中小学教育资源及组卷应用平台
Unit7
What’s
the
highest
mountain
in
the
world?
SectionA1a—1c
导学案
【学习目标】
1、会读并且在语境中使用下列词汇：square,
meter,
deep,
desert,
Qomolangma,
the
Nile,
the
Caspian
sea,
the
Sahara
2、能够用英语表达hundred百,
thousand千,million百万以上的数字，会读小数点及小数点后面的数字。
3、学会使用以下比较级和最高级的结构:1.as+adj./adv(原级).+as
2.A
is
larger
than
any
other..,3.A
is
the
largest
of
all
the...,4.A
is
larger
than
all
the
other...
4、学习去欣赏自然之美,
倡导人与自然和谐共处。
【教学重难点】
掌握本课时中出现的生词和基本句型。
2、谈论地理和自然现象，学会对事实和数字的比较，提高听说能力。
【自主预习】
珠穆朗玛峰
________________________
高8844.43米______________________________
撒哈拉沙漠
___________________
约9600000平方公里____________________________
里海___________________________
深1025米_____________________________________
尼罗河_________________________
长6671千米__________________________________
最大的沙漠
____________________
最长的河
________________________
最高的山_________________________
珠穆朗玛是世界上最高的山峰。
_________________________________
【合作探究】
一、数字读法规则探究:
（1）十位和个位之间用“-”连接
。如twenty-one.
（2）百位和十位之间用_____连接，如：321__________________.
（3）从右往左数，三位一组，逗号隔开，依次是_______（千）______（百万）
_________（十亿）
练习：试着用英语写下下列数字。
(1)9，600，000____________________________________________________
(2)6,671
___________________________________________________
(3)8,844,43
___________________________________________________
二、知识点探究:
1.
the
highest
mountain
in
the
world
:世界最高峰
=
higher
than
any
other
mountain.
比任何一座山都高:
(1)the
+最高级+单数名词=any
other
+单数名词
eg
H
e
is
taller
than
any
other
boy
in
his
class.=
H
e
is
the
tallest
boy
in
his
class.
(2)the
other+可数名词复数”或the
others互换
(3)在同一个范围内进行比较:
用“than
any
other+可数名词单数”
不是在同一个范围内进行比较:则用“than
any+可数名词单数”。
E.g
Mr.Li
is
taller
than
any
student
in
his
class.李老师比他班上任何一个学生都高。
2.用来问物体高度、长度、深度、宽度等常用句型有：
A.How
high/tall/long/wide/deep…+
is
+主语?
It’s
+
数量
+
high/tall/long/wide/deep.
①
----How
high
is
the
building?
--It’s
about
100
meters
tall.
②
----How
tall
is
the
bridge?
--More
than
15
meters
tall.
③
----How
long
is
the
bridge?
--About
300
meters
long.
④
----How
wide
is
the
river?
--It’s
about
1kilometer
wide.
⑤
----How
deep
is
the
well(水井)?
--It’s
about
20
meters
deep.
B.有部分形容词有名词形式，如：long—length,high---height,wide---width
①
----What’s
the
length
of
the
bridge?
--It’s
200
meters
②
The
height
of
Mount
Tai
is
1,532
meters.
③
----What’s
the
width
of
the
river?
--About
120
meters.
HYPERLINK
"http://21世纪教育网(www.21cnjy.com)
"
21世纪教育网(www.21cnjy.com)(共31张PPT)
人教新目标版
八年级下
SectionA
1a-1c公开课
Unit
7
What’s
the
highest
mountain
in
the
world?
Let's
enjoy
the
beauty
of
the
world.
Warming-up
Brainstorm
Let's
have
a
quiz
about
some
geographical
facts
.
地理事实
1.
What’s
the
longest
river
in
the
world?
A.
Yangze
River
B.
The
Nile(尼罗河)
[
nail
]
尼罗河（Nile）是一条流经非洲Africa东部与北部的河流，自南向北注入地中海。尼罗河长6671公里，是世界上最长的河流。尼罗河在印第安人语言叫月亮的眼泪。
The
Nile
is
the
longest
river
in
the
world.
the
Nile
The
Nile
is
the
longest
river
in
the
world.
It’s
more
than
6,671
kilometers
long.
It
runs
through
9
countries.
It
runs
into
the
Mediterranean
Sea
(地中海)
in
the
end.
Which
is
the
longest
river
in
the
world?
2.
Which
is
the
biggest
desert
in
the
world?
A.
The
Sahara
B.
The
Gobi(戈壁)
/'dez?t/沙漠
撒哈拉沙漠是世界最大的沙漠，几乎占满整个非洲北部North
Africa。沙漠东西约长4,800公里(3000英里)，南北在1300公里至1900公里(800至1200英里)之间，总面积约9065000km?。
[
s?'hɑ:r?
]
The
Sahara
is
the
biggest
desert
in
the
world.
the
Sahara
The
Sahara
is
the
biggest
desert
in
the
world.
It
is
located
in
the
northern
Africa.
Its
climate
conditions
are
very
bad
and
is
one
of
the
earth's
most
unsuitable
for
biological
survival.
Which
is
the
biggest
desert
in
the
world?
3.
Which
is
the
highest
mountain
in
the
world?
A.
Qomolangma(珠穆朗玛)
B.
Mount
Tai
['t??um?u?lɑ:?m?]
珠穆朗玛峰（珠峰）是喜马拉雅山脉的主峰，是世界海拔最高的山峰，位于中国与尼泊尔边境线上。2005年中国国家测绘局测量的岩面高（裸高即地质高度）为8844.43米。
Qomolangma
is
the
highest
mountain
in
the
world.
Qomolangma
Qomolangma
runs
along
the
border
between
China
and
Nepal.
It
is
covered
with
snow
all
the
year
round.
It’s
8844.43
meters
high,
the
highest
in
the
world.
Which
is
the
highest
mountain
in
the
world?
4.
Which
is
the
deepest
salt
lake
in
the
world?
A.
Lake
Baikal(贝加尔湖)
B.
The
Caspian
Sea(里海)
['k?spi?n]
里海是世界上最深的咸水湖，位于欧洲和亚洲的交界处，大约1,025米深。里海一共与5个国家接壤，也是世界上接壤最多国家的湖。
The
Caspian
Sea
is
the
deepest
salt
lake
in
the
world.
the
Caspian
Sea
The
Caspian
Sea
(里海)
is
the
biggest
inland?lake
in
the
world.
It
lies
in
the
border
between
Asia
and
Europe.
Which
is
the
biggest
inland
lake
in
the
world?
-
What's
the
highest
mountain
in
the
world?
-
Qomolangma.
-
How
high
is
it
?
(
What's
the
height
of
it
?
)
-
It's
8,844.43
meters
high.
It's
the
highest
mountain
in
the
world.
It's
higher
than
any
other
mountain
in
the
world.
-
It's
8,844.43
meters
in
height.
It's
higher
than
the
other
mountains
in
the
world.
Presentation
meter
n.
米;
公尺
高度
-
What's
the
longest
river
in
the
world?
-
The
Nile.
-
How
long
is
it
?
(
What's
the
length
of
it?
)
-
It's
6,671
kilometers
long.
It's
the
longest
river
in
the
world.
It
is
longer
than
any
other
river
in
the
world.
-
It's
6,671
kilometers
in
length.
It
is
longer
than
the
other
rivers
in
the
world.
Presentation
kilometer
n.
千米
长度
-
What's
the
deepest
salt
lake
in
the
world?
-
The
Caspian
Sea.
-
How
deep
is
it
?
(
What's
the
depth
of
it?
)
-
It's
1,025
meters
deep.
It's
the
deepest
salt
lake
in
the
world.
It
is
deeper
than
any
other
salt
lake
in
the
world.
-
It's
1,025
meters
in
depth.
It
is
deeper
than
the
other
salt
lakes
in
the
world.
Presentation
deep
adj.
深的；纵深的
深度
-
What's
the
biggest
desert
in
the
world?
-
The
Sahara.
-
How
big
is
it
?
(
What
is
the
area
of
it?
)
-
It's
about
9,600,000
square
kilometers
in
size.
It's
the
biggest
desert
in
the
world.
It
is
bigger
than
any
other
desert
in
the
world.
(
What
size
is
it?
)
-
It
has/covers
an
area
of
9,600,000
square
kilometers.
-
The
area
of
it
is
9,600,000
square
kilometers.
It
is
bigger
than
the
other
deserts
in
the
world.
Presentation
square
kilometer平方千米
in
size（面积、体积等）大小
面积
长、宽、高、深、面积的表达方法
The
river
is
20
meters
wide.
=
The
river
is
20
meters
in
width.
基数词
+
单位词
+
形容词（long,
wide,
high,
deep,in
size等）
基数词
+
单位词
+
in
+
名词（length,
width,
height,
depth,
size等）
【拓展延伸】作定语时用合成词“数词
-
单位词单数
–
形容词”。
This
20-meter-long
rope
isn’t
long
enough
to
help
climb
the
mountain.
总结
1.
1—12:
(记住每个单词)
2.
13—19:
-teen
(thir-,
fif-,
eigh-)
3.
20—90:
-ty
(twen-,
thir-,
for-,
fif-,
eigh-)
4.
21—99:
十位
_
个位
5.
100,
200,
...
900:
_______
hundred
6.
101—999:
_______
hundred
and
__
个位
十位
__
_
个位
7.
多位数:
______
billion
(十亿),
______
million
(百万),
_____
thousand,
______
hundred
and
个位
十位
__
_
个位
_
数字总结
The
Caspian
Sea
is
1,025
meters
deep
The
Nile
is
6,671
kilometers
long
Qomolangma
is
8,844.43
meters
high
The
Sahara
is
about
9,600,000
square
kilometers
in
size
How
to
read
large
numbers?
One
thousand
and
twenty-five
Six
thousand
and
seventy-one
six
hundred
Eight
thousand
and
forty-four
eight
hundred
point
four
three
Nine
million
and
six
hundred
thousand
8,844.43
读作：eight
thousand,
eight
hundred
and
forty-four,
point
four
three
1,025
读作：one
thousand
and
twenty-five
6,671
读作：six
thousand,
six
hundred
and
seventy-one
9,600,000
读作：nine
million,six
hundred
thousand
1.千位及千位以上数字的表达：以三位数为一个单位，每三位数用“，”隔开。
2.逗号读法:朗读时，将每三位数看做一个单位，依次为billion十亿，million百万，thousand千。每个单位按照百、十、个位向下读，其中百位到十位之间要加入
and。小数点读point。
101
110
122
143
1,000
10,000
1,000,000
100,000,000
1,000,000,000
one
hundred
and
one
one
hundred
and
ten
one
hundred
and
twenty-two
one
hundred
and
forty-three
one
thousand（千）
ten
thousand
（一万）
one
million(百万）
a
/one
hundred
million（一亿）
one
billion(十亿）
A
thousand
million.
百位到十位之间要加入
and。
8,742.33
2,463,128
1,370,000,000
2,000,030,000
eight
thousand,
seven
hundred
and
forty-two
point
four
three
two
million,
four
hundred
and
sixty-three
thousand,
one
hundred
and
twenty-eight
one
billion,
three
hundred
and
seventy
million
two
billion
and
thirty
thousand
小数点读point
百位到十位之间要加入
and。
Qomolangma
about
9,600,000
square
kilometers
in
size
The
Sahara
1,025
meters
deep
The
Caspian
Sea
6,671
kilometers
long
The
Nile
8,844.43
meters
high
Match
the
facts
you
know.
1a
Mountain
River
Sea/Lake
Desert
Feature
Most
Least
height
Fill
in
the
table.
highest/tallest
lowest/shortest
length
longest
shortest
depth
deepest
shallowest
area
biggest
smallest
Listen
and
complete
the
sentences.
1b
Qomolangma
is
_____________
than
any
other
mountain
in
the
world.
The
Sahara
is
_____________
desert
in
the
world.
The
Caspian
Sea
is
_______________
of
all
the
salt
lakes.
The
Nile
is
_________________
river
in
the
world.
higher
the
biggest
the
deepest
the
longest
n.
沙漠
Language
points
Qomolangma
is
higher
than
any
other
mountain
in
the
world.
(教材
P49
1b)
比较级
+
than
any
other
+
可数名词单数
Point
该结构意为“比其他任何一个……都……”，指同一范围内比较，表示最高级含义。
She
is
thinner
than
any
other
student
in
her
class.
=
She
is
the
thinnest
in
her
class.
other必不可少，用以将主语从比较对象中排除，避免逻辑矛盾。
【特别提醒】如果比较对象不在同一范围内或不属于同一类别，应用“形容词/副词比较级
+
than
any（任何的）
+
可数名词单数”。
The
Pacific
Ocean
is
larger
than
any
lake
in
the
world.
练一练
Hulunbuir
is
bigger
than
_____________
city
in
China.
Hulunbuir
is
bigger
than
_____________
city
in
Anhui.
any
other
any
Teacher：Yesterday,
we
learned
some
important
geographical
facts.
I
hope
you
all
still
remember
them.
I’m
going
to
test
you
now
by
asking
a
few
questions.
First,
what’s
the
highest
mountain
in
the
world?
Boy
1：Qomolangma!
It’s
higher
than
any
other
mountain
in
the
world.
Teacher：That’s
right.
And
who
can
tell
me
what
the
Sahara
is?
Girl
1：The
Sahara
is
the
biggest
desert
in
the
world.
地理事实
Listen
and
read.
Teacher：Very
good.
And
which
is
the
deepest
salt
lake
in
the
world?
Girl
2：The
Caspian
Sea
is
the
deepest
of
all
the
salt
lakes.
Teacher：You’re
all
so
smart!
Now,
for
the
last
question,
which
is
the
longest
river
in
the
world?
Boy
2：I
know!
The
Nile
is
the
longest
river
in
the
world.
Boy
1：And
the
Amazon
is
the
second
longest
river
in
the
world.
Teacher：It
seems
that
you
know
the
answers
to
all
my
questions.
Good
job!
“the+序数词+最高级+单数名词+in…”表示“是……中的第几……”
Practice
in
pairs:
A:
What
is
the
...
in
the
world?
B:
...
A:
How
...
is
it?
B:
It
is
...high/deep/in
size...
1,025
meters
deep
9,600,000
km?
in
size
8,844.43
meters
high
6,671
kilometers
long
Use
the
information
in
1b
to
make
conversations.
1c
Summary
1.How
to
read
large
numbers
2.长、宽、高、深的表达法
3.adj./adv.比较级和最高级的部分用法
谢谢
21世纪教育网（www.21cnjy.com)
中小学教育资源网站
有大把高质量资料？一线教师？一线教研员？
欢迎加入21世纪教育网教师合作团队！！月薪过万不是梦！！
详情请看：
https://www.21cnjy.com/help/help_extract.php
