(共46张PPT)
Section
A
3a-3c
Let’s
listen
to
the
song:
If
I
am
happy,
…
Tell
your
partner:
If
I
am
unhappy/
sad,
…
Tell
your
partner:
If
I
watch
TV
every
night,
…
Tell
your
partner:
If
I
…,
my
parents
will
be
very
angry.
Tell
your
partner:
If
you
…,
you
can
improve
your
English
quite
soon.
Tell
your
partner:
Objectives
To
practice
the
sentence
structures:
If…,
you’ll…
—
What
will
happen
if
they…
—
If
they
...,
…will/won’t…
—
Should
we…?
—
If
we…,
they’ll…
upset
taxi
advice
adj.
难过；失望；沮丧
n.
出租汽车；的士
n.
劝告；建议
1.
我想我将会乘公共汽车去参加聚会。
I
_____
I’ll
take
the
bus
to
the
______.
2.
如果你那样做，你将会迟到。
If
you
_____,
_____
be
late.
Grammar
focus
do
you’ll
think
party
根据课本内容，完成下列句子。
3.
我想我将待在家里。
I
_____
_____
stay
at
home.
4.
如果你那样做，你将会觉得很遗憾。
If
you
____,
______
____
sorry.
5.
如果他们今天聚会，将会发生什么事？
_____
___
_______
if
they
_____
the
party
today?
think
I’ll
do
you’ll
be
What
will
happen
have
6.
如果他们今天聚会，班里一半的学生将
不会去。
If
they
______
the
party
today,
______
the
class
_______
come.
7.
我们应当要求人们带食物来吗？
Should
we
______
people
to
______
food?
have
half
won’t
ask
bring
8.
如果我们要求人们带食物来时，他们
将会只带薯条和巧克力。
______
we
______
people
to
bring
food,
________
just
______
potato
chips
and
chocolate.
If
ask
they’ll
bring
例如：We
will
go
to
the
park
if
it
_______
______
(rain)
tomorrow.
Grammar
含if条件状语从句的主从复合句
1.
if
条件状语从句中，主句用一般将来
时，从句用________________表示将来。
__________________原则。
doesn’t
遵循主将从现
rain
一般现在时
2.
if
条件状语从句中，如果主句有
must，can，may
等情态动词，从
句用___________。
例如：如果你不好好学习，你可能通不过考试。You
_____
fail
the
exams
if
you
___________hard.
don’t
work
一般现在时
may
例如：如果红灯亮了，不要过马路
___________
across
the
road
if
the
traffic
lights_____
red.
3.
if
条件状语从句中，主句是祈使句，
从句用________________表示将来。
______________原则。
are
主祈从现
一般现在时
Don’t
go
If
+……,
I’ll
/
you’ll
+……
↘
↙
↘
↙
条件
结果
If
引导条状语从句时，
从句中用一般现在时
代替一般将来时。
If
条件句歌诀:
条件句，放在前，
逗号要放句中间;①
条件句表可能，
从句多用现在时,
主句多用将来时.②
2.
If
it
____
(be)
cold
tomorrow,
I
will
wear
my
sweater.
3.
He
can
go
home
if
he
________
(finish)
his
homework.
finishes
1.
Put
up
your
hands
if
you
_____
(have)
any
questions.
have
is
趁热打铁
if
will
she,
call
me,
I,
tell
her
about
it
If
she
calls
me,
I
will
tell
her
about
it.
Practice
he,
come,
next
weekend,
I,
tell
you
If
he
comes
next
weekend,
I
will
tell
you.
not
rain,
go
hiking,
this
afternoon
If
it
doesn’t
rain,
I
will
go
hiking
this
afternoon.
no
war,
the
world,
more
beautiful
If
there
is
no
war,
the
world
will
be
more
beautiful.
he,
have
free
time,
go
to
Shanghai
If
he
has
free
time,
he
will
go
to
Shanghai.
Dear
Su
Mei,
I
don’t
______
(know)
what
to
______
(do)
about
going
to
Mike’s
birthday
party
tomorrow
night.
My
parents
_____
(think)
I
should
study
for
my
English
exam
next
week.
If
I
_____
(go)
to
the
party,
they
_______
(be)
upset.
3a
Fill
in
the
blanks
with
the
correct
forms
of
the
verbs
in
brackets.
know
do
think
go
will
be
Mike
______
(tell)
us
to
wear
nice
clothes,
but
I
don’t
________
(have)
any.
If
I
_______
(wear)
jeans,
I
_______
(look)
the
worst.
Also,
I’m
not
sure
how
to
______
(go)
to
the
party.
If
I
______
(walk),
it
________
(take)
me
too
long.
If
I
_______
(take)
a
taxi,
it
______
(be)
too
expensive.
Can
you
give
me
some
advice
please?
Tina
tells
have
wear
will
look
go
walk
will
take
take
will
be
1.
know;
do
句意“我不知道明晚参加迈克的生日聚会的事怎么做？”don’t
后跟动词原形；what
to
+
动词形式，复合不定式结构。
2.
think
本句表达一客观事实，主语parents是复数形式，故用一般现在时态。句意“我父母认为我应当为下周的英语考试而学习”
。
指导
3.
go;
will
be
本句是含
if
条件状语从句的主从复合句；应遵循主将从现原则。句意“如果我去参加聚会，他们会很失望。”
4.
tells;
have
本句为
but
连接的并列句，后半句为一般现在时，故前半句也应是一般现在时，主语
Mike
是第三人称单数形式，故填
tells；don’t
后跟动词原形。
5.
wear;
will
look
本句为含if条件状语从句的主从复合句，应循主将从现原则。句意“如果我穿牛仔，我看起来会很糟糕。”
6.
go;
how
to
+
动词原形
表示“如何做某事”，是复合不定式结构。
8.
take;
will
be
本句为含if条件状语从句的主从复合句，应循主将从现原则。句意“如果我乘出租车去，又将会很贵。”
。
7.
walk;
will
take
本句为含if条件状语从句的主从复合句，应循主将从现原则。句意“如果我步行去，将会花费我很多时间。”
Complete
the
sentences
using
your
own
ideas.
1.
If
I
get
up
late
tomorrow,
______________________
2.
If
I
don’t
finish
my
homework,
__________________
3.
If
I
don’t
get
enough
exercise,
____________________
4.
I
will
not
have
enough
time
to
study
if
________________________________
5.
I
will
not
make
any
friends
if
____________________________
3b
I’ll
be
late
for
school.
my
parents
will
be
upset.
I’ll
become
very
heavy.
I
play
chess
after
school
every
day.
I
don’t
go
to
my
friends’
parties.
3c
I
think
I
will
go
to
the
movies
tonight.
If
I
go
to
the
movies,
I
won’t
finish
my
homework.
If
I
don’t
finish
my
homework
…
Write
a
story
with
your
group
on
a
piece
of
paper.
The
first
person
begins
the
story
with
“I
think
I
will…”
The
others
add
sentences
with
“if”.
Pass
the
paper
around
twice.
Then
read
the
story.
Modal
Chain
story:
If
I
stay
at
home
all
the
day,
I’ll
have
time
to
work
hard
at
home.
If
I
work
hard
at
home
every
day,
I
will
get
better
grades.
If
I
get
better
grades,
I
will
go
to
a
better
high
school.
If
I
go
to
a
better
high
school,
I
will
go
to
a
better
university.
If
I
go
to
a
better
university,
I
will
find
a
better
job.
If
I
find
a
better
job,
I
will
make
more
money.
If
I
make
more
money,
I
will
…
Modal
Chain
story:
If
I
play
games
all
the
day,
I’ll
have
no
time
to
do
my
school
work.
If
I
don’t
do
my
schoolwork,
my
teacher
will
be
very
angry.
If
my
teacher
is
very
angry,
he
will
call
my
mother.
If
he
calls
my
mother,
she
will
be
sad.
If
she
is
sad,
I
will
be
sad.
If
I
am
sad,
I
will
eat
a
lot.
If
I
eat
a
lot,
I
will
be
very
fat.
If
I
am
very
fat,
I
won’t
look
nice.
If…
Show
yourselves
in
class!
1.
Call
me
if
Tina
______
(come).
comes
2.
She
must
see
a
dentist
if
she
_____
(have)
a
toothache.
has
3.
Have
a
good
rest
if
you
_____
(be)
tired.
are
Exercises
用括号内所给单词的正确形式填空。
4.
You
can
go
shopping
with
your
sister
if
you
_____
(have)
time
this
afternoon.
have
5.
If
there
_____
(be)
a
car
accident,
they
_______
(call)
110
at
once.
is
will
call
5.
I’ll
buy
a
computer
if
I
_______
(have)
enough
money.
6.
I’m
sure
if
he
_____
(go)
to
the
party,
he
________
(have)
a
great
time.
have
goes
will
have
I’m
not
sure
if
he
______
(go)
to
the
party.
will
go
1.
I
will
watch
TV
every
day.
My
mother
will
be
angry.
If
I
________TV
this
weekend,
my
mother
_____
_____angry.
2.
He
will
have
a
strange
haircut.
The
teachers
won’t
agree.
If
he
_____
a
strange
haircut,
the
teachers______
_______.
合成句子。
watch
will
be
has
won’t
agree
1.If
it
rains
tomorrow,
we
_____
visit
the
museum.
A.
don’t
do
B
.won’t
go
C
.aren’t
go
D.
didn’t
go.
2.
Will
you
go
to
the
park
if
it
____
fine?
A.
will
be
B.
was
C.
is
D
/
3.
If
you
__to
school
late,
your
teacher
_____
angry
with
you.
A.
come;
are
B.
come,
will
be
C.
will
come;
are
D.
will
come;
will
be
B
C
B
选择
4.
If
you
_____
hard,
you
will
___
successful.
A.
work,
are
B.
works,
is
C.
to
work,
be
D.
work,
be
5.
If
I
____
too
much
TV,
my
mother
will
_______.
A
.watch,
angry
B
.watched,
be
angry
C
.watch,
be
angry
D
.will
watch,
be
angry
D
C
Summary
主+将来时态
+
if
从
现
主+情态动词
+
动原
+
if
从
现
祈使句
+
if
从
现
Write
a
story
with
your
group
on
a
piece
of
paper.
The
first
person
begins
the
story
with
“I
think
I
will…”
The
others
add
some
sentences
with
“if”.
Pass
the
paper
around
twice.
Then
read
the
story.
Homework
If
I
don’t
do
well
in
my
test,
my
parents
will
be
upset.
…
If
I
don’t
finish
my
homework,
I
won’t
do
well
in
my
test.
An
example
