(共30张PPT)
Unit
4
Don't
eat
in
class.
My
son
is
going
to
this
school
in
September.
He
wants
to
know
some
rules
about
our
school.
Review
Write
down
some
rules
in
our
school.
(At
least
4
rules)
School
Rules
_______________
_______________
_______________
_______________
Review
When
you
have
to
go
to
a
new
school,
you
want
to
be
a
good
student
so
you
want
to
know
about
school
rules.
John
is
at
a
new
school.
Let's
see
what
rules
his
new
school
has.
1.
Is
John
new
at
school?
___________
2.
Are
there
many
rules
at
school?
______________
Read
the
conversation
and
answer
the
questions.
Yes,
he
is.
Yes,
there
are.
3.
Can
he
bring
music
players
to
school?
_______________
4.
Do
they
have
to
always
wear
the
school
uniform?
_______________
No,
he
can’t.
Yes,
they
do.
Dos
What
rules
does
the
school
have?
Wear
the
school
uniform.
Be
quiet
in
the
library.
Don’t
be
late
for
school.
Don’t
bring
music
players
to
school.
Don’ts
2d
Role-play
the
conversation.
Role-play
John
Alice
first
day
some
of
the
rules
must
be
on
time,
bring
music
players
see
great,
a
lot
of
rules
don't
be
late
for
,important
wear
the
school
uniform
be
quiet
Where
is
it?
Library
Rules
Don’t
talk.
________________
________________
________________
3a
Write
the
rules
for
the
school
library.
Don’t
eat
or
drink
Don’t
listen
to
music.
Don’t
take
photos.
方法指导：
1.
由图示可知都是一些禁止类的祈使句。
2.
可知应用“Don’t
+
动词原形”句子。
Discuss
and
make
rules
for
the
school
library.
We
must
be
quiet
in
the
library.
Don’t
run
in
the
library.
Don’t
eat
or
drink
in
the
library.
Don't
take
wet
umbrella
to
the
libarry.
Library
Rules
Don’t
talk/Be
quiet
in
the
library.
Don't
eat
or
drink
in
the
library.
3.
Don't
listen
to
music
in
the
library.
4.
Don’t
take
photos
in
the
library.
5.
Don't
take
wet
umbrella
to
the
libarry.
Be
quiet?
(she/have
to
/in
the
library)
Q:
Does
she
have
to
be
quiet
in
the
library?
A:
Yes,
she
does.
3b
Use
the
words
to
make
questions
about
the
rules.
Then
write
answers
according
to
your
school.
2.
Eat?
(he/have
to/in
the
dinning
hall)
Q:
__________________________
A:
__________________________
3.
Listen
to
music?
(we/can/in
the
hallways)
Q:
__________________________
A:
__________________________
4.
Wear
a
hat?
(we/can/in
the
classroom)
Q:
________________________
A:
________________________
2.
Eat?
(he/have
to/in
the
dining
hall)
Q:
________________________________?
A:
_____________
3.
Listen
to
music?
(we/can/in
the
hallways)
Q:
________________________________?
A:
_____________
4.
Wear
a
hat?
(we/can/in
the
classroom)
Q:
_____________________________?
A:
____________
Then
answer
the
questions.
Yes,
he
does.
Does
he
have
to
eat
in
the
dining
hall
Can
we
listen
to
music
in
the
hallways
No,
we
can’t.
Can
we
wear
a
hat
in
the
classroom
No,
we
can’t.
At
my
dream
school,
we
don’t
have
to
come
to
school
every
day.
…
We
can
eat
in
class.
…
3c
Make
up
five
cool
rules
for
your
dream
school.
Share
your
rules
with
the
class.
Your
classmates
vote
for
the
Coolest
School!
We
don’t
have
to
wear
school
uniforms.
…
We
can
listen
to
music
in
class.
…
We
can
eat
in
the
classroom.
…
We
don’t
have
to
do
homework.
…
At
my
dream
school,
we
don’t
have
to
come
to
school
every
day.
We
can
eat
in
the
classroom.
We
can
listen
to
music
in
class.
We
don’t
have
to
do
homework.
We
don’t
have
to
wear
school
uniforms
at
school.
Great!
Jim’s
school
is
the
coolest.
1.
不要在楼道里跑。
_______________________
2.
不要打架。
_______________
3.
有什么规则？
__________________________
4.
我们必须按时上课。
__________________________
Don’t
fight.
Don’t
run
in
the
hallways.
What
are
the
rules?
We
must
be
on
time
for
class.
Grammar
Focus
5.
我们可以在教室里吃东西吗？
_____________________________
6.
不能。但我们可以在餐厅里吃东西。
______________________________
______________________________
7.
我们可以在上课的时候带帽子吗？
___________________________
Can
we
wear
a
hat
in
class?
No,
we
can’t,
but
we
can
eat
in
the
dining
hall.
Can
we
eat
in
the
classroom?
8.
他在学校里必须穿校服吗？
_________________________________
9.
是的，必须。/
不，不必。
_______________________________
10.
你们必须做什么？
_______________________________
11.
在图书馆里我们必须保持安静。
________________________________
Yes,
he
does.
/
No,
he
doesn’t.
Does
he
have
to
wear
a
uniform
at
school?
What
do
you
have
to
do?
We
have
to
be
quiet
in
the
library.
祈使句是表示请求、命令、建议等的句子。句子中通常不出现主语，谓语动词一律用原形。根据句子语气的强弱，句末用感叹号或句号。
一、祈使句的肯定式
1.
以行为动词原形开头，简称Do型。
e.g.
Come
here.
到这儿来。
2.
以动词be开头，简称Be型。
e.g.
Be
quiet,
please.
请安静。
3.
以Let开头，简称Let型。
e.g.
Let’s
go!
咱们走吧!
注意：
有时可在祈使句的句首或句尾加上please，使语气显得客气、有礼貌。如果在句尾加please，应该用逗号与前句隔开。
e.g.
Go
this
way,
please.
请这边走。
二、祈使句的否定式
1.
Do型和Be型的否定式是在句首加don’t。
e.g.
Don’t
sit
here.
不要坐在这儿。
Don’t
be
late.
别迟到。
2.
以let开头的祈使句，其否定式有两种：
一种是直接在句首加don’t，另一种是
“let
+
宾语
+
not
+动词原形+
(其他)”。
e.g.
Don’t
let
him
go.
不要让他走。
Let’s
not
go
there.
咱们别去那儿。
注意：
“No+名词/动词?ing形式”表示禁止或规劝，常用于公共场所。
e.g.
No
photos!
禁止拍照！
No
smoking！??????
禁止吸烟！
Why
we
must
follow
the
rules
