外研社必修四Module 2 traffic jam Grammar Imperatives祈使句课件(共49张)

(共49张PPT)
高一英语第三课时
教学材料：外研版高中英语必修第四册
教学内容：Module
2
Grammar
：Imperatives
Imperatives
祈使句
Schedules
祈使句
加强语气
缓和语气
肯定
否定
祈使句+连词+陈述句
非谓语
主将从现
What
are
Imperatives?
Try
to
find
any
Imperatives
in
the
lyrics!
Music
Time!
Follow
my
right
hand,
left
hand
as
I
take
the
floor
give
orders
Imperatives
Hold
my
head
up
high
keep
on
trying
Keep
my
faith
keep
pushing
on
So
tell
me
do
you
love
me
more
Right
hand
left
hand
show
my
dreams
some
faith
You!
Suggestions
建议
function
Imperatives
Instructions
指导
Warnings
警告
Request
请求
Wishes
祝愿
1
祈使句：肯定、否定
Imperatives
肯定
否定
肯定
Put
up
your
hand!
Do型
肯定
Be
quiet!
Be型
肯定
Let's
go
to
the
party!
Let型
Let’s/Let
us
肯定
Let
her
go
to
the
party!
Let型
Let’s/Let
us
祈使句肯定式
动词原形开头
D
B
L
Be
+
表语
Let’s/Let
us
肯定结构
Do
型（即动词原形+其他成分)
e.g:
Close
the
door.
Be型（即Be＋表语＋其他成分）
e.g:
Be
careful
fire.
Let型(即Let＋宾语＋动词原形＋其他成分）
e.g:
Let's
have
a
picnic
outside.
祈使句肯定式总结
否定
Put
up
your
hand!
Don't
否定
Be
quiet!
Don't
否定
Let
her
go
to
the
party!
Don't
第三人称
否定
Let's
go
to
the
party!
not
第一人称
否定
Put
up
your
hand!
Be
quiet!
Let
her
go
to
the
party!
Let's
go
to
the
party!
Don't
Never
Give
up!
Be
late
on
class!
not
No+N.
No
photos!
No
smoking!
永不...
否定
No+N.
No+doing.
祈使句否定式总结
肯定结构
Do
型（即动词原形+其他成分)
e.g:
Close
the
door.
Be型（即Be＋表语＋其他成分）
e.g:
Be
careful
fire.
Let型(即Let＋宾语＋动词原形＋其他成分）
e.g:
Let's
have
a
picnic
outside.
否定结构
在句首加don't构成
e.g:
Don't
close
the
door.
在句首加don't/never构成
e.g:
Don't
be
late
for
school.
"Don't＋let＋宾语＋动词原形＋其他成分"和"Let＋宾语十not＋动词原形十其他成分"
e.g:
Don't
let
anyone
disturb
you.
Let's
not
have
a
rest.
No+
v-ing/n.
表示禁止做某事
No
parking/smoking/admission!
2
祈使句：加强语气、缓和语气
Remember
to
buy
some
cabbages
on
your
way
back
home.
ok!!
Sorry~
Do
remember
to
buy
some
cabbages
this
time!
I
will!!
Sorry~
Remember
to
buy
some
cabbages
please!
Remember
it,
will
you?
No
problem!!
Honey~
Here
are
the
carrots!
Do
remember
to
buy
some
cabbages
this
time!
加强语气
Do...
加主语...
You
put
on
more
clothes.
It’s
cold
outside.
Jack,
you
come
here,
and
you
go
there,
Mary.
为了表示强调或加强命令、劝告的语气，使句子更具有说服力，常在其谓语动词前加上do。
祈使句的强调形式
为了加强语气或指明同谁说话，可在动词前加上主语you。加上主语时，由于是面对面说话并直呼其名，故不论第几人称，动词均用原形，不考虑主谓一致问题。
Remember
to
buy
some
cabbages
please!
Remember
it,
will
you?
Do
remember
to
buy
some
cabbages
this
time!
加强语气
缓和语气
Do...
加主语...
please
反意疑问句
祈使句的反意疑问句
Open
the
door,
will
you?
Do型
Be型
Let型
Don't
forget
it,
will
you?
Be
sure
to
write
to
us,
will
you?
Don't
be
nervous,
will
you?
will
you?
Let’s
go
there
at
once,
shall
we?
Let
us
go
there
at
once,
will
you?
shall
we?
will
you?
1.Have
a
cup
of
tea,_____________?
will
you
2.Don't
go
out
alone
after
dark,________?
will
you
3.
Let's
take
a
walk
after
supper,
___________?
will
you
4.
Let
us
go
swimming,
Mum,
_____________?
shall
we
3
祈使句-主将从现-非谓语
祈使句
Work
hard,
and
you
will
succeed.
Put
on
your
coat,
or/otherwise/
or
else
you
will
catch
a
cold.
祈使句,+连词+陈述句(will)
祈使句
Work
hard,
and
you
will
succeed.
If
you
work
hard,
you
will
succeed.
祈使句+连词+陈述句——“if主将从现”
Put
on
your
coat,
or
you
will
catch
a
cold.
If
you
don't
put
on
your
coat,
you
will
catch
a
cold.
祈使句+and+陈述句=If.....,+主句
祈使句+
or
+陈述句
=If....
not.....,+主句
祈使句
Work
hard,
and
you
will
succeed.
If
you
work
hard,
you
will
succeed.
Working
hard,
you
will
succeed.
非谓语
〖强调〗
特别注意区分非谓语动词作状语与祈使句表示条件时的区别；
1.如果有并列连词and/or/otherwise，前面便是祈使句；
2.
如果没有，则是非谓语动词作状语。
Work
hard，and
you’ll
succeed
in
time.
Working
hard，you’ll
succeed
in
time.
努力学习，你迟早会成功的。
祈使句
Arrive
earlier,
and
we
will
catch
the
train.
If
we
arrive
earlier,
we
will
catch
the
train.
Arriving
earlier,
we
will
catch
the
train.
非谓语
祈使句
Twenty
more
minutes,
I
will
finish
the
task.
If
you
give
me
20
more
minutes,
I
will
finish
the
task.
Giving
me
20
more
minutes,
I
will
finish
the
task.
Give
me
20
more
minutes,
and
I
will
finish
the
task.
非谓语
Exercise
1.
Mary,
_____here—everybody
else,
stay
where
you
are.
A.
come
B.
comes
C.
to
come
D.
coming
2.
—The
new
windows
need
washing.
—Well,
let’s
wash
them
together,
_____?
A.
shall
we
B.
will
you
C.
should
we
D.
would
you
3.
Don’t
be
discouraged.
_____
things
as
they
are
and
you
will
enjoy
every
day
of
your
life.
A.
Taking
B.
To
take
C.
Take
D.
Taken
4.Catherine,
_____
up
early
tomorrow
morning,
or
we
will
be
late
for
the
train.
A.
getting　
B.
gets　　
C.
get　　　D.
to
get
3.
Don’t
be
discouraged.
Take
things
as
they
are
and
you
will
enjoy
every
day
of
your
life.
3.
Don’t
be
discouraged.
If
you
take
things
as
they
are,
you
will
enjoy
every
day
of
your
life.
3.
Don’t
be
discouraged.
Taking
things
as
they
are,
you
will
enjoy
every
day
of
your
life.
Review
Suggestions
建议
function
Imperatives
Instructions
指导
Warnings
警告
Request
请求
Wishes
祝愿
give
orders
祈使句
加强语气
缓和语气
肯定
否定
祈使句+连词+陈述句
非谓语
if主将从现
DBL
Don't/Never
Let's
not....
No+N.
Do
主语
Please
反意疑问句
Work
hard,
and
you
will
succeed.
If
you
work
hard,
you
will
succeed.
Working
hard,
you
will
succeed.
will
you?
Let's,
shall
we?
Let
us,
will
you?
谢谢
Thank
you