(共26张PPT)
人教新目标八年级下册
Section
A
Grammar
Focus-4c
语法课公开课
1.在语境中认读、理解运用下列词汇:
ocean,
the
Pacific
Ocean；
2.理解用大数字表达长、宽、高、深的相关用法；
3.复习并掌握形容词和副词三个等级原级；比较级和最高级的用法；
4.通过4a和4b练习进一步巩固知识；
5.通过本节课学习,提高同学们对于保护濒危野生动物的意识。
Read
the
new
words
ocean
the
Pacific
Ocean
n.
大海；海洋
太平洋
sea
Top
of
the
world
1.The
Nile
is
the
longest
river
in
the
world.
2.The
Caspian
Sea
is
the
deepest
of
all
the
lakes.
3.Qomolangma
is
one
of
the
highest
mountains
in
the
world.
superlative
degree(最高级)
Geographic
facts
地理常识
the
longest
river
(have)
the
biggest
population
the
highest
mountain
the
biggest
country
the
biggest
desert
the
biggest
salt
lake
the
biggest
ocean
the
biggest
continent
Ask
and
answer
-
What
is
longest
river/the
biggest
country
in
the
world?
……
-
Which
country
has
the
biggest
population?
Grammar
Focus
What's
the
highest
mountain
in
the
world?
Qomolangma.
How
high
is
Qomolangma?
It's
8,844.43
meters
high.
It's
higher
than
any
other
mountain.
Which
is
the
deepest
salt
lake
in
the
world?
The
Caspian
Sea
is
the
deepest
of
all
the
salt
lakes.
Did
you
know
that
China
is
one
of
the
oldest
countries
in
the
world?
Yes,
I
did.
It's
much
older
than
the
US.
How
high
is
Qomolangma?
It’s
8,844.43
meters
high.
1.观察并总结:
8.844
43
meters
high
______+______+_____________(long,
high,
wide,
deep…)构成的;
提问时要用how+形容词+谓+主。
2.练一练：
(1)2500米深
____________________
(2)35千米宽
____________________
(3)6671千米长
____________________
基数词
量词
长\高\宽\深
2500
meters
deep
How
deep
is
the
lake?
35
kilometers
wide
How
wide
is
the
bridge?
6671
kilometers
long
How
long
is
the
river?
What's
the
highest
mountain
in
the
world?
Qomolangma.
How
high
is
Qomolangma?
It's
8,844.43
meters
high.
It's
higher
than
any
other
mountain.
Which
is
the
deepest
salt
lake
in
the
world?
The
Caspian
Sea
is
the
deepest
of
all
the
salt
lakes.
Did
you
know
that
China
is
one
of
the
oldest
countries
in
the
world?
Yes,
I
did.
It's
much
older
than
the
US.
形容词最高级
形容词比较级
规则变化
Revision:
形容词和副词的比较级和最高级
①直接加-er
或
-est
tall—________—______
long—_______—
________
taller
tallest
longer
longest
②以不发音的字母e结尾的单词直接加-r或
-st
nice—_____—
____
nicer
nicest
③以“辅音字母加y”
结尾,
把y变i，再加-er或-est
heavy—_______—
________
heavier
heaviest
④重读闭音节（末尾只有一个辅音字母）双写辅以字母
再加-er或-est
big—_______—
________
bigger
biggest
⑤部分双音节词和多音节词
分别在原级前加more构成比较级
和most构成最高级
slowly—_____________—
_______________
beautiful—__________________—
____________________
more
slowly
the
most
slowly
more
beautiful
the
most
beautiful
不规则变化
原级
比较级
最高级
good\well
better
best
bad\badly
worse
worst
many\much
more
most
little
less
least
old
older\elder
oldest\oldest
far
farther(更远)
further(进一步的)
farthest\furthest
Revision:
形容词和副词的比较级和最高级
英语中的副词和形容词有三个等级：原级，比较级和最高级
1.
…as
+原级
+as
…
“和…一样”
你和我一样高。
Lily和Lucy
跑的一样快。
You
are
as
tall
as
me.
Lily
runs
as
fast
as
Lucy.
2.
否定形式…not
so\as
+原级
+as
…
“前者不如后者”
你不如我高。
Lily跑得不如Lucy快。
You
are
not
so\as
tall
as
me.
Lily
doesn’t
run
so\as
fast
as
Lucy.
3.
倍数+as+原级
+as
…
“…
是…的几倍；表倍数关系”
You
house
is
three
times
as
large
as
mine.
This
sofa
is
twice
as
big
as
that
one.
1.
主语+谓语+比较级+than+比较对象
“…比…如何”
汤姆比他弟弟聪明。
他跑得比汤姆快。
Tom
is
cleverer
than
his
brother.
He
runs
faster
than
Tom.
2.
主语+谓语+the+比较级+of
the
two
“主语是两者中较…的一个”
杰克是兄弟二人中较瘦的一个。
Jack
is
the
thinner
of
the
two
brothers.
3.
the+比较级…
，the+比较级…
“越…，就越…”
孩子们越早学会独立，对他们的未来就越好。
你学习越努力，你越能取得好成绩。
The
earlier
kids
learn
to
be
independent,
the
better
it
is
for
their
future.
The
harder
you
study,
the
better
grades
you
will
get.
4.
比较级+and+比较级…
“越来越…”
越来越好，
越来越高
越来越美丽，
越来越外向
better
and
better,
taller
and
taller.
more
and
more
beautiful\outgoing
我们的国家正变得越来越强大。
雪正下得越来越大。
Our
country
is
becoming
stronger
and
stronger.
5.
比较级前可用even,
far,
much,
a
little,
bit等修饰，表示程度。
你对此事的了解甚至还不如我。
大象比熊猫中的多。
You
know
______less
about
it
than
I
do.
The
elephant
weighs
______
more
than
the
panda.
even
much
形容词和副词的最高级常用于______或_________的人或事(物)之间的比较。在句中使用时,形容词最高级前通常用_____.句中常含有表示比较范围的介词_____或_____。常用的句型结构为:
三者以上
三者
the
in
of
1.
主语+谓语+(the)+最高级+in\of
…
“…中最…”
这是所有故事中最令人惊讶的。
This
is
the
most
amazing
story
of
all.
2.
主语+谓语+
one
of
the
+最高级+in\of
…
“…中最…之一”
它是我们镇上最宽的公路之一。
It
is
one
of
the
widest
roads
in
our
town.
3.
主语+谓语+the
+序数词+最高级+名词+in\of
…
“…中第…的”
李明是我们班第二高的男孩。
Li
Ming
is
the
second
tallest
boy
in
our
class.
4.
疑问词+谓语+the
+最高级，A，B
or
C?
“
在ABC中，谁最…？”
月亮，地球和太阳哪个最大？
Which
is
the
biggest,
the
moon,
the
earth
or
the
sun？
Attention
！注意！
最高级和比较级之间的转换
1.
Jim
jumps
(the)
highest.
吉姆跳得最高。
2.
She
is
my
best
friend.
她是我最好的朋友。
3.
He
is
a
most
interesting
man.
他是个非常有趣的人。
副词最高级前的the可以省略。
最高级前有物主代词或名词
所有格，不再用the
表示“非常”的most
前不加the。
汤姆是他班里最高的。
汤姆比他班里其他任何一个学生都搞。
Tom
is
the
tallest
in
his
class.
Tom
is
taller
than
any
other
student\the
other
students
in
his
class.
=
形容词和副词的最高级可与“比较级+than+any
other
单数名词”或“比较级+than
+the
other+复数名词”进行相互转换。
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.
3.
No
ocean
in
the
world
is
as
_____
as
the
Pacific
Ocean.
4.
Although
Japan
is
_______
than
Canada,
it
is
_______
smaller.
longest
longer
high
popular
big
4a
older
much
4b
Write
two
comparisons
about
two
topics.
the
Yangtze
River
the
Amazon
River
＆
The
Yangtze
River
The
Amazon
River
6,300km
6,480km
1.
The
Yangtze
River
is
almost
as
long
as
the
Amazon
River.
2.
The
Amazon
is
longer
than
the
Yangtze,
but
the
Yangtze
is
the
longest
river
in
China.
Two
cities:
Ji
Nan
＆
Bei
Jing
population
of
Ji
Nan
Population
of
Bei
Jing
8,700,000
21,540,000
The
population
of
Jinan
is
not___
_____
_____
that
of
Beijing.
The
population
of
Beijing
is
______
______than
that
of
Jinan,
as
large
as
much
large
Two
animals:
tigers
＆
elephants
The
tigers
run
_____
_____
than
elephants.
The
elephants
weighs
______
______than
tigers,
much
faster
much
more
4c
Group
work
Write
five
questions
about
Chengdu
using
comparisons.
Then
discuss
your
questions
in
groups.
1.
_________________________________
2.
_________________________________
3.
_________________________________
4.
_________________________________
5.
_________________________________
What
is
the
highest
building
in
Chengdu??
What
is
the
largest
single
buiding
in
Chengdu?
Which
is
the
busiest
road
in
Chengdu?
What
is
the
most
popular
street
in
Chengdu?
What
is
the
most
delicious
food
in
Chengdu?
Guessing
game
长度、宽度、高度、深度的表示法
长度、宽度、高度、深度的表示法，有一个专门的结构，那就是“基数词
+
单位名词
+
形容词”
Practise
那面镜子有两米长。
The
mirror
is
two
_____
______.
meters
long
我们走上三层楼，大概10米左右高。
We
walk
up
three
floors,
which
is
about
____
_____
______.
ten
meters
high
教室有25英尺长，20英尺宽。
The
classroom
was
25
feet
in
______and
20
feet
in
______.
2.
除了以上的表示方法，有时也可以用“基数词
+
单位词
+
in
+
长度或者重量的名词”来表示长度、宽度、高度、深度。若表示重量，可以用in
weight结构。
Practise
珠穆朗玛峰有9，600,000平方公里大。
Qomolangma
is
about
9,600,000
square
kilometers
____
______.
in
size
length
width
用所给单词的正确形式填空。
I
jumped
______(high
)than
Bill
in
the
sports
meet
last
year
Of
all
the
drinks,
tea
is
_________(old)
in
the
world.
It
has
5,00
years
of
history
in
China.
Mr.
Smith
thought
the
Century
Park
was
the
second
________
(large)
in
Shanghai.
The
_______(busy)he
is,
the
________(happy)he
feels,
I
think
English
is
as
__________(important)
as
math
What
do
you
think
of
the
dress?
Wonderful.
I
don't
think
I
can
find
______(good)one.
The
end-of-class
test
higher
the
oldest
largest
busier
happier
important
better
Homework
Preview
next
lesson.
Find
out
some
differences
between
an
adult
panda
and
a
baby
panda.
谢谢
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Unit7
Section
A
Grammar
Focus-4c同步练习
I.
根据句意及汉语提示完成句子
1.The
role
will
be
the
biggest_________(挑战)
of
his
acting
career.?
2.Whether
I’ll
go
there
depends
on
the
weather
________(状况).?
3.His
pets
_________(包括)
two
cats
and
a
dog.?
4.Look
at
the
__________(厚的)
black
clouds.
It’s
going
to
rain.?
5.We
try
to
celebrate
the
_________(成就)
of
those
great
scientists.?
II.
用所给单词的适当形式填空
6.
All
the
English
teachers,
________(include)
Miss
Li,
will
come
to
the
meeting.?
7.My
brother,
Jim,
_______(succeed)
in
reaching
the
top
of
Mount
Huang
last
summer.?
8.I
think
it
is
very
dangerous
for
us
________(climb)
this
mountain.?
9.She
gave
up
(go)
to
the
party
because
she
had
to
look
after
her
sister.?
10.On
weekends,
many
people
go
to
the
forest
and
enjoy
themselves
in
the
(nature)
world.?
11.Do
the
Himalayas
run
along
the
(southwest)
part
of
China??
12.You
should
drive
more
carefully
in
(freeze)
weather.?
13.The
snow
here
was
(thick)
than
that
over
there.?
14.Running
is
one
of
the
most
popular
(sport)
in
the
world.
Many
people
do
this
kind
of
sport
to
keep
healthy.?
15.The
little
kids
found
it
exciting
(ride)
horses.?
16.Tu
Youyou
is
the
first
Chinese
woman
scientist
_________(win)
a
Nobel
Prize.?
III.
用方框中所给短语或常用表达的适当形式填空
17.People
will
find
it
difficult
________air
as
they
get
near
the
top
of
Qomolangma.?
18.The
doctors
to
take
care
of
the
sick
persons
during
the
fight
against
COVID-19.?
19.The
old
woman
by
her
efforts
at
the
age
of
80.?
20.The
old
man
advises
the
little
girl
if
she
wants
to
succeed
in
her
studies.?
21.Liu
Xiang
couldn’t
run
before
after
hurting
his
leg.?
IV.
根据汉语意思完成句子
22.面对困难时,不要害怕。
Don’t
be
afraid
_______ the
_______of
difficulties.?
23.他最终实现了自己的梦想。
He
his
dream
the
end.?
24.有时人类比自然力更强大。
Sometimes
humans
can
be
stronger
than
the
.?
25.即使危险,我们也要尽力帮助他。
it’s
dangerous,
we’ll
try
him.?
26.打开窗户,呼吸一些新鲜空气。
Open
the
window
and
some
fresh
air.?
V.
单项选择
( )27.Look!
The
snow
is
falling
very
__________.?
A.
hard
B.
hardly
C.
heavy
( )28.Jimmy’s
room
is
than
Mr.
Wu’s.?
A.
three
time
bigger
B.
three
times
as
bigger
as
C.
three
times
bigger
( )29.Please
the
table
with
a
newspaper.?
A.
take
B.
cover
C.
reach
( )30.The
Yellow
River
is
one
of
in
China.?
A.
the
longest
rivers
B.
the
longest
river
C.
longer
rivers
( )31.—The
Internet
service
fees
are
too
high,
and
the
speed
is
too
slow.
—That’s
why
Premier
Li
Keqiang
asks
operators(运营商)
to
provide
Internet.?
A.
many
cheaper
and
quicker
B.
much
cheaper
and
quicker
C.
more
cheaper
and
quicker
VI.完形填空
A
Cat
from
God
One
day
a
pastor’s(牧师的)
cat
climbed
up
a
tree
and
then
was
afraid
to
come
down.
The
pastor
tried
his
best
but
nothing
32 .?
Later,
the
pastor
decided
that
if
he
tied
a
rope(绳)
with
one
end
to
the
tree
and
the
other
end
to
his
car
and
33
away
so
that
the
tree
would
bend
down(弯下来),
and
he’d
get
the
cat
down.?
He
did
all
the
things.
But
when
the
34
moved
a
little
farther,
the
rope
broke.
The
tree
rebounded(反弹)
so
hard
that
the
cat
was
out
of
his
35 .?
The
pastor
felt
very
sad.
He
walked
around
the
city
to
look
for
his
cat.
However,
nobody
saw
the
small
36 .?
A
few
days
later
he
met
one
of
his
church
members
in
a
store.
He
was
37
to
see
cat
food
in
her
shopping
bag.
This
woman
used
to
38
cats.
So
he
asked
her,
“What
did
you
buy
the
cat
food
for?”?
She
told
him
that
her
little
daughter
always
expected
a
cat,
but
she
kept
39 .
Then
a
few
days
ago,
the
girl
wanted
it
again,
so
she
finally
said,
“Well,
if
God
gives
you
a
cat,
I’ll
40 .”?
“My
child
went
out
in
the
yard
and
asked
God
for
a
cat,”
she
went
on.“And
you
won’t
believe
this!
A
cat
41
came
down
from
the
blue
sky
and
landed
right
in
front
of
her.”?
( )32.A.owned
B.
performed
C.
worked
( )33.A.put
B.
drove
C.
took
( )34.A.ship
B.
bike
C.
car
( )35.A.mind
B.
heart
C.
sight
( )36.A.animal
B.
tree
C.
person
( )37.A.excited
B.
surprised
C.
interested
( )38.A.love
B.
keep
C.
hate
( )39.A.refusing
B.
promising
C.
agreeing
( )40.A.accept
B.
move
C.
receive
( )41.A.heavily
B.
suddenly
C.
completely
Unit7SectionAGrammar
Focus-4c
同步练习参考答案
I.1.challenge 2.conditions 3.include
4.thick 5.achievements
II.6.including 7.succeeded 8.to
climb
9.going 10.natural 11.southwestern
12.freezing 13.thicker 14.sports
15.to
ride 16.to
win
III.17.to
take
in 18.risked
their
lives
19.achieved
her
dream
20.not
to
give
up 21.as
fast
as
IV.22.in;
face 23.achieved/realized;
in
24.forces
of
nature
25.Even
though/if;
to
help
26.take
in
V.27-31ACBAB
VI.32—36 CBCCA 37—41 BCAAB
risk
one’s
life,
take
in,
achieve
one’s
dream,
give
up,
as
fast
as
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