人教版高中英语选修6Unit 3 A healthy life Grammar课件（27张ppt)

(共27张PPT)
The
use
of
it
To
learn
the
use
of
“it”.
It
is
amazing
that
at
my
age
I
am
still
fit.
2.
It
is
easier
to
fall
than
to
rise.
3.
It
is
no
good
crying
over
spilt
milk.
The
subject
position
4.
I
think
it
best
that
you
should
do
more
exercise.
5.
He
found
it
difficult
to
accustom
himself
to
getting
up
early.
The
object
position
1.
It用作形式主语，真正的主语常为不定式(短语)、动词-ing形式(短语)或名词性从句。如：
It's
impossible
for
us
to
get
there
in
time.
It's
always
sad
saying
goodbye
to
someone
you
love.
It's
strange
that
she
never
mentioned
the
wedding.
?2.
It用作形式宾语，真正的宾语常为不定式(短语)、动词-ing形式(短语)或名词性从句。如：
Many
people
find
it
hard
to
stop
smoking.
She
finds
it
boring
staying
/
to
stay
at
home.
I
find
it
strange
that
she
doesn't
want
to
travel.
It
is
a
beautiful
day.
2.
It
never
rains
but
it
pours.
Here
“it”
refers
to
weather.
3.
It
was
time
to
quite
smoking.
Here
“it”
refers
to
time.
5.
It
is
10
kilometers
to
the
castle.
Here
“it”
refers
to
distance.
4.
It
takes
all
sorts.
世上的人形形色色，无奇不有。
模糊的指代一般情形，
或上下文可以了解的事物。
It用作非人称代词,
用来指代时间、日期、地点、天气、温度、距离、环境、情况等。
It
was
4
o'clock
and
the
mail
still
hadn't
come.
It's
quite
warm
at
the
moment.
It's
over
200
miles
from
London
to
Manchester.
It's
getting
very
competitive
in
the
car
industry.
2.
Some
young
people
think
they
look
attractive
when
they
smoke.
It
seems
_________________________
_________________________________
Giving
up
smoking
is
difficult
to
do.
It
is
__________________________
that
some
young
people
think
they
look
attractive
when
they
smoke.
difficult
to
give
up
smoking.
Rewrite
these
sentences
using
an
“it”
structure.
3.
Most
people
believe
smoking
causes
cancer.
It
is
believed
_________________________
4.
Don’t
try
to
quit
on
a
stressful
day.
It
is
no
use
___________________________
trying
to
quit
on
a
stressful
day.
that
smoking
causes
cancer.
5.
China
produces
one
third
of
the
world’s
cigarettes.
It
is
astonishing
_____________________
_______________________________
6.
You
are
not
allowed
to
advertise
cigarettes
in
this
country.
It
is
illegal
__________________________
________
that
China
produces
one-third
of
the
world’s
cigarettes.
to
advertise
cigarettes
in
this
country.
7.
My
father
has
quit
smoking
at
last.
It
is
wonderful
_____________________
____________________
8.
The
night
was
dark
and
stormy
when
the
old
man
started
his
journey.
It
was
a
__________________________
_____________________________
dark
and
stormy
night
when
the
old
man
started
his
journey.
that
my
father
has
quit
smoking
at
last.
9.
You
could
suffer
from
bad
health
if
you
keep
smoking.
It
is
likely
__________________________
________________________
10.
You
have
to
take
pills
to
control
your
blood
pressure.
It
is
necessary
_____________________
_________________________
for
you
to
take
pills
to
control
your
blood
pressure.
that
you
could
suffer
from
bad
health
if
you
keep
smoking.
1.
______
is
strange
that
he
should
have
taken
the
books
without
the
owner’s
permission.
(2018
江苏)
2.
______
took
him
a
long
time
to
acquire
the
skills
he
needed
to
become
a
good
dancer.
(2018
天津)
It
It
One
of
you
is
an
eyewitness
(E)
who
has
seen
a
robbery
or
an
accident.
The
other
is
the
policeman/policewoman
(P)
who
wants
as
much
information
as
possible.
Use
“it”
in
the
answers.
P:
What
was
the
weather
like
on
the
day
of
the
accident?
E:
It
was
beginning
to
rain
hard
and
the
ground
was
slippery.
P:
How
far
could
you
see?
E:
It
was
impossible
to
see
more
than
twenty
yards
ahead
of
you,
so
all
the
cars
were
travelling
very
slowly.
P:
What
about
Mr.
Li’s
car?
Was
it
travelling
slowly
too?
…
I.?根据括号内的汉语提示补全下面对话。
Alex:?1.
__________________
(现在几点)?
Nora:?7
p.m.
Alex:?What
about
going
for
a
walk?
Nora:?I
wanted
to,
but
2.
___________________?
(外面在下雨).
Shall
we
watch
TV
together?
What
time
is
it
now?
it's
raining
outside
Alex:?Sure.
Where
is
the
remote
control?
Nora:?I
3.
_____________________
(把它放
在抽屉里了)
last
night.
Ah-ha,
here
it
is!
Which
channel
do
you
want
to
watch?
Alex:?I
read
in
the
newspaper
that
there's
an
interesting
documentary
on
Channel
4
tonight.
Nora:?OK.
...
Interesting
indeed.
But
4.
_________________________________
(有这么多广告很烦人)
during
the
interval.?
(The
doorbell
rang.)
put
it
in
the
drawer????
?it's
very
annoying
to
have
so
many
ads?
Someone
is
ringing
the
doorbell.
5.
____________________
(去看看是谁).
Alex:?OK.
(Alex
opens
the
door
and
finds
his
neighbour
Rose
standing
outside.)
Rose:?Sorry
to
disturb
you,
but
would
you
please
turn
down
the
TV
a
little
bit?
I
6.
___________________________________
(发现难以集中注意力到我的学习上).
Alex:?Sorry!
We
will
turn
down
the
TV
at
once.
Rose:?Thanks.
find
it
hard
to
concentrate
on
my
studies
Go
and
see
who
it
is??
II.?把下面句子改写成含it的句子，并使句意基本保持不变。
Fill
a
glass
with
water
and
put
this
tablet
in
the
water.???????????????????????????????????
2.
To
master
English
in
a
month
or
two
is
impossible.?????????????????????????????????????
Fill
a
glass
with
water
and
put
this
tablet
in
it.
It
is
impossible
to
master
English
in
a
month
or
two.
3.
Whether
there
was
gold
left
in
the
mine
was
not
known.???????????????????????
??????????
4.
Do
you
find
staying
at
home
all
day
long
very
dull??
It
was
not
known
/
unknown
whether
there
was
gold
left
in
the
mine.
Do
you
find
it
very
dull
staying
at
home
all
day
long?
5.
Ten
years
has
passed
since
they
settled
down
in
this
village.??????????????????????????????
It’s
ten
years
since
they
settled
down
in
this
village.
1.
Review
the
use
of
“it”
and
finish
the
exercises
in
the
workbook.
2.
Preview
the
text
“HIV/AIDS:
Are
you
at
risk?”