人教版选修六 Unit 3 A healthy life Grammar：it的用法 课件（31张）

(共31张PPT)
Book
VI
Unit
3
A
healthy
life
Grammar
1
Lead
in
2
Grammar
3
Discussion
4
Homework
Content
No
matter
when
to
begin,
it
is
important
not
to
stop
after
the
beginning;
no
matter
what
the
end,
it
is
important
not
to
regret
after
the
end."
不管从什么时候开始，重要的是开始以后不要停止；不管在什么时候结束，重要的是结束以后不要后悔。
It
is
no
use
doing
what
you
like;
you
have
got
to
like
what
you
do.
不能爱哪行才干哪行，要干哪行爱哪行。
Life?is
really
simple,
but
we
insist
on
making
it
complicated.”
–
Confucius
生活其实很简单，但我们总是把它复杂化。”——孔子
In
the
end,
it’s
not
the
years
in
your
life
that
count.
It’s
the
life
in
your
years.
–
Abraham
Lincoln
到头来，你活了多少岁不算什么，重要的是你是如何度过这些岁月的。——亚伯拉罕?林肯
it
的用法
做人称代词
做非人称代词
做形式主语
做形式宾语
特殊句型中的it
代词
引导词
it可用来指代前文提到的人,物或事情,也可以用来指时间,金钱,距离,天气等自然现象
一、it
做代词:
1.
it作人称代词
⑴.
指前文提到的事物，以避免重复:
Shantou
is
a
beautiful
city,
isn’t
it?
⑵.
指不明性别的婴儿或不明身份的人:
Look，that’s
a
baby!
It
looks
like
a
doll.
Is
this
your
wallet?
No,
it
isn’t.
⑶.代替指示代词this/that
There
is
a
cat
on
the
desk.
It
looks
like
a
hat.
Who
is
knocking
at
the
door?
It
must
be
Bill.
2.非人称代词it
⑴.指天气：
It
is
a
lovely
day,
isn’t
it?
⑵.指时间:
It
was
nearly
midnight
when
she
came
back.
⑶.指环境:
It
was
very
quiet
in
the
café.
⑷.指距离：
It
is
half
an
hour’s
walk
to
the
city
centre.
二、it
做引导词
6个主句中常用的动词：think,believe,make,find,consider,feel；
1
形式宾语it；
　
2
宾补的两种形式：形容词或名词；
3
真正宾语的三种形式：
①不定式短语
②动名词短语
③that引导的宾语从句
1.It做形式宾语
it
作形式宾语，记忆方便---“6123结构”。
句型：主语+动词+it
+adj./n.+(for
sb.)
to
do/doing/that从句
We
think
it
our
duty
to
clean
our
classroom.
　
I
felt
it
no
use
arguing
with
him.
　
They
found
it
difficult
that
they
would
finish
their
work
in
two
days.
I
consider
it
very
interesting
to
study
English.
He
made
it
a
rule
that
we
should
keep
silent
in
class.
I
like___in
the
autumn
when
the
weather
is
clear
and
bright.
A.
this
B.
that
C.
it
D.
one
点拨:这是it作形式宾语的一种特殊用法.少数动词(如like,
love,
enjoy,
dislike,
hate,
appreciate等)或包含介词的动词短语(如see
to,
depend
on等)后接宾语从句,必须先由it担任形式宾语,再接从句.
I
like
(enjoy,
hate…)
it
when….
I
would
appreciate
it
if…
…see
to
(depend
on…)
it
that…
Sentence
patterns:
C
形式宾语特殊用法1
I?hate?it?you?can?dance?so?well?but?I?can't.?
I?would
appreciate?it?if
you
lend
me
some
money.
I?
enjoy?it?when
we
are
bathing
in
the
sunshine.
He
decided
on?it?where
we
would
go
this
weekend..
动词?+it?+?to
sb.?+?that…?
owe?it?to?sb.?that…把…归功于…?
leave?it?to?sb?that…把…留给某人去做?
take?it?for?granted?that?把…想当然?
keep?it?in?mind?that…?把…记在心里
他想当然地以为女朋友会再回来。
He
took
it
for
granted
that
his
girlfriend
would
come
back
again.
形式宾语特殊用法2
三、it做形式主语:
1.
___is
necessary
to
be
prepared
for
a
job
interview.
Having
the
answers
ready
will
be
of
great
help.
2.
The
Foreign
Minister
said,
“___is
our
hope
that
the
two
sides
will
work
towards
peace.”
3.
___is
known
to
everybody
that
the
moon
travels
round
the
earth
once
every
month.
形式主语
高考真题
It
It
It
adj.
possible
It
is
/
was
+
necessary
+
(
for
sb.
)
to
do
sth.
/
clause
important
…
p.p.(过去分词)
said
It
is
/
was
known
+
that-clause
believed
…
n.
one’s
duty
It
is
/was
+
one’s
hope
+
clause
/(
for
sb.
)
to
do
sth.
an
honour
…
形式主语
It
is
very
clear
that
he’s
round
and
tall
like
a
tree.
　　
=
That
he’s
round
and
tall
like
a
tree
is
very
clear.
It
is
kind
of
you
to
say
so.
=
You
are
kind
to
say
so.
It
is
important
for
her
to
come
to
the
party.
=
It
is
important
that
she
(should
)
come
to
the
party.
It
is
a
pity
that
such
a
thing
(
should
)
happen
in
your
class.
　
It
is
a
pity
that
he
is
ill.
It
is
time
that
children
should
go
to
bed.
　　
=
It
is
time
that
children
went
to
bed.
It
is
suggested
that
the
meeting
(
should
)
be
put
off.
　
It
was
ordered
that
we
(
should
)
arrive
there
in
two
hours.
1.
It
is/was
the
first
(
second
...
)
time
that
...
It
is
the
first
time
I
have
been
here.
=
This
is
the
first
time
I
have
been
here.
2.
It
happens
(seems，
appears,
comes?about,?
turns?out,
looks)
that...
It
happened
(
so
happened
)
that
he
met
his
teacher
in
the
street.
It
seems
that
he
will
be
back
in
a
few
days.
It
was
the
first
time
I
had
been
here.
3.
It
takes
sb.
+时间
to
do
sth.
花某人时间做…
It
took
thousands
of
people
many
years
to
build
the
Great
Wall.
4.
It
is
no
good
(use
)
doing
sth.做某事没用
It
is
no
good
learning
English
without
speaking
English.
It
seemed
as
if
he
were
dying.
6.
It
looks
(
seems
)
as
if
...
好像…
It
looks
as
if
he
is
ill.（真的病了）　
It
looks
as
if
he
were
ill.
（没有生病）
It
doesn’t
matter
if
they
are
old.
5.
It
doesn’t
matter
whether
(
if
)
...是否…没关系
四、it固定用法:
How
is
it
with
your
study?
学习好吗？
That’s
it
.
这就对了。
It
went
hard
with
him.
他身遇不幸。
It
is
all
over
with
me.
我完蛋了。
We
must
fight
it
out.我们必须坚持到底。
I
can’t
help
it.
我没有办法。
1.
It的一些习惯用法
2.在一些固定用法中考查
常见的固定用法有:
make
it
成功，安排在或定在某时间
forget
it
别提了，忘了它吧,
算了
Don’t
mention
it
别提了，表示不用谢
It
doesn’t
matter
没关系
It(That)
depends
视情况而定
You
guessed
it
你猜着了
It’s
hard
to
say
很难说
It’s
up
to
you
to
do
sth.由你来决定做某事
Exercise
Bar
1.
The
doctor
advised
Vesa
strongly
that
she
should
take
a
holiday,
but
__
didn’t
help.
A.
it
B.
she
C.
which
D.
he
2.
Someone
is
ringing
the
doorbell.
Go
and
see__.
A.
who
is
he
B.
who
he
is
C.
who
is
it
D.
who
it
is
3.
We’ve
been
looking
at
the
houses
but
haven’t
found
__
we
like
yet.
A.
one
B.
ones
C.
it
D.them
4.
The
Foreign
Minister
said,
“__
our
hope
that
the
two
sides
will
work
towards
peace.
A、This
is
B、There
is
C、That
is
D、It
is
5.
____in
the
regulations
that
you
should
not
tell
other
people
the
password
of
your
e-mail
account.
A.
What
is
required
B.
What
requires
C.
It
is
required
D.
It
requires
6.
He
didn’t
make
__
clear
when
and
where
the
meeting
would
be
held.
A.
this
B.
that
C.
it
D.
these
7.–Don’t
you
think
it
necessary
that
he
__
to
Miami
but
to
New
York?
–
I
agree,
but
the
problem
is
__
he
has
refused
to.
will
not
be
sent;
that
B.
not
be
sent;
that
C.
should
not
be
sent;
what
D.
should
not
send;
what
8.
I
like
__
in
the
autumn
when
the
weather
is
clear
and
bright.
A、this
B、that
C、it
D、one
9.I
would
appreciate
it
__
you
call
back
this
afternoon
for
the
doctor’s
appointment.
A、until
B、if
C、when
D、that
10.
Don’t
__
that
all
those
who
get
good
grades
in
the
entrance
examination
will
prove
to
be
most
successful.
A.
take
as
granted
B.
take
this
for
granted
C.
take
that
for
granted
D.
take
it
for
granted
11.
It
was
in
New
Zealand
__
Elizabeth
first
met
Mr.
Smith.
A.
that
B.
how
C.
which
D.
when
12.
-Shall
we
go
to
the
art
exhibition
right
away?
-__.
A.
It’s
your
opinion
B.
I
don’t
mind
C.
It’
all
up
to
you
D.
That’s
your
decision
Homework
1.Read
the
new
words
2.Preview
the
reading
on
page
2
Thank
you!
See
you
tomorrow!