“it”形宾 形主
it作形式宾语和引导强调句的用法小结
it作形式宾语和引导强调句的用法小结
1. IT作形式宾语的用法：
- 当主语是不定式或从句时，可以用it作为形式宾语。
例：I find it difficult to understand this book.（我发现理解这本书很困难。
）
- 当主语是动词的-ing形式时，可以用it作为形式宾语。
例：I enjoy it when you sing.（当你唱歌时，我很享受。
）
2. 引导强调句的用法：
- 强调句一般由以下结构构成：It is + 被强调部分 + that/who + 其他部分。
- 当被强调部分是名词时，用that来引导强调句。
例：It was John who won the competition.（赢得比赛的是约翰。
）
- 当被强调部分是代词时，用who来引导强调句。
例：It was he who broke the vase.（打破花瓶的是他。
）
- 当被强调部分是形容词或副词时，用that来引导强调句。
例：It is very important that you study hard.（你努力学习非常重要。
）
需要注意的是，强调句的语序需要颠倒，被强调部分放在句首。
此外，引导强调句的it没有实际意义，只起连接作用。
it作形式主、宾语的用法解析
it作形式主、宾语的用法解析it作形式主、宾语的用法解析IT这个词中英语中最渐渐不过了，当it作为形式主语和形式宾语出现时，你会用法吗?以下是店铺整理的it作形式主语和形式宾语的用法解析，希望对你有所帮助。
It 用作形式主语当不定式(短语)、动名词(短语)或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it 作形式主语置于句首，而将真正的主语放在句尾。
此时it只起先行引导作用 ...一、 It 用作形式主语当不定式(短语)、动名词(短语)或从句在某个句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。
此时it只起先行引导作用，本身无词义。
e.g. It is wrong to tell a lie.(说谎是错误的。
) 〔It为to tell a lie的形式主语〕It is no use arguing about it.(争吵是没用的。
) 〔It为arguing about it的形式主语〕It is uncertain who will come.(谁要来还不确定。
) 〔It为who will come的形式主语〕It 作形式主语的.常见句型：① It + be + 形容词+ to do sth. / doing / that ….e.g. It is very important to learn a foreign language.(学一门外语非常重要。
)It is useless crying over the spilt milk.(覆水难收。
)It was really surprising that she married a man like that.(她嫁给那样的男士真让人惊讶。
)② It + be +名词词组+ doing / that ….e.g. It is no good telling lies.(撒谎没好处。
It的用法
It的用法It的用法分为四类：人称代词it，形式主语/形式宾语it，强调句型it，固定结构it一、人称代词it：1. 指代前面提到的具体事物、动物，也可指婴儿或未知的人。
1) I was disappointed with the film , I had expected _______ to be much better.A. thatB. thisC. oneD. it2）They got a baby and _____was very lovely.2. 指代天气，时间，距离等抽象事物。
It’s cold today. What time is it?It’s far away from here. It’s quiet here.1) It’s high time that …常用虚拟语气,常用过去式表虚拟有时也用should(不省)+V原It’s high time that children ________________________.（上床睡觉）2) It’s the first/second/last…time(that)…从句用现在完成时态。
如果主句be为was，从句则用过去完成时态It’s the first time I （visit）here.This was the first time that I (visit) here.3）It is (has been)+时间段+since…从句通常是一般过去时如果主句be为was，则从句用过去完成时It is /has been 5 years since his father died.It is /has been 5 years since he lived here. 其意义为：_____________。
4) It + be + 时间段 + before…常译为___________________________。
it作形式主语和形式宾语
it作形式主语和形式宾语it既可作人称代词，用来表示动物或无生命的物体等，也可以作无人称代词，在句中作主语，表示“时间”、“距离”、“天气”等。
它还可以引导强调句，使语气得以加强。
此外，it 在句中能作引导词，充当句子中的形式上的成分，如形式主语、形式宾语等。
㈠it作形式主语：it作形式主语时没有具体的意义，而只是帮助把真正的主语移到句子后部去，使句子显得平稳一些。
it作形式主语时，可以代替三种形式：不定式、动名词和主语从句。
L it代替不定式短语常用于下列句型中：It + be + 形容词+ （for/of sb.） to do sth.It + be + 名词+ to do sth.It takes sb. some time to do sth. 干…花了某人…时间It,s up to sb. to do sth.干...是某人的职责或义务如：①It is everyone,s duty to obey the law.遵守法律是每个人的义务。
（it作形式主语，代替不定式短语to obey the law）②It is difficult for a foreigner to learn Chinese.对于一个外国人来说，学习汉语是困难的。
（it作形式主语，代替不定式短语to learn Chinese）③It is not right to use these places as rubbish dumps.把这些地方用来倒垃圾是不对的。
（it作形式主语，代替不定式短语to use these places as rubbish dumps）④It took them a year to build the bridge.建这座桥花了他们一年的时间。
（it作形式主语，代替不定式短语to build the bridge）⑤It is bad manners to stare at people.瞪着眼睛看人是不礼貌的。
it 两种用法
三层次：作宾语从句
I forgot ___ . I forgot when it was that Tom was born. 宾语从句用陈述语序。
15
判断强调句：
It is / was … that… 这个框架被拿掉，
句子仍然成立。
16
常见的还有：
It was not until… that ...
11
第二部分 强调句
12
结构： It is / was + 被强调部分+ that… 常强调状语部分。
13
Tom was born in 1998.
一层次：变强调句
It was in 1998 that Tom was born.
二层次：变特殊问句
When was it that Tom was born?
It’s no use reading without thinking. It’s no good living aimlessly.
10
5. It is + adj + to do sth. 1) It is important to learn English well.
2) What fun it is to hang out. (在外闲逛)
直到…才
It is what sb does that...
某人做的事情…
17
强调的成分是什么：
1.It was not until midnight that he went to bed.
(时间状语)
2. It is what you do not what you say that matters.
句式：主 + 谓 + it + adj. + to do .
it 作形式主语、形式宾语、it开头的短语
• It’s very kind of you to help me with the work. =You are kind to help me.
• It seemed selfish of him not to share his dictionary with others.
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It 作形式主语 8. It + be + 名词或形容词 + 动名词， • 名词和形容词：good, no good, no use, a waste of,
useless, senseless, no hope, hopeless等 • It’s a waste of time talking to her any more. • It is no use arguing about the matter with him.
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It 作形式主语 • 9. It + take ( sb. )+ 时间（金钱）+ 动词不定式 • It took the workers almost three years to finish
building the dam. • It will take a whole day to get to the top of the
• =He seemed selfish not to share his dictionary with others.
6/19/2021
It 作形式主语 • 7. It + be +名词词组+ 动词不定式，如： • It is not a good habit to stay up too late.
高中英语课件-it作形式主语及形式宾语句型
I would appreciate +it +if… 注意：表好恶的动词不能直接接宾语从句，
需要在从句前加上形式宾语it。
ห้องสมุดไป่ตู้
it的固定用法
When it comes to.... 当谈到…；
take it for granted that... 认为…理所当然
It is a fact(a pity, a shame, an honour，no wonder) +that从句 注：It is no good (use ) doing sth.(动名词短语做真正主语)
做某事是没益处(没有用的)的
注：区分常见的there be固定句型
There is no doubt that 毫无疑问 There is no need to do 没有必要 There is no point doing sth 做某事无意义
depend on it that...某人相信...
see to it that... 务必，保证
Let it be/go.
顺其自然；
That’s it. Make it. Get it.
对了，正是； 成功了； 懂了
一. it 用作形式主语 (1) It is+ adj. + that从句/to do sth
① It is clear, obvious,true,possible,certain.... that .....
“....是清楚（显然，真的，肯定）的” ② It is necessary, important, strange, natural.... that .....
It 的用法
It 的用法1：it 做形式主语，不定式to do 或that 引导的句子做真正的主语例句: It is important for us to protect environment. 保护环境对我们来说是很重要的。
（it 做形式主语，真正的主语是to protect environment）即to protect environment is important for us 是本句，但这样显得头重脚轻，所以用it 做形式主语.例句: It is common knowledge that science and technology is the first productive force.( it 做形式主语，that 引导的句子做真正的主语2：it 做形式宾语，不定式to do 或that 做真正的宾语例句：He thinks it very hard to master a foreign language.他认为掌握一门外语是很难的。
（he 做主语，thinks 做谓语，it 做形式宾语，very hard 做宾补，to master a foreign language 做真正的宾语，即He thinks to master a foreign language very hard.例句：He thinks it very essential that he should have a decent job.他认为他应该有一份体面的工作是很必要的即He thinks that he should have a decent job very essential.3: it 用于强调句，其结构是it is \was+强调部分+that例句：It was his carelessness that caused his fatal failure.正是他的粗心导致了他的致命失败。
（强调his carelessness,做caused的主语,即强调主语）例句：It was in the cinema that I came across my former English teacher.在电影院我巧遇我的前任英语老师。
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③It's no use trying to argue with Shylock.
4. It 作形式宾语. We think it important to learn a foreign language. 该句型中的it 作形式宾语，为了记忆方便我们可称该句型 为“7123结构"。 7指主句中常用的动词： believe,consider,make,suppose,think,find,feel； 1指的是形式宾语it； 2指的是宾补的两种形式：形容词或名词； 3指的是真正宾语的三种形式：不定式短语，动名词短语 或宾语从句。 We think it our duty to clean our classroom every day. They found it difficult that they would finish their work in two days.
3. it 用作形式主语①It Nhomakorabeais very clear that he’s round and tall like a tree. It is said that he has come to Beijing. It is a pity that he is ill.
②It is important (for her) to come to the party.