Unit 8 It must belong to Carla. 人教版英语九年级全册语法精讲课件(共25张PPT)

(共25张PPT)
人教版九年级全册语法精讲
Unit
8
It
must
belong
to
Carla.
01
课前检测
课前检测
(
)1.
—______
rabbit
is
this?
It’s
really
lovely.
—It’s
Linda’s.
A.
Who
B.
Whose
C.
What
D.
Which
(
?
)2.
Mr.
Wu
was
______
from
attending
the
meeting
by
a
bad
cold
yesterday.
A.
prevented??????
????
B.
seen
C.
allowed???
????????????
D.
supported
(
)3.
The
blue
coat
______
be
Tony’s.
He
never
wears
blue
clothes.
A.
can
B.
must
C.
can’t
D.
mustn’t
(
)
4.
—Did
Molly
tell
the
policeman
______?
—Yes.
She
told
him
how
the
accident
happened.
A.
nothing
valuable
B.
anything
valuable
C.
valuable
anything
D.
valuable
nothing
(
)
5.
The
words
on
the
paper
are
______
small
for
me
______
see
to
read
without
glasses.
A.
so;
that
B.
enough;
to
C.
such;
that
D.
too;
to
课前检测
(
)1.
—______
rabbit
is
this?
It’s
really
lovely.
—It’s
Linda’s.
A.
Who
B.
Whose
C.
What
D.
Which
(
?
)2.
Mr.
Wu
was
______
from
attending
the
meeting
by
a
bad
cold
yesterday.
A.
prevented??????
????
B.
seen
C.
allowed???
????????????
D.
supported
(
)3.
The
blue
coat
______
be
Tony’s.
He
never
wears
blue
clothes.
A.
can
B.
must
C.
can’t
D.
mustn’t
(
)
4.
—Did
Molly
tell
the
policeman
______?
—Yes.
She
told
him
how
the
accident
happened.
A.
nothing
valuable
B.
anything
valuable
C.
valuable
anything
D.
valuable
nothing
(
)
5.
The
words
on
the
paper
are
______
small
for
me
______
see
to
read
without
glasses.
A.
so;
that
B.
enough;
to
C.
such;
that
D.
too;
to
B
A
C
B
D
02
情态动词表推测
常用情态动词图册
7
(一)
can
1.
表能力。“能，会”。此时否定can’t,意为“不会，不能”。
e.g.
She
can
swim
fast,
but
I
can’t.
I
can't
play
the
piano.
2.表推测。“可能”，常用于否定句和疑问句中，此时can‘t意为“不可能”。
e.g.
--Can
the
news
be
true?
这个消息会是真的吗？
--No,
it
can't
be
true.
不可能是真的
情态动词用法
8
(一)
can
3.
表请求或允许。常用在口语中，意为“可以”(相当于may,但不如may正式)。
e.g.
Can
I
have
a
look
at
your
new
pen?
我可以看一下你的新钢笔吗?
Can
you
come
to
my
party?
学会礼貌地给予答复
肯定回答:
Sure,
I’d
love
/
like
to.
That
sounds
good!
否定回答:
Sorry,
I
can’t.
I’d
love
to,
but
I’m
afraid
I
have
no
time.
情态动词用法
9
(二)
could
1.can的过去式，意为“能、会”，表示过去的能力。
e.g.
He?could?write?poems?when?he?was?10.?他十岁时就会写诗。
2.could在疑问句中，表示委婉的语气，此时could没有过去式的意思。
e.g.
Could?you?do?me?你能帮我个忙吗？
—Could?I?use?your?pen?我能用一下你的钢笔吗?
—Yes,?you?can.可以。（注意回答）
情态动词用法
10
(三)
must
1.
must表示主观看法，意为“必须，一定”
e.g.
You
must
go
and
see
a
doctor
because
you
have
a
fever.
常考句型：
---Must
I
......?
---Yes，you
must.
---No,
you
needn't.
/
No,
you
don't
have
to.
情态动词用法
11
(三)
must
难点：must与have
to区别
must
“必须”侧重于个人意志和主观上的必须做某事，具有强制性的意味
have
to
“不得不”
强调客观上的原因迫使不得不去做某事
have
to有人称和数的变化，当为第三人称单数时，用has
to
e.g.
I
know
I
must
study
hard.
My
brother
was
very
ill,
so
I
had
to
call
the
doctor
in
the
midnight.
情态动词用法
12
2.
must
表示有把握的推测，用于肯定句。
e.g.
The
light
is
on,
so
he
must
be
at
home
now.
Jane
must
be
at
home,
because
I
saw
her
walk
into
her
house.
(二)
must
3.
否定形式为mustn’t,
表示“一定不要，绝对禁止”。
e.g.
You
mustn't
paly
with
fire.
不许玩火
You
mustn't
be
late.
一定不能迟到
情态动词用法
13
(四)
may;
maybe;
may
be;
might
She__________
a
nurse.
(她也是是一个护士)
_______
you
are
right.
(也许你是对的)
Lily
______
know
it.
(Lily也是知道它。)
______
I
take
a
photo
of
you?
(
我可以给您拍张照片吗？)
情态动词用法
14
(四)
may;
maybe;
may
be
She__________
a
nurse.
(她也是是一个护士)
_______
you
are
right.
(也许你是对的)
Lily
______
know
it.
(Lily也是知道它。)
______
I
take
a
photo
of
you?
(
我可以给您拍张照片吗？)
may:
情态动词。也许，后接动词原形。
may
be:
情态动词+动词原形；
也许是。
maybe:
副词。也许，大概。
might:
情态动词，也许。可能性较小。
may
be
Maybe
may
May的用法：
a.表示请求、许可（比can正式）。使用might时，表示语气较委婉。可以指过去的时间，也可指现在的时间。
May
I
borrow
your
pen？
b.可能、或许
（谈论可能性、表示推测，一般用于肯定句）
Tomorrow
I
may
go
shopping.
He
might
be
our
new
teacher.
might在表示推测时，不表示时态，只是说明可能性比may还要小。
C.
用于祈使句中表祝愿
e.g.
May
you
succeed!
情态动词用法
15
(五)
will
表意愿用于各种人称。时态为一般将来时。
I?will?do?anything?for?you.???
2.
will在疑问句中用于第二人称，表示询问对方的意愿或向对方提出请求。
Will?you?close?the?window???
情态动词用法
16
(六)
could,
would,
should
could的用法
a.
can的过去式，意为“能、会”，表示过去的能力。
e.g.
He?could?write?poems?when?he?was?10.
b.
could在疑问句中，表示委婉的语气，此时could没有过去式的意思。
e.g.
Could?you?do?me?你能帮我个忙吗？
—Could?I?use?your?pen?我能用一下你的钢笔吗?
—Yes,?you?can.可以。（注意回答）
—No,
I'm
afraid
not.
情态动词用法
情态动词表推测用法总结
说明
例子
must表示有很大的可能性，一般只用于肯定句，意为“肯定；一定；必定”
You
must
be
tired
after
a
long
journey.
might表可能性时语气最弱。May表推测时，表“可能，也许”常用于肯定句或否定句中。
It
may/might
rain
this
afternoon.
My
uncle
may/might
come
back
this
afternoon,
but
I’m
not
sure.
can,
could表推测，用于否定，表示有把握地否定推测,表“不可能”。couldn’t
语气委婉一些。
It
couldn’t
be
Tom
because
I
saw
him
at
school
just
now.
情态动词表推测用法总结
“情态动词+动词原形”表示对目前的事情进行推测。
e.g.
The
dictionary
must
be
Tom’s.
“情态动词+be+doing”
表示对正在发生的事情的推测。
e.g.
He
must
be
doing
his
homework
now.
“There
+情态动词+be+主语+动词-ing形式”表示“可能/或许/一定有…在做…”。
e.g.
It
is
noisy;
there
might
be
some
dogs
barking.
即学即练
(
)
1.
–
What
will
the
weather
be
like
tomorrow?
-
It
______
be
rainy,
cloudy
or
sunny.
Who
knows?
A.
must
B.
might
C.
shall
D.
should
(
)
2.
-
Listen!
James
is
talking
in
the
office.
-
It
______
be
James.
He
has
gone
to
Canada.
A.
may
not
B.
needn’t
C.
can’t
D.
mustn’t
(
)
3.
–
Susan
has
bought
a
large
house
with
a
swimming
pool.
-
It
________
be
very
expensive.
I
never
even
dream
about
it.
A.
must
B.
might
C.
can’t
D.
shouldn’t
(
)
4.
–
Is
Mr.
Brown
driving
here?
-
I’m
not
sure.
He
_______
come
by
train.
A.
may
B.
shall
C.
need
D.
must
即学即练
(
)
1.
–
What
will
the
weather
be
like
tomorrow?
-
It
______
be
rainy,
cloudy
or
sunny.
Who
knows?
A.
must
B.
might
C.
shall
D.
should
(
)
2.
-
Listen!
James
is
talking
in
the
office.
-
It
______
be
James.
He
has
gone
to
Canada.
A.
may
not
B.
needn’t
C.
can’t
D.
mustn’t
(
)
3.
–
Susan
has
bought
a
large
house
with
a
swimming
pool.
-
It
________
be
very
expensive.
I
never
even
dream
about
it.
A.
must
B.
might
C.
can’t
D.
shouldn’t
(
)
4.
–
Is
Mr.
Brown
driving
here?
-
I’m
not
sure.
He
_______
come
by
train.
A.
may
B.
shall
C.
need
D.
must
B
C
A
A
03
Grammar
Focus
Grammar
Focus
Whose
volleyball
is
this?
It
must
be
Carla’s.
She
loves
volleyball.
Whose
hair
band
is
this?
It
could
be
Mei’s
hair
band.
Or
it
might
belong
to
Linda.
They
both
have
long
hair.
What
did
you
see
that
night?
I’m
not
sure,
but
it
can’t
be
a
dog.
It
was
bigger.
I
think
it
might
be
a
bear
or
a
wolf.
巩固练习。从括号中选择最复合语境的词完成句子。
1.
A:
Where’s
Jean?
B:
I’m
not
sure.
She
________(
is/
might
be/
must
be)
in
the
laboratory.
2.
A:
Everyone
is
going
to
the
pool
after
school.
B:
Really?
It
________(
must
be/
can’t
be
/
could
be
)
hot
outdoors.
3.
A:
That’s
the
phone.
B:
Hmm.
I
wonder
who
it
________
(must
be/
could
be/
should
be).
4.
A:
I
wonder
if
these
are
Jim’s
glasses.
B:
They
___________(
can’t
be/
might
be/
could
be)
his.
He
doesn’t
wear
glasses.
巩固练习。从括号中选择最复合语境的词完成句子。
1.
A:
Where’s
Jean?
B:
I’m
not
sure.
She
________(
is/
might
be/
must
be)
in
the
laboratory.
2.
A:
Everyone
is
going
to
the
pool
after
school.
B:
Really?
It
________(
must
be/
can’t
be
/
could
be
)
hot
outdoors.
3.
A:
That’s
the
phone.
B:
Hmm.
I
wonder
who
it
________
(must
be/
could
be/
should
be).
4.
A:
I
wonder
if
these
are
Jim’s
glasses.
B:
They
___________(
can’t
be/
might
be/
could
be)
his.
He
doesn’t
wear
glasses.
might
be
must
be
could
be
can’t
be
谢谢聆听