think,
Sally
Sally:
But
I
think
the
pigs
are
_______.
Look!
They
are
swimming
and
chatting
with
the
hens
and
ducks.
taller
stronger
shorter
nicer
cuter
Kangkang:The
cat
is
running
after
a
mouse
and
the
dog
is
playing
with
the
rabbit.
Helen:
Look!
The
cows
and
the
sheep
are
eating.
All
the
animals
are
living
a
_______
life
on
the
farm.
better
Look
at
the
picture
and
choose
the
correct
word
for
each
animal.
Then
make
conversations
with
the
adjectives
in
2b.
3
(
One
day,
the
animals
on
the
farm
were
talking.)
Dog
:
I’m
the
strongest
on
this
farm.
Rabbit
:
I
don’t
think
so.
The
pig
is
stronger
than
you
.
Dog
:
Ha!
Ha
!
He
is
lazier
than
me
.
…
horse
pig
cow
cat
sheep
mouse
hen
goose
duck
dog
rabbit
形容词比较级最高级规则变化:
1.一般直接在词尾加er;
est
2.以字母e结尾的直接加r;
st
3.以辅音字母加y结尾的形容词，要变y为i再加er;
est
4.
以重读闭音节结尾且末尾只有一个辅音字母的形容词，要双写末尾的辅音字母再加er;
est
构成方式：
1.A
is
+adj.比较级
than
B.
2.A
is
the
+adj.最高级
of
all
/
the+...
Summary
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Unit
4
Our
World
Topic
1
What's
the
strongest
animal
on
the
farm
Section
A同步练习
1、写出下列词语的比较级和最高级形式。
1.blue
——
2.strong
——
3.tall
——
4.nice
——
5.noisy
——
6.big
——
7.fat
——
8.thin
——
9.quiet
——
10.easy
——
二、单选。
1.Look
at
the_______.
Animals
on
the
farm
are
very
cute.
A. a
hen B. mouses C. apples D. pigs
2.Monkeys
are
the
_______
animals
in
the
world.
They
can
do
something
like
us.
A. smallest B. strongest C. cleverest D. thinnest
3.Mike
is
______,
but
his
brother
Sam
is
much
______.
A. heavy;
heavier B. heavy;
heaviest
C. heavier;
heaviest D. heavier;
the
heaviest
4.
—Which
is______，the
sun，the
moon
or
the
earth
—Of
course．the
moon
is．
A. biggest B. the
biggest C. smallest D. the
smallest
5.Peter
is
_______
boy
in
our
class
and
he
often
helps
us
carry
heavy
things.
A. strong B. stronger C. strongest D. the
strongest
三、完成句子。
1．农场最壮的动物是什么？
What’s________
________
________on
the
farm
2．我觉得这些老鼠是最丑的动物。
I
think
these________
are________
________
of
all.
3很多人喜欢住在农村因为可以享受到大自然的美。
Many
people
like
to
live
in
the
countryside
because
they
can________
________
________
________
nature.
4．农村的河比城市的干净。
The
rivers
in
the
countryside_____
________
________that
of
the
city.
5．猪一定是农场最懒最肥的动物。
The
pigs________
________
_____
________and
_____
________animals
on
the
farm.
四、阅读。
John
lives
on
a
farm.
The
farm
is
not
very
big.
His
parents
grow
rice
and
corn.
They
don’t
use
animals
to
do
farm
work
any
more.
Today
they
use
a
tractor(拖拉机).
It
works
faster
and
better.
After
he
does
his
work
in
the
fields,
he
likes
to
sit
and
look
at
the
blue
sky
and
the
green
hills.
He
thinks
the
country
is
more
beautiful
than
the
city.
In
the
city,
he
can’t
hear
the
animals.
In
the
country,
he
can
hear
birds
singing.
He
likes
to
play
with
his
dog,
Cody.
Cody
is
a
very
interesting
dog.
He
likes
to
follow
people.
When
they
stop,
he
stops.
When
they
walk,
he
walks.
John
thinks
Cody
is
the
best
dog
of
all.
（1）John’s
parents
are
________.
A. workers B. teachers C. doctors D. farmers
（2）They
use
a
tractor
to
_______.
A. carry
rice
and
corn
B. carry
animals
C. help
to
do
farm
work D. drive
to
town
（3）What
does
John
do
after
his
work
A. He
sit
down
and
looks
at
the
blue
sky
and
the
green
hills.
B. He
goes
shopping
in
the
tractor
in
town.
C. He
helps
his
parents
with
some
more
farm
work.
D. He
walks
his
dog
in
the
fields.
（4）John
likes
to
live
in
the
country
because
______.
A. he
can
live
on
their
crops B. he
can
hear
the
animals
C. he
can
play
with
his
dog
D. he
thinks
the
country
is
more
beautiful
than
the
city
（5）John’s
dog
is
very
______.
A. lazy B. well C. funny D. boring
Unit
4
Our
World
Topic
1
What's
the
strongest
animal
on
the
farm
Section
A同步练习
答案
一、1.bluer
bluest
2.stronger
strongest
3.taller
tallest
4.nicer
nicest
5.noisier
noisiest
6.bigger
biggest
7.fatter
fattest
8.thinner
thinnest
9.quieter
quietest
10.easier
easiest
二、DCADD
四、（1）D
（2）C
（3）A
（4）D
（5）C
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