Module 5 Museums Unit 3 Language in use. 课件(共26张PPT，无音频)

(共26张PPT，无音频)
Module
5
Unit
3
Language
in
use
Grammar
Turn
left.
What
does
it
mean?
Turn
right.
Go
upstairs.
Go
downstairs.
Don’t
play
football.
Don’t
pick
the
flowers.
Don’t
smoke.
=
No
smoking.
Don’t
take
photos.
=
No
photos.
Don’t
park
your
car.
=
No
parking.
Don’t
turn
left.
=
No
left
turn.
Don’t
eat.
=
No
food.
Don’t
swim.
=
No
swimming.
A
C
Have
a
match:
Do
you
know?
1.
Which
of
the
following
signs
means
“No
Bikes”?
A
B
2.
Which
of
the
following
signs
means
“No
parking”?
B
C
3.
When
you
see
the
sign
in
the
subway(地铁）,
you
mustn’t
________.
A.
eat
or
drink
B.
drink
C.
sleep
A
4.
When
you
see
this
sign
on
the
road,
you
are
not
allowed
to_____.
A.
kill
a
dog
B.
walk
a
dog
C.
ride
a
dog
B
1.
Match
the
signs
with
the
rules.
1.
No
swimming.
2.
No
football.
3.
No
right
turn.
4.
No
parking.
5.
No
littering.
6.
No
food
and
drinks.
2.
Look
at
the
signs
and
write
the
rules.
________________
_______________
_____________
_____________
Don’t
touch.
No
smoking.
No
photos.
No
entry.
结构：
I
will
sing
a
song
if
I
am
happy.
Don’t
cross
the
road
if
the
light
is
red
You
must
stop
if
the
traffic
light
is
red.
If
引导条件状语从句
定义：用一个完整的句子表示某事发生所需的条件，即“在某种条件下，某事才能发生”，这样的句子称之为条件状语从句。
if
“如果,
假如”
它引导的条件状语从句表示假如有从句的动作发生，就会有主句动作的发生。
1.
If
you
are
hungry,
you
can
eat
some
bread
first
before
dinner.
=
You
can
eat
some
bread
before
dinner
if
you
are
hungry.
假如你点饿，你可以在饭前吃点面包。
2.
If
the
light
is
red,
don’t
cross
the
road.
=
Don’t
cross
the
road
if
the
light
is
red.
如果交通指示灯是红色，不要过马路。
3.
If
I
am
happy,
I
will
sing
a
song.
=
I
will
sing
a
song
if
I
am
happy.
如果我开心，我会唱歌。
4.
If
the
traffic
lights
are
red,
you
must
stop.
=
You
must
stop
if
the
traffic
lights
are
red.
如果交通指示灯是红色，你必须停下来。
位置：
If
引导条件状语从句
1.
先_____后_____，前后两句之间______隔开。
2.
先_____后_____，前后两句之间_______隔开。
主句
从句
用逗号
主句
从句
不用逗号
1.
主句是______，从句要用_______。
Don’t
go
and
play
football
if
you
don’t
finish
your
homework.
Please
call
me
if
he
comes
next
Sunday.
if
（如果）引导的条件状语从句
时态用法：
祈使句
一般现在时
2.
主句是________，if从句则________。
If
it
rains（从句），
I
will
stay
at
home.
I’ll
go
with
you
if
you
don’t
want
to
go
alone.（从句）
3.
主句含有______________,
if从句也用____________。
If
you
drive
too
fast,
you
may
have
an
accident.
You
must
stop
if
the
traffic
is
red.
一般将来时
一般现在时
may,
must等情态动词
一般现在时
2.You?may
______
(pass)?the?exam?if?you?___
(study)?hard.
4.
We
can
go
at
once?if?everybody?____(be)
here.
rains
will
stay
pass
study
is
3.
If
you
want
to
record,
________(press)
the
red
light.
press
1.If
it______
(rain)
tomorrow,
I
______
(stay)
at
home.
Fill
in
the
blankets
with
the
proper
form
3.
Complete
the
sentences
with
the
correct
form
of
the
words
in
brackets.
If
you
___________
(want)
to
see
old
machines,
________
(go)
to
the
museum.
2.
If
you
___________
(visit)
London,
___________
(take)
a
boat
trip
on
the
river.
3.
If
the
computer
does
not
_______(start)
immediately,
________(wait)
for
one
minute.
4.
If
the
weather
_________(get)
colder,
_______
(put)
on
more
warm
clothes.
want
go
visit
take
start
wait
gets
put
5.
If
any
student
______
(have)
a
high
fever,
________(send)
him/her
to
the
school
doctor
at
once.
6.
If
you
_______(want)
to
know
how
it
works,
_______(read)
the
book.
has
send
want
read
1.
If
you
do
not
like
the
TV
programme,
______________________.
2.
If
you
want
to
know
where
you
are,
_________________________________.
3.
If
you
cannot
arrive
at
the
station
on
time,
__________.
4.
If
you
need
to
send
an
email,
_____________________________________.
?turn
off?the?TV
go
to
ask
the
police
for
help
please
use
my
computer.
call
me
4.
Complete
the
sentences
with
your
own
ideas.
If
you
want
to
join
our
team,
practise
more
after
class.
summary
1.主祈从现
2.主将从现
if…
,
will/won’t
3.主情（can，may，should，must）从现
Homework
Finish
the
exercises
in
the
workbook.