(共53张PPT)
外研·九年级上册
Unit
3
Language
in
use
Module
6
Problems
If
I
start
after
dinner,
I’ll
finish
it
before
I
go
to
bed.
If
you
do
all
these
other
things
instead
of
your
homework,
you
won’t
have
time
to
study.
He
thinks
something
will
go
wrong
if
I
play
games
on
it.
Language
practice
Listen
in
class,
or
you
will
not
understand
what
to
do.
If
you
do
not
listen
in
class,
you
will
not
understand
what
to
do.
Rewrite
the
sentences
with
if.
1
Eat
your
breakfast,
or
you
will
get
hungry
at
school.
If
you
don’t
eat
your
breakfast,
you
will
get
hungry
at
school.
2
Hurry
up!
You
will
be
late.
If
You
don’t
hurry
up,
you
will
be
late.
3
Read
the
book
carefully.
Then
you
will
not
make
mistakes.
If
you
read
the
book
carefully,
you
will
not
make
mistakes.
4
Don’t
watch
too
much
TV,
or
your
eyes
will
hurt.
If
you
watch
too
much
TV,
your
eyes
will
hurt.
5
Work
harder!
You
will
get
higher
marks.
If
you
work
harder,
you
will
get
higher
marks.
if
引导的条件状语从句
(2)
if
引导的条件状语从句的时态
在含有
if
引导的条件状语从句的主从复合句中主句（陈述句）和从句通常在时态上遵循以下原则：
?如果主句（陈述句）用一般将来时，
if
从句习惯
上使用一般现在时表示将来。
◆如果他跑着去，他将会及时赶到那儿。
If
he
runs,
he’ll
get
there
in
time.
◆如果明天不下雨，我会和你一起去。
If
it
doesn’t
rain
tomorrow,
I’ll
go
with
you.
?如果主句（陈述句）是含有情态动词的句子，
if
从句习惯上使用一般现在时表示将来。
◆如果你吃变质的食物，你可能会生病。
If
you
eat
bad
food,
you
may
be
ill.
if
引导的条件状语从句通常可以转换成祈使句或with/without
短语。
?与“祈使句+
and/or
+陈述句”结构进行互换。and表示顺承关系，or
表示“否则”。
◆早点儿起床，否则你上学会迟到的。
If
you
get
up
late,
you
will
be
late
for
school.
=
Get
up
early,
or
you
will
be
late
for
school.
同义句转换
◆如果你更外向一些，你会有
更多的朋友。
If
you
are
more
outgoing,
you
will
have
more
friends.
=
Be
more
outgoing,
and
you
will
have
more
friends.
?与
unless
引导的条件状语从句进行互换。
◆如果你不努力学习，这次考试你就会不及格。
If
you
don’t
work
hard,
you’ll
fail
the
exam.
=
Unless
you
work
hard,
you’ll
fail
the
exam.
if
引导的条件状语从句与
if
引导的宾语从句的区别
if
引导的条件状语从句
if
引导的宾语从句
含义
if
意为“如果”
if
意为“是否”，相当于
whether
if
引导的条件状语从句
if
引导的宾语从句
时态
主句为一般将来时/主句含情态动词
may/might,
can/could
等，从句用一般现在时
主句为一般现在时，从句时态根据实际情况而定；主句为一般过去时，从句通常用过去的某种时态
位置
if
从句放在主句前后都可以（在主句前时要用逗号与主句隔开）
if
从句放在主句之后
?在含有
if
引导的条件状语从句的主从复合句中，主句如果用一般将来时，不能用
be
going
to
结构，而要用
will
。
◆如果我努力学习，我会取得好成绩。
(
)
If
I
study
hard,
I
am
going
to
get
good
grades.
(
)
If
I
study
hard,
I
will
get
good
grades.
if
引导的条件状语
从句在使用时要注意的其他问题
?
?
?在
if
引导的条件状语从句中不能用
some
，
要用
any。
◆如果你有问题
，请到我办公室来。
(
)
If
you
have
some
questions,
please
come
to
my
office.
(
)
If
you
have
any
questions,
please
come
to
my
office.
?
?
1.
If
it
_____
sunny,
we
_____
camping
this
weekend.
A.
get;
will
go
B.
gets;
will
go
C.
get;
go
D.
will
get;
go
2.
______
you
try
your
best,
your
dream
will
come
true.
A.
If
B.
Or
C.
Though
D.
And
练一练：单项选择
3.
—The
weather
report
says
that
it
_______
tomorrow
in
most
parts
of
Anshun
city.
—If
it
______,
the
school
sports
meet
will
be
canceled.
A.
will
rain;
will
rain
B.
will
rain;
rains
C.
rains;
will
rain
D.
rains;
rains
4.
You
will
let
him
down
_____
you
fail
in
the
exam.
A.
and
B.
if
C.
but
D.
so
5.
If
I
_____
a
two-week
holiday
next
year,
I
will
take
part
in
a
short
study
tour
to
Beijing
University.
A.
took
B.
take
C.
will
take
D.
are
taking
根据句意，用括号中所给单词的正确形式填空。
1.
If
you
___________
(
not
tell
)
me
what
the
problem
is,
I
can’t
help
you.
2.
If
you
________
(
not
be
)
careful
enough
in
the
exam,
you’ll
not
get
a
good
grade.
3.
If
the
telephone
rings,
I
___________
(
answer
)
it.
don’t
tell
are
not
will
answer
4.
She
wants
to
know
if
there
_________
(
be
)
a
flower
show
next
week.
5.
I
don’t
need
to
go
to
the
library
if
I
______
(
post
)
the
letter
on
the
way.
will
be
post
Think
of
three
problems
you
have
in
your
schoolwork.
Make
notes
about
them
in
the
Problem
boxes.
can’t
speak
English
practice
more
can’t
do
math
homework
ask
…
for
help
Schoolwork
Problem
Advice
Now
work
in
pairs.
Talk
about
your
problems
and
give
advice
to
each
other.
Complete
the
table.
If
you
practise
more
outside
the
classroom,
you
will
make
progress.
I
can’t
speak
English
well.
If
you
ask
me,
I’ll
teach
you
how
to
solve
it.
I
can’t
do
math
homework.
1
I’ll
be
really
happy
if
_______________________.
2
I
will
do
well
in
English
if
___________________
_________________________________________.
3
My
parents
will
be
angry
if
_________________.
4
If
it
rains
next
Saturday,
I
__________________
_________________________________________.
Complete
the
sentences
so
that
they
are
true
for
you.
I
have
a
new
computer
I
practice
I
fail
the
exams
won’t
go
on
a
picnic
with
my
friends
conversations
with
my
friends
Complete
the
conversation
with
the
correct
form
of
the
words
and
expression
in
the
box.
honest
pocket
money
problem
refuse
repair
terrible
truth
wear
What’s
up?
You
look
really
sad.
Yes,
I
feel
(1)
_________.
What’s
wrong?
Tell
me
about
it.
Maybe
I
can
help.
Well,
I
needed
some
new
shoes
to
wear
to
a
party.
But
I
didn’t
have
a
enough
(2)
______________
to
buy
any.
So
I
asked
my
sister
if
I
could
wear
her
new
shoes.
terrible
pocket
money
May:
Kate:
May:
Kate:
Did
she
agree?
No,
you
see,
that’s
the
(3)
_________.
She
(4)
________
to
let
me
wear
them,
because
she
bought
them
for
her
sixteenth
birthday
party.
They
were
expensive.
She
saved
up
a
lot
of
money
to
buy
them.
But
I
took
them
when
she
was
out
and
(5)
_____
them
to
the
party.
Then
on
my
way
home,
I
fell,
and
one
of
the
shoes
is
broken.
problem
refused
wore
May:
Kate:
Can
you
(6)
________
it?
No,
I
don’t
think
anyone
will
be
able
to
do
that.
Then
you
must
tell
her
the
(7)
______.
If
you
aren’t
(8)
________,
she’ll
be
even
angrier
with
you.
I
know
you’re
right.
I’ll
do
as
you
said.
truth
honest
repair
May:
Kate:
May:
Kate:
Complete
the
passages
with
the
correct
form
of
the
expressions
in
the
box.
at
the
end
of
be
proud
of
be
angry
with
listen
to
Dear
Diana,
My
grades
are
not
very
good,
and
my
parents
(1)
______________
me,
I
told
them
that
I
worked
hard
at
school.
The
problem
is,
I
am
just
not
good
at
schoolwork.
But
they
think
I
spend
too
much
time
playing
basketball
when
I
should
be
studying.
are
angry
with
It
is
true
that
I
play
a
lot
of
basketball
because
I
think
basketball
is
something
great.
I
am
in
the
school
team
and
I
(2)
____________
that.
I
want
to
be
in
the
national
team
someday.
My
uncle
has
offered
to
help
me
train
too,
but
how
can
I
get
my
parents
to
agree?
Mary
am
proud
of
Dear
Mary,
You
should
also
work
very
hard
at
school.
If
your
grades
are
better
(3)
____________
this
term,
your
parents
will
not
worry
so
much.
Then
you
can
ask
your
uncle
to
talk
to
them.
Maybe
your
parents
will
(4)
_________
him.
Diana
at
the
end
of
listen
to
Read
the
problems
and
give
your
advice.
I
want
to
take
part
in
the
school
violin
competition
this
year,
but
I
am
not
sure
whether
I
should
or
not.
I
practise
the
violin
for
three
hours
every
day.
However,
I
have
never
won
a
prize,
although
I
have
entered
the
competition
several
times.
I
came
fourth
last
year.
That
was
my
best.
I
feel
quite
unhappy
with
the
result.
I
wonder
if
I
should
just
give
up.
Kate
________________________________________________________________________________________________________________________________________________________________________________
Your
advice:
It’s
always
difficult
to
take
up
a
new
skill.
What
makes
you
happy
is
that
you
make
progress.
As
long
as
you
keep
on
trying,
I
believe
you
will
make
it.
My
best
friend
Linda
and
I
both
love
acting
and
singing.
I
have
just
found
out
that
I
have
got
the
biggest
part
in
the
school
play.
Linda
has
only
got
a
small
part.
She
is
not
happy
about
it.
I
feel
sorry
for
her.
I
know
she
wants
me
to
refuse
the
big
part.
She
says
that
is
what
a
good
friend
should
do.
But
it
is
really
important
to
me.
What
should
I
do?
Susan
____________________________________________________________________________________________________________________________________________________________________________
Your
advice:
I’m
sorry
to
hear
what
Linda
said
to
you.
I
think
a
real
friend
should
feel
proud
of
his/her
friends.
Try
to
talk
to
her
first
and
I
believe
she
will
understand
why
it’s
important
to
you.
My
friend
Peter
finds
maths
very
difficult.
He
wants
me
to
let
him
copy
my
homework.
I
want
to
refuse
because
I
do
not
think
it
is
honest
to
do
that,
but
I
do
not
want
Peter
to
get
into
trouble
with
his
parents.
They
have
warned
him
about
not
working
hard.
But
he
does
work
hard
—
it
is
just
that
he
does
not
understand
the
work.
Jack
_______________________________________________________________________________________________________________________________________
Your
advice:
You
can
teach
him
the
method
to
solve
the
maths
problem
and
tell
him
copy
is
not
good
for
his
work.
Then
you
can
help
him
try
to
be
interested
in
maths.
Listen
to
the
conversation
and
answer
the
questions.
1
What
is
the
girl’s
problem?
She
finds
it
difficult
to
get
to
sleep
at
night.
2
Is
it
a
common
problem
among
teenagers?
Yes,
it
is.
3
What
does
the
doctor
advise
the
girl
to
do?
The
doctor
advises
the
girl
to
take
enough
exercise,
eat
healthy
food
and
find
ways
to
relax
before
she
goes
to
bed.
4
What
does
the
doctor
advise
the
girl
to
do?
The
doctor
advises
the
girl
not
to
eat
too
much
sugar,
watch
TV
or
play
on
the
computer
before
she
goes
to
bed.
Advice
columns
Advice
columns
have
been
used
since
the
eighteenth
century.
In
the
past,
advice
columns
could
mainly
be
found
in
magazines
or
newspapers.
Readers
could
send
letters
to
the
columnist
to
get
expert
advice.
Nowadays,
websites
and
blogs
online
are
much
more
popular.
过去
咨询专栏
如今，网站和博客更受欢迎。
People
can
post
their
questions
or
problems
online
and
get
answers
quickly.
Anyone
can
start
an
advice
blog
about
any
topic,
like
travel,
lifestyle,
money,
health,
relationships
or
parenting.
Most
of
the
time,
people
will
not
reveal
their
names,
and
will
use
special
email
addresses.
育儿
大多数时候
透露
This
makes
advice
blogs
very
popular,
as
the
persons
seeking
advice
can
ask
embarrassing
or
difficult
questions
without
revealing
their
identity.
Module
task:
Writing
a
problem
page
for
a
magazine
Work
in
pairs.
Write
a
letter
about
a
problem.
Choose
a
problem.
Write
a
letter
about
the
problem.
Work
in
groups.
Decide
on
advice
for
the
problems
Read
each
problem.
Discuss
the
advice
for
each
problem.
Write
the
advice.
Make
a
problem
page
Design
a
problem
page.
Display
the
problem
page
for
other
students
to
read.
实战演练
假如你是九年级学生
David，因为参加学校艺术
俱乐部遭到父母的反对。请你给
New
Standard
Magazine
的
Diana
写一封电子邮件，谈谈你的
问题，并向她寻求帮助。
写作要求:
1.
内容必须包含所给的信息，可适当发挥，
使行文连贯；
2.
语篇完整，语句通顺。语法正确，书写规范；
3.
80词左右。
Dear
Diana,
I
am
David,
a
student
of
Grade
9.
I
was
happy
before,
but
now
it’s
different.
I
joined
the
art
club
in
my
school
last
month
because
I
love
painting
so
much.
When
my
parents
knew
this,
they
were
very
angry
with
me.
They
thought
it
was
not
good
for
my
study.
But
I
want
to
do
the
things
I
like.
As
a
saying
goes,
“All
work
and
no
play
makes
Jack
a
dull
boy.”
I
tried
to
explain
but
they
didn’t
listen
to
me.
It’s
hard
for
them
to
change
their
minds!
I’m
feeling
terrible
now.
What
should
I
do?
Should
I
give
up
my
hobby?
Looking
forward
to
your
advice.
Yours,
David
