(共37张PPT)
Unit
3
Computers
Grammar
牛津深圳版（广州·沈阳通用）
八年级上
Lead
in
Will
computers
make
our
lives
better?
Free
talk
Complete
the
article.
The
first
computers
were
_________
than
cars,
but
now
they
are
becoming
________
and
_________.
Computers
can
calculate
at
a
_______
speed
than
we
can.
Computers
are
not
_________
than
human
beings,
but
they
may
be
able
to
do
a
_________
job
than
us.
In
the
past,
computers
were
_______
expensive,
but
now
they
are
much
________.
cheaper
cleverer
faster
smaller
bigger
more
better
better
Revision
While
-
Learning
A
The
comparative
of
adjectives
When
we
compare
two
people
or
things,
we
can
use
the
comparative
of
adjectives.
Adjectives
Comparative
of
adjectives
cheap
cheaper
tall
taller
interesting
more
interesting
expensive
more
expensive
Grammar
short
-
shorter
small
-
smaller
nice
nicer
safe
safer
-
-
-
-
-
-
big
thin
heavy
heavier
happy
happier
找规律
bigger
thinner
Grammar
Focus
delicious
–
more
delicious
interesting
–
more
interesting
important—
more
important
carefully---more
carefully
quickly---more
quickly
slowly---more
slowly
easily---
more
easily
找规律
-er
more
than
How
do
we
form
the
comparative
of
adjectives?
比较级形式
例词
单音节形容词
大多数单音节形容词
+
-er
high
→
higher
small
→
smaller
以-e结尾
+
-r
large
→
larger
wide
→
wider
一个元音
+
一个辅音
双写辅音字母，再加-er
big
→
bigger
hot
→
hotter
双音节形容词
以-y或-ly结尾
去掉y，再加-ier
happy
→
happier
silly
→
sillier
以非重读元音、/l/或/R(r)/结尾
+
-er(-r)
clever
→
cleverer
simple
→
simpler
以-ful，-less，-ed，-ing结尾
more
+
形容词原级
careful→
more
careful
boring
→
more
boring
多音节形容词
含三个或三个以上音节
more
+
形容词原级
difficult
→more
difficult
popular→
more
popular
形容词和副词比较级的用法
1.Who
runs
faster,
he
or
she?
2.He
runs
faster
than
she.
3.He
runs
much
faster
than
she.
4.He
becomes
healthier
and
healthier.
5.The
more
you
exercise,
the
healthier
you
will
be.
6.She
is
less
healthy
than
he.
1.
表示两者之间的选择,
可用“Which/Who
…
+
比较，…or…?”.
2.
表示两者之间的比较，通常用连词
than
引导，表示“更······一些”．
3.
much/far/a
lot,
even,
still,
a
little/a
bit
…
修饰比较级,表示程度.
Who
runs
faster,
he
or
she?
He
runs
faster
than
she.
He
runs
much
faster
than
she.
4.
“比较级+and+比较级”表示“越来越……”
5.
“the+比较级
,
the
+
比较级”表示“
越…,
越
…”
He
becomes
healthier
and
healthier.
The
more
you
exercise,
the
healthier
you
will
be.
Shanghai
is
becoming
more
and
more
modern.
6.
表示不及另一方时，用“less+原级+than…”
(双音节和多音节词)
She
is
less
healthy
than
he.
He
is
healthier
than
she.
more
expensive
lighter
Complete
the
conversation
below
with
the
comparative
of
the
adjectives
from
the
box.
Practice
heavier
smaller
bigger
S1:
_____________________,
Canada
or
China?
(country/big)
S2:
__________________________.
Which
country
is
bigger
Canada
is
bigger
than
China
Ask
and
answer
questions
using
the
following
information.
The
first
one
has
been
done
for
you.
(country/big)
Canada/China
Hong
Kong
Shanghai
the
Yellow
River
the
Yangtze
River
Hainan
Island
Taiwan
Island
Mountain
Tai
Yellow
Mountain
(city/big)
(river/long)
(island/large)
(mountain/high)
Work
in
pair
B
The
superlative
of
adjectives
￥6,000
￥4,600
￥7,500
.
The
red
laptop
is
the
smallest
among/of
the
three,but
it
is
the
most
expensive.
Grammar
When
we
compare
more
than
two
people
or
things,
we
use
the
superlative
of
adjectives.
Adjectives
Superlative
of
adjectives
high
the
highest
careful
the
most
careful
interesting
the
most
interesting
-est
most
the
How
do
we
form
the
superlative
of
adjectives?
最高级形式
例词
单音节形容词
大多数单音节
形容词
+
-est
high
→highest
small
→smallest
以-e结尾
+
-st
large
→largest
wide
→widest
一个元音
+
一个辅音
双写辅音字母，再加-est
big
→biggest
hot
→
hottest
双音节形容词
以-y或-ly结尾
去掉y，再加-iest
happy
→
happiest
silly
→
silliest
以非重读元音、
/l/或/R(r)/结尾
+
-est(-st)
clever
→
cleverest
simple
→
simplest
以-ful，-less，
-ed，-ing结尾
most+形容词原级
careful
→
most
careful
boring
→
most
boring
多音节形容词
含三个或三个以上音节
most+形容词原级
difficult
→
most
difficult
popular
→
most
popular
1.表示三者或三者以上比较,可用
“Which/Who
…”+最高级,…,…or
…?”表示.
2.
最高级+of/among
(同类比较)
in…
(范围比较)
形容词和副词的最高级的用法
Who
is
the
tallest,
Tom
,
Mike
,
or
Jack?
Tom
is
the
tallest
of
the
three.
Tom
runs
(the)
fastest
in
our
class.
4.one
of
+形容词最高级+名词复数表示“最…
之一”
3.
序数词修饰最高级
形容词和副词的最高级的用法
Mike
is
the
second
tallest
student
in
our
class.
Jack
is
one
of
the
tallest
students
in
our
class.
David:
I’d
like
to
see
some
of
your
cameras.
Salesman:
Certainly.
This
is
the
most
expensive
model.
This
is
the
cheapest
model.
This
is
the
newest
and
lightest
model.
a
b
c
David
is
shopping
for
a
camera.
Look
at
the
photos
and
write
the
letter
of
the
correct
model
after
each
statement.
(1)______
(2)______
(3)______
Practice
Tony:
Did
they
show
you
any
cameras?
David:
Yes.
The
(1)___________model
is
(2)____________________________.
The
(3)_______________model
costs
(4)_________.
The
(5)___________model
was
made
in
(6)_______.
The
(7)_________model
weighs
(8)_________.
expensive
light
old
small
smallest
99.8
mm
x
56.4
mm
x
24.5
mm
most
expensive
oldest
lightest
?3,589
2010
170
g
Complete
David’s
sentences
with
the
superlative
of
the
adjectives
from
the
box.
S1:
Which
is
the
biggest,
the
Earth,
the
Moon
or
the
Sun?
S2:
The
Sun
is
the
biggest.
the
Earth,
the
Moon
or
the
Sun?
(big)
a
bee,
a
butterfly
or
an
ant?
(small)
iron,
silver
or
gold?
(valuable)
a
bear,
a
whale
or
an
elephant?
(heavy)
a
spaceship,
a
plane
or
a
train?
(fast)
Ask
and
answer
questions
using
the
following
information.
The
first
one
has
been
done
for
you.
Work
in
pair
Post-Learning
Your
classroom
is
_________
(wide)
and
_________
(bright)?
than
ours.
2.
There
are
_______
(few)
hours
of
sunlight
a
day
in
winter
than
in
summer.
3.
They
may
be
_______
(good)
at
doing
their
jobs
than
doctors.
4.
Summer
is
__________
(hot)
season
of
the
year.
5.
We’ve
got
as
________
(many)
books
as
we
need.??
I
.用比较级或最高级完成句子。
wider
brighter
fewer
better
the
hottest
many
对点专练
6.
He
is
________
(young)
than
his
two
sisters.
7.
The
weather
is
getting
_______
(warm)
and
________
(warm)
.
8.
I
like
this
one.
It
is
________
(cheap)
than
others.
9.This
is
__________
(large)
apple
I
have
ever
seen.
10.
It
is
_______________
(delicious)
of
all
the
food.
younger
warmer
cheaper
the
largest
the
most
delicious
warmer
2.
—
How
do
you
usually
go
to
work?
—
On
foot.
Walking
is
much
_____
than
driving
during
the
heavy
traffic
time.
A.
fast
B.
faster
C.
fastest
D.
the
fastest
3.
I’ve
got
quite
a
few
dictionaries.
Among
them,
this
English
dictionary
is
____.
A.
much
useful
B.
more
useful
C.
the
most
useful
D.
a
little
useful
II.选择。
David
is
_____
student
in
our
class.
Nobody
is
taller
than
him.
A.
tall
B.
taller
C.
the
tallest
D.
tallest
一、选择题
1.
Julie
takes
good
care
of
the
family
dog.
She
is
________
than
her
brother.
A.
patient
B.
more
patient
C.
most
patient
D.
the
most
patient
2.
----Shaoyang
has
changed
a
lot
in
the
past
few
years.
-----Yes.
It
is
getting_________.
A.clean
B.cleaner
C.cleanest
D.
the
cleanest
能力提升
3.
----He
is
planning
to
walk
on
the
wings
of
a
flying
plane.
----What?I
have
never
heard
of
______idea
before.
A.
a
crazier
B.the
crazier
C.
a
craziest
D.the
craziest
4.
---Paul,do
you
prefer
weekdays
or
weekends?
----Weekdays,of
course.I'm
_______on
weekends.
A.busy
B.much
busier
C.more
busier
D.the
busiest
5.
Taking
a
subway
in
Chengdu
is
much
_______than
taking
a
taxi.
A.cheap
B.cheaper
C.cheapest
D.
the
cheapest
6.
Sam
is
11
years
old.Peter
is
16
years
old.
Peter
is
5
years
______than
Sam.
A.
older
B.shorter
C.newer
D.longer
7.
----Frank
has
changed
a
lot,
hasn't
he?
----Yes.
He
is
much
________because
he
exercises
every
day.
A.
strong
B.
stronger
C.
strongest
D.
the
strongest
8.
Shanghai
has
a
______
population
than
that
in
many
other
cities.
A.
older
B.
shorter
C.
newer
D.
longer
复习Grammar笔记，背写序数词。
完成导学卷的《课后练习》。
Homework
https://www.21cnjy.com/help/help_extract.php中小学教育资源及组卷应用平台
Unit
3
Computers
教学设计
课题
Period
3
Grammar
单元
Unit
3
学科
英语
年级
八年级上
教材分析
Grammar板块让学生掌握形容词比较级和最高级的形式和用法，并通过练习加以巩固。
学习目标与核心素养
语言知识
1.
学习形容词比较级和最高级的构成方式。2.
运用形容词比较级和最高级比较事物。
语言技能
能运用形容词比较级和最高级简单描述事物，进行交流。
重点
形容词比较级和最高级的概念和构成方式。
难点
运用形容词比较级和最高级比较事物。
教学过程
教学环节
教师活动
学生活动
设计意图
导入新课
Warm
upFree
talk:
Will
computers
make
our
lives
better?RevisionReview
the
text.
Free
talk
and
show
their
ideas
to
their
classmates.Fill
in
the
blank
with
correct
words
and
check
the
answers.
To
arouse
the
interest
and
lead
them
to
get
into
the
grammar
新课讲授
1.
Comparative
of
adjectives
Show
different
forms
of
the
comparative
of
adjectives.
Explain
the
usage
of
the
comparative
of
adjectives
2.
Superlative
of
adjectives
Show
more
superlative
of
adjectives
:
high,
careful,
interesting
,
tall,
heavy
,
important
,
difficult
,etcb.
Show
the
rules
of
forming
the
superlative
of
adjectives
c.
Ask
some
pairs
to
act
out
the
dialogue
3.
Practice
makes
perfect.Hand
out
the
exercise
and
let
students
finish
it
1.
Work
out
the
rule
of
forming
the
comparative
of
adjectives
Read
the
sentences
and
make
more
sentences
by
using
different
comparative
of
adjectives
Complete
the
dialogue
and
practice
the
dialogue
with
your
classmates,
then
make
more
conversation
by
using
the
comparative
of
adjectives
2.
a.
Know
the
different
forms
of
the
superlative
of
adjectives
b.
Work
out
the
rule
of
forming
the
superlative
of
adjectives
c.
Practice
the
dialogue
in
B1
and
B2
by
using
the
superlative
of
adjectives
3.
Finish
the
exercise
given
by
teacher
and
write
the
comparative
and
superlative
of
adjectives
1.
To
master
the
rules
and
usage
of
comparative
of
adjectives2.
To
master
the
rules
and
the
usage
of
the
superlative
of
adjectivesTo
help
them
remember
the
rules
of
the
grammar
课堂小结
Give
more
exercises
to
consolidate
the
rules
and
the
usage
of
the
comparative
and
superlative
of
adjectives
To
make
students
have
a
good
habit
of
taking
notes
and
have
a
general
understanding
of
this
class
To
make
students
have
a
good
habit
of
taking
notes
and
have
a
general
understanding
of
this
class
板书
Unit
2
Grammar一、形容词比较级和最高级的构成1.
单音节词和少数双音节词比较级和最高级的规则变化2.
其他双音节词或多音节词，在该词前面加more
/
most。二、形容词比较级和最高级的用法和常用结构1.
比较级两个人或两种事物比较时，用比较级。常见结构为：A
+
be
+形容词比较级+
than
+B。例如：注意：形容词比较级前可以用a
lot，much，far，even，still
和a
little等表示程度的词语修饰。2.
最高级三个或三个以上的人或事物比较，表示最高程度时，用最高级。常见结构为：A
+
be
+
the
+
形容词最高级+
比较范围(of
+同类的人/物，in
+范围)。例如：
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21世纪教育网(www.21cnjy.com)Unit
3
Computers
Period
3导学案
学生姓名
班级
序号
课题内容
Grammar
教材分析
Grammar板块让学生掌握形容词比较级和最高级的形式和用法，并通过练习加以巩固。
学习目标
与
核心素养
语言知识
1.
学习形容词比较级和最高级的构成方式。
2.
运用形容词比较级和最高级比较事物。
语言技能
能运用形容词比较级和最高级简单描述事物，进行交流。
学习重点
形容词比较级和最高级的概念和构成方式。
学习难点
运用形容词比较级和最高级比较事物。
写出下列词的比较级和最高级形式。
(
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)
(
www.21cnjy.com
)
(
www.21cnjy.com
)
(
www.21cnjy.com
)
(
21世纪教育网精选资料
)
中小学教育资源及组卷应用平台
21世纪教育网(www.21cnjy.com)
1.
large
__________
__________
2.
clever
__________
__________
3.
lazy
__________
__________
4.
few
__________
__________
5.
dirty
__________
__________
6.
wet
__________
__________
7.
heavy
__________
__________
8.
friendly
__________
__________
9.
warm
__________
__________
10.
careful
_____________
______________
11.
hot
__________
__________
12.
interesting
____________
____________
原级
比较级
最高级
原级
比较级
最高级
good/well
____________
____________
little
____________
____________
bad/ill
____________
____________
far
____________
____________
many/much
____________
____________
old
____________
____________
一、形容词比较级和最高级的构成
1.
单音节词和少数双音节词比较级和最高级的规则变化
规则
原级
比较级
最高级
1.
直接在词尾加.er
/
.est
tall
taller
tallest
2.
大多数以e
结尾的形容词，加?r
/
?st
nice
nicer
nicest
3.
以辅音字母加y
结尾的形容词，先把y
改为i，再加?er
/
?est
happy
happier
happiest
4.
重读闭音节词尾只有一个辅音字母时，双写该辅音字母，再加?er
/
?est
thin
thinner
thinnest
2.
其他双音节词或多音节词，在该词前面加more
/
most。
例如：
beautiful→more
beautiful→most
beautiful;
useful→more
useful→most
useful
二、形容词比较级和最高级的用法和常用结构
1.
比较级
两个人或两种事物比较时，用比较级。常见结构为：A
+
be
+形容词比较级+
than
+B。例如：
I
am
taller
than
you.
我比你高。
Pasta
is
more
delicious
than
pizza.
意大利面比披萨更好吃。
注意：形容词比较级前可以用a
lot，much，far，even，still
和a
little等表示程度的词语修饰。例如：
He
made
much
fewer
mistakes
than
I
did.
他比我犯的错误少得多。
He
is
even
richer
than
me.
他甚至比我还富有。
【拓展】
1）
“比较级+and+比较级”表示“越来越……”
He
becomes
healthier
and
healthier.
2）
“the+比较级
,
the
+
比较级”表示“
越…,
越
…”
The
more
you
exercise,
the
healthier
you
will
be.
2.
最高级
三个或三个以上的人或事物比较，表示最高程度时，用最高级。常见结构为：A
+
be
+
the
+
形容词最高级+
比较范围(of
+同类的人/物，in
+范围)。例如：
I
am
the
tallest
in
the
class.
我是班里最高的。
Pasta
is
the
most
delicious
of
the
three
kinds
of
foods.
在这三种食物中，意大利面是最好吃的。
【拓展】
1）
序数词修饰最高级
Mike
is
the
second
tallest
student
in
our
class.
2）one
of
+形容词最高级+名词复数表示“最…
之一”
Jack
is
one
of
the
tallest
students
in
our
class.
对点专练
一、用比较级或最高级完成句子。
1.
Your
classroom
is
_________
(wide)
and
_________
(bright)?
than
ours.
2.
There
are
_______
(few)
hours
of
sunlight
a
day
in
winter
than
in
summer.
3.
They
may
be
_______
(good)
at
doing
their
jobs
than
doctors.
4.
Summer
is
__________
(hot)
season
of
the
year.
5.
We’ve
got
as
________
(many)
books
as
we
need.??
6.
He
is
________
(young)
than
his
two
sisters.
7.
The
weather
is
getting
_______
(warm)
and
________
(warm)
.
8.
I
like
this
one.
It
is
________
(cheap)
than
others.
9.This
is
__________
(large)
apple
I
have
ever
seen.
10.
It
is
_______________
(delicious)
of
all
the
food.
二、选择
(
)
1.
David
is
_____
student
in
our
class.
Nobody
is
taller
than
him.
A.
tall
B.
taller
C.
the
tallest
D.
tallest
(
)
2.
—
How
do
you
usually
go
to
work?
—
On
foot.
Walking
is
much
_____
than
driving
during
the
heavy
traffic
time.
A.
fast
B.
faster
C.
fastest
D.
the
fastest
(
)
3.
I’ve
got
quite
a
few
dictionaries.
Among
them,
this
English
dictionary
is
____.
A.
much
useful
B.
more
useful
C.
the
most
useful
D.
a
little
useful
能力提升
选择题
(
)
1.
Julie
takes
good
care
of
the
family
dog.
She
is
________
than
her
brother.
A.
patient
B.
more
patient
C.
most
patient
D.
the
most
patient
(
)
2.
----Shaoyang
has
changed
a
lot
in
the
past
few
years.
-----Yes.
It
is
getting_________.
A.clean
B.cleaner
C.cleanest
D.
the
cleanest
(
)
3.
----He
is
planning
to
walk
on
the
wings
of
a
flying
plane.
----What?I
have
never
heard
of
______idea
before.
A.
a
crazier
B.the
crazier
C.
a
craziest
D.the
craziest
(
)
4.
---
Paul,do
you
prefer
weekdays
or
weekends?
----Weekdays,of
course.I'm
_______on
weekends.
A.busy
B.much
busier
C.more
busier
D.the
busiest
(
)
5.
Taking
a
subway
in
Chengdu
is
much
_______than
taking
a
taxi.
A.cheap
B.cheaper
C.cheapest
D.
the
cheapest
(
)
6.
Sam
is
11
years
old.Peter
is
16
years
old.
Peter
is
5
years
______than
Sam.
A.
older
B.shorter
C.newer
D.longer
(
)
7.
----Frank
has
changed
a
lot,
hasn't
he?
----Yes.
He
is
much
________because
he
exercises
every
day.
A.
strong
B.
stronger
C.
strongest
D.
the
strongest
(
)
8.
Shanghai
has
a
______
population
than
that
in
many
other
cities.
A.
older
B.
shorter
C.
newer
D.
longer
Grammar同步练习
一、单项选择。
(
)
1.
—Is
Andy
________
than
Amy?
—No.
Andy
is
as
________
as
Amy.
A.
taller;
tall
B.
short;
tall
C.
taller;
shorter
D.
shorter;
taller
(
)
2.
Bikes
are
________
in
our
city.
Many
people
like
to
go
out
by
bike.
A.
more
popular
and
more
popular
B.
most
popular
and
popular
C.
more
popular
and
most
popular
D.
more
and
more
popular
(
)
3.
Nowadays
people
wish
to
have
________
food
than
before
as
their
life
is
improved.
A.
healthy
B.
healthier
C.
healthiest
D.
the
healthiest
(
)
4.
Who’s
________,
Jean,
Joan
or
Jennet?
A.
thinner
B.
thinnest
C.
the
thinner
D.
the
thinnest
(
)
5.
—Nancy
is
________
about
things
like
homework
among
three
of
us.
—That’s
why
she
is
the
top
student
in
our
class.
A.
stricter
B.
strict
C.
the
strictest
D.
strictest
(
)
6.
I
have
________
books
than
you
have.
And
we
can
share
the
books
with
each
other.
A.
many
B.
much
C.
more
C.
most
(
)
7.
—How
are
you
today,
Mike?
—I’m
________
now.
I
don’t
think
this
medicine
is
good
for
me.
A.
badly
B.
better
C.
well
D.
worse
(
)
8.
—It’s
reported
that
Fuxing
highspeed
train
can
go
as
________
as
350
km
an
hour.
—Wow,
how
amazing!
A.
fastest
B.
faster
C.
fast
D.
the
fastest
(
)
9.
After
two
years
of
physical
training,
John
was
________
and
healthier.
A.
strong
B.
stronger
C.
strongest
D.
the
strongest
(
)
10.
—How
do
you
improve
your
English?
—________
you
speak,
________
your
English
will
be.
A.
The
less;
the
more
B.
The
more;
the
better
C.
The
less;
the
better
D.
The
more;
the
less
(
)
11.
—Why
do
many
people
buy
things
online
on
Nov.
11th?
—Because
there
are
so
many
sales,
and
the
prices
are
________
than
usual.
A.
more
lower
B.
much
lower
C.
lowest
D.
the
lowest
(
)
12.
—David
won
the
first
prize
in
the
invention
competition.
—Yes!
Sammy
did
a
little
________
than
him
and
won
the
second
prize.
A.
better
B.
the
best
C.
worse
D.
the
worst
(
)
13.
—Hello,
Amy.
Which
is
the
________
street
in
your
city?
—High
Street.
Many
people
go
shopping
there.
A.
busiest
B.
busily
C.
busy
D.
busier
(
)
14.
This
apple
is
________
of
all.
Give
it
to
that
small
child.
A.
the
biggest
B.
bigger
C.
the
bigger
D.
big
(
)
15.
Shanghai
is
one
of
________
in
China.
And
many
tourists
from
all
over
the
world
travel
here
every
year.
A.
the
largest
city
B.
large
cities
C.
the
larger
cities
D.
the
largest
cities
二、语法填空。
As
we
all
know,
life
in
the
future
will
be
different
from
the
life
today.
And
what
will
the
changes
be?
The
population
is
growing
fast.
There
will
be
many
people
in
the
world
and
most
of
them
will
have
1.________(long)
lives
than
people
now.
Computers
will
be
much
smaller
and
2.________(smart),
and
there
will
be
at
least
one
in
every
room.
And
computer
studies
will
be
one
of
3.______________________(important)
subjects
in
schools
then.
Travelling
will
be
much
cheaper
and
4.________
(easy).
And
more
and
more
people
will
go
to
other
countries
for
holidays.
There
will
be
changes
in
our
food,
too.
More
land
will
be
used
for
building
new
towns
and
houses.
Then
there
will
be
5.________(little)
room
for
cows
and
sheep
than
before,
so
meat
will
be
6.________________(expensive).
Maybe
no
one
will
eat
it
every
day.
Instead,
they
will
eat
more
fruit
and
vegetables.
Maybe
people
will
be
much
7._________(healthy).
参考答案：
课前预习
1.
larger,
largest
2.
cleverer,
cleverest
3.
lazier,
laziest
4.
fewer,
fewest
5.
dirtier,
dirtiest
6.
wetter,
wettest
7.
heavier,
heaviest
8.
friendlier,
friendliest
9.
warmer,
warmest
10.
more
careful,
most
careful
11.
hotter,
hottest
12.
more
interesting,
most
interesting
原级
比较级
最高级
原级
比较级
最高级
good/well
better
best
little
less
least
bad/ill
worse
worst
far
farther/further
farthest/furthest
many/much
more
most
old
older/elder
oldest/eldest
课堂同步
对点专练：
一、1.
wider,
brighter
2.
fewer
3.
better
4.
the
hottest
5.
many
6.
younger
7.
warmer,
warmer
8.
cheaper
9.
the
largest
10.
the
most
delicious
二、1-3
CBC
能力提升：1-5
BBABB
6-10
ABD
课后训练
一、1-5
ADBDC
6-10
CDCBBB
11-15
BCAAD
二、1.
longer
2.
smarter
3.
the
most
important
4.
easier
5.
less
6.
more
expensive
7.
healthier
