人教版英语八年级下册unit 7 What’s the highest mountain in the world? Section A Grammar Focus（26张）

(共26张PPT)
Unit7
What’s
the
highest
mountain
in
the
world?
Section
A（Grammar
Focus-4c）
Revision
1.自然的力量
2.
厚厚的云层
3.
随意做某事
4.
就我所知
5.
成功做某事
6.
冒生命危险
7.
挑战自己
8.
面对困难
9.
永不放弃做某事
10.实现梦想
the
forces
of
nature
thick
clouds
feel
free
to
do
sth
as
far
as
I
know
succeed
in
doing
sth.
risk
one’s
lives
challenge
oneself
in
the
face
of
difficulties
never
give
up
doing
sth
achieve
dreams
=make
dreams
come
true
Dictation
Grammar
focus
1.
—世界上最高的山峰是哪个？
—
珠穆朗玛峰。
—
What’s
____________
mountain
in
the
world?
—
Qomolangma.
Fill
in
the
blanks
according
to
Grammar
Focus.
the
highest
2.
—珠穆朗玛峰有多高？
—它有8844.43米高。它比别的山都
高。
—
How
high
is
Qomolangma?
—
It’s
_________________.
It’s
_______
than
any
other
mountain.
8844.43
meters
high
higher
3.
—世界上最深的咸水湖是哪个？
—里海是世界上最深的咸水湖。
—
Which
is
___________
salt
lake
in
the
world?
—
The
Caspian
Sea
is
_________________________________.
the
deepest
the
deepest
of
all
the
salt
lakes
4.
—你知道中国是世界上最古老的国家
之一吗？
—我知道。中国比美国古老得多。
—
Did
you
know
that
China
is
______________________
in
the
world?
—
Yes,
I
did.
It’s
much
older
than
the
US.
one
of
the
oldest
countries
比较级
常用句型
最高级
常用句型
词形构成
定义
形容词和
副词比较级和最高级
定义
比较级用于两者（人或事物）的比较，表示其中一个比另一个“更……”或“较……”，后面用连词than连接另一个被比较的人或事物。
最高级用于三者或三者以上的人或事物之间的比较，表示在一群人或事物中“最……”。
词形构成
形容词的比较级和最高级构成
规则变化
不规则变化
规则变化
构成方法
比较级、最高级
单音节和部分双音节词
一般在形容词词尾加-er，est
greater-greatest
以不发音的字母
e
结尾的形容词,只在词尾加-r,
st
nicer,
nicest
以“辅音字母+
y”结尾的形容词，先把
y
变为
i，再加-er,
est。
easier,
easiest
以重读闭音节结尾，且末尾只有一个辅音字母的形容词，须先双写这个辅音字母再加-er,
est。
hotter,
hottest
双音节词和多音节词
其他双音节和多音节词，在前面加more，most来构成比较级和最高级。
more
important
most
important
原形
比较级
最高级
good,
well
better
best
bad/
badly
worse
worst
little
less
least
many,
much
more
most
old
older/
elder
oldest/eldest
far
farther/
further
farthest/
furthest
不规则变化
1.
两者进行比较用比较级
。
Tim
is
as
tall
as
Tom.
（Tim和Tom一样高）
Tim
is
not
as
(so)
tall
as
Tom.
（Tim不如Tom一样高）
Tim
is
taller
than
Tom.
（Tim比Tom高）
(1)
A=
B
:
as+原级+
as
A
和B
一样….
(2)
A<
B
not
as
(so)+
原级+
as
A不如B…
(3)
比较级+
than
A比B...
2.
比较级前还可加其他表示数量的词。
My
sister
is________________
than
me.
我的妹妹比我小十岁。
We
reached
here______________
than
the
others.
我们比其他人早两天到这里。
two
days
earlier
ten
years
younger
1.
比较级前可加much,
a
lot,
a
little,
a
bit,
even,
still,any等词修饰。如：
You
must
run
much
faster
if
you
want
to
win.
You
look
a
lot
happier
than
you
did
yesterday.
He
was
too
tired
to
walk
any
further.
This
book
is
even
more
useful
than
that
one.
形容词和副词比较级的修饰语
2.the+比较级
Lucy
is___________(fat)of
the
two
girls.
the
fatter
两者中的特指
e.g.
Lily
has
a
doll,
but
she
wants?a
_______
one.
bigger
This
place
is
not
big
enough
for
Lucy’s
birthday
party.
We
should
find
a
_____
one.
big?
??
??
??
???
B.
small?
??
??
?
C.
bigger?
??
??
??
?
D.
smaller
C
3.
“a/an
+
比较级”?表示“又一，再一”
e.g.
Who
runs
faster,
Lucy
or
Lily?
You’d
better
come
earlier
next
time.
He
worked
hard
last
term,
but
he
works
even
harder
this
term.
4.
隐性比较（没有than的情况）
5.越来越......
a.
比较级+and+比较级
天气变得越来越冷
6.越...越...
b.
the+比较级+句子，the+比较级+句子
e.g.
The
more,
the
better.
越多越好（多多益善）
The
weather
is
getting_______________
.
colder
and
colder
最高级考点
说明：形容词的最高级前必须加the；
副词的最高级前省略the。
①
范围问题
e.g.
Tom
is
_________
student
in
the
class.
Tom
runs________in
the
class.
the
tallest
fastest
②
“最......之一”
one
of
the
+
最高级
+
名（复）
e.g.
Beijing
is________________
cities
in
the
world.
北京是世界上最大的城市之一。
③
“the+序数词+最高级”
e.g.
I
think
he
is
_______________
boy
in
his
class.
我认为他是他的班里第二高的男生
one
of
the
biggest
the
second
tallest
e.g.
Tom
is___________
student
in
the
class.
Tom是班里最高的学生。
=
Tom
is______
than
any
other________
in
the
class.
Tom比班里的其他任何一个男生都高。
=
Tom
is______
than
other
_________
in
the
class.
Tom比班里的其他男生都高
比较级和最高级的转换
the
tallest
taller
taller
student
students
1.Hainan
is
a
very
large
Island
.It
is
the
second
_________
island
in
china.
(large)
2.Our
teacher
is
as
______
as
before.
(busy).
3.He
is
______________
among
us.
(careful)
4.Li
Lei
jumped
far
______
than
Jim.
(far)
5.The
busier
he
is,
the
________
he
feels.
(happy)
6.I
think
Yao
Ming
is
one
of
____________
basketball
players
in
NBA.
(hot)
busy
the
most
careful
farther
happier
largest
the
hottest
完成句子
Fill
in
the
blanks
with
the
correct
forms
of
the
words
in
the
box.
big
much
popular
long
old
high
1.
The
Amazon
River
is
one
of
the
_______
rivers
in
the
world.
It’s
a
little
_______
than
the
Yangtze
River.
2.
Qomolangma
is
8,844.43
meters
_____.
It’s
one
of
the
most
________
places
for
serious
mountain
climbers.
longest
longer
high
popular
4a
3.
No
ocean
in
the
world
is
as
_____
as
the
Pacific
Ocean.
4.
Although
Japan
is
_____
than
Canada,
it
is
_______
smaller.
big
older
much
big
much
popular
long
old
high