(共44张PPT)
Unit
3
Language
in
use
Module
11
Way
of
life
外研·八年级上册
Language
practice
You
must
say
Mr
or
Mrs
when
you
meet
someone
for
the
first
time.
You
can
take
it
away.
You
mustn’t
break
anything.
You
needn’t
wait!
情态动词must的用法
表示主观的义务和必要，主要用于肯定句和疑问句，为“必须得……要……”；由must引导的疑问句，肯定回答要用must，否定回答要用needn’t，
“不必”；
must的否定形式mustn’t表示禁止，“不能，不许”。
情态动词can的用法
1)
表示能力。
I
can
swim.
2)
表示可能性，“可以，可能”。
He
can
be
very
friendly
at
times.
3)
表示允诺，“可以，能够”。
You
can
have
the
book
when
I
have
finished
it.
4)
表示惊异、猜测、怀疑等（用于疑问句、否定句
或感叹句中），“会，可能”。
This
can’t
be
true.
情态动词must、need
Summary
1.
Must
表示
______,
否定形式
_______
表示
______。
Must
I
come
before
6:30
tomorrow?
一般疑问句肯/否定回答：
Yes,
you
_______.
/No,
you
________.
必须
mustn’t
禁止
must
needn’t
2.
Need
表示
______，
否定形式
_______
表示
______。
Need
I
report
to
the
police?
一般疑问句肯/否定回答：
Yes,
you
_______.
/No,
you
________.
需要
needn’t
不必要
must
needn’t
Practice
1.
(江苏无锡中考)
—
We’ve
got
everything
ready
for
the
picnic.
—
Do
you
mean
I
______
bring
anything
with
me?
A.
can’t
B.
mustn’t
C.
couldn’t
D.
needn’t
2.
(广东中考)
Look!
The
traffic
light
has
turned
red.
We
_____
stop
our
car.
A.
can
B.
can’t
C.must
D.
mustn’t
3.
(湖北黄石中考)
—
Sorry,
Mis
Liu.
I
left
my
workbook
at
home.
Must
I
hand
it
in
today?
—
No,
you
______.
You
______
bring
it
here
tomorrow.
A.
mustn’t;
should
B.
can’t;
must
C.
mustn’t;
may
D.
needn’t;
can
1
Complete
the
conversations
with
can
or
can’t.
1
A:
Can
you
drive
a
car
at
the
age
of
seventeen
in
England?
B:
Yes,
we
.
How
about
in
China?
A:
No,
we
.
can
can’t
2
A:
Can
you
open
a
gift
immediately
after
you
receive
it
in
England?
B:
.
What
about
in
China?
A:
No,
we
usually
don’t.
Yes,
we
can
3
A:
Can
you
push
your
way
onto
a
bus
in
England?
B:
.
How
about
in
China?
A:
No,
we
either.
No,
we
can’t
can’t
4
A:
Can
you
drive
on
the
right-hand
side
of
the
road
in
England?
B:
.
What
about
in
China?
A:
Yes,
we
must.
No,
we
can’t
Try
to
make
a
face
book
about
cultures
of
English-speaking
countries.
Write
down
the
interesting
things
you
find.
Look
for
some
pictures
to
go
with
them.
2
Complete
the
sentences
with
must
or
must
not.
School
rules
1
You
be
late
for
school.
2
You
eat
in
the
library.
3
You
ride
your
bike
in
the
playground.
4
You
do
your
homework.
5
You
listen
to
the
teacher.
must
not
must
not
must
not
must
must
3
Underline
the
correct
words.
It
is
important
to
know
what
you
must
and
must
not
do
when
you
meet
people
from
a
different
country.
You
(1)
may
/
must
not
ask
Westerners
“How
old
are
you?”
because
it
is
not
polite.
You
(2)
might
/
can
know
someone
well,
but
you
(3)
must
/
need
not
ask
“How
much
money
do
you
make?”
He
(4)
may
/
can
never
speak
to
you
again!
In
public
places,
you
(5)
must
/
can
ask
people
before
you
take
photos
of
them,
and
you
(6)
must
not
/
might
not
eat
or
drink
in
shops
or
museums.
In
some
countries
you
(7)
cannot
/
can
go
into
someone’s
house
with
your
shoes
on.
You
(8)
need
not
/
must
not
take
them
off.
But
in
some
other
countries
you
(9)
might
/
must
not
wear
shoes
in
the
house.
Listen
to
a
teenager
talking
about
his
life.
Check
(√)
the
things
he
must
or
mustn’t
do.
4
√
√
√
√
√
√
must
mustn’t
1
clean
up
bedroom
once
a
week
2
wash
up
after
dinner
3
stay
out
after
9
pm
4
do
homework
before
going
out
5
wash
hands
before
dinner
6
play
music
loudly
after
10
pm
5
Listen
again.
What
two
things
does
he
say
he
can
do?
1
___________________________________
2
___________________________________
___________________________________
He
can
go
out
with
his
friends
at
weekends.
He
can
play
music
loudly
before
ten
o’clock
at
night.
Well,
my
parents
are
quite
strict.
I
must
clean
up
my
bedroom
once
a
week
and
I
must
always
wash
up
after
dinner.
My
parents
are
very
strict
about
that.
I
mustn’t
stay
out
after
nine
o’clock
at
night,
but
I
can
go
out
with
my
friends
at
weekends.
I
must
do
my
homework
before
I
go
out
and
I
must
wash
my
hands
before
dinner.
I
can
play
music,
but
I
mustn’t
play
it
loudly
after
ten
o’clock
at
night.
Tapescript
6
Write
some
things
you
can,
must
and
must
not
do
at
home.
I
can…
I
must…
I
must
not…
Now
work
in
pairs.
Tell
each
other
three
things
you
must
do
at
home
and
three
things
you
mustn’t
do.
Are
your
home
rules
different
or
the
same?
—
I
must
visit
my
grandparents
once
a
week.
I
mustn’t
stay
up
late
in
the
evening.
—
...
Possible
answers
1.
I
can
watch
TV
when
I
come
home
from
school.
2.
I
must
help
around
the
house,
for
example,
do
the
washing
up.
3.
I
must
not
go
to
bed
late.
Complete
the
sentences
with
the
words
or
expressions
in
the
box.
7
baseball
cap
chess
set
chopsticks
dictionary
presents
1
Use
your
to
look
up
any
words
you
do
not
understand.
2
Most
Chinese
people
eat
noodles
with
_____________.
dictionary
chopsticks
3
Jenny
could
not
wait
to
open
her
birthday
__________.
4
He
thinks
it
is
cool
to
wear
his
_____________
back-to-front.
5
Where
is
my____________?
Let’s
play
a
game.
presents
baseball
cap
chess
set
Play
a
game.
Choose
a
word
or
an
expression
from
the
box
and
describe
it
to
the
class.
The
class
guesses
what
it
is.
8
baseball
cap
bike
chess
set
chocolate
chopsticks
dictionary
fish
and
chips
litter
photo
video
game
A:
Many
people
have
one.
B:
Is
it
a
chess
set?
A:
No,
You
use
it
to
get
to
places.
C:
Is
it
a
bike?
A:
Yes.
You
wear
it
on
your
head.
A
baseball
cap.
You
can
use
it
to
look
up
new
words.
A
dictionary.
You
can
use
it
to
play
chess.
A
chess
set.
…
Traditional
presents
In
the
West,
people
often
take
flowers
when
they
visit
someone.
Different
flowers
have
different
meanings.
For
example,
people
often
give
red
roses
to
someone
they
love.
In
Greece,
you
must
not
give
white
flowers
because
that
means
that
someone
is
dead.
When
you
go
to
a
foreign
country,
it
is
always
best
to
check
what
people
usually
do,
so
you
do
not
make
mistakes.
Module
task:
Giving
advice
to
foreign
guests
who
are
visiting
a
Chinese
family
Write
some
advice
for
foreign
visitors
to
a
Chinese
family.
Think
about:
9
What
must
they
wear?
What
mustn’t
they
talk
about?
What
can’t
they
do?
What
presents
can
they
bring?
When
must
they
arrive?
…
1.
What
must
they
wear?
A.
Pajamas.（睡衣）
B.
Formal
clothes.
C.
Slippers.（拖鞋）
2.
What
mustn’t
they
talk
about?
A.
weather
B.
dead
people
C.
travelling
3.
What
can’t
they
do?
A.
Shout
at
others.
B.
Make
a
lot
of
noise.
C.
Stay
too
long.
4.
What
presents
can
they
bring?
A.
Fruits.
B.
White
flowers.
C.
Red
wine.
5.
When
must
they
arrive?
A.
Too
early.
B.
On
time.
C.
Too
late.
6.
What
else
need
they
do?
They
need
____________.
Work
in
pairs.
Show
the
advice
you
wrote
in
Activity
9
to
your
group
members.
Choose
two
best
pieces
of
advice.
10
Show
the
advice
your
group
chose
in
Activity
10
to
the
whole
class.
Put
the
pieces
of
advice
together
to
form
the
advice
of
the
whole
class.
11
When
you
visit
a
Chinese
family,
you
must
wear
formal
clothes.
You
should
bring
some
gifts.
You
can
bring
fruits
and
red
wine.
You
must
arrive
on
time.
Possible
answers
Send
the
advice
of
the
whole
class
to
your
foreign
friends
or
post
it
on
your
class
blog.
12
Advice
for
foreign
guests
Welcome
to
China!
I’d
like
to
give
you
some
advice,
when
you
visit
a
Chinese
family._____________________________
__________________________________________
__________________________________________
__________________________________________
Have
a
good
time!
When
in
China,
do
as
Chinese
do.
入乡随俗。
Preview
the
use
of
must,
mustn’t,
need,
can
and
can’t.
2.
Search
for
more
information
about
Western
customs
and
write
another
passage
about
ways
of
life
in
the
west
country.
3.
Do
the
exercises.
