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It
的用法
(
超全
)
用法及其句型和固定搭配，
是英语语法的重点、难点，又
是近几年考试的热点，因此在复习中应给予足够的重视。<
/p>
句型归纳：
1
．
It is
＋
adj
．
(
＋
for sb
．／
sth
．<
/p>
)
＋
to do
sth
．
用
于此句型的形容词有：
easy
，
hard
，
difficult
，<
/p>
possible
，
important
，
impossible
，
necessary
，
good
，
bad
，
exciting
，
interesting
，
surprising
等。
如：
It is
necessary to change your
job
．
It was very hard
for
them
to
walk
such
a
long
way
in
the
snow
．
2
．
It
is
＋
n
．
(
＋
for sb
．／
sth
．
)
＋
to do
sth
．
用于此句型的名词有：
pity,
shame,
pleasure,
ones
duty,
ones
job,
fun,
joy,
good
manners, bad manners
等。
如：
It is a
pity for you to have missed such a wonderful
play
．
It is bad
manners for the young to take up the seats
for the old
．
3
．
It is
＋
< br>adj
．＋
of
sb
．＋
to do
sth
．
此句型
< br>中的形容词主要描述某人的品德、特征。
能用于该句型的形容词有：
1
/
13
kind, nice, wise, silly, polite,
impolite, friendly,
foolish, clever
等。
如：
How silly
it was of you to give up such a good
chance
！
It is
friendly of the family to try to make me feel at
home in
their
house
．
4
．
It is
＋
< br>adj
．
（＋
n
．
）＋
doing
sth
．
此句型中
的形容词和名词常见的有：
no
／
little use,
no
／
much good, useless
等。
如：
Its no
use crying over spilt
milk
．不要为打翻牛奶而哭
泣。
5
．
It takes
sb
．＋一段时间＋
to do
sth
．
表示做某事花费
某人多长时间。
如：
It
took
us
half
an
hour
to
ride
to
the
town
by
the
sea
．
6
．
It
is
＋及物动词的过去分词＋
that
从句
此句型中常见的及物动词
的过去分词有：
said,
told, known, reported, recorded, thought,
believed,
considered
等。
如：
It
is
reported
that
the
Russian
President
will
visit
China
next
week
．
7
．
It
＋不及物动词＋
that
从句
此句型中不及物动
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词常见的有：
seem
，
happen
，
appear
，
matter
等。
如：
It seems
that there will be a heavy snow
tomorrow
．
It
happened
that
I
met
my
good
friends
in
the
museum
yesterday
．
碰
巧我昨天在博物馆遇见了我的好朋友。
8
．强调句型：
It is
＋被强调部分＋
th
at
／
who
从句
在使用强调句型时要注
意，指人时可以用
who
或
that
，其它情况一律用
that
。
如：
It was
under the bed that my brother hid the ball this
morning
．
It
is
Mr
Bell
who
／
that
often
comes
and
looks
after
the
old man
．
9
．
It
is
／
has
been
＋一段时间＋
since
从句。
如：
It is
／
has been three years since
we saw each other
last
．
10
．
It is (high) time that
sb
．
did
sth
．
该句型表示
某人现在该做某事了，从句常用过去时（虚拟语气）说明现在应该做
的事情。<
/p>
如：
Its
six
oclock
．
It
is
high
time
that
we
went
home
now
．
It
常用的固定搭配：
3
/
13
1. make it
（
1
）在口语当中相当于
succeed
，表示：
成功、做到、说定、赶上、及时到达
例
It’s
hard
to
make
it
to
the
top
in
show
business.
（
2
）在口语中
相当于
fix
the date
for
，表示约定好时间
例
Shall
we
meet
next
week
？
OK.
We
just
make
it
next
Saturday.
2.
as
it
is
（
1
）
相当于
in
fact
，
in
reality
表示事实上，实际情况是
例
We had planed to finish
the task
today
，but
as
it
is
we
probably
won’t
finish
it
until
next
week.
（
2
）相当于方式状语从句，表示照原样
例
Leave
the
table
as
it
is. 3. as it were
相当于
as one might
say
，
that is to say
，
表示也就是说，可以说，换句话说
例
He
is
，
as
it
were
，
a
modern
Sherlock Holmes. 4.
if it weren’t for/if it hadn’t been for
用来引导虚拟语气，相当于
without
，
or but
for
，表示如果不是，
要不是
例
If
it
weren’t
for
Tom，I
wouldn’t
be
alive
today.
5.
that’s it （
1
）相当于
That’s all. That’s so much.
表示
至此为止，没有别的了
例
You can have one more
sweet
，
and
that’s
it.
（
2
）
相当于
That’s
right.表示对啦
例
I
guess
the
key to the problem is
thechoice A That’s it. 6. catch it
在
口语中，相当于
be punished/scolded
for doing sth. wrong.
表
示因做错事
而挨骂，受责备，受批评，受惩罚
例
We’ll really
catch it form
our teacher if we’re late for class again. 7.
have it
（
1
）相当于
say
，
insist
表示说，主张，表明，硬说
例
Rumour has
it
that they are
getting
divorced.
（
2
）相当于
get
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to
know
something
，表示
了解，知道，获悉
例
I
had
it
from
John
that she was going
abroad. 8. have what it takes
在口语中，
相当于
be well
qualified for
，表示具有成功的条件
例
You can
take
it from me that your daughter has what it takes to
be a
star. 9. so it seems / appears.
10. Keep at it
！
（Don’t give
up
！
）
相当于
go
on
，表示继续做，不放弃
例
My
teacher
asked
me
to
keep
at
it.
11.
Go
it
！
（
Go
on
！
）拼命干，莽撞
12.
Now
you
have
done
it
！
（
You
have
done
sth.
wrong.
）
13.
Now
you’ll
catch
it！
（You’ll
be punished.）
14. As it
happened
，
在口语中，相当
于
it’s
a
pity
that，表示真不凑巧，真遗憾
例
As
it
happened
，
they
were out. 15. As it turned
out
，
在口语中，相当于
it was
found
to
be
in
the
end
，表示最后被证明是
例
As
it
turned
out
，
his statement
was false. 16. Such as it
is
（
they
are
）
在口
语中，相当于
although
it may not be worth
much
，表示虽然没有
多大价值
例
You can borrow my exam
notebook
，
such as it is.
17. Take it/things easy.
相当于
Don’t worry
or
don’t
hurry.
用来劝告别人，
表示不
要慌，
别担心，
存住气
例
Take
it
easy
！
He
will
do
it
well.
18.
Take
it
from
me.
在口语中，相当于
believe
me what I
say.
表示请相信我的话，我敢担保
例
You can take it
from
me
that
he
will
make
it
this
time.
19.
For
what
it
is
worth
在口语中，相当于
although
I’m not sure it’s of
v
alue
，表示
5
/
13
不管其价值如何
例
Here
is
the
article
I
promise
you
，
for
what
it’s worth. 20. Worth
it 在口语中，相当于
useful
，表示有好
处，值得做
例
Don’t
hesitate
about
it！
It’s
worth
it.
21.
Believe
it
or
not.
表示信不信由你
例
Believe
it
or
not
，
Tom
is
getting married to Mary
next Sunday. 22. Take it or leave it.
v.
要么接受要么放弃
例
That
is
my
last
offer.
You
can
take
it
or leave it. 23. It all
depends/that all depends
在口语中，
相当于
it hasn’t been decided yet，表示那得看情况，还没有定
下
来
例
Are
you
going
to
the
countryside
for
holiday
？
It/That
all
depends.
24.
It’s
up
t
o
sb.
在口语中，相当于
it’s
decided
by
sb.
表示由决定，由负责，取决于
例
Shall
we
go
out
for
dinner
？
用法小结：
It
用作实词
表达以下概念
:
指代前文提到的事物，前文中的
this,
that
；
替代前文中的内容；
指代一位性别不明的小孩或未知
的人；
指代未指明但谈话双方都知道的那件事；
指代时间、天气、
气候、距离等自然现象。
一、
it
作人称代词的用法
1.
指事物
作为人称代词，
it
可
以除人以外的一切事物或动物。
如：
I dropped my watch and it broke.
我把手表掉在地上摔坏了。
Its hard work, but I enjoy it.
工作很辛苦，可是我乐意干。
Where is the dog? Its in the bedroom.
狗在哪
?
在卧室里。