Unit
4
单元练习
一.请快速拼写下列单词
1.________
n.程序；步骤；手续
2._________-
adj.精神的；思想的
3.__________
n.交通工具；车辆
4.________-
n.宇宙；天地万物
5._______
vt.&n.发射；发起；上市
6.________
adj.持续存在的；不断发展的
7._________vt.回收利用；再利用
8.________
adj.足够的；充足的
9.________
adj.肤浅的；浅的
10.________
n.模式；图案；模范
1.procedure
2.
mental3.vehicle
4.universe
5.launch
6.ongoing
7.
recycle
8.
sufficient
9.shallow
10.
pattern
二．单句语法填空
1.
These
difficulties
only
make
us
more
_________________（determine)
not
to
give
up
before
our
dream
comes
true.
2.
He
sounded
a
little____________
(disappoint)
when
he
said
he
didn't
pass
the
final
examination.
3.
Although
she
had
some
health
problems,she
carried
on
________（work)
hard
late
into
the
night.
4.
The
price
of
new
homes
in
that
area
goes
______
and
most
people
cannot
afford
to
buy
a
house
there.
5.
The
requirement
that
students
______________
(learn)
to
protect
themselves
is
successfully
carried
out
in
most
schools.
6.
The
teacher
did
not
punish
me
for
cheating.
Instead,he
gave
me
_____second
chance.
7.
From
today
on
I
will
insist
on
writing
diaries
in
English,
____the
hope
of
improving
my
English.
1.
determined
2.
disappointed
3.
working
4.
up
5.
(should)
learn
6.
a
7.
in
三.完形填空
Confidence
has
nothing
to
do
with
your
figure.
I
learned
this
recently.
Every
day
I'd
look
in
the
mirror,
hate
what
I
see,
and
repeat
the
words
1 ,
“I
am
beautiful.”
Sometimes
I'd
even
grit
my
teeth
(咬紧牙关)
to
cry
the
words
out.
But
I
2 saying
it,
no
matter
what.?
It
was
at
the
3 of
my
friend
that
I
began
this
habit.
He
said
he
wanted
to
be
friends
with
me
because
of
my
4 and
gentle
character.
Besides,
he
also
regarded
me
as
a
beautiful
girl
and
it
5 him
that
I
couldn't
see
it
in
myself.?
For
a
long
time,
I
had
6 that
my
weight
made
me
a
second-rate
person.
Years
of
being
fat
and
years
of
being
7 had
caused
me
to
build
a
cocoon(茧)
around
myself.
I
8 thought
that
if
I
stayed
quiet,
maybe
I
would
be
safe.
I
put
myself
in
layers
of
fear,
my
heart
breaking
a
little
more
with
each
wedding
invitation.
I
9 hoping
for
my
true
love,
believing
I
wasn't
good
enough.?
It
wasn't
until
I
met
him
that
I
was
determined
to
be
happy
on
my
own
and
things
began
to
10 .
He
pointed
out
my
good
personalities
and
excellent
qualities
and
made
me
repeat
them
out
loud.
I
laughed
at
first
because
it
felt
11 ,
but
I
kept
at
it
every
day.?
Then
one
day,
a(n)
12 thing
happened.
Staring
into
the
mirror,
I
realized
with
a
shock
that
I
believed
it!
He
wasn't
13 and
it
was
true—I'm
beautiful!
The
layers
of
my
cocoon
suddenly
disappeared.
And
nowadays,
I
learn
to
love
myself
and
keep
14 no
matter
what
my
dress
size
is.
Indeed,
confidence
comes
from
the
15 .?
( )1.A.hopefully
B.unusually
C.excitedly
D.unwillingly
( )2.A.stopped
B.regretted
C.continued
D.considered
( )3.A.request
B.thought
C.cost
D.invitation
( )4.A.wealth
B.kindness
C.success
D.coldness
( )5.A.delighted
B.embarrassed
C.worried
D.frightened
( )6.A.believed
B.doubted
C.forgot
D.forgave
( )7.A.looked
up
B.stared
at
C.shouted
at
D.laughed
at
( )8.A.similarly
B.mistakenly
C.suddenly
D.intelligently
( )9.A.stopped
B.enjoyed
C.risked
D.preferred
( )10.A.disappear
B.increase
C.worsen
D.change
( )11.A.helpless
B.dangerous
C.silly
D.meaningless
( )12.A.interesting
B.amazing
C.terrifying
D.challenging
( )13.A.lying
B.listening
C.dreaming
D.waiting
( )14.A.curious
B.quiet
C.confident
D.healthy
( )15.A.society
B.inside
C.family
D.experience
1.D 2.C 3.A 4.B 5.C 6.A
7.D 8.B 9.A 10.D 11.C 12.B 13.A14.C 15.B
四．语法填空
Sally
is
a
good
student.She
does
well
in
all
her
1.?
?
?
?
?
??(subject)．You
must
wonder
2.?
?
?
?
?
??she
can
study
so
well.Let
me
tell
you
something
about
her
good
study
habits.
First，Sally
spends
two
hours
3.?
?
?
?
?
??(study)
after
school
every
day.And
she
always
studies
from
seven
to
nine
on
schedule.Sally
is
a
very
4.?
?
?
?
?
??(determine)
girl，so
nothing
can
stop
her
doing
that.
Second，if
Sally
wants
to
start
studying，first
she
5.?
?
?
?
?
??(put)
everything
that
has
nothing
to
do
with
her
studying
aside，like
the
cell
phone.And
6.?
?
?
?
?
??(actual)
there
are
only
books
left
on
her
desk.
Third，Sally
never
7.?
?
?
?
?
??(leave)
her
problems
till
next
day.When
she
meets
some
difficult
problems
and
she
can’t
work
them
out，she
will
make
8.?
?
?
?
?
??request
to
others
for
help.She
doesn’t
wait
9.?
?
?
?
?
??(do)
them
next
day.
What
do
you
think
10.?
?
?
?
?
??Sally’s
study
habits?
You
can
have
a
try.I
hope
they
will
be
helpful
to
you.
答案：1.
subjects
2.
how
3.
studying
4.
determined
5.
will
put
6.
actually
7.
leaves
8.
a
9.
to
do
10.
ofUnit基础达标训练
Ⅰ.单词拼写：根据汉语或首字母提示完成单词拼写，使其符合语境。
1.To
many
people,
technology
means
computers,
hand?held
devices,
or
________
(交通工具)
that
travel
to
distant
planets.
2．An
apple
falls
down
because
of
________
(重力)．
3．Each
human
being
has
to
die,
but
________
(人类)
goes
on
world
without
end.
4．The
astronauts
trained
for
years
in
how
to
use
their
________
(宇宙飞船)．
5．Where
have
all
those
boats
gone
in
the
________
(码头)?
6．The
Earth
is
only
one
of
the
numerous
planets
in
the
u________.
7．They
put
a
weather
satellite
into
the
o________
around
the
earth.
8．You
can
book
at
your
local
travel
a________.
9．Before
the
traffic
s________
turns
to
green
light,
please
don't
cross
the
street.
10．The
ceremony
was
t________
live
by
satellite
to
over
fifty
countries.
1.
vehicles
2.gravity
3.
mankind
4.
spacecrafts
5.
dock
6.
universe
7.
orbit
8.
agency
9.
signal
10.
transmitted
二、单句语法填空
1.
She
was
once
famously
described
as
the
most
_________
(intelligence)
woman
in
Japan.
2.
They
are
_________
(determine)
to
find
out
the
cause
of
the
accident.
3.
They
were
deeply
_________
(disappoint)
at
the
result
of
the
game.?
4.
She
had
a
strong
desire
_________
(go)
back
to
her
home
country
before
she
died.
5.
It
was
the
first
time
that
she
had
lived
_________
(independent).
6.
We
came
to
the
island
_________
the
hope
of
finding
a
simpler
way
of
life.
7.
A
decision
was
finally
made
after
some
heated
_________
(argue).
8.
The
earthquake
has
resulted
_________
many
thousands
of
deaths.
9.
People
who
exercise
_________
(regular)
are
less
likely
to
feel
nervous.
10.
They
went
early
so
as
_________
(get)
good
seats.
1.
intelligent?
2.determined?
3.disappointed?
4.to
go?
5.independently?
6.in?
7.argument?
8.in?
9.regularly?
10.to
get
三．阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项.选项中有两项
为多余选项。
How
to
Reduce
Gift
Wrap
Waste
Wrapping
paper
may
have
“paper”
in
its
name,
but
that
doesn’t
automatically
mean
it
can
be
recycled.
36
Try
these
suggestions
for
cutting
down
the
amount
of
wrapping
paper
you
throw
away.
Reuse
what
you
have.
37
It’s
estimated
that
the
U.S.
produces
4.6
million
pounds
of
wrapping
paper
annually,
and
2.3
million
pounds
of
that
stays
in
people’s
homes,
awaiting
reuse.
Use
different
materials.
38
Select
basic
brown
thick
paper
that
can
be
made
up
with
a
bow,
ribbons,
leaves,
pinecones
or
markers.
Repurpose
newspapers,
old
posters
and
children’s
school
artworks
as
wrapping
paper.
There
are
plenty
of
other
eco-friendly
alternatives
to
wrapping
paper
that
are
just
delightful
and
celebratory.
39
Use
baskets,
fabric,
gift
boxes
or
bags,
tea
towels,
and
more
to
contain
and
display
your
presents.
Learn
the
Japanese
art
of
wrapping,
using
beautiful
knots(绳结)
to
fasten
colorful,
reusable
fabrics
in
attractive
ways.
This
way,
you’ll
have
no
wrapping
paper
waste
to
deal
with.
Ask
for
better
paper.
Shops
store
what
customers
want,
and
recyclability
should
be
a
top
priority,
so
let
that
be
known
when
you’re
out
shopping.
As
explained
by
Simon
Ellin,
CEO
of
the
Recycling
Association,
a
trade
body
that
represents
about
90
waste
management
companies
and
paper
merchants
in
the
United
Kingdom,
“It’s
a
campaign
we’ve
been
on
all
year
—
do
you
really
need
to
design
a
non-paper
wrapping
paper?
Make
paper
with
recycling
in
mind!”
40
A.
Try
zero
waste.
B.
Shop
with
that
in
mind,
too.
C.
You
don’t
have
to
choose
shining
paper
to
decorate
a
present.
D.
In
fact,
many
types
of
wrapping
paper
cannot
due
to
their
materials.
E.
When
wrapping
paper
is
extremely
thin,
it
has
few
good
quality
fibers
for
recycling.
F.
Wrapping
paper
can
be
used
many
times
if
care
is
taken
to
unwrap
it
without
tearing.
G.
Having
a
mix
of
recyclable
and
non-recyclable
papers
is
a
real
problem
for
companies.
答案
DFCAB
四．语法填空
Friendship
is
one
of
the
most
important
things
in
everyone’s
life.
__1__
is
very
difficult
to
find
a
better
definition(定义)
of
friendship.
A
true
friend
is
the
person
___2___
can
share
all
our
sadness
and
double
all
our
happiness.
In
time
of
trial(尝试)
,
he
or
she
is
always
at
our
side
to
give
us
his
or
her
help
and
comfort.
Knowing
how
___3___
(value)
friendship
is,
we
should
be
very
careful
with
our
choice
of
a
friend.
We
should
choose
those
people
with
a
good
character
___4___
our
friends,
but
we
must
try
to
avoid
___5___
(make)
friends
with
a
bad
man.
Besides,
we
should
forgive
their
mistakes
and
try
to
help
them
as
much
as
possile.
A
true
friend
can
always
___6___
(trust),
loved
and
respected.
If
you
tell
a
friend
your
secrets,
he
or
she
won’t
tell
___7___.
Friends
share
their
joys
and
sorrows.
They
help
each
other
when
they
are
___8___
trouble,
and
cheer
each
other
up
when
they
are
sad.
___9___
most
important
thing
is
that
a
friend
always
understands
you.
In
conclusion,
___10___
you
have
made
a
good
friend,
don’t
forget
him
or
her.
1.
It
2.
who/that
3.
valuable
4.
as
5.
making
6.
be
trusted
7.
others
8.
in
9.
The
10.
whenUnit
4单元习题精选
一、词性转换
1.
_________
adj.精神的；思想的→_________
adv.
精神上；智力上
2.
_________
adj.有智慧的；聪明的；有智力的→_________
n.
智力；聪明；智能
3.
_________
vt.查明；确定；决定→_________
adj.有决心的；意志坚定的→_________
n.
决心；决定
4.
_________
vt.
使失望→_________
adj.
失望的；沮丧的→_________
adj.
令人失望的→_________
n.失望
5.
_________
adj.
独立的；自立的→_________adv.独立地；自立地→_________
n.
独立；自主
6.
_________
n.地球；世界；地球仪→_________
adj.全球的；全世界的?
7.
_________
vt.&vi.论证；争辩；争论→_________n.争论；争吵；论点
8.
_________
vt.分析→_________
n.(对事物的)分析；分析结果
9.
_________
adj.
定期的；经常的；正常的→_________
adv.
经常；定期地
10.
_________
vt.
限制；限定→_________
adj.有限的→_________
n.
局限；限制
1.mental；mentally
?2.intelligent；intelligence
?3.determine；determined；determination
?4.disappoint；disappointed；disappointing；disappointment
?5.independent；independently；independence
?6.
globe；global
?7.
argue；argument
?8.analyze/analyse；analysis(pl.analyses)?
9.regular；regularly
?10.limit；limited；limitation
二、单句语法填空
1.The
heated
(argue)
excited
everyone
present
at
the
meeting.?
2. (globe)
warming
is
a
real
problem.?
3.I’m
really
curious
his
life
in
space.?
4.Exploring
space
has
already
made
difference
in
the
fight
against
world
hunger.?
5.As
a
result
the
weather,all
the
crops
grow
well.?
6.The
greatest
attention
at
present
is
Mars
because
it
is
closer
to
Earth.?
7.Exploring
space
provides
the
world
many
different
benefits.?
8.Luckily,there
is
a
student
acting
a
space
expert.?
1.argument 2.Global 3.about 4.a 5.of 6.on 7.with 8.as
三．完形填空
There’s
nothing
like
a
heartwarming
rescue
(营救)
story,
especially
when
it
involves
two
animals.
Africa
is
known
for
its
many
kinds
of
wild
animals,
so
spotting
a
wild
animal
isn’t____21____.
A
farmer
is
used
to
spotting
large
creatures.
One
day,
he
saw
something
usual.
Upon
a
closer
look,
it
became
____22____to
the
farmer
that
this
was
a
baby
giraffe.
Not
only
was
the
little
baby
all
on
its
own,
but
it
also____23____to
be
no
more
than
a
few
days
old.
It
seemed
that
it
needed
some____24____.Since
the
newborn
was
obviously
without
its____25____,the
farmer
knew
he
had
to
find
a
safe
place
for
the
baby.
The
closest
one
was
a
rhino
(犀牛)
health
recovery
center.____26____It
wasn’t
their
specialty
(专业),
the
center____27____to
take
care
of
the
baby
giraffe.
The
caretakers
couldn’t
turn
down
a(n)____28____
creature
There,
they____29____
the
baby
giraffe
jazz.
Apart
from
the
workers,
there
was
one
animal
who____30____to
leave
Jazz’s
side,
and
that
was
a
dog,
Hunter.
He
seemed
to
want
nothing
more
than
to____31____friendship
to
any
suffering
animals.
He
____32____
watched
over
Jazz
from
the
moment
the
baby
was____33____Hunter
appeared
hopeful
although
Jazz’s
____34____was
not
good.
The
dog
slowly____35____the
sleeping
giraffe,
doing
all
he
could
t____36____the
poor
creature
without
hurting
the
young
animal.
Several
days
later,
Jazz
clearly
appreciated
Hunter’s____37____,
because
before
long
he
was
beginning
to
get
closer
to
the
dog.
The
dog
selflessly
gave
his
friendship.
The
animals
were____38____species,
but
they____39____
to
become
friends.
Before
long,
Jazz
was
looking
like
any____40____baby
giraffe.
He
was
sitting
tall
at
his
best
friend’s
side.
Meanwhile,
Hunter
looked
happier
than
ever.
21.
A.
enjoyable
B.
fortunate
C.
uncommon
D.
awful
22.
A.
clear
B.
aggressive
C.
unfair
D.
informal
23.
A.
proved
B.
appeared
C.
attempted
D.
meant
24.
A.
comment
B.
motivation
C.
balance
D.
help
25.
A.
family
B.
freedom
C.
courtyard
D.
respect
26.
A.
Because
B.
Though
C.
Unless
D.
If
27.
A.
disliked
B.
forgot
C.
agreed
D.
demanded
28.
A.
helpless
B.
cautious
C.
outgoing
D.
friendly
29.
A.
created
B.
directed
C.
called
D.
handed
30.
A.
pretended
B.
failed
C.
determined
D.
refused
31.
A.
explain
B.
award
C.
offer
D.
apply
32.
A.
gently
B.
fluently
C.
eventually
D.
practically
33.
A.
given
away
B.
take
in
C.
picked
up
D.
put
off
34.
A.
condition
B.
incident
C.
birthplace
D.
injury
35.
A.
requested
B.
hired
C.
followed
D.
approached
36.
A.
defeat
B.
control
C.
care
for
D.
rely
on
37.
A.
honest
B.
patience
C.
belief
D.
evidence
38
A.
dangerous
B.
different
C.
familiar
D.
huge
39.
A.
struggled
B.
aimed
C.
decided
D.
managed
40.
A.
weak
B.
modest
C.
healthy
D.
funny
【答案】21.
C
22.
A
23.
B
24.
D
25.
A
26.
B
27.
C
28.
A
29.
C
30.
D
31.
C
32.
A
33.
B
34.
A
35.
D
36.
C
37.
B
38.
B
39.
D
40.
C
四．语法填空
The
story
is
mainly
about
a
retired
teacher
in
poor
health
1.?
?
?
?
?
??
received
a
thank
you
letter
from
one
of
his
successful
students.
What
a
2.?
?
?
?
?
??(move)
story!
It
reminds
me
of
my
favorite
teacher，Jeffrey，who
sets
a
wonderful
example
for
his
students
to
follow
through
the
rest
of
their
lives.And
for
me，Jeffrey
is
always
a
role
model
3.?
?
?
?
?
??whom
I
can
learn
a
lot.His
energetic
4.?
?
?
?
?
??(devote)
to
work
always
earns
him
respect
and
praise
from
both
his
colleagues
5.?
?
?
?
?
??students.I
feel
lucky
to
have
such
6.?
?
?
?
?
??excellent
instructor
who
didn’t
give
me
up
when
I
failed
so
many
times
in
English
test.Instead，he
7.?
?
?
?
?
??(patient)
cultivated(培养)
my
interest
in
English,
8.?
?
?
?
?
??(give)
me
timely
help
with
my
study，and
praised
me
for
my
small
progress.Little
by
little，I
felt
increasingly
confident
in
9.?
?
?
?
?
??(me)
and
showed
more
and
more
enthusiasm
in
English
learning.At
last，I
made
up
my
mind
10.?
?
?
?
?
??(become)
an
English
teacher
like
him.
答案：1.
who/that
2.
moving
3.
from
4.
devotion
5.
and
6.
an
7.
patiently
8.
gave
9.
myself
10.
to
becomeⅠ.单词拼写：根据汉语或首字母提示完成单词拼写，使其符合语境。
1.To
many
people,
technology
means
computers,
hand?held
devices,
or
________
(交通工具)
that
travel
to
distant
planets.
2．An
apple
falls
down
because
of
________
(重力)．
3．Each
human
being
has
to
die,
but
________
(人类)
goes
on
world
without
end.
4．The
astronauts
trained
for
years
in
how
to
use
their
________
(宇宙飞船)．
5．Where
have
all
those
boats
gone
in
the
________
(码头)?
6．The
Earth
is
only
one
of
the
numerous
planets
in
the
u________.
7．They
put
a
weather
satellite
into
the
o________
around
the
earth.
8．You
can
book
at
your
local
travel
a________.
9．Before
the
traffic
s________
turns
to
green
light,
please
don't
cross
the
street.
10．The
ceremony
was
t________
live
by
satellite
to
over
fifty
countries.
procedure
intelligent
?????
frontier
????
vehicle
???
5.
universe
6.
agency?
7.
determined???
8.
launched??
9.
disappointed
10.
desire
二
单句语法填空
1.
These
difficulties
only
make
us
more
_________________（determine)
not
to
give
up
before
our
dream
comes
true.
2.
He
sounded
a
little____________
(disappoint)
when
he
said
he
didn't
pass
the
final
examination.
3.
Although
she
had
some
health
problems,she
carried
on
________（work)
hard
late
into
the
night.
4.
The
price
of
new
homes
in
that
area
goes
______
and
most
people
cannot
afford
to
buy
a
house
there.
5.
The
requirement
that
students
______________
(learn)
to
protect
themselves
is
successfully
carried
out
in
most
schools.
6.
The
teacher
did
not
punish
me
for
cheating.
Instead,he
gave
me
_____second
chance.
7.
From
today
on
I
will
insist
on
writing
diaries
in
English,
____the
hope
of
improving
my
English.
8.
I
don't
have
anything
suitable
________（wear)
for
the
party.
9.
In
a
recent
interview,the
company's
CEO
said
that
they
had
worked
out
a
direct
solution______the
conflict
of
international
trade.
10.
China's
economy
plays
an
important
role
in
the__________（globe)
economy.
11.
I'm
sorry
to
say
that
I
can't
finish
the
work
within
the
__________（limit)
time.
12.
A
chimpanzee(黑猩猩）can't
win
an
________
(argue)
with
a
modern
man,but
it
can
tear
the
man
apart
like
a
rag
doll.
13.
Do
you
still
keep
in
touch
with
your
friends
______________（regular)
after
you
separated?
14.
Not
only
he
but
also
all
his
family
are
keen
________concerts.
1.
determined
2.
disappointed
3.
working
4.
up
5.
(should)
learn
6.
a
7.
in
8.
to
wear
9.
to
10.global
11.
limited
12.argument
13.regularly
14.
on
三.完成句子
1.
积极的思考和行动导致成功。(result
in)
Positive
thinking
and
action
________
________
________．
2.
这条河是那条河的四倍长。(倍数表达法)
The
river
is
________
________
________
________
________
that
one.
3.
父母应该给孩子提供良好的教育。(provide
sb
with
sth)
Parents
should
________
________
________
________
a
good
education.
4.
骑自行车是环保的交通方式。(动名词作主语)
________
________
________
________
an
environmentally
friendly
means
of
transport.
5.
接受还是拒绝这项工作取决于他。(whether
...
or
...)
It
depends
on
him
________
________
________
the
job
________
________
it.
6.
这些人很快就筋疲力尽了，食物也快吃完了。(run
out
of)
The
men
were
soon
exhausted
and
were
________
________
________
food.
答案 1.
result
in
success 2.
four
times
as
long
as/four
times
the
length
of 3.
provide
their
children
with 4.
Riding
a
bike
is 5.
whether
he
accepts or
refuses 6.
running
out
of
语法填空
Long
long
ago,human
beings
held
a
dream
that
one
day
they
could
leave
Earth
and
explore
space.
After
many
experiments,the
scientists
succeeded
1
_____making
rockets
that
could
escape
Earth's
gravity
and
the
2_____
(possible)
dream
came
true.
On
4
October
1957,the
Sputnik
1
satellite
3___________
(launch)
by
the
USSR
and
successfully
orbited
around
Earth.
On
20
July
1969,
American
astronaut
Neil
Armstrong
stepped
onto
the
moon,
4
________(say)
,
"That's
one
small
step
for
［a]
man,one
giant
leap
for
mankind.
"
Although
scientists
tried
to
make
sure
nothing
went
wrong,
some
accidents
still
happened,which
made
everyone
sad
and
disappointed.
But
the
desire
5__________
(explore)
the
universe
never
died.
6____example
of
the
ongoing
exploration
is
the
International
Space
Station.
China's
space
programme
started
later
than
those
of
Russia
and
the
US,
7
____
it
has
developed
very
fast.
In
2003,
China
sent
the
Shenzhou
5
spacecraft
into
space
8______________（independent)
.
Then
Shenzhou
6
and
7
completed
a
second
manned
orbit
and
the
first
Chinese
spacewalk,
9_________
(follow)
by
the
vehicle
Jade
Rabbit
being
sent
to
the
moon.
More
recently,
China
has
sent
Chang'e
4
to
explore
the
surface
of
the
far
side
of
the
moon
to
make
measurements
and
observations.
Europe,the
US,and
China
all
have
plans
to
further
explore10_________
(planet)
like
Mars
and
Jupiter.
Though
there
exist
many
difficulties,scientists
hope
that
future
discoveries
will
not
only
enable
us
to
understand
how
the
universe
began,
but
also
help
us
survive
well
into
the
future.
1.in.考查介词。succeed
in
doing
sth.
表示成功做成了某事，故填in.
2.impossible.考查形容词。空处修饰名词
dream,
应用形容词，且由语境可知，此处表示不可能（实现）的，故填impossible.
3.was
launched.考查时态和语态。由时间状语On
4
October
1957
可知，应用过去时，satellite
与
launch
之间为动宾关系，故填
was
launched.
4.saying.考查非谓语动词。分析句子结构可知，空处在句中作伴随状语，且与主语
American
astronaut
Neil
Armstrong之间为主谓关系，故用现在分词
saying.
5.to
explore.考查非谓语动词。由语境可知，此处表示探索宇宙的愿望从未消亡。空处作后置定语，说明
desire
的内容，故应用不定式to
explore.
6.
An.考查冠词。example
在此表示＂例子＂，
为可数名词，此处泛指一个例子，应用不定冠词，example
的发音以元音音素开头，故填An.
7.but.考查连词。由语境可知，空处前后之间为转折关系，故填but.
8.independently.考查副词。由语境可知，空处在句中作状语，修饰谓语sent,
表示＂独立地＂，
故填副词
independently.
9.followed.考查非谓语动词。分析句子结构可知，空处在句中作状语，与句子主语之间为动宾关系，故用过去分词。
10.planets.考查名词的数。planet
为可数名词，且由空后的
Mars
and
Jupiter
可知，此处应用复数形式。
