人教版八年级英语下册Unit 7 What's the highest mountain in the world? 单元拓展阅读训练（含答案）

人教版八年级英语下册Unit7
单元拓展阅读训练
—
扩宽视野，启迪心智
A
Probably
you
have
seen
photos
of
the
Grand
Canyon（峡谷）,
the
great
valley
in
the
desert
country
of
Arizona.
But
you
must
go
there
yourself
to
feel
its
true
size
and
beauty.
The
Grand
Canyon
is
one
of
the
greatest
natural
wonders
of
the
world.
The
Colorado
River（科罗拉多河）formed
the
Grand
Canyon
over
millions
of
years.
Slowly,
the
river
cut
down
through
hard
rock.
At
the
same
time,
the
land
was
rising.
Today
the
canyon
is
1.5
kilometers
and
445
kilometers
long.
The
oldest
rocks
at
the
bottom
of
the
canyon
are
more
than
1
billion
years
old.
The
width
varies
from
about
200
meters
to
29
kilometers
across.
The
rim（边）or
top
of
the
canyon
is
about
2,300
meters
above
sea
level
on
the
South
Rim,
and
about
3,000
meters
on
the
other
side.
As
a
result,
there
are
different
kinds
of
plants
and
animals
on
opposite
sides
of
the
canyon.
The
South
Rim
is
dry
desert
country.
The
North
Rim
has
tall
forests.
The
canyon
looks
different
at
different
times
of
day,
and
in
different
seasons
and
weather.
At
sunrise
and
sunset
the
red,
gold,
brown
and
orange
colors
of
the
rocks
are
especially
clear
and
bright.
In
winter,
the
canyon
is
partly
covered
with
snow.
The
view
from
the
South
Rim
of
the
Grand
Canyon
is
the
best.
Most
visitors
come
here
and
stay
in
campgrounds
or
hotels.
Every
point
along
the
canyon’s
edge
offers
a
different
view.
The
North
rim
of
the
Canyon
is
quieter.
It
takes
all
day
to
drive
there
from
the
South
Rim
because
there
is
only
one
bridge
across
the
Colorado
River.
On
the
way,
you
go
through
Navado
Indian
lands,
and
a
colorful
pink
desert
called
“The
Painted
Desert”.
(
)1.
The
best
way
to
feel
the
true
beauty
of
the
Grand
Canyon
is
to________.
A.
see
its
photographs
B.
listen
to
the
report
about
it
C.
watch
its
introduction
on
TV
D.
go
there
yourself
and
visit
it
(
)2.
According
to
the
second
paragraph,
________.
A.the
Grand
Canyon
has
a
short
history
B.
its
size
never
changed
in
the
history
C.
the
Grand
Canyon
was
formed
by
the
earthquake
D.
You
can
enjoy
different
scenery
on
different
sides
of
the
canyon
(
)3.
The
scene
of
the
canyon
is
________.
A.various
depending
on
different
time
and
places
B.the
same
C.various
depending
on
different
time
D.various
depending
on
different
places
(
)4.
If
you
want
to
visit
the
North
Rim
from
the
South
Rim,
you________.
A.can
go
there
in
many
directions
B.won’t
spend
much
time
on
the
way
C.can
visit
The
painted
Desert
on
the
way
D.needn’t
go
across
any
bridges
(
)5.
If
you
want
to
have
a
visit
to
the
Grand
Canyon,
you’d
better
go
to
_______.
A.
the
North
Rim
B.
the
South
Rim
C.
the
bottom
D.
Navado
Indian
Lands
B
Vanuatu(瓦努阿图
)is
an
island
nation
in
the
South
Pacific.
It
is
one
of
the
smallest
countries
in
the
world.
But
for
those
who
are
interested
in
adventure
and
sport,
there
is
a
lot
to
do.
Vanuatu’s
islands
offer
visitors
two
of
the
most
exciting
and
dangerous
activities
in
the
world:
volcano（火山）surfing
and
land
diving.
Volcano
Surfing
On
Tanna
Island,
Mount
Yasur
rises
300
meters
into
the
sky.
Yasur
is
an
active
volcano,
and
it
erupts（爆发）almost
every
day,
sometimes
several
times
a
day.
For
centuries,
people
have
climbed
this
mountain
to
visit
the
top.
Recently,
people
have
also
started
climbing
Yasur
to
surf
the
volcano.
In
some
ways,
volcano
surfing（火山冲浪）is
like
surfing
in
the
sea,
but
in
other
ways
it’s
very
different.
Volcano
surfers
try
to
escape
the
erupting
volcano
—without
getting
hit
by
flying
rocks!
It’s
fast,
fun
and
dangerous—the
perfect
extreme
sport（极限运动）.
Land
Diving
(陆上跳水）
Most
people
are
familiar
with
bungee
jumping,
but
do
you
know
bungee
jumping
started
on
Pentecost
Island
in
Vanuatu
and
is
almost
fifteen
centuries
old?
The
activity,
first
called
land
diving,
is
part
of
a
religious
ceremony（宗教仪式）.
A
man
ties
tree
vines（树藤）to
his
legs.
He
then
jumps
head-first
from
a
high
tower
to
touch
the
earth
with
the
top
of
his
head
—without
breaking
the
vine.
Every
spring,
island
natives
(men
only)
still
take
part
in
this
amazing
activity.
(
)6.
In
Line
2,
what
does
the
word“those”mean?
A.
People.
B.
Animals.
C.
Activities.
D.
Islands.
(
)7.
According
to
the
passage,
Mount
Yasur
______.
A.
is
no
longer
active
B.
is
on
Pentecost
Island
C.
erupts
almost
every
day
D.
rises
800
meters
into
the
sky
(
)8.
Why
have
people
recently
started
climbing
Mount
Yasur?
A.
People
can
climb
it
easily.
B.
People
can
make
money.
C.
People
can
watch
snow
on
it.
D.
People
can
surf
the
volcano.
(
)9.
Which
of
the
following
about
land
diving
is
true?
A.
It
is
not
dangerous
at
all.
B.
It
was
first
called“bungee
jumping”.
C.
It
is
a
traditional
activity
in
Vanuatu
D.
It
came
to
Vanuatu
from
another
country.
(
)10.
What
is
the
purpose
of
the
passage?
A.
To
tell
people
not
to
do
dangerous
sports.
B.
To
explain
what
volcano
surfing
and
land
diving
are.
C.
To
talk
about
the
world’s
best
volcano
surfer
and
land
diver.
D.
To
compare
activities
in
Vanuatu
with
sports
in
New
Zealand.
C.
Should
we
be
afraid
of
sharks
(鲨鱼)?
Maybe
not.
New
research
into
the
reasons
for
shark
attack
suggests
that
sharks
don’t
like
the
way
humans
taste!
In
fact,
most
people
who
are
attacked
by
the
shark
are
still
alive
after
receiving
only
one
bite
(咬).
Why
is
this?
There
are
many
opinions
to
explain
why
sharks
sometimes
attack
people.
One
opinion
is
that
sharks
are
just
curious.
We
know
that
sharks
are
the
strongest
animals
in
their
environment,
so
they
are
not
afraid
of
anything.
Naturally,
that
means
they
are
curious
when
they
meet
something
unusual.
Because
they
don’t
have
hands
or
feet,
the
only
way
they
can
find
out
an
object
is
to
bite
it!
It
is
thought
that
sharks
sometimes
bite
humans
for
this
reason,
and
then
swim
away.
Scientists
also
say
that
sharks
would
not
waste
energy
trying
to
eat
a
human,
as
we
have
a
lot
of
bones.
It
is
hard
for
a
shark
to
eat
us
because
sharks
don’t
have
hands,
and
they
can’t
pull
the
meat
off
our
bones.
Maybe
that’s
why
they
only
bite
us
once.
Unluckily,
one
bite
from
a
large
shark
is
serious
enough
to
hurt
people
greatly!
Another
opinion
is
that
sharks
attack
humans
by
mistake.
Some
sharks
may
sometimes
mistake
humans
for
a
seal（海豹）.
An
example
of
this
is
when
a
shark
attacks
a
surfer.
A
surfer
lying
on
a
surfboard
looks
like
a
seal
when
seen
from
below.
Sharks
like
seals
because
they
have
thick
fat.
Whatever
the
reason
for
shark
attacks
on
humans,
sharks
should
be
afraid
of
us.
Sadly,
we
kill
almost
40
million
of
them
each
year.
(
)11.What
happens
to
people
attacked
by
sharks?
A.
Most
of
them
because
blind.
B.
Most
of
them
because
of
deaf.
C.
Most
of
them
died.
D.
Most
of
them
are
still
alive.
(
)12.The
underlined
word
“curious”
in
paragraph
2
means________.
A.好奇的
B.
害怕的
C.愤怒的
D.无聊的
(
)13.How
do
sharks
find
out
about
an
unusual
object
according
to
the
passage?
A.
By
biting.
B.
By
smelling.
C.
By
touching.
D.
By
killing.
(
)14.Which
sentence
about
sharks
is
TRUE?
A.
Sharks
pull
meat
off
bones
when
they
eat.
B.
Sharks
might
mistake
humans
for
seals.
C.
Sharks
like
to
attack
surfers
because
of
their
thick
fat.
D.
One
bite
from
a
shark
is
nothing
serious.
(
)15.What
would
the
author
write
the
passage
mainly
for?
A.
To
tell
surfers
to
stay
away
from
sharks.
B.
To
ask
people
to
stop
killing
sharks.
C.
To
let
us
know
the
reasons
for
shark
attacks
on
people.
D.
To
show
that
humans
are
much
stronger
than
sharks.
D
Put
February
2
in
your
diary!
It
is
World
Wetlands
Day（世界湿地日）!
It
marks
the
date
that
the
Convention(公约)on
Wetlands
was
signed(签署)
in
1971.This
special
day
was
first
celebrated
in
1997
and
it
is
celebrated
every
year.
The
celebration
is
a
call
for
action.
It
is
a
way
to
show
people
how
important
and
useful
the
wetlands
are
for
people.
On
World
Wetlands
Day,
people
around
the
world
take
part
in
many
wetlands
activities.
People
take
trips
to
the
local
wetlands.
There
are
talks
about
how
important
the
wetlands
are.
People
get
together
to
clean
up
their
local
wetlands.
Children
draw
pictures
to
advertise
the
day.
People
also
compete
in
boat
races.
World
Wetlands
Day
is
important!
If
there
are
no
wetlands,
there
will
be
no
water
for
anyone
in
the
future.
Wetlands
help
protect
nature
and
resources(资源)
like
fresh
water.
Already,
more
than
10,
000
million
people
in
the
world
do
not
have
fresh
water.
Many
people
do
not
know
how
important
the
wetlands
are.
They
can
understand
why
elephants
or
tigers
are
important
because
they
are
big,
beautiful
animals.
It
is
much
harder
for
them
to
understand
how
important
the
animals
in
the
wetlands
are.
These
small
animals,
such
as
frogs
and
snails,
play
a
very
important
part
in
keeping
the
balance
of
nature.
All
plants
and
animals
are
parts
of
the
food
chain(食物链).
If
the
small
wetlands
animals
die,
some
animals
in
the
food
chain
will
have
nothing
to
eat.
They
will
also
die.
People
need
the
wetlands
to
keep
the
balance
of
nature
in
the
world.
If
we
do
not
protect
nature
today,
it
will
be
gone
tomorrow.
(
)16.What
should
you
put
in
your
diary?
A.Some
frogs.
B.The
date
of
World
Wetlands
Day.
C.1971.
D.Any
special
day.
(
)17.Where
do
people
celebrate
World
Wetlands
Day?
A.All
over
the
world.
B.In
ships.
C.At
home.
D.In
their
own
way.
(
)18.Which
of
the
following
sentences
is
NOT
true?
A.People
celebrate
World
Wetlands
Day
by
taking
part
in
competitions.
B.People
celebrate
World
Wetlands
Day
by
taking
trips
to
the
local
wetlands.
C.People
celebrate
World
Wetlands
Day
by
listening
to
talks
about
the
wetlands.
D.People
celebrate
World
Wetlands
Day
by
talking
about
the
weather.
(
)19.Why
are
small
animals
important?
A.Bigger
animals
are
eaten
by
them
so
they
can’t
live
any
more.
B.They
are
beautiful
and
people
like
them
very
much..
C.
They
are
parts
of
the
balance
of
nature
and
the
food
chain.
D.Without
them,
there
may
be
no
water.
(
)20.Which
of
the
following
might
be
the
best
title
of
the
article?
A.Wetlands
Are
Important
B.Small
Animals
Are
Also
Important
C.Balance
of
Nature
D.Food
Chain
E
Many
young
people
all
over
the
world
love
to
travel
and
see
the
world.
Have
you
heard
of
backpackers?
They
are
normally
young
people
who
travel
cheaply
with
just
one
rucksack(背包)
and
comfortable
walking
boots.
They
buy
local
food
in
supermarkets
to
save
money
and?at
the
same
time
become
friends
with
local
people.
Some
people
prefer
adventure
tours.
Brave
people
may
try
bungee
jumping
from
the
bridge
overlooking
the
Victoria
Falls
in
Africa
with
only
a
rope
around
their
legs.Some
enjoy
the
challenge
of
rock
climbing
in
the
Alps
in
Switzerland.
Others
may
go
snowboarding
in
the
Rocky
Mountains
in
the
USA.
Have
you
ever
heard
of
an
ecotourism
(生态旅游)?
It
means
a
holiday
in
which
people
come
close
to
nature
but
are
very
careful
not
to
damage
the
nature
beauty
or
living
things
in
the
area.
How
can
this
be
possible?
Let's
read
an
interview
with
people
who
enjoyed
a
swimming
with
dolphins
tour.
Interviewer:
what
was
the
most
exciting
part
of
your
holiday?
Sharon
from
South
Africa:
I
felt
excited
when
I
heard
the
sound
of
wild
dolphins
approaching
me
in
the
water
and
then
swimming
directly
under
me.
An
image
I
will
never
forget.
Xavier
from
Portugal：There
were
two
dolphins
below
us
swimming
downwards.
One
stopped
and
looked
back
at
me
as
if
to
say
“What
are
those
strange
beings?”
Fantastic!
Interviewer:
Did
you
feel
that
your
holiday
helped
local
people
and
areas
to
keep
their
beautiful
environment?
Jane
from
New
Zealand:
The
hotel
and
the
whale
and
dolphin
watching
captures
employ(雇佣)
local
people.
They
used
to
hunt
those
whales
and
dolphins,
but
now
they
can
earn
money
from
tourism
and
don't
have
to
kill
them.
Not
many
boats
are
allowed
at
the
same
time
so
these
animals
aren't
bothered.
The
boat
companies
also
work
to
educate
the
local
schools
about
the
importance
of
protecting
these
wonderful
creatures.
Helen
from
England:
I
am
glad
they
are
not
killing
the
whales
and
dolphins
any
more,
but
the
cars
and
boats
use
fuel
which
could
cause
pollution
and
make
the
sea
less
clean.
Well,
what
do
you
think?
Thousands
of
people
visit
the
Forbidden
City
or
the
Great
Wall
of
China
every
year.
Do
you
think
that's
a
good
thing,
or
do
you
feel
that
China's
important
historical
sites
can
be
damaged?
Are
there
any
ways
of
sharing
your
treasures
(珍宝)
but
keeping
them
in
good
condition?
(
)21.?From
the
first
paragraph,
backpackers
are
young
people__________?.
A.
traveling
cheaply
with
just
one
rucksack
B.
visiting
historical
places
in
China
C.
who
love
to
travel
and
see
the
world
alone
D.
who
love
to
buy
local
things
as
souvenirs
(
)22.?What
did
Sharon,
Xavier,
Jane
and
Helen
do
in
their
holiday?
A.
Try
bungee
jumping
in
Africa.
B.
Enjoy
rock
climbing
in
Switzerland.
C.
Enjoy
a
swimming
with
dolphins
tour.
D.
Go
snowboarding
in
the
USA.
(
)23.Sharon,Xavier,Jane
and
Helen
think
the
tours
are
helpful
EXCEPT_______.
A.
the
hotel
and
the
companies
employ
local
people
to
earn
money
B.
local
people
used
to
hunt
and
kill
whales
and
dolphins
but
now
they
don't
C.
not
many
boats
are
allowed
at
the
same
time
so
animals
aren't
bothered
D.
the
cars
and
boats
use
fuel
to
cause
pollution
and
make
the
sea
dirtier
(
)24.?According
to
the
passage,
which
of
the
following
is
NOT
true?
A.
It's
a
cheap
and
popular
way
to
travel
and
see
the
world
as
a
backpacker.
B.
We
believe
an
ecotourism
can
greatly
protect
the
nature
beauty
and
living
things.
C.
The
writer
think
China's
sites
can
be
protected
because
of?being
visited
by
tourists.
D.
Following
the
rules
of
the
nature
is
good
for
sharing
treasures
and
keeping
them
good.
(
)25.?What
can't
you
do
when
you
take
an
ecotourism?
A.
Come
close
to
nature
in
the
holiday
carefully.
B.
Protect
the
living
things
in
the
area.
C.
Be
careful
not
to
damage
the
nature
beauty.
D.
Keep
the
local
people
frustrated.
参考答案
A.1-5
DDACB
B.6-10
ACDCB
C.11-15
DAABC
D.16-20
BADCA
E.21-25
ACDCD