中小学教育资源及组卷应用平台
英语情态动词练习
1.How
beautiful
it
is
today!
You
______
take
your
umbrella
at
all.
A.
needn’t
B.
mustn’t
C.
can’t
D.
may
not
2.In
today’s
informat
(?http:?/??/?www.21cnjy.com?)ion
age,
the
loss
of
data
_________
always
result
in
serious
problems
for
a
company.21世纪教育网版权所有
A.
can
B.
need
C.
must
D.
should
3.I
regret
that
I
(?http:?/??/?www.21cnjy.com?)
waited
in
the
queue
for
a
long
time
to
buy
the
ticket
this
morning.
I
______
it
online.21教育网
A.
could
buy
B.
must
buy
C.
could
have
bought
D.
must
have
bought
4.Someone
____the
tap
on,
for
the
water
was
running
over
and
flooding
the
bathroom.21cnjy.com
A.
could
leave
B.
must
have
left
C.
might
leave
D.
should
have
left
5.—I
can’t
think
why
he
______
so
angry.
I
meant
no
offence.
—It’s
typical
of
him
to
be
sensitive.
A.
must
have
been
B.
should
have
been
C.
might
have
been
D.
can
have
been
6.Never
______
forget
that
poem
and
the
inspiration
______
provided
for
my
first
novel.21·cn·jy·com
A.
can
I;
wh
(?http:?/??/?www.21cnjy.com?)ich
B.
will
I;
that
C.
shall
I;
it
D.
must
I;
what
7.She
knew
she
was
wrong,
but
she
________
tell
him.2·1·c·n·j·y
A.
dare
not
to
B.
dare
C.
dares
not
D.
dared
not
8.---
I
can’t
think
why
he_____
so
angry.1
meant
no
offence.
---It’s
typical
of
him
to
be
sensitive.
A.
should
have
been
B.
must
have
been
C.
might
have
been
D.
can
have
been
9.—
Has
he
finished
his
homework?
—
He
______,
for
he
is
enjoying
his
favourite
album.【来源：21·世纪·教育·网】
A.
must
have
B.
can
have
C.
must
D.
can
10.Claire's
car
was
(?http:?/??/?www.21cnjy.com?)n't
there,
so
she
______
have
gone
to
her
mother's.
A.
would
B.
should
C.
can
D.
must
11.------Is
Professor
Smith
giving
the
speech
today?2-1-c-n-j-y
------It
______
be
him.
He
is
abroad
right
now.
A.
needn’t
B.
can’t
C.
wouldn’t
D.
mustn’t
12.---
I
went
to
t
(?http:?/??/?www.21cnjy.com?)he
ticket
office,
but
the
tickets
had
been
sold
out
already.
---
You
could
hav
(?http:?/??/?www.21cnjy.com?)e
yourself
an
unnecessary
trip
by
phoning
in
advance.21
cnjy
com
A．
prevented
B．
made
C．
enjoyed
D．
spared
13.—Why,
my
new
comp
(?http:?/??/?www.21cnjy.com?)uter
is
rubbish!
Five
hours
has
passed
and
it
still
hasn’t
finished
the
downloading.【来源：21cnj
y.co
m】
—Don’t
worry.
You
know,
sometimes
the
Internet
________
be
very
slow.【出处：21教育名师】
A．
can
B．
may
C．
should
D．
must
14.—
Will
it
take
me
long
to
get
to
the
Sunshine
Hotel?
—No,
it
______
take
you
long.
It’s
not
the
rush
hour
now.
A．
shouldn’t
B．
shan’t
C．
mustn’t
D．
needn’t
15.According
to
the
(?http:?/??/?www.21cnjy.com?)
school
rule,
no
child
be
allowed
out
of
the
school,
unless
accompanied
by
his
or
her
own
parents.www.21-cn-jy.com
A.
should
B.
must
C.
shall
D.
can
16.He
demanded
that
the
meeting
______
put
off.
A.
not
be
B.
should
not
C.
was
not
D.
would
not
be
17.I
______
have
watched
that
movie
—
it’ll
give
me
horrible
dreams.
A.
shouldn’t
B.
needn’t
C.
couldn’t
D.
mustn’t
18.Just
when
we
are
(?http:?/??/?www.21cnjy.com?)
going
to
have
a
holiday,
my
little
son
________
have
a
headache.21·世纪
教育网
A.
dare
B.
can
C.
may
D.
must
19.You
_____
somet
(?http:?/??/?www.21cnjy.com?)hing
great,
otherwise
you
wouldn't
have
got
the
promotion.www-2-1-cnjy-com
A.
should
do
B.
must
do
C.
should
have
done
D.
must
have
done
20.—You
look
very
pretty,
if
I
say
so.
—Thanks
a
lot
for
saying
that.
A.
must
B.
may
C.
will
D.
have
to
21世纪教育网
www.21cnjy.com
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21世纪教育网(www.21cnjy.com)中小学教育资源及组卷应用平台
英语情态动词练习
1.—Shall
I
inform
him
of
the
change
of
the
discussed
plan
right
away?
—I
am
afraid
you
_____,
in
case
he
comes
late
for
the
meeting.
A.
will
B.
must
C.
may
D.
can
答案及解析：B
句意：---我现在就把时间表的变
(?http:?/??/?www.21cnjy.com?)更告诉他好吗？---恐怕你必须这样，以防他开会迟到。will表示“愿意”，
must表示“一定，必定，必须
”；may表示“可能，可以”；can“能，可以”。分析选项可知B符合题意。
2.
—
Catherine,
I
have
cleaned
the
room
for
you.
—Thanks.
You
it.
I
could
manage
it
myself.
A.
needn’t
do
B.
needn’t
have
done
C.
mustn’t
do
D.
shouldn’t
have
done
答案及解析：B
考查情态动词+have
d
(?http:?/??/?www.21cnjy.com?)one的用法：句意：---Catherine,
我已经为你把房间打扫过了。--谢谢，你本不必打扫。我
自己能行。从第一句话知道是对过去的情况的说明，排除AC，needn’t
have
done本不必做…而做了，shouldn’t
have
done本不该做而做了。从句意看是选B。
3.—Will
it
take
me
long
to
get
to
the
Sunshine
Hotel?21世纪教育网版权所有
—No,
it
_______
take
you
long.
It’s
not
the
rush
hour
now.
A.
shouldn’t
B.
shan’t
C.
mustn’t
D.
needn’t
答案及解析：A
“去阳光酒店要花很长时间吗？
(?http:?/??/?www.21cnjy.com?)”“不，不会花很久。现在不是高峰期。”shouldn’t“不应该，不会”；shan’t多用于法律、规定；mustn’t不许；needn’t不必。故选A。2·1·c·n·j·y
4.If
you
want
to
im
(?http:?/??/?www.21cnjy.com?)prove
your
figure
and
health,
the
most
effective
thing
to
do
is
to
show
up
at
the
gym
every
time
you
________
be
there.
A.
can
B.
will
C.
may
D.
shall
答案及解析：A
句意：如果你想改善你的身材
(?http:?/??/?www.21cnjy.com?)和健康，最有效的方法就是每次能去健身房的时候都去。A.
can能；B.
will将，愿意；C.
may可以，能够；D.
shall会，将。此处指能去的时候就去，表示能够，故选A.
5.If
you
work
(?http:?/??/?www.21cnjy.com?)hard
and
finish
it
this
week,
you
________
have
Monday
free
next
week.www.21-cn-jy.com
A.
shall
B.
will
C.
would
D.
should
答案及解析：A
句意是：如果你这周努力完成，下周一你可以休息。选A。
6.Since
you
are
here
(?http:?/??/?www.21cnjy.com?)
already,
you
________
as
well
stay
here
and
enjoy
yourself.【来源：21·世纪·教育·网】
A.
can
B.
may
C.
should
D.
must
答案及解析：B
may/might
as
well
d
(?http:?/??/?www.21cnjy.com?)o
sth.
may
as
well
主要用于表示提议或劝告，意为“不妨”。如：
I
may
as
well
start
at
once.
我还不妨马上就动身。It’s
not
very
far,
so
we
may
[might]
as
well
go
on
foot.那地方不太远，所以我们还是走着去吧。句意：既然你已经来了,
你不妨留在这里尽情享受吧。故选B。21教育网
7.—She
looks
very
happy.
She
______
have
passed
the
exam.
—I
guess
so.
It’s
not
difficult
after
all.
A.
should
B.
could
C.
must
D.
might
答案及解析：C
“must
have+动词-ed形式”表示“
(?http:?/??/?www.21cnjy.com?)一定做了某事”,根据所提供的情景“She
looks
very
happy.”可判断出她一定通过了考试。“should
have+动词-ed形式”表示“本来应该做某事,而没有做”,常用于表示责备。“could
have+动词-ed形式”在肯定句型中,往往用作委婉地批评，表示本应该做什么,而没做，有时也用作猜测。“might
have+动词-ed形式”表示推测过去做过某事，“也许”发生了。www-2-1-cnjy-com
8.—Can
I
pay
the
bill
by
check?
—Sorry，sir．B
(?http:?/??/?www.21cnjy.com?)ut
it
is
the
management
rules
of
our
hotel
that
payment
_____
be
made
in
cash．21
cnjy
com
A.
shall
B.
need
C.
will
D.
can
答案及解析：A
句意：——我可以用信用卡付账吗？
(?http:?/??/?www.21cnjy.com?)——对不起，先生。用现金付账是我们旅馆的管理制度。A将；B需要；C将；D能够。根据内容可知此处是制度规定，而shall用在句中可以表示“按照规章制度规定的内容”，故答案选A。【来源：21cnj
y.co
m】
9.
—Must
I
turn
off
the
gas
after
cooking?
—Of
course.
You
never
be
careful
enough
with
that.
A.
must
B.
can
C.
may
D.
should
答案及解析：B
——在做饭以后我必须关掉煤气吗？——当然
(?http:?/??/?www.21cnjy.com?)。你越小心越好。“cannot/can
never
be
too...”是固定句型，意为“越……越好”或“再……也不过分”。故选B。2-1-c-n-j-y
10.
Although
passing
t
(?http:?/??/?www.21cnjy.com?)he
driving
test
________
be
difficult
now,
it’s
worth
the
efforts.【出处：21教育名师】
A.
need
B.
shall
C.
can
D.
should
答案及解析：C
A.
need需要；
(?http:?/??/?www.21cnjy.com?)B.
shall将要；
C.
can能够；
D.
should应该。句意：虽然现在通过驾驶考试是很困难的，但这是值得的。此处表示一种客观事实的可能，故选C。【版权所有：21教育】
11.
—Mom!
Jack
has
broken
a
cup.
—Doesn’t
matter.
Accidents
________
happen.
A.
should
B.
will
C.
must
D.
shallB
句意：--妈妈，杰克把杯子打坏了。--没关系。难免的。选B。
12.The
accide
(?http:?/??/?www.21cnjy.com?)nt
have
been
caused
by
a
dog
running
across
the
road,
but
we
don’t
know
for
sure.21教育名师原创作品
A.
might
B.
should
C.
will
D.
must
答案及解析：A
句意：事故可能是由一条横穿马
(?http:?/??/?www.21cnjy.com?)路的狗引起的，但我们不确定。分析句子可知，本句是对过去动作的推测的可能性不大。表对过去的推测有must(可能性大，“一定”)，might/may(可能性小，意为“可能，也许”)，这两词用于肯定句。对过去动作的推测要用情态动词+have
done
，故选A。21
cnjy
com
13.The
professor
(?http:?/??/?www.21cnjy.com?)
recommended
the
young
couple
_________
their
emotions.21·cn·jy·com
A.
do
not
hide
B.
not
hide
C.
mustn’t
hide
D.
couldn’t
hide
答案及解析：B。
recommend表示“建议、劝告”
(?http:?/??/?www.21cnjy.com?)时，通常用句型recommend
...that
+主语+should
(not)
+动词原形。此处should可以省略，这是一种虚拟语气。
14.Anyone
________
be
a
victim
of
road
accidents
if
he
doesn’t
observe
traffic
regulations.
A.
can
B.
must
C.
should
D.
shall
答案及解析：A
句意为：如果不遵守交通规则的话，任何人都可能成为道路交通事故的受害者。Can就可以表示可能，表示概率事件。21cnjy.com
15.Sixty
decades
o
(?http:?/??/?www.21cnjy.com?)n,
the
presenter
(Queen
Elizabeth
II)
has
evolved
somewhat,
as
has
the
technology
she
described.
Back
then,
who
_____
that
people
would
one
day
be
watching
this
on
laptops
and
mobile
phones,
as
some
of
you
are
today?
A.
must
have
imagined
B.
may
have
imagined
C.
would
have
imagined
D.
should
have
imagined
答案及解析：C
句意：六十年过去了，演讲者（伊丽莎白二
(?http:?/??/?www.21cnjy.com?)世）也像她所描述的技术那样，“升级”了一些。那时候，有谁能想象到，有一天人们会从笔记本电脑和手机上观看这则视频，就像今天你们中的一部分人这样？根据语境，此处表示与过去相反的虚拟语气，主句用would
have+过去分词。“must
have+过去分词”表示对过去的肯定性推测；“may
have+过去分词”表示对过去的推测；“should
have
done”表示本应该做某事而实际上没做。故选C。
16."Could
I
c
(?http:?/??/?www.21cnjy.com?)all
you
by
your
first
name?"
"Yes,you___."
A.will
B.could
C.may
D.might
答案及解析C
can
may
表示许可，（could是
(?http:?/??/?www.21cnjy.com?)can表示“能够，有能力做某事”时候的委婉语），所以could不可以，同时might既是may的过去时，也是may的委婉语，用might回答别人，在这里不礼貌
17John___
come
to
see
us
tonight,
but
he
isn't
very
sure
yet.
A.
?may???
B.?can???
C.?has
to???
D.?Must
答案及解析A
根据isn’t
very
sure不是非常确定，所有选择A,may表示有可能。
18.—Mom,
I’ve
been
s
(?http:?/??/?www.21cnjy.com?)tudying;
English
since
8
o’clock.??????I
go
out
and
play
with
Tom
for
a
while?21·世纪
教育网
—No,
I’m
afraid
not.
Besides,
it’s
raining
outside
now.
A.
Can’t???
B.
Wouldn’t
C.
May
not???
D.
Won’t
答案及解析A
考查情态动词。句意：--妈妈,我自从8点一直在学英语。我能出去和汤姆玩一会儿吗?--不,恐怕不行。此外，外面正在下雨。表示不能，故选A.
19.—Mom,
I’ve
(?http:?/??/?www.21cnjy.com?)been
studying;
English
since
8
o’clock.??????I
go
out
and
play
with
Tom
for
a
while?
—No,
I’m
afraid
not.
Besides,
it’s
raining
outside
now.
A.
Can’t???
B.
Wouldn’t
C.
May
not???
D.
Won’t
句意：--妈妈,我自从8点一直在学英语。我能出去和汤姆玩一会儿吗?--不,恐怕不行。此外，外面正在下雨。表示不能，故选A.
20.You?________?be
tired—you’ve
only
been
working
for
an
hour.
A.
must
not????????????????????????B.
won’t????????????????????????????????????????????????????????
C.
can’t???????????????????????????????D.
may
not
答案及解析C
考查情态动词。句中破折号后的内容对前一句进行解释说明：你只工作了一个小时,所以你不可能累的.表示否定推测时用can’t.?
21世纪教育网
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英语情态动词练习
1.How
beautiful
it
is
today!
You
______
take
your
umbrella
at
all.
A.
needn’t
B.
mustn’t
C.
can’t
D.
may
not
答案及解析：A
A.
needn’t
不必；B.
(?http:?/??/?www.21cnjy.com?)
mustn’t禁止；C.
can’t不可能；D.
may
not或许不会。句意：多好的天气啊!你根本不需要带伞。结合句意答案为A。
2.In
today’s
(?http:?/??/?www.21cnjy.com?)
information
age,
the
loss
of
data
_________
always
result
in
serious
problems
for
a
company.21世纪教育网版权所有
A.
can
B.
need
C.
must
D.
should
答案及解析：A
句意：在今天的信息时代，数据丢
(?http:?/??/?www.21cnjy.com?)失有时会对一个公司造成严重的问题。can可能；need需要；must必须，肯定；should应该，竟然。数据丢失造成严重问题是客观上会发生的情况，即“客观可能性”，故该空应用情态动词can，其余情态动词均没有该用法。故选A。
3.I
regret
that
I
(?http:?/??/?www.21cnjy.com?)waited
in
the
queue
for
a
long
time
to
buy
the
ticket
this
morning.
I
______
it
online.21教育网
A.
could
buy
B.
must
buy
C.
could
have
bought
D.
must
have
bought
答案及解析：C
句意：今天早上我排队等了很长时间才
(?http:?/??/?www.21cnjy.com?)买下这张票，我感到很后悔。我本来可以在网上买的。could
have
done表示过去本来可以有机会选择做某事，但实际上没有那样做，通常译为“本来可以”。故选C。
4.Someone
____the
tap
(?http:?/??/?www.21cnjy.com?)
on,
for
the
water
was
running
over
and
flooding
the
bathroom.21cnjy.com
A.
could
leave
B.
must
have
left
C.
might
leave
D.
should
have
left
答案及解析：B
句意：一定是有人没关水龙头
(?http:?/??/?www.21cnjy.com?)，因为水溢出来淹了浴室。must
have
done表示对过去是清有把握的坑定推测，意思是“一定是做某事了”，故选B。21·cn·jy·com
5.—I
can’t
think
why
he
______
so
angry.
I
meant
no
offence.
—It’s
typical
of
him
to
be
sensitive.
A.
must
have
been
B.
should
have
been
C.
might
have
been
D.
can
have
been
答案及解析：B
句意：——我想不出他为什么这么生气。我无
(?http:?/??/?www.21cnjy.com?)意冒犯。——敏感是他的特点。A.
must
have
been对过去事实肯定的推测；B.
should
have
been本应该做某事，而实际没有做；C.
might
have
been表示一种可能性，一种推测；D.
can
have
been表示推测，题干中表示“本应该做某事，而实际没有做”，故选B。21·世纪
教育网
6.Never
______
forget
that
poem
and
the
inspiration
______
provided
for
my
first
novel.www-2-1-cnjy-com
A.
can
I;
which
B.
will
I;
that
C.
shall
I;
it
D.
must
I;
what
答案及解析：C
句意：我永远不会忘记那首诗和它为
(?http:?/??/?www.21cnjy.com?)我的第一部小说提供的灵感。Can表示能够；will
表示将要；shall
用于第一人称，则表示决心；must
必须，故第一个空用shall。inspiration后面是定语从句，关系代词省略，定语从句还缺少主语the
poem，用it特指前面的that
poem，故选C。
7.She
knew
she
was
wrong,
but
she
________
tell
him.2-1-c-n-j-y
A.
dare
not
to
B.
dare
C.
dares
not
D.
dared
not
答案及解析：D
句意：她知道她错了，但她不敢告诉他。动词da
(?http:?/??/?www.21cnjy.com?)re既可以作实义动词也可以作情态动词，根据主句的动词knew是过去式，所以空格处也要用过去时，A、B选项形式错误，D选项为情态动词dare过去式dared。故选D。【来源：21·世纪·教育·网】
8.---
I
can’t
think
why
he_____
so
angry.1
meant
no
offence.
---It’s
typical
of
him
to
be
sensitive.
A.
should
have
been
B.
must
have
been
C.
might
have
been
D.
can
have
been
答案及解析：A
A.
should
hav
(?http:?/??/?www.21cnjy.com?)e
been本应该；B.
must
have
been表示对过去事情的肯定推测，译成“一定做过某事”；C.
might
have
been表示对过去事情的推测，可能性更小。多用于虚拟语气结构中。D.
can
have
been表示对过去行为的怀疑，用于疑问句，译成“可能做过……吗？。句意：—我认为他本不该这么生气，我并没有冒犯的意思。—敏感是他一个典型的特征。此处指我认为他不该生气，结果他生气了。用“本不该”，故选A.21
cnjy
com
9.—
Has
he
finished
his
homework?
—
He
______,
for
he
is
enjoying
his
favourite
album.【来源：21cnj
y.co
m】
A.
must
have
B.
can
have
C.
must
D.
can
答案及解析：A
句意：—他已经完成作业了吗？—
(?http:?/??/?www.21cnjy.com?)他肯定写完了，因为他正在欣赏最喜欢的专辑。根据句意可知，此处是表示对过去的肯定推测，must
have
done
sth.表示肯定做了某事。故选A。【版权所有：21教育】
10.Claire's
car
wasn
(?http:?/??/?www.21cnjy.com?)'t
there,
so
she
______
have
gone
to
her
mother's.
A.
would
B.
should
C.
can
D.
must
答案及解析：D
句意：克莱尔的车不在这里，因此她肯定
(?http:?/??/?www.21cnjy.com?)去她母亲那里了。根据前半句Claire's
car
wasn't
there可知，本句讲述过去的事情，因而是对过去的猜测，由于车不在，因此猜测比较肯定，故选D。
11.------Is
Professor
Smith
giving
the
speech
today?21教育名师原创作品
------It
______
be
him.
He
is
abroad
right
now.
A.
needn’t
B.
can’t
C.
wouldn’t
D.
mustn’t
答案及解析：B
句意：——史密斯教授今天
(?http:?/??/?www.21cnjy.com?)做演讲吗?——那是不可能的，他现在在国外。A.
needn't不必；B.
can't
不可能；C.
wouldn’t将不；D.
mustn't禁止。这里根据He
is
abroad
right
now.所以确定不可能是他，故选B。
12.---
I
went
to
the
(?http:?/??/?www.21cnjy.com?)ticket
office,
but
the
tickets
had
been
sold
out
already.
---
You
coul
(?http:?/??/?www.21cnjy.com?)d
have
yourself
an
unnecessary
trip
by
phoning
in
advance.21
cnjy
com
A．
prevented
B．
made
C．
enjoyed
D．
spared
答案及解析：D
A.
prevented阻止；B.
(?http:?/??/?www.21cnjy.com?)
made制造；C.
enjoyed喜爱；D.
spared抽出。句意：——我去了售票处，但是票已经卖完了。——你本可以提前打电话，避免不必要的旅行。结合句意可知答案为D。
13.—Why,
my
new
c
(?http:?/??/?www.21cnjy.com?)omputer
is
rubbish!
Five
hours
has
passed
and
it
still
hasn’t
finished
the
downloading.
—Don’t
worry.
You
know,
sometimes
the
Internet
________
be
very
slow.
A．
can
B．
may
C．
should
D．
must
答案及解析：A
情态动词can表推测，意为“可能”，
(?http:?/??/?www.21cnjy.com?)指理论上的可能性，即这种可能未必发生；may表示的可能性没有can大；should应该；must必须；must表肯定推测，意为“一定”。句意：要知道，有时候，网络会非常慢。故选A。
14.—
Will
it
take
me
long
to
get
to
the
Sunshine
Hotel?
—No,
it
______
take
you
long.
It’s
not
the
rush
hour
now.
A．
shouldn’t
B．
shan’t
C．
mustn’t
D．
needn’t
答案及解析：A
。“去阳光酒店要花很长时间吗？”“
(?http:?/??/?www.21cnjy.com?)不，不会花很久。现在不是高峰期。”shouldn’t“不应该，不会”；shan’t多用于法律、规定；mustn’t不许；needn’t不必。故选A。
15.According
to
(?http:?/??/?www.21cnjy.com?)the
school
rule,
no
child
be
allowed
out
of
the
school,
unless
accompanied
by
his
or
her
own
parents.
A.
should
B.
must
C.
shall
D.
can
答案及解析：C
句意：根据学校规定，除非
(?http:?/??/?www.21cnjy.com?)有亲生父母陪同，否则不得让任何儿童离开学校。A.should意为“按理说，应该，竟然”；
B.
must意为“必须，偏偏，非要”；C.
shall用于第二和第三人称的陈述句时，有“警告、命令、威胁、允诺”等；D.
can有“可能，可以”之意。分析语境可知，本句中含有命令或警告的意思，即如果不是亲生父母，谁也不得带走儿童，所以从语气来说，应该选C项。
16.He
demanded
that
the
meeting
______
put
off.
A.
not
be
B.
should
not
C.
was
not
D.
would
not
be
答案及解析：A
句意：他要求会议不要推迟。及物动词s
(?http:?/??/?www.21cnjy.com?)uggest
/
demand
/
insist
/
order
/
ask
(做”要求“解时)
/
require
---后面的宾语从句，要用虚拟语气，谓语用should
+动词原形，should
可以省略，本题正是省略了should。且此处the
meeting
和put
off之间是被动关系，故答案为A。
17.I
______
have
watched
that
movie
—
it’ll
give
me
horrible
dreams.
A.
shouldn’t
B.
needn’t
C.
couldn’t
D.
mustn’t
答案及解析：A
“我真不该看那个电影，它让我
(?http:?/??/?www.21cnjy.com?)做噩梦。”shouldn’t
have
done
本不应该做某事
needn’t
have
done
没有必要做但是做了
couldn’t
have
done不可能做了某事
没有mustn’t
have
done，答案A。
18.Just
when
we
(?http:?/??/?www.21cnjy.com?)
are
going
to
have
a
holiday,
my
little
son
________
have
a
headache.www.21-cn-jy.com
A.
dare
B.
can
C.
may
D.
must
答案及解析：D
句意：当我们要去度假的时候，我的小儿子偏偏头疼。此处是情态动词must的用法“偏偏，非要”，故选D。2·1·c·n·j·y
19.You
_____
somethi
(?http:?/??/?www.21cnjy.com?)ng
great,
otherwise
you
wouldn't
have
got
the
promotion.【出处：21教育名师】
A.
should
do
B.
must
do
C.
should
have
done
D.
must
have
done
答案及解析：D
句意：你一定做了什么了不起的事，否则你就得不到提升。must
have
done表示对过去事情有把握的肯定推测，故选D。
20.—You
look
very
pretty,
if
I
say
so.
—Thanks
a
lot
for
saying
that.
A.
must
B.
may
C.
will
D.
have
to
答案及解析：B
must一定，必须；may
(?http:?/??/?www.21cnjy.com?)可以；will将要；have
to不得不．根据You
look
very
pretty，if
I--say
so．可知这里的意思是你看起来很漂亮，如果我可以这么说，在这里may表示可以，故选B。
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21世纪教育网(www.21cnjy.com)中小学教育资源及组卷应用平台
英语情态动词练习
1.—Shall
I
inform
him
of
the
change
of
the
discussed
plan
right
away?
—I
am
afraid
you
_____,
in
case
he
comes
late
for
the
meeting.
A.
will
B.
must
C.
may
D.
can
2.
—
Catherine,
I
have
cleaned
the
room
for
you.
—Thanks.
You
it.
I
could
manage
it
myself.
A.
needn’t
do
B.
needn’t
have
done
C.
mustn’t
do
D.
shouldn’t
have
done
3.—Will
it
take
me
long
to
get
to
the
Sunshine
Hotel?21世纪教育网版权所有
—No,
it
_______
take
you
long.
It’s
not
the
rush
hour
now.
A.
shouldn’t
B.
shan’t
C.
mustn’t
D.
needn’t
4.If
you
want
(?http:?/??/?www.21cnjy.com?)
to
improve
your
figure
and
health,
the
most
effective
thing
to
do
is
to
show
up
at
the
gym
every
time
you
________
be
there.
A.
can
B.
will
C.
may
D.
shall
5.If
you
work
h
(?http:?/??/?www.21cnjy.com?)ard
and
finish
it
this
week,
you
________
have
Monday
free
next
week.21cnjy.com
A.
shall
B.
will
C.
would
D.
should
6.Since
you
are
(?http:?/??/?www.21cnjy.com?)
here
already,
you
________
as
well
stay
here
and
enjoy
yourself.21·cn·jy·com
A.
can
B.
may
C.
should
D.
must
7.—She
looks
very
happy.
She
______
have
passed
the
exam.
—I
guess
so.
It’s
not
difficult
after
all.
A.
should
B.
could
C.
must
D.
might
8.—Can
I
pay
the
bill
by
check?
—Sorry，sir．Bu
(?http:?/??/?www.21cnjy.com?)t
it
is
the
management
rules
of
our
hotel
that
payment
_____
be
made
in
cash．www.21-cn-jy.com
A.
shall
B.
need
C.
will
D.
can
9.
—Must
I
turn
off
the
gas
after
cooking?
—Of
course.
You
never
be
careful
enough
with
that.
A.
must
B.
can
C.
may
D.
should
10.
Although
passing
(?http:?/??/?www.21cnjy.com?)
the
driving
test
________
be
difficult
now,
it’s
worth
the
efforts.21教育网
A.
need
B.
shall
C.
can
D.
should
11.
—Mom!
Jack
has
broken
a
cup.
—Doesn’t
matter.
Accidents
________
happen.
A.
should
B.
will
C.
must
D.
shallB
12.The
accident
have
b
(?http:?/??/?www.21cnjy.com?)een
caused
by
a
dog
running
across
the
road,
but
we
don’t
know
for
sure.2·1·c·n·j·y
A.
might
B.
should
C.
will
D.
must
13.The
professor
(?http:?/??/?www.21cnjy.com?)recommended
the
young
couple
_________
their
emotions.【来源：21·世纪·教育·网】
A.
do
not
hide
B.
not
hide
C.
mustn’t
hide
D.
couldn’t
hide
14.Anyone
________
be
a
victim
of
road
accidents
if
he
doesn’t
observe
traffic
regulations.
21·世纪
教育网
A.
can
B.
must
C.
should
D.
shall
15.Sixty
decad
(?http:?/??/?www.21cnjy.com?)es
on,
the
presenter
(Queen
Elizabeth
II)
has
evolved
somewhat,
as
has
the
technology
she
described.
Back
then,
who
_____
that
people
would
one
day
be
watching
this
on
laptops
and
mobile
phones,
as
some
of
you
are
today?www-2-1-cnjy-com
A.
must
have
imagined
B.
may
have
imagined
C.
would
have
imagined
D.
should
have
imagined
16."Could
I
call
(?http:?/??/?www.21cnjy.com?)you
by
your
first
name?"
"Yes,you___."
A.will
B.could
C.may
D.might2-1-c-n-j-y
17John___
come
to
see
us
tonight,
but
he
isn't
very
sure
yet.
A.
?may???
B.?can???
C.?has
to???
D.?Must
18.—Mom,
I’ve
(?http:?/??/?www.21cnjy.com?)been
studying;
English
since
8
o’clock.??????I
go
out
and
play
with
Tom
for
a
while?21
cnjy
com
—No,
I’m
afraid
not.
Besides,
it’s
raining
outside
now.
A.
Can’t???
B.
Wouldn’t
C.
May
not???
D.
Won’t
19.—Mom,
I’ve
be
(?http:?/??/?www.21cnjy.com?)en
studying;
English
since
8
o’clock.??????I
go
out
and
play
with
Tom
for
a
while?【来源：21cnj
y.co
m】
—No,
I’m
afraid
not.
Besides,
it’s
raining
outside
now.
A.
Can’t???
B.
Wouldn’t
C.
May
not???
D.
Won’t
20.You?________?be
tired—you’ve
only
been
working
for
an
hour.
A.
must
not????????????????????????B.
won’t????????????????????????????????????????????????????????
C.
can’t???????????????????????????????D.
may
not
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