(共32张PPT)
Unit
4
Don't
eat
in
class.
Period
2
Section
A
(2a-2d)
人教版
七年级下
学习目标:
1.
Learn
to
master
the
new
words
and
expressions
in
this
lesson.
2.
Consolidate
the
use
of
imperative
sentences;
3.Can
is
used
to
express
affirmative,
negative,
general
questions
and
affirmative
and
negative
answers.
4.
improve
the
students'
listening
and
speaking
ability.
Learn
sentences
and
phrases
that
take
time
and
distance
学习重、难点：
比眼力!
Don’t
fight
with
your
classmates.
What
are
the
rules?
Don’t
listen
to
music
in
the
classroom.
What
are
the
rules?
Don’t
arrive
late
for
school.
What
are
the
rules?
Don’t
eat
in
the
classroom.
You
must
eat
in
the
dining
hall.
What
are
the
rules?
Don’t
run
in
the
hallways.
What
are
the
rules?
School
Rules
Don’t
eat
in
the
classroom.
Don’t
run
in
the
hallways.
Don’t
arrive/be
late
for
class.
Don’t
fight.
Don’t
listen
to
music
in
class.
Read
the
rules
together.
No,we
can't.We
can't...
Can
we…?
We
must...
But
we
can...
Choose
and
make
up
new
sentences.
2a.
Listen.
Check
the
activities
Alanand
Cindy
talk
about.
Activity
1.
___
listen
to
music
in
the
classroom
or
hallways
can
can’t
2.
___
listen
to
music
in
the
music
room
can
can’t
3.
___
listen
to
music
outside
can
can’t
4.
___
eat
in
the
classroom
can
can’t
5.
___
eat
in
the
dinning
hall
can
can’t
6.
___
eat
outside
can
can’t
7.
___
wear
a
hat
can
can’t
8.
___
fight
can
can’t
√
√
√
√
√
√
√
2b.
Listen
again.
Can
Alan
and
Cindy
do
these
activities?
Circle
can
or
can’t
above.
Activity
1.
___
listen
to
music
in
the
classroom
or
hallways
can
can’t
2.
___
listen
to
music
in
the
music
room
can
can’t
3.
___
listen
to
music
outside
can
can’t
4.
___
eat
in
the
classroom
can
can’t
5.
___
eat
in
the
dinning
hall
can
can’t
6.
___
eat
outside
can
can’t
7.
___
wear
a
hat
can
can’t
8.
___
fight
can
can’t
√
√
√
√
√
√
√
Cindy
is
telling
Alan
the
school
rules:
We
______
listen
to
music
in
the
classroom
or
_________.
But
we
____
listen
to
it
outside
or
in
the
music
room.
And
we
can’t
_____in
the
classroom,
but
we
can
eat
in
the
_____
_____.
We
can’t
_______________
or
________
our
classmates.
That
______
the
teachers
really
unhappy.
Listen
again
and
fill
in
the
blanks.
can’t
hallways
can
eat
hall
dining
wear
hats
in
class
fight
with
makes
We
can’t
listen
to
music
in
the
classroom
or
hallways.
But
we
can
listen
to
music
in
music
room.
2c.
Student
A
is
Alan
and
Student
B
is
Cindy.
Talk
about
the
rules
in
2a.
Can
we
listen
to
music?
We
can’t
eat
in
the
classroom,
but
we
can
eat
in
the
dining
hall.
Can
we
eat
in
the
classroom?
No,
we
can’t.
What
else?
Oh,
we
can’t
fight
with
the
classmates.
That
makes
the
teachers
really
unhappy.
Oh,
can
we
wear
a
hat
in
class?
I
see…
1.
What
are
John
and
Alice
talking
about?
_____________
2.
How
many
rules
does
Alice
mention?
______________
School
rules.
Four
rules.
2d.
Read
the
dialogue
in
2d
and
answer
the
questions.
3.
Is
John
new
at
school?
___________
4.
Are
there
many
rules
at
school?
______________
5.
Can
he
bring
music
players
to
school?
_______________
6.
Do
they
have
to
always
wear
the
school
uniform?
_______________
Yes,
he
is.
Yes,
there
are.
No,
he
can’t.
Yes,
they
do.
What
are
some
of
the
rules?
Dos
Don’ts
Wear
the
school
uniform.
Be
quiet
in
the
library.
Don’t
be
late
for
school.
Don’t
bring
music
players
to
school.
Who
is
the
fastest？
两人一组分角色朗读对话，比一比，看谁发音准确、吐字清晰、语言流畅，快者胜出！
John
is
in
a
new
school.
He
is
talking
about
their
school
rules
with
Alice.
First,
don't___________class.
It
is
very
_________.
Students
_______be
on
time.
Secondly,they
____
bring
music
players
to
school.
And
they
always_______wear
the
_____
________.
____they
have
to
be
quiet______
the
library.
Fill
in
the
blanks.
be
late
for
must
can't
have
to
school
uniform
Also
in
important
知识点
1
rule
n.规章；规则。可数名词,
构成的短语有:
obey
the
rules
follow
the
rules
遵守规则
be
against
the
rules
break
the
rules
违反规章
知识点
2
bring
意为“带来”
bring:
从别处拿/带某物到说话者所在的地方
take:
从说话者所在的地方拿/
带某物到别处
“bring”和“take”两个词都与某物的运动有关，但“bring”意味着随身携带来某物，而“take”则意味着带走某物
例如：
把你的iPad拿这里来。
______________________________
把它拿到厨房去。
______________________________
Bring
your
iPad
here.
Take
it
to
the
kitchen.
知识点
3
情态动词have?to?的用法:“必须、不得不”.
have
to表“必须”时与must意义接近，有时可与must互换，但have
to所表示的“必须”更侧重于客观需要。
情态动词must通常表示说话人的主观看法，“必须”。无人称和数的变化
，不能单独使用，必须与其后的动词原形构成谓语。其否定形式为mustn't，“不准；禁止”。
例如：
我不得不在家照顾我弟弟。
______________________________
孩子们必须6点前回来。
______________________________
I
have
to
look
after
my
brother
at
home.
The
children
must
be
back
before
6
o’clock.
have
to可用在不同时态中，有人称和数的变化。
结构:1.肯定形式：主语＋
have?to
＋动词原形＋其他
has
to(一般现在时,
单三式)
2.否定形式:“不必”主语＋
don't?have?to＋动词原形＋其他
doesn't
have
to(一般现在时，单三式)
3.疑问句:
Do?(Does)
＋主语＋have?to?＋动词原形＋其他?
例如：
尼克不必穿制服。
______________________________
-周末你必须呆在家里吗?
-是的,
我必须。/不,
我不必。
______________________________
Nick?doesn’t?have?to?wear?a?uniform.
--Do?you?have?to?stay?at?home?on?weekends?
?--Yes,?I?do.?/?No,?I?don’t.?
词(组)
用法
否定形式
have
to
必须；不得不
强调客观存在的必要性，含有不情愿的色彩，不能用来表示推测。有时态、人称和数的变化。
don't/doesn't
have
to意为“不必；不必要”，相当于needn't。
must
必须；一定
表示说话人的主观意志和看法，含有自觉、自愿的色彩，不能用于过去时或将来时，也没有人称和数的变化。可以用来表示推测，
意为“准是；一定”
mustn't表示“禁止；不允许；一定不要”。
辨析have
to
与must
考点
用have
to,
must
填空
1.
It’s
cold
outside.
We
______
stay
at
home.
2.
We
____
be
good
with
our
parents.
have
to
must
练一练
祈使句
Example:
肯定祈使句
否定祈使句
1.
Sit
down.
2.
Come
in.
3.
Eat
at
home.
4.
Listen
to
music
outside.
5.
Do
your
homework
at
school.
Don’t
sit
down.
Don’t
come
in
.
Don’t
eat
at
home.
Don’t
listen
to
music
outside.
Don’t
do
your
homework
at
school.
表示请求,命令等语气的句子,
其结构为省去主语you的简单句
.
知识点
4
一、把下列祈使句改成否定句
1.
Sit
down.
2.
Come
in.
3.
Eat
at
home.
随堂检测
Don’t
sit
down.
Don’t
come
in.
Don’t
eat
at
home.
二、
用have
to或has
to填空
随堂检测
1.
We
_______
clean
our
classroom
after
school.
2.
She
_______
make
her
bed
after
getting
up.
3.
It’s
late.
Mr.
Beckman
_______
go
to
work
by
car.
4.
Emily
and
Peter
join
a
music
club.
They
________
practice
guitar
every
day.
have
to
have
to
has
to
has
to
三、将下列句子译成英语。
随堂检测
不要在上课时听音乐。
__________________________
2.
我们必须准时。
___________________________
3.
我们能把音乐播放器带到学校里来吗？
___________________________________
在图书馆里我们必须保持安静。
________________________________
不要在楼道里跑
。
_________________________________
Don’t
listen
to
music
in
class.
We
must
be
on
time.
Can
we
bring
music
players
to
school?
We
must
keep
quiet
in
the
library.
Don’t
run
in
the
hallways.
Homework:
Do
the
exercises.
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