中小学教育资源及组卷应用平台
上外版2020年高中英语必修二
Unit
1
NATURE
Period
2
Digging
in(Comprehension
and
Vocabulary
Focus)教学设计
课题
Digging
in
(Comprehension
and
Vocabulary
Focus)
单元
Unit
1
学科
English
年级
Senior
Grade
1
教材分析
In
this
period,
first
we
dig
in
our
understanding
of
Reading
A.
Second,
we
practise
the
key
vocabulary.
教学目标与核心素养
1.
Knowledge
objectives:
deepening
students’
understanding
of
the
moral
lesson
of
the
text;
practising
using
key
words
and
phrases;
introducing
antonym;2.
Skill
objectives:
grasp
of
the
story
gist;
usage
of
key
vocabulary
3.
Emotional
objectives:
love
of
nature;
protecting
creatures
varieties
4.
Thinking
quality
objectives:
think
critically
重点
Focus
on
deeper
understanding
of
the
text,
including
some
particular
sentences;
practice
of
key
words
and
phrases
难点
Paraphrase
“Nature
couldn’t
be
rushed.”
Using
Antonyms
to
complete
a
passage;
教学过程
教学环节
教师活动
学生活动
设计意图
复习与导入
1.
asking
students
to
match
the
pictures
with
the
proper
words
2.
encouraging
students
to
write
out
the
synonyms
近义词
3.
reviewing
the
story
by
doing
picture-story-telling
1.
telling
the
names
of
the
pictures;2.
picking
out
the
synonyms;3.
repeating
story-telling
picture
by
picuture;
1.
reviewing
the
vocabulary
on
topic
of
nature
and
creatures
2.
leading
in
the
concept
of
synonym
3.
reviewing
the
gist
of
the
story
讲授新课
PPT
5
presents
Exercise
I.
Arranges
the
sentences
in
the
right
order
according
to
the
story.1
The
king
had
gardens
as
beautiful
as
paradise.2.
The
king
had
the
tree
–
the
only
thing
he
disliked
in
the
garden
–
cut
down.
3
The
king
realized
that
there
were
no
more
living
creatures
in
his
garden.
4
The
king
sent
for
advisors,
but
none
of
them
was
able
to
explain
the
mystery.
5
A
young
man
came
with
an
explanation
and
a
solution.
6
The
king
was
full
of
regrets.
He
wanted
to
restore
the
beauty
of
his
garden,
but
it
would
take
many
years.
PPT
6-10
present
Exercise
II.
1.
Why
did
the
king
order
his
men
to
cut
down
the
huge
tree
in
his
gardens?
Because
it
was
old
and
dry,
and
the
king
disliked
it.
2.
What
was
soon
missing
from
the
king’s
gardens?
What
had
caused
the
problem?
Soon
all
the
living
creatures
disappeared
from
the
king’s
gardens.
The
removal
of
the
old
dry
tree
caused
the
problem.
3.
How
long
did
it
probably
take
for
the
beauty
of
the
gardens
to
be
recreated
on
the
young
man’s
property?
It
probably
took
more
than
twenty
years
for
the
beauty
of
the
gardens
to
be
recreated
on
the
young
man’s
land.
4.
What
does
the
sentence
“Nature
couldn’t
be
rushed”
(line
61)
mean?
Explain
it
in
your
own
words.
Nature
has
it
own
laws.
We
human
beings
couldn’t
push
it
and
disobey
the
natural
law.
5.
What
lesson
have
you
learnt
from
the
story?
We
understand
that
man
should
live
in
harmony
with
nature.
We
should
protect
nature
and
its
varieties,
and
stop
destroying
its
balance.
All
these
questions
and
answers
cover
up
all
the
main
message
of
the
story.PPT
11-12
present
Exercise
III.
Making
a
persuasion
dialogue
between
the
King
and
his
advisor
needs
to
be
very
careful
with
social
status
and
the
language
style
–
formal
and
respect.King:
The
old
tree
is
withered
and
dry.
It
shall
be
replaced
by
a
fountain.
Advisor
:
Your
Majesty!
Allow
me
to
raise
my
objection.
King:
Speak
out
your
reason.
Advisor:
Thank
you,
your
Majesty!
Everything
in
nature
is
connected.The
old
dry
tree
is
the
bed
of
moths,
which
in
spring
wake
up
and
become
the
food
of
birds,
which
in
turn
become
the
food
of
big
animals.
This
is
the
food
chain
in
nature.
King:
Carry
on.
Advisor:
Yes,
Your
Majesty!
Cutting
down
the
old
tree
leads
to
the
disappearance
of
moths,
which
in
turn
leads
to
the
disappearance
of
birds,
then
disappearance
of
big
animals.
Finally,
all
creatures
in
the
garden
will
be
missing.
The
royal
garden
will
be
a
dead
garden.King:
My
garden
shall
never
be
a
dead
garden.
You
have
your
point.
I
will
reconsider
it.
Advisor:
Thank
you,
Your
Majesty.
Long
live
the
king!
Long
live
the
royal
garden.
PPT
13
begins
the
“Vocabulary
Focus”.
PPT
13-17
present
Exercise
I
on
key
vocabulary
of
Reading
A.
show
up
出现break
into
突然爆发（大哭/大笑）former
以前的explanation
解释send
for
派人去找represent
代表balance
平衡destroy
破坏replace
代替in
turn
轮到；依次Practice
on
key
vocabulary
may
facilitate
memory
of
them.PPT
18,
19,
20,
21
present
the
concept
of
“antonym”
and
relevant
exercises.(1)
Examples
are
given
here
forstudents
to
guess
the
meaning
the
words
in
bold.used:
被使用
preserved:
被保存active
积极的
passive
消极的simple简单的
complex复杂的similar熟悉的
unknown不知道的(2
)
Exercise
II
of
antonyms.
1.
liked
–
disliked2.
failed
–
succeeded3.
flourished
–
withered4.
punished
–rewards
PPT
22-24
present
Exercise
IV
of
Vocabulary
Focus.
In
this
exercise,
students
are
demanded
both
higher
reading
skills
and
antonym
knowledge.In
the
beginning,
teachers
shall
give
no
cues.
Students
are
give
a
time
limit
–
no
more
than
15
minutes.1.
well
–
poorly;
2.
hate
–
like3.
with
–
without;
4.
create
–
destroy5.
appear
–
disappear;
6.
benefit
–
harm7.
similar
–
unknown;
8.
certain
–
uncertain;
PPT
25-28
present
“Quiz
Time”(1)
delicate(2)
insects(3)
fool(4)
species(5)
imbalance(6)
flurished(7)
sent
for(8)
solution(9)
particular(10)
amongstAll
the
ten
words
are
from
Reading
A.
Quiz
Time
is
again
an
exercise
on
key
vocabulary.In
the
following
“Questions
and
Answers”,
teachers
give
detailed
explanations
on
words
and
phrases,
which
are
extentions
of
the
vocabulary
knowledge
of
Reading
A.PPT
29
is
the
summary
of
what
we
have
learnt
today,
√
Reviewing
the
story
of
Reading
A√
Digging
in
the
comprehension
of
the
fable
story√
Dialogue
Time
–
practising
persuation
by
using
the
moral
lesson
√
Focus
on
vocabulary
–
practising
the
key
words
and
phrases
√
Antonym
–
definition
and
exercises
on
antonyms
√
Quiz
Time
–
an
extra
exercise
on
vocabulary
PPT
30,
Home
work
for
today.
Recite
these
antonyms.
(1)
Let’s
do
it;
(2)
Dialogue
Time(3)
Vocabulary
Focus
(4)
Antonym(5)
QuizAll
these
activities
can
be
carried
out
individually,
in
pair
work
or
group
work.In
Exercise
I,
students
may
look
through
the
text
of
Reading
A
and
quickly
find
the
answersStudents
may
find
Exercise
II
a
bit
hard.
They
have
to
organize
their
thoughts
while
using
the
new
words
and
phrases
to
answer
questionsStudents
are
encouraged
to
do
pair
work
or
have
a
discussion
in
finding
answers
to
the
questions.In
“Dialoge
Time”,(1)
Students
shall
first
notice
social
status
and
its
effects
on
language
style.
(2)
Students
shall
carefully
choose
their
words
and
phrases
suitable
for
their
respective
social
status.
(3)
Persuasion
part
shall
be
well-organized.(4)
Acting
it
out
requires
students
to
perform
their
parts,
particularly
their
intonations
and
pronunciations.Students
shall
be
given
enough
time
to
practice
before
they
give
a
show
to
the
class.In
Exercise
I
of
Vocabulary
Focus,
(1)
Students
are
given
time
to
think
about
the
answer.
(2)
Students
are
allowed
to
refer
to
the
text.Students
are
given
time
to
consult
dictionaries
or
have
a
discussion.In
Exercise
IV
of
Vocabulary
Focus,
students
shall
practise
using
antonyms.In
Quiz
Time,
Students
shall
take
notes
as
many
as
possible
after
they
hear
teacher’s
explanation
to
the
keys.
It’s
a
good
chance
for
students
to
enlarge
their
vocabulary.In
Summary,
students
shall
be
able
to
answer
questions
concerning
the
important
and
difficult
points
of
Period
Two,
for
example,
paraphrase
“Nature
couldn’t
be
rushed”.
Exercise
I
is
desgined
to
conduct
more
text
exposures
to
students.“Answer
the
Questions”
are
designed
to
dig
in
comprehension
of
the
text.Exercises
III
is
designed
for
the
purpose
of
using
language
so
that
students’
skills
may
be
improved
in
terms
of
choices
of
vocabulary
and
sentence
varieties.Exercise
I
of
Vocabulary
Focus
is
designed
to
review
the
key
words
and
phrases
of
Reading
A.The
concept
of
antonym
is
presented
to
students
for
the
purpose
of
enlarging
students’
vocabulary.Exercise
IV
of
Vocabulary
Focus
is
designed
again
to
practise
both
reading
skills
and
antonyms.Quiz
Time
is
an
extra
exercise
designed
to
pratise
key
words
and
phrases
studied
in
Period
Two.Summary
is
designed
to
give
a
checklist
of
the
important
knowledge
and
tasks
we
have
studied
and
completed
in
Period
Two.
课堂小结
1.
writing
synonyms2.
writing
antonyms2.
retelling
the
story3.
arranging
sentences
in
correct
order3.
answering
questions
of
Reading
A;4.
making
a
persuasion
dialogue
between
the
king
and
his
advisor;5.
vocabulary
focus6.
antonym
and
relevant
exercises;
1.
learning
synonyms2.
learning
antonyms
3.
reviewing
the
fable
story
and
its
moral
lessons;
4.
getting
a
deeper
understanding
of
the
text
of
Reading
A
by
answering
questions.5.
dialogue
making
and
performing
6.
doing
exercises
on
antonyms;
Exercises
make
up
most
parts
of
Period
Two.1.
Pactising
using
key
vocabulary
on
the
topic
of
man
and
nature;2.
Answering
questions
on
the
content
of
Reading
A
practises
students’
critical
thinking
and
sentence
making
skills;3.
Dialogue
making
and
performing
improve
students’
knowledge
on
language
style;
4.
Teaching
antonyms
by
doing
relevant
exercises
enlarges
students’
vocabulary5.
Quiz
is
an
extra
exercise
on
vocabulary.
板书
New
words
and
phrases:explain
–
explanantion
动词变名词replace
–
be
replaced
动词被动语态make
up
占据represent
代表in
turn
轮流地break
into
放生大哭/大笑particularly
尤其recreate
再创造as
long
as
只要show
up
出现，现身delicate
balancefierce
predatorsvulnerable
insectsthink
little
ofit’s
fool
to
do
sth.overgrowth
of
sth.any
species
on
the
chainimbalance
of
natureflourisha
biological
disastera
remarkable
quantity
of
…lead
to
=
causesend
forA
solution
stood
out.
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上外版高中英语必修二
Digging
in
(Comprehension
&Vocabulary
Focus)
Unit
1
NATURE
Period
2
Review
What
are
they?
Your
Majesty
paradise
nobleman
creatures
species
fountain
royal
insect
Review
What
are
the
synonyms
for
word
1
to
8?
idea
cheat
speak
gently
bring
back
way
out
fill
in
for
earlier
prize
damage
1.restore
6.
theory
4.
trick
3.
former
5.
replace
7.
whisper
2.
solution
8.
reward
cheat
idea
bring
back
way
out
earlier
fill
in
for
speak
gently
prize
word
pool
Lead
in
Let’s
retell
the
story.
Once
there
lived
a
king.
He
had
beautiful
gardens.
He
disliked
the
old
dry
tree
in
the
garden
and
cut
it
down.
Later,
all
creatures
disappeared
in
his
gardenn.
A
young
man
gave
an
explanation
that
the
old
tree
took
away
moths,
which
took
away
birds,
which
took
away
big
animals.
Everything
in
nature
is
connected.
The
king
regretted.
But
it
would
take
years
to
restore
the
beauty
of
his
gardens.
Nature
cannot
be
rushed.
5
2
4
3
1
Let’s
do
it.
I
Put
the
following
sentences
in
the
right
order
according
to
the
story.
The
king
was
full
of
regrets.
He
wanted
to
restore
the
beauty
of
his
garden,
but
it
would
take
many
years.
The
king
had
the
tree
–
the
only
thing
he
disliked
in
the
garden
–
cut
down.
The
king
realized
that
there
were
no
more
living
creatures
in
his
garden.
A
young
man
came
with
an
explanation
and
a
solution.
The
king
sent
for
advisors,
but
none
of
them
was
able
to
explain
the
mystery.
The
king
had
gardens
as
beautiful
as
paradise
6
Let’s
do
it.
II
Answer
the
questions.
1.
Why
did
the
king
order
his
men
to
cut
down
the
huge
tree
in
his
gardens?
Because
it
was
old
and
dry,
and
the
king
disliked
it.
Let’s
do
it.
II
Answer
the
questions.
2.
What
was
soon
missing
from
the
king’s
gardens?
What
had
caused
the
problem?
Soon
all
the
living
creatures
disappeared
from
the
king’s
gardens.
The
removal
of
the
old
dry
tree
caused
the
problem.
移除
Let’s
do
it.
II
Answer
the
questions.
3.
How
long
did
it
probably
take
for
the
beauty
of
the
gardens
to
be
recreated
on
the
young
man’s
property?
It
probably
took
more
than
twenty
years
for
the
beauty
of
the
gardens
to
be
recreated
on
the
young
man’s
land.
Let’s
do
it.
II
Answer
the
questions.
4.
What
does
the
sentence
“Nature
couldn’t
be
rushed”
(line
61)
mean?
Explain
it
in
your
own
words.
Nature
has
it
own
laws.
We
human
beings
couldn’t
push
it
and
disobey
the
natural
law.
Let’s
do
it.
II
Answer
the
questions.
5.
What
lesson
have
you
learnt
from
the
story?
We
understand
that
man
should
live
in
harmony
with
nature.
We
should
protect
nature
and
its
varieties,
and
stop
destroying
its
balance.
Dialogue
Time
King:
The
old
tree
is
withered
and
dry.
It
shall
be
replaced
by
a
fountain.
Advisor
:
Your
Majesty!
Allow
me
to
raise
my
objection.
III
Make
a
dialogue
between
the
king
and
his
advisor.
King:
Speak
out
your
reason.
Advisor:
Thank
you,
your
Majesty!
Everything
in
nature
is
connected.
The
old
dry
tree
is
the
bed
of
moths,
which
in
spring
wake
up
and
become
the
food
of
birds,
which
in
turn
become
the
food
of
big
animals.
This
is
the
food
chain
in
nature.
King:
Carry
on.
Dialogue
Time
III
Make
a
dialogue
between
the
king
and
his
advisor.
King:
My
garden
shall
never
be
a
dead
garden.
You
have
your
point.
I
will
reconsider
it.
Advisor:
Yes,
Your
Majesty!
Cutting
down
the
old
tree
leads
to
the
disappearance
of
moths,
which
in
turn
leads
to
the
disappearance
of
birds,
then
disappearance
of
big
animals.
Finally,
all
creatures
in
the
garden
will
be
missing.
The
royal
garden
will
be
a
dead
garden.
Advisor:
Thank
you,
Your
Majesty.
Long
live
the
king!
Long
live
the
royal
garden.
Vocabulary
Focus
I
Fill
in
the
blanks
with
the
proper
forms
of
the
given
words
and
phrases
to
complete
the
passage.
show
up
break
into
former
explanation
send
for
represent
balance
destroy
replace
in
turn
Vocabulary
Focus
I
am
the
tree
who
used
to
live
in
the
king’s
gardens.
Every
spring
thousandsof
moths
came
out
of
me.
The
moths
attracted
birds,
which
1_________
provided
food
for
bigger
animals.
Gradually
the
gardens
were
filled
with
life
and
color.
The
king
was
very
proud
of
his
gardens,
in
which
thousands
of
creatures
2_____________
hundreds
of
species
now
lived.
They
turn
the
garden
into
a
paradise
that
everyone
enjoyed.
show
up
break
into
former
explanation
send
for
represent
balance
destroy
replace
in
turn
representing
in
turn
Vocabulary
Focus
I
was
old,
withered
and
dry,
and
it
turned
out
that
I
was
the
only
thing
in
the
gardens
that
the
king
disliked.
Then
one
day,
the
king
3
__________
and
decided
he
could
stand
me
no
more.
He
had
me
cut
down
and
4
______
with
elaborate
fountains.
But
to
his
surprise,
all
the
animals
living
in
the
gardens
were
gone
in
time.
The
king
5
__________
advisors,
but
none
of
them
came
up
with
a
solution.
show
up
break
into
former
explanation
send
for
represent
balance
destroy
replace
in
turn
replaced
showed
up
sent
for
Vocabulary
Focus
Many
years
passed
before
a
young
man
presented
himself
to
the
king.
Though
everyone
else
6
__________
laughter
when
he
pointed
out
that
it
was
the
“moth
poo”
that
played
a
key
role
in
keeping
life
balanced
and
healthy
in
the
gardens,
the
king
took
his
7
___________
seriously.
show
up
break
into
former
explanation
send
for
represent
balance
destroy
replace
in
turn
explanation
broke
into
Vocabulary
Focus
The
king
wanted
to
recreated
the
8
__________
beauty
of
his
gardens.
However,
it
would
take
many
years
to
restore
the
9
__________
of
nature,
for
I
was
delicate
–
easy
to
10
___________
and
so
was
the
balance
of
nature.
show
up
break
into
former
explanation
send
for
represent
balance
destroy
replace
in
turn
balance
former
destroy
Antonym
An
antonym
is
a
word
that
is
opposite
in
meaning
to
another
word.
For
example,
“big”
and
“small”
are
antonyms.
What
is
an
?
active
familiar
simple
used
What
are
the
antonyms
of
the
words
given
below
in
the
table?
antonym
Antonym
Guess
the
meaning
of
the
words
in
red
boxes.
(the
underlined
words
and
the
words
in
red
boxes
are
antonyms)
1.
People
have
different
views
about
how
we
treat
natural
resources.
Some
people
believe
that
the
wild
forests
should
be
___________.
Others
think
that
wild
forests
are
there
to
be
used
as
much
as
possible
to
keep
the
economy
running.
2.
Danny’s
father
said
the
map
was
simple,
but
when
Danny
looked
at
it,
he
saw
it
was
actually
quite
_____________.
preserved
complex
preserved:
protected,
kept
被保存
complex:
complicated
复杂
的
Antonym
1.
The
king
liked
his
garden,
but
___________
the
remains
of
an
old
tree
standing
in
the
middle.
2.
After
many
attempts,
the
king
still
failed
to
restore
his
gardens
to
their
former
splendour.
It
seemed
that
only
the
young
man
could
___________
in
doing
so.
succeeded
disliked
3.
There
trees
flourished
particularly
well
in
a
warm
and
wet
climate,
but
___________
in
dry
conditions.
withered
4.
Nature
is
fair.
She
________
those
who
break
her
laws
but
rewards
those
who
observe
them.
punishes
II
Fill
in
blanks
with
antonyms
of
the
underlined
words
Antonym
An
antonym
is
a
word
that
is
opposite
in
meaning
to
another
word.
For
example,
“big”
and
“small”
are
antonyms.
What
is
an
antonym?
active
familiar
simple
used
What
are
the
antonyms
of
the
words
given
below
in
the
table?
passive
unkown
complex
preserved
Antonym
IV
Read
the
passage
and
fill
in
each
blank
with
an
antonym
of
a
word
from
the
box.
create
similar
benefit
certain
with
poorly
hate
appear
Antonym
create
similar
benefit
certain
with
poorly
hate
appear
An
environment
works
(1)
well
with
a
wide
varieties
of
species.
Here’s
an
example:
green
sea
turtle
(2)
__________
eating
sea
grass
–
but
they
can’t
hang
out
in
one
spot
for
long
because
tiger
sharks
in
the
sea
hunt
for
sea
turtles.
(3)
________
tiger
sharks,
sea
turtles
would
eat
all
the
best
sea
grass,
(4)
_______
the
home
for
all
the
other
animals
that
depend
on
it.
If
one
species
–
turtles,
sharks
or
sea
grass
–
(5)
________,
other
plants
and
animals
that
are
connected
to
the
species
could
become
extinct
too.
Losing
just
one
species
can
(6)
_________
many
others.
like
Without
disappear
destroy
harm
Antonym
create
similar
benefit
certain
with
poorly
hate
appear
There
are
possibly
billions
of
(7)
__________species
of
plants,
animals,
bacterial
and
other
living
things
–
but
we
have
only
documented
about
two
million
of
them.
Many
of
these
know
and
unknown
species
have
(8)________
futures
forever.
We
can
keep
the
Earth
safe
and
the
whole
ecosystem
healthy
by
working
to
preserve
all
of
its
components.
unknown
uncertain
Nature
is
like
a
big
garden
with
a
very
1
balance
of
life
circles.
Every
creature
in
it
plays
its
role,
from
the
fierce
predators
like
tigers
and
lions,
to
the
vulnerable
2
like
moths.
It
is
___3___
to
think
little
of
any
creatures
in
nature.
The
overgrowth
of
any
____4__
on
the
chain
might
cause
___5___
of
nature.
Quiz
Time
Fill
in
each
blank
with
a
proper
word
chosen
from
the
box.
Each
word
can
be
used
only
once.
Note
that
there
is
one
word
more
than
you
need.
delicate
sent
for
broke
into
species
particular
solution
fool
insects
amongst
imbalance
flourished
delicate
insects
fool
species
imbalance
Historically
in
Australia,
rabbits
___6_______
and
caused
a
biological
disaster.
The
great
amount
of
rabbits
fed
on
a
remarkable
quantity
of
grass
daily,
which
led
to
the
disappearance
of
a
great
many
grass
lands
very
soon.
Finally,
farmers
__7____
scientists.
A
__8_____
stood
out
by
spreading
a
___9_____
virus
___10___
rabbits,
which
successfully
killed
90%
rabbits.
The
rest
10%
survived.
Now
the
war
between
man
and
rabbits
is
still
on
in
Australia.
Quiz
Time
delicate
sent
for
species
particular
solution
fool
insects
amongst
imbalance
flourished
flourished
sent
for
amongst
solution
particular
break
into
Questions
and
Answers
delicate:
weak;
fragile
脆弱的
a
delicate
balance
脆弱的平衡
2.
fierce:
凶猛的；vulnerable:
弱小的
predator:
猛兽；猛禽
think
little
of:
看不起；轻视
fool
=
foolish
愚蠢的
It’s
fool
to
do
sth.
做……很愚蠢
overgrowth:
过度增长；过度繁殖
cause
imbalance
of…
导致……不平衡
Questions
and
Answers
5.
flourish:
grow
healthily
and
strong
茁壮成长
If
something
flourishes
in
nature,
it
increases
rapidly.
a
biological
disaster:
生态灾害
6.
lead
to
=
cause
导致
a
remarkable
quantity
of
…
数量明显巨大的……
a
great
many
许多
7.
send
for
sb.:
派人去请(找)某人过来；召唤某人过来
send
for
a
doctore
去叫医生
send
out:
发射；发出
8.
stand
out:
脱颖而出;
particular
+
ly
=
particularly
spread
a
particular
virus
amongst
rabbits
在兔子中传播一致特殊的病毒
Summary
What
have
we
learnt
today?
√
Reviewing
the
story
of
Reading
A
√
Digging
in
the
comprehension
of
the
fable
story
√
Dialogue
Time
–
practising
persuation
by
using
the
moral
lesson
and
the
vocabulary
√
Focus
on
vocabulary
–
practising
the
key
words
and
phrases
√
Antonym
–
definition
and
exercises
on
antonyms
√
Quiz
Time
–
an
extra
exercise
on
vocabulary
Homework
former
present
preserved
used
with
without
simple
complex
benefit
harm
familiar
unknown
native
foreign
appear
disappear
rare
common
connected
disconnected
destroy
create
balance
imbalance
fierce
vulnerable
possible
impossible
Recite
the
following
antonyms.
谢谢
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