情态动词主要用法总结 本文关键词：情态，动词，用法
情态动词主要用法总结 本文简介：情态动词主要用法总结can/could1.表能力：例：Canyoutype?Shecouldrunandwasagoodplayer.2.表允许,“可以”。例：CanIcomein?Hesaidwecouldgototheshopforsweets.could比can语气更委婉。也可以用“may”.
情态动词主要用法总结 本文内容：
情态动词主要用法总结
can
/
could
1.
表能力：
例：Can
you
type?
She
could
run
and
was
a
good
player.
2.
表允许,“可以”。
例：Can
I
come
in?
He
said
we
could
go
to
the
shop
for
sweets.
could
比can语气更委婉。也可以用
“may”.
3.
表猜测，多用于疑问或否定句。
例：Can
it
be
true?
He
can’t
be
more
than
thirty.
Where
could
he
have
gone?
4.
虚拟语气中用could.
例：If
you
tried,you
could
do
that
work.
5.
表一时的情况,“有时候会…”
例：Children
can
be
very
annoying.
Our
house
is
on
the
top
of
the
hill,and
in
winter
the
winds
can
be
very
cold.
may
/
might
1.
表许可或征求同意,“可以”。
例：May
/
Might
I
leave?
You
may
bring
them
back
tomorrow.
2.
表可能性,“可能，或许”。
例：He
may
not
be
there.
He
thought
it
might
be
wise
to
try
his
luck
there.
You
may/might
have
read
some
account
of
the
matter.
3.
虚拟语气中用might.
例：If
you
didn’t
mind,we
might
go
there.
If
it
had
not
been
for
you,I
might
not
have
understood.
4.
may
表祝愿。
例：May
you
be
happy!
May
God
bless
you!
must
1.
“必须，一定要”。
例：You
must
see
the
doctor.
2.
表猜测，“一定…”。
例：Judging
by
the
smell,the
food
must
be
good.
He
must
have
arrived
by
air.
He
must
be
working
hard.
3.
表客观必然、不可避免,“必然会，肯定会”.
例：All
men
must
die.
4.
表说话人的不耐烦或令人不快的事，“偏要，偏偏”。
例：Just
when
we
were
ready
to
go
away
for
the
holidays,the
baby
must
catch
a
cold.
shall
助动词用法：构成将来时，用于第一人称。
例：We
shall
read
about
this
tomorrow.
（也可以用will表示）
情态动词用法：
1．征求对方意见，用于一、三人称的疑问句。
例：Shall
I
turn
on
the
light?
Shall
the
boy
wait?
2.
表示说话人的许诺、威胁、决心、规定、命令等，“一定要….”.
例：I
shall
be
there.
I
promise
you
shall
see
her
again.
Each
competitor
shall
wear
a
number.
should
助动词用法：构成过去将来时，用于第一人称。
例：I
told
him
that
I
should
see
him
the
next
day.
情态动词用法：
1．表责任、义务，“应该”,相当于“ought
to”。
例：Children
should
obey
their
parents.
2．should
have
done的用法.
3.
在其他特殊句型中的用法。
will
助动词用法：构成一般将来时，多用于第二、三人称。
例：I
must
go
;
the
students
will
be
waiting
for
me.
情态动词用法：
1.
表请求，多用于第二人称，“…好吗？”。
例：Will
you
type
this
letter,please?
2.
表意愿，“愿意”。
例：Go
where
you
will.
I
will
pay
you
at
the
rate
you
ask.
3.
表习惯、经常性、倾向性，“总是会…,老是会….”.
例：He
will
ask
silly
questions.
Sometimes
the
cat
will
lie
there
all
afternoon.
Oil
and
water
will
not
mix.
This
machine
will
not
work.
would
1.
构成过去将来时；
2.
will的第２、３用法的过去形式；
3.
表虚拟语气。
need
情态动词用法：
1.
用于否定和疑问句。
例：Need
I
tell
her?
You
needn’t
do
it.
2.
用于I
don’t
think这类的否定结构后面。
例：I
don’t
suppose
I
need
wear
a
coat.
I
asked
him
whether
he
need
go.
行为动词用法:
1.
need
＋名词／代词；
2.
need
to
do
sth.
3.
need
sb.
to
do
sth.
4.
sth.
need
doing
=
sth.
need
to
be
done;
dare
情态动词用法：用于否定句、疑问句或条件句：
例：No
one
dared
speak
of
it.
How
dare
you
ask
me
such
a
question?
I
wonder
if
she
dared
come
home.
行为动词用法:
1.
dare
(to)
do
sth.
(否定和疑问句可省略to)
例：He
dares
to
accuse
me
of
dishonesty.
He
does
not
dare
(to)
answer.
2.
dare
sth.
敢于面对….，敢于尝试….
例：He
will
dare
any
danger.
3.
dare
sb.
to
do
sth.
激某人做某事
例：He
dared
me
to
jump
over
the
stream.
Exercise
1.
The
plant
is
dead.
I
_____
it
more
water.
A.
will
giveB.
would
have
given
C.
must
giveD.
should
have
given
2.
–
How
did
you
go
to
the
concert
yesterday
evening?
--
I
went
on
foot,but
I
____
by
bus.
A.
might
goB.
should
be
gone
C.
could
have
goneD.
ought
have
gone
3.
Very
loud
noises
____
make
people
ill,hurt
their
ears,or
even
drive
them
mad.
A.
mustB.
needC.
canD.
should
4.
--
____
I
get
you
some
food?
--
No,thanks.
A.
Might
B.
ShallC.
WillD.
Ought
5.
He
had
sent
me
the
money
he
owed
me,so
I
____
to
him
for
it.
A.
needn’t
have
writtenB.
didn’t
need
to
write
C.
needn’t
to
writeD.
needn’t
wrote
6.
Teachers
and
pupils
___
look
coldly
at
you
for
a
day
or
two,but
there
are
friendly
feelings
in
their
hearts.
A.
mustB.
canC.
mayD.
should
7.
He
has
promised
his
daughter
that
she
___
have
a
new
bike.
A.
shallB.
wouldC.
mightD.
need
8.
You
must
have
seen
him
yesterday,____?
A.
don’t
youB.
didn’t
you
C.
mustn’t
youD.
haven’t
you
9.
You
must
have
seen
a
lot
of
films,____?
A.
don’t
youB.
did
you
C.
mustn’t
youD.
haven’t
you
10.
Why
____
you
always
interrupt
me?
A.
canB.
have
toC.
mustD.
will
11.
He
___
get
up
early
when
he
lived
in
the
country.
A.
wouldB.
couldC.
shouldD.
might
12.
I
have
told
him
many
times
but
he
___
listen
to
my
advice.
A.
shall
notB.
won’tC.
couldD.
was
able
to
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