Unit3 Safety单元综合测试题及答案(含听力mp3)

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名称 Unit3 Safety单元综合测试题及答案(含听力mp3)
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Unit3
Safety
单元综合测试题
一、听力(听力)(共20小题;共20分)
Ⅰ.听对话,选择与对话内容相符的图片。每段对话读两遍。
(5分)
Ⅱ.听句子,选择正确的答语。每个句子读一遍。
(5分)
6.
A.
She
is
a
nice
girl.
B.
I'm
sorry
to
hear
that.
C.
What
a
pity!
7.
A.
Thank
you.
B.
I
don't
like
them
at
all.
C.
Coffee,please.
8.
A.
That's
all
right.
B.
That's
wrong.
C.
You
are
welcome.
9.
A.
Yes,I'd
love
to.
B.
I
don't
mind.
C.
I
feel
terrible.
10.
A.
Red
roses.
B.
Sounds
good.
C.
I
like
white.
Ⅲ.听短文及问题,选择正确答案。短文及问题读两遍。
(5分)
11.
A.
Ann.
B.
Mary.
C.
His
sister.
12.
A.
One.
B.
Two.
C.
Three.
13.
A.
The
boy.
B.
The
girl.
C.
Ann.
14.
A.
She
liked
good
looking.
B.
She
liked
her
mother.
C.
She
was
beautiful.
15.
A.
Their
mother
loved
the
girl.
B.
It
is
better
to
be
good
than
to
be
just
good-looking.
C.
Their
mother
was
not
kind
to
them.
Ⅳ.听短文,完成表格信息。短文读两遍。(5分)
The
Voice
of
the
School
(校园之声)
What
time
It's
16.

o'clock
now.
It's
time
for
you
to
have
a
break.
What
Music
can
help
you
forget
all
the
17.
.
How
You
and
your
classmates
must
be
very
18.

to
hear
your
favorite
music.
What
kind
Western
classical(经典的)
music
makes
people
feel
richer
and
19.

music
makes
people
do
things
faster.
Who
Most
of
the
middle
school
20.

like
pop
music
best.
16.

17.

18.

19.

20.

二、单项选择(共15小题;共15分)
21.
The
driver
didn't
stop
his
car
,
so
it
hit
the
tree.
A.
in
time
B.
at
times
C.
on
time
D.
all
the
time
22.
The
Great
Wall
is

famous

lots
of
visitors
all
over
the
world
come
to
visit
it
every
year.
A.
so;
that
B.
such;
that
C.
enough;
that
D.
very;
that
23.
Hurry
up,
Mike.
You
must
get
to
the
airport
an
hour
before
the
plane
.
A.
gets
off
B.
turns
off
C.
puts
off
D.
takes
off
24.
Excuse
me,
could
you
please

that
cigarette
A.
put
on
B.
put
off
C.
put
out
D.
put
up
25.
---
We
must
do
something
to
save
wild
animals.
---
You
are
right.
We
should
make
more
rules
to

wild
animals

being
killed.
A.
prevent;
from
B.
protect;
from
C.
catch;
for
D.
stop;
for
26.
---
Did
you
make
the
kite
,
kids
---
No,
our
uncle

it
for
us.
A.
itself;
is
making
B.
yourselves;
made
C.
yourself;
made
D.
themselves;
makes
27.
He

the
picture
on
the
wall.
A.
hanged
B.
hung
C.
has
hanged
D.
was
hanged
28.
---
How
is
the
life
in
your
hometown
now
---
People
are
living
a
much
better
life
than
I
.
A.
expected
B.
planned
C.
discovered
D.
noticed
29.
---
I
hear
Tom
is
working
at
physics
very
hard.
---
I'm

he
will
pass
the
physics
exam
this
time.
A.
afraid
B.
right
C.
certain
D.
upset
30.
There
are
lots
of

that
students
have
to
follow
in
school.
A.
exercises
B.
problems
C.
skills
D.
rules
31.
His
father
is
a

man.
I
hardly
ever
see
a
smile(微笑)
on
his
face.
A.
serious
B.
funny
C.
quiet
D.
outgoing
32.
---
Dad,
it's
such
a
long
way
from
our
home
to
the
park!
---
You
mean
it's

to
take
a
taxi
A.
popular
B.
necessary
C.
possible
D.
important
33.
---
Hi,
Cathy!
Could
you
help
me
cut
up
the
meat
for
dumplings
---
OK,
Mom.
But
where
is
the

A.
fork
B.
chopstick
C.
knife
D.
spoon
34.
---
Maria,

the
dog,
will
you
---
Why
ask
me
Tom
is
playing
there.
A.
to
feed
B.
feed
C.
feeding
35.
---

photos!
Look
at
the
sign.
Taking
photos
is
not
allowed
in
this
museum.
---
Sorry,
I
didn't
notice
it
.
A.
Don't
take
B.
No
to
take
C.
Take
三、完形填空(共10小题;共15分)
As
we
all
know
that
some
students
in
China
are
injured
or
killed
now.
It
is
very
sad
for
us
to
hear
the
news.
36

can
you
avoid(避免)
danger
in
your
daily
life
(日常生活)
Self-protection(自我保护)
is
very
important.
Here
are
four
tips
for
you.

Try
to
stay
with
friends
on
the
way
to
school
or
home.
If
you
are
37

on
the
way,
try
not
to
talk
with
strangers.
If
someone
follows
you
all
the
time,
you
must
keep
38

and
call
your
parents
or
friends
to
help
you.

Call
120
for
help
in
time.
If
you
have
a
car
39

or
someone
is
hurt,
you
should
call
120
quickly.

Be
careful
when
using
the
Internet.
You
may
use
the
Internet
to
get
40
.
If
an
online
friend
asks
you
to
go
out
and
41

him,
you
should
let
your
parents
know
first
and
listen
to
their
42
.

Don't
open
the
door
for
the
43
.
When
you
are
at
home
alone,
if
there
is
a
knock
at
the
door,
you
should
44

who
it
is
first.
Knowing
the
man
is
a
stranger,
don't
45

the
door.
Please
call
your
parents
as
quickly
as
possible.
36.
A.
Who
B.
Where
C.
What
D.
How
37.
A.
worried
B.
alone
C.
sick
D.
weak
38.
A.
serious
B.
outgoing
C.
comfortable
D.
calm
39.
A.
price
B.
seat
C.
driver
D.
accident
40.
A.
rooms
B.
books
C.
information
D.
influence
41.
A.
meet
B.
talk
C.
wait
D.
hear
42.
A.
advice
B.
stories
C.
way
D.
differences
43.
A.
strangers
B.
parents
C.
friends
D.
classmates
44.
A.
guess
B.
ask
C.
believe
D.
hope
45.
A.
touch
B.
mend
C.
use
D.
open
四、阅读理解(共15小题;共30分)
A
Now
more
and
more
people
buy
and
sell
things
on
the
Internet.
They
buy
and
sell
goods
to
make
money.
So
hackers(黑客)
around
the
world
are
interested
in
this.
Hackers
are
often
young
people
who
love
computers
greatly.
They
use
computers
to
get
on
the
Internet,
looking
for
ways
to
go
into
computer
systems
run
by
banks,
homes
and
all
kinds
of
offices.
If
they
go
into
a
computer
system,
they
will
find
other
people's
credit
cards
and
try
to
steal
the
numbers.
With
the
numbers
they
can
take
the
money
out
of
the
bank.
Hackers
often
break
into
your
computer
system,
but
it's
difficult
to
find
them.
So
it
is
also
difficult
for
you
to
find
the
hacker
who
is
taking
your
money
out
of
the
bank.
Hackers
can
get
the
money
from
a
bank
with
the
credit
card
number
they
have
got
from
your
computer.
Scientists
always
ask
people
who
have
computers
to
pay
attention
to
hackers.
They
also
tell
people
how
to
fight
the
hackers.
The
answer
is
to
choose
a
clever
password(密码)
and
change
it
often
and
not
to
show
your
credit
card
out
to
anybody.
If
you
are
not
careful,
it's
just
like
keeping
the
bank
door
wide
open.
46.
The
underlined
word
"this"
refers
to
.
A.
helping
others
on
the
Internet
B.
buying
and
selling
things
on
the
Internet
C.
saving
money
on
the
Internet
D.
giving
money
to
others
47.
Which
is
NOT
true
about
hackers
A.
They
are
often
young
people.
B.
They
look
for
ways
to
go
into
computer
systems.
C.
They
love
computers
greatly.
D.
They
steal
money
from
other's
computers.
48.
It's

to
find
the
hackers
who
break
into
your
computer
system.
A.
easy
B.
nice
C.
hard
D.
wrong
49.
Which
of
the
following
is
NOT
about
protecting
the
credit
card
A.
Choosing
a
clever
password.
B.
Changing
the
password
often.
C.
Putting
your
money
into
the
bank.
D.
Don't
show
your
credit
card
out
to
anybody.
50.
What
can
we
learn
from
the
passage
A.
Be
careful
to
use
our
credit
cards.
B.
We
shouldn't
use
computers
often.
C.
Don't
show
your
credit
card
out
to
anybody.
D.
We
must
catch
the
hackers.
B
Du
Yijun,
a
21-year-old
Fudan
University
student,
was
one
of
the
36
people
died
in
the
crush
on
New
Year's
Eve
on
the
Bund(外滩)
in
Shanghai.
On
the
night
of
December
31,
2014,
a
holiday
celebration
turned
into
a
terrible
tragedy.
"Overcrowding(过度拥挤)
and
the
failure
of
the
police
to
control
the
crowds
were
the
main
reason
it
happened,"
the
authorities(官方)
said.
For
the
last
three
year,
light
shows
on
the
Bund
have
been
successfully
held
for
New
Year's
Eve
celebrations,
but
this
year
the
light
show
was
canceled
and
there
were
fewer
police
on
hand.
But
the
crowds
came
anyway.
About
300,000
people
were
on
the
Bund
by
8:00
that
evening
and
more
kept
arriving
until
people
suddenly
became
noisy
and
angry
around
11:30.
Some
people
fell
on
the
stairs
and
were
stepped
heavily
on
and
died.
In
Shanghai,
the
authorities
have
reacted(作出反应)
to
the
Bund
tragedy
by
canceling
big
events.
But
this
isn't
really
necessary.
Better
planning
and
better
crowd
control
can
make
sure
the
celebrations
are
safe.
However,
if
you're
going
to
a
place
where
there
will
be
a
big
crowd,
you
should
take
notice
of
where
the
exits(出口)
are,
and
if
there
are
too
many
people,
move
away
from
the
center
of
the
crowd.
And
most
importantly,
if
the
crowd
seems
too
big
and
makes
you
feel
uncomfortable,
just
leave.
No
celebration
is
worth
losing
your
life
over.
51.
The
underlined
word
"crush"
in
the
passage
probably
means
"
"
in
Chinese.
A.
美丽的景色
B.
成功的活动
C.
拥挤的人群
52.
How
many
people
died
in
the
Bund
tragedy
in
Shanghai
on
Dec
31,
2014
A.
21.
B.
36.
C.
300,000.
53.
What
caused
the
tragedy
to
happen
according
to
the
authorities
A.
Overcrowding
and
the
failure
of
the
police
to
control
the
crowds.
B.
Unsafe
exits
and
small
squares
to
hold
enough
people.
C.
Bad
weather
and
dark
lights
to
guide
people
to
leave.
54.
What
can
we
learn
from
the
passage
A.
The
celebrations
go
successfully
if
well
organized.
B.
It's
necessary
to
cancel
all
the
events
to
avoid
accidents.
C.
Not
all
celebrations
are
worth
losing
one's
life.
55.
The
passage
mainly
tells
us
about
.
A.
the
failure
of
the
police
to
protect
people
B.
a
tragedy
happening
on
the
Bund
and
its
lesson
C.
some
successful
light
shows
held
in
Shanghai
C
I
heard
the
bees
long
before
I
saw
them.
It
was
a
very
hot
afternoon,
and
we
decided
to
cool
off
in
the
river
near
my
home.
As
we
climbed
down
a
small
rocky
hill
toward
the
water,
my
boyfriend
John
suddenly
started
to
shout
then
jumped
into
the
water
below.
Peter
and
Mary
quickly
followed
but
I
was
too
far
away
to
jump.
I
was
trapped.
I
heard
a
low
hum(嗡嗡声),
which
was
growing
louder.
From
a
distance,
the
group
of
bees
looked
almost
like
a
cloud
of
smoke.
As
it
got
closer,
I
realized
it
was
actually
thousands
of
bees
flying
towards
me.
All
I
could
do
was
cover
my
face
with
my
hands.
Crazily,
I
thought
that
if
I
sat
very
still(不动的),
the
bees
would
think
I
was
just
another
rock.
After
a
few
seconds,
I
knew
my
plan
hadn't
worked.
The
bees
were
attacking
me.
I
could
hear
my
friends
shouting
at
me
to
get
down
to
the
pool
fast.
But
it
wasn't
so
easy.
I
was
in
great
pain
and
the
only
way
I
could
get
away
was
to
use
my
hands
to
climb
down
the
rocks.
However,
I
was
afraid
to
do
that
at
first
because
my
face
would
be
unprotected.
The
noise
the
bees
made
was
so
loud
and
frightening,
but
I
had
no
choice.
I
rushed
down
the
rocks
and
jumped
into
the
pool,
but
I
don't
remember
doing
it.
I
was
just
so
happy
to
be
free
from
the
pain.
I
was
safe
and
the
water
felt
wonderful.
But
we
still
weren't
out
of
danger.
Every
time
we
tried
to
climb
out
of
the
pool,
the
bees
flew
back
over
our
heads.
We
spent
the
next
three
hours
in
the
water,
putting
our
heads
under
the
water
from
time
to
time
to
avoid
the
bees
until
they
finally
lost
interest.
56.
How
many
people
went
swimming
that
day
A.
Two.
B.
Three.
C.
Four.
D.
Five.
57.
The
underlined
word
"it"
(in
paragraph
3)
refers
to
"
".
A.
a
rock
B.
the
group
of
bees
C.
a
hill
D.
the
fiver
58.
At
first
why
didn't
the
writer
want
to
climb
down
the
rocks
A.
She
was
afraid
she
would
fall.
B.
She
was
too
far
away
from
the
pool.
C.
She
thought
the
bees
would
follow
her.
D.
She
didn't
want
her
face
to
be
unprotected.
59.
How
did
the
writer
escape
the
bees
A.
She
covered
her
face
with
her
hands.
B.
She
hid
behind
the
rocks.
C.
She
jumped
into
a
water
pool.
D.
She
pretended
to
be
a
rock.
60.
In
what
order
are
the
following
mentioned
in
the
story
a.
The
writer
rushed
down
the
rocks.
b.
John
jumped
into
the
water.
c.
The
low
hum
grew
louder.
d.
The
bees
flew
back
over
their
heads.
e.
The
bees
were
attacking
the
writer.
A.
b,
c,
e,
a,
d.
B.
b,
a,
e,
c,
d.
C.
e,
d,
e,
a,
b.
D.
c,
b,
d,
e,
a.
五、单词拼写(单句首字母填空)(共5小题;共5分)
61.
My
mother
told
me
not
to
speak
to
s

in
the
street.
62.
If
a
person
loses
a
lot
of
b
,
he
will
become
ill
and
may
die.
63.
The
old
lady
fell
over
and
hurt
her
k

badly.
64.
It's
rude
to
s

your
chopsticks
into
your
food.
65.
The
strong
wind
may
blow
off
heavy
o

from
tall
buildings
and
hurt
people.
六、单词拼写(根据中文提示拼写单词)(共5小题;共5分)
66.
I
look
much
(难看的)
in
the
photo.
67.
Too
much
work
has
been
placed
on
his
(肩膀).
68.
There
were
many
(地震)
in
different
places
last
year
and
they
brought
people
much
trouble.
69.
There
is
a
pair
of
(剪刀)
in
the
box.
70.
I
think
(知识)
is
more
important
than
money.
七、翻译(根据中文提示完成句子)(共5小题;共10分)
71.
Look!
The
alien
is


(追赶)
the
man.
72.
那起事故发生得很突然。
The
accident
happened



.
73.
我们不得不工作几个小时,
来阻止轮船下沉。
We


work
for
hours


the
ship



.
74.
Because
I
have
a
cold,
the
doctor
told
me
to


(躺下)
and
have
a
good
sleep.
75.
小心会减少错误。(仅限2词)
Being
careful
can

mistakes.
八、适当形式填空(单句适当形式)(共5小题;共5分)
76.
My
parents
often
tell
me
the
(safe)
is
the
most
important.
77.
She
is
very
,
so
she
never
makes

mistakes.
(care)
78.
There
were
many
(wound)
soldiers
in
the
war.
79.
Never
go
out
in
the
(hot)
of
the
day
without
a
hat.
80.
She
put
all
her
effort
into
ballet
(train)
before
she
entered
the
film
industry.
九、阅读与表达(问答式)(共5小题;共10分)
Playgrounds
offer
kids
fresh
air,
friends,
and
exercise.
However,
each
year,
more
than
200,000
kids
go
to
hospital
because
they
are
hurt
in
one
way
or
another
when
playing
on
the
playground.
So
what
can
we
do
to
improve
the
situation
We
should
make
sure
the
playground
is
safe
for
the
children.
It
should
be
soft
and
thick
enough,
so
when
the
children
fall,
they
won't
hurt
too
much.
Things
like
water,
rocks
or
broken
glass
might
cause
danger
to
the
kids.
Cleaners
should
check
the
playground
from
time
to
time
and
clear
away
these
dangerous
things.
In
fact,
children
themselves
also
need
to
help
keep
the
playground
clean
and
safe.
That
means
each
time
after
playing
they
should
pick
up
the
rubbish
they've
produced.
If
someone
finds
there
is
something
wrong
with
the
equipment(设施),
he
should
report
to
the
keeper
of
the
playground,
so
people
will
come
to
fix
it.
Teaching
kids
how
to
play
safely
is
also
very
important.
If
they
know
the
rules
of
the
playground,
they
won't
get
hurt
easily.
For
example,
they
should
never
push
when
others
are
on
seesaws
or
swings.
If
someone
is
going
to
jump
off
some
equipment,
he
should
first
look
down
to
make
sure
no
other
kids
are
in
the
way.
Of
course,
wearing
right
clothes
may
also
help
to
keep
safe.
Clothes
with
strings(绳)
can
get
caught
on
equipment
which
may
hurt
the
kid
badly.
In
short,
our
kids
can
both
enjoy
themselves
and
be
safe
if
we
are
working
together
to
improve
the
situation.
根据短文内容,完成下列小题。
81.
Do
many
kids
get
hurt
while
playing
on
the
playground
every
year





82.
What
things
might
cause
danger
to
the
kids
on
the
playground





83.
Why
should
we
teach
kids
how
to
play
safely
on
the
playground





84.
Who
need
to
work
together
to
improve
the
situation
of
the
playground





85.
What's
the
passage
mainly
about





十、补全对话(选择)(共5小题;共10分)
Bob:
Good
morning.
Kim:
Good
morning.
Bob:
86.

It
can
save
a
lot
of
time.
Kim:
Well,
I
prefer
walking
to
driving
a
car.
Bob:
Mm.
It's
good
for
health
and
environment.
Kim:
Yes.
Environment
is
very
important
for
us.
87.

Bob:
Yeah,
right.
What
else
can
we
do
Kim:
For
example,
you'd
better
not
buy
clothes
made
of
animal
fur.
Bob:
I
agree
with
you.
88.

Anything
else
Kim:
Don't
use
plastic
bags.
Bob:
89.

Kim:
Yes,
they
are
really
useful
for
us.But
they
pollute
our
environment.
Bob:
90.

Kim:
We
can
use
cloth
bags
instead
of
plastic
bags.
Bob:
That's
a
good
idea.
Oh,
it's
too
late.
See
you!
Kim:
See
you!
A.
Everyone
should
do
something
for
it.
B.
Why
don't
you
drive
to
work
C.
It's
helpful
for
protecting
plants.
D.
It's
a
good
way
for
protecting
animals.
E.
But
don't
you
think
they
are
really
convenient(方便的)
in
our
daily
lives
F.
Why
do
you
go
to
work
in
a
car
G.
How
can
we
carry
things
after
shopping,
then
答案
一、听力(听力)
1.
E
2.
A
3.
D
4.
C
5.
B
6.
B
7.
C
8.
A
9.
A
10.
B
11.
A
12.
B
13.
B
14.
C
15.
B
16.
ten/10
17.
problems
18.
happy
19.
fast
20.
students
听力原文
一、听力部分(听力原文)
Ⅰ.
听对话,选择与对话内容相符的图片。每段对话读两遍。
1.
A:What
does
your
father
do
B:He
is
a
cook.
2.
A:What
about
going
to
Beihai
Park
B:Good
idea!Let's
go.
3.
A:What
are
the
students
doing
B:They
are
cleaning
the
windows.
4.
A:Do
you
know
the
man
B:Yes.He
is
Chinese
and
he
is
a
great
scientist.
5.
A:What's
your
present
for
Mary's
birthday
B:A
lovely
doll.
Ⅱ.
听句子,选择正确的答语。每个句子读一遍。
6.
Jenny's
mother
is
ill.
7.
Which
would
you
like,juice
or
coffee
8.
Sorry,I
have
taken
your
pen
by
mistake.
9.
Would
you
like
to
come
to
my
party
this
evening
10.
Why
not
buy
some
flowers
for
her
Ⅲ.
听短文及问题,选择正确答案。短文及问题读两遍。
Once
there
was
a
woman
called
Ann.She
had
two
children,a
boy
and
a
girl.The
girl,Mary,was
goodlooking,but
the
boy,Mike,was
not.
One
day,they
found
a
mirror
and
for
the
first
time
saw
what
they
looked
like.The
girl
was
very
pleased.She
said
to
her
brother,"How
beautiful
I
am!I
look
much
more
beautiful
than
you!"The
boy
didn't
like
what
she
said
and
gave
her
a
push."Go
away!"
he
said.
Their
mother
saw
what
was
happening
and
said
to
the
girl,"You
must
always
be
good
as
well
as
look
good."And
to
the
boy
she
said,"My
dear,if
you
help
everyone,everyone
will
love
you.It
will
not
matter
that
you
are
not
as
goodlooking
as
your
sister."
Q:
11.
Who
was
the
woman
12.
How
many
children
did
the
woman
have
13.
Who
was
glad
after
they
saw
themselves
in
the
mirror
14.
What
was
Mary
like
15.
What
does
the
story
tell
us
Ⅳ.
听短文,完成表格信息。短文读两遍。
Boys
and
girls,it's
ten
o'clock
now.It's
time
for
us
to
have
a
break.Here
comes
"The
voice
of
the
school".I
think
you
must
be
tired
after
class.What
do
you
think
of
listening
to
music
at
this
time
Music
can
help
you
be
more
active.And
listening
to
music
can
help
you
relax.It's
true
that
we
can
learn
better
when
we're
relaxed.Music
can
help
you
forget
all
the
problems.So
it's
really
helpful
for
your
next
class.You
and
your
classmates
must
be
very
happy
to
hear
your
favorite
music.You
can
sing
and
dance
to
music.Scientists
believe
that
the
sound
of
western
classical
music
makes
people
feel
richer.Fast
music
makes
people
do
things
faster.Isn't
that
interesting
Haha...,but
I
think
most
of
the
middle
school
students
like
pop
music
best.OK,now
let's
enjoy
the
most
popular
song
"Baby"
from
Justin
Bieber.
二、单项选择
21.
A
22.
A
23.
D
24.
C
25.
B
26.
B
27.
B
28.
A
29.
C
30.
D
31.
A
32.
B
33.
C
34.
B
35.
A
三、完形填空
36.
D
37.
B
38.
D
39.
D
40.
C
41.
A
42.
A
43.
A
44.
B
45.
D
四、阅读理解
46.
B
47.
D
48.
C
49.
C
50.
A
51.
C
52.
B
53.
A
54.
A
55.
B
56.
C
57.
B
58.
D
59.
C
60.
A
五、单词拼写(单句首字母填空)
61.
strangers
62.
blood
63.
knee
64.
stick
65.
objects
六、单词拼写(根据中文提示拼写单词)
66.
uglier
67.
shoulder
68.
earthquakes
69.
scissors
70.
knowledge
七、翻译(根据中文提示完成句子)
71.
running
after
72.
all
of
a
sudden
73.
had
to;
to
stop;
from
going
down
74.
lie
down
75.
bring
down
八、适当形式填空(单句适当形式)
76.
safety
77.
careful,
careless
78.
wounded
79.
heat
80.
training
九、阅读与表达(问答式)
81.
Yes,
they
do.
82.
Things
like
water,
rocks
or
broken
glass.
83.
Because
if
they
know
the
rules
of
the
playground,
they
won't
get
hurt
easily.
84.
Cleaners,
parents
(teachers)
and
children
themselves.
85.
What
we
can
do
to
keep
the
children
safe
on
the
playground.
/to
improve
the
situation
of
the
playground.
十、补全对话(选择)
86.
B
87.
A
88.
D
89.
E
90.
G