中小学教育资源及组卷应用平台
外研版九年级英语上册
Module
9
达标测试卷
限时:
100分钟 满分:
120分
班级：
姓名：
考号：
.
第一卷 听力部分(25分)
一、听句子，选择最佳答语。(共5小题，每小题1分，共5分)
1.
A.
Yes,
it
is.
B.
Sure.
Here
it
is.
C.
It's
beautiful.
2.
A.
Yes,
you
are
right.
B.
Yes,
thanks
a
lot.
C.
That
's
all
right.
3.
A.
It
was
used
for
calling.
B.
It
was
invented
in
1876.
C.
Bell
invented
it.
4.
A.
I
hope
so.
B.
My
pleasure.
C.
Promise!
5.
A.
The
computer.
B.
It's
useful.
C.
Linda
is
clever.
二、
听对话，选择正确图片。(共5小题，每小题1分，共5分)
6.
What
invention
are
they
talking
about?
7.
What
does
Tony
think
is
the
most
helpful
invention?
8.
When
was
the
car
invented?
9.
What
is
the
drink
made
from?
10.
What
does
the
woman
speaker
do?
三、
听长对话，选择正确答案。(共5小题，每小题1分，共5分)
听第1段对话，完成第11、12小题。
11.
What
does
Ted
want
to
be
when
he
grows
up?
A.
A
computer
player.
B.
A
computer
shop
owner.
C.
A
computer
programmer.
12.
Where
will
Ted
work?
A.
In
his
father's
company.
B.
In
his
uncle's
company.
C.
In
his
own
company.
听第2段对话，完成第13至第15小题。
13.
What
is
the
machine
used
for?
A.
Washing
clothes.
B.
Making
noodles.
C.
Cleaning
the
floor.
14.
How
long
has
the
woman
had
the
machine?
A.
For
a
week.
B.
For
two
weeks.
C.
For
three
weeks.
15.
How
many
times
has
the
woman
used
the
machine?
A.
Once.
B.
Twice.
C.
Three
times.
四、听短文，选择正确答案。(共5小题，每小题1分，共5分)
16.
How
does
Tony
go
to
school?
A.
By
underground.
B.
On
foot.
C.
By
bus.
17.
What
time
does
Tony's
school
day
finish?
A.
At
2
o'clock.
B.
At
3
o'clock.
C.
At
4
o'clock.
18.
What
sports
does
Tony
play
in
summer?
A.
Football.
B.
Basketball.
C.
Tennis.
19.
What
does
Tony
do
in
his
favourite
class?
A.
He
learns
about
drama
and
the
theatre.
B.
He
learns
how
to
draw
and
paint.
C.
He
learns
how
to
use
the
computer.
20.
Where
do
students
visit
for
work
experience?
A.
Different
places
of
work.
B.
Offices
in
London.
C.
Schools
in
other
countries.
五、根据所听内容，填写正确的单词。(共5小题，每小题1分，共5分)
Maybe
your
schoolbag
is
too
heavy
to
carry,
and
it
troubles
you
a
lot
when
you
want
to
find
a
book
out
to
read.
Now
an
e?textbook
will
help
you.
It
is
said
that
e?textbooks
are
going
to
be
used
in
middle
schools.
It
is
much
21.
________
than
a
usual
schoolbag
and
easy
to
carry.
Though
it
is
as
22.
________
as
a
book,
it
can
hold
all
the
materials
for
study.
The
students
can
read
the
23.
________
page
by
page
on
the
screen,
take
notes
with
a
24.
________
pen,
or
even
hand
in
their
homework
to
their
teachers
by
sending
25.
____________.
All
they
have
to
do
is
to
press
a
button.
第二卷 笔试部分(95分)
六、单项选择。(共10小题，每小题1分，共10分)
26.
Paper
making
began
in
China
and
from
here
it
____
to
North
Africa
and
Europe.
A.
repeated
B.
created
C.
carried
D.
spread
27.
We
should
realize
that
everyone
has
his
or
her
own
merits(优点)and
defects(缺点),
so
we
must
treat
them
____.
A.
properly
B.
actually
C.
exactly
28.
My
shoe
heel(鞋跟)is
broken.
I
have
to
have
it
____.
A.
fixed
B.
bought
C.
invented
D.
made
29.
The
TV
show
Letters
Alive
brings
back
people's
____
of
writing
to
each
other.
A.
ideas
B.
hobbies
C.
styles
D.
memories
30.
Our
hometown
is
becoming
more
and
more
beautiful.
____
visitors
come
here
on
weekends.
A.
Hundred
B.
Hundreds
C.
Hundred
of
D.
Hundreds
of
31.
—Safety
is
the
most
important
in
our
daily
life.
—Of
course.
Everyone
____
the
everyday
safety
instructions.
A.
be
taught
B.
should
teach
C.
should
be
taught
D.
should
be
teaching
32.
John
didn't
listen
carefully
in
class.
________，
he
failed
in
the
test
yesterday.
A.
As
a
result
B.
In
a
way
C.
At
a
time
D.
At
times
33.
This
hole
is
so
small
that
only
one
person
can
pass
it
____.
A.
in
time
B.
on
time
C.
at
a
time
D.
for
a
time
34.
—Have
you
tasted
baozza,
a
mixture
of
pizza
and
baozi?
—Sure.
Thousands
of
baozza
____
at
a
baozi
factory
in
Yangzhou
each
day
next
month.
A.
will
make
B.
makes
C.
was
made
D.
will
be
made
35.
—Jimmy,
will
you
be
able
to
come
to
my
tea
party
tomorrow
afternoon?
—____.
If
my
mum
allows
me
to,
I'll
call
you.
A.
Perhaps
B.
Here
it
is
C.
Promise
D.
Sounds
great
七、完形填空。(共10小题，每小题1.
5分，共15分)
In
recent
years,
with
more
and
more
cars
on
the
road,
flying
robots
are
used
to
deliver
(递送)
mails.
Flying
robots
can
__36__
mails
to
people's
houses
without
having
to
deal
with
heavy
__37__.
But
they
will
spend
too
much
time
in
returning.
A
research
center
is
trying
to
improve
its
flying
robots
with
the
__38__
of
homing
pigeons(信鸽).
Homing
pigeons
are
pigeons
that
are
__39__
trained
to
fly
home
from
somewhere
else.
In
tests,
researchers
__40__
that
homing
pigeons
were
__41__
efficient
(高效的)
than
flying
robots
at
returning
to
their
home.
So
the
research
center
is
trying
to
use
a
flying
robot,
together
with
a
__42__，
to
deliver
mails.
After
the
robot
finishes
its
tasks,
it
can
__43__
the
pigeon
back
in
the
shortest
possible
time.
Although
it
will
cost
more
money
to
__44__
pigeons,
the
research
center
says
that
it
can
__45__
time.
And
the
time
it
saves
will
make
up
for
the
cost.
36.
A.
invite
B.
carry
C.
blow
D.
kick
37.
A.
traffic
B.
rain
C.
fire
D.
pollution
38.
A.
help
B.
luck
C.
treat
D.
interest
39.
A.
poorly
B.
carelessly
C.
specially
D.
musically
40.
A.
promised
B.
joked
C.
planned
D.
found
41.
A.
less
B.
more
C.
little
D.
much
42.
A.
homing
pigeon
B.
big
house
C.
leading
person
D.
heavy
car
43.
A.
train
B.
knock
C.
follow
D.
steal
44.
A.
dress
B.
paint
C.
clean
D.
raise
45.
A.
expect
B.
show
C.
kill
D.
save
八、阅读理解。(共10小题，每小题2分，共20分)
A
Inventions
usually
make
a
big
difference
to
people's
lives.
Do
you
have
any
great
inventions
at
home?
Do
they
help
you
a
lot
in
your
life
or
bring
you
much
fun?
Here
are
some
of
the
most
useful
inventions
in
families
according
to
a
survey.
The
most
helpful
and
creative
invention
for
kids
is
the
reading
pen.
With
the
specially?designed
pen,
kids
find
it
convenient
and
fun
to
learn.
Little
kids
can
learn
a
lot
including
story?telling,
poems
and
music.
They
start
learning
by
touching
the
contents
in
the
books
with
the
pen.
This
way
kids
can
learn
by
themselves.
They
are
also
great
helpers
for
primary
school
students
after
school.
Mopping
robots(扫地机器人)are
popular
with
people
who
are
too
busy
to
do
housework.
They
are
more
popular
with
office
ladies.
They
can
help
people
clean
dirt,
dust
and
hair
easily.
With
the
help
of
them,
people
don't
need
to
spend
much
time
on
housework.
They
can
enjoy
a
more
relaxing
life
after
work.
As
for
old
people,
an
electric
foot
basin(电动洗脚盆)
is
the
best
invention.
It's
a
good
choice
to
buy
one
for
your
grandparents.
It
can
help
keep
their
blood
pressure
normal
and
improve
blood
circulation(循环).
The
special
basin
can
keep
the
water
warm.
So
washing
feet
with
it
will
help
old
people
become
healthier
and
more
relaxed.
46.
It
is
____
for
kids
to
learn
with
the
reading
pen.
A.
boring
B.
convenient
C.
difficult
D.
impossible
47.
Mopping
robots
are
more
popular
with
____.
A.
kids
B.
office
ladies
C.
old
people
D.
young
men
48.
Old
people
can
keep
their
blood
pressure
normal
by
____.
A.
using
the
electric
foot
basin
B.
listening
to
music
with
the
reading
pen
C.
making
the
mopping
machine
work
D.
keeping
the
water
warm
B
The
biggest
secret
about
inventing
is
that
anybody
can
do
it!
Perhaps
this
sounds
crazy,
but
it's
true.
Maybe
you
have
the
wrong
idea
about
inventing,
so
read
on
to
discover
the
truth.
★Wrong
idea
No.
1:
An
invention
has
to
be
something
completely
new.
Inventing
means
creating
something
“new”，
but
the
idea
could
come
from
something
that
already
exists(存在).
The
Wright
Brothers,
for
example,
got
the
idea
for
building
a
“flying
machine”
from
watching
birds.
★Wrong
idea
No.
2:
Inventors
are
born,
not
made.
There
are
a
lot
of
factors(因素)
that
make
invention
possible.
Take
Mozart
for
an
example.
He
was
born
with
a
talent
for
musical
composition.
But
other
factors
were
also
important
for
his
creativity.
His
father
was
a
music
teacher,
and
Mozart
practiced
for
hours
every
day,
from
the
time
when
he
was
four
years
old.
Thomas
Edison
said
that
being
an
inventor
was
“99%
hard
work
and
1%
inspiration”！
Very
successful
creators
don't
give
up
when
they
get
something
wrong.
As
one
inventor
said,
“A
failure
is
the
right
answer
to
the
wrong
question.
”
★Wrong
idea
No.
3:
Inventors
are
always
old
people.
Don't
believe
that
you
can't
invent
something
when
you
are
young.
Here
are
two
examples
of
young
inventors:
Louis
Braille
went
blind
when
he
was
a
child.
When
he
was
fifteen,
he
invented
a
system
of
reading
and
writing
for
blind
people
that
is
still
used
in
most
countries
today.
As
a
young
man,
George
Nissen
was
watching
some
artists
performing
in
a
show.
He
watched
how
they
fell
into
the
safety
net
and
then
jumped
back
up
again.
This
gave
him
an
idea,
and
he
invented
the
trampoline.
49.
____
got
the
idea
for
building
a
“flying
machine”
from
watching
birds.
A.
Mozart
B.
George
Nissen
C.
Louis
Braille
D.
The
Wright
Brothers
50.
The
underlined
word
“talent”
means
“____”
in
Chinese.
A.
态度
B.
品质
C.
天赋
D.
能量
51.
Which
of
the
following
is
the
writer's
opinion?
A.
Anybody
can
do
inventing.
B.
Inventors
are
born,
not
made.
C.
Inventors
are
always
old
people.
D.
An
invention
has
to
be
something
completely
new.
C
Facial
recognition
technology
(人脸识别技术)
is
widely
used
today.
For
example,
police
use
it
to
search
for
bad
guys.
It's
also
used
to
unlock
phones
or
doors.
Now,
a
similar
technology,
known
as
facial
detection(探测),
is
entering
a
new
field:
the
business
of
advertising(广告).
Such
systems
are
going
through
tests
in
a
small
number
of
stores.
One
facial
detection
system
can
judge
a
person's
“happiness”
or
“fear”
level.
That
helps
businesses
see
how
people
feel
as
they
look
at
products
or
advertisements
in
the
store.
Another
system
can
detect
whether
someone
is
wearing
eyeglasses.
If
so，stores
can
send
advertisements
for
new
glasses
to
him.
Facial
detection
technology
is
also
placed
inside
some
large
advertising
boards.
Cameras
in
those
boards
can
detect
information
like
people's
ages
and
five
levels
of
feelings—from
“very
happy”
to
“very
unhappy”.
Supporters
of
the
technology
say
it
could
improve
buyers'
experience
by
showing
products
they
might
like
or
by
offering
them
products
at
lower
prices.
Some
are
against
the
idea
of
using
such
systems.
Pam
Dixon,
the
head
of
a
privacy(隐私)
group,
is
one
of
them.
She
thinks
__▲__.
For
example,
a
business
could
raise
the
price
of
a
product
according
to
a
person's
age
and
feelings.
However,
one
store
testing
the
technology
explained
they
wouldn't
store
people's
information
like
names
or
ages.
And
the
advertising
board
system
maker
said
it
didn't
keep
any
personal
information
or
record
any
videos.
52.
Facial
detection
technology
can
tell
people's
____，
according
to
the
passage.
A.
weight
B.
feelings
C.
height
D.
jobs
53.
Which
of
the
following
sentences
can
be
put
in
the
__▲__？
A.
nobody
likes
to
have
their
feelings
collected
B.
it
is
very
important
to
protect
people's
privacy
C.
the
strange
actions
may
cause
something
unfair
D.
businesses
may
use
them
to
have
more
customers
54.
We
can
infer
from
the
passage
that
facial
detection
technology
____.
A.
can
detect
buyers'
names
and
record
them
B.
is
put
inside
some
large
advertising
boards
C.
may
be
used
to
sell
cheaper
goods
in
all
stores
D.
may
need
some
time
before
being
widely
used
55.
The
best
title
of
the
passage
may
be
“____”.
A.
Facial
Recognition
Technology
Entering
a
New
Field
B.
Facial
Recognition
Technology
Looking
for
Bad
Guys
C.
Facial
Detection
Technology
Going
into
Advertising
Field
D.
Facial
Detection
Technology
Improving
Buyers'
Experience
九、任务型阅读。(共5小题，每小题2分，共10分)
As
we
all
know,
the
“rice
bowl”
culture
of
China
has
influenced
some
Asian
countries
such
as
Japan,
Korea
and
Vietnam
since
we
started
to
use
chopsticks
while
eating
food.
Chopsticks
are
usually
two
long
thin
pieces
of
wood
or
bamboo.
They
can
also
be
made
of
plastic,
animal
bone
or
metal.
(1)
The
most
important
thing
is
that
chopsticks
are
a
great
invention
in
China.
Five
thousand
years
ago
people
usually
cooked
their
food
in
large
pots,
using
twigs(小树枝)to
remove
it.
(2)
the
population
grew,
people
began
cutting
food
into
small
pieces.
(3)Food
in
small
pieces
could
be
eaten
easily
with
twigs
by
people.
And
twigs
were
gradually
changed
into
chopsticks.
Some
people
think
that
the
famous
scholar
Confucius
living
from
about
551
BC
to
479
BC
pushed
the
development
of
chopsticks.
Confucius
believed
that
using
chopsticks
instead
of
knives
would
remind
people
to
stay
away
from
killing
and
violence
at
table.
We
enjoy
our
delicious
food
with
our
family
members
or
friends
while
feeling
the
peaceful
and
people?loving
world
by
using
chopsticks
at
table
anytime.
56.
请将(1)处画线的句子译成中文:
________________________________________________________________________
57.
在(2)空处填入一个使语意连贯的连词:
________________________________________________________________________
58.
What
materials
can
be
used
to
make
chopsticks?
________________________________________________________________________
59.
请将(3)处被动语态的句子转化为主动语态的句子。
________________________________________________________________________
________________________________________________________________________
60.
What
is
a
possible
title
for
this
passage?
________________________________________________________________________
十、补全对话(有两项多余)。(共5小题，每小题1分，共5分)
A:
Hi,
Jack,
do
you
know
about
the
science
and
art
fair?
B:
No，I've
never
heard
of
it.
__61__
A:
On
February
11th.
B:
I
remember
the
great
inventor
Thomas
Edison
was
born
on
that
day.
A:
__62__
And
you
have
a
good
memory.
B:
Thank
you.
__63__
A:
Of
course.
There
have
been
a
lot
of
inventors
in
history.
They
made
thousands
of
inventions
and
some
of
them
changed
the
world.
B:
In
order
to
help
remember
these
inventors,
people
named
February
11th
for
National
Inventors'
Day,
right?
A:
You're
very
clever.
__64__
It
was
Ronald
Reagan,
the
president
of
the
USA
that
named
the
date.
B:
There
must
be
many
kinds
of
activities
all
over
the
world
on
that
day.
A:
I
agree.
__65__
B:
Sounds
interesting.
Can
I
have
a
look
on
that
day?
A:
Sure.
You
are
more
than
welcome
to.
A.
You're
right.
B.
Can
you
tell
me
how
it
got
started?C.
Our
school
also
celebrates
National
Inventors'Day.
D.
How
do
you
celebrate
it?E.
But
you
made
a
mistake.
F.
When
is
it?G.
You're
all
right.
61.
________ 62.
________ 63.
________
64.
________ 65.
________
十一、
单词拼写。(共5小题，每小题1分，共5分)
66.
You
can
find
the
writer's
name
on
the
first
p
(页)
of
the
book.
67.
Nobody
knew
how
to
deal
with
the
problem
which
__________(产生)
from
Tom's
mistake.
68.
I
couldn't
understand
a
s
(单个的)word
she
said.
69.
Jimmy
didn't
attend
the
meeting
because
he
had
a
large
__________(量)
of
work
to
do.
70.
It
is
said
that
books
may
be
r
(取代)
by
computers
one
day.
十二、短文填空。(共5小题，每小题2分，共10分)
Lonnie
Johnson
learned
how
to
use
tools
from
his
dad.
At
13,
Lonnie
put
an
old
engine
(发动机)
on
a
home?made
go?cart.
He
dreamed
of
being
71.
________
inventor.
In
high
school,
Lonnie
built
a
remote?control
robot
from
some
waste
things.
This
won
him
first
prize
at
the
Alabama
State
Science
Fair.
His
friends
called
72.
________“The
Little
Scientist”.
In
college,
Lonnie
was
an
excellent
student.
After
that,
he
73.
________
(become)
an
Air
Force
officer,
rocket
scientist
and
business
leader.
74.
________
he
never
stopped
inventing.
Today,
Dr.
Lonnie
Johnson
has
more
than
100
75.
________
(use)
inventions.
十三、书面表达。(20分)
目前“电子书包(electronic
schoolbags)”开始在一些学校试用。假如你班就“电子书包”的利弊展开了一次调查，下表是你们小组的情况。请根据表格内容写一篇英语短文，
发表在某英语论坛上。
要求:
1.
短文必须包括下列提示内容，
可适当发挥；
2.
词数80左右。短文开头已给出，
不计入总词数。
Names
Different
ideas
Lily
Not
heavy,
easy
to
carry;
get
information
easily.
Peter
Bad
for
eyes;
can't
replace
textbooks(课本).
Tina
Expensive
but
can
protect
the
environment.
You
？
In
some
schools,
students
begin
to
use
electronic
schoolbags
in
class.
Is
it
good
or
bad?
Here
are
my
group
members'
ideas
about
it.
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
参考答案
第一卷 听力部分
听力材料：
一、
1.
Jim,
can
I
borrow
your
camera?
2.
Were
potato
chips
invented
by
accident?
3.
When
was
the
telephone
invented?
4.
If
you
lend
your
computer
to
anyone,
tell
him
to
use
it
properly.
5.
What
do
you
think
is
the
most
useful
invention,
Linda?
二、
6.
M：Mary,
when
was
the
telephone
invented?
W：It
was
invented
in
1876.
7.
W：Tony,
what
do
you
think
is
the
most
helpful
invention?
M：I
think
the
most
helpful
invention
is
the
light
bulb.
8.
W：Peter,
do
you
know
when
the
car
was
invented?
M：It
was
invented
in
1885.
9.
W：The
drink
tastes
great.
What
is
it?
M：It's
watermelon
juice.
10.
M：What's
wrong
with
me?
W：Well,
nothing
serious.
Take
the
medicine
and
you'll
feel
better.
三、Text
1
W：What
are
you
going
to
be
when
you
grow
up,
Ted?
M：I'm
going
to
be
a
computer
programmer.
W：Why?
M：The
computer
is
getting
more
and
more
popular.
Every
family
will
have
one
in
the
future.
W：Where
will
you
work?
M：I'll
work
in
my
uncle's
company.
W：Whom
will
you
live
with?
M：I'll
live
with
my
parents.
You
know,
I'm
the
only
child
in
my
family.
W：What
should
you
do
now?
M：I
should
know
more
about
computers.
Text
2
W：Look!
I
have
a
new
machine.
M：Wow，it
looks
strange.
What
is
it
used
for?
W：It
is
used
for
making
noodles.
M：Where
did
you
buy
it?
W：I
bought
it
in
Taixin
Supermarket.
M：How
long
have
you
had
it?
W：For
only
a
week.
M：Do
you
know
where
it
was
made?
W：Let
me
have
a
look.
Oh，it
was
made
in
Shanghai.
M：Have
you
ever
used
it?
W：Yes.
I
have
already
used
it
three
times.
And
the
noodles
made
by
the
machine
are
delicious.
四、 M：My
name
is
Tony.
I'm
15
years
old.
Every
morning
I
get
up
at
half
past
six
and
catch
a
bus
to
my
school
just
outside
London.
The
school
day
begins
at
8
am
and
finishes
at
3
pm.
We
often
have
sports
in
the
morning,
which
means
playing
football
in
autumn
or
tennis
in
summer.
My
favourite
subject
is
Information
Technology,
because
in
the
class
we
learn
how
to
use
computers.
At
lunchtime
most
students
play
on
the
playground
and
eat
the
sandwiches
they
have
brought
from
home.
Next
week
we
will
go
on
work
experience.
Each
student
should
visit
a
different
place
of
work
to
learn
about
jobs.
This
will
help
think
about
what
we
want
to
do
in
the
future.
五、 Maybe
your
schoolbag
is
too
heavy
to
carry,
and
it
troubles
you
a
lot
when
you
want
to
find
a
book
out
to
read.
Now
an
e?textbook
will
help
you.
It
is
said
that
e?textbooks
are
going
to
be
used
in
middle
schools.
It
is
much
lighter
than
a
usual
schoolbag
and
easy
to
carry.
Though
it
is
as
small
as
a
book,
it
can
hold
all
the
materials
for
study.
The
students
can
read
the
text
page
by
page
on
the
screen,
take
notes
with
a
special
pen,
or
even
hand
in
their
homework
to
their
teachers
by
sending
e?mails.
All
they
have
to
do
is
to
press
a
button.
听力答案：
一、1～5：BABCA 二、6～10：CBAAB
三、11～15：CBBAC 四、16～20：CBCCA
五、21.
lighter 22.
small 23.
text 24.
special 25.
e?mails
第二卷 笔试部分
六、26.
D 27.
A
28.
A 点拨：have
sth.
done
使某事被做。
29.
D 30.
D
31～35：CACDA
七、36～40：BAACD
41～45：BACDD
八、(A)46～48：BBA
(B)49～51：DCA
(C)52～55：BCDC
九、56.
最重要的是筷子是中国的一项伟大发明。
57.
As
/
When/
After
58.
Wood,
bamboo,
plastic,
animal
bone
and
metal.
59.
People
could
eat
food
in
small
pieces
easily
with
twigs.
/People
could
easily
eat
food
in
small
pieces
with
twigs.
60.
Chopsticks
Culture/
Chopsticks/Culture
of
Chinese
Chopsticks
at
Table/
A
Great
Invention—Chopsticks
十、61～65：FABEC
十一、66.
page 67.
resulted 68.
single
69.
amount 70.
replaced
十二、71.
an 72.
him 73.
became
74.
But 75.
useful
十三、范文：
In
some
schools,
students
begin
to
use
electronic
schoolbags
in
class.
Is
it
good
or
bad?
Here
are
my
group
members'
ideas
about
it.
Lily
thinks
an
electronic
schoolbag
is
not
heavy
and
easy
to
carry.
We
can
get
information
easily.
And
it
also
makes
us
more
interested
in
lessons.
Peter
says
if
he
uses
it
all
day,
it
will
be
bad
for
his
eyes.
And
he
doesn't
think
it
can
replace
textbooks.
Tina
thinks
it
is
expensive
but
it
can
protect
the
environment
because
people
don't
need
to
cut
down
trees
to
make
paper
books.
In
my
opinion,
it's
easier
for
teachers
to
find
each
student's
problem
and
help
them.
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