Unit 4 I used to be afraid of the dark Section A Grammar Focus 课件（共31张PPT）

(共31张PPT)
Unit
4
Section
A
Grammar
Focus
用used
to
和
now
来描述下列的图片。
Review
short
tall
He
used
to
…,
but
now
he
…
long
hair
short
hair
She
used
to
…,
but
now
she
…
She
used
to
be
…,
but
now
she
is
…
.
quiet
…
outgoing
…
Make
sentences.
play
soccer
play
tennis
She
used
to
…,
but
now
she
is
used
to…
→
small,
old
houses
new
flats
We
used
to
live
in
small,
old
houses.
We
live
in
new
flats
now.
We…
根据课本内容，完成下列句子。
1.
我以前是矮个子。
I
______
____
be
short.
2.
我以前在学校不受欢迎。
I
______
_____
to
be
popular
in
school.
3.
保拉以前的确不爱说话。
Paula
_____
____
really
quiet.
4.
她以前不喜欢小测验。
She
_____
___
___
like
tests.
Grammar
Focus
didn’t
use
used
to
used
to
didn’t
use
to
5.
你以前很矮，不是吗？
You
used
to
be
short,
______
_____?
是的，我是。/
不，不是。
Yes,
I
_____.
/
No,
I
_______.
6.
他以前戴眼镜吗？
____
he
_____
___
wear
glasses?
是的，他是。/
不，不是。
Yes,
he
_____.
/
No,
he
______.
didn’t
you
Did
use
to
did
didn’t
did
didn’t
I
used
to
be
short
I
didn’t
use
to
be
popular
in
school.
Paula
used
to
be
really
quiet.
She
didn’t
use
to
like
tests.
You
used
to
be
short,
didn’t
you?
Yes,
I
did./No,
I
didn’t.
Did
he
use
to
wear
glasses?
Yes,
he
did./No,
he
didn’t.
Grammar
Focus
Grammar
used
to意为“过去常常”，用于表示过去习惯性的动作或存在的状态（强调与现在的对比，暗示现在不做了）。其中to为不定式符号，后跟动词原形。used
to只用于一般过去时态，没有人称和数的变化。
一、used
to的用法
二、used
to的句式变化
1.
否定句
used
not
主语
+
to
do
sth.
didn’t
use
e.g.
Mike
used
not
to
study
hard.
=
Mike
didn’t
use
to
study
hard.
迈克过去不努力学习。
2.
一般疑问句
Did+
主语
+
use
+
to
do…?
答语：Yes,
sb.
did.
/
No,
sb.
didn’t.
e.g.
—Did
you
use
to
go
to
museums?
你以前常去博物馆吗？
—Yes,
I
did.
/
No,
I
didn’t.
是的。/
不是。
3.
反意疑问句
主句+
didn’t+人称代词？
e.g.
Your
brother
used
to
have
noodles
for
breakfast,
didn’t
he?
你哥哥过去早餐常吃面条，不是
吗？
反义疑问句
特点是“前否后肯”或“前肯后否”，
而且后半句在时态、人称和数等方面必须
与前半句保持一致。
?
You
are
a
doctor,
aren’t
you?
你是个医生，是吗？
?
You
aren't
a
doctor,
are
you?
你不是个医生，对吗？
反义疑问句的回答：
1)回答反义疑问句和回答其他一般疑问句的
结构一样。
如果答语是肯定的，用“Yes
+肯定结构”
如果答语是否定的，用“No
+肯定结构”
You
are
a
doctor,
aren’t
you?
你是个医生，是吗？
是的，我是。/不，我不是。
--Yes,
I
am
.
/
No,I'm
not.
2)
回答陈述部分为否定句的反义疑问句时，
Yes或是No的汉语意思与它们本身的词义相反。
You
aren't
a
doctor,
areyou?
你不是个医生，对吗？
对的，我不是。/不对，我是。
--No,
I'm
not
.
/
Yes
,I
am.
?---You
didn’t
go
to
work,
didn’t
you?
你没有去上班，对吗？
?---
Yes,
I
did.
/
No,
I
didn’t.
不，我上班了。/是的，我没上班。
完成句子
1.
她过去常常很安静。
She
____
___
____
very
quiet.
2.
我过去放学后常踢足球。
I
____
___
___
soccer
after
school.
used
to
be
used
to
play
3.Lily
used
to
have
short
hair.
①变为一般疑问句:
_____________________________.
②进行肯定回答:
_____________________________.
③变为否定句:
_____________________________
.
Did
Lily
use
to
have
short
hair?
Yes,
she
did.
Lily
didn’t
use
to
have
short
hair.
1.used
to
do
sth.
过去常常做某事
表示过去习惯性的动作或存在的状态。
to后跟动词原形，只用于一般过去时态。
2.
be
used
to
+
n.
/pron./doing
意为“习惯于……”，to是介词，后接
名词、代词或动名词。可用于各种
时态。
辨
析
Work
out
the
rule!记住三个句式
Sb
used
to
do
/be
某人过去常常做/过去是……
Sb
be
(get)
used
to
doing
sth.
某人习惯于做…….
Sth
be
used
to
do
sth.
某物被用于做……
4a
Practice
Write
sentences
about
the
past
using
used
to.
1.
Grace/watch
a
lot
of
TV/watch
a
lot
of
movies
___________________________________
___________________________________
点拨：将第一个动作用肯定句来描述过去常进行的活动；将第二个动作用否定句来描述过去不常进行的活动。
Grace
used
to
watch
a
lot
of
TV.
She
didn’t
use
to
watch
a
lot
of
movies.
2.
my
mom/have
curly
hair/have
straight
hair
______________________________________
______________________________________
3.
Jerry/read
books
on
European
history/
read
books
on
African
culture
____________________________________
____________________________________
____________________________________
Jerry
used
to
read
books
on
European
history.
She
didn’t
use
to
read
books
on
African
culture.
My
mom
used
to
have
curly
hair.
She
didn’t
use
to
have
straight
hair.
4.
Sandy
/teach
British
English
/
teach
American
English
__________________________________
__________________________________
Sandy
used
to
teach
British
English.
She
didn’t
use
to
teach
American
English.
You
are
in
Grade
9
now.
Is
your
life
quite
different
from
before?
Free
Talk
Five
years
ago
Now
didn’t
eat
a
lot
of
vegetables
loves
carrots
and
tomatoes
listened
to
pop
music
enjoys
country
music
watched
scary
movies
hates
scary
movies
didn’t
read
a
lot
of
books
reads
at
least
six
books
a
year
4b
Look
at
the
information
and
write
sentences
about
Emily.
e.g.
Emily
didn’t
use
to
eat
a
lot
of
vegetables,
but
now
she
loves
carrots
and
tomatoes.
2.
Emily
used
to
listen
to
pop
music,
but
now
she
enjoys
country
music.
3.
Emily
used
to
watch
scary
movies,
but
now
she
hates
scary
movies.
4.
Emily
didn’t
use
to
read
a
lot
of
books,
but
now
she
reads
at
least
six
books
a
year.
Which
of
these
things
did
you
use
to
be
afraid
of?
Which
ones
are
you
still
afraid
of?
Check
the
boxes
and
then
ask
your
partner.
4c
Me
I
used
to
be
afraid
of…
I’m
still
afraid
of…
the
dark
being
alone
flying
high
places
giving
a
speech
in
public
独处
My
partner
My
partner
used
to
be
afraid
of…
My
partner
is
still
afraid
of…
the
dark
being
alone
flying
high
places
giving
a
speech
in
public
作业：
复习并完成练习册unit4
sectionA
部分（40页）
带B本抄练习题（明天交）
预习课本27页。