(共40张PPT)
情态动词must，can't
，
may，might,
could表推测，后面都接动词原形。
must
一定，肯定
may,
might,
could有可能，也许
can't
一定不，不可能
He
is
a
little
boy
from
cartoon.He
is
confident,
lovely,and
brave.He
always
wears
a
blue
school
uniform
and
a
pair
of
glasses.He
is
a
famous
detective,and
likes
to
say:Only
one
truth
prevails!
Who
is
he?
Whose
bag
is
this?
There
are
many
things
in
it,such
as
a
VIP
card
for
yoga,a
ticket
to
SPA,
and
a
lipstick.
It
_____
belong
to
Jim.Why?
A.must
B.can't
C.mustn't
B
Whose
T-shirt
is
this?
This
T-shirt
is
so
big,John
is
a
tall
boy,
he
likes
playing
basketball.Tom
is
a
short
boy,He
doesn't
like
sports.
It
_____
be
John's.Why?
A.must
B.can't
C.mustn't
A
Whose
ticket
is
this?
Carol
and
Ming
are
both
going
to
the
concert.They
like
Mayday
Club.
This
ticket
_____
be
Carol's
or
Ming's.Why?
A.must
B.can't
C.might
C
Who
is
that
Hero?
Mary
was
running
on
the
road
at
six
yesterday,suddenly
,a
car
was
coming
to
her
quickly,
at
that
time,a
hero
was
shooting
webs
from
his
wrist
to
save
her.
He
_____
be
Spider-Man.Why?
A.must
B.can't
C.might
A
情态动词
must,
may,might,
could,
can't
后
接动词原形,可以表示对情况的一种_________.
It
can't
（
）
It
may/might/could（
）
It
must
（
）
+
be
sb.'s/belong
to
sb.
（
）
推测
不可能
有可能
肯定
属于某人
Can
this
T-shirt
be
John’s?
No,
it
can’t
be
John’s.
Because
it’s
much
too
small
for
him.
John
Guess:
What’s
it
?
It
could
/
might
be
a/an
…
What’s
in
the
schoolbag?
There
must/could/might/can’t
be
a
…
in
it.
Linda
Mom
Does
Linda
look
happy?
They
are
talking
about
Linda’s
schoolbag.
Let’s
look
and
say.
Why
is
Linda
worried?
What
are
there
in
her
schoolbag?
Where
is
Linda's
schoolbag?
Because
she
can’t
find
her
schoolbag.
Her
books,
her
pink
hair
band
and
some
tennis
balls.
We
don’t
know.
Listen
and
answer
the
questions
below.
21世纪教育网
Lead
in
1.When
did
Linda
attend
a
concert?
2.
Where
did
Linda
last
put
her
schoolbag?
3.Could
Linda’s
schoolbag
be
stolen?
Why?
4.
What
did
she
do
after
the
concert?
5.
Could
Linda’s
schoolbag
still
be
at
the
park?
Why?
She
went
to
a
picnic.
Yes.
She
left
early,
before
the
rest
of
her
friends.
She
thought
someone
must
have
picked
it
up.
Yesterday.
She
didn't
remember.
No,
it
can’t
be
stolen.
There
is
not
anything
valuable
in
her
schoolbag.
Read
and
answer
the
questions.
Listen
and
repeat.
Linda:
Mom,
I
’m
really
worried.
Mom:
Why?
What’s
wrong?
Linda:
I
can’t
find
my
schoolbag.
Mom:
Well,
where
did
you
last
put
it?
Linda:
I
can’t
remember!
I
attended
a
concert
yesterday
so
it
might
be
still
in
the
music
hall
.
Mom:
Do
you
have
anything
valuable
in
your
schoolbag
?
Linda:
No,
just
my
books,
my
pink
hair
band
and
some
tennis
balls.
Mom:
So
it
can’t
be
stolen.
Linda:
Oh,
wait!
I
went
to
a
picnic
after
the
concert.
I
remember
I
have
my
schoolbag
with
me
at
the
picnic.
Mom:
So,
could
it
still
be
at
the
park?
Linda:
Yes.
I
left
early,
before
the
rest
of
my
friends.
I
think
somebody
must
have
picked
it
up.
I’ll
call
them
now
to
check
if
anybody
has
it.
2d
发带
在野餐
出席音乐会;
在音乐厅
有价值的一些东西
去野餐
我的其他朋友
捡起
对某人来说有价值
hair
band
at
the
picnic
attend
a
concert
in
the
music
hall
anything
valuable
the
rest
of
my
friends
go
to
a
picnic
pick
up
be
valuable
to
sb.
Translate
the
phrases.
中考链接
①.
-He___
be
in
the
classroom,
I
think.
-No,
he
___
be
in
the
classroom.
He
went
to
the
library
just
now.
A.
can;
may
not
B.
must;
may
not
C.
may;
can't
D.
may;
mustn't
②.
Mary
____
be
in
Paris.
I
saw
her
in
town
only
a
few
minutes
ago.
A.
mustn’t
B.
shouldn’t
C.
can’t
D.
may
not
C.
may;
can't
C.
can’t
③.Peter
____
come
with
us
tonight,but
he
isn’t
very
sure
yet.
A.
must
B.
may
C.
can
D.
can't
④.
-Whose
ticket
is
this?
-It
must
____
Lucy’s.
A.belong
to
B.is
C.
belong
D.be
B.
may
D.be
1.
_______
volleyball
is
this?
这是谁的排球？
It_____
_____
Carla's.
She
loves
volleyball.
它一定是卡拉的。她喜欢打排球。
2.
Whose
______
_______
is
this?
这是谁的发带？
It
_____
_____
Mei's
hair
band.
Or
it
might
______
_____
Linda.
They
both
have
long
hair.它可能是梅的。或者它也有可能属于琳达的，她们俩都是长发。
Whose
must
be
hair
band
could
be
belong
to
Let’s
review(复习)
3.
_______
______
you
see
that
night?
你那天晚上看见什么了？
I’m
not
sure.
but
it
_____
____
a
dog.
It
was
bigger.
I
think
It
_____
_____
a
bear
or
a
wolf.
我不确定。但它不可能是一只狗。它要大些。我想它有可能是一只熊或者一只狼。
What
did
can't
be
might
be
Let’s
review(复习)
1.
这里过去曾是一个安静的地方。
It
_______
_______
_______
a
very
quiet
place.
2.
他说他常常听到窗外有奇怪的噪音。
He
said
he
often
______
_______
_______
outside
the
window.
used
to
be
heard
strange
noises
3.
有些人认为一定是孩子们正在快乐玩耍。
Some
people
think
it
_______
_______children
_______
fun.
4.
一定有人在公园里唱歌。
There
_______
_______
someone
_______
in
the
park.
5.这能是真的吗?
___________
this
be
true?
must
be
having
must
be
singing
Can
/
Could
1.
这是谁的排球?
______
________
is
this?
这一定是卡拉的。她热爱排球运动。
It
_____
be
_______.
She
loves
volleyball.
Whose
volleyball
must
Carla’s
Fill
in
the
blanks.
2.
这是谁的发带？______
____
____
is
this?
它可能是梅的发带。或者可能属于琳
达。她们两人都是长头发。
It
_____
be
Mei’s
hair
band.
Or
it
_____
belong
to
Linda.
They
____
have
long
hair.
could
might
both
Whose
hair
band
3.
那晚你看见了什么？
_____
did
you
see
that
night?
我不确定，但肯定不可能是狗。它更大。我想也许是一头熊或一匹狼。
I’m
___
____,
but
it
_____
___
a
dog.
It
was
bigger.
I
think
it
_____
___
a
bear
or
a
wolf.
What
not
sure
can’t
be
might
be
1.
他肯定知道答案。
He
_____
______the
answer.
2.
他肯定不知道答案
He
____
_________the
answer.
3.
他知道答案吗？
_______
he
know
the
answer?
4.
他不可能捡到了她的书包。
He
______
_____
_____
up
her
schoolbag.
5.
他可能不在家，不过我也不确定。.
He
______
_______
_______at
home,
but
I’m
not
sure.
6.
他可能知道那个消息。
He
______
_______
that
news.
may
not
be
must
know
can’t
know
Could/Can
can’
t
have
picked
might
know
1）must
，
could,
can’t
可以对现在/正在/过去的事情进行推测
以must为例
（现在）must
+
do
一定…
（正在进行）
must
+
be
doing
一定正在做…
（过去）
must
+
have
done
一定做了…
2）may
/
might可以对现在/正在/过去的，以及将来的事情进行推测
may
+
do
可以对一般现在和将来进行推测
可能…/
可能会做…
情态动词(must
,could/may/might,
can’t)
对现在/正在/过去的事情进行推测
总结
（现在）情态动词
+
do
（正在进行）
情态动词
+
be
doing
（过去）
情态动词+
have
done
（
将来）may/might
+
do
(现在)
他一定有一辆小汽车。
He
_____
______a
car
now.
2.
(正在进行)
他一定在家做作业。
He
_____
____
________his
homework
at
home.
3.
(过去)
他一定已经完成了工作。
He
____
_____
______the
work.
4.
他不可能去了上海，我刚看见他了。
He
____
____
______to
Shanghai
because
I
saw
him
just
now
5.
(将来)
可能会下雨。因为有一些乌云。
It______
_____.
There
are
some
clouds.
must
have
must
be
doing
must
have
finished
can’t
have
gone
may
rain
可能性:
must>
can/could
>
may/
might
can
not
(
can’t)
could
not
(couldn’t)
may
not
/
might
not
否定
否定
?
确定的推测
含义
不确定的推测(可能性依次减弱)
含义
肯定句
must
一定；必定
can＞could＞
may＞might
可能
否定句
can’t＞couldn’t
不可能
may
not＞
might
not
不大
可能
can和could也可以用于疑问句中表示推测。
-
情态动词表示推测有以下几种结构表示:
??
情态动词+
do
/
be
(表示对现在或将来的动作或状态推测)
be
doing
(表示对正在发生的事情推测)
have
done
(表示对过去发生的事情推测)
must表推测时不用否定形式，如果用否定，mustn’t
表示“禁止；不许”，而不表示推测。表示“一定不会”用can’t
be。
A:
Whose
CD
is
it?
B:
Is
it
Dale’s?
_____.
It
_____
____
______.
A:
Why?
Because
he____________________.
A:
Is
the
basketball
Dale’s?
Yes.
____________________.
A:
Why
?
B:Because________________________.
No
can’t
be
Dale’s
doesn’t
like
music
It
must
be
Dale’s.
he
likes
playing
basketball.
Can’t
be
不可能是/在可能性几乎为零,否定的语气最强
Use
the
information
from
the
table
to
make
your
own
conversations
.
You
can
use
“
be
sb’s
”
or
“
belong
to
sb
”
.
Tom
100%
story
book
He
likes
reading
and
telling
story
very
much.
John
20%-80%
football
He
said
that
they
would
play
football
after
school.
Lucy
0%
toy
snake
She
is
terrified
of
the
snake.
XXX
……
……
……
A:
Whose
…is
this?
B:
It
might
/could/can’t
/must
belong
to
xx.
(It
might/could/can't/must
be
xx’s.
)
A:
Why?
B:
Because
…
用must,
might,
could或can’t
填空
The
toy
car
_______
be
Jim’s.
He
is
the
only
kid
at
the
picnic.
2.
This
Mp5
_______
be
Linda’s.
I
know
she
has
one.
3.
The
mobile
phone
_______
belong
to
Lucy
or
Lily.
They
both
have
mobile
phones.
4.
The
man
_______
be
Mr.
Smith.
He
has
gone
to
Shanghai
and
he’ll
be
back
in
three
days.
must
could/might
could
/
might
can’t
4a
Choose
the
best
way
to
complete
each
sentence
using
the
words
in
brackets.
1.
A:
Where’s
Jean?
B:
I’m
not
sure.
She
________
(is/
might
be/
must
be)
in
the
laboratory.
might
be
n.
实验室
2.
A:
Everyone
is
going
to
the
pool
after
school.
B:
Really?
It
_______
(must
be
/
can’t
be
/could
be
)
hot
outdoors.
must
be
adv.
在户外，在野外
表示“位移”的动词用现在进行时态表将来，例如：go去，come来，leave离开，arrive到达，return
回来，fly
飞。
e.g.
I
am
coming.=I
will
come.
He
is
leaving
for
Paris.=He
will
leave
for
Paris.
3.
A:
That’s
the
phone.
B:
Hmm.
I
wonder
who
it
_______
(must
be
/
could
be
/
should
be).
could
be
4.
A:
I
wonder
if
there
are
Jim’s
glasses.
B:
They
_______
(can’t
be
/
might
be
/
could
be)
his.
He
doesn’t
wear
glasses.
can’t
be
wonder
v.
“想知道”
(want
to
know)
No
wonder+句子,“难怪.....”
e.g.
No
wonder
you
are
angry.
难怪你觉得生气。
5.
A:
I
hear
water
running
in
the
bathroom.
B:
It
________________
(could
be
/
must
be
/
can’t
be)
Carla.
She
was
thinking
of
taking
a
shower.
could
be/must
be
think
of
想要；打算
e.g.
I
thought
of
playing
basketball.
我想打篮球。
1.
A:
Many
people
are
wearing
coats.
B:
The
weather
must
be
_________________________.
2.
A:
Sally
has
been
coughing
a
lot.
B:
She
might
be
____________________.
getting
colder/cold
outside
having
a
sore
throat/
ill
4b
Complete
these
responses.
n.
外套
3.
A:
This
restaurant
is
always
very
crowded.
B:
The
food
________________.
4.
A:
Whenever
I
try
to
read
this
book,
I
feel
sleepy.
B:
It
can’t
_______________.
must
be
delicious
be
interesting
adj.
困的
Look
at
this
picture
of
a
room.
How
much
can
you
tell
about
the
person
who
lives
here?
Is
it
a
boy
or
a
girl?
What
are
his/her
hobbies?
Discuss
your
ideas
with
a
partner.
4c
1.
This
pair
of
glasses
_____
be
Tony’s.
He’s
the
only
one
who
wears
glasses.
A.
must?
??????
B.
might
?
?
?C.
can’t
2.
—Will
Jim
fly
to
Taiwan
for
a
holiday?
—He
_____
try.
In
fact,
it
depends
on
how
much
the
journey
costs.
A.
may?
??????
B.
has
to
?
?
?C.
need
D.
must
3.
—Is
the
man
in
the
car
John?
—No,
it
_____
be
him.
He
went
to
Xi’an
on
business
yesterday.
A.
can’t?
??????
B.
must
C.
mustn’t
D.
could
4.
—I
saw
Susan
in
the
library
just
now.
—No,
it
_____
be
her.
She
went
to
Shanghai
this
morning.
A.
must
?
?????B.
can’t
C.
may
D.
needn’t
谢谢
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Unit
8
It
must
belong
to
Carla.
Section
A
2d&Grammar
Focus
同步练习
一、句型转换
1.Must
I
park
the
car
here?
(否定回答)?
_______
you
_______.
2.This
person
must
be
an
English
teacher.
(改为否定句)
This
person
_______be
an
English
teacher.
3.It
is
so
big
that
it
can’t
be
a
dog.
It
is
______
big
______
be
a
dog.
4.Miss
Zhang
was
unhappy
when
she
heard
the
news.
(完成反意疑问句)
Miss
Zhang
was
unhappy
when
she
heard
the
news,
?
5.I
think
somebody
has
picked
it
up.(改为否定句)
I______
think
______
has
picked
it
up.
二、用所给词的适当形式填空
1.
In
spring,
people
often
feel
_________
(sleep).
2.
It’s
said
that
there
are
_________
(wolf)
visiting
the
village.
3.
We’ll
have
fun
_________
(take)
a
vacation
in
Europe.
4.
There
must
be
some
boys
_________
(play)
games
on
the
playground.
5.
When
you
meet
trouble,
please
call
the
_________
(policeman)
for
help.
Unit
8
It
must
belong
to
Carla.
Section
A
2d&Grammar
Focus
同步练习答案
一、句型转换
1.No;needn’t
2.can’t
3.too;to
4.wasn’t
she
5.don’t
;
anybody
二、用所给词的适当形式填空
1.
sleepy
2.
wolves
3.
taking
4.
playing
5.
Policemen
