(共66张PPT)
Let
it
go
Teaching
Aims:
1.Knowledge
aims：
(1)
掌握语法：祈使句，情态动词
have
to,
must
的用法。
(2)
掌握交际用语：
Don’t
eat
in
class!
No
talking!
Do
you
have
to
wear
a
uniform
at
school?
2.Ability
aims：
(1)
能正确使用情态动词have
to。
(2)
能熟练使用目标词汇和语言，围绕规章制度展开话题，发表自己的看法与观点。
3.Emotion
aims：通过对规章制度的学习与讨论，教育学生规范自己的行为。
?
You
can’t
________.
Don’t
___________.
Mr
Don’t
You
can’t
________.
Don’t
_________.
Mr
Don’t
You
can’t
________.
Don’t_________.
Mr
Don’t
School
rules:
1.
______
arrive
late
for
school.
2.
Don’t
eat
_________.
3.
______
fight.
5.
_______
wear
a
hat
in______.
6.
______
run
in
the
___________.
7.
______
__________
music
in
the
classroom.
8.
Don’t……
Don’t
in
class
Don’t
Don’t
listen
to
Mr
Don’t
Don’t
class
Don’t
hallways
As
a
student,
we
must
keep
the
rules（遵守规定）,
we
can't
break
the
rules（违反规定）.
Mr
Don’t
says
.
没有规矩不成方圆
A
saying(谚语）
Library
rules
Library
rules
=
No
food!
Don’t
eat
food
.
Don’t
bring
your
wet
umbrella
to
the
library
!
=
No
wet
umbrella.
Don’t
smoke.
=
No
smoking.
=
No
listening
to
music!
Don’t
listen
to
music.
Library
rules
=
No
talking!
Don’t
talk!
Be
quiet!
Don’t
bring
your
schoolbag
to
the
library
!
=
No
school
bags!
Do
you
know
the
rules
for
the
school
library?
No
school
bags!
No
talking!
No
wet
umbrellas!
No
listening
to
music!
No
food!
The
imperative
sentence祈使句
No+n.
/
No+doing
=
Don’t
do
No
photos.
=
Don't
take
photos.
No
food.
=
Don't
eat
food.
No
parking.
=
Don't
park.
No
smoking.
=
Don't
smoke.
Do
we
have
to
(不得不，必须）keep
the
rules?
Yes,
we
do.
No,
we
don't.
√
As
a
student,
we
have
to
keep
the
school
rules.
As
a
child
,we
have
to
keep
the
family
rules.
As
a
citizen(公民）,we
have
to
keep
the
social
rules.
Pairwork
-Do
we
have
to
….
-Yes,
we
do.
We
have
to
......
but
we
don't
have
to......
wear
uniforms
at
school/
.....
……………….at
home
Pairwork
--Does
she
have
to
……?
--Yes,
she
does.
She
has
to
......
but
she
doesn’t
have
to......
wear
sports
shoes
inPEclass/
.............................in
other
classes
--Do
we
have
to
......?
--Yes,
we
do.
We
have
to
…..but
we
don’t
have
to
…..
Pairwork
get
up
early
on
weekdays/
……………..on
weekends.
We
have
to
wear
uniforms
at
school.
We
don’
t
have
to
wear
uniforms
at
school.
Do
we
have
to
wear
uniforms
at
school.
Yes
,we
do.
No,
we
don’t.
She
has
to
get
up
early
on
weekdays.
She
doesn’t
have
to
get
up
early
on
weekdays.
Does
she
have
to
get
up
early
on
weekdays?
Yes
,she
does
.
No
,
she
doesn’t.
Grammar
have
to
不得不，必须
肯定句
否定句
一般疑问句
主语+have
to
+动原.
主语（单数）+has
to
+动原
主语+don’t
/doesn’t
+have
to+动原
Do/Does
+主语+have
to
+动原？
Grammar
have
to
"不得不，必须“。侧重客观上的必要。
(1)情态动词后面加动词原形，主语是第三人称单数时用has
to
。
1.I
have
to
get
up
at
6:00
am.
2.She
has
to
walk
to
shool.
(2)否定句形式:主语+don't/doesn't
+动词原形+其他。She
doesn't
have
to
walk
to
school.
(3)疑问句形式：Do/Does
+主语+have
to
+动词原形+
其他。
Does
she
have
to
walk
to
school?
Yes
,she
does.
No,
she
doesn't.
must
与have
to
的区别
Must
表示主观需要，无人称及时态的变
化。
have
to
表示客观需要，随人称及时态的变
化
而变化
As
a
student,
Mary
must
study
hard
.(主观意志）
Mary
has
to
walk
to
school
because
her
bike
is
broken.
（
客观条件迫使）
We?must?finish?the?work?before?lunch.?
（强调主观认为有义务早完成工作。）
?=We?have?to?finish?the?work?before?lunch.?
（强调客观情况迫使，如不完成就会…，是不得以而为之。）
Exercises
1.My
bike
is
broken.
I
__________
walk
home.（have
to/
must)
2.Joe
__________
get
up
early
to
catch
the
early
bus.（have
to/
must)
3.My?mother?was?ill?yesterday,?so?I??________stay?at?home.
?
（have
to/
must)
4.We?______study
hard.?
（have
to/
must)
5.
____________(
arrive
not)
late
for
class.
6.
No
food
in
class.
(改为同义句)
have
to
has
to
have
to
must
Don’t
arrive
Don’t
eat
food
in
class.
7.
Do
your
homework
at
school.
(改为否定句)
8.We
can’t
go
out
on
school
nights.(改为祈使句）
9.Lucy
has
to
go
to
bed
before
9:00
o'clock.(否定句）
10.She
has
to
be
in
bed
by
ten
(对划线部分提问)
Don’t
do
your
homework
at
school.
Don't
go
out
on
school
nights.
Lucy
doesn’t
have
to
go
to
bed
before
9:00
o'clock
What
does
she
have
to
do?
二.
火眼金睛
1.He
doesn’t
his
homework
at
home
2.Not
go
out
at
night,
Alan.
3.
She
can’t
fights
with
her
classmates.
4.
Does
Mary
has
to
go
home
now?
5.Tom
have
to
eat
in
the
dining
mall.
doesn’t
do
________
________
Don’t
__________
fight
______
have
________
has
No
climing.
No
touching.
No
picking.
No
swimming.
No
fishing.
No
parking.
No
pets.
No
bikes.
No
photos.
No
turning
right.
10
9
8
7
6
5
4
3
2
1
0
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
0
Summary:
1.Learn
more
about
imperative
sentence.
Don't
smoke.
No
smoking.
2.Learn
the
use
of
“have
to”.
3.Know
more
signs
in
public.
Homework:
Writing
We
have
school
rules
and
library
rules.
What
do
you
think
of
the
rules
in
your
family
or
in
public(公共场所)?
choose
one
of
them
to
write.
You
can
begin
like
these:
I
/
We
can…
I
/
We
can’t
…
I
/We
have
to
….
Don’t….
