解密09情态动词2021年中考英语二轮复习
（解析版）
1．情态动词的基本用法
2．情态动词表“推测”的用法
1.
【2020
?北京市】—________
you
give
me
a
hand?
I
can't
move
the
box
by
myself.
—No
problem.
A.
Could
B.
Should
C.
Must
D.
Need
【答案】A
【解析】考查情态动词。——你能帮我一下吗？我自己搬不动这个箱子。——没问题。could能，should应该，must必须，need需要。根据I
can't
move
the
box
by
myself可知，我自己搬不动这个箱子，因此请求别人帮助，Could
you
do
sth？你能做某事吗？表示委婉地请求。故选A。
2.【2020河北省】4.
you
smell
something
burning?
Go
and
see
what's
happening.
A.
Can
B.
May
C.
Must
D.
Need
【答案】A
【解析】考查情态动词。句意：你能闻到烧焦的东西吗？
去看看发生了什么。Can能；May可以，与第二人称连用通常表祝福；Must必须；Need需要。根据空后“you
smell
something
burning你闻到烧焦的东西”可知，此处是说“能”can。“你能闻到烧焦的东西吗”符合句意。故选A。
3.【2020湖北襄阳】36.—Must
the
children
get
up
at
six
tomorrow
morning?
—
No,
they
.Let
them
have
a
good
sleep
on
weekends.
A.
can’t
B.
needn’t
C.
mustn’t
D.
may
not
【答案】
B
【解析】考察情态动词之问答。Must引导的一般疑问句的否定回答一般用needn't回答。May引导的一般疑问句的否定回答用mustn't。
Can引导的一般疑问句否定回答用can't。
故选B项。
【2020湖北省咸宁】10.—Mum,
it’s
too
hot.
___________I
swim
in
the
lake
with
my
friends?
—No,
you
___________.
That’s
too
dangerous!
A.
Could;
mustn’t
B.
Need;
couldn’t
C.
Must;
needn’t
D.
Should;
can’t
【答案】A
【解析】考查情态动词辨析。句意：——妈妈，太热了，我能和我的朋友们在湖里游泳吗？——不，你不能去，那太危险了。could可以；mustn’t禁止，不可以；need需要；couldn’t不能；must必须；needn’t不需要；should应该；can’t不能。根据问句中“I
swim
in
the
lake
with
my
friends”可知，此处使用could，表示“请求允许”，即：我能和我的朋友们在湖里游泳吗？根据答句中“That’s
too
dangerous!”可知，在湖里游泳太危险了，所以此处使用mustn’t，表示“禁止”，即：你不能去。故选A。
4.【2020湖北省宜昌】6.—Listen!
Linda
is
playing
the
erhu
in
the
next
room.
—It____________
not
be
Linda.
She
has
gone
to
Shanghai
to
visit
her
uncle.
A.
can
B.
must
C.
need
D.
shall
【答案】A
【解析】考查情态动词。句意：——听，琳达正在隔壁房间拉二胡。——不可能是琳达，她去上海拜访她叔叔去了。can能够，可能；must必须，一定；need需要；shall将。根据“She
has
gone
to
Shanghai
to
visit
her
uncle”可知此处表示否定的推测，此处用can
not表示“不可能”。故选A。
5.【2020江苏无锡】5.You
________
be
able
to
control
all
the
things
that
happen
to
you,
but
you
can
decide
not
to
be
reduced
by
them.
A.
need
not
B.
may
not
C.
must
not
D.
should
not
【答案】B
【解析】考查情态动词辨析。句意：你可能无法控制发生在你身上的所有事情，但你可以决定不被它们拖累。need
not不需要；may
not可能不；must
not禁止，不能；should
not不应该。根据句中“but
you
can
decide
not
to
be
reduced
by
them”可知，此处使用may
not，表示推测，意为“你可能无法控制发生在你身上的所有事情，但你可以决定不被它们拖累”。故选B。
6.【2020江苏扬州】10.From
the
top
of
the
Autumn
Hill
people________
enjoy
the
fullest
sight
of
Ge
Garden.
A.
have
to
B.
need
C.
should
D.
can
【答案】D
【解析】考查情态动词。句意：从秋山顶上，人们可以欣赏到个园的全貌。have
to
不得不；need
需要；should
应该；can
可以。根据语境，此处指在山顶，人们“可以”欣赏到全景。故选D。
7.【2020天津】28.
I
be
late,
so
don’t
wait
for
me
to
start
the
meeting.
A.
mustn’t
B.
needn’t
C.
need
D.
may
【答案】D
【解析】考查情态动词。A禁止B不必C需要D可以，可能。句意:我可能会迟到，所以不用等我开会。
8.【2020上海】40.According
to
the
traffic
law，children
under
12________ride
bicycles
on
the
road．
A.
won't
B.
wouldn't
C.
needn't
D.
mustn't
【答案】D
【解析】考查情态动词的用法。句意：根据交通法，12岁以下的儿童不允许在路上骑自行车。won't不将会；wouldn't不将会；needn't不必；mustn't不允许。根据children
under
12"12岁以下的儿童"可知，"不允许"在路上骑自行车。用mustn't。故选D。
9.【2020山东日照】3.Children
________
be
told
not
to
swim
alone
in
the
river.
A.
can
B.
may
C.
must
D.
might
【答案】C
【解析】考查情态动词辨析。句意：必须告诉孩子们不要一个人在河里游泳。can能够；may可能；must必须；might可能。分析句意可知，孩子们必须被告诉不要一个人在河里游泳，故此处应用情态动词must。故选C。
10.【2020福建泉州】10.—May
I
watch
TV,
Dad?
—When
your
homework
is
finished,
you
________.
A.
would
B.
can
C.
must
【答案】B
【解析】考查情态动词辨析。句意：——爸爸，我能看电视吗？——当你的家庭作业完成后，你可以看。would表示想要，can表示可以，must表示必须。根据句意做完作业就可以看可知为肯定回答，肯定回答用情态动词can，故选B。
11.【2020江苏南通】11.—The
article
says
that
one’s
personality
depends
on
his
animal
sign.
—You
_______
read
it
for
fun,
but
don’t
believe
in
that.
A.
can
B.
must
C.
shouldn’t
D.
needn’t
【答案】A
【解析】考查情态动词。句意：——文章说一个人的性格取决于他的生肖。——你可以为了好玩而读，但不要相信这一点。can可以；must必须；shouldn’t不应该；needn’t没有必要。根据句意可知此处是指“可以为了好玩而读”，故选A。
12.【2020
?贵州省安顺市】With
the
help
of
Air
Classroom,
students
________
keep
learning
even
with
schools
closed.
A.
can
B.
must
C.
should
【答案】A
【解析】句意：在空中教室的帮助下，即使学校关闭，学生也可以继续学习。考查情态动词。can可以，表能力；must必须，表必须；should应该，表建议。根据上文With
the
help
of
Air
Classroom可知，此处指的是即使学校关闭，学生也可以继续学习。A选项符合句意，故选A。
13.【2020
?贵州黔东南州】—Is
that
Li
Ming
over
there?
—It
________be
him.
He
has
gone
to
Zhenyuan
for
the
Dragon
Boat
Festival.
A.
must
B.
mustn't
C.
can
D.
can't
【答案】D
【解析】句意：——在那边的那个人是李明吗?——不可能是他。他到镇远过端午节去了。
考查情态动词。must必须、一定；mustn't不必；can能、能够；can't不可能。根据He
has
gone
to
Zhenyuan
for
the
Dragon
Boat
Festival.可知他到镇远过端午节去了，所以不可能是他，表示“不可能”用can’t；故答案选D。
14.【2020
?黔西南州】There
is
a
knock
at
the
door.
It
________my
mom.
It’s
time
for
her
to
be
back
home.
A.
may
be
B.
may
not
be
C.
must
be
D.
mustn’t
be
【答案】C
【解析】句意：有人敲门，一定是妈妈．
该是她回家的时候了。考查情态动词。may
be
可能是；may
not
be可能不是；must
be一定是；mustn’t
be一定不是。由题干的最后一句可知，说话人猜测敲门人的把握很大，因此只有must
be
符合本题意思，故答案选C。
15.【2020
?贵州铜仁市】—How
delicious
the
meal
is!
Did
Kangkang’s
mother
cook
it?
—It________
be
her.
These
days
she
has
been
in
a
poor
village
to
help
the
people
there.
A.
can’t
B.
won’t
C.
mustn’t
D.
needn’t
【答案】A
【解析】考查情态动词表推测。句意：—这顿饭真好吃！康康的妈妈做的吗？
—不可能是她。这些天她一直在一个贫穷的村庄帮助那里的人们。can't
be不可能是；won't=will
not将不会；mustn't一定不要，禁止；needn't没必要。根据句子“These
days
she
has
been
in
a
poor
village
to
help
the
people
there.”可推测这个人一定不是Kangkang's
mother.根据can't
be“一定不是”。故选A。
16.
【2020江苏扬州】10.From
the
top
of
the
Autumn
Hill
people________
enjoy
the
fullest
sight
of
Ge
Garden.
A.
have
to
B.
need
C.
should
D.
can
【答案】D
【解析】考查情态动词。句意：从秋山顶上，人们可以欣赏到个园的全貌。have
to
不得不；need
需要；should
应该；can
可以。根据语境，此处指在山顶，人们“可以”欣赏到全景。故选D。
17.【2020
?黑龙江哈尔滨市】—Whose
magazine
is
this?
—It
________
be
Nancy's.
Look!
Her
name
is
on
its
cover
(封面).
A.
must
B.
can't
C.
mustn't
【答案】A
【解析】考查情态动词辨析。句意：——这是谁的杂志？——一定是南希的。看，她的名字在封面上。must一定，表示肯定推测；can’t不可能，表示否定推测；mustn’t禁止。根据“Look!
Her
name
is
on
its
cover
(封面)”可知，这里是肯定推测，故选A。
18.【2020
?黑龙江省龙东地区】—Mum,
________
I
do
my
homework
tonight?
—No,
you
________.
But
you
must
finish
it
before
Sunday.
A.
need;
mustn’t
B.
must;
needn’t
C.
must;
mustn’t
【答案】B
【解析】考查情态动词辨析。句意：——妈妈，今天晚上我必须做我的家庭作业吗？——不，你不需要，但是你必须在星期日之前完成它。need需要；mustn’t禁止；must必须；needn’t不需要。根据答句部分no可知，问句是一般疑问句，must可以引导一般疑问句，肯定回答用must，否定回答用needn’t；第一空使用must，表示“今天晚上我必须做我的家庭作业吗？”第二空使用needn’t，是否定回答，表示“不需要”。故选B。
19.【2020
?江苏省苏州市】—
Mum,
why
do
I
have
to
wash
hands
so
many
times
a
day?
—
For
your
health,
you
______
be
too
careful.
A.
can’t
B.
shouldn’t
C.
mustn’t
D.
needn’t
【答案】A
【解析】考查情态动词辨析。句意：——妈妈，为什么我一天必须洗手这么多次？——为了你的健康，你再小心也不为过。can’t不能；shouldn’t不应该；mustn’t不允许；needn’t不必。根据For
your
health及所给选词，可知，为了你的健康，你再怎么小心也不为过，固定搭配：can’t
too表示“再……也不为过”，所以空格处填can’t。故选A。
20.【2020
?山东滨州市】—On
my
way
to
the
bookstore,
I
saw
Mary
hanging
out
with
her
friends.
—It
________be
her.
She
has
gone
to
Beijing.
A.
can't
B.
mustn't
C.
might
D.
could
【答案】A
【解析】考查情态动词辨析。句意：——在我去书店的路上，我看见玛丽和她的朋友们在一起。——不可能是她。她去北京了。can't不可能；mustn't禁止；might可能，表推测；could能，表能力。分析语意可知，此处表示可能性，根据“She
has
gone
to
Beijing.”可知，不可能是玛丽，表否定推测。故选A。
21.【2020
?四川省成都市】—Look!
People
outside
are
wearing
thick
coats.
—The
weather________
be
very
cold.
A.
might
B.
must
C.
can't
【答案】B
【解析】考查情态动词。句意：——看！外面的人正穿着厚厚的大衣。——天气一定非常冷。might可能，表示没有把握的推测；must一定，表示没有把握的推测；can’t不可能，表示有把握的推测。根据People
outside
are
wearing
thick
coats.可知，有把握推测外面的天气非常冷。故选B。
22.【2020
?凉山州】---
Is
that
Mary
over
there?
---
It
___________be
her.
She
has
gone
to
Kunming.
A.
may
B.
must
C.
can't
D.
mustn't
【答案】C
【解析】考查情态动词表推测。句意：——那边的是玛丽吗？——不可能是她。她去昆明了。may也许，可能；must一定；can't不可能；mustn't禁止。根据“She
has
gone
to
Kunming.
她去昆明了”，可知应该是不可能是玛丽，故选C。
23.【2020
?新疆维吾尔自治区(建设兵团)】My
classmate
is
jumping
so
far!
I________
believe
my
eyes.
A.
shouldn't
B.
needn't
C.
mustn't
D.
can't
【答案】D
【解析】考查情态动词。句意：我的同学跳得这么远。我不能相信自己的眼睛。shouldn't不应该；can’t不能；mustn’t禁止；needn’t不需要。根据句意“我的同学跳得这么远”可知应该是“我不能相信自己的眼睛”。故选D。
24.【2020
?乐山】—____________
we
leave
the
library
before
5
o'clock?
—No,
you
needn't.
You
can
stay
here
until
5:30.
A.
Must
B.
May
C.
Can
【答案】A
【解析】考查情态动词。句意：——我们必须在五点钟之前离开图书馆么？——不，你没必要。你可以在这儿待到五点半。must必须；may可能；can能够，可以。根据“No,
you
needn't.
You
can
stay
here
until
5:30”可知问句表达的是“是不是必须在五点钟之前离开图书馆”，用情态动词must提问，否定回答用needn't表示没有必要。故选A。
25.They
________have
arrived
at
lunchtime
but
their
flight
was
put
off.
A.
will
B.
can
C.
must
D.
should
【答案】D
【解析】考查情态动词。句意：他们本应该在午餐时间到达，但他们的航班推迟了。
will
将要；can
能，可以；must
必须；should
应该。根据but
their
flight
was
put
off，可知是转折关系，因此前一句应是“本应该到达”，但是航班推迟了，用should
have
done结构，表示本应该做某事却未做。故选D。
(1)情态动词表推测。表示推测的情态动词：对现在或将来情况推测，用情态动词+do／be／be
doing…；表示肯定推测的情态动词按可能性大小依次为must，should／ought
to，may，might，could否定推测，常用can’t／couldn’t，译为“根本不可能”、“想必不会”，表示推测的语气非常肯定may
not，might
not或could
not译为“可能不”、“也许不”，表示推测的语气不很肯定。
(2)can，could表达推测时，一般用于疑问句和否定句中；can用于肯定句中表示一种理论上的可能性，并不牵涉是否真的会发生，在这种用法中can只能与动词原形连用；could用于肯定句中，语气比may／might更弱。
1.【2020广西柳州】31.
—Must
I
finish
my
homework
now,
Dad?
—Yes,
you
_____________.
A.
may
B.
need
C.
must
【答案】C
【解析】考查情态动词。句意：﹣﹣爸爸，我现在必须完成作业吗？﹣﹣是的，你必须．
may可以、可能．need需要．must必须．Must开头的一般疑问句，肯定回答用Yes，主语+must。故选C。
2.【2020湖南怀化】4.—Where's
Jane?
—I'm
not
sure.
She
______
in
the
library.
A.
might
be
B.
must
be
C.
can't
be
【答案】A
【解析】考查情态动词。句意：——Jane在哪里？——我不确定。她可能在图书馆。
might
be可能是，表示推测时可能性不是很大；must
be一定是，表示十分肯定的推测；can't
be不可能是，表示否定推测。根据句意，结合I'm
not
sure.
可知说话者的语气不太肯定，所以might
be符合题意，故答案选A。
3.【2020江苏连云港】6.If
we
don’t
protect
nature,
some
wildlife___________
die
out
in
the
future.
A.
need
B.
may
C.
can’t
D.
shouldn’t
【答案】B
【解析】考查情态动词。句意：如果我们不保护自然，一些野生动物将来可能会灭绝。根据句意可知，空处表示肯定推测；结合选项可知，选项里表肯定推测的情态动词只有may，可能会灭绝may
die
out符合语境。故选B。
4.【2020江苏南京】5.By
the
time
she
was
eight,
Linda________
read
English
and
French.
A.
could
B.
must
C.
need
D.
may
【答案】A
【解析】考查情态动词。句意：到琳达八岁的时候，她会读英语和法语。根据“By
the
time
she
was
eight”可知表示的是过去的动作，“读英语和法语”是一种能力，此处表达的是“能够”，用could。故选A。
5.【2020江苏泰州】13.—In
China,
many
students
feel
stressed
because
of
too
much
homework.
—Don’t
worry.
Our
government
has
realized
this
problem.
I’m
sure
there
________
be
good
news
for
them
soon.
A.
can
B.
must
C.
should
D.
need
【答案】B
【解析】考查情态动词辨析。句意：——在中国，很多学生因为太多作业而感到压力很大。——不要担心。我们的政府已经意识到了这个问题。我相信很快就会有好消息给他们。根据句中“I’m
sure…”表示我确信……可知，说话人对此非常有把握，must语气最强，符合语境。故选B。
6.
—Whose
toy
car
is
this?
—I
think
it
________
be
David's.
He
was
the
only
little
kid
at
the
picnic.
A．may
B．could
C．can
D．must
【答案】D
【解析】考查情态动词表推测用法。句意：——这是谁的玩具车？——我想一定是大卫的。他是野餐时唯一的小孩。may可能；could可能；can能够，可能；must一定。根据“He
was
the
only
little
kid
at
the
picnic他是野餐时唯一的小孩”可知，此处推测玩具车“一定”是大卫的，用must。故选D。
7.【2020青海省】6.—Lily
is
intelligent
and
hard-working,
she
________
do
well
in
the
singing
competition.
—Sure.
She
was
born
to
be
a
singer.
A.
should
B.
might
C.
can’t
【答案】A
【解析】考查情态动词。句意：——莉莉聪明又勤奋，她应该在歌唱比赛中取得好成绩。——当然。她天生是个歌唱家。根据答句“Sure.
She
was
born
to
be
a
singer.”讲到Lily是天生的歌唱家，可知此处表示肯定的推测，用should而不用might。故选A。
8.【2020贵州安顺】12.With
the
help
of
Air
Classroom,
students
________
keep
learning
even
with
schools
closed.
A.
can
B.
must
C.
should
【答案】A
【解析】考查情态动词。句意：在空中教室的帮助下，即使学校关闭，学生也可以继续学习。根据上文With
the
help
of
Air
Classroom可知，此处指的是即使学校关闭，学生也可以继续学习。A选项符合句意，故选A。
9.
—Jack
must
be
in
his
office,
I
think.
—No,
he
be
in
the
office.
He
flew
to
Canada
this
morning.
A.
needn't
B.
shouldn't
C.
can't
D.
mustn't
【答案】C
【解析】考查情态动词。句意：——我想杰克一定在他的办公室里。——不，他不可能在办公室里。他今天早晨飞往加拿大了。根据下文He
flew
to
Canada
this
morning.他今天早晨飞往加拿大了，可以判断他不可能在办公室里，表示否定推测，应用can't“不可能”，故答案选C。
10．—Look
at
the
man
standing
at
the
school
gate.
Is
he
your
math
teacher
Mr.
Brown?
—No,
it
__________
be
him.
He
has
gone
to
Chengdu
on
business.
A．needn’t
B．mustn’t
C．can’t
D．shouldn’t
【答案】C
【解析】考查情态动词。句意：——看站在学校门口的那个人，他是你的数学老师布朗先生吗？——不，不可能是他。他去成都出差了。needn’t不需要；mustn’t禁止；can’t
不可能；shouldn't不应该；根据回答中“He
has
gone
to
Chengdu
on
business.”可知，这里说的是“不可能是布朗先生”，英语中否定的推测用can't，表示“不可能”，故选C。
解密中考
考点解密
考法解密
分层练习
17解密09情态动词2021年中考英语二轮复习
（原卷版）
1．情态动词的基本用法
2．情态动词表“推测”的用法
1.
【2020
?北京市】—________
you
give
me
a
hand?
I
can't
move
the
box
by
myself.
—No
problem.
A.
Could
B.
Should
C.
Must
D.
Need
2.【2020河北省】4.
you
smell
something
burning?
Go
and
see
what's
happening.
A.
Can
B.
May
C.
Must
D.
Need
3.【2020湖北襄阳】36.—Must
the
children
get
up
at
six
tomorrow
morning?
—
No,
they
.Let
them
have
a
good
sleep
on
weekends.
A.
can’t
B.
needn’t
C.
mustn’t
D.
may
not
【2020湖北省咸宁】10.—Mum,
it’s
too
hot.
___________I
swim
in
the
lake
with
my
friends?
—No,
you
___________.
That’s
too
dangerous!
A.
Could;
mustn’t
B.
Need;
couldn’t
C.
Must;
needn’t
D.
Should;
can’t
4.【2020湖北省宜昌】6.—Listen!
Linda
is
playing
the
erhu
in
the
next
room.
—It____________
not
be
Linda.
She
has
gone
to
Shanghai
to
visit
her
uncle.
A.
can
B.
must
C.
need
D.
shall
5.【2020江苏无锡】5.You
________
be
able
to
control
all
the
things
that
happen
to
you,
but
you
can
decide
not
to
be
reduced
by
them.
A.
need
not
B.
may
not
C.
must
not
D.
should
not
6.【2020江苏扬州】10.From
the
top
of
the
Autumn
Hill
people________
enjoy
the
fullest
sight
of
Ge
Garden.
A.
have
to
B.
need
C.
should
D.
can
7.【2020天津】28.
I
be
late,
so
don’t
wait
for
me
to
start
the
meeting.
A.
mustn’t
B.
needn’t
C.
need
D.
may
8.【2020上海】40.According
to
the
traffic
law，children
under
12________ride
bicycles
on
the
road．
A.
won't
B.
wouldn't
C.
needn't
D.
mustn't
9.【2020山东日照】3.Children
________
be
told
not
to
swim
alone
in
the
river.
A.
can
B.
may
C.
must
D.
might
10.【2020福建泉州】10.—May
I
watch
TV,
Dad?
—When
your
homework
is
finished,
you
________.
A.
would
B.
can
C.
must
11.【2020江苏南通】11.—The
article
says
that
one’s
personality
depends
on
his
animal
sign.
—You
_______
read
it
for
fun,
but
don’t
believe
in
that.
A.
can
B.
must
C.
shouldn’t
D.
needn’t
12.【2020
?贵州省安顺市】With
the
help
of
Air
Classroom,
students
________
keep
learning
even
with
schools
closed.
A.
can
B.
must
C.
should
13.【2020
?贵州黔东南州】—Is
that
Li
Ming
over
there?
—It
________be
him.
He
has
gone
to
Zhenyuan
for
the
Dragon
Boat
Festival.
A.
must
B.
mustn't
C.
can
D.
can't
14.【2020
?黔西南州】There
is
a
knock
at
the
door.
It
________my
mom.
It’s
time
for
her
to
be
back
home.
A.
may
be
B.
may
not
be
C.
must
be
D.
mustn’t
be
15.【2020
?贵州铜仁市】—How
delicious
the
meal
is!
Did
Kangkang’s
mother
cook
it?
—It________
be
her.
These
days
she
has
been
in
a
poor
village
to
help
the
people
there.
A.
can’t
B.
won’t
C.
mustn’t
D.
needn’t
16.
【2020江苏扬州】10.From
the
top
of
the
Autumn
Hill
people________
enjoy
the
fullest
sight
of
Ge
Garden.
A.
have
to
B.
need
C.
should
D.
can
17.【2020
?黑龙江哈尔滨市】—Whose
magazine
is
this?
—It
________
be
Nancy's.
Look!
Her
name
is
on
its
cover
(封面).
A.
must
B.
can't
C.
mustn't
18.【2020
?黑龙江省龙东地区】—Mum,
________
I
do
my
homework
tonight?
—No,
you
________.
But
you
must
finish
it
before
Sunday.
A.
need;
mustn’t
B.
must;
needn’t
C.
must;
mustn’t
第二空使用needn’t，是否定回答，表示“不需要”。故选B。
19.【2020
?江苏省苏州市】—
Mum,
why
do
I
have
to
wash
hands
so
many
times
a
day?
—
For
your
health,
you
______
be
too
careful.
A.
can’t
B.
shouldn’t
C.
mustn’t
D.
needn’t
20.【2020
?山东滨州市】—On
my
way
to
the
bookstore,
I
saw
Mary
hanging
out
with
her
friends.
—It
________be
her.
She
has
gone
to
Beijing.
A.
can't
B.
mustn't
C.
might
D.
could
21.【2020
?四川省成都市】—Look!
People
outside
are
wearing
thick
coats.
—The
weather________
be
very
cold.
A.
might
B.
must
C.
can't
22.【2020
?凉山州】---
Is
that
Mary
over
there?
---
It
___________be
her.
She
has
gone
to
Kunming.
A.
may
B.
must
C.
can't
D.
mustn't
23.【2020
?新疆维吾尔自治区(建设兵团)】My
classmate
is
jumping
so
far!
I________
believe
my
eyes.
A.
shouldn't
B.
needn't
C.
mustn't
D.
can't
24.【2020
?乐山】—____________
we
leave
the
library
before
5
o'clock?
—No,
you
needn't.
You
can
stay
here
until
5:30.
A.
Must
B.
May
C.
Can
25.They
________have
arrived
at
lunchtime
but
their
flight
was
put
off.
A.
will
B.
can
C.
must
D.
should
(1)情态动词表推测。表示推测的情态动词：对现在或将来情况推测，用情态动词+do／be／be
doing…；表示肯定推测的情态动词按可能性大小依次为must，should／ought
to，may，might，could否定推测，常用can’t／couldn’t，译为“根本不可能”、“想必不会”，表示推测的语气非常肯定may
not，might
not或could
not译为“可能不”、“也许不”，表示推测的语气不很肯定。
(2)can，could表达推测时，一般用于疑问句和否定句中；can用于肯定句中表示一种理论上的可能性，并不牵涉是否真的会发生，在这种用法中can只能与动词原形连用；could用于肯定句中，语气比may／might更弱。
1.【2020广西柳州】31.
—Must
I
finish
my
homework
now,
Dad?
—Yes,
you
_____________.
A.
may
B.
need
C.
must
2.【2020湖南怀化】4.—Where's
Jane?
—I'm
not
sure.
She
______
in
the
library.
A.
might
be
B.
must
be
C.
can't
be
3.【2020江苏连云港】6.If
we
don’t
protect
nature,
some
wildlife___________
die
out
in
the
future.
A.
need
B.
may
C.
can’t
D.
shouldn’t
4.【2020江苏南京】5.By
the
time
she
was
eight,
Linda________
read
English
and
French.
A.
could
B.
must
C.
need
D.
may
5.【2020江苏泰州】13.—In
China,
many
students
feel
stressed
because
of
too
much
homework.
—Don’t
worry.
Our
government
has
realized
this
problem.
I’m
sure
there
________
be
good
news
for
them
soon.
A.
can
B.
must
C.
should
D.
need
【
6.
—Whose
toy
car
is
this?
—I
think
it
________
be
David's.
He
was
the
only
little
kid
at
the
picnic.
A．may
B．could
C．can
D．must
7.【2020青海省】6.—Lily
is
intelligent
and
hard-working,
she
________
do
well
in
the
singing
competition.
—Sure.
She
was
born
to
be
a
singer.
A.
should
B.
might
C.
can’t
8.【2020贵州安顺】12.With
the
help
of
Air
Classroom,
students
________
keep
learning
even
with
schools
closed.
A.
can
B.
must
C.
should
9.
—Jack
must
be
in
his
office,
I
think.
—No,
he
be
in
the
office.
He
flew
to
Canada
this
morning.
A.
needn't
B.
shouldn't
C.
can't
D.
mustn't
10．—Look
at
the
man
standing
at
the
school
gate.
Is
he
your
math
teacher
Mr.
Brown?
—No,
it
__________
be
him.
He
has
gone
to
Chengdu
on
business.
A．needn’t
B．mustn’t
C．can’t
D．shouldn’t
解密中考
考点解密
考法解密
分层练习
17
