U2
Lesson
4
Class
Projects
2
初二年级
英语
Review
the
words.
teamwork
协同合作,配合
glue
胶水
musical
音乐的
metal
金属
instrument
乐器
paper
纸;纸张
wood
木头
plastic
塑料
bottle
瓶子
material
材料
camera
照相机
object
物品,东西;目标
chopsticks
筷子
teamwork
木头
musical
乐器
wood
协同合作,配合
bottle
音乐的
camera
照相机
instrument
瓶子
Match
the
words.
Match
the
words.
glue
筷子
metal
物品,东西;名称
paper
纸;纸张
plastic
金属
material
材料
object
胶水
chopsticks
塑料
Review
the
text.
Review
the
text.
Review
the
text.
Review
the
text.
Read
the
text
and
underline
the
rules.
Read
the
text
and
underline
the
rules.
Read
the
text
and
underline
the
rules.
Read
the
text
and
underline
the
rules.
Read
the
text
and
underline
the
rules.
You
can
use
wood,
paper
and
glue
but
you
mustn't
use
other
things.
You
must
make
two
musical
instruments
with
plastic
bottles.
You
can't
use
materials
from
toys
or
real
instruments.
You
must
describe
your
building
but
it
doesn't
have
to
be
long.
You
have
to
play
some
music
with
the
instruments
for
three
minutes.
Read
the
sentences.
Definition
定义
Modal
Verbs
情态动词
情态动词是:
表达说话人对动作或状态的情态观点的动词。
一般出现在动词原形前面与之一起构成谓语动词。
1.
can,
cannot
(can’t)
Modal
Verbs
情态动词
can表示“能够”“会”“可以”。例如:
Can
I
come
in?
You
can
watch
TV
as
long
as
you
like.
can’t
表示“不能够”“不会”“不可以”。例如:
You
can’t
stay
out
late.
You
can’t
smoke
here.
2.
must,
must
not
(mustn’t)
Modal
Verbs
情态动词
must表示“必须”“一定要”,表示说话人的主观意图和个人感情。例如:
I
must
leave
at
9:00.
I
must
get
up
early
tomorrow.
I
have
a
lot
of
things
to
do.
2.
must,
must
not
(mustn’t)
Modal
Verbs
情态动词
mustn’t
表示“一定不要”,语气强硬。例如:
It’s
a
secret.
You
mustn’t
tell
anyone.
We
mustn’t
waste
our
time.
3.
have
to,
do
not
(don’t)
have
to
Modal
Verbs
情态动词
have
to表示“不得不”“必须”,但相比must,
have
to
含有
“客观条件使得必须如此做”的意思。例如:
You
have
to
do
it.
(因为规章制度或情况的要求)
George
can’t
come
out
with
us
this
evening.
He
has
to
work.
3.
have
to,
do
not
(don’t)
have
to
Modal
Verbs
情态动词
don’t
have
to
表示“没有必要”。例如:
You
can
tell
me
if
you
want
but
you
don’t
have
to.
I’m
not
working
tomorrow,
so
I
don’t
have
to
get
up
early.
Listen
and
choose
the
correct
words.
1.
The
man
must
/
mustn’t
take
a
photo.
2.
The
students
can’t
/
must
fly
their
model
planes.
3.
The
students
have
to
/
don’t
have
to
use
wood
to
make
the
musical
instrument.
4.
Ben
must
/
mustn’t
sing
quietly.
5.
The
students
don’t
have
to
/
mustn’t
write
their
reports
in
plete
with
can
/
can’t
or
have
to
/
don’t
have
to.
3.
You
use
dictionaries
in
English
class,
but
you
use
them
for
tests.
2.
You
borrow
books
from
the
library,
but
you
return
them
on
plete
with
can
/
can’t
or
have
to
/
don’t
have
to.
1.
You
play
basketball
in
the
classroom.
You
play
in
the
playground.
can’t
have
to
can
have
to
can
can’t
4.
You
come
to
school
before
8,
and
you
leave
after
5:00.
5.
You
use
mobile
phones
after
class,
but
you
use
them
during
plete
with
can
/
can’t
or
have
to
/
don’t
have
to.
6.
You
take
photos
of
their
animals,
but
you
feed
them.
can
have
to
can
can’t
can
can’t
1.
You
stop
at
a
red
light.
2.
You
cross
the
road
on
a
red
light.
3.
You
drive
fast
near
a
school.
4.
Drivers
use
mobile
phones.
5.
Babies
sit
in
a
baby
plete
the
traffic
rules
with
must
/
mustn’t.
1.
You
stop
at
a
red
light.
2.
You
cross
the
road
on
a
red
light.
3.
You
drive
fast
near
a
school.
4.
Drivers
use
mobile
phones.
5.
Babies
sit
in
a
baby
plete
the
traffic
rules
with
must
/
mustn’t.
must
mustn’t
mustn’t
mustn’t
must
Talk
about
your
school
rules.
eat
food
in
class,
use
mobile
phones
in
class,
get
to
class
on
time,
listen
to
music
in
class,
talk
in
exams,
sleep
in
class,
bring
dictionaries
to
school
can
/
cannot
(can’t),
must
/
must
not
(mustn’t),
have
to
/
do
not
(don’t)
have
to
Example:
You
can’t
/
mustn’t
eat
food
in
class.
1.
a)
There
are
some
snacks
in
the
cupboard.
b)
There
are
some
snakes
in
the
cupboard.
2.
a)
There
are
two
cats
in
this
room.
Which
one
do
you
mean?
b)
There
are
two
Kates
in
this
room.
Which
one
do
you
mean?
3.
a)
The
pan
is
on
the
right.
b)
The
pain
is
on
the
right.
Listen
and
choose
the
sentences
you
hear.
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/ei/
1.
a)
There
are
some
snacks
in
the
cupboard.
b)
There
are
some
snakes
in
the
cupboard.
2.
a)
There
are
two
cats
in
this
room.
Which
one
do
you
mean?
b)
There
are
two
Kates
in
this
room.
Which
one
do
you
mean?
3.
a)
The
pan
is
on
the
right.
b)
The
pain
is
on
the
right.
Listen
again
and
repeat.
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/ei/
Homework
1.
熟读教材P18
Lesson
4的课文;
2.
完成教材P89的练习A。