Unit 6 The Earth’s Atmosphere 练习（含答案）

本资料来自于资源最齐全的２１世纪教育网www.21cnjy.com
Unit
6
The
Earth’s
Atmosphere
同步练习
Ⅰ.
根据句意和首字母提示补全单词：
1.
What
is
the
atmosphere
up
of
2.
Is
the
air
around
us
or
dirty
3.
The
kite
is
probably
made
of
,
it
is
very
beautiful.
4.
—Thank
you
for
your
dictionary.
—With
my
p
.
5.
The
atmosphere
s
the
earth
like
a
blanket.
6.
We
have
to
i
the
air
quality.
7.
There
was
a
shortage
of
o
at
the
top
of
the
mountain.
8.
Secondhand
smoking
can
also
c
lung
cancer.
9.
The
poisonous
gases
can
have
bad
e
on
our
health.
10.
The
cars
in
big
cities
are
used
for
b
and
pleasure.

Ⅱ.
用所给单词的适当形式填空：
1.
Nancy
found
a
book
(lie)
on
the
ground
on
her
way
to
school
this
morning.21教育网
2.
Lucy
is
good
at
(sing).
3.
(watch)
TV
too
much
is
bad
for
our
eyes.
4.
He
works
hard
(improve)
his
English.
5.
Our
classroom
(clean)
every
day.
6.
Homework
(must
hand)
in
before
class.
7.
Next
week
we
are
going
to
go
hiking
instead
of
(climb)
the
mountains.21·cn·jy·com
8.
You’re
so
tired,
please
stop
(have)
a
rest
at
once.
9.
She
is
ill.
So
she’d
better
(stay)
in
bed
for
a
few
days.
10.
People
who
travel
to
the
mountains
find
it
harder
to
.

Ⅲ.
根据中文提示完成下列各句：
1.
民警们必须保护孩子们，使他们免于危险。
The
policemen
.
2.
学校足球队是由25个学生组成的。
The
school
football
team
25
students.
3.
动物和植物依靠氮气来生存。
Animals
and
plants
nitrogen
to
stay
alive.
4.
这张课桌是由木头制成的。
This
desk
wood.
It
is
not
heavy.
5.
整个街道都是车，我们无法前进。
The
whole
street
cars.
We
can’t
move.
6.
河流应该被清理干净，对鱼有好处。
The
river
.
It
is
good
for
fish.
7.
浪费的问题应该马上解决。
The
problem
of
waste
at
once.
8.
你一定要自己做作业，不要靠别人。
You
have
to
do
your
homework.
others.
9.
我们都知道纸是用木头制成的。
We
all
know
paper
wood.
10.
没有空气和水，在月球上生活是很困难的。
on
the
moon
without
air
or
water.21世纪教育网版权所有

Ⅳ.
单项选择：
1.
The
black
suitcase
costs
more
because
it
leather.
A.
makes
of
B.
made
of
C.
is
made
of
D.
is
making
of
2.
—What
should
we
do
first
if
we
want
to
develop
our
village
—A
lot
of
new
roads
,
I
think.
A.
must
be
built
B.
have
to
build
C.
must
build
D.
have
built
3.
The
students
thought
English
is
too
difficult,
so
some
advice
them
by
us
in
this
school.【来源：21·世纪·教育·网】
A.
were
given
B.
were
given
to
C.
was
given
D.
was
given
to
4.
Two
more
teachers
to
Canada
for
learning
English
this
year.21·世纪
教育网
A.
are
sent
B.
were
sent
C.
have
sent
D.
will
be
sent
5.
These
erasers
are
made
rubber.
A.
of
B.
from
C.
in
D.
by
6.
Attention,
please!
All
the
mobile
phones
during
the
meeting.
A.
must
keep
off
B.
have
kept
off
C.
are
keeping
off
D.
must
be
kept
off
7.
More
than
of
the
girls
are
from
the
countries.
A.
three
fourth
B.
threes
fourth
C.
three-fourth
D.
three-fourths
8.
Her
words
made
me
.
A
happily
B.
angrily
C.
crying
D.
angry
9.
The
air
in
the
atmosphere
dust
and
gases.
A.
is
made
up
of
B.
is
make
up
of
C.
make
up
of
D.
made
up
of
10.
A
lot
of
old
things
in
the
History
Museum
next
week.
A.
will
be
shown
B.
can
show
C.
shows
D.
can
showed
11.
He
his
hometown
since
he
was
ten.
A.
left
B.
has
left
C.
leaves
D.
has
been
away
from
12.
I
think
it
is
easy
a
banana
salad.
A.
make
B.
to
make
C.
making
D.
to
making
13.
Lucy
enjoys
books
after
school,
she
knows
a
lot.
A.
seeing
B.
to
see
C.
reading
D.
to
read
14.
There
a
relay
race
next
week.
A.
has
B.
will
have
C.
is
D.
will
be
15.
The
education
in
China
has
developed
these
days.
A.
quick
B.
high
C.
highly
D.
widely

Ⅴ.
完形填空：
Linda
and
David
have
traveled
1
air
from
London
to
Sydney,
Australia.
Linda
has
promised
(答应)
her
mother
that
she
will
ring
her
to
let
her
know
that
they
have
arrived
2
.
This
is
something
she
had
done
ever
3
she
was
a
child.
David
thinks
it
is
not
a
good
4
to
ring
so
far,
to
spend
too
much,
and
to
say
so
5
.
“If
there
were
an
accident,”
he
says,
“they’d
know
soon
enough.
Bad
news
6
fast.”
But
Linda
has
promised
that
she
would
ring.
“However,”
she
says,
“it
doesn’t
7
much
when
you
just
think
that
it’s
the
other
side
of
the
world.
It’s
only
six
pence
per
second
(每秒六便士).”【出处：21教育名师】
“If
you’re
on
that
telephone
for
8
one
minute,
I’ll
eat
my
hat,”
David
says,
“And
one
minute’s
nearly
four
pounds
(英镑).”
“That’s
no
more
than
you’d
pay
for
a
new
hat,”
Linda
answers.
She
has
asked
the
man
at
the
hotel
(旅馆)
desk
to
get
her
the
number.
The
telephone
rings.
Linda
picks
it
up.
“Hello,
Mum.
Is
that
you ”
She
says.
“Six
pence
per
second,”
David
reminds
(提醒)
her.【版权所有：21教育】
“Hello,
love.”
It
is
Mrs
Lee,
9
mother,
speaking
from
London.
“I
can
hear
you
very
clearly
just
10
you
are
in
the
next
room.
It’s
a
better
line
than
when
you
called
me
11
your
office.
Do
you
remember
I
shouted
at
that
time,
and
still
you
couldn’t
hear
me
sometimes.”www-2-1-cnjy-com
“Yes,
Mum.”
Linda
puts
in.
“I
just
wanted
to
ring
to...”
“I
remember
12
you
rang
when
you
went
to
Betty’s
house
to
eat,
when
you
were
a
little
girl.
And
then
when
you...”
Mrs
Lee
is
a
great
talker.
“Nearly
four
pounds.”
says
David.
Linda
tries
to
tell
her
mother
that
it
is
time
to
say
goodbye.
“Yes,
all
right,”
says
Mrs
Lee,
“But
you
will
write,
13
you,
as
you
did
when
you
were
at
work...”21教育名师原创作品
Once
14
,
Mrs
Lee
talks
about
the
pass
and
there
is
no
stopping
her.
“Four
pounds
fifty,”
says
David.21
cnjy
com
15
,
Linda
cuts
her
mother
short,
promises
to
write,
and
rings
off.
“There!
That
wasn’t
long,
was
it ”
“Four
pounds,
ninety
pence.”
David
answers.
“And
you
didn’t
even
say
that
we’ve
arrived.”
(
)
1.
A.
for
B.
on
C.
at
D.
by
(
)
2.
A.
safe
B.
safely
C.
danger
D.
dangerous
(
)
3.
A.
since
B.
for
C.
then
D.
after
(
)
4.
A.
thought
B.
idea
C.
ways
D.
matter
(
)
5.
A.
a
little
B.
few
C.
little
D.
a
few
(
)
6.
A.
flying
B.
to
travel
C.
travels
D.
to
fly
(
)
7.
A.
cost
B.
spend
C.
pay
D.
take
(
)
8.
A.
more
B.
less
C.
more
than
D.
less
than
(
)
9.
A.
Linda’s
B.
David’s
C.
your
D.
his
(
)
10.
A.
as
B.
like
C.
so
D.
for
(
)
11.
A.
at
B.
from
C.
beside
D.
on
(
)
12.
A.
where
B.
how
C.
what
D.
why
(
)
13.
A.
isn’t
B.
won’t
C.
don’t
D.
aren’t
(
)
14.
A.
more
B.
another
C.
again
D.
less
(
)
15.
A.
At
last
B.
End
C.
Final
D.
Last

Ⅵ.
阅读理解
A
This
is
a
talk
by
a
London
taxi(出租车)driver.
“I’ve
been
a
taxi
driver
for
nearly
ten
years.
Most
London
taxi
drivers
have
their
own
taxis.”2-1-c-n-j-y
“It’s
a
nice
job
most
of
time.
you
meet
a
lot
of
people.
I
always
work
at
night,
because
there
is
too
much
traffic
during
the
day.
I
live
twenty
miles(英里)outside
London
and
I
go
to
work
at
5:30
in
the
afternoon.”
“I
usually
go
home
between
2
and
3
in
the
morning.”
“Some
very
strange
things
happened
late
at
night
.The
other
day
I
was
taking
a
woman
home
from
a
party
.She
had
her
little
dog
with
her.
When
we
got
to
her
house,
she
found
that
she
had
lost
her
key.
So
I
waited
in
the
car
with
the
dog
while
she
climbed
in
through
the
windows.”
“I
waited
and
waited.
After
half
an
hour
of
ringing
the
bell
I
decided
to
find
out
what
was
going
on
.I
tied
the
dog
to
a
tree
and
started
to
climb
in
through
the
window.
The
next
thing
I
knew
was
that
the
police
came.
They
thought
I
was
a
thief(小偷).
Luckily
the
woman
came
downstairs(下楼).She
must
have
gone
to
sleep
and
forgotten
about
me
and
the
dog!”
(217)
1.
The
driver
always
worked
at
night
because
it
was
easier
to
_____.
A.
drive
B.
make
money
C.
climb
in
through
the
window
D.
meet
a
lot
of
people
2.
The
woman
climbed
in
through
the
window
because
_____.
A.
she
wanted
to
have
a
sleep
B.
her
husband
didn’t
open
the
door
for
her
C.
she
didn’t
want
to
pay
the
driver
D.
she
couldn’t
find
her
key
3.
The
story
happened
_____.
A.
early
in
the
morning
B.
late
at
night
C.
20
miles
outside
London
D.
near
the
police
station
4.
Which
of
the
following
is
wrong
A.
The
driver
worked
until
between
2
and
3
in
the
morning.
B.
The
police
made
a
mistake.
C.
The
woman
had
no
money
to
pay
the
driver.
D.
The
woman
had
forgotten
about
the
driver
and
the
dog.
5.
The
driver
climbed
in
through
the
window
to
.
A.
get
money
from
the
woman
B.
return
the
dog
to
the
woman
C.
see
what
was
happening
in
the
house
D.
phone
the
police

B
There
are
fifty
states
in
the
United
States.
The
largest
in
population
is
California,
the
largest
in
area
is
Alaska.
Alaska
is
the
smallest
in
population
and
Rhode
Island
is
the
smallest
in
size.
The
oldest
states
are
the
ones
along
the
Atlantic
coast.
The
newest
states
are
Alaska
and
Hawaii.
Alaska
is
also
the
coldest
state.
California
and
Florida
are
the
warmer.
Henry
and
his
family
live
in
Seattle,
a
big
city,
on
the
Pacific
coast.
But
Los
Angeles
and
San
Francisco,
also
on
the
Pacific
coast,
are
larger
than
Seattle.
Henry’s
cousin,
Susan,
lives
in
New
York.
It
is
the
largest
city
in
the
United
States.
Thousands
of
people
visit
New
York
each
year.
The
most
important
city
in
the
United
States
is
Washington,
D.
C.
It
is
the
capital,
but
it
is
much
smaller
than
New
York.
(140)
1.
How
many
states
are
there
in
the
U.
S.
A.

A.
Five
B.
Forty-
Five.
C.
Fifty
D.
Fifteen.
2.
Which
state
is
the
largest
in
population
A.
California.
B.
Rhode-Island.
C.
Alaska
D.
Los
Angeles.
3.
Which
state
is
the
oldest,
the
newest,
and
the
smallest
in
population
A.
Rhode
Island.
B.
Seattle.
C.
San
Francisco.
D.
Alaska.
4.
Which
of
the
following
is
true
A.
The
oldest
states
are
the
ones
along
the
Pacific
coast.
B.
Washington
is
the
most
important
and
the
largest
city.
C.
New
York
is
the
largest
city
in
the
United
States.
D.
Henry’s
cousin
lives
in
the
Seattle.
5.
Why
is
Washington
D.
C.
the
most
important
American
city
Because
_________.
【来源：21cnj
y.co
m】
A.
it
is
the
largest
city
B.
it
is
the
largest
in
population
C.
it
is
the
most
beautiful
city
D.
it
is
the
capital
of
the
United
States

C
Mrs
Black
lives
in
a
small
village.
Her
husband
is
dead.
Her
son,
Jack,
lived
with
her.
He
worked
in
a
shop
in
the
village,
but
then
he
found
a
job
in
town
named
Greensea.
He
went
to
live
there.
Mrs
Black
was
very
angry.
She
got
on
a
train
and
went
to
see
her
son.
Then
she
said
to
him,
“Jack,
why
do
you
never
telephone
me ”
www.21-cn-jy.com
Jack
laughed,
“But,
mother,
you
haven’t
got
a
telephone.”
“No.”
she
answered,
“I
haven’t,
but
you
have
got
one.”
(88)
1.
The
old
Black
______.
A.
is
dead
B.
lives
with
his
wife
C.
went
to
a
small
village
D.
worked
in
a
shop
2.
Jack
lived
with
his
mother
______he
worked
in
the
village.
A.
before
B.
when
C.
after
D.
so
3.
Greensea
is
_________.
A.
a
big
city
B.
a
small
village
C.
a
town
D.
a
man’s
name
4.
Jack
didn’t
phone
his
mother
because
______.
A.
he
had
no
phone
B.
he
was
very
busy
C.
his
mother
had
no
phone
D.
he
went
home
every
day
5.
Jack’s
mother
was
very
angry
because
______.
A.
Jack
didn’t
want
to
ring
her
up
B.
Jack
had
a
telephone
but
she
hadn’t
C.
she
didn’t
know
how
to
make
a
telephone
D.
she
didn’t
know
she
couldn’t
be
called







【试题答案】
Ⅰ.
1.
made
2.
fresh
3.
plastic
4.
pleasure
5.
surrounds
6.
improve
7.
oxygen21cnjy.com
8.
cause
9.
effects
10.
business

Ⅱ.
1
lying
2.
singing
3.
Watching
4.
to
improve
5.
is
cleaned
6.
must
be
handed
7.
climbing
8.
to
have
9.
stay
10.
breathe

Ⅲ.
1.
must
protect
the
children
from
danger
2.
is
made
up
of
3.
depend
on
4.
is
made
of
5.
is
full
of
6.
should
be
cleaned
up2·1·c·n·j·y
7.
should
be
solved
8.
Don’t
depend
on
9.
is
made
from
10.
It
is
very
difficult
to
live21
cnjy
com

Ⅳ.
1.
C
2.
A
3.
D
4.
D
5.
A
6.
D
7.
D
8.
D
9.
B
10.
A
11.
D
12.
B
13.
C
14.
D
15.
C

Ⅴ.
1.
D
2.
B
3.
A
4.
B
5.
C
6.
C
7.
A
8.
D
9.
A
10.
B
11.
B
12.
B
13.
B
14.
C
15.
A

Ⅵ.
A:
1.
A
2.
D
3.
B
4.
C
5.
C
B:
1.
C
2.
A
3.
D
4.
C
5.
D
C:
1.
A
2.
B
3.
C
4.
C
5.
D
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