it的用法
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It的用法
It 用法归纳
一、 指代it
二、 形式it
三、含有it的句型
四、强调it
一、指代it
用来指代上文提到的事物。
1.----Pass me your book. ----- Here it is .
2.The Olympic Game was held in Beijing in 2008. It made the Chinese proud.
2. 表示时间，天气， 距离，温度等。
It’s 10:08
1.It was cold yesterday.
2.It may be 25 kms from here to the town.
3、作为人称代词，it可以用来指东西、动物、婴儿和未确定身份的人。
1.The cat is in the garden, isn't it?
2. (有人在敲门）Who is it?
It’s lovely
It weighs only 3 kilos.
It’s a large sum of money.
二形式it-------
形式主语，
形式宾语
It is clear ( obvious， true， possible， certain....) that .....
It is certain that he will pass the exam.
2. It is important ( necessary， strange， natural...) that ... that 后的从句中要用虚拟语气（should + 动词原形。
It is important that we (should) have enough practice.
3. It is a pity ( a shame ... ) that ...
译：很遗憾他今天生病了。
__________________________________
4. It is our hope ( a duty/ an honour ... ) that ...
译:照顾老人是我们的职责。
___________________________________
It’s our duty that we take care of the old.
It is a pity that he is ill today.
5. It is said (reported, thought,?believed,? hoped）? that ...
常某某“据说（据报道，据悉．．．）”。
It is reported that our team has won the game.
6. It is suggested ( ordered /demanded/insisted/commanded... ) that ... that 后的从句要用虚拟语气（should + 动词原形），should 可以省；常某某“据建议；有命令．．．） It was ordered that we ( should ) arrive there in two hours.
It is suggested that the meeting _________________(put off).
should be put off
7. It happens (seems， appears ?)等不及物动词+that... 碰巧．．./看来．．．/似乎XXXXX.
It happened that he met his teacher in the street.
8. It is adj ( for sb. ) to do sth. 形容词为important， necessary， natural ， impossible ， unusual ， easy ， hard ，difficult, dangerous ，likely, useful等。
译：对于我们来说学好英语是重要的。
__________________________________
It is important for us to learn English well .
9. It is adj ( of sb. ) to do sth. 形容词为 good ， nice， polite， kind ， brave ， careless， honest ，considerate,?wise ， clever ， careful,??lazy ， rude ， foolish 等。
例：It is kind of you to say so.
10.It替代作主语的动名词? It’s?no?good/use?doingXXXXX? It’s?(well) worth?doingXXXXX? 例:?It’s?no?use?crying?over?spilt?milk.?
11. It takes sb.... to do sth. “做．．．要花费某人．．．”。 例:It took thousands of people many years to build the Great Wall.
1.动词+ it + 形容词/名词+（ for sb +）to do
或 that 从句
think,
make,??
find,?
feel,?
consider,?
keep
XXXXX?
hard
useful
important
necessary
XXXXX
The chairman thought ___ necessary to invite Mr. Obama to visit Peking.
A. that B. it C. this D. him
2. 动词make +it+ a rule +that从句
例：He makes it a rule that he gets up before dawn.
3.?动词?+it?+?that (if /when ------)
enjoy,?
like,??
dislike,?
appreciate,
hate,? 例:?I?hate?it when people speak with a full mouth.
译：如果你能帮助我，我将不胜感激。
___________________________________
I would appreciate it if you can help me.
1. It is time (high time ) that ... 从句应该用虚拟语气，① 常用过去时态表示虚拟．② 也用should + 动词原形，should 不能省，常某某＂是（正是）．．．的时某某．．．＂ It is time that children should go to bed. = It is time that children went to bed.
2. It is the first ( second ... ) time that ...
It is the first time that I have been here. It was the first time that I had been here.
3. It is ... when ...。 when 引导时间状语从句，主句中的 it 指时间，表语由具体的时间充当，常某某＂当．．．的时候，是．．．＂ It was 5 o’clock when he came here.
4. It is/has been .... since(过去时) ...。
since 引导的从句通常是一般过去时态，而且是瞬间动词。“做某事已经多久了”
译：他从大学毕业5年了。
_______________________________________
It is ( has been ) 5 years since he graduated from college.
5. It was /wasn’t+段某某+before从句
过了多久/没过多久才------
It will/will not+段某某+before从句
还得过多久/用不了多久就------
It was a long time before we met again. It will be 2 years before we meet again.
译：我们该采取行动了。?
It is (high)?time?that?we?should?take action.?
译?：这是他第三次没有通过驾照考试。
It is?the?third?time?that?he?has?failed?the?
driving?test.?
?
?
It?is/was+被强调部分+?that (who)XXXXX?
用来强调谓语动词以外的任何句子成分。当
被强调部分是人时也可以用who。
It was a new book he wanted to buy.
It was Tom I met in the street.
3. It was during the holiday he got to know that girl.
4. It was in the park I saw Kate crying last night.
5. It was he who (be) late yesterday.
6. It was the teacher together with the boy students who (be) in the classroom.
was
was
that
that
who
that
7. is it has made Peter success.
A .What that B. That what
C. What what D. That that
How is it that she turned down our help?
Where was it that XXXXX
When was it thatXXXXX.
Who was it thatXXXXX
A
It is the ability to do the job not where you come from or what you are __ matters.
A. one B. that C. what D. it
It is / was + 被强调的部分 +that / who+句子其他成分
高考真题
8.对 notXXXXXuntil 进行强调
He didn’t realize his fault until he graduated from high school.
It was not until he graduated from high school that he realized his fault .
9.区分强调句型与从句
It was in the river he often swam .
He came to the river he often swam.
It was on Sunday the strangers came to our village.
It was Sunday the strangers came to our village.
It is not until XXXXXXXXXX thatXXXXXXXXXX
强调句型
that
where
定语从句
that
强调句型
时间状语从句
when
随堂练：
1.It is high time that he _____(write) a letter to his family .
2.It was not until she took off her glasses______ I realized she was a film star.
3.I t is no use ________(argue) with Bill because he will never change his mind.
4.It’s already 6 o’clock _____ we got back home from the long journey.
5.We feel it our duty ____________(make) our country a better place.
wrote
that
arguing
when
to make
6.It has been 16 years ______ they married in2000.
7.It happened _____ he met his teacher in the street.
8.It is the first time that I ___________ (come) here.
单句改错
1.It is bad manners for the young take up the seats for the old.
2.I would appreciate that if you could help me sovle the problem.
3.It was a long time since we met each other last time .
since
that
have come
＾
to
______
it
____
is
4.I don't think it possible to mastering a
foreign language without much memory work.
5.It will be many years since the situation improves.
6.----Who is knocking at the door?
----He must be Martin.
________
master
_____
before
__
It
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