牛津译林版英语九年级上Unit 3 Teenage problems Grammar课件（22张PPT无素材）

(共22张PPT)
Unit
3
Teenage
problems
Grammar
Grammar
A
1.
当宾语从句是陈述句时（包括肯定句和否定句），连词由that引导，因为that在从句中不作任何成分，也没有任何具体意思，因此在口语或非正式文体中常省略。
一、连接词（引导词）
Review
e.g.
1.
I
hear
(that)
_______________________.
（一小时后他会回来）
2.
He
said
(that)
______________________.
（他非常想念我们）
he
will
be
back
in
an
hour
he
missed
us
very
much
2.
当宾语从句是一般疑问句时，连词用if或者whether，意为“是否”，一般情况下可以互换，同时把原来的疑问语序改为陈述语序。主句的谓语动词一般为表示疑问的ask,
see,
wonder,
find
out
等。
一、连接词（引导词）
e.g.
1.
Ask
him
_____________________.
（他是否能来）
2.
I
don’t
know
___________________________.（是否要下雨）
whether/if
he
can
come
whether
it
is
going
to
rain
or
not
注意：以下情况只用whether，不用if。
1.
whether引导的从句常可以与连词or或or
not直接连用。如：
正：Let
me
know
whether
you
can
come
or
not.
误：Let
me
know
if
you
can
come
or
not.
2.
当宾语从句提到句首时，只能用whether引导。如：
正：Whether
it
is
true
or
not,
I
can’t
tell.
误：
If
it
is
true
or
not,
I
can’t
tell.
3.
whether可以引导带to的不定式。如：
正：I
don’t
know
whether
to
accept
or
refuse.
误：I
don’t
know
if
to
accept
or
refuse.
4.
whether及其引导的成分可放于介词之后，作介词的宾语。如：
正：I
worry
about
whether
I
hurt
her
feelings.
误：I
worry
about
if
I
hurt
her
feelings.
5.
whether可以引导从句，作主语、表语或同位语，而if不能。如：
正：It
was
uncertain
whether
he
would
come.
误：It
was
uncertain
if
he
would
come.
6.
if
意为“如果”，引导条件状语从句，其后若为将来的动作，则用一般现在时表示，这时if不能用whether替换。如：
正：We
will
go
shopping
if
it
doesn’t
rain
tomorrow.
误：We
will
go
shopping
whether
it
doesn’t
rain
tomorrow.
3.
当宾语从句是特殊疑问句时，连词用疑问句中的疑问词，同时把原来的疑问语序改为陈述语序。此时宾语从句常可用“疑问词+
to
do
”
的结构替换。
一、连接词（引导词）
different
from
Practice
1.
How
many
people
can
you
see
in
the
picture
Who
knows
____
_____
_______
____
____
_____
in
the
picture
2.
Where
did
she
park
her
car
Do
you
know
Do
you
know
_______
_______
______
her
car
3.
What
does
he
often
talk
about
The
girl
wonders.
The
girls
wonders
______
______
often
______
about.
4.
Who
is
knocking
at
the
door
I
don’t
know.
I
don’t
know
______
______
_________
at
the
door.
how
many
people
you
can
see
where
she
parked
what
he
talks
who
is
knocking
where
who/whom
why
when
how
what
Daniel
has
some
questions.
Rewrite
his
questions
by
using
object
clauses
introduced
by
question
words.
1.
Can
you
explain
___________________________
2.
I
wonder
_______________________________.
3.
I
am
not
sure
________________________________
________________.
4.
Can
you
tell
me
______________________________
5.
I
want
to
know
_______________________________.
6.
I
do
not
know
________________________________.
7.
I
cannot
imagine
_____________________________.
why
I
always
feel
tired
in
class
how
much
sleep
we
need
every
day
which
method
I
should
use
to
solve
the
problem
where
we
can
buy
a
good
dictionary
how
I
can
improve
my
English
quickly
whom
we
should
ask
for
help
what
life
would
be
like
without
hobbies
Help
Millie
complete
her
email.
whom/who
what/who
what
how
what
Grammar
B
We
give
suggestions
politely
using
structures
such
as：
Why
not…,
Why
don't
you…,
What/How
about…,
Let's
...
and
Shall
we
…
e.g.
Why
not
eat
less
and
exercise
more
Why
don’t
you
let
your
parents
know
you
need
them
What/How
about
choosing
your
hobby
according
to
the
time
you
have
Let’s
write
a
letter
to
Mr
Sigmund
Friend.
Shall
we
have
a
meeting
about
this
Millie
feels
tired
these
days.
Amy
and
Sandy
are
trying
to
help
her.
Use
the
correct
structures
to
help
the
girls
give
suggestions.
Millie:
I’m
always
feeling
tired
these
days.
There’s
so
much
homework
and
I’ve
spent
all
my
time
on
it.
Sandy:
(1)
__________________________
do
something
fun
Amy:
I
agree.
(2)
________________
go
to
the
cinema
Why
not/Why
don’t
you/Shall
we
Why
not/Shall
we
Sandy:
Good
idea.
But
I
don’t
know
what
films
are
on
now.
Millie:
I
don’t
want
to
see
any
films.
Amy:
(3)
______________
going
to
the
new
museum
My
dad
tells
me
that
it’s
big
and
modern.
I
know
where
it
is,
but
I’m
not
sure
when
it
closes.
Sandy:
(4)
________________
go
and
see
It’s
still
early.
Millie:
OK.
But
we
may
get
home
late.
(5)
______
tell
our
parents
first.
What/How
about
Why
not/
Shall
we
Let’s
Tip
We
also
use
perhaps
to
give
suggestions.
e.g.
Perhaps
you
should
manage
your
time
better.
A
suggestion
using
_________,
_____________,
______________
or
________
ends
with
a
question
mark.
A
suggestion
using
_________
ends
with
a
full
stop.
Why
not
Why
don’t
you
What/How
about
Shall
we
Let’s
Useful
phrases
and
expressions
1.
share
my
worries
with
sb.
与某人分享我的烦恼
2.
get
low/high
marks
获得低/高分
3.
have
difficulty
(in)
expressing
myself
在自我表达上有困难
4.
ask
sb.
for
help/advice
向某人寻求帮助/建议
5.
if
so
如果这样
6.
write
to
sb.
=
write
a
letter
to
sb.
写信给某人
7.
be
on/over
（电视/电影）上映/结束
8.
get
home
late/
arrive
home
late/
reach
home
late
回家晚
Exercises
1.
I’d
like
to
know
…
Where
is
your
school
2.
I
wonder
…
How
far
is
the
park
from
here
3.
I
can’t
imagine
…
How
did
he
find
his
lost
dog
4.
Can
you
explain
…
Why
does
the
sun
rise
in
the
east
5.
We
haven’t
found
out
…
What’s
wrong
with
Ann
I’d
like
to
know
where
your
school
is.
I
wonder
how
far
the
park
is
from
here.
I
can’t
imagine
how
he
found
his
lost
dog.
Can
you
explain
why
the
sun
rises
in
the
east
We
haven’t
found
out
what
is
wrong
with
Ann.
1.
---How
long
does
it
take
to
get
to
the
airport
---Forty
minutes.
But
it’s
foggy
today.
I’m
not
sure
_________
the
highway
will
close
soon.
A.
whether
B.
when
C.
how
D.
why
2.
---What
did
your
parents
think
about
your
decision
---They
always
let
me
do
______
I
think
I
should.
A.
when
B.
that
C.
how
D.
what
3.
Could
you
tell
me
how
long
_______
the
football
club
A.
you
have
joined
B.
have
you
joined
C.
you
have
been
in
D.
have
you
been
in
4.
The
old
lady
didn’t
know
_________
when
the
house
caught
fire.
A.
how
to
do
B.
how
to
do
it
C.
what
to
do
D.
what
to
do
it
5.
Could
you
show
me
__________________
A.
how
can
I
get
to
the
station
B.
where
is
the
station
C.
how
I
could
get
to
the
station
D.
how
I
can
reach
the
station
6.
He
told
me
the
earth
_______
around
the
sun.
A.
will
move
B.
moved
C.
is
moving
D.
moves
7.
Daniel
was
in
a
bad
mood
today
and
didn’t
act
normally.
I
wondered
_________________.
A.
what
had
he
happened
B.
what
was
he
happened
C.
what
had
happened
to
him
D.
what
he
had
happened
8.
I
don’t
know
when
he
______,
but
when
he
________,
I
will
let
you
know.
A.
will
come;
comes
B.
comes;
will
come
C.
will
come;
will
come
D.
comes;
comes
9.
I
don’t
know
if
it
________
tomorrow.
If
it
_______,
I’ll
stay
at
home.
A.
will
rain,
rains
B.
rains,
will
rain
C.
will
rain,
will
rain
D.
rains,
rains
10.
---There
are
many
cards
for
you
to
__________.
---But
I
don’t
know
which
one
to
___________.
A.
choose
from;
choose
from
B.
choose
from;
choose
C.
choose;
choose
from
D.
choose;
choose
Thank
you!