中小学教育资源及组卷应用平台
Unit
7
Lesson
38
The
world
is
a
big
place!
同步练习
一.
单选题.
1.
There
were
________
of
people
in
the
world
in
2010.
A.
billion
B.
billions
C.
seven
billion
D.
seven
billions
2.
_______
of
the
earth’s
surface
is
water.
A.
One
third
B.
One
thirds
C.
Two
third
D.
Two
thirds
3、
the
time
I
got
to
the
bus
stop
,
the
bus
had
already
left
.
A、On
B、In
C、By
D、With
4、The
number
of
the
laptops
increased
5
million
this
year
.
A、by
B、in
C、of
D、to
5、The
well
is
with
a
.
A、cover
;
cover
B、covered
;
cover
C、covers
;
covered
D、covers
;
covers
6、
of
the
students
in
our
school
girls
.
A、
Two
three
;
are
B、Two
thirds
;
is
C、Two
thirds
;
are
D、Two
three
;
is
二.
英汉短语互译
1．三分之一_______________________________________
2．被……覆盖______________________________________
3．all
year
round_____________________________________
4．two
thirds________________________________________
5．in
the
future______________________________________
三.
用所给词的适当形式填空。
1.
These
dry
places
_____
(call)deserts.
2.
Antarctica
_______
(cover)
with
snow
and
ice
all
year
round.
3.
It
must
_______
(treat)
well
for
our
children
and
for
our
children’s
children,
too!
4.
We
_____
(ask)
to
write
a
report
on
Asia
already.
5.
It
____________
(write)
like
the
letter
“A”
by
the
boy
just
now.
6.
Two
______
(three)
of
the
earth
surface
is
oceans.
7.
The
earth
is
a
special
one
of
all
the
______
(planet).
四.
选词并用其正确形式填空.
完成短文。
in
total;
on
the
earth;
in
the
future;
be
covered
with
;
be
treated
well
Once
the
world
__________________
green
plants
and
the
living
things
led
a
peaceful
life
_____________.
However,
later
some
animals
______________________
and
was
even
killed
for
money.
There
are
not
many
____________.
Luckily,
people
are
trying
to
save
the
animals
in
danger
now.
We
all
hope
that
all
the
living
things
will
live
a
pleasant
life
as
before
______________.
同步练习答案
一.
1-6.
C
D
C
D
B
C
二.
1.
two
third
2.
be
covered
with
3.
全年，一年到头
4.
三分之二
5.
在将来
三.
1.
are
called
2.
is
covered
3.
be
treated
4.
have
been
asked
5.
was
written
6.thirds
7.
planets
四.
1.
was
covered
with
2.
on
the
earth
3.
were
not
treated
well
4.
in
total
5.
in
the
future
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八年级下
Unit
7
Lesson
38
The
world
is
a
big
place.
Warming-up:
Let’s
enjoy
a
video:
What
do
you
know
about
eart
Presentation:
The
earth
is
a
planet.
One
third
of
the
planet
is
land.
行星
三分之一
Parts
of
this
land
are
very
dry.
They
are
called
deserts.
沙漠
What
do
you
know
about
eart
Presentation:
Oceans
cover
two
thirds
of
the
earth’s
surface.
land
oceans
三分之二
表面，表层
Africa
Asia
Europe
Oceania
Antarctica
There
are
seven
continents
on
the
earth:
North
America
South
America
Antarctica
is
covered
with
snow
and
ice
all
year
round.
But
there
are
green
forests,
fresh
water
and
rich
lands
on
the
other
six
continents.
被…覆盖
全年，一整年
Asia
Africa
North
America
South
America
Antarctia
Europe
Australia
Which
continent
is
the
largest
one/
the
second
largest
one/
third
largest
one/
...
The
Pacific
Ocean
The
Indian
Ocean
The
Atlantic
Ocean
The
Arctic
Ocean
Oceans
cover
two
thirds
of
the
earth’s
surface.
The
earth
has
only
one
big
ocean,
but
we
use
these
names
for
its
different
parts:
adj.
印度的
n.
印度人
n&adj.
大西洋（的）
adj.
北极的
Talk
about
the
earth
with
your
partner:
Pair
work:
1.
How
many
continents
are
there
in
the
world
What
are
they
2.
What
are
the
four
main
oceans
in
the
earth
3.
What
do
you
know
about
the
place
where
you
live
Presentation:
But
now
the
earth
faces
a
big
problem.
In
the
year
2010,
the
world’s
population
was
over
7
billion
in
total.
It
is
increasing
very
quickly.
By
2025,
the
world
may
have
about
8
billion
people.
And
by
2050,
the
world’s
population
may
reach
9
billion.
billion
十亿
increase
增加
in
total
总计，总共
Think
about
it:
Presentation:
The
increasing
population
causes
many
other
problems,
what
are
they
Listen
to
the
lesson
and
answer
the
question:
Listening:
1.When
was
the
world’s
population
over
7
billion
in
total
In
the
year
2010.
2.When
will
the
world
have
about
8
billion
people
By
2025.
3.When
may
the
world’s
population
reach
9
billion
By
2050.
4.How
many
continents
does
the
world
have
what
are
they
There
are
seven
continents.
5.How
many
oceans
does
the
world
have
what
are
they
There
are
four
main
oceans.
Reading!
Read
the
lesson
and
match
each
paragraph
with
its
main
idea.
Paragraph1
a.
Six
of
the
seven
continents
are
good
for
people
to
live
on.
Paragraph2
b.
We
should
treat
the
earth
well.
Paragraph3
c.
An
increasing
population
is
a
big
problem
for
the
earth.
Paragraph4
d.
Two
thirds
of
the
earth
is
covered
with
oceans.
Paragraph5
e.
People
cannot
live
everywhere
on
the
earth.
What
is
the
problem
the
earth
faces
Can
people
live
on
the
seven
continents
3.How
much
of
the
world
is
covered
with
land
4.How
many
oceans
are
there
in
the
world
What
are
they
5.
What
is
largest
part
of
the
ocean
The
population
is
increasing
very
quickly.
No,
they
can’t.
One
third.
Reading!
Read
the
lesson
again
and
answer
the
questions.
Four.
The
Pacific
Ocean,
the
Indian
Ocean,
The
Atlantic
Ocean,
an
the
Arctic
Ocean.
The
Pacific
Ocean.
Reading:
Read
the
lesson
again
and
repeat.
The
earth
is
a
very
special
planet,
and
it
faces
a
big
problem.
In
the
year
2010,
the
world’s
population
was
over
7
billion
in
total.
It
is
increasing
very
quickly.
By
2025,
the
world
may
have
about
8
billion
people.
And
by
2050,
the
world’s
population
may
reach
9
billion.
There
is
another
problem.
People
can’t
live
everywhere
on
the
earth.
We
can’t
live
in
water,
and
only
about
one
third
of
our
planet
is
land.
But
parts
of
this
land
are
very
dry.
These
dry
places
are
called
deserts.
Some
areas
have
very
high
mountains.
Others
have
a
lot
of
snow
and
ice.
It
is
not
easy
to
live
in
those
places.
Reading:
Read
the
lesson
again
and
repeat.
There
are
seven
continents:
Asia,
Africa,
Australia,
Antarctica,
Europe,
North
America
and
South
America.
Antarctica
is
covered
with
snow
and
ice
all
year
round.
Luckily,
people
can
live
on
the
other
six
continents.
On
these
continents,
there
are
green
forests,
fresh
water
and
rich
lands.
Oceans
cover
two
thirds
of
the
earth’s
surface.
The
earth
has
only
one
big
ocean,
but
we
use
these
names
for
its
different
parts:
the
Pacific
Ocean,
the
Indian
Ocean,
the
Atlantic
Ocean
and
the
Arctic
Ocean.
The
Pacific
Ocean
is
the
largest
one.
The
earth
is
our
home
now,
and
it
will
be
our
home
in
the
future.
It
must
be
treated
well
for
our
children
and
for
our
children’s
children,
too!
Language
points:
Grammar:
年份的读法：一般情况把表示年份的四位数字按前后分为两组，每一组的数字用基数词来读。
2010读作：twenty
ten
2025读作：twenty
twenty-five
2050读作：twenty
fifty
by
2025
by:
到……之前；不迟于
hundred,
thousand,
million,
billion这些都是英语的计数单位与具体数字连用不加S，除非短语hundreds
of,
thousands
of,
millions
of;billions
of
Language
points:
Grammar:
1.
in
total
=
in
all
合计;
总计
the
total
of
大量;
许多
(谓单)
a
total
of
+可数名词复数
(谓常用复)
强化:
Over
1,000
people
attended
the
meeting
in
total.
A
total
of
twenty
letters______
received
last
month.
上月共收到20
封信
were
Language
points:
Grammar:
2.
increase
增加;增大;增长;
增强
increase
by
+倍数/
百分数
“增加了…倍/百分之…”
increase
to
+具体数字
“增加到…”
强化:
The
company
has
_________
the
price
of
its
cars.
公司提高了汽车的价格.
The
number
of
the
laptop______________
25%
last
year.
The
population
has
____________(from
300,000)
_____
70,000.000.
increased
increased
by
increased
to
Language
points:
Grammar:
By
2025,
the
world
may
have
about
8
billion
people.
by
+
将来时间
(用将来时)
by
+
过去时间
(用过去完成时)
强化:
_____
you
finish
doing
the
work
by
next
Sunday
We
______________(learn)
1500
hundred
new
words
by
2013.
Will
had
learned
Language
points:
Grammar:
4.
基本分数表达:
(1)基数/序数(基为子,序为母)
如:1/5
one
fifth
1/9
one
ninth
(2)分子>
1,
分母用复数
如:
2/5
two
fifths
7/9
seven
ninths
特殊分数表达:
half
一半
quarter
四分之一
如:1/2
one
half
1/4
a
quarter
3/4
three
quarters
强化:
__________(四分之一)of
us
have
left
our
pictures
home.
________
(一半)
of
us
are
from
North
China.
注:
分数+
of
+
可数名词复数
(谓复)
分数+
of
+
不可数名词
(谓单)
强化:
___________
(三分之二)of
information
is
true.
_____________(五分之三)
of
the
students
_____
girls
in
our
school.
A
quarter
A
half
Two
thirds
Three
fifths
are
Language
points:
Grammar:
5.
Antarctica
is
covered
with
snow
and
ice
all
year
round.
南极洲常年被冰雪覆盖。
all
year
round
一年到头
be
covered
with…
被……覆盖
被动语态由“助动词be+及物动词的过去分词”构成。（be有人称和数的变化）
eg:
The
field
__
so
many
beautiful
flowers.
田野被许多美丽的花儿所覆盖。
is
covered
with
Passive
Voice
（被动语态）：
语态：表示主语和谓语动词之间的关系。
英语有两种语态，即主动语态和被动语态。
主动语态：表示主语是动作的执行者。被动语态：表示主语是动作的承受者。
如：
Many
students
study
English.(主动语态)
English
is
studied
by
many
students.
(被动语态)
语态
Grammar:
被动语态:
Grammar:
被动语态结构：
被动语态由“助动词be+及物动词的过去分词”构成。（be有人称和数的变化）,
注意不同时态的不同形式。
eg:
The
classroom
is
cleaned
by
us
every
day.
The
trees
were
planted
by
the
students
last
year.
The
olds
should
be
taken
good
care
of.
by
many
students.
1.Many
students
study
English.
English
is
studied
2.They
made
shoes
in
that
factory.
Shoes
were
made
by
them
in
that
factory.
将主动语态变为被动语态方法:
原宾语变主语，动词变为be+动词过去分词，
原主语由by连接。
1.
They
will
play
football
on
this
Sunday.
2.
Lucy
did
the
homework
in
the
evening.
3.
They
often
use
computers
in
class.
4.
We
have
made
these
machines
in
Beijing
before.
Football
will
be
played
by
them
on
this
Sunday.
The
homework
was
done
by
Lucy
in
the
evening.
Computers
are
often
used
by
them
in
class.
These
machines
have
been
made
(by
us)
in
Beijing.
Exercise:
将下列句子由主动语态变为被动语态
2.含有情态动词的被动语态结构：
can/may/must/should
+
be+过去分词
1.Amy
can
take
good
care
of
Gina
．
by
Amy.
Gina
can
be
taken
good
care
of
2.You
should
drink
more
water.
More
water
should
be
drunk
by
you.
Language
points:
Grammar:
Exercise:
1.
The
trees
must
three
times
a
week.
A.
water
B.
is
watering
C.
be
watered
D.
waters
2.
A
lot
of
trees
along
the
river
last
year.
A.
planted
B.
are
planted
C.
are
planting
D.
were
planted
面对一个大问题
总和
迅速增长
世界人口
---的三分之一
地球表面的
三分之二
被称为
被覆盖
用---于---
被好好的对待
在其他六个大洲上
face
a
big
problem
in
total
increase
very
quickly
the
world’s
population
one
third
of
-----
two
thirds
of
the
earth’s
surface
be
called
---
be
covered
with
----
use
---
for
被用于
be
used
for
be
treated
well
on
the
other
six
continents
Key
phrases
we
learn
today:
1．The
number
of
swimmers
here
is
__________
quickly
because
it’s
very
hot
these
days.
2．The
school
has
a
________
of
900
students.
3．I
think
it
may
be
the
________
season
of
the
year.
4．The
________
of
our
body
is
skin.
It
protects
us.
5．How
many
________
of
people
are
there
in
the
world
now
Fill
in
the
blanks
with
the
correct
forms
of
the
words
in
the
box.
increase
dry
surface
billion
total
increasing
total
driest
surface
billions
Let’s
Do
It!
2
Let’s
Do
It!
3
Match
the
seven
continents
with
their
correct
descriptions.
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